Step | Hyp | Ref
| Expression |
1 | | fourierdlem62.k |
. . . 4
β’ πΎ = (π¦ β (-Ο[,]Ο) β¦ if(π¦ = 0, 1, (π¦ / (2 Β· (sinβ(π¦ / 2)))))) |
2 | | eqeq1 2737 |
. . . . . 6
β’ (π¦ = π β (π¦ = 0 β π = 0)) |
3 | | id 22 |
. . . . . . 7
β’ (π¦ = π β π¦ = π ) |
4 | | oveq1 7413 |
. . . . . . . . 9
β’ (π¦ = π β (π¦ / 2) = (π / 2)) |
5 | 4 | fveq2d 6893 |
. . . . . . . 8
β’ (π¦ = π β (sinβ(π¦ / 2)) = (sinβ(π / 2))) |
6 | 5 | oveq2d 7422 |
. . . . . . 7
β’ (π¦ = π β (2 Β· (sinβ(π¦ / 2))) = (2 Β·
(sinβ(π /
2)))) |
7 | 3, 6 | oveq12d 7424 |
. . . . . 6
β’ (π¦ = π β (π¦ / (2 Β· (sinβ(π¦ / 2)))) = (π / (2 Β· (sinβ(π / 2))))) |
8 | 2, 7 | ifbieq2d 4554 |
. . . . 5
β’ (π¦ = π β if(π¦ = 0, 1, (π¦ / (2 Β· (sinβ(π¦ / 2))))) = if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) |
9 | 8 | cbvmptv 5261 |
. . . 4
β’ (π¦ β (-Ο[,]Ο) β¦
if(π¦ = 0, 1, (π¦ / (2 Β· (sinβ(π¦ / 2)))))) = (π β (-Ο[,]Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) |
10 | 1, 9 | eqtri 2761 |
. . 3
β’ πΎ = (π β (-Ο[,]Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) |
11 | 10 | fourierdlem43 44853 |
. 2
β’ πΎ:(-Ο[,]Ο)βΆβ |
12 | | ax-resscn 11164 |
. . 3
β’ β
β β |
13 | | fss 6732 |
. . . . . 6
β’ ((πΎ:(-Ο[,]Ο)βΆβ
β§ β β β) β πΎ:(-Ο[,]Ο)βΆβ) |
14 | 11, 12, 13 | mp2an 691 |
. . . . 5
β’ πΎ:(-Ο[,]Ο)βΆβ |
15 | 14 | a1i 11 |
. . . . . . . . 9
β’ (π = 0 β πΎ:(-Ο[,]Ο)βΆβ) |
16 | | difss 4131 |
. . . . . . . . . . . . . . . . 17
β’
((-Ο(,)Ο) β {0}) β (-Ο(,)Ο) |
17 | | elioore 13351 |
. . . . . . . . . . . . . . . . . 18
β’ (π β (-Ο(,)Ο) β
π β
β) |
18 | 17 | ssriv 3986 |
. . . . . . . . . . . . . . . . 17
β’
(-Ο(,)Ο) β β |
19 | 16, 18 | sstri 3991 |
. . . . . . . . . . . . . . . 16
β’
((-Ο(,)Ο) β {0}) β β |
20 | 19 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β ((-Ο(,)Ο) β {0}) β β) |
21 | | eqid 2733 |
. . . . . . . . . . . . . . . . 17
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ π₯) = (π₯ β ((-Ο(,)Ο) β
{0}) β¦ π₯) |
22 | 19 | sseli 3978 |
. . . . . . . . . . . . . . . . 17
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β π₯ β
β) |
23 | 21, 22 | fmpti 7109 |
. . . . . . . . . . . . . . . 16
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ π₯):((-Ο(,)Ο) β
{0})βΆβ |
24 | 23 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β (π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯):((-Ο(,)Ο) β
{0})βΆβ) |
25 | | eqid 2733 |
. . . . . . . . . . . . . . . . 17
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2)))) |
26 | | 2re 12283 |
. . . . . . . . . . . . . . . . . . 19
β’ 2 β
β |
27 | 26 | a1i 11 |
. . . . . . . . . . . . . . . . . 18
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β 2 β β) |
28 | 22 | rehalfcld 12456 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β (π₯ / 2) β
β) |
29 | 28 | resincld 16083 |
. . . . . . . . . . . . . . . . . 18
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β (sinβ(π₯ /
2)) β β) |
30 | 27, 29 | remulcld 11241 |
. . . . . . . . . . . . . . . . 17
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β (2 Β· (sinβ(π₯ / 2))) β β) |
31 | 25, 30 | fmpti 7109 |
. . . . . . . . . . . . . . . 16
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))):((-Ο(,)Ο) β
{0})βΆβ |
32 | 31 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β (π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))):((-Ο(,)Ο) β
{0})βΆβ) |
33 | | iooretop 24274 |
. . . . . . . . . . . . . . . 16
β’
(-Ο(,)Ο) β (topGenβran (,)) |
34 | 33 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β (-Ο(,)Ο) β (topGenβran (,))) |
35 | | 0re 11213 |
. . . . . . . . . . . . . . . . 17
β’ 0 β
β |
36 | | negpilt0 43977 |
. . . . . . . . . . . . . . . . 17
β’ -Ο
< 0 |
37 | | pipos 25962 |
. . . . . . . . . . . . . . . . 17
β’ 0 <
Ο |
38 | | pire 25960 |
. . . . . . . . . . . . . . . . . . . 20
β’ Ο
β β |
39 | 38 | renegcli 11518 |
. . . . . . . . . . . . . . . . . . 19
β’ -Ο
β β |
40 | 39 | rexri 11269 |
. . . . . . . . . . . . . . . . . 18
β’ -Ο
β β* |
41 | 38 | rexri 11269 |
. . . . . . . . . . . . . . . . . 18
β’ Ο
β β* |
42 | | elioo2 13362 |
. . . . . . . . . . . . . . . . . 18
β’ ((-Ο
β β* β§ Ο β β*) β (0
β (-Ο(,)Ο) β (0 β β β§ -Ο < 0 β§ 0 <
Ο))) |
43 | 40, 41, 42 | mp2an 691 |
. . . . . . . . . . . . . . . . 17
β’ (0 β
(-Ο(,)Ο) β (0 β β β§ -Ο < 0 β§ 0 <
Ο)) |
44 | 35, 36, 37, 43 | mpbir3an 1342 |
. . . . . . . . . . . . . . . 16
β’ 0 β
(-Ο(,)Ο) |
45 | 44 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β 0 β (-Ο(,)Ο)) |
46 | | eqid 2733 |
. . . . . . . . . . . . . . 15
β’
((-Ο(,)Ο) β {0}) = ((-Ο(,)Ο) β
{0}) |
47 | | 1ex 11207 |
. . . . . . . . . . . . . . . . . . 19
β’ 1 β
V |
48 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ 1) = (π₯ β
((-Ο(,)Ο) β {0}) β¦ 1) |
49 | 47, 48 | dmmpti 6692 |
. . . . . . . . . . . . . . . . . 18
β’ dom
(π₯ β ((-Ο(,)Ο)
β {0}) β¦ 1) = ((-Ο(,)Ο) β {0}) |
50 | | reelprrecn 11199 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ β
β {β, β} |
51 | 50 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β β β {β, β}) |
52 | 12 | sseli 3978 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ β β β π₯ β
β) |
53 | 52 | adantl 483 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((β€ β§ π₯
β β) β π₯
β β) |
54 | | 1red 11212 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((β€ β§ π₯
β β) β 1 β β) |
55 | 51 | dvmptid 25466 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (β D (π₯ β
β β¦ π₯)) =
(π₯ β β β¦
1)) |
56 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
(TopOpenββfld) =
(TopOpenββfld) |
57 | 56 | tgioo2 24311 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
(topGenβran (,)) = ((TopOpenββfld)
βΎt β) |
58 | | sncldre 43715 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (0 β
β β {0} β (Clsdβ(topGenβran (,)))) |
59 | 35, 58 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ {0}
β (Clsdβ(topGenβran (,))) |
60 | | retopon 24272 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’
(topGenβran (,)) β (TopOnββ) |
61 | 60 | toponunii 22410 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ β =
βͺ (topGenβran (,)) |
62 | 61 | difopn 22530 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
(((-Ο(,)Ο) β (topGenβran (,)) β§ {0} β
(Clsdβ(topGenβran (,)))) β ((-Ο(,)Ο) β {0}) β
(topGenβran (,))) |
63 | 33, 59, 62 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((-Ο(,)Ο) β {0}) β (topGenβran
(,)) |
64 | 63 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β ((-Ο(,)Ο) β {0}) β (topGenβran
(,))) |
65 | 51, 53, 54, 55, 20, 57, 56, 64 | dvmptres 25472 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β (β D (π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯)) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
1)) |
66 | 65 | mptru 1549 |
. . . . . . . . . . . . . . . . . . . 20
β’ (β
D (π₯ β ((-Ο(,)Ο)
β {0}) β¦ π₯)) =
(π₯ β ((-Ο(,)Ο)
β {0}) β¦ 1) |
67 | 66 | eqcomi 2742 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ 1) = (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯)) |
68 | 67 | dmeqi 5903 |
. . . . . . . . . . . . . . . . . 18
β’ dom
(π₯ β ((-Ο(,)Ο)
β {0}) β¦ 1) = dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯)) |
69 | 49, 68 | eqtr3i 2763 |
. . . . . . . . . . . . . . . . 17
β’
((-Ο(,)Ο) β {0}) = dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯)) |
70 | 69 | eqimssi 4042 |
. . . . . . . . . . . . . . . 16
β’
((-Ο(,)Ο) β {0}) β dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯)) |
71 | 70 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β ((-Ο(,)Ο) β {0}) β dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯))) |
72 | | fvex 6902 |
. . . . . . . . . . . . . . . . . . 19
β’
(cosβ(π₯ / 2))
β V |
73 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (cosβ(π₯
/ 2))) = (π₯ β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2))) |
74 | 72, 73 | dmmpti 6692 |
. . . . . . . . . . . . . . . . . 18
β’ dom
(π₯ β ((-Ο(,)Ο)
β {0}) β¦ (cosβ(π₯ / 2))) = ((-Ο(,)Ο) β
{0}) |
75 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((β€ β§ π₯
β β) β 2 β β) |
76 | 53 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
((β€ β§ π₯
β β) β (π₯ /
2) β β) |
77 | 76 | sincld 16070 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((β€ β§ π₯
β β) β (sinβ(π₯ / 2)) β β) |
78 | 75, 77 | mulcld 11231 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((β€ β§ π₯
β β) β (2 Β· (sinβ(π₯ / 2))) β β) |
79 | 76 | coscld 16071 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((β€ β§ π₯
β β) β (cosβ(π₯ / 2)) β β) |
80 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ (π₯ β β β 2 β
β) |
81 | | 2ne0 12313 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’ 2 β
0 |
82 | 81 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ (π₯ β β β 2 β
0) |
83 | 52, 80, 82 | divrec2d 11991 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ (π₯ β β β (π₯ / 2) = ((1 / 2) Β· π₯)) |
84 | 83 | fveq2d 6893 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π₯ β β β
(sinβ(π₯ / 2)) =
(sinβ((1 / 2) Β· π₯))) |
85 | 84 | oveq2d 7422 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π₯ β β β (2
Β· (sinβ(π₯ /
2))) = (2 Β· (sinβ((1 / 2) Β· π₯)))) |
86 | 85 | mpteq2ia 5251 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π₯ β β β¦ (2
Β· (sinβ(π₯ /
2)))) = (π₯ β β
β¦ (2 Β· (sinβ((1 / 2) Β· π₯)))) |
87 | 86 | oveq2i 7417 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (β
D (π₯ β β β¦
(2 Β· (sinβ(π₯ /
2))))) = (β D (π₯
β β β¦ (2 Β· (sinβ((1 / 2) Β· π₯))))) |
88 | | resmpt 6036 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ (β
β β β ((π₯
β β β¦ (2 Β· (sinβ((1 / 2) Β· π₯)))) βΎ β) = (π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯))))) |
89 | 12, 88 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ ((π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯)))) βΎ β) = (π₯ β β β¦ (2 Β·
(sinβ((1 / 2) Β· π₯)))) |
90 | 89 | eqcomi 2742 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯)))) = ((π₯ β β β¦ (2 Β·
(sinβ((1 / 2) Β· π₯)))) βΎ β) |
91 | 90 | oveq2i 7417 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (β
D (π₯ β β β¦
(2 Β· (sinβ((1 / 2) Β· π₯))))) = (β D ((π₯ β β β¦ (2 Β·
(sinβ((1 / 2) Β· π₯)))) βΎ β)) |
92 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯)))) = (π₯ β β β¦ (2 Β·
(sinβ((1 / 2) Β· π₯)))) |
93 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ (π₯ β β β 2 β
β) |
94 | | halfcn 12424 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
β’ (1 / 2)
β β |
95 | 94 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’ (π₯ β β β (1 / 2)
β β) |
96 | | id 22 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’ (π₯ β β β π₯ β
β) |
97 | 95, 96 | mulcld 11231 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ (π₯ β β β ((1 / 2)
Β· π₯) β
β) |
98 | 97 | sincld 16070 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ (π₯ β β β
(sinβ((1 / 2) Β· π₯)) β β) |
99 | 93, 98 | mulcld 11231 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π₯ β β β (2
Β· (sinβ((1 / 2) Β· π₯))) β β) |
100 | 92, 99 | fmpti 7109 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯)))):ββΆβ |
101 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’ (π₯ β β β¦ ((2
Β· (1 / 2)) Β· (cosβ((1 / 2) Β· π₯)))) = (π₯ β β β¦ ((2 Β· (1 / 2))
Β· (cosβ((1 / 2) Β· π₯)))) |
102 | | 2cn 12284 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
β’ 2 β
β |
103 | 102, 94 | mulcli 11218 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
β’ (2
Β· (1 / 2)) β β |
104 | 103 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
β’ (π₯ β β β (2
Β· (1 / 2)) β β) |
105 | 97 | coscld 16071 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
β’ (π₯ β β β
(cosβ((1 / 2) Β· π₯)) β β) |
106 | 104, 105 | mulcld 11231 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
β’ (π₯ β β β ((2
Β· (1 / 2)) Β· (cosβ((1 / 2) Β· π₯))) β β) |
107 | 106 | adantl 483 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’
((β€ β§ π₯
β β) β ((2 Β· (1 / 2)) Β· (cosβ((1 / 2)
Β· π₯))) β
β) |
108 | 101, 107 | dmmptd 6693 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ (β€
β dom (π₯ β
β β¦ ((2 Β· (1 / 2)) Β· (cosβ((1 / 2) Β·
π₯)))) =
β) |
109 | 108 | mptru 1549 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ dom
(π₯ β β β¦
((2 Β· (1 / 2)) Β· (cosβ((1 / 2) Β· π₯)))) = β |
110 | 12, 109 | sseqtrri 4019 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ β
β dom (π₯ β
β β¦ ((2 Β· (1 / 2)) Β· (cosβ((1 / 2) Β·
π₯)))) |
111 | | dvasinbx 44623 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ ((2
β β β§ (1 / 2) β β) β (β D (π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯))))) = (π₯ β β β¦ ((2 Β· (1 / 2))
Β· (cosβ((1 / 2) Β· π₯))))) |
112 | 102, 94, 111 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ (β
D (π₯ β β β¦
(2 Β· (sinβ((1 / 2) Β· π₯))))) = (π₯ β β β¦ ((2 Β· (1 / 2))
Β· (cosβ((1 / 2) Β· π₯)))) |
113 | 112 | dmeqi 5903 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ dom
(β D (π₯ β
β β¦ (2 Β· (sinβ((1 / 2) Β· π₯))))) = dom (π₯ β β β¦ ((2 Β· (1 / 2))
Β· (cosβ((1 / 2) Β· π₯)))) |
114 | 110, 113 | sseqtrri 4019 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ β
β dom (β D (π₯
β β β¦ (2 Β· (sinβ((1 / 2) Β· π₯))))) |
115 | | dvcnre 44619 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (((π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯)))):ββΆβ β§ β
β dom (β D (π₯
β β β¦ (2 Β· (sinβ((1 / 2) Β· π₯)))))) β (β D ((π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯)))) βΎ β)) = ((β D (π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯))))) βΎ β)) |
116 | 100, 114,
115 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (β
D ((π₯ β β
β¦ (2 Β· (sinβ((1 / 2) Β· π₯)))) βΎ β)) = ((β D (π₯ β β β¦ (2
Β· (sinβ((1 / 2) Β· π₯))))) βΎ β) |
117 | 112 | reseq1i 5976 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ ((β
D (π₯ β β β¦
(2 Β· (sinβ((1 / 2) Β· π₯))))) βΎ β) = ((π₯ β β β¦ ((2 Β· (1 / 2))
Β· (cosβ((1 / 2) Β· π₯)))) βΎ β) |
118 | | resmpt 6036 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (β
β β β ((π₯
β β β¦ ((2 Β· (1 / 2)) Β· (cosβ((1 / 2)
Β· π₯)))) βΎ
β) = (π₯ β
β β¦ ((2 Β· (1 / 2)) Β· (cosβ((1 / 2) Β·
π₯))))) |
119 | 12, 118 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ ((π₯ β β β¦ ((2
Β· (1 / 2)) Β· (cosβ((1 / 2) Β· π₯)))) βΎ β) = (π₯ β β β¦ ((2 Β· (1 / 2))
Β· (cosβ((1 / 2) Β· π₯)))) |
120 | 102, 81 | recidi 11942 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’ (2
Β· (1 / 2)) = 1 |
121 | 120 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ (π₯ β β β (2
Β· (1 / 2)) = 1) |
122 | 83 | eqcomd 2739 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’ (π₯ β β β ((1 / 2)
Β· π₯) = (π₯ / 2)) |
123 | 122 | fveq2d 6893 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ (π₯ β β β
(cosβ((1 / 2) Β· π₯)) = (cosβ(π₯ / 2))) |
124 | 121, 123 | oveq12d 7424 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ (π₯ β β β ((2
Β· (1 / 2)) Β· (cosβ((1 / 2) Β· π₯))) = (1 Β· (cosβ(π₯ / 2)))) |
125 | 52 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
β’ (π₯ β β β (π₯ / 2) β
β) |
126 | 125 | coscld 16071 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
β’ (π₯ β β β
(cosβ(π₯ / 2)) β
β) |
127 | 126 | mullidd 11229 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
β’ (π₯ β β β (1
Β· (cosβ(π₯ /
2))) = (cosβ(π₯ /
2))) |
128 | 124, 127 | eqtrd 2773 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π₯ β β β ((2
Β· (1 / 2)) Β· (cosβ((1 / 2) Β· π₯))) = (cosβ(π₯ / 2))) |
129 | 128 | mpteq2ia 5251 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π₯ β β β¦ ((2
Β· (1 / 2)) Β· (cosβ((1 / 2) Β· π₯)))) = (π₯ β β β¦ (cosβ(π₯ / 2))) |
130 | 117, 119,
129 | 3eqtri 2765 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ ((β
D (π₯ β β β¦
(2 Β· (sinβ((1 / 2) Β· π₯))))) βΎ β) = (π₯ β β β¦ (cosβ(π₯ / 2))) |
131 | 91, 116, 130 | 3eqtri 2765 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (β
D (π₯ β β β¦
(2 Β· (sinβ((1 / 2) Β· π₯))))) = (π₯ β β β¦ (cosβ(π₯ / 2))) |
132 | 87, 131 | eqtri 2761 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (β
D (π₯ β β β¦
(2 Β· (sinβ(π₯ /
2))))) = (π₯ β β
β¦ (cosβ(π₯ /
2))) |
133 | 132 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (β D (π₯ β
β β¦ (2 Β· (sinβ(π₯ / 2))))) = (π₯ β β β¦ (cosβ(π₯ / 2)))) |
134 | 51, 78, 79, 133, 20, 57, 56, 64 | dvmptres 25472 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β (β D (π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(cosβ(π₯ /
2)))) |
135 | 134 | mptru 1549 |
. . . . . . . . . . . . . . . . . . . 20
β’ (β
D (π₯ β ((-Ο(,)Ο)
β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(cosβ(π₯ /
2))) |
136 | 135 | eqcomi 2742 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (cosβ(π₯
/ 2))) = (β D (π₯
β ((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))) |
137 | 136 | dmeqi 5903 |
. . . . . . . . . . . . . . . . . 18
β’ dom
(π₯ β ((-Ο(,)Ο)
β {0}) β¦ (cosβ(π₯ / 2))) = dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))) |
138 | 74, 137 | eqtr3i 2763 |
. . . . . . . . . . . . . . . . 17
β’
((-Ο(,)Ο) β {0}) = dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))) |
139 | 138 | eqimssi 4042 |
. . . . . . . . . . . . . . . 16
β’
((-Ο(,)Ο) β {0}) β dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))) |
140 | 139 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β ((-Ο(,)Ο) β {0}) β dom (β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2)))))) |
141 | 17 | recnd 11239 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β (-Ο(,)Ο) β
π β
β) |
142 | 141 | ssriv 3986 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
(-Ο(,)Ο) β β |
143 | 142 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (-Ο(,)Ο) β β) |
144 | | ssid 4004 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ β
β β |
145 | 144 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β β β β) |
146 | 143, 145 | idcncfg 44576 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β (π₯ β
(-Ο(,)Ο) β¦ π₯)
β ((-Ο(,)Ο)βcnββ)) |
147 | 146 | mptru 1549 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π₯ β (-Ο(,)Ο) β¦
π₯) β
((-Ο(,)Ο)βcnββ) |
148 | | cnlimc 25397 |
. . . . . . . . . . . . . . . . . . . . 21
β’
((-Ο(,)Ο) β β β ((π₯ β (-Ο(,)Ο) β¦ π₯) β
((-Ο(,)Ο)βcnββ)
β ((π₯ β
(-Ο(,)Ο) β¦ π₯):(-Ο(,)Ο)βΆβ β§
βπ¦ β
(-Ο(,)Ο)((π₯ β
(-Ο(,)Ο) β¦ π₯)βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ π¦)))) |
149 | 142, 148 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((π₯ β (-Ο(,)Ο) β¦
π₯) β
((-Ο(,)Ο)βcnββ)
β ((π₯ β
(-Ο(,)Ο) β¦ π₯):(-Ο(,)Ο)βΆβ β§
βπ¦ β
(-Ο(,)Ο)((π₯ β
(-Ο(,)Ο) β¦ π₯)βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ π¦))) |
150 | 147, 149 | mpbi 229 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π₯ β (-Ο(,)Ο) β¦
π₯):(-Ο(,)Ο)βΆβ β§
βπ¦ β
(-Ο(,)Ο)((π₯ β
(-Ο(,)Ο) β¦ π₯)βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ π¦)) |
151 | 150 | simpri 487 |
. . . . . . . . . . . . . . . . . 18
β’
βπ¦ β
(-Ο(,)Ο)((π₯ β
(-Ο(,)Ο) β¦ π₯)βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ π¦) |
152 | | fveq2 6889 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π¦ = 0 β ((π₯ β (-Ο(,)Ο) β¦ π₯)βπ¦) = ((π₯ β (-Ο(,)Ο) β¦ π₯)β0)) |
153 | | oveq2 7414 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π¦ = 0 β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ π¦) = ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ
0)) |
154 | 152, 153 | eleq12d 2828 |
. . . . . . . . . . . . . . . . . . 19
β’ (π¦ = 0 β (((π₯ β (-Ο(,)Ο) β¦
π₯)βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ π¦) β ((π₯ β (-Ο(,)Ο) β¦ π₯)β0) β ((π₯ β (-Ο(,)Ο) β¦
π₯) limβ
0))) |
155 | 154 | rspccva 3612 |
. . . . . . . . . . . . . . . . . 18
β’
((βπ¦ β
(-Ο(,)Ο)((π₯ β
(-Ο(,)Ο) β¦ π₯)βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ π¦) β§ 0 β (-Ο(,)Ο))
β ((π₯ β
(-Ο(,)Ο) β¦ π₯)β0) β ((π₯ β (-Ο(,)Ο) β¦ π₯) limβ
0)) |
156 | 151, 44, 155 | mp2an 691 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β (-Ο(,)Ο) β¦
π₯)β0) β ((π₯ β (-Ο(,)Ο) β¦
π₯) limβ
0) |
157 | | id 22 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ = 0 β π₯ = 0) |
158 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β (-Ο(,)Ο) β¦
π₯) = (π₯ β (-Ο(,)Ο) β¦ π₯) |
159 | | c0ex 11205 |
. . . . . . . . . . . . . . . . . . 19
β’ 0 β
V |
160 | 157, 158,
159 | fvmpt 6996 |
. . . . . . . . . . . . . . . . . 18
β’ (0 β
(-Ο(,)Ο) β ((π₯
β (-Ο(,)Ο) β¦ π₯)β0) = 0) |
161 | 44, 160 | ax-mp 5 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β (-Ο(,)Ο) β¦
π₯)β0) =
0 |
162 | | elioore 13351 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ β (-Ο(,)Ο) β
π₯ β
β) |
163 | 162 | recnd 11239 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π₯ β (-Ο(,)Ο) β
π₯ β
β) |
164 | 158, 163 | fmpti 7109 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π₯ β (-Ο(,)Ο) β¦
π₯):(-Ο(,)Ο)βΆβ |
165 | 164 | a1i 11 |
. . . . . . . . . . . . . . . . . . . 20
β’ (β€
β (π₯ β
(-Ο(,)Ο) β¦ π₯):(-Ο(,)Ο)βΆβ) |
166 | 165 | limcdif 25385 |
. . . . . . . . . . . . . . . . . . 19
β’ (β€
β ((π₯ β
(-Ο(,)Ο) β¦ π₯)
limβ 0) = (((π₯ β (-Ο(,)Ο) β¦ π₯) βΎ ((-Ο(,)Ο)
β {0})) limβ 0)) |
167 | 166 | mptru 1549 |
. . . . . . . . . . . . . . . . . 18
β’ ((π₯ β (-Ο(,)Ο) β¦
π₯) limβ 0)
= (((π₯ β
(-Ο(,)Ο) β¦ π₯)
βΎ ((-Ο(,)Ο) β {0})) limβ 0) |
168 | | resmpt 6036 |
. . . . . . . . . . . . . . . . . . . 20
β’
(((-Ο(,)Ο) β {0}) β (-Ο(,)Ο) β ((π₯ β (-Ο(,)Ο) β¦
π₯) βΎ ((-Ο(,)Ο)
β {0})) = (π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯)) |
169 | 16, 168 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π₯ β (-Ο(,)Ο) β¦
π₯) βΎ ((-Ο(,)Ο)
β {0})) = (π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯) |
170 | 169 | oveq1i 7416 |
. . . . . . . . . . . . . . . . . 18
β’ (((π₯ β (-Ο(,)Ο) β¦
π₯) βΎ ((-Ο(,)Ο)
β {0})) limβ 0) = ((π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯) limβ
0) |
171 | 167, 170 | eqtri 2761 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β (-Ο(,)Ο) β¦
π₯) limβ 0)
= ((π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯) limβ 0) |
172 | 156, 161,
171 | 3eltr3i 2846 |
. . . . . . . . . . . . . . . 16
β’ 0 β
((π₯ β ((-Ο(,)Ο)
β {0}) β¦ π₯)
limβ 0) |
173 | 172 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β 0 β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯) limβ 0)) |
174 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ β β β¦ 2) =
(π₯ β β β¦
2) |
175 | 144 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (2 β
β β β β β) |
176 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (2 β
β β 2 β β) |
177 | 175, 176,
175 | constcncfg 44575 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (2 β
β β (π₯ β
β β¦ 2) β (ββcnββ)) |
178 | 102, 177 | mp1i 13 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (β€
β (π₯ β β
β¦ 2) β (ββcnββ)) |
179 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((β€ β§ π₯
β (-Ο(,)Ο)) β 2 β β) |
180 | 174, 178,
143, 145, 179 | cncfmptssg 44574 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (π₯ β
(-Ο(,)Ο) β¦ 2) β ((-Ο(,)Ο)βcnββ)) |
181 | | sincn 25948 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ sin
β (ββcnββ) |
182 | 181 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (β€
β sin β (ββcnββ)) |
183 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π₯ β β β¦ (π₯ / 2)) = (π₯ β β β¦ (π₯ / 2)) |
184 | 183 | divccncf 24414 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ ((2
β β β§ 2 β 0) β (π₯ β β β¦ (π₯ / 2)) β (ββcnββ)) |
185 | 102, 81, 184 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π₯ β β β¦ (π₯ / 2)) β
(ββcnββ) |
186 | 185 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (β€
β (π₯ β β
β¦ (π₯ / 2)) β
(ββcnββ)) |
187 | 163 | adantl 483 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’
((β€ β§ π₯
β (-Ο(,)Ο)) β π₯ β β) |
188 | 187 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
((β€ β§ π₯
β (-Ο(,)Ο)) β (π₯ / 2) β β) |
189 | 183, 186,
143, 145, 188 | cncfmptssg 44574 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (β€
β (π₯ β
(-Ο(,)Ο) β¦ (π₯ /
2)) β ((-Ο(,)Ο)βcnββ)) |
190 | 182, 189 | cncfmpt1f 24422 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (π₯ β
(-Ο(,)Ο) β¦ (sinβ(π₯ / 2))) β ((-Ο(,)Ο)βcnββ)) |
191 | 180, 190 | mulcncf 24955 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β (π₯ β
(-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2)))) β ((-Ο(,)Ο)βcnββ)) |
192 | 191 | mptru 1549 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) β ((-Ο(,)Ο)βcnββ) |
193 | | cnlimc 25397 |
. . . . . . . . . . . . . . . . . . . . 21
β’
((-Ο(,)Ο) β β β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ / 2))))
β ((-Ο(,)Ο)βcnββ) β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2)))):(-Ο(,)Ο)βΆβ β§ βπ¦ β (-Ο(,)Ο)((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2))))βπ¦) β
((π₯ β (-Ο(,)Ο)
β¦ (2 Β· (sinβ(π₯ / 2)))) limβ π¦)))) |
194 | 142, 193 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) β ((-Ο(,)Ο)βcnββ) β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2)))):(-Ο(,)Ο)βΆβ β§ βπ¦ β (-Ο(,)Ο)((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2))))βπ¦) β
((π₯ β (-Ο(,)Ο)
β¦ (2 Β· (sinβ(π₯ / 2)))) limβ π¦))) |
195 | 192, 194 | mpbi 229 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))):(-Ο(,)Ο)βΆβ β§ βπ¦ β (-Ο(,)Ο)((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2))))βπ¦) β
((π₯ β (-Ο(,)Ο)
β¦ (2 Β· (sinβ(π₯ / 2)))) limβ π¦)) |
196 | 195 | simpri 487 |
. . . . . . . . . . . . . . . . . 18
β’
βπ¦ β
(-Ο(,)Ο)((π₯ β
(-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2))))βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ / 2))))
limβ π¦) |
197 | | fveq2 6889 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π¦ = 0 β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2))))βπ¦) = ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2))))β0)) |
198 | | oveq2 7414 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π¦ = 0 β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ / 2))))
limβ π¦) =
((π₯ β (-Ο(,)Ο)
β¦ (2 Β· (sinβ(π₯ / 2)))) limβ
0)) |
199 | 197, 198 | eleq12d 2828 |
. . . . . . . . . . . . . . . . . . 19
β’ (π¦ = 0 β (((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2))))βπ¦) β
((π₯ β (-Ο(,)Ο)
β¦ (2 Β· (sinβ(π₯ / 2)))) limβ π¦) β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2))))β0) β ((π₯
β (-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2)))) limβ
0))) |
200 | 199 | rspccva 3612 |
. . . . . . . . . . . . . . . . . 18
β’
((βπ¦ β
(-Ο(,)Ο)((π₯ β
(-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2))))βπ¦) β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ / 2))))
limβ π¦)
β§ 0 β (-Ο(,)Ο)) β ((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ /
2))))β0) β ((π₯
β (-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2)))) limβ
0)) |
201 | 196, 44, 200 | mp2an 691 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2))))β0) β ((π₯
β (-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2)))) limβ
0) |
202 | | oveq1 7413 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π₯ = 0 β (π₯ / 2) = (0 / 2)) |
203 | 102, 81 | div0i 11945 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (0 / 2) =
0 |
204 | 202, 203 | eqtrdi 2789 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ = 0 β (π₯ / 2) = 0) |
205 | 204 | fveq2d 6893 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π₯ = 0 β (sinβ(π₯ / 2)) =
(sinβ0)) |
206 | | sin0 16089 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
(sinβ0) = 0 |
207 | 205, 206 | eqtrdi 2789 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π₯ = 0 β (sinβ(π₯ / 2)) = 0) |
208 | 207 | oveq2d 7422 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π₯ = 0 β (2 Β·
(sinβ(π₯ / 2))) = (2
Β· 0)) |
209 | | 2t0e0 12378 |
. . . . . . . . . . . . . . . . . . . 20
β’ (2
Β· 0) = 0 |
210 | 208, 209 | eqtrdi 2789 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ = 0 β (2 Β·
(sinβ(π₯ / 2))) =
0) |
211 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) = (π₯ β
(-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2)))) |
212 | 210, 211,
159 | fvmpt 6996 |
. . . . . . . . . . . . . . . . . 18
β’ (0 β
(-Ο(,)Ο) β ((π₯
β (-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2))))β0) = 0) |
213 | 44, 212 | ax-mp 5 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2))))β0) = 0 |
214 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ β (-Ο(,)Ο) β 2
β β) |
215 | 163 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π₯ β (-Ο(,)Ο) β
(π₯ / 2) β
β) |
216 | 215 | sincld 16070 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ β (-Ο(,)Ο) β
(sinβ(π₯ / 2)) β
β) |
217 | 214, 216 | mulcld 11231 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π₯ β (-Ο(,)Ο) β (2
Β· (sinβ(π₯ /
2))) β β) |
218 | 211, 217 | fmpti 7109 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))):(-Ο(,)Ο)βΆβ |
219 | 218 | a1i 11 |
. . . . . . . . . . . . . . . . . . . 20
β’ (β€
β (π₯ β
(-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ /
2)))):(-Ο(,)Ο)βΆβ) |
220 | 219 | limcdif 25385 |
. . . . . . . . . . . . . . . . . . 19
β’ (β€
β ((π₯ β
(-Ο(,)Ο) β¦ (2 Β· (sinβ(π₯ / 2)))) limβ 0) = (((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) βΎ ((-Ο(,)Ο) β {0})) limβ
0)) |
221 | 220 | mptru 1549 |
. . . . . . . . . . . . . . . . . 18
β’ ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) limβ 0) = (((π₯ β (-Ο(,)Ο) β¦ (2 Β·
(sinβ(π₯ / 2))))
βΎ ((-Ο(,)Ο) β {0})) limβ 0) |
222 | | resmpt 6036 |
. . . . . . . . . . . . . . . . . . . 20
β’
(((-Ο(,)Ο) β {0}) β (-Ο(,)Ο) β ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) βΎ ((-Ο(,)Ο) β {0})) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))) |
223 | 16, 222 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) βΎ ((-Ο(,)Ο) β {0})) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2)))) |
224 | 223 | oveq1i 7416 |
. . . . . . . . . . . . . . . . . 18
β’ (((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) βΎ ((-Ο(,)Ο) β {0})) limβ 0) = ((π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))) limβ
0) |
225 | 221, 224 | eqtri 2761 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β (-Ο(,)Ο) β¦
(2 Β· (sinβ(π₯ /
2)))) limβ 0) = ((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2)))) limβ 0) |
226 | 201, 213,
225 | 3eltr3i 2846 |
. . . . . . . . . . . . . . . 16
β’ 0 β
((π₯ β ((-Ο(,)Ο)
β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) limβ
0) |
227 | 226 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β 0 β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) limβ
0)) |
228 | | eqidd 2734 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))) |
229 | | oveq1 7413 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π₯ = π¦ β (π₯ / 2) = (π¦ / 2)) |
230 | 229 | fveq2d 6893 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ = π¦ β (sinβ(π₯ / 2)) = (sinβ(π¦ / 2))) |
231 | 230 | oveq2d 7422 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π₯ = π¦ β (2 Β· (sinβ(π₯ / 2))) = (2 Β·
(sinβ(π¦ /
2)))) |
232 | 231 | adantl 483 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π¦ β ((-Ο(,)Ο) β
{0}) β§ π₯ = π¦) β (2 Β·
(sinβ(π₯ / 2))) = (2
Β· (sinβ(π¦ /
2)))) |
233 | | id 22 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β π¦ β
((-Ο(,)Ο) β {0})) |
234 | 26 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β 2 β β) |
235 | 19 | sseli 3978 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β π¦ β
β) |
236 | 235 | rehalfcld 12456 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (π¦ / 2) β
β) |
237 | 236 | resincld 16083 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (sinβ(π¦ /
2)) β β) |
238 | 234, 237 | remulcld 11241 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (2 Β· (sinβ(π¦ / 2))) β β) |
239 | 228, 232,
233, 238 | fvmptd 7003 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))βπ¦) = (2 Β· (sinβ(π¦ / 2)))) |
240 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β 2 β β) |
241 | 237 | recnd 11239 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (sinβ(π¦ /
2)) β β) |
242 | 81 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β 2 β 0) |
243 | | ioossicc 13407 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
(-Ο(,)Ο) β (-Ο[,]Ο) |
244 | | eldifi 4126 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β π¦ β
(-Ο(,)Ο)) |
245 | 243, 244 | sselid 3980 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β π¦ β
(-Ο[,]Ο)) |
246 | | eldifsni 4793 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β π¦ β
0) |
247 | | fourierdlem44 44854 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ ((π¦ β (-Ο[,]Ο) β§
π¦ β 0) β
(sinβ(π¦ / 2)) β
0) |
248 | 245, 246,
247 | syl2anc 585 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (sinβ(π¦ /
2)) β 0) |
249 | 240, 241,
242, 248 | mulne0d 11863 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (2 Β· (sinβ(π¦ / 2))) β 0) |
250 | 239, 249 | eqnetrd 3009 |
. . . . . . . . . . . . . . . . . . 19
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))βπ¦) β 0) |
251 | 250 | neneqd 2946 |
. . . . . . . . . . . . . . . . . 18
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β Β¬ ((π₯
β ((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))βπ¦) = 0) |
252 | 251 | nrex 3075 |
. . . . . . . . . . . . . . . . 17
β’ Β¬
βπ¦ β
((-Ο(,)Ο) β {0})((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ¦) =
0 |
253 | 25 | fnmpt 6688 |
. . . . . . . . . . . . . . . . . . 19
β’
(βπ₯ β
((-Ο(,)Ο) β {0})(2 Β· (sinβ(π₯ / 2))) β β β (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))) Fn ((-Ο(,)Ο) β
{0})) |
254 | 253, 30 | mprg 3068 |
. . . . . . . . . . . . . . . . . 18
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))) Fn ((-Ο(,)Ο) β
{0}) |
255 | | ssid 4004 |
. . . . . . . . . . . . . . . . . 18
β’
((-Ο(,)Ο) β {0}) β ((-Ο(,)Ο) β
{0}) |
256 | | fvelimab 6962 |
. . . . . . . . . . . . . . . . . 18
β’ (((π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))) Fn ((-Ο(,)Ο) β {0})
β§ ((-Ο(,)Ο) β {0}) β ((-Ο(,)Ο) β {0})) β
(0 β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) β ((-Ο(,)Ο) β
{0})) β βπ¦
β ((-Ο(,)Ο) β {0})((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ¦) =
0)) |
257 | 254, 255,
256 | mp2an 691 |
. . . . . . . . . . . . . . . . 17
β’ (0 β
((π₯ β ((-Ο(,)Ο)
β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) β ((-Ο(,)Ο) β
{0})) β βπ¦
β ((-Ο(,)Ο) β {0})((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ¦) =
0) |
258 | 252, 257 | mtbir 323 |
. . . . . . . . . . . . . . . 16
β’ Β¬ 0
β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) β ((-Ο(,)Ο) β
{0})) |
259 | 258 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β Β¬ 0 β ((π₯
β ((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) β ((-Ο(,)Ο)
β {0}))) |
260 | | eqidd 2734 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (π₯ β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2))) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(cosβ(π₯ /
2)))) |
261 | 229 | fveq2d 6893 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ = π¦ β (cosβ(π₯ / 2)) = (cosβ(π¦ / 2))) |
262 | 261 | adantl 483 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ ((π¦ β ((-Ο(,)Ο) β
{0}) β§ π₯ = π¦) β (cosβ(π₯ / 2)) = (cosβ(π¦ / 2))) |
263 | 235 | recnd 11239 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β π¦ β
β) |
264 | 263 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (π¦ / 2) β
β) |
265 | 264 | coscld 16071 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (cosβ(π¦ /
2)) β β) |
266 | 260, 262,
233, 265 | fvmptd 7003 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2)))βπ¦) = (cosβ(π¦ / 2))) |
267 | 236 | rered 15168 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (ββ(π¦ / 2)) = (π¦ / 2)) |
268 | | halfpire 25966 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (Ο /
2) β β |
269 | 268 | renegcli 11518 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ -(Ο /
2) β β |
270 | 269 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β -(Ο / 2) β β) |
271 | 270 | rexrd 11261 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β -(Ο / 2) β β*) |
272 | 268 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (Ο / 2) β β) |
273 | 272 | rexrd 11261 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (Ο / 2) β β*) |
274 | | picn 25961 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ Ο
β β |
275 | | divneg 11903 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ ((Ο
β β β§ 2 β β β§ 2 β 0) β -(Ο / 2) =
(-Ο / 2)) |
276 | 274, 102,
81, 275 | mp3an 1462 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ -(Ο /
2) = (-Ο / 2) |
277 | 39 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β -Ο β β) |
278 | | 2rp 12976 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ 2 β
β+ |
279 | 278 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β 2 β β+) |
280 | 40 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β -Ο β β*) |
281 | 41 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β Ο β β*) |
282 | | ioogtlb 44195 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ ((-Ο
β β* β§ Ο β β* β§ π¦ β (-Ο(,)Ο)) β
-Ο < π¦) |
283 | 280, 281,
244, 282 | syl3anc 1372 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β -Ο < π¦) |
284 | 277, 235,
279, 283 | ltdiv1dd 13070 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (-Ο / 2) < (π¦ / 2)) |
285 | 276, 284 | eqbrtrid 5183 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β -(Ο / 2) < (π¦ / 2)) |
286 | 38 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β Ο β β) |
287 | | iooltub 44210 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ ((-Ο
β β* β§ Ο β β* β§ π¦ β (-Ο(,)Ο)) β
π¦ <
Ο) |
288 | 280, 281,
244, 287 | syl3anc 1372 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β π¦ <
Ο) |
289 | 235, 286,
279, 288 | ltdiv1dd 13070 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (π¦ / 2) <
(Ο / 2)) |
290 | 271, 273,
236, 285, 289 | eliood 44198 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (π¦ / 2) β
(-(Ο / 2)(,)(Ο / 2))) |
291 | 267, 290 | eqeltrd 2834 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (ββ(π¦ / 2)) β (-(Ο / 2)(,)(Ο /
2))) |
292 | | cosne0 26030 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (((π¦ / 2) β β β§
(ββ(π¦ / 2))
β (-(Ο / 2)(,)(Ο / 2))) β (cosβ(π¦ / 2)) β 0) |
293 | 264, 291,
292 | syl2anc 585 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β (cosβ(π¦ /
2)) β 0) |
294 | 266, 293 | eqnetrd 3009 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2)))βπ¦) β 0) |
295 | 294 | neneqd 2946 |
. . . . . . . . . . . . . . . . . . 19
β’ (π¦ β ((-Ο(,)Ο) β
{0}) β Β¬ ((π₯
β ((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2)))βπ¦) = 0) |
296 | 295 | nrex 3075 |
. . . . . . . . . . . . . . . . . 18
β’ Β¬
βπ¦ β
((-Ο(,)Ο) β {0})((π₯ β ((-Ο(,)Ο) β {0}) β¦
(cosβ(π₯ /
2)))βπ¦) =
0 |
297 | 72, 73 | fnmpti 6691 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (cosβ(π₯
/ 2))) Fn ((-Ο(,)Ο) β {0}) |
298 | | fvelimab 6962 |
. . . . . . . . . . . . . . . . . . 19
β’ (((π₯ β ((-Ο(,)Ο) β
{0}) β¦ (cosβ(π₯
/ 2))) Fn ((-Ο(,)Ο) β {0}) β§ ((-Ο(,)Ο) β {0})
β ((-Ο(,)Ο) β {0})) β (0 β ((π₯ β ((-Ο(,)Ο) β {0}) β¦
(cosβ(π₯ / 2)))
β ((-Ο(,)Ο) β {0})) β βπ¦ β ((-Ο(,)Ο) β {0})((π₯ β ((-Ο(,)Ο) β
{0}) β¦ (cosβ(π₯
/ 2)))βπ¦) =
0)) |
299 | 297, 255,
298 | mp2an 691 |
. . . . . . . . . . . . . . . . . 18
β’ (0 β
((π₯ β ((-Ο(,)Ο)
β {0}) β¦ (cosβ(π₯ / 2))) β ((-Ο(,)Ο) β {0}))
β βπ¦ β
((-Ο(,)Ο) β {0})((π₯ β ((-Ο(,)Ο) β {0}) β¦
(cosβ(π₯ /
2)))βπ¦) =
0) |
300 | 296, 299 | mtbir 323 |
. . . . . . . . . . . . . . . . 17
β’ Β¬ 0
β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2))) β ((-Ο(,)Ο) β
{0})) |
301 | 135 | imaeq1i 6055 |
. . . . . . . . . . . . . . . . . 18
β’ ((β
D (π₯ β ((-Ο(,)Ο)
β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))) β ((-Ο(,)Ο) β
{0})) = ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2))) β ((-Ο(,)Ο) β
{0})) |
302 | 301 | eleq2i 2826 |
. . . . . . . . . . . . . . . . 17
β’ (0 β
((β D (π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))) β ((-Ο(,)Ο) β
{0})) β 0 β ((π₯
β ((-Ο(,)Ο) β {0}) β¦ (cosβ(π₯ / 2))) β ((-Ο(,)Ο) β
{0}))) |
303 | 300, 302 | mtbir 323 |
. . . . . . . . . . . . . . . 16
β’ Β¬ 0
β ((β D (π₯
β ((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))) β
((-Ο(,)Ο) β {0})) |
304 | 303 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β Β¬ 0 β ((β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))) β ((-Ο(,)Ο) β {0}))) |
305 | | eqid 2733 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο(,)Ο) β
{0}) β¦ (cosβ(π
/ 2))) = (π β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π / 2))) |
306 | | eqid 2733 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο(,)Ο) β
{0}) β¦ (1 / (cosβ(π / 2)))) = (π β ((-Ο(,)Ο) β {0}) β¦
(1 / (cosβ(π /
2)))) |
307 | 19 | sseli 3978 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π β ((-Ο(,)Ο) β
{0}) β π β
β) |
308 | 307 | recnd 11239 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο(,)Ο) β
{0}) β π β
β) |
309 | 308 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β ((-Ο(,)Ο) β
{0}) β (π / 2) β
β) |
310 | 309 | coscld 16071 |
. . . . . . . . . . . . . . . . . . 19
β’ (π β ((-Ο(,)Ο) β
{0}) β (cosβ(π /
2)) β β) |
311 | 307 | rehalfcld 12456 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο(,)Ο) β
{0}) β (π / 2) β
β) |
312 | 311 | rered 15168 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π β ((-Ο(,)Ο) β
{0}) β (ββ(π / 2)) = (π / 2)) |
313 | 269 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π β ((-Ο(,)Ο) β
{0}) β -(Ο / 2) β β) |
314 | 313 | rexrd 11261 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο(,)Ο) β
{0}) β -(Ο / 2) β β*) |
315 | 268 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π β ((-Ο(,)Ο) β
{0}) β (Ο / 2) β β) |
316 | 315 | rexrd 11261 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο(,)Ο) β
{0}) β (Ο / 2) β β*) |
317 | 38 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π β ((-Ο(,)Ο) β
{0}) β Ο β β) |
318 | 317 | renegcld 11638 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π β ((-Ο(,)Ο) β
{0}) β -Ο β β) |
319 | 278 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π β ((-Ο(,)Ο) β
{0}) β 2 β β+) |
320 | 40 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π β ((-Ο(,)Ο) β
{0}) β -Ο β β*) |
321 | 41 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π β ((-Ο(,)Ο) β
{0}) β Ο β β*) |
322 | | eldifi 4126 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (π β ((-Ο(,)Ο) β
{0}) β π β
(-Ο(,)Ο)) |
323 | | ioogtlb 44195 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ ((-Ο
β β* β§ Ο β β* β§ π β (-Ο(,)Ο)) β
-Ο < π ) |
324 | 320, 321,
322, 323 | syl3anc 1372 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (π β ((-Ο(,)Ο) β
{0}) β -Ο < π ) |
325 | 318, 307,
319, 324 | ltdiv1dd 13070 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π β ((-Ο(,)Ο) β
{0}) β (-Ο / 2) < (π / 2)) |
326 | 276, 325 | eqbrtrid 5183 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο(,)Ο) β
{0}) β -(Ο / 2) < (π / 2)) |
327 | | iooltub 44210 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ ((-Ο
β β* β§ Ο β β* β§ π β (-Ο(,)Ο)) β
π <
Ο) |
328 | 320, 321,
322, 327 | syl3anc 1372 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π β ((-Ο(,)Ο) β
{0}) β π <
Ο) |
329 | 307, 317,
319, 328 | ltdiv1dd 13070 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο(,)Ο) β
{0}) β (π / 2) <
(Ο / 2)) |
330 | 314, 316,
311, 326, 329 | eliood 44198 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π β ((-Ο(,)Ο) β
{0}) β (π / 2) β
(-(Ο / 2)(,)(Ο / 2))) |
331 | 312, 330 | eqeltrd 2834 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π β ((-Ο(,)Ο) β
{0}) β (ββ(π / 2)) β (-(Ο / 2)(,)(Ο /
2))) |
332 | | cosne0 26030 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (((π / 2) β β β§
(ββ(π / 2))
β (-(Ο / 2)(,)(Ο / 2))) β (cosβ(π / 2)) β 0) |
333 | 309, 331,
332 | syl2anc 585 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο(,)Ο) β
{0}) β (cosβ(π /
2)) β 0) |
334 | 333 | neneqd 2946 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β ((-Ο(,)Ο) β
{0}) β Β¬ (cosβ(π / 2)) = 0) |
335 | 311 | recoscld 16084 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο(,)Ο) β
{0}) β (cosβ(π /
2)) β β) |
336 | | elsng 4642 |
. . . . . . . . . . . . . . . . . . . . 21
β’
((cosβ(π / 2))
β β β ((cosβ(π / 2)) β {0} β (cosβ(π / 2)) = 0)) |
337 | 335, 336 | syl 17 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β ((-Ο(,)Ο) β
{0}) β ((cosβ(π
/ 2)) β {0} β (cosβ(π / 2)) = 0)) |
338 | 334, 337 | mtbird 325 |
. . . . . . . . . . . . . . . . . . 19
β’ (π β ((-Ο(,)Ο) β
{0}) β Β¬ (cosβ(π / 2)) β {0}) |
339 | 310, 338 | eldifd 3959 |
. . . . . . . . . . . . . . . . . 18
β’ (π β ((-Ο(,)Ο) β
{0}) β (cosβ(π /
2)) β (β β {0})) |
340 | 339 | adantl 483 |
. . . . . . . . . . . . . . . . 17
β’
((β€ β§ π
β ((-Ο(,)Ο) β {0})) β (cosβ(π / 2)) β (β β
{0})) |
341 | 309 | ad2antrl 727 |
. . . . . . . . . . . . . . . . . 18
β’
((β€ β§ (π
β ((-Ο(,)Ο) β {0}) β§ (π / 2) β 0)) β (π / 2) β β) |
342 | | cosf 16065 |
. . . . . . . . . . . . . . . . . . . 20
β’
cos:ββΆβ |
343 | 342 | a1i 11 |
. . . . . . . . . . . . . . . . . . 19
β’ (β€
β cos:ββΆβ) |
344 | 343 | ffvelcdmda 7084 |
. . . . . . . . . . . . . . . . . 18
β’
((β€ β§ π₯
β β) β (cosβπ₯) β β) |
345 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β β β¦ (π / 2)) = (π β β β¦ (π / 2)) |
346 | 345 | divccncf 24414 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ ((2
β β β§ 2 β 0) β (π β β β¦ (π / 2)) β (ββcnββ)) |
347 | 102, 81, 346 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π β β β¦ (π / 2)) β
(ββcnββ) |
348 | 347 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β (π β β
β¦ (π / 2)) β
(ββcnββ)) |
349 | 141 | adantl 483 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((β€ β§ π
β (-Ο(,)Ο)) β π β β) |
350 | 349 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . 21
β’
((β€ β§ π
β (-Ο(,)Ο)) β (π / 2) β β) |
351 | 345, 348,
143, 145, 350 | cncfmptssg 44574 |
. . . . . . . . . . . . . . . . . . . 20
β’ (β€
β (π β
(-Ο(,)Ο) β¦ (π /
2)) β ((-Ο(,)Ο)βcnββ)) |
352 | | oveq1 7413 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π = 0 β (π / 2) = (0 / 2)) |
353 | 352, 203 | eqtrdi 2789 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π = 0 β (π / 2) = 0) |
354 | 351, 45, 353 | cnmptlimc 25399 |
. . . . . . . . . . . . . . . . . . 19
β’ (β€
β 0 β ((π β
(-Ο(,)Ο) β¦ (π /
2)) limβ 0)) |
355 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β (-Ο(,)Ο) β¦
(π / 2)) = (π β (-Ο(,)Ο) β¦
(π / 2)) |
356 | 141 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β (-Ο(,)Ο) β
(π / 2) β
β) |
357 | 355, 356 | fmpti 7109 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π β (-Ο(,)Ο) β¦
(π /
2)):(-Ο(,)Ο)βΆβ |
358 | 357 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (π β
(-Ο(,)Ο) β¦ (π /
2)):(-Ο(,)Ο)βΆβ) |
359 | 358 | limcdif 25385 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β ((π β
(-Ο(,)Ο) β¦ (π /
2)) limβ 0) = (((π β (-Ο(,)Ο) β¦ (π / 2)) βΎ ((-Ο(,)Ο)
β {0})) limβ 0)) |
360 | 359 | mptru 1549 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((π β (-Ο(,)Ο) β¦
(π / 2))
limβ 0) = (((π β (-Ο(,)Ο) β¦ (π / 2)) βΎ ((-Ο(,)Ο)
β {0})) limβ 0) |
361 | | resmpt 6036 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
(((-Ο(,)Ο) β {0}) β (-Ο(,)Ο) β ((π β (-Ο(,)Ο) β¦
(π / 2)) βΎ
((-Ο(,)Ο) β {0})) = (π β ((-Ο(,)Ο) β {0}) β¦
(π / 2))) |
362 | 16, 361 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π β (-Ο(,)Ο) β¦
(π / 2)) βΎ
((-Ο(,)Ο) β {0})) = (π β ((-Ο(,)Ο) β {0}) β¦
(π / 2)) |
363 | 362 | oveq1i 7416 |
. . . . . . . . . . . . . . . . . . . 20
β’ (((π β (-Ο(,)Ο) β¦
(π / 2)) βΎ
((-Ο(,)Ο) β {0})) limβ 0) = ((π β ((-Ο(,)Ο) β {0}) β¦
(π / 2))
limβ 0) |
364 | 360, 363 | eqtri 2761 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β (-Ο(,)Ο) β¦
(π / 2))
limβ 0) = ((π β ((-Ο(,)Ο) β {0}) β¦
(π / 2))
limβ 0) |
365 | 354, 364 | eleqtrdi 2844 |
. . . . . . . . . . . . . . . . . 18
β’ (β€
β 0 β ((π β
((-Ο(,)Ο) β {0}) β¦ (π / 2)) limβ
0)) |
366 | | ffn 6715 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
(cos:ββΆβ β cos Fn β) |
367 | 342, 366 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ cos Fn
β |
368 | | dffn5 6948 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (cos Fn
β β cos = (π₯
β β β¦ (cosβπ₯))) |
369 | 367, 368 | mpbi 229 |
. . . . . . . . . . . . . . . . . . . . 21
β’ cos =
(π₯ β β β¦
(cosβπ₯)) |
370 | | coscn 25949 |
. . . . . . . . . . . . . . . . . . . . 21
β’ cos
β (ββcnββ) |
371 | 369, 370 | eqeltrri 2831 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π₯ β β β¦
(cosβπ₯)) β
(ββcnββ) |
372 | 371 | a1i 11 |
. . . . . . . . . . . . . . . . . . 19
β’ (β€
β (π₯ β β
β¦ (cosβπ₯))
β (ββcnββ)) |
373 | | 0cnd 11204 |
. . . . . . . . . . . . . . . . . . 19
β’ (β€
β 0 β β) |
374 | | fveq2 6889 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π₯ = 0 β (cosβπ₯) =
(cosβ0)) |
375 | | cos0 16090 |
. . . . . . . . . . . . . . . . . . . 20
β’
(cosβ0) = 1 |
376 | 374, 375 | eqtrdi 2789 |
. . . . . . . . . . . . . . . . . . 19
β’ (π₯ = 0 β (cosβπ₯) = 1) |
377 | 372, 373,
376 | cnmptlimc 25399 |
. . . . . . . . . . . . . . . . . 18
β’ (β€
β 1 β ((π₯ β
β β¦ (cosβπ₯)) limβ 0)) |
378 | | fveq2 6889 |
. . . . . . . . . . . . . . . . . 18
β’ (π₯ = (π / 2) β (cosβπ₯) = (cosβ(π / 2))) |
379 | | fveq2 6889 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((π / 2) = 0 β
(cosβ(π / 2)) =
(cosβ0)) |
380 | 379, 375 | eqtrdi 2789 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π / 2) = 0 β
(cosβ(π / 2)) =
1) |
381 | 380 | ad2antll 728 |
. . . . . . . . . . . . . . . . . 18
β’
((β€ β§ (π
β ((-Ο(,)Ο) β {0}) β§ (π / 2) = 0)) β (cosβ(π / 2)) = 1) |
382 | 341, 344,
365, 377, 378, 381 | limcco 25402 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β 1 β ((π β
((-Ο(,)Ο) β {0}) β¦ (cosβ(π / 2))) limβ
0)) |
383 | | ax-1ne0 11176 |
. . . . . . . . . . . . . . . . . 18
β’ 1 β
0 |
384 | 383 | a1i 11 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β 1 β 0) |
385 | 305, 306,
340, 382, 384 | reclimc 44356 |
. . . . . . . . . . . . . . . 16
β’ (β€
β (1 / 1) β ((π
β ((-Ο(,)Ο) β {0}) β¦ (1 / (cosβ(π / 2)))) limβ
0)) |
386 | | 1div1e1 11901 |
. . . . . . . . . . . . . . . 16
β’ (1 / 1) =
1 |
387 | 66 | fveq1i 6890 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((β
D (π₯ β ((-Ο(,)Ο)
β {0}) β¦ π₯))βπ ) = ((π₯ β ((-Ο(,)Ο) β {0}) β¦
1)βπ ) |
388 | | eqidd 2734 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο(,)Ο) β
{0}) β (π₯ β
((-Ο(,)Ο) β {0}) β¦ 1) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
1)) |
389 | | eqidd 2734 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π β ((-Ο(,)Ο) β
{0}) β§ π₯ = π ) β 1 = 1) |
390 | | id 22 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο(,)Ο) β
{0}) β π β
((-Ο(,)Ο) β {0})) |
391 | | 1red 11212 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο(,)Ο) β
{0}) β 1 β β) |
392 | 388, 389,
390, 391 | fvmptd 7003 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β ((-Ο(,)Ο) β
{0}) β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ 1)βπ ) = 1) |
393 | 387, 392 | eqtr2id 2786 |
. . . . . . . . . . . . . . . . . . 19
β’ (π β ((-Ο(,)Ο) β
{0}) β 1 = ((β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯))βπ )) |
394 | 135 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο(,)Ο) β
{0}) β (β D (π₯
β ((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(cosβ(π₯ /
2)))) |
395 | | oveq1 7413 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π₯ = π β (π₯ / 2) = (π / 2)) |
396 | 395 | fveq2d 6893 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π₯ = π β (cosβ(π₯ / 2)) = (cosβ(π / 2))) |
397 | 396 | adantl 483 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π β ((-Ο(,)Ο) β
{0}) β§ π₯ = π ) β (cosβ(π₯ / 2)) = (cosβ(π / 2))) |
398 | 394, 397,
390, 335 | fvmptd 7003 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β ((-Ο(,)Ο) β
{0}) β ((β D (π₯
β ((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))))βπ ) = (cosβ(π / 2))) |
399 | 398 | eqcomd 2739 |
. . . . . . . . . . . . . . . . . . 19
β’ (π β ((-Ο(,)Ο) β
{0}) β (cosβ(π /
2)) = ((β D (π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))))βπ )) |
400 | 393, 399 | oveq12d 7424 |
. . . . . . . . . . . . . . . . . 18
β’ (π β ((-Ο(,)Ο) β
{0}) β (1 / (cosβ(π / 2))) = (((β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯))βπ ) / ((β D (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))))βπ ))) |
401 | 400 | mpteq2ia 5251 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο(,)Ο) β
{0}) β¦ (1 / (cosβ(π / 2)))) = (π β ((-Ο(,)Ο) β {0}) β¦
(((β D (π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯))βπ ) / ((β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2)))))βπ ))) |
402 | 401 | oveq1i 7416 |
. . . . . . . . . . . . . . . 16
β’ ((π β ((-Ο(,)Ο) β
{0}) β¦ (1 / (cosβ(π / 2)))) limβ 0) = ((π β ((-Ο(,)Ο) β
{0}) β¦ (((β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯))βπ ) / ((β D (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))))βπ ))) limβ 0) |
403 | 385, 386,
402 | 3eltr3g 2850 |
. . . . . . . . . . . . . . 15
β’ (β€
β 1 β ((π β
((-Ο(,)Ο) β {0}) β¦ (((β D (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯))βπ ) / ((β D (π₯ β ((-Ο(,)Ο) β
{0}) β¦ (2 Β· (sinβ(π₯ / 2)))))βπ ))) limβ
0)) |
404 | 20, 24, 32, 34, 45, 46, 71, 140, 173, 227, 259, 304, 403 | lhop 25525 |
. . . . . . . . . . . . . 14
β’ (β€
β 1 β ((π β
((-Ο(,)Ο) β {0}) β¦ (((π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯)βπ ) / ((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ )))
limβ 0)) |
405 | 404 | mptru 1549 |
. . . . . . . . . . . . 13
β’ 1 β
((π β ((-Ο(,)Ο)
β {0}) β¦ (((π₯
β ((-Ο(,)Ο) β {0}) β¦ π₯)βπ ) / ((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ )))
limβ 0) |
406 | | eqidd 2734 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο(,)Ο) β
{0}) β (π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
π₯)) |
407 | | simpr 486 |
. . . . . . . . . . . . . . . . 17
β’ ((π β ((-Ο(,)Ο) β
{0}) β§ π₯ = π ) β π₯ = π ) |
408 | 406, 407,
390, 307 | fvmptd 7003 |
. . . . . . . . . . . . . . . 16
β’ (π β ((-Ο(,)Ο) β
{0}) β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯)βπ ) = π ) |
409 | | eqidd 2734 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο(,)Ο) β
{0}) β (π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2)))) = (π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))) |
410 | 407 | oveq1d 7421 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β ((-Ο(,)Ο) β
{0}) β§ π₯ = π ) β (π₯ / 2) = (π / 2)) |
411 | 410 | fveq2d 6893 |
. . . . . . . . . . . . . . . . . 18
β’ ((π β ((-Ο(,)Ο) β
{0}) β§ π₯ = π ) β (sinβ(π₯ / 2)) = (sinβ(π / 2))) |
412 | 411 | oveq2d 7422 |
. . . . . . . . . . . . . . . . 17
β’ ((π β ((-Ο(,)Ο) β
{0}) β§ π₯ = π ) β (2 Β·
(sinβ(π₯ / 2))) = (2
Β· (sinβ(π /
2)))) |
413 | 26 | a1i 11 |
. . . . . . . . . . . . . . . . . 18
β’ (π β ((-Ο(,)Ο) β
{0}) β 2 β β) |
414 | 311 | resincld 16083 |
. . . . . . . . . . . . . . . . . 18
β’ (π β ((-Ο(,)Ο) β
{0}) β (sinβ(π /
2)) β β) |
415 | 413, 414 | remulcld 11241 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο(,)Ο) β
{0}) β (2 Β· (sinβ(π / 2))) β β) |
416 | 409, 412,
390, 415 | fvmptd 7003 |
. . . . . . . . . . . . . . . 16
β’ (π β ((-Ο(,)Ο) β
{0}) β ((π₯ β
((-Ο(,)Ο) β {0}) β¦ (2 Β· (sinβ(π₯ / 2))))βπ ) = (2 Β· (sinβ(π / 2)))) |
417 | 408, 416 | oveq12d 7424 |
. . . . . . . . . . . . . . 15
β’ (π β ((-Ο(,)Ο) β
{0}) β (((π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯)βπ ) / ((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ )) = (π / (2 Β· (sinβ(π / 2))))) |
418 | 417 | mpteq2ia 5251 |
. . . . . . . . . . . . . 14
β’ (π β ((-Ο(,)Ο) β
{0}) β¦ (((π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯)βπ ) / ((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ ))) = (π β ((-Ο(,)Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))) |
419 | 418 | oveq1i 7416 |
. . . . . . . . . . . . 13
β’ ((π β ((-Ο(,)Ο) β
{0}) β¦ (((π₯ β
((-Ο(,)Ο) β {0}) β¦ π₯)βπ ) / ((π₯ β ((-Ο(,)Ο) β {0}) β¦
(2 Β· (sinβ(π₯ /
2))))βπ )))
limβ 0) = ((π β ((-Ο(,)Ο) β {0}) β¦
(π / (2 Β·
(sinβ(π / 2)))))
limβ 0) |
420 | 405, 419 | eleqtri 2832 |
. . . . . . . . . . . 12
β’ 1 β
((π β ((-Ο(,)Ο)
β {0}) β¦ (π /
(2 Β· (sinβ(π /
2))))) limβ 0) |
421 | 10 | oveq1i 7416 |
. . . . . . . . . . . . . 14
β’ (πΎ limβ 0) =
((π β (-Ο[,]Ο)
β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) limβ
0) |
422 | 10 | feq1i 6706 |
. . . . . . . . . . . . . . . . . . 19
β’ (πΎ:(-Ο[,]Ο)βΆβ
β (π β
(-Ο[,]Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π /
2)))))):(-Ο[,]Ο)βΆβ) |
423 | 14, 422 | mpbi 229 |
. . . . . . . . . . . . . . . . . 18
β’ (π β (-Ο[,]Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π /
2)))))):(-Ο[,]Ο)βΆβ |
424 | 423 | a1i 11 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β (π β
(-Ο[,]Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π /
2)))))):(-Ο[,]Ο)βΆβ) |
425 | 243 | a1i 11 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β (-Ο(,)Ο) β (-Ο[,]Ο)) |
426 | | iccssre 13403 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((-Ο
β β β§ Ο β β) β (-Ο[,]Ο) β
β) |
427 | 39, 38, 426 | mp2an 691 |
. . . . . . . . . . . . . . . . . . 19
β’
(-Ο[,]Ο) β β |
428 | 427 | a1i 11 |
. . . . . . . . . . . . . . . . . 18
β’ (β€
β (-Ο[,]Ο) β β) |
429 | 428, 12 | sstrdi 3994 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β (-Ο[,]Ο) β β) |
430 | | eqid 2733 |
. . . . . . . . . . . . . . . . 17
β’
((TopOpenββfld) βΎt
((-Ο[,]Ο) βͺ {0})) = ((TopOpenββfld)
βΎt ((-Ο[,]Ο) βͺ {0})) |
431 | 39, 35, 36 | ltleii 11334 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ -Ο
β€ 0 |
432 | 35, 38, 37 | ltleii 11334 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ 0 β€
Ο |
433 | 39, 38 | elicc2i 13387 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ (0 β
(-Ο[,]Ο) β (0 β β β§ -Ο β€ 0 β§ 0 β€
Ο)) |
434 | 35, 431, 432, 433 | mpbir3an 1342 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ 0 β
(-Ο[,]Ο) |
435 | 159 | snss 4789 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ (0 β
(-Ο[,]Ο) β {0} β (-Ο[,]Ο)) |
436 | 434, 435 | mpbi 229 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ {0}
β (-Ο[,]Ο) |
437 | | ssequn2 4183 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ ({0}
β (-Ο[,]Ο) β ((-Ο[,]Ο) βͺ {0}) =
(-Ο[,]Ο)) |
438 | 436, 437 | mpbi 229 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
((-Ο[,]Ο) βͺ {0}) = (-Ο[,]Ο) |
439 | 438 | oveq2i 7417 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((TopOpenββfld) βΎt
((-Ο[,]Ο) βͺ {0})) = ((TopOpenββfld)
βΎt (-Ο[,]Ο)) |
440 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’
(topGenβran (,)) = (topGenβran (,)) |
441 | 56, 440 | rerest 24312 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
((-Ο[,]Ο) β β β
((TopOpenββfld) βΎt (-Ο[,]Ο)) =
((topGenβran (,)) βΎt (-Ο[,]Ο))) |
442 | 427, 441 | ax-mp 5 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((TopOpenββfld) βΎt
(-Ο[,]Ο)) = ((topGenβran (,)) βΎt
(-Ο[,]Ο)) |
443 | 439, 442 | eqtri 2761 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((TopOpenββfld) βΎt
((-Ο[,]Ο) βͺ {0})) = ((topGenβran (,)) βΎt
(-Ο[,]Ο)) |
444 | 443 | fveq2i 6892 |
. . . . . . . . . . . . . . . . . . . . 21
β’
(intβ((TopOpenββfld) βΎt
((-Ο[,]Ο) βͺ {0}))) = (intβ((topGenβran (,))
βΎt (-Ο[,]Ο))) |
445 | 159 | snss 4789 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (0 β
(-Ο(,)Ο) β {0} β (-Ο(,)Ο)) |
446 | 44, 445 | mpbi 229 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ {0}
β (-Ο(,)Ο) |
447 | | ssequn2 4183 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ ({0}
β (-Ο(,)Ο) β ((-Ο(,)Ο) βͺ {0}) =
(-Ο(,)Ο)) |
448 | 446, 447 | mpbi 229 |
. . . . . . . . . . . . . . . . . . . . 21
β’
((-Ο(,)Ο) βͺ {0}) = (-Ο(,)Ο) |
449 | 444, 448 | fveq12i 6895 |
. . . . . . . . . . . . . . . . . . . 20
β’
((intβ((TopOpenββfld) βΎt
((-Ο[,]Ο) βͺ {0})))β((-Ο(,)Ο) βͺ {0})) =
((intβ((topGenβran (,)) βΎt
(-Ο[,]Ο)))β(-Ο(,)Ο)) |
450 | | resttopon 22657 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
(((topGenβran (,)) β (TopOnββ) β§
(-Ο[,]Ο) β β) β ((topGenβran (,))
βΎt (-Ο[,]Ο)) β
(TopOnβ(-Ο[,]Ο))) |
451 | 60, 427, 450 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((topGenβran (,)) βΎt (-Ο[,]Ο)) β
(TopOnβ(-Ο[,]Ο)) |
452 | 451 | topontopi 22409 |
. . . . . . . . . . . . . . . . . . . . 21
β’
((topGenβran (,)) βΎt (-Ο[,]Ο)) β
Top |
453 | | retop 24270 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
(topGenβran (,)) β Top |
454 | | ovex 7439 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
(-Ο[,]Ο) β V |
455 | 453, 454 | pm3.2i 472 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((topGenβran (,)) β Top β§ (-Ο[,]Ο) β
V) |
456 | | ssid 4004 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’
(-Ο(,)Ο) β (-Ο(,)Ο) |
457 | 33, 243, 456 | 3pm3.2i 1340 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((-Ο(,)Ο) β (topGenβran (,)) β§ (-Ο(,)Ο)
β (-Ο[,]Ο) β§ (-Ο(,)Ο) β
(-Ο(,)Ο)) |
458 | | restopnb 22671 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’
((((topGenβran (,)) β Top β§ (-Ο[,]Ο) β V)
β§ ((-Ο(,)Ο) β (topGenβran (,)) β§ (-Ο(,)Ο)
β (-Ο[,]Ο) β§ (-Ο(,)Ο) β (-Ο(,)Ο))) β
((-Ο(,)Ο) β (topGenβran (,)) β (-Ο(,)Ο) β
((topGenβran (,)) βΎt (-Ο[,]Ο)))) |
459 | 455, 457,
458 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((-Ο(,)Ο) β (topGenβran (,)) β (-Ο(,)Ο)
β ((topGenβran (,)) βΎt
(-Ο[,]Ο))) |
460 | 33, 459 | mpbi 229 |
. . . . . . . . . . . . . . . . . . . . 21
β’
(-Ο(,)Ο) β ((topGenβran (,)) βΎt
(-Ο[,]Ο)) |
461 | | isopn3i 22578 |
. . . . . . . . . . . . . . . . . . . . 21
β’
((((topGenβran (,)) βΎt (-Ο[,]Ο)) β Top
β§ (-Ο(,)Ο) β ((topGenβran (,)) βΎt
(-Ο[,]Ο))) β ((intβ((topGenβran (,)) βΎt
(-Ο[,]Ο)))β(-Ο(,)Ο)) = (-Ο(,)Ο)) |
462 | 452, 460,
461 | mp2an 691 |
. . . . . . . . . . . . . . . . . . . 20
β’
((intβ((topGenβran (,)) βΎt
(-Ο[,]Ο)))β(-Ο(,)Ο)) = (-Ο(,)Ο) |
463 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . 20
β’
(-Ο(,)Ο) = (-Ο(,)Ο) |
464 | 449, 462,
463 | 3eqtrri 2766 |
. . . . . . . . . . . . . . . . . . 19
β’
(-Ο(,)Ο) = ((intβ((TopOpenββfld)
βΎt ((-Ο[,]Ο) βͺ {0})))β((-Ο(,)Ο) βͺ
{0})) |
465 | 44, 464 | eleqtri 2832 |
. . . . . . . . . . . . . . . . . 18
β’ 0 β
((intβ((TopOpenββfld) βΎt
((-Ο[,]Ο) βͺ {0})))β((-Ο(,)Ο) βͺ {0})) |
466 | 465 | a1i 11 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β 0 β ((intβ((TopOpenββfld)
βΎt ((-Ο[,]Ο) βͺ {0})))β((-Ο(,)Ο) βͺ
{0}))) |
467 | 424, 425,
429, 56, 430, 466 | limcres 25395 |
. . . . . . . . . . . . . . . 16
β’ (β€
β (((π β
(-Ο[,]Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π / 2))))))
βΎ (-Ο(,)Ο)) limβ 0) = ((π β (-Ο[,]Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) limβ
0)) |
468 | 467 | mptru 1549 |
. . . . . . . . . . . . . . 15
β’ (((π β (-Ο[,]Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
(-Ο(,)Ο)) limβ 0) = ((π β (-Ο[,]Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) limβ
0) |
469 | 468 | eqcomi 2742 |
. . . . . . . . . . . . . 14
β’ ((π β (-Ο[,]Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) limβ
0) = (((π β
(-Ο[,]Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π / 2))))))
βΎ (-Ο(,)Ο)) limβ 0) |
470 | | resmpt 6036 |
. . . . . . . . . . . . . . . 16
β’
((-Ο(,)Ο) β (-Ο[,]Ο) β ((π β (-Ο[,]Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ (-Ο(,)Ο)) = (π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))))) |
471 | 243, 470 | ax-mp 5 |
. . . . . . . . . . . . . . 15
β’ ((π β (-Ο[,]Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
(-Ο(,)Ο)) = (π β
(-Ο(,)Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π /
2)))))) |
472 | 471 | oveq1i 7416 |
. . . . . . . . . . . . . 14
β’ (((π β (-Ο[,]Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
(-Ο(,)Ο)) limβ 0) = ((π β (-Ο(,)Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) limβ
0) |
473 | 421, 469,
472 | 3eqtri 2765 |
. . . . . . . . . . . . 13
β’ (πΎ limβ 0) =
((π β (-Ο(,)Ο)
β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) limβ
0) |
474 | | eqid 2733 |
. . . . . . . . . . . . . . . . 17
β’ (π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) = (π β (-Ο(,)Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) |
475 | | iftrue 4534 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π = 0 β if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))) = 1) |
476 | | 1cnd 11206 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π = 0 β 1 β
β) |
477 | 475, 476 | eqeltrd 2834 |
. . . . . . . . . . . . . . . . . . 19
β’ (π = 0 β if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))) β β) |
478 | 477 | adantl 483 |
. . . . . . . . . . . . . . . . . 18
β’ ((π β (-Ο(,)Ο) β§
π = 0) β if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))) β β) |
479 | | iffalse 4537 |
. . . . . . . . . . . . . . . . . . . 20
β’ (Β¬
π = 0 β if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))) = (π / (2 Β· (sinβ(π / 2))))) |
480 | 479 | adantl 483 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))) = (π / (2 Β· (sinβ(π / 2))))) |
481 | 141 | adantr 482 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β π β
β) |
482 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β 2
β β) |
483 | 481 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β (π / 2) β
β) |
484 | 483 | sincld 16070 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β
(sinβ(π / 2)) β
β) |
485 | 482, 484 | mulcld 11231 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β (2
Β· (sinβ(π /
2))) β β) |
486 | 81 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β 2 β
0) |
487 | 243 | sseli 3978 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π β (-Ο(,)Ο) β
π β
(-Ο[,]Ο)) |
488 | | neqne 2949 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (Β¬
π = 0 β π β 0) |
489 | | fourierdlem44 44854 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ ((π β (-Ο[,]Ο) β§
π β 0) β
(sinβ(π / 2)) β
0) |
490 | 487, 488,
489 | syl2an 597 |
. . . . . . . . . . . . . . . . . . . . 21
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β
(sinβ(π / 2)) β
0) |
491 | 482, 484,
486, 490 | mulne0d 11863 |
. . . . . . . . . . . . . . . . . . . 20
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β (2
Β· (sinβ(π /
2))) β 0) |
492 | 481, 485,
491 | divcld 11987 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β (π / (2 Β· (sinβ(π / 2)))) β
β) |
493 | 480, 492 | eqeltrd 2834 |
. . . . . . . . . . . . . . . . . 18
β’ ((π β (-Ο(,)Ο) β§
Β¬ π = 0) β
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))) β
β) |
494 | 478, 493 | pm2.61dan 812 |
. . . . . . . . . . . . . . . . 17
β’ (π β (-Ο(,)Ο) β
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))) β
β) |
495 | 474, 494 | fmpti 7109 |
. . . . . . . . . . . . . . . 16
β’ (π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π /
2)))))):(-Ο(,)Ο)βΆβ |
496 | 495 | a1i 11 |
. . . . . . . . . . . . . . 15
β’ (β€
β (π β
(-Ο(,)Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π /
2)))))):(-Ο(,)Ο)βΆβ) |
497 | 496 | limcdif 25385 |
. . . . . . . . . . . . . 14
β’ (β€
β ((π β
(-Ο(,)Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π / 2))))))
limβ 0) = (((π β (-Ο(,)Ο) β¦ if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ ((-Ο(,)Ο) β
{0})) limβ 0)) |
498 | 497 | mptru 1549 |
. . . . . . . . . . . . 13
β’ ((π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) limβ
0) = (((π β
(-Ο(,)Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π / 2))))))
βΎ ((-Ο(,)Ο) β {0})) limβ 0) |
499 | | resmpt 6036 |
. . . . . . . . . . . . . . . 16
β’
(((-Ο(,)Ο) β {0}) β (-Ο(,)Ο) β ((π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
((-Ο(,)Ο) β {0})) = (π β ((-Ο(,)Ο) β {0}) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))))) |
500 | 16, 499 | ax-mp 5 |
. . . . . . . . . . . . . . 15
β’ ((π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
((-Ο(,)Ο) β {0})) = (π β ((-Ο(,)Ο) β {0}) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) |
501 | | eldifn 4127 |
. . . . . . . . . . . . . . . . . 18
β’ (π β ((-Ο(,)Ο) β
{0}) β Β¬ π β
{0}) |
502 | | velsn 4644 |
. . . . . . . . . . . . . . . . . 18
β’ (π β {0} β π = 0) |
503 | 501, 502 | sylnib 328 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο(,)Ο) β
{0}) β Β¬ π =
0) |
504 | 503, 479 | syl 17 |
. . . . . . . . . . . . . . . 16
β’ (π β ((-Ο(,)Ο) β
{0}) β if(π = 0, 1,
(π / (2 Β·
(sinβ(π / 2))))) =
(π / (2 Β·
(sinβ(π /
2))))) |
505 | 504 | mpteq2ia 5251 |
. . . . . . . . . . . . . . 15
β’ (π β ((-Ο(,)Ο) β
{0}) β¦ if(π = 0, 1,
(π / (2 Β·
(sinβ(π / 2)))))) =
(π β ((-Ο(,)Ο)
β {0}) β¦ (π /
(2 Β· (sinβ(π /
2))))) |
506 | 500, 505 | eqtri 2761 |
. . . . . . . . . . . . . 14
β’ ((π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
((-Ο(,)Ο) β {0})) = (π β ((-Ο(,)Ο) β {0}) β¦
(π / (2 Β·
(sinβ(π /
2))))) |
507 | 506 | oveq1i 7416 |
. . . . . . . . . . . . 13
β’ (((π β (-Ο(,)Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
((-Ο(,)Ο) β {0})) limβ 0) = ((π β ((-Ο(,)Ο) β {0}) β¦
(π / (2 Β·
(sinβ(π / 2)))))
limβ 0) |
508 | 473, 498,
507 | 3eqtrri 2766 |
. . . . . . . . . . . 12
β’ ((π β ((-Ο(,)Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))) limβ 0) = (πΎ limβ 0) |
509 | 420, 508 | eleqtri 2832 |
. . . . . . . . . . 11
β’ 1 β
(πΎ limβ
0) |
510 | 509 | a1i 11 |
. . . . . . . . . 10
β’ (π = 0 β 1 β (πΎ limβ
0)) |
511 | | fveq2 6889 |
. . . . . . . . . . 11
β’ (π = 0 β (πΎβπ ) = (πΎβ0)) |
512 | 475, 10, 47 | fvmpt 6996 |
. . . . . . . . . . . 12
β’ (0 β
(-Ο[,]Ο) β (πΎβ0) = 1) |
513 | 434, 512 | ax-mp 5 |
. . . . . . . . . . 11
β’ (πΎβ0) = 1 |
514 | 511, 513 | eqtrdi 2789 |
. . . . . . . . . 10
β’ (π = 0 β (πΎβπ ) = 1) |
515 | | oveq2 7414 |
. . . . . . . . . 10
β’ (π = 0 β (πΎ limβ π ) = (πΎ limβ 0)) |
516 | 510, 514,
515 | 3eltr4d 2849 |
. . . . . . . . 9
β’ (π = 0 β (πΎβπ ) β (πΎ limβ π )) |
517 | 427, 12 | sstri 3991 |
. . . . . . . . . . 11
β’
(-Ο[,]Ο) β β |
518 | 517 | a1i 11 |
. . . . . . . . . 10
β’ (π = 0 β (-Ο[,]Ο)
β β) |
519 | 38 | a1i 11 |
. . . . . . . . . . . 12
β’ (π = 0 β Ο β
β) |
520 | 519 | renegcld 11638 |
. . . . . . . . . . 11
β’ (π = 0 β -Ο β
β) |
521 | | id 22 |
. . . . . . . . . . . 12
β’ (π = 0 β π = 0) |
522 | 35 | a1i 11 |
. . . . . . . . . . . 12
β’ (π = 0 β 0 β
β) |
523 | 521, 522 | eqeltrd 2834 |
. . . . . . . . . . 11
β’ (π = 0 β π β β) |
524 | 431, 521 | breqtrrid 5186 |
. . . . . . . . . . 11
β’ (π = 0 β -Ο β€ π ) |
525 | 521, 432 | eqbrtrdi 5187 |
. . . . . . . . . . 11
β’ (π = 0 β π β€ Ο) |
526 | 520, 519,
523, 524, 525 | eliccd 44204 |
. . . . . . . . . 10
β’ (π = 0 β π β (-Ο[,]Ο)) |
527 | 57 | oveq1i 7416 |
. . . . . . . . . . . 12
β’
((topGenβran (,)) βΎt (-Ο[,]Ο)) =
(((TopOpenββfld) βΎt β)
βΎt (-Ο[,]Ο)) |
528 | 56 | cnfldtop 24292 |
. . . . . . . . . . . . 13
β’
(TopOpenββfld) β Top |
529 | | reex 11198 |
. . . . . . . . . . . . 13
β’ β
β V |
530 | | restabs 22661 |
. . . . . . . . . . . . 13
β’
(((TopOpenββfld) β Top β§ (-Ο[,]Ο)
β β β§ β β V) β
(((TopOpenββfld) βΎt β)
βΎt (-Ο[,]Ο)) = ((TopOpenββfld)
βΎt (-Ο[,]Ο))) |
531 | 528, 427,
529, 530 | mp3an 1462 |
. . . . . . . . . . . 12
β’
(((TopOpenββfld) βΎt β)
βΎt (-Ο[,]Ο)) = ((TopOpenββfld)
βΎt (-Ο[,]Ο)) |
532 | 527, 531 | eqtri 2761 |
. . . . . . . . . . 11
β’
((topGenβran (,)) βΎt (-Ο[,]Ο)) =
((TopOpenββfld) βΎt
(-Ο[,]Ο)) |
533 | 56, 532 | cnplimc 25396 |
. . . . . . . . . 10
β’
(((-Ο[,]Ο) β β β§ π β (-Ο[,]Ο)) β (πΎ β ((((topGenβran
(,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ ) β (πΎ:(-Ο[,]Ο)βΆβ β§ (πΎβπ ) β (πΎ limβ π )))) |
534 | 518, 526,
533 | syl2anc 585 |
. . . . . . . . 9
β’ (π = 0 β (πΎ β ((((topGenβran (,))
βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ ) β (πΎ:(-Ο[,]Ο)βΆβ β§ (πΎβπ ) β (πΎ limβ π )))) |
535 | 15, 516, 534 | mpbir2and 712 |
. . . . . . . 8
β’ (π = 0 β πΎ β ((((topGenβran (,))
βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ )) |
536 | 535 | adantl 483 |
. . . . . . 7
β’ ((π β (-Ο[,]Ο) β§
π = 0) β πΎ β ((((topGenβran
(,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ )) |
537 | | simpl 484 |
. . . . . . . . . . 11
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β π β
(-Ο[,]Ο)) |
538 | 502 | notbii 320 |
. . . . . . . . . . . . 13
β’ (Β¬
π β {0} β Β¬
π = 0) |
539 | 538 | biimpri 227 |
. . . . . . . . . . . 12
β’ (Β¬
π = 0 β Β¬ π β {0}) |
540 | 539 | adantl 483 |
. . . . . . . . . . 11
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β Β¬
π β
{0}) |
541 | 537, 540 | eldifd 3959 |
. . . . . . . . . 10
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β π β ((-Ο[,]Ο) β
{0})) |
542 | | fveq2 6889 |
. . . . . . . . . . . 12
β’ (π₯ = π β ((((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ₯) = ((((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ )) |
543 | 542 | eleq2d 2820 |
. . . . . . . . . . 11
β’ (π₯ = π β ((π β ((-Ο[,]Ο) β {0}) β¦
(π / (2 Β·
(sinβ(π / 2)))))
β ((((topGenβran (,)) βΎt ((-Ο[,]Ο) β
{0})) CnP (TopOpenββfld))βπ₯) β (π β ((-Ο[,]Ο) β {0}) β¦
(π / (2 Β·
(sinβ(π / 2)))))
β ((((topGenβran (,)) βΎt ((-Ο[,]Ο) β
{0})) CnP (TopOpenββfld))βπ ))) |
544 | 429 | ssdifssd 4142 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β ((-Ο[,]Ο) β {0}) β β) |
545 | 544, 145 | idcncfg 44576 |
. . . . . . . . . . . . . . . 16
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ π ) β (((-Ο[,]Ο) β
{0})βcnββ)) |
546 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . 19
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ (2 Β· (sinβ(π / 2)))) = (π β ((-Ο[,]Ο) β {0}) β¦
(2 Β· (sinβ(π /
2)))) |
547 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο[,]Ο) β
{0}) β 2 β β) |
548 | | eldifi 4126 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο[,]Ο) β
{0}) β π β
(-Ο[,]Ο)) |
549 | 517, 548 | sselid 3980 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π β ((-Ο[,]Ο) β
{0}) β π β
β) |
550 | 549 | halfcld 12454 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π β ((-Ο[,]Ο) β
{0}) β (π / 2) β
β) |
551 | 550 | sincld 16070 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο[,]Ο) β
{0}) β (sinβ(π /
2)) β β) |
552 | 547, 551 | mulcld 11231 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β ((-Ο[,]Ο) β
{0}) β (2 Β· (sinβ(π / 2))) β β) |
553 | 81 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π β ((-Ο[,]Ο) β
{0}) β 2 β 0) |
554 | | eldifsni 4793 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο[,]Ο) β
{0}) β π β
0) |
555 | 548, 554,
489 | syl2anc 585 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π β ((-Ο[,]Ο) β
{0}) β (sinβ(π /
2)) β 0) |
556 | 547, 551,
553, 555 | mulne0d 11863 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π β ((-Ο[,]Ο) β
{0}) β (2 Β· (sinβ(π / 2))) β 0) |
557 | 556 | neneqd 2946 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο[,]Ο) β
{0}) β Β¬ (2 Β· (sinβ(π / 2))) = 0) |
558 | | elsng 4642 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ ((2
Β· (sinβ(π /
2))) β β β ((2 Β· (sinβ(π / 2))) β {0} β (2 Β·
(sinβ(π / 2))) =
0)) |
559 | 552, 558 | syl 17 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (π β ((-Ο[,]Ο) β
{0}) β ((2 Β· (sinβ(π / 2))) β {0} β (2 Β·
(sinβ(π / 2))) =
0)) |
560 | 557, 559 | mtbird 325 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β ((-Ο[,]Ο) β
{0}) β Β¬ (2 Β· (sinβ(π / 2))) β {0}) |
561 | 552, 560 | eldifd 3959 |
. . . . . . . . . . . . . . . . . . 19
β’ (π β ((-Ο[,]Ο) β
{0}) β (2 Β· (sinβ(π / 2))) β (β β
{0})) |
562 | 546, 561 | fmpti 7109 |
. . . . . . . . . . . . . . . . . 18
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ (2 Β· (sinβ(π / 2)))):((-Ο[,]Ο) β
{0})βΆ(β β {0}) |
563 | | difss 4131 |
. . . . . . . . . . . . . . . . . . 19
β’ (β
β {0}) β β |
564 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (π β β β¦ 2) =
(π β β β¦
2) |
565 | 175, 176,
175 | constcncfg 44575 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (2 β
β β (π β
β β¦ 2) β (ββcnββ)) |
566 | 102, 565 | mp1i 13 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (π β β
β¦ 2) β (ββcnββ)) |
567 | | 2cnd 12287 |
. . . . . . . . . . . . . . . . . . . . . 22
β’
((β€ β§ π
β ((-Ο[,]Ο) β {0})) β 2 β β) |
568 | 564, 566,
544, 145, 567 | cncfmptssg 44574 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ 2) β (((-Ο[,]Ο) β
{0})βcnββ)) |
569 | 549, 547,
553 | divrecd 11990 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (π β ((-Ο[,]Ο) β
{0}) β (π / 2) =
(π Β· (1 /
2))) |
570 | 569 | mpteq2ia 5251 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ (π / 2)) =
(π β ((-Ο[,]Ο)
β {0}) β¦ (π
Β· (1 / 2))) |
571 | | eqid 2733 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (π β β β¦ (1 / 2))
= (π β β β¦
(1 / 2)) |
572 | 144 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ ((1 / 2)
β β β β β β) |
573 | | id 22 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
β’ ((1 / 2)
β β β (1 / 2) β β) |
574 | 572, 573,
572 | constcncfg 44575 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
β’ ((1 / 2)
β β β (π
β β β¦ (1 / 2)) β (ββcnββ)) |
575 | 94, 574 | mp1i 13 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’ (β€
β (π β β
β¦ (1 / 2)) β (ββcnββ)) |
576 | 94 | a1i 11 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
β’
((β€ β§ π
β ((-Ο[,]Ο) β {0})) β (1 / 2) β
β) |
577 | 571, 575,
544, 145, 576 | cncfmptssg 44574 |
. . . . . . . . . . . . . . . . . . . . . . . 24
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ (1 / 2)) β (((-Ο[,]Ο) β
{0})βcnββ)) |
578 | 545, 577 | mulcncf 24955 |
. . . . . . . . . . . . . . . . . . . . . . 23
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ (π Β· (1 / 2))) β (((-Ο[,]Ο)
β {0})βcnββ)) |
579 | 570, 578 | eqeltrid 2838 |
. . . . . . . . . . . . . . . . . . . . . 22
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ (π / 2)) β (((-Ο[,]Ο) β
{0})βcnββ)) |
580 | 182, 579 | cncfmpt1f 24422 |
. . . . . . . . . . . . . . . . . . . . 21
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ (sinβ(π / 2))) β (((-Ο[,]Ο) β
{0})βcnββ)) |
581 | 568, 580 | mulcncf 24955 |
. . . . . . . . . . . . . . . . . . . 20
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ (2 Β· (sinβ(π / 2)))) β (((-Ο[,]Ο) β
{0})βcnββ)) |
582 | 581 | mptru 1549 |
. . . . . . . . . . . . . . . . . . 19
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ (2 Β· (sinβ(π / 2)))) β (((-Ο[,]Ο) β
{0})βcnββ) |
583 | | cncfcdm 24406 |
. . . . . . . . . . . . . . . . . . 19
β’
(((β β {0}) β β β§ (π β ((-Ο[,]Ο) β {0}) β¦
(2 Β· (sinβ(π /
2)))) β (((-Ο[,]Ο) β {0})βcnββ)) β ((π β ((-Ο[,]Ο) β {0}) β¦
(2 Β· (sinβ(π /
2)))) β (((-Ο[,]Ο) β {0})βcnβ(β β {0})) β (π β ((-Ο[,]Ο) β
{0}) β¦ (2 Β· (sinβ(π / 2)))):((-Ο[,]Ο) β
{0})βΆ(β β {0}))) |
584 | 563, 582,
583 | mp2an 691 |
. . . . . . . . . . . . . . . . . 18
β’ ((π β ((-Ο[,]Ο) β
{0}) β¦ (2 Β· (sinβ(π / 2)))) β (((-Ο[,]Ο) β
{0})βcnβ(β β {0}))
β (π β
((-Ο[,]Ο) β {0}) β¦ (2 Β· (sinβ(π / 2)))):((-Ο[,]Ο) β
{0})βΆ(β β {0})) |
585 | 562, 584 | mpbir 230 |
. . . . . . . . . . . . . . . . 17
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ (2 Β· (sinβ(π / 2)))) β (((-Ο[,]Ο) β
{0})βcnβ(β β
{0})) |
586 | 585 | a1i 11 |
. . . . . . . . . . . . . . . 16
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ (2 Β· (sinβ(π / 2)))) β (((-Ο[,]Ο) β
{0})βcnβ(β β
{0}))) |
587 | 545, 586 | divcncf 24956 |
. . . . . . . . . . . . . . 15
β’ (β€
β (π β
((-Ο[,]Ο) β {0}) β¦ (π / (2 Β· (sinβ(π / 2))))) β (((-Ο[,]Ο) β
{0})βcnββ)) |
588 | 587 | mptru 1549 |
. . . . . . . . . . . . . 14
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))) β (((-Ο[,]Ο) β {0})βcnββ) |
589 | 428 | ssdifssd 4142 |
. . . . . . . . . . . . . . . . 17
β’ (β€
β ((-Ο[,]Ο) β {0}) β β) |
590 | 589 | mptru 1549 |
. . . . . . . . . . . . . . . 16
β’
((-Ο[,]Ο) β {0}) β β |
591 | 590, 12 | sstri 3991 |
. . . . . . . . . . . . . . 15
β’
((-Ο[,]Ο) β {0}) β β |
592 | 57 | oveq1i 7416 |
. . . . . . . . . . . . . . . . 17
β’
((topGenβran (,)) βΎt ((-Ο[,]Ο) β
{0})) = (((TopOpenββfld) βΎt β)
βΎt ((-Ο[,]Ο) β {0})) |
593 | | restabs 22661 |
. . . . . . . . . . . . . . . . . 18
β’
(((TopOpenββfld) β Top β§ ((-Ο[,]Ο)
β {0}) β β β§ β β V) β
(((TopOpenββfld) βΎt β)
βΎt ((-Ο[,]Ο) β {0})) =
((TopOpenββfld) βΎt ((-Ο[,]Ο)
β {0}))) |
594 | 528, 590,
529, 593 | mp3an 1462 |
. . . . . . . . . . . . . . . . 17
β’
(((TopOpenββfld) βΎt β)
βΎt ((-Ο[,]Ο) β {0})) =
((TopOpenββfld) βΎt ((-Ο[,]Ο)
β {0})) |
595 | 592, 594 | eqtri 2761 |
. . . . . . . . . . . . . . . 16
β’
((topGenβran (,)) βΎt ((-Ο[,]Ο) β
{0})) = ((TopOpenββfld) βΎt
((-Ο[,]Ο) β {0})) |
596 | | unicntop 24294 |
. . . . . . . . . . . . . . . . . . 19
β’ β =
βͺ
(TopOpenββfld) |
597 | 596 | restid 17376 |
. . . . . . . . . . . . . . . . . 18
β’
((TopOpenββfld) β Top β
((TopOpenββfld) βΎt β) =
(TopOpenββfld)) |
598 | 528, 597 | ax-mp 5 |
. . . . . . . . . . . . . . . . 17
β’
((TopOpenββfld) βΎt β) =
(TopOpenββfld) |
599 | 598 | eqcomi 2742 |
. . . . . . . . . . . . . . . 16
β’
(TopOpenββfld) =
((TopOpenββfld) βΎt
β) |
600 | 56, 595, 599 | cncfcn 24418 |
. . . . . . . . . . . . . . 15
β’
((((-Ο[,]Ο) β {0}) β β β§ β β
β) β (((-Ο[,]Ο) β {0})βcnββ) = (((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) Cn
(TopOpenββfld))) |
601 | 591, 144,
600 | mp2an 691 |
. . . . . . . . . . . . . 14
β’
(((-Ο[,]Ο) β {0})βcnββ) = (((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) Cn
(TopOpenββfld)) |
602 | 588, 601 | eleqtri 2832 |
. . . . . . . . . . . . 13
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))) β (((topGenβran (,)) βΎt ((-Ο[,]Ο)
β {0})) Cn (TopOpenββfld)) |
603 | | resttopon 22657 |
. . . . . . . . . . . . . . 15
β’
(((topGenβran (,)) β (TopOnββ) β§
((-Ο[,]Ο) β {0}) β β) β ((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) β
(TopOnβ((-Ο[,]Ο) β {0}))) |
604 | 60, 590, 603 | mp2an 691 |
. . . . . . . . . . . . . 14
β’
((topGenβran (,)) βΎt ((-Ο[,]Ο) β
{0})) β (TopOnβ((-Ο[,]Ο) β {0})) |
605 | 56 | cnfldtopon 24291 |
. . . . . . . . . . . . . 14
β’
(TopOpenββfld) β
(TopOnββ) |
606 | | cncnp 22776 |
. . . . . . . . . . . . . 14
β’
((((topGenβran (,)) βΎt ((-Ο[,]Ο) β
{0})) β (TopOnβ((-Ο[,]Ο) β {0})) β§
(TopOpenββfld) β (TopOnββ)) β
((π β ((-Ο[,]Ο)
β {0}) β¦ (π /
(2 Β· (sinβ(π /
2))))) β (((topGenβran (,)) βΎt ((-Ο[,]Ο)
β {0})) Cn (TopOpenββfld)) β ((π β ((-Ο[,]Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))):((-Ο[,]Ο) β {0})βΆβ β§ βπ₯ β ((-Ο[,]Ο) β
{0})(π β
((-Ο[,]Ο) β {0}) β¦ (π / (2 Β· (sinβ(π / 2))))) β ((((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ₯)))) |
607 | 604, 605,
606 | mp2an 691 |
. . . . . . . . . . . . 13
β’ ((π β ((-Ο[,]Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))) β (((topGenβran (,)) βΎt ((-Ο[,]Ο)
β {0})) Cn (TopOpenββfld)) β ((π β ((-Ο[,]Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))):((-Ο[,]Ο) β {0})βΆβ β§ βπ₯ β ((-Ο[,]Ο) β
{0})(π β
((-Ο[,]Ο) β {0}) β¦ (π / (2 Β· (sinβ(π / 2))))) β ((((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ₯))) |
608 | 602, 607 | mpbi 229 |
. . . . . . . . . . . 12
β’ ((π β ((-Ο[,]Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))):((-Ο[,]Ο) β {0})βΆβ β§ βπ₯ β ((-Ο[,]Ο) β
{0})(π β
((-Ο[,]Ο) β {0}) β¦ (π / (2 Β· (sinβ(π / 2))))) β ((((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ₯)) |
609 | 608 | simpri 487 |
. . . . . . . . . . 11
β’
βπ₯ β
((-Ο[,]Ο) β {0})(π β ((-Ο[,]Ο) β {0}) β¦
(π / (2 Β·
(sinβ(π / 2)))))
β ((((topGenβran (,)) βΎt ((-Ο[,]Ο) β
{0})) CnP (TopOpenββfld))βπ₯) |
610 | 543, 609 | vtoclri 3577 |
. . . . . . . . . 10
β’ (π β ((-Ο[,]Ο) β
{0}) β (π β
((-Ο[,]Ο) β {0}) β¦ (π / (2 Β· (sinβ(π / 2))))) β ((((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ )) |
611 | 541, 610 | syl 17 |
. . . . . . . . 9
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β (π β ((-Ο[,]Ο) β
{0}) β¦ (π / (2
Β· (sinβ(π /
2))))) β ((((topGenβran (,)) βΎt ((-Ο[,]Ο)
β {0})) CnP (TopOpenββfld))βπ )) |
612 | 10 | reseq1i 5976 |
. . . . . . . . . 10
β’ (πΎ βΎ ((-Ο[,]Ο) β
{0})) = ((π β
(-Ο[,]Ο) β¦ if(π
= 0, 1, (π / (2 Β·
(sinβ(π / 2))))))
βΎ ((-Ο[,]Ο) β {0})) |
613 | | difss 4131 |
. . . . . . . . . . 11
β’
((-Ο[,]Ο) β {0}) β (-Ο[,]Ο) |
614 | | resmpt 6036 |
. . . . . . . . . . 11
β’
(((-Ο[,]Ο) β {0}) β (-Ο[,]Ο) β ((π β (-Ο[,]Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
((-Ο[,]Ο) β {0})) = (π β ((-Ο[,]Ο) β {0}) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2))))))) |
615 | 613, 614 | ax-mp 5 |
. . . . . . . . . 10
β’ ((π β (-Ο[,]Ο) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) βΎ
((-Ο[,]Ο) β {0})) = (π β ((-Ο[,]Ο) β {0}) β¦
if(π = 0, 1, (π / (2 Β· (sinβ(π / 2)))))) |
616 | | eldifn 4127 |
. . . . . . . . . . . . 13
β’ (π β ((-Ο[,]Ο) β
{0}) β Β¬ π β
{0}) |
617 | 616, 502 | sylnib 328 |
. . . . . . . . . . . 12
β’ (π β ((-Ο[,]Ο) β
{0}) β Β¬ π =
0) |
618 | 617, 479 | syl 17 |
. . . . . . . . . . 11
β’ (π β ((-Ο[,]Ο) β
{0}) β if(π = 0, 1,
(π / (2 Β·
(sinβ(π / 2))))) =
(π / (2 Β·
(sinβ(π /
2))))) |
619 | 618 | mpteq2ia 5251 |
. . . . . . . . . 10
β’ (π β ((-Ο[,]Ο) β
{0}) β¦ if(π = 0, 1,
(π / (2 Β·
(sinβ(π / 2)))))) =
(π β ((-Ο[,]Ο)
β {0}) β¦ (π /
(2 Β· (sinβ(π /
2))))) |
620 | 612, 615,
619 | 3eqtri 2765 |
. . . . . . . . 9
β’ (πΎ βΎ ((-Ο[,]Ο) β
{0})) = (π β
((-Ο[,]Ο) β {0}) β¦ (π / (2 Β· (sinβ(π / 2))))) |
621 | | restabs 22661 |
. . . . . . . . . . . 12
β’
(((topGenβran (,)) β Top β§ ((-Ο[,]Ο) β {0})
β (-Ο[,]Ο) β§ (-Ο[,]Ο) β V) β
(((topGenβran (,)) βΎt (-Ο[,]Ο))
βΎt ((-Ο[,]Ο) β {0})) = ((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0}))) |
622 | 453, 613,
454, 621 | mp3an 1462 |
. . . . . . . . . . 11
β’
(((topGenβran (,)) βΎt (-Ο[,]Ο))
βΎt ((-Ο[,]Ο) β {0})) = ((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) |
623 | 622 | oveq1i 7416 |
. . . . . . . . . 10
β’
((((topGenβran (,)) βΎt (-Ο[,]Ο))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld)) = (((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld)) |
624 | 623 | fveq1i 6890 |
. . . . . . . . 9
β’
(((((topGenβran (,)) βΎt (-Ο[,]Ο))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ ) = ((((topGenβran (,))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ ) |
625 | 611, 620,
624 | 3eltr4g 2851 |
. . . . . . . 8
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β (πΎ βΎ ((-Ο[,]Ο) β
{0})) β (((((topGenβran (,)) βΎt (-Ο[,]Ο))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ )) |
626 | 452, 613 | pm3.2i 472 |
. . . . . . . . . 10
β’
(((topGenβran (,)) βΎt (-Ο[,]Ο)) β Top
β§ ((-Ο[,]Ο) β {0}) β (-Ο[,]Ο)) |
627 | 626 | a1i 11 |
. . . . . . . . 9
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β
(((topGenβran (,)) βΎt (-Ο[,]Ο)) β Top β§
((-Ο[,]Ο) β {0}) β (-Ο[,]Ο))) |
628 | | ssdif 4139 |
. . . . . . . . . . . . . 14
β’
((-Ο[,]Ο) β β β ((-Ο[,]Ο) β {0})
β (β β {0})) |
629 | 427, 628 | ax-mp 5 |
. . . . . . . . . . . . 13
β’
((-Ο[,]Ο) β {0}) β (β β
{0}) |
630 | 629, 541 | sselid 3980 |
. . . . . . . . . . . 12
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β π β (β β
{0})) |
631 | | sscon 4138 |
. . . . . . . . . . . . . . . . 17
β’ ({0}
β (-Ο[,]Ο) β (β β (-Ο[,]Ο)) β (β
β {0})) |
632 | 436, 631 | ax-mp 5 |
. . . . . . . . . . . . . . . 16
β’ (β
β (-Ο[,]Ο)) β (β β {0}) |
633 | 629, 632 | unssi 4185 |
. . . . . . . . . . . . . . 15
β’
(((-Ο[,]Ο) β {0}) βͺ (β β (-Ο[,]Ο)))
β (β β {0}) |
634 | | simpr 486 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β (β β {0})
β§ π β
(-Ο[,]Ο)) β π
β (-Ο[,]Ο)) |
635 | | eldifn 4127 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β (β β {0})
β Β¬ π β
{0}) |
636 | 635 | adantr 482 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β (β β {0})
β§ π β
(-Ο[,]Ο)) β Β¬ π β {0}) |
637 | 634, 636 | eldifd 3959 |
. . . . . . . . . . . . . . . . . 18
β’ ((π β (β β {0})
β§ π β
(-Ο[,]Ο)) β π
β ((-Ο[,]Ο) β {0})) |
638 | | elun1 4176 |
. . . . . . . . . . . . . . . . . 18
β’ (π β ((-Ο[,]Ο) β
{0}) β π β
(((-Ο[,]Ο) β {0}) βͺ (β β
(-Ο[,]Ο)))) |
639 | 637, 638 | syl 17 |
. . . . . . . . . . . . . . . . 17
β’ ((π β (β β {0})
β§ π β
(-Ο[,]Ο)) β π
β (((-Ο[,]Ο) β {0}) βͺ (β β
(-Ο[,]Ο)))) |
640 | | eldifi 4126 |
. . . . . . . . . . . . . . . . . . . 20
β’ (π β (β β {0})
β π β
β) |
641 | 640 | adantr 482 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β (β β {0})
β§ Β¬ π β
(-Ο[,]Ο)) β π
β β) |
642 | | simpr 486 |
. . . . . . . . . . . . . . . . . . 19
β’ ((π β (β β {0})
β§ Β¬ π β
(-Ο[,]Ο)) β Β¬ π β (-Ο[,]Ο)) |
643 | 641, 642 | eldifd 3959 |
. . . . . . . . . . . . . . . . . 18
β’ ((π β (β β {0})
β§ Β¬ π β
(-Ο[,]Ο)) β π
β (β β (-Ο[,]Ο))) |
644 | | elun2 4177 |
. . . . . . . . . . . . . . . . . 18
β’ (π β (β β
(-Ο[,]Ο)) β π
β (((-Ο[,]Ο) β {0}) βͺ (β β
(-Ο[,]Ο)))) |
645 | 643, 644 | syl 17 |
. . . . . . . . . . . . . . . . 17
β’ ((π β (β β {0})
β§ Β¬ π β
(-Ο[,]Ο)) β π
β (((-Ο[,]Ο) β {0}) βͺ (β β
(-Ο[,]Ο)))) |
646 | 639, 645 | pm2.61dan 812 |
. . . . . . . . . . . . . . . 16
β’ (π β (β β {0})
β π β
(((-Ο[,]Ο) β {0}) βͺ (β β
(-Ο[,]Ο)))) |
647 | 646 | ssriv 3986 |
. . . . . . . . . . . . . . 15
β’ (β
β {0}) β (((-Ο[,]Ο) β {0}) βͺ (β β
(-Ο[,]Ο))) |
648 | 633, 647 | eqssi 3998 |
. . . . . . . . . . . . . 14
β’
(((-Ο[,]Ο) β {0}) βͺ (β β (-Ο[,]Ο))) =
(β β {0}) |
649 | 648 | fveq2i 6892 |
. . . . . . . . . . . . 13
β’
((intβ(topGenβran (,)))β(((-Ο[,]Ο) β {0})
βͺ (β β (-Ο[,]Ο)))) = ((intβ(topGenβran
(,)))β(β β {0})) |
650 | 61 | cldopn 22527 |
. . . . . . . . . . . . . . 15
β’ ({0}
β (Clsdβ(topGenβran (,))) β (β β {0}) β
(topGenβran (,))) |
651 | 59, 650 | ax-mp 5 |
. . . . . . . . . . . . . 14
β’ (β
β {0}) β (topGenβran (,)) |
652 | | isopn3i 22578 |
. . . . . . . . . . . . . 14
β’
(((topGenβran (,)) β Top β§ (β β {0}) β
(topGenβran (,))) β ((intβ(topGenβran
(,)))β(β β {0})) = (β β {0})) |
653 | 453, 651,
652 | mp2an 691 |
. . . . . . . . . . . . 13
β’
((intβ(topGenβran (,)))β(β β {0})) =
(β β {0}) |
654 | 649, 653 | eqtri 2761 |
. . . . . . . . . . . 12
β’
((intβ(topGenβran (,)))β(((-Ο[,]Ο) β {0})
βͺ (β β (-Ο[,]Ο)))) = (β β
{0}) |
655 | 630, 654 | eleqtrrdi 2845 |
. . . . . . . . . . 11
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β π β
((intβ(topGenβran (,)))β(((-Ο[,]Ο) β {0}) βͺ
(β β (-Ο[,]Ο))))) |
656 | 655, 537 | elind 4194 |
. . . . . . . . . 10
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β π β
(((intβ(topGenβran (,)))β(((-Ο[,]Ο) β {0}) βͺ
(β β (-Ο[,]Ο)))) β© (-Ο[,]Ο))) |
657 | | eqid 2733 |
. . . . . . . . . . . 12
β’
((topGenβran (,)) βΎt (-Ο[,]Ο)) =
((topGenβran (,)) βΎt (-Ο[,]Ο)) |
658 | 61, 657 | restntr 22678 |
. . . . . . . . . . 11
β’
(((topGenβran (,)) β Top β§ (-Ο[,]Ο) β β
β§ ((-Ο[,]Ο) β {0}) β (-Ο[,]Ο)) β
((intβ((topGenβran (,)) βΎt
(-Ο[,]Ο)))β((-Ο[,]Ο) β {0})) =
(((intβ(topGenβran (,)))β(((-Ο[,]Ο) β {0}) βͺ
(β β (-Ο[,]Ο)))) β© (-Ο[,]Ο))) |
659 | 453, 427,
613, 658 | mp3an 1462 |
. . . . . . . . . 10
β’
((intβ((topGenβran (,)) βΎt
(-Ο[,]Ο)))β((-Ο[,]Ο) β {0})) =
(((intβ(topGenβran (,)))β(((-Ο[,]Ο) β {0}) βͺ
(β β (-Ο[,]Ο)))) β© (-Ο[,]Ο)) |
660 | 656, 659 | eleqtrrdi 2845 |
. . . . . . . . 9
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β π β
((intβ((topGenβran (,)) βΎt
(-Ο[,]Ο)))β((-Ο[,]Ο) β {0}))) |
661 | 14 | a1i 11 |
. . . . . . . . 9
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β πΎ:(-Ο[,]Ο)βΆβ) |
662 | 451 | toponunii 22410 |
. . . . . . . . . 10
β’
(-Ο[,]Ο) = βͺ ((topGenβran (,))
βΎt (-Ο[,]Ο)) |
663 | 662, 596 | cnprest 22785 |
. . . . . . . . 9
β’
(((((topGenβran (,)) βΎt (-Ο[,]Ο)) β
Top β§ ((-Ο[,]Ο) β {0}) β (-Ο[,]Ο)) β§ (π β
((intβ((topGenβran (,)) βΎt
(-Ο[,]Ο)))β((-Ο[,]Ο) β {0})) β§ πΎ:(-Ο[,]Ο)βΆβ)) β
(πΎ β
((((topGenβran (,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ ) β (πΎ βΎ ((-Ο[,]Ο) β {0}))
β (((((topGenβran (,)) βΎt (-Ο[,]Ο))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ ))) |
664 | 627, 660,
661, 663 | syl12anc 836 |
. . . . . . . 8
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β (πΎ β ((((topGenβran
(,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ ) β (πΎ βΎ ((-Ο[,]Ο) β {0}))
β (((((topGenβran (,)) βΎt (-Ο[,]Ο))
βΎt ((-Ο[,]Ο) β {0})) CnP
(TopOpenββfld))βπ ))) |
665 | 625, 664 | mpbird 257 |
. . . . . . 7
β’ ((π β (-Ο[,]Ο) β§
Β¬ π = 0) β πΎ β ((((topGenβran
(,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ )) |
666 | 536, 665 | pm2.61dan 812 |
. . . . . 6
β’ (π β (-Ο[,]Ο) β
πΎ β
((((topGenβran (,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ )) |
667 | 666 | rgen 3064 |
. . . . 5
β’
βπ β
(-Ο[,]Ο)πΎ β
((((topGenβran (,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ ) |
668 | | cncnp 22776 |
. . . . . 6
β’
((((topGenβran (,)) βΎt (-Ο[,]Ο)) β
(TopOnβ(-Ο[,]Ο)) β§ (TopOpenββfld) β
(TopOnββ)) β (πΎ β (((topGenβran (,))
βΎt (-Ο[,]Ο)) Cn (TopOpenββfld))
β (πΎ:(-Ο[,]Ο)βΆβ β§
βπ β
(-Ο[,]Ο)πΎ β
((((topGenβran (,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ )))) |
669 | 451, 605,
668 | mp2an 691 |
. . . . 5
β’ (πΎ β (((topGenβran (,))
βΎt (-Ο[,]Ο)) Cn (TopOpenββfld))
β (πΎ:(-Ο[,]Ο)βΆβ β§
βπ β
(-Ο[,]Ο)πΎ β
((((topGenβran (,)) βΎt (-Ο[,]Ο)) CnP
(TopOpenββfld))βπ ))) |
670 | 14, 667, 669 | mpbir2an 710 |
. . . 4
β’ πΎ β (((topGenβran (,))
βΎt (-Ο[,]Ο)) Cn
(TopOpenββfld)) |
671 | 56, 532, 599 | cncfcn 24418 |
. . . . . 6
β’
(((-Ο[,]Ο) β β β§ β β β) β
((-Ο[,]Ο)βcnββ) =
(((topGenβran (,)) βΎt (-Ο[,]Ο)) Cn
(TopOpenββfld))) |
672 | 517, 144,
671 | mp2an 691 |
. . . . 5
β’
((-Ο[,]Ο)βcnββ) = (((topGenβran (,))
βΎt (-Ο[,]Ο)) Cn
(TopOpenββfld)) |
673 | 672 | eqcomi 2742 |
. . . 4
β’
(((topGenβran (,)) βΎt (-Ο[,]Ο)) Cn
(TopOpenββfld)) = ((-Ο[,]Ο)βcnββ) |
674 | 670, 673 | eleqtri 2832 |
. . 3
β’ πΎ β
((-Ο[,]Ο)βcnββ) |
675 | | cncfcdm 24406 |
. . 3
β’ ((β
β β β§ πΎ
β ((-Ο[,]Ο)βcnββ)) β (πΎ β ((-Ο[,]Ο)βcnββ) β πΎ:(-Ο[,]Ο)βΆβ)) |
676 | 12, 674, 675 | mp2an 691 |
. 2
β’ (πΎ β
((-Ο[,]Ο)βcnββ)
β πΎ:(-Ο[,]Ο)βΆβ) |
677 | 11, 676 | mpbir 230 |
1
β’ πΎ β
((-Ο[,]Ο)βcnββ) |