Step | Hyp | Ref
| Expression |
1 | | df-div 11869 |
. . 3
β’ / =
(π₯ β β, π¦ β (β β {0})
β¦ (β©π§
β β (π¦ Β·
π§) = π₯)) |
2 | | eldifsn 4790 |
. . . . 5
β’ (π¦ β (β β {0})
β (π¦ β β
β§ π¦ β
0)) |
3 | | divval 11871 |
. . . . . . 7
β’ ((π₯ β β β§ π¦ β β β§ π¦ β 0) β (π₯ / π¦) = (β©π§ β β (π¦ Β· π§) = π₯)) |
4 | | divrec 11885 |
. . . . . . 7
β’ ((π₯ β β β§ π¦ β β β§ π¦ β 0) β (π₯ / π¦) = (π₯ Β· (1 / π¦))) |
5 | 3, 4 | eqtr3d 2775 |
. . . . . 6
β’ ((π₯ β β β§ π¦ β β β§ π¦ β 0) β
(β©π§ β
β (π¦ Β· π§) = π₯) = (π₯ Β· (1 / π¦))) |
6 | 5 | 3expb 1121 |
. . . . 5
β’ ((π₯ β β β§ (π¦ β β β§ π¦ β 0)) β
(β©π§ β
β (π¦ Β· π§) = π₯) = (π₯ Β· (1 / π¦))) |
7 | 2, 6 | sylan2b 595 |
. . . 4
β’ ((π₯ β β β§ π¦ β (β β {0}))
β (β©π§
β β (π¦ Β·
π§) = π₯) = (π₯ Β· (1 / π¦))) |
8 | 7 | mpoeq3ia 7484 |
. . 3
β’ (π₯ β β, π¦ β (β β {0})
β¦ (β©π§
β β (π¦ Β·
π§) = π₯)) = (π₯ β β, π¦ β (β β {0}) β¦ (π₯ Β· (1 / π¦))) |
9 | 1, 8 | eqtri 2761 |
. 2
β’ / =
(π₯ β β, π¦ β (β β {0})
β¦ (π₯ Β· (1 /
π¦))) |
10 | | mpomulcn.j |
. . . . . 6
β’ π½ =
(TopOpenββfld) |
11 | 10 | cnfldtopon 24291 |
. . . . 5
β’ π½ β
(TopOnββ) |
12 | 11 | a1i 11 |
. . . 4
β’ (β€
β π½ β
(TopOnββ)) |
13 | | gg-divcn.k |
. . . . 5
β’ πΎ = (π½ βΎt (β β
{0})) |
14 | | difss 4131 |
. . . . . 6
β’ (β
β {0}) β β |
15 | | resttopon 22657 |
. . . . . 6
β’ ((π½ β (TopOnββ)
β§ (β β {0}) β β) β (π½ βΎt (β β {0}))
β (TopOnβ(β β {0}))) |
16 | 12, 14, 15 | sylancl 587 |
. . . . 5
β’ (β€
β (π½
βΎt (β β {0})) β (TopOnβ(β β
{0}))) |
17 | 13, 16 | eqeltrid 2838 |
. . . 4
β’ (β€
β πΎ β
(TopOnβ(β β {0}))) |
18 | 12, 17 | cnmpt1st 23164 |
. . . 4
β’ (β€
β (π₯ β β,
π¦ β (β β
{0}) β¦ π₯) β
((π½ Γt
πΎ) Cn π½)) |
19 | 12, 17 | cnmpt2nd 23165 |
. . . . 5
β’ (β€
β (π₯ β β,
π¦ β (β β
{0}) β¦ π¦) β
((π½ Γt
πΎ) Cn πΎ)) |
20 | | eqid 2733 |
. . . . . . . 8
β’ (π§ β (β β {0})
β¦ (1 / π§)) = (π§ β (β β {0})
β¦ (1 / π§)) |
21 | | eldifsn 4790 |
. . . . . . . . 9
β’ (π§ β (β β {0})
β (π§ β β
β§ π§ β
0)) |
22 | | reccl 11876 |
. . . . . . . . 9
β’ ((π§ β β β§ π§ β 0) β (1 / π§) β
β) |
23 | 21, 22 | sylbi 216 |
. . . . . . . 8
β’ (π§ β (β β {0})
β (1 / π§) β
β) |
24 | 20, 23 | fmpti 7109 |
. . . . . . 7
β’ (π§ β (β β {0})
β¦ (1 / π§)):(β
β {0})βΆβ |
25 | | eqid 2733 |
. . . . . . . . . 10
β’ (if(1
β€ ((absβπ₯)
Β· π€), 1,
((absβπ₯) Β·
π€)) Β·
((absβπ₯) / 2)) =
(if(1 β€ ((absβπ₯)
Β· π€), 1,
((absβπ₯) Β·
π€)) Β·
((absβπ₯) /
2)) |
26 | 25 | reccn2 15538 |
. . . . . . . . 9
β’ ((π₯ β (β β {0})
β§ π€ β
β+) β βπ β β+ βπ¦ β (β β
{0})((absβ(π¦ β
π₯)) < π β (absβ((1 / π¦) β (1 / π₯))) < π€)) |
27 | | ovres 7570 |
. . . . . . . . . . . . . . 15
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β (π₯((abs β β ) βΎ ((β
β {0}) Γ (β β {0})))π¦) = (π₯(abs β β )π¦)) |
28 | | eldifi 4126 |
. . . . . . . . . . . . . . . 16
β’ (π₯ β (β β {0})
β π₯ β
β) |
29 | | eldifi 4126 |
. . . . . . . . . . . . . . . 16
β’ (π¦ β (β β {0})
β π¦ β
β) |
30 | | eqid 2733 |
. . . . . . . . . . . . . . . . . 18
β’ (abs
β β ) = (abs β β ) |
31 | 30 | cnmetdval 24279 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β β β§ π¦ β β) β (π₯(abs β β )π¦) = (absβ(π₯ β π¦))) |
32 | | abssub 15270 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β β β§ π¦ β β) β
(absβ(π₯ β π¦)) = (absβ(π¦ β π₯))) |
33 | 31, 32 | eqtrd 2773 |
. . . . . . . . . . . . . . . 16
β’ ((π₯ β β β§ π¦ β β) β (π₯(abs β β )π¦) = (absβ(π¦ β π₯))) |
34 | 28, 29, 33 | syl2an 597 |
. . . . . . . . . . . . . . 15
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β (π₯(abs
β β )π¦) =
(absβ(π¦ β π₯))) |
35 | 27, 34 | eqtrd 2773 |
. . . . . . . . . . . . . 14
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β (π₯((abs β β ) βΎ ((β
β {0}) Γ (β β {0})))π¦) = (absβ(π¦ β π₯))) |
36 | 35 | breq1d 5158 |
. . . . . . . . . . . . 13
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β ((π₯((abs β β ) βΎ ((β
β {0}) Γ (β β {0})))π¦) < π β (absβ(π¦ β π₯)) < π)) |
37 | | oveq2 7414 |
. . . . . . . . . . . . . . . . 17
β’ (π§ = π₯ β (1 / π§) = (1 / π₯)) |
38 | | ovex 7439 |
. . . . . . . . . . . . . . . . 17
β’ (1 /
π₯) β
V |
39 | 37, 20, 38 | fvmpt 6996 |
. . . . . . . . . . . . . . . 16
β’ (π₯ β (β β {0})
β ((π§ β (β
β {0}) β¦ (1 / π§))βπ₯) = (1 / π₯)) |
40 | | oveq2 7414 |
. . . . . . . . . . . . . . . . 17
β’ (π§ = π¦ β (1 / π§) = (1 / π¦)) |
41 | | ovex 7439 |
. . . . . . . . . . . . . . . . 17
β’ (1 /
π¦) β
V |
42 | 40, 20, 41 | fvmpt 6996 |
. . . . . . . . . . . . . . . 16
β’ (π¦ β (β β {0})
β ((π§ β (β
β {0}) β¦ (1 / π§))βπ¦) = (1 / π¦)) |
43 | 39, 42 | oveqan12d 7425 |
. . . . . . . . . . . . . . 15
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β (((π§
β (β β {0}) β¦ (1 / π§))βπ₯)(abs β β )((π§ β (β β {0}) β¦ (1 /
π§))βπ¦)) = ((1 / π₯)(abs β β )(1 / π¦))) |
44 | | eldifsn 4790 |
. . . . . . . . . . . . . . . . 17
β’ (π₯ β (β β {0})
β (π₯ β β
β§ π₯ β
0)) |
45 | | reccl 11876 |
. . . . . . . . . . . . . . . . 17
β’ ((π₯ β β β§ π₯ β 0) β (1 / π₯) β
β) |
46 | 44, 45 | sylbi 216 |
. . . . . . . . . . . . . . . 16
β’ (π₯ β (β β {0})
β (1 / π₯) β
β) |
47 | | reccl 11876 |
. . . . . . . . . . . . . . . . 17
β’ ((π¦ β β β§ π¦ β 0) β (1 / π¦) β
β) |
48 | 2, 47 | sylbi 216 |
. . . . . . . . . . . . . . . 16
β’ (π¦ β (β β {0})
β (1 / π¦) β
β) |
49 | 30 | cnmetdval 24279 |
. . . . . . . . . . . . . . . . 17
β’ (((1 /
π₯) β β β§ (1
/ π¦) β β) β
((1 / π₯)(abs β
β )(1 / π¦)) =
(absβ((1 / π₯) β
(1 / π¦)))) |
50 | | abssub 15270 |
. . . . . . . . . . . . . . . . 17
β’ (((1 /
π₯) β β β§ (1
/ π¦) β β) β
(absβ((1 / π₯) β
(1 / π¦))) = (absβ((1
/ π¦) β (1 / π₯)))) |
51 | 49, 50 | eqtrd 2773 |
. . . . . . . . . . . . . . . 16
β’ (((1 /
π₯) β β β§ (1
/ π¦) β β) β
((1 / π₯)(abs β
β )(1 / π¦)) =
(absβ((1 / π¦) β
(1 / π₯)))) |
52 | 46, 48, 51 | syl2an 597 |
. . . . . . . . . . . . . . 15
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β ((1 / π₯)(abs β β )(1 / π¦)) = (absβ((1 / π¦) β (1 / π₯)))) |
53 | 43, 52 | eqtrd 2773 |
. . . . . . . . . . . . . 14
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β (((π§
β (β β {0}) β¦ (1 / π§))βπ₯)(abs β β )((π§ β (β β {0}) β¦ (1 /
π§))βπ¦)) = (absβ((1 / π¦) β (1 / π₯)))) |
54 | 53 | breq1d 5158 |
. . . . . . . . . . . . 13
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β ((((π§
β (β β {0}) β¦ (1 / π§))βπ₯)(abs β β )((π§ β (β β {0}) β¦ (1 /
π§))βπ¦)) < π€ β (absβ((1 / π¦) β (1 / π₯))) < π€)) |
55 | 36, 54 | imbi12d 345 |
. . . . . . . . . . . 12
β’ ((π₯ β (β β {0})
β§ π¦ β (β
β {0})) β (((π₯((abs β β ) βΎ ((β
β {0}) Γ (β β {0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€) β ((absβ(π¦ β π₯)) < π β (absβ((1 / π¦) β (1 / π₯))) < π€))) |
56 | 55 | ralbidva 3176 |
. . . . . . . . . . 11
β’ (π₯ β (β β {0})
β (βπ¦ β
(β β {0})((π₯((abs β β ) βΎ ((β
β {0}) Γ (β β {0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€) β βπ¦ β (β β
{0})((absβ(π¦ β
π₯)) < π β (absβ((1 / π¦) β (1 / π₯))) < π€))) |
57 | 56 | rexbidv 3179 |
. . . . . . . . . 10
β’ (π₯ β (β β {0})
β (βπ β
β+ βπ¦ β (β β {0})((π₯((abs β β ) βΎ
((β β {0}) Γ (β β {0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€) β βπ β β+ βπ¦ β (β β
{0})((absβ(π¦ β
π₯)) < π β (absβ((1 / π¦) β (1 / π₯))) < π€))) |
58 | 57 | adantr 482 |
. . . . . . . . 9
β’ ((π₯ β (β β {0})
β§ π€ β
β+) β (βπ β β+ βπ¦ β (β β
{0})((π₯((abs β
β ) βΎ ((β β {0}) Γ (β β {0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€) β βπ β β+ βπ¦ β (β β
{0})((absβ(π¦ β
π₯)) < π β (absβ((1 / π¦) β (1 / π₯))) < π€))) |
59 | 26, 58 | mpbird 257 |
. . . . . . . 8
β’ ((π₯ β (β β {0})
β§ π€ β
β+) β βπ β β+ βπ¦ β (β β
{0})((π₯((abs β
β ) βΎ ((β β {0}) Γ (β β {0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€)) |
60 | 59 | rgen2 3198 |
. . . . . . 7
β’
βπ₯ β
(β β {0})βπ€ β β+ βπ β β+
βπ¦ β (β
β {0})((π₯((abs
β β ) βΎ ((β β {0}) Γ (β β
{0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€) |
61 | | cnxmet 24281 |
. . . . . . . . 9
β’ (abs
β β ) β (βMetββ) |
62 | | xmetres2 23859 |
. . . . . . . . 9
β’ (((abs
β β ) β (βMetββ) β§ (β β {0})
β β) β ((abs β β ) βΎ ((β β {0})
Γ (β β {0}))) β (βMetβ(β β
{0}))) |
63 | 61, 14, 62 | mp2an 691 |
. . . . . . . 8
β’ ((abs
β β ) βΎ ((β β {0}) Γ (β β
{0}))) β (βMetβ(β β {0})) |
64 | | eqid 2733 |
. . . . . . . . . . . 12
β’ ((abs
β β ) βΎ ((β β {0}) Γ (β β
{0}))) = ((abs β β ) βΎ ((β β {0}) Γ
(β β {0}))) |
65 | 10 | cnfldtopn 24290 |
. . . . . . . . . . . 12
β’ π½ = (MetOpenβ(abs β
β )) |
66 | | eqid 2733 |
. . . . . . . . . . . 12
β’
(MetOpenβ((abs β β ) βΎ ((β β {0})
Γ (β β {0})))) = (MetOpenβ((abs β β )
βΎ ((β β {0}) Γ (β β
{0})))) |
67 | 64, 65, 66 | metrest 24025 |
. . . . . . . . . . 11
β’ (((abs
β β ) β (βMetββ) β§ (β β {0})
β β) β (π½
βΎt (β β {0})) = (MetOpenβ((abs β
β ) βΎ ((β β {0}) Γ (β β
{0}))))) |
68 | 61, 14, 67 | mp2an 691 |
. . . . . . . . . 10
β’ (π½ βΎt (β
β {0})) = (MetOpenβ((abs β β ) βΎ ((β
β {0}) Γ (β β {0})))) |
69 | 13, 68 | eqtri 2761 |
. . . . . . . . 9
β’ πΎ = (MetOpenβ((abs β
β ) βΎ ((β β {0}) Γ (β β
{0})))) |
70 | 69, 65 | metcn 24044 |
. . . . . . . 8
β’ ((((abs
β β ) βΎ ((β β {0}) Γ (β β
{0}))) β (βMetβ(β β {0})) β§ (abs β
β ) β (βMetββ)) β ((π§ β (β β {0}) β¦ (1 /
π§)) β (πΎ Cn π½) β ((π§ β (β β {0}) β¦ (1 /
π§)):(β β
{0})βΆβ β§ βπ₯ β (β β {0})βπ€ β β+
βπ β
β+ βπ¦ β (β β {0})((π₯((abs β β ) βΎ
((β β {0}) Γ (β β {0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€)))) |
71 | 63, 61, 70 | mp2an 691 |
. . . . . . 7
β’ ((π§ β (β β {0})
β¦ (1 / π§)) β
(πΎ Cn π½) β ((π§ β (β β {0}) β¦ (1 /
π§)):(β β
{0})βΆβ β§ βπ₯ β (β β {0})βπ€ β β+
βπ β
β+ βπ¦ β (β β {0})((π₯((abs β β ) βΎ
((β β {0}) Γ (β β {0})))π¦) < π β (((π§ β (β β {0}) β¦ (1 /
π§))βπ₯)(abs β β )((π§ β (β β {0})
β¦ (1 / π§))βπ¦)) < π€))) |
72 | 24, 60, 71 | mpbir2an 710 |
. . . . . 6
β’ (π§ β (β β {0})
β¦ (1 / π§)) β
(πΎ Cn π½) |
73 | 72 | a1i 11 |
. . . . 5
β’ (β€
β (π§ β (β
β {0}) β¦ (1 / π§)) β (πΎ Cn π½)) |
74 | 12, 17, 19, 17, 73, 40 | cnmpt21 23167 |
. . . 4
β’ (β€
β (π₯ β β,
π¦ β (β β
{0}) β¦ (1 / π¦))
β ((π½
Γt πΎ) Cn
π½)) |
75 | 10 | mpomulcn 35151 |
. . . . 5
β’ (π’ β β, π£ β β β¦ (π’ Β· π£)) β ((π½ Γt π½) Cn π½) |
76 | 75 | a1i 11 |
. . . 4
β’ (β€
β (π’ β β,
π£ β β β¦
(π’ Β· π£)) β ((π½ Γt π½) Cn π½)) |
77 | | oveq12 7415 |
. . . 4
β’ ((π’ = π₯ β§ π£ = (1 / π¦)) β (π’ Β· π£) = (π₯ Β· (1 / π¦))) |
78 | 12, 17, 18, 74, 12, 12, 76, 77 | cnmpt22 23170 |
. . 3
β’ (β€
β (π₯ β β,
π¦ β (β β
{0}) β¦ (π₯ Β· (1
/ π¦))) β ((π½ Γt πΎ) Cn π½)) |
79 | 78 | mptru 1549 |
. 2
β’ (π₯ β β, π¦ β (β β {0})
β¦ (π₯ Β· (1 /
π¦))) β ((π½ Γt πΎ) Cn π½) |
80 | 9, 79 | eqeltri 2830 |
1
β’ / β
((π½ Γt
πΎ) Cn π½) |