Step | Hyp | Ref
| Expression |
1 | | limccnp2.h |
. . . . . . . . . . 11
β’ (π β π» β ((π½ CnP πΎ)ββ¨πΆ, π·β©)) |
2 | | eqid 2733 |
. . . . . . . . . . . 12
β’ βͺ π½ =
βͺ π½ |
3 | 2 | cnprcl 22741 |
. . . . . . . . . . 11
β’ (π» β ((π½ CnP πΎ)ββ¨πΆ, π·β©) β β¨πΆ, π·β© β βͺ
π½) |
4 | 1, 3 | syl 17 |
. . . . . . . . . 10
β’ (π β β¨πΆ, π·β© β βͺ
π½) |
5 | | limccnp2.j |
. . . . . . . . . . . 12
β’ π½ = ((πΎ Γt πΎ) βΎt (π Γ π)) |
6 | | limccnp2.k |
. . . . . . . . . . . . . . 15
β’ πΎ =
(TopOpenββfld) |
7 | 6 | cnfldtopon 24291 |
. . . . . . . . . . . . . 14
β’ πΎ β
(TopOnββ) |
8 | | txtopon 23087 |
. . . . . . . . . . . . . 14
β’ ((πΎ β (TopOnββ)
β§ πΎ β
(TopOnββ)) β (πΎ Γt πΎ) β (TopOnβ(β Γ
β))) |
9 | 7, 7, 8 | mp2an 691 |
. . . . . . . . . . . . 13
β’ (πΎ Γt πΎ) β (TopOnβ(β
Γ β)) |
10 | | limccnp2.x |
. . . . . . . . . . . . . 14
β’ (π β π β β) |
11 | | limccnp2.y |
. . . . . . . . . . . . . 14
β’ (π β π β β) |
12 | | xpss12 5691 |
. . . . . . . . . . . . . 14
β’ ((π β β β§ π β β) β (π Γ π) β (β Γ
β)) |
13 | 10, 11, 12 | syl2anc 585 |
. . . . . . . . . . . . 13
β’ (π β (π Γ π) β (β Γ
β)) |
14 | | resttopon 22657 |
. . . . . . . . . . . . 13
β’ (((πΎ Γt πΎ) β (TopOnβ(β
Γ β)) β§ (π
Γ π) β (β
Γ β)) β ((πΎ Γt πΎ) βΎt (π Γ π)) β (TopOnβ(π Γ π))) |
15 | 9, 13, 14 | sylancr 588 |
. . . . . . . . . . . 12
β’ (π β ((πΎ Γt πΎ) βΎt (π Γ π)) β (TopOnβ(π Γ π))) |
16 | 5, 15 | eqeltrid 2838 |
. . . . . . . . . . 11
β’ (π β π½ β (TopOnβ(π Γ π))) |
17 | | toponuni 22408 |
. . . . . . . . . . 11
β’ (π½ β (TopOnβ(π Γ π)) β (π Γ π) = βͺ π½) |
18 | 16, 17 | syl 17 |
. . . . . . . . . 10
β’ (π β (π Γ π) = βͺ π½) |
19 | 4, 18 | eleqtrrd 2837 |
. . . . . . . . 9
β’ (π β β¨πΆ, π·β© β (π Γ π)) |
20 | | opelxp 5712 |
. . . . . . . . 9
β’
(β¨πΆ, π·β© β (π Γ π) β (πΆ β π β§ π· β π)) |
21 | 19, 20 | sylib 217 |
. . . . . . . 8
β’ (π β (πΆ β π β§ π· β π)) |
22 | 21 | simpld 496 |
. . . . . . 7
β’ (π β πΆ β π) |
23 | 22 | ad2antrr 725 |
. . . . . 6
β’ (((π β§ π₯ β (π΄ βͺ {π΅})) β§ π₯ = π΅) β πΆ β π) |
24 | | simpll 766 |
. . . . . . 7
β’ (((π β§ π₯ β (π΄ βͺ {π΅})) β§ Β¬ π₯ = π΅) β π) |
25 | | simpr 486 |
. . . . . . . . . . . 12
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β π₯ β (π΄ βͺ {π΅})) |
26 | | elun 4148 |
. . . . . . . . . . . 12
β’ (π₯ β (π΄ βͺ {π΅}) β (π₯ β π΄ β¨ π₯ β {π΅})) |
27 | 25, 26 | sylib 217 |
. . . . . . . . . . 11
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β (π₯ β π΄ β¨ π₯ β {π΅})) |
28 | 27 | ord 863 |
. . . . . . . . . 10
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β (Β¬ π₯ β π΄ β π₯ β {π΅})) |
29 | | elsni 4645 |
. . . . . . . . . 10
β’ (π₯ β {π΅} β π₯ = π΅) |
30 | 28, 29 | syl6 35 |
. . . . . . . . 9
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β (Β¬ π₯ β π΄ β π₯ = π΅)) |
31 | 30 | con1d 145 |
. . . . . . . 8
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β (Β¬ π₯ = π΅ β π₯ β π΄)) |
32 | 31 | imp 408 |
. . . . . . 7
β’ (((π β§ π₯ β (π΄ βͺ {π΅})) β§ Β¬ π₯ = π΅) β π₯ β π΄) |
33 | | limccnp2.r |
. . . . . . 7
β’ ((π β§ π₯ β π΄) β π
β π) |
34 | 24, 32, 33 | syl2anc 585 |
. . . . . 6
β’ (((π β§ π₯ β (π΄ βͺ {π΅})) β§ Β¬ π₯ = π΅) β π
β π) |
35 | 23, 34 | ifclda 4563 |
. . . . 5
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β if(π₯ = π΅, πΆ, π
) β π) |
36 | 21 | simprd 497 |
. . . . . . 7
β’ (π β π· β π) |
37 | 36 | ad2antrr 725 |
. . . . . 6
β’ (((π β§ π₯ β (π΄ βͺ {π΅})) β§ π₯ = π΅) β π· β π) |
38 | | limccnp2.s |
. . . . . . 7
β’ ((π β§ π₯ β π΄) β π β π) |
39 | 24, 32, 38 | syl2anc 585 |
. . . . . 6
β’ (((π β§ π₯ β (π΄ βͺ {π΅})) β§ Β¬ π₯ = π΅) β π β π) |
40 | 37, 39 | ifclda 4563 |
. . . . 5
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β if(π₯ = π΅, π·, π) β π) |
41 | 35, 40 | opelxpd 5714 |
. . . 4
β’ ((π β§ π₯ β (π΄ βͺ {π΅})) β β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β© β (π Γ π)) |
42 | | eqidd 2734 |
. . . 4
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) = (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)) |
43 | 7 | a1i 11 |
. . . . . 6
β’ (π β πΎ β
(TopOnββ)) |
44 | | cnpf2 22746 |
. . . . . 6
β’ ((π½ β (TopOnβ(π Γ π)) β§ πΎ β (TopOnββ) β§ π» β ((π½ CnP πΎ)ββ¨πΆ, π·β©)) β π»:(π Γ π)βΆβ) |
45 | 16, 43, 1, 44 | syl3anc 1372 |
. . . . 5
β’ (π β π»:(π Γ π)βΆβ) |
46 | 45 | feqmptd 6958 |
. . . 4
β’ (π β π» = (π¦ β (π Γ π) β¦ (π»βπ¦))) |
47 | | fveq2 6889 |
. . . . 5
β’ (π¦ = β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β© β (π»βπ¦) = (π»ββ¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)) |
48 | | df-ov 7409 |
. . . . . 6
β’ (if(π₯ = π΅, πΆ, π
)π»if(π₯ = π΅, π·, π)) = (π»ββ¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) |
49 | | ovif12 7505 |
. . . . . 6
β’ (if(π₯ = π΅, πΆ, π
)π»if(π₯ = π΅, π·, π)) = if(π₯ = π΅, (πΆπ»π·), (π
π»π)) |
50 | 48, 49 | eqtr3i 2763 |
. . . . 5
β’ (π»ββ¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) = if(π₯ = π΅, (πΆπ»π·), (π
π»π)) |
51 | 47, 50 | eqtrdi 2789 |
. . . 4
β’ (π¦ = β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β© β (π»βπ¦) = if(π₯ = π΅, (πΆπ»π·), (π
π»π))) |
52 | 41, 42, 46, 51 | fmptco 7124 |
. . 3
β’ (π β (π» β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)) = (π₯ β (π΄ βͺ {π΅}) β¦ if(π₯ = π΅, (πΆπ»π·), (π
π»π)))) |
53 | | eqid 2733 |
. . . . . . . . . . 11
β’ (π₯ β π΄ β¦ π
) = (π₯ β π΄ β¦ π
) |
54 | 53, 33 | dmmptd 6693 |
. . . . . . . . . 10
β’ (π β dom (π₯ β π΄ β¦ π
) = π΄) |
55 | | limccnp2.c |
. . . . . . . . . . . 12
β’ (π β πΆ β ((π₯ β π΄ β¦ π
) limβ π΅)) |
56 | | limcrcl 25383 |
. . . . . . . . . . . 12
β’ (πΆ β ((π₯ β π΄ β¦ π
) limβ π΅) β ((π₯ β π΄ β¦ π
):dom (π₯ β π΄ β¦ π
)βΆβ β§ dom (π₯ β π΄ β¦ π
) β β β§ π΅ β β)) |
57 | 55, 56 | syl 17 |
. . . . . . . . . . 11
β’ (π β ((π₯ β π΄ β¦ π
):dom (π₯ β π΄ β¦ π
)βΆβ β§ dom (π₯ β π΄ β¦ π
) β β β§ π΅ β β)) |
58 | 57 | simp2d 1144 |
. . . . . . . . . 10
β’ (π β dom (π₯ β π΄ β¦ π
) β β) |
59 | 54, 58 | eqsstrrd 4021 |
. . . . . . . . 9
β’ (π β π΄ β β) |
60 | 57 | simp3d 1145 |
. . . . . . . . . 10
β’ (π β π΅ β β) |
61 | 60 | snssd 4812 |
. . . . . . . . 9
β’ (π β {π΅} β β) |
62 | 59, 61 | unssd 4186 |
. . . . . . . 8
β’ (π β (π΄ βͺ {π΅}) β β) |
63 | | resttopon 22657 |
. . . . . . . 8
β’ ((πΎ β (TopOnββ)
β§ (π΄ βͺ {π΅}) β β) β
(πΎ βΎt
(π΄ βͺ {π΅})) β (TopOnβ(π΄ βͺ {π΅}))) |
64 | 7, 62, 63 | sylancr 588 |
. . . . . . 7
β’ (π β (πΎ βΎt (π΄ βͺ {π΅})) β (TopOnβ(π΄ βͺ {π΅}))) |
65 | | ssun2 4173 |
. . . . . . . 8
β’ {π΅} β (π΄ βͺ {π΅}) |
66 | | snssg 4787 |
. . . . . . . . 9
β’ (π΅ β β β (π΅ β (π΄ βͺ {π΅}) β {π΅} β (π΄ βͺ {π΅}))) |
67 | 60, 66 | syl 17 |
. . . . . . . 8
β’ (π β (π΅ β (π΄ βͺ {π΅}) β {π΅} β (π΄ βͺ {π΅}))) |
68 | 65, 67 | mpbiri 258 |
. . . . . . 7
β’ (π β π΅ β (π΄ βͺ {π΅})) |
69 | 10 | adantr 482 |
. . . . . . . . . 10
β’ ((π β§ π₯ β π΄) β π β β) |
70 | 69, 33 | sseldd 3983 |
. . . . . . . . 9
β’ ((π β§ π₯ β π΄) β π
β β) |
71 | | eqid 2733 |
. . . . . . . . 9
β’ (πΎ βΎt (π΄ βͺ {π΅})) = (πΎ βΎt (π΄ βͺ {π΅})) |
72 | 59, 60, 70, 71, 6 | limcmpt 25392 |
. . . . . . . 8
β’ (π β (πΆ β ((π₯ β π΄ β¦ π
) limβ π΅) β (π₯ β (π΄ βͺ {π΅}) β¦ if(π₯ = π΅, πΆ, π
)) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅))) |
73 | 55, 72 | mpbid 231 |
. . . . . . 7
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ if(π₯ = π΅, πΆ, π
)) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅)) |
74 | | limccnp2.d |
. . . . . . . 8
β’ (π β π· β ((π₯ β π΄ β¦ π) limβ π΅)) |
75 | 11 | adantr 482 |
. . . . . . . . . 10
β’ ((π β§ π₯ β π΄) β π β β) |
76 | 75, 38 | sseldd 3983 |
. . . . . . . . 9
β’ ((π β§ π₯ β π΄) β π β β) |
77 | 59, 60, 76, 71, 6 | limcmpt 25392 |
. . . . . . . 8
β’ (π β (π· β ((π₯ β π΄ β¦ π) limβ π΅) β (π₯ β (π΄ βͺ {π΅}) β¦ if(π₯ = π΅, π·, π)) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅))) |
78 | 74, 77 | mpbid 231 |
. . . . . . 7
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ if(π₯ = π΅, π·, π)) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅)) |
79 | 64, 43, 43, 68, 73, 78 | txcnp 23116 |
. . . . . 6
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP (πΎ Γt πΎ))βπ΅)) |
80 | 9 | topontopi 22409 |
. . . . . . . 8
β’ (πΎ Γt πΎ) β Top |
81 | 80 | a1i 11 |
. . . . . . 7
β’ (π β (πΎ Γt πΎ) β Top) |
82 | 41 | fmpttd 7112 |
. . . . . . . 8
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©):(π΄ βͺ {π΅})βΆ(π Γ π)) |
83 | | toponuni 22408 |
. . . . . . . . . 10
β’ ((πΎ βΎt (π΄ βͺ {π΅})) β (TopOnβ(π΄ βͺ {π΅})) β (π΄ βͺ {π΅}) = βͺ (πΎ βΎt (π΄ βͺ {π΅}))) |
84 | 64, 83 | syl 17 |
. . . . . . . . 9
β’ (π β (π΄ βͺ {π΅}) = βͺ (πΎ βΎt (π΄ βͺ {π΅}))) |
85 | 84 | feq2d 6701 |
. . . . . . . 8
β’ (π β ((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©):(π΄ βͺ {π΅})βΆ(π Γ π) β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©):βͺ (πΎ βΎt (π΄ βͺ {π΅}))βΆ(π Γ π))) |
86 | 82, 85 | mpbid 231 |
. . . . . . 7
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©):βͺ (πΎ βΎt (π΄ βͺ {π΅}))βΆ(π Γ π)) |
87 | | eqid 2733 |
. . . . . . . 8
β’ βͺ (πΎ
βΎt (π΄
βͺ {π΅})) = βͺ (πΎ
βΎt (π΄
βͺ {π΅})) |
88 | 9 | toponunii 22410 |
. . . . . . . 8
β’ (β
Γ β) = βͺ (πΎ Γt πΎ) |
89 | 87, 88 | cnprest2 22786 |
. . . . . . 7
β’ (((πΎ Γt πΎ) β Top β§ (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©):βͺ (πΎ βΎt (π΄ βͺ {π΅}))βΆ(π Γ π) β§ (π Γ π) β (β Γ β)) β
((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP (πΎ Γt πΎ))βπ΅) β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP ((πΎ Γt πΎ) βΎt (π Γ π)))βπ΅))) |
90 | 81, 86, 13, 89 | syl3anc 1372 |
. . . . . 6
β’ (π β ((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP (πΎ Γt πΎ))βπ΅) β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP ((πΎ Γt πΎ) βΎt (π Γ π)))βπ΅))) |
91 | 79, 90 | mpbid 231 |
. . . . 5
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP ((πΎ Γt πΎ) βΎt (π Γ π)))βπ΅)) |
92 | 5 | oveq2i 7417 |
. . . . . 6
β’ ((πΎ βΎt (π΄ βͺ {π΅})) CnP π½) = ((πΎ βΎt (π΄ βͺ {π΅})) CnP ((πΎ Γt πΎ) βΎt (π Γ π))) |
93 | 92 | fveq1i 6890 |
. . . . 5
β’ (((πΎ βΎt (π΄ βͺ {π΅})) CnP π½)βπ΅) = (((πΎ βΎt (π΄ βͺ {π΅})) CnP ((πΎ Γt πΎ) βΎt (π Γ π)))βπ΅) |
94 | 91, 93 | eleqtrrdi 2845 |
. . . 4
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP π½)βπ΅)) |
95 | | iftrue 4534 |
. . . . . . . . 9
β’ (π₯ = π΅ β if(π₯ = π΅, πΆ, π
) = πΆ) |
96 | | iftrue 4534 |
. . . . . . . . 9
β’ (π₯ = π΅ β if(π₯ = π΅, π·, π) = π·) |
97 | 95, 96 | opeq12d 4881 |
. . . . . . . 8
β’ (π₯ = π΅ β β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β© = β¨πΆ, π·β©) |
98 | | eqid 2733 |
. . . . . . . 8
β’ (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) = (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) |
99 | | opex 5464 |
. . . . . . . 8
β’
β¨πΆ, π·β© β V |
100 | 97, 98, 99 | fvmpt 6996 |
. . . . . . 7
β’ (π΅ β (π΄ βͺ {π΅}) β ((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)βπ΅) = β¨πΆ, π·β©) |
101 | 68, 100 | syl 17 |
. . . . . 6
β’ (π β ((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)βπ΅) = β¨πΆ, π·β©) |
102 | 101 | fveq2d 6893 |
. . . . 5
β’ (π β ((π½ CnP πΎ)β((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)βπ΅)) = ((π½ CnP πΎ)ββ¨πΆ, π·β©)) |
103 | 1, 102 | eleqtrrd 2837 |
. . . 4
β’ (π β π» β ((π½ CnP πΎ)β((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)βπ΅))) |
104 | | cnpco 22763 |
. . . 4
β’ (((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP π½)βπ΅) β§ π» β ((π½ CnP πΎ)β((π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)βπ΅))) β (π» β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅)) |
105 | 94, 103, 104 | syl2anc 585 |
. . 3
β’ (π β (π» β (π₯ β (π΄ βͺ {π΅}) β¦ β¨if(π₯ = π΅, πΆ, π
), if(π₯ = π΅, π·, π)β©)) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅)) |
106 | 52, 105 | eqeltrrd 2835 |
. 2
β’ (π β (π₯ β (π΄ βͺ {π΅}) β¦ if(π₯ = π΅, (πΆπ»π·), (π
π»π))) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅)) |
107 | 45 | adantr 482 |
. . . 4
β’ ((π β§ π₯ β π΄) β π»:(π Γ π)βΆβ) |
108 | 107, 33, 38 | fovcdmd 7576 |
. . 3
β’ ((π β§ π₯ β π΄) β (π
π»π) β β) |
109 | 59, 60, 108, 71, 6 | limcmpt 25392 |
. 2
β’ (π β ((πΆπ»π·) β ((π₯ β π΄ β¦ (π
π»π)) limβ π΅) β (π₯ β (π΄ βͺ {π΅}) β¦ if(π₯ = π΅, (πΆπ»π·), (π
π»π))) β (((πΎ βΎt (π΄ βͺ {π΅})) CnP πΎ)βπ΅))) |
110 | 106, 109 | mpbird 257 |
1
β’ (π β (πΆπ»π·) β ((π₯ β π΄ β¦ (π
π»π)) limβ π΅)) |