Proof of Theorem dvreslem
Step | Hyp | Ref
| Expression |
1 | | difss 3737 |
. . . . . . . . . . . . . . 15
⊢ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ⊆ (𝐴 ∩ 𝐵) |
2 | | inss2 3834 |
. . . . . . . . . . . . . . 15
⊢ (𝐴 ∩ 𝐵) ⊆ 𝐵 |
3 | 1, 2 | sstri 3612 |
. . . . . . . . . . . . . 14
⊢ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ⊆ 𝐵 |
4 | | simpr 477 |
. . . . . . . . . . . . . 14
⊢ (((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) ∧ 𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥})) → 𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥})) |
5 | 3, 4 | sseldi 3601 |
. . . . . . . . . . . . 13
⊢ (((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) ∧ 𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥})) → 𝑧 ∈ 𝐵) |
6 | | fvres 6207 |
. . . . . . . . . . . . 13
⊢ (𝑧 ∈ 𝐵 → ((𝐹 ↾ 𝐵)‘𝑧) = (𝐹‘𝑧)) |
7 | 5, 6 | syl 17 |
. . . . . . . . . . . 12
⊢ (((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) ∧ 𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥})) → ((𝐹 ↾ 𝐵)‘𝑧) = (𝐹‘𝑧)) |
8 | | dvres.t |
. . . . . . . . . . . . . . . . . 18
⊢ 𝑇 = (𝐾 ↾t 𝑆) |
9 | | dvres.k |
. . . . . . . . . . . . . . . . . . . 20
⊢ 𝐾 =
(TopOpen‘ℂfld) |
10 | 9 | cnfldtop 22587 |
. . . . . . . . . . . . . . . . . . 19
⊢ 𝐾 ∈ Top |
11 | | dvres.s |
. . . . . . . . . . . . . . . . . . . 20
⊢ (𝜑 → 𝑆 ⊆ ℂ) |
12 | | cnex 10017 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ℂ
∈ V |
13 | | ssexg 4804 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((𝑆 ⊆ ℂ ∧ ℂ
∈ V) → 𝑆 ∈
V) |
14 | 11, 12, 13 | sylancl 694 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝜑 → 𝑆 ∈ V) |
15 | | resttop 20964 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((𝐾 ∈ Top ∧ 𝑆 ∈ V) → (𝐾 ↾t 𝑆) ∈ Top) |
16 | 10, 14, 15 | sylancr 695 |
. . . . . . . . . . . . . . . . . 18
⊢ (𝜑 → (𝐾 ↾t 𝑆) ∈ Top) |
17 | 8, 16 | syl5eqel 2705 |
. . . . . . . . . . . . . . . . 17
⊢ (𝜑 → 𝑇 ∈ Top) |
18 | | inss1 3833 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝐴 ∩ 𝐵) ⊆ 𝐴 |
19 | | dvres.a |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝜑 → 𝐴 ⊆ 𝑆) |
20 | 18, 19 | syl5ss 3614 |
. . . . . . . . . . . . . . . . . 18
⊢ (𝜑 → (𝐴 ∩ 𝐵) ⊆ 𝑆) |
21 | 9 | cnfldtopon 22586 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ 𝐾 ∈
(TopOn‘ℂ) |
22 | | resttopon 20965 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝐾 ∈ (TopOn‘ℂ)
∧ 𝑆 ⊆ ℂ)
→ (𝐾
↾t 𝑆)
∈ (TopOn‘𝑆)) |
23 | 21, 11, 22 | sylancr 695 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (𝜑 → (𝐾 ↾t 𝑆) ∈ (TopOn‘𝑆)) |
24 | 8, 23 | syl5eqel 2705 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝜑 → 𝑇 ∈ (TopOn‘𝑆)) |
25 | | toponuni 20719 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝑇 ∈ (TopOn‘𝑆) → 𝑆 = ∪ 𝑇) |
26 | 24, 25 | syl 17 |
. . . . . . . . . . . . . . . . . 18
⊢ (𝜑 → 𝑆 = ∪ 𝑇) |
27 | 20, 26 | sseqtrd 3641 |
. . . . . . . . . . . . . . . . 17
⊢ (𝜑 → (𝐴 ∩ 𝐵) ⊆ ∪ 𝑇) |
28 | | eqid 2622 |
. . . . . . . . . . . . . . . . . 18
⊢ ∪ 𝑇 =
∪ 𝑇 |
29 | 28 | ntrss2 20861 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝑇 ∈ Top ∧ (𝐴 ∩ 𝐵) ⊆ ∪ 𝑇) → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ (𝐴 ∩ 𝐵)) |
30 | 17, 27, 29 | syl2anc 693 |
. . . . . . . . . . . . . . . 16
⊢ (𝜑 → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ (𝐴 ∩ 𝐵)) |
31 | 30, 2 | syl6ss 3615 |
. . . . . . . . . . . . . . 15
⊢ (𝜑 → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ 𝐵) |
32 | 31 | sselda 3603 |
. . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝑥 ∈ 𝐵) |
33 | | fvres 6207 |
. . . . . . . . . . . . . 14
⊢ (𝑥 ∈ 𝐵 → ((𝐹 ↾ 𝐵)‘𝑥) = (𝐹‘𝑥)) |
34 | 32, 33 | syl 17 |
. . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((𝐹 ↾ 𝐵)‘𝑥) = (𝐹‘𝑥)) |
35 | 34 | adantr 481 |
. . . . . . . . . . . 12
⊢ (((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) ∧ 𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥})) → ((𝐹 ↾ 𝐵)‘𝑥) = (𝐹‘𝑥)) |
36 | 7, 35 | oveq12d 6668 |
. . . . . . . . . . 11
⊢ (((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) ∧ 𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥})) → (((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) = ((𝐹‘𝑧) − (𝐹‘𝑥))) |
37 | 36 | oveq1d 6665 |
. . . . . . . . . 10
⊢ (((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) ∧ 𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥})) → ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥)) = (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥))) |
38 | 37 | mpteq2dva 4744 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) = (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥)))) |
39 | | dvres.g |
. . . . . . . . . . 11
⊢ 𝐺 = (𝑧 ∈ (𝐴 ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥))) |
40 | 39 | reseq1i 5392 |
. . . . . . . . . 10
⊢ (𝐺 ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥})) = ((𝑧 ∈ (𝐴 ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥))) ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥})) |
41 | | ssdif 3745 |
. . . . . . . . . . 11
⊢ ((𝐴 ∩ 𝐵) ⊆ 𝐴 → ((𝐴 ∩ 𝐵) ∖ {𝑥}) ⊆ (𝐴 ∖ {𝑥})) |
42 | | resmpt 5449 |
. . . . . . . . . . 11
⊢ (((𝐴 ∩ 𝐵) ∖ {𝑥}) ⊆ (𝐴 ∖ {𝑥}) → ((𝑧 ∈ (𝐴 ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥))) ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥})) = (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥)))) |
43 | 18, 41, 42 | mp2b 10 |
. . . . . . . . . 10
⊢ ((𝑧 ∈ (𝐴 ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥))) ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥})) = (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥))) |
44 | 40, 43 | eqtri 2644 |
. . . . . . . . 9
⊢ (𝐺 ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥})) = (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥))) |
45 | 38, 44 | syl6eqr 2674 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) = (𝐺 ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥}))) |
46 | 45 | oveq1d 6665 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) limℂ 𝑥) = ((𝐺 ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥})) limℂ 𝑥)) |
47 | | dvres.f |
. . . . . . . . . . 11
⊢ (𝜑 → 𝐹:𝐴⟶ℂ) |
48 | 47 | adantr 481 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝐹:𝐴⟶ℂ) |
49 | 19, 11 | sstrd 3613 |
. . . . . . . . . . 11
⊢ (𝜑 → 𝐴 ⊆ ℂ) |
50 | 49 | adantr 481 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝐴 ⊆ ℂ) |
51 | 30, 18 | syl6ss 3615 |
. . . . . . . . . . 11
⊢ (𝜑 → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ 𝐴) |
52 | 51 | sselda 3603 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝑥 ∈ 𝐴) |
53 | 48, 50, 52 | dvlem 23660 |
. . . . . . . . 9
⊢ (((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) ∧ 𝑧 ∈ (𝐴 ∖ {𝑥})) → (((𝐹‘𝑧) − (𝐹‘𝑥)) / (𝑧 − 𝑥)) ∈ ℂ) |
54 | 53, 39 | fmptd 6385 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝐺:(𝐴 ∖ {𝑥})⟶ℂ) |
55 | 18, 41 | mp1i 13 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((𝐴 ∩ 𝐵) ∖ {𝑥}) ⊆ (𝐴 ∖ {𝑥})) |
56 | | difss 3737 |
. . . . . . . . 9
⊢ (𝐴 ∖ {𝑥}) ⊆ 𝐴 |
57 | 56, 50 | syl5ss 3614 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (𝐴 ∖ {𝑥}) ⊆ ℂ) |
58 | | eqid 2622 |
. . . . . . . 8
⊢ (𝐾 ↾t ((𝐴 ∖ {𝑥}) ∪ {𝑥})) = (𝐾 ↾t ((𝐴 ∖ {𝑥}) ∪ {𝑥})) |
59 | | difssd 3738 |
. . . . . . . . . . . . . 14
⊢ (𝜑 → (∪ 𝑇
∖ 𝐴) ⊆ ∪ 𝑇) |
60 | 27, 59 | unssd 3789 |
. . . . . . . . . . . . 13
⊢ (𝜑 → ((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴)) ⊆ ∪
𝑇) |
61 | | ssun1 3776 |
. . . . . . . . . . . . . 14
⊢ (𝐴 ∩ 𝐵) ⊆ ((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴)) |
62 | 61 | a1i 11 |
. . . . . . . . . . . . 13
⊢ (𝜑 → (𝐴 ∩ 𝐵) ⊆ ((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴))) |
63 | 28 | ntrss 20859 |
. . . . . . . . . . . . 13
⊢ ((𝑇 ∈ Top ∧ ((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴)) ⊆ ∪
𝑇 ∧ (𝐴 ∩ 𝐵) ⊆ ((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴))) → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ ((int‘𝑇)‘((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴)))) |
64 | 17, 60, 62, 63 | syl3anc 1326 |
. . . . . . . . . . . 12
⊢ (𝜑 → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ ((int‘𝑇)‘((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴)))) |
65 | 64, 51 | ssind 3837 |
. . . . . . . . . . 11
⊢ (𝜑 → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ (((int‘𝑇)‘((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴))) ∩ 𝐴)) |
66 | 19, 26 | sseqtrd 3641 |
. . . . . . . . . . . . 13
⊢ (𝜑 → 𝐴 ⊆ ∪ 𝑇) |
67 | 18 | a1i 11 |
. . . . . . . . . . . . 13
⊢ (𝜑 → (𝐴 ∩ 𝐵) ⊆ 𝐴) |
68 | | eqid 2622 |
. . . . . . . . . . . . . 14
⊢ (𝑇 ↾t 𝐴) = (𝑇 ↾t 𝐴) |
69 | 28, 68 | restntr 20986 |
. . . . . . . . . . . . 13
⊢ ((𝑇 ∈ Top ∧ 𝐴 ⊆ ∪ 𝑇
∧ (𝐴 ∩ 𝐵) ⊆ 𝐴) → ((int‘(𝑇 ↾t 𝐴))‘(𝐴 ∩ 𝐵)) = (((int‘𝑇)‘((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴))) ∩ 𝐴)) |
70 | 17, 66, 67, 69 | syl3anc 1326 |
. . . . . . . . . . . 12
⊢ (𝜑 → ((int‘(𝑇 ↾t 𝐴))‘(𝐴 ∩ 𝐵)) = (((int‘𝑇)‘((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴))) ∩ 𝐴)) |
71 | 8 | oveq1i 6660 |
. . . . . . . . . . . . . . 15
⊢ (𝑇 ↾t 𝐴) = ((𝐾 ↾t 𝑆) ↾t 𝐴) |
72 | 10 | a1i 11 |
. . . . . . . . . . . . . . . 16
⊢ (𝜑 → 𝐾 ∈ Top) |
73 | | restabs 20969 |
. . . . . . . . . . . . . . . 16
⊢ ((𝐾 ∈ Top ∧ 𝐴 ⊆ 𝑆 ∧ 𝑆 ∈ V) → ((𝐾 ↾t 𝑆) ↾t 𝐴) = (𝐾 ↾t 𝐴)) |
74 | 72, 19, 14, 73 | syl3anc 1326 |
. . . . . . . . . . . . . . 15
⊢ (𝜑 → ((𝐾 ↾t 𝑆) ↾t 𝐴) = (𝐾 ↾t 𝐴)) |
75 | 71, 74 | syl5eq 2668 |
. . . . . . . . . . . . . 14
⊢ (𝜑 → (𝑇 ↾t 𝐴) = (𝐾 ↾t 𝐴)) |
76 | 75 | fveq2d 6195 |
. . . . . . . . . . . . 13
⊢ (𝜑 → (int‘(𝑇 ↾t 𝐴)) = (int‘(𝐾 ↾t 𝐴))) |
77 | 76 | fveq1d 6193 |
. . . . . . . . . . . 12
⊢ (𝜑 → ((int‘(𝑇 ↾t 𝐴))‘(𝐴 ∩ 𝐵)) = ((int‘(𝐾 ↾t 𝐴))‘(𝐴 ∩ 𝐵))) |
78 | 70, 77 | eqtr3d 2658 |
. . . . . . . . . . 11
⊢ (𝜑 → (((int‘𝑇)‘((𝐴 ∩ 𝐵) ∪ (∪ 𝑇 ∖ 𝐴))) ∩ 𝐴) = ((int‘(𝐾 ↾t 𝐴))‘(𝐴 ∩ 𝐵))) |
79 | 65, 78 | sseqtrd 3641 |
. . . . . . . . . 10
⊢ (𝜑 → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ⊆ ((int‘(𝐾 ↾t 𝐴))‘(𝐴 ∩ 𝐵))) |
80 | 79 | sselda 3603 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝑥 ∈ ((int‘(𝐾 ↾t 𝐴))‘(𝐴 ∩ 𝐵))) |
81 | | undif1 4043 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∖ {𝑥}) ∪ {𝑥}) = (𝐴 ∪ {𝑥}) |
82 | 30 | sselda 3603 |
. . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝑥 ∈ (𝐴 ∩ 𝐵)) |
83 | 82 | snssd 4340 |
. . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → {𝑥} ⊆ (𝐴 ∩ 𝐵)) |
84 | 83, 18 | syl6ss 3615 |
. . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → {𝑥} ⊆ 𝐴) |
85 | | ssequn2 3786 |
. . . . . . . . . . . . . 14
⊢ ({𝑥} ⊆ 𝐴 ↔ (𝐴 ∪ {𝑥}) = 𝐴) |
86 | 84, 85 | sylib 208 |
. . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (𝐴 ∪ {𝑥}) = 𝐴) |
87 | 81, 86 | syl5eq 2668 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((𝐴 ∖ {𝑥}) ∪ {𝑥}) = 𝐴) |
88 | 87 | oveq2d 6666 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (𝐾 ↾t ((𝐴 ∖ {𝑥}) ∪ {𝑥})) = (𝐾 ↾t 𝐴)) |
89 | 88 | fveq2d 6195 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (int‘(𝐾 ↾t ((𝐴 ∖ {𝑥}) ∪ {𝑥}))) = (int‘(𝐾 ↾t 𝐴))) |
90 | | undif1 4043 |
. . . . . . . . . . 11
⊢ (((𝐴 ∩ 𝐵) ∖ {𝑥}) ∪ {𝑥}) = ((𝐴 ∩ 𝐵) ∪ {𝑥}) |
91 | | ssequn2 3786 |
. . . . . . . . . . . 12
⊢ ({𝑥} ⊆ (𝐴 ∩ 𝐵) ↔ ((𝐴 ∩ 𝐵) ∪ {𝑥}) = (𝐴 ∩ 𝐵)) |
92 | 83, 91 | sylib 208 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((𝐴 ∩ 𝐵) ∪ {𝑥}) = (𝐴 ∩ 𝐵)) |
93 | 90, 92 | syl5eq 2668 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (((𝐴 ∩ 𝐵) ∖ {𝑥}) ∪ {𝑥}) = (𝐴 ∩ 𝐵)) |
94 | 89, 93 | fveq12d 6197 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((int‘(𝐾 ↾t ((𝐴 ∖ {𝑥}) ∪ {𝑥})))‘(((𝐴 ∩ 𝐵) ∖ {𝑥}) ∪ {𝑥})) = ((int‘(𝐾 ↾t 𝐴))‘(𝐴 ∩ 𝐵))) |
95 | 80, 94 | eleqtrrd 2704 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → 𝑥 ∈ ((int‘(𝐾 ↾t ((𝐴 ∖ {𝑥}) ∪ {𝑥})))‘(((𝐴 ∩ 𝐵) ∖ {𝑥}) ∪ {𝑥}))) |
96 | 54, 55, 57, 9, 58, 95 | limcres 23650 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((𝐺 ↾ ((𝐴 ∩ 𝐵) ∖ {𝑥})) limℂ 𝑥) = (𝐺 limℂ 𝑥)) |
97 | 46, 96 | eqtrd 2656 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → ((𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) limℂ 𝑥) = (𝐺 limℂ 𝑥)) |
98 | 97 | eleq2d 2687 |
. . . . 5
⊢ ((𝜑 ∧ 𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵))) → (𝑦 ∈ ((𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) limℂ 𝑥) ↔ 𝑦 ∈ (𝐺 limℂ 𝑥))) |
99 | 98 | pm5.32da 673 |
. . . 4
⊢ (𝜑 → ((𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ∧ 𝑦 ∈ ((𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) limℂ 𝑥)) ↔ (𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)))) |
100 | | dvres.b |
. . . . . . . . 9
⊢ (𝜑 → 𝐵 ⊆ 𝑆) |
101 | 100, 26 | sseqtrd 3641 |
. . . . . . . 8
⊢ (𝜑 → 𝐵 ⊆ ∪ 𝑇) |
102 | 28 | ntrin 20865 |
. . . . . . . 8
⊢ ((𝑇 ∈ Top ∧ 𝐴 ⊆ ∪ 𝑇
∧ 𝐵 ⊆ ∪ 𝑇)
→ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) = (((int‘𝑇)‘𝐴) ∩ ((int‘𝑇)‘𝐵))) |
103 | 17, 66, 101, 102 | syl3anc 1326 |
. . . . . . 7
⊢ (𝜑 → ((int‘𝑇)‘(𝐴 ∩ 𝐵)) = (((int‘𝑇)‘𝐴) ∩ ((int‘𝑇)‘𝐵))) |
104 | 103 | eleq2d 2687 |
. . . . . 6
⊢ (𝜑 → (𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ↔ 𝑥 ∈ (((int‘𝑇)‘𝐴) ∩ ((int‘𝑇)‘𝐵)))) |
105 | | elin 3796 |
. . . . . 6
⊢ (𝑥 ∈ (((int‘𝑇)‘𝐴) ∩ ((int‘𝑇)‘𝐵)) ↔ (𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵))) |
106 | 104, 105 | syl6bb 276 |
. . . . 5
⊢ (𝜑 → (𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ↔ (𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)))) |
107 | 106 | anbi1d 741 |
. . . 4
⊢ (𝜑 → ((𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)) ↔ ((𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)))) |
108 | 99, 107 | bitrd 268 |
. . 3
⊢ (𝜑 → ((𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ∧ 𝑦 ∈ ((𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) limℂ 𝑥)) ↔ ((𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)))) |
109 | | an32 839 |
. . 3
⊢ (((𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)) ↔ ((𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵))) |
110 | 108, 109 | syl6bb 276 |
. 2
⊢ (𝜑 → ((𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ∧ 𝑦 ∈ ((𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) limℂ 𝑥)) ↔ ((𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)))) |
111 | | eqid 2622 |
. . 3
⊢ (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) = (𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) |
112 | | fresin 6073 |
. . . 4
⊢ (𝐹:𝐴⟶ℂ → (𝐹 ↾ 𝐵):(𝐴 ∩ 𝐵)⟶ℂ) |
113 | 47, 112 | syl 17 |
. . 3
⊢ (𝜑 → (𝐹 ↾ 𝐵):(𝐴 ∩ 𝐵)⟶ℂ) |
114 | 8, 9, 111, 11, 113, 20 | eldv 23662 |
. 2
⊢ (𝜑 → (𝑥(𝑆 D (𝐹 ↾ 𝐵))𝑦 ↔ (𝑥 ∈ ((int‘𝑇)‘(𝐴 ∩ 𝐵)) ∧ 𝑦 ∈ ((𝑧 ∈ ((𝐴 ∩ 𝐵) ∖ {𝑥}) ↦ ((((𝐹 ↾ 𝐵)‘𝑧) − ((𝐹 ↾ 𝐵)‘𝑥)) / (𝑧 − 𝑥))) limℂ 𝑥)))) |
115 | 8, 9, 39, 11, 47, 19 | eldv 23662 |
. . 3
⊢ (𝜑 → (𝑥(𝑆 D 𝐹)𝑦 ↔ (𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)))) |
116 | 115 | anbi1d 741 |
. 2
⊢ (𝜑 → ((𝑥(𝑆 D 𝐹)𝑦 ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)) ↔ ((𝑥 ∈ ((int‘𝑇)‘𝐴) ∧ 𝑦 ∈ (𝐺 limℂ 𝑥)) ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)))) |
117 | 110, 114,
116 | 3bitr4d 300 |
1
⊢ (𝜑 → (𝑥(𝑆 D (𝐹 ↾ 𝐵))𝑦 ↔ (𝑥(𝑆 D 𝐹)𝑦 ∧ 𝑥 ∈ ((int‘𝑇)‘𝐵)))) |