Step | Hyp | Ref
| Expression |
1 | | cvmlift2.b |
. . . 4
⊢ 𝐵 = ∪
𝐶 |
2 | | cvmlift2.f |
. . . 4
⊢ (𝜑 → 𝐹 ∈ (𝐶 CovMap 𝐽)) |
3 | | cvmlift2.g |
. . . 4
⊢ (𝜑 → 𝐺 ∈ ((II ×t II) Cn
𝐽)) |
4 | | cvmlift2.p |
. . . 4
⊢ (𝜑 → 𝑃 ∈ 𝐵) |
5 | | cvmlift2.i |
. . . 4
⊢ (𝜑 → (𝐹‘𝑃) = (0𝐺0)) |
6 | | cvmlift2.h |
. . . 4
⊢ 𝐻 = (℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑧𝐺0)) ∧ (𝑓‘0) = 𝑃)) |
7 | | cvmlift2.k |
. . . 4
⊢ 𝐾 = (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ ((℩𝑓 ∈ (II Cn 𝐶)((𝐹 ∘ 𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻‘𝑥)))‘𝑦)) |
8 | | fveq2 6674 |
. . . . . 6
⊢ (𝑎 = 𝑧 → (((II ×t II) CnP
𝐶)‘𝑎) = (((II ×t II) CnP 𝐶)‘𝑧)) |
9 | 8 | eleq2d 2818 |
. . . . 5
⊢ (𝑎 = 𝑧 → (𝐾 ∈ (((II ×t II) CnP
𝐶)‘𝑎) ↔ 𝐾 ∈ (((II ×t II) CnP
𝐶)‘𝑧))) |
10 | 9 | cbvrabv 3393 |
. . . 4
⊢ {𝑎 ∈ ((0[,]1) ×
(0[,]1)) ∣ 𝐾 ∈
(((II ×t II) CnP 𝐶)‘𝑎)} = {𝑧 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑧)} |
11 | | sneq 4526 |
. . . . . . 7
⊢ (𝑧 = 𝑏 → {𝑧} = {𝑏}) |
12 | 11 | xpeq2d 5555 |
. . . . . 6
⊢ (𝑧 = 𝑏 → ((0[,]1) × {𝑧}) = ((0[,]1) × {𝑏})) |
13 | 12 | sseq1d 3908 |
. . . . 5
⊢ (𝑧 = 𝑏 → (((0[,]1) × {𝑧}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ ((0[,]1) × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)})) |
14 | 13 | cbvrabv 3393 |
. . . 4
⊢ {𝑧 ∈ (0[,]1) ∣ ((0[,]1)
× {𝑧}) ⊆ {𝑎 ∈ ((0[,]1) ×
(0[,]1)) ∣ 𝐾 ∈
(((II ×t II) CnP 𝐶)‘𝑎)}} = {𝑏 ∈ (0[,]1) ∣ ((0[,]1) ×
{𝑏}) ⊆ {𝑎 ∈ ((0[,]1) ×
(0[,]1)) ∣ 𝐾 ∈
(((II ×t II) CnP 𝐶)‘𝑎)}} |
15 | | simpr 488 |
. . . . . . 7
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → 𝑑 = 𝑡) |
16 | 15 | eleq1d 2817 |
. . . . . 6
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → (𝑑 ∈ (0[,]1) ↔ 𝑡 ∈ (0[,]1))) |
17 | | xpeq1 5539 |
. . . . . . . . . 10
⊢ (𝑣 = 𝑢 → (𝑣 × {𝑏}) = (𝑢 × {𝑏})) |
18 | 17 | sseq1d 3908 |
. . . . . . . . 9
⊢ (𝑣 = 𝑢 → ((𝑣 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)})) |
19 | | xpeq1 5539 |
. . . . . . . . . 10
⊢ (𝑣 = 𝑢 → (𝑣 × {𝑑}) = (𝑢 × {𝑑})) |
20 | 19 | sseq1d 3908 |
. . . . . . . . 9
⊢ (𝑣 = 𝑢 → ((𝑣 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)})) |
21 | 18, 20 | bibi12d 349 |
. . . . . . . 8
⊢ (𝑣 = 𝑢 → (((𝑣 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑣 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}) ↔ ((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}))) |
22 | 21 | cbvrexvw 3350 |
. . . . . . 7
⊢
(∃𝑣 ∈
((nei‘II)‘{𝑐})((𝑣 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑣 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}) ↔ ∃𝑢 ∈ ((nei‘II)‘{𝑐})((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)})) |
23 | | simpl 486 |
. . . . . . . . . 10
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → 𝑐 = 𝑟) |
24 | 23 | sneqd 4528 |
. . . . . . . . 9
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → {𝑐} = {𝑟}) |
25 | 24 | fveq2d 6678 |
. . . . . . . 8
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → ((nei‘II)‘{𝑐}) =
((nei‘II)‘{𝑟})) |
26 | 15 | sneqd 4528 |
. . . . . . . . . . 11
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → {𝑑} = {𝑡}) |
27 | 26 | xpeq2d 5555 |
. . . . . . . . . 10
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → (𝑢 × {𝑑}) = (𝑢 × {𝑡})) |
28 | 27 | sseq1d 3908 |
. . . . . . . . 9
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → ((𝑢 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑡}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)})) |
29 | 28 | bibi2d 346 |
. . . . . . . 8
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → (((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}) ↔ ((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑡}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}))) |
30 | 25, 29 | rexeqbidv 3305 |
. . . . . . 7
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → (∃𝑢 ∈ ((nei‘II)‘{𝑐})((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}) ↔ ∃𝑢 ∈ ((nei‘II)‘{𝑟})((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑡}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}))) |
31 | 22, 30 | syl5bb 286 |
. . . . . 6
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → (∃𝑣 ∈ ((nei‘II)‘{𝑐})((𝑣 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑣 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}) ↔ ∃𝑢 ∈ ((nei‘II)‘{𝑟})((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑡}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}))) |
32 | 16, 31 | anbi12d 634 |
. . . . 5
⊢ ((𝑐 = 𝑟 ∧ 𝑑 = 𝑡) → ((𝑑 ∈ (0[,]1) ∧ ∃𝑣 ∈
((nei‘II)‘{𝑐})((𝑣 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑣 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)})) ↔ (𝑡 ∈ (0[,]1) ∧ ∃𝑢 ∈
((nei‘II)‘{𝑟})((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑡}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)})))) |
33 | 32 | cbvopabv 5102 |
. . . 4
⊢
{〈𝑐, 𝑑〉 ∣ (𝑑 ∈ (0[,]1) ∧
∃𝑣 ∈
((nei‘II)‘{𝑐})((𝑣 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑣 × {𝑑}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}))} = {〈𝑟, 𝑡〉 ∣ (𝑡 ∈ (0[,]1) ∧ ∃𝑢 ∈
((nei‘II)‘{𝑟})((𝑢 × {𝑏}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)} ↔ (𝑢 × {𝑡}) ⊆ {𝑎 ∈ ((0[,]1) × (0[,]1)) ∣
𝐾 ∈ (((II
×t II) CnP 𝐶)‘𝑎)}))} |
34 | 1, 2, 3, 4, 5, 6, 7, 10, 14, 33 | cvmlift2lem12 32847 |
. . 3
⊢ (𝜑 → 𝐾 ∈ ((II ×t II) Cn
𝐶)) |
35 | 1, 2, 3, 4, 5, 6, 7 | cvmlift2lem7 32842 |
. . 3
⊢ (𝜑 → (𝐹 ∘ 𝐾) = 𝐺) |
36 | | 0elunit 12943 |
. . . . 5
⊢ 0 ∈
(0[,]1) |
37 | 1, 2, 3, 4, 5, 6, 7 | cvmlift2lem8 32843 |
. . . . 5
⊢ ((𝜑 ∧ 0 ∈ (0[,]1)) →
(0𝐾0) = (𝐻‘0)) |
38 | 36, 37 | mpan2 691 |
. . . 4
⊢ (𝜑 → (0𝐾0) = (𝐻‘0)) |
39 | 1, 2, 3, 4, 5, 6 | cvmlift2lem2 32837 |
. . . . 5
⊢ (𝜑 → (𝐻 ∈ (II Cn 𝐶) ∧ (𝐹 ∘ 𝐻) = (𝑧 ∈ (0[,]1) ↦ (𝑧𝐺0)) ∧ (𝐻‘0) = 𝑃)) |
40 | 39 | simp3d 1145 |
. . . 4
⊢ (𝜑 → (𝐻‘0) = 𝑃) |
41 | 38, 40 | eqtrd 2773 |
. . 3
⊢ (𝜑 → (0𝐾0) = 𝑃) |
42 | | coeq2 5701 |
. . . . . 6
⊢ (𝑔 = 𝐾 → (𝐹 ∘ 𝑔) = (𝐹 ∘ 𝐾)) |
43 | 42 | eqeq1d 2740 |
. . . . 5
⊢ (𝑔 = 𝐾 → ((𝐹 ∘ 𝑔) = 𝐺 ↔ (𝐹 ∘ 𝐾) = 𝐺)) |
44 | | oveq 7176 |
. . . . . 6
⊢ (𝑔 = 𝐾 → (0𝑔0) = (0𝐾0)) |
45 | 44 | eqeq1d 2740 |
. . . . 5
⊢ (𝑔 = 𝐾 → ((0𝑔0) = 𝑃 ↔ (0𝐾0) = 𝑃)) |
46 | 43, 45 | anbi12d 634 |
. . . 4
⊢ (𝑔 = 𝐾 → (((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃) ↔ ((𝐹 ∘ 𝐾) = 𝐺 ∧ (0𝐾0) = 𝑃))) |
47 | 46 | rspcev 3526 |
. . 3
⊢ ((𝐾 ∈ ((II ×t
II) Cn 𝐶) ∧ ((𝐹 ∘ 𝐾) = 𝐺 ∧ (0𝐾0) = 𝑃)) → ∃𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃)) |
48 | 34, 35, 41, 47 | syl12anc 836 |
. 2
⊢ (𝜑 → ∃𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃)) |
49 | | iitop 23632 |
. . . . 5
⊢ II ∈
Top |
50 | | iiuni 23633 |
. . . . 5
⊢ (0[,]1) =
∪ II |
51 | 49, 49, 50, 50 | txunii 22344 |
. . . 4
⊢ ((0[,]1)
× (0[,]1)) = ∪ (II ×t
II) |
52 | | iiconn 23639 |
. . . . . 6
⊢ II ∈
Conn |
53 | | txconn 22440 |
. . . . . 6
⊢ ((II
∈ Conn ∧ II ∈ Conn) → (II ×t II) ∈
Conn) |
54 | 52, 52, 53 | mp2an 692 |
. . . . 5
⊢ (II
×t II) ∈ Conn |
55 | 54 | a1i 11 |
. . . 4
⊢ (𝜑 → (II ×t
II) ∈ Conn) |
56 | | iinllyconn 32787 |
. . . . . 6
⊢ II ∈
𝑛-Locally Conn |
57 | | txconn 22440 |
. . . . . . 7
⊢ ((𝑥 ∈ Conn ∧ 𝑦 ∈ Conn) → (𝑥 ×t 𝑦) ∈ Conn) |
58 | 57 | txnlly 22388 |
. . . . . 6
⊢ ((II
∈ 𝑛-Locally Conn ∧ II ∈ 𝑛-Locally Conn) →
(II ×t II) ∈ 𝑛-Locally Conn) |
59 | 56, 56, 58 | mp2an 692 |
. . . . 5
⊢ (II
×t II) ∈ 𝑛-Locally Conn |
60 | 59 | a1i 11 |
. . . 4
⊢ (𝜑 → (II ×t
II) ∈ 𝑛-Locally Conn) |
61 | | opelxpi 5562 |
. . . . . 6
⊢ ((0
∈ (0[,]1) ∧ 0 ∈ (0[,]1)) → 〈0, 0〉 ∈ ((0[,]1)
× (0[,]1))) |
62 | 36, 36, 61 | mp2an 692 |
. . . . 5
⊢ 〈0,
0〉 ∈ ((0[,]1) × (0[,]1)) |
63 | 62 | a1i 11 |
. . . 4
⊢ (𝜑 → 〈0, 0〉 ∈
((0[,]1) × (0[,]1))) |
64 | | df-ov 7173 |
. . . . 5
⊢ (0𝐺0) = (𝐺‘〈0, 0〉) |
65 | 5, 64 | eqtrdi 2789 |
. . . 4
⊢ (𝜑 → (𝐹‘𝑃) = (𝐺‘〈0, 0〉)) |
66 | 1, 51, 2, 55, 60, 63, 3, 4, 65 | cvmliftmo 32817 |
. . 3
⊢ (𝜑 → ∃*𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (𝑔‘〈0, 0〉) = 𝑃)) |
67 | | df-ov 7173 |
. . . . . 6
⊢ (0𝑔0) = (𝑔‘〈0, 0〉) |
68 | 67 | eqeq1i 2743 |
. . . . 5
⊢ ((0𝑔0) = 𝑃 ↔ (𝑔‘〈0, 0〉) = 𝑃) |
69 | 68 | anbi2i 626 |
. . . 4
⊢ (((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃) ↔ ((𝐹 ∘ 𝑔) = 𝐺 ∧ (𝑔‘〈0, 0〉) = 𝑃)) |
70 | 69 | rmobii 3299 |
. . 3
⊢
(∃*𝑔 ∈
((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃) ↔ ∃*𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (𝑔‘〈0, 0〉) = 𝑃)) |
71 | 66, 70 | sylibr 237 |
. 2
⊢ (𝜑 → ∃*𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃)) |
72 | | reu5 3328 |
. 2
⊢
(∃!𝑔 ∈
((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃) ↔ (∃𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃) ∧ ∃*𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃))) |
73 | 48, 71, 72 | sylanbrc 586 |
1
⊢ (𝜑 → ∃!𝑔 ∈ ((II ×t II) Cn 𝐶)((𝐹 ∘ 𝑔) = 𝐺 ∧ (0𝑔0) = 𝑃)) |