Step | Hyp | Ref
| Expression |
1 | | cantnfs.b |
. . 3
⊢ (𝜑 → 𝐵 ∈ On) |
2 | | eloni 6261 |
. . . . 5
⊢ (𝐵 ∈ On → Ord 𝐵) |
3 | | ordwe 6264 |
. . . . 5
⊢ (Ord
𝐵 → E We 𝐵) |
4 | | weso 5571 |
. . . . 5
⊢ ( E We
𝐵 → E Or 𝐵) |
5 | 1, 2, 3, 4 | 4syl 19 |
. . . 4
⊢ (𝜑 → E Or 𝐵) |
6 | | cnvso 6180 |
. . . 4
⊢ ( E Or
𝐵 ↔ ◡ E Or 𝐵) |
7 | 5, 6 | sylib 217 |
. . 3
⊢ (𝜑 → ◡ E Or 𝐵) |
8 | | cantnfs.a |
. . . 4
⊢ (𝜑 → 𝐴 ∈ On) |
9 | | eloni 6261 |
. . . 4
⊢ (𝐴 ∈ On → Ord 𝐴) |
10 | | ordwe 6264 |
. . . 4
⊢ (Ord
𝐴 → E We 𝐴) |
11 | | weso 5571 |
. . . 4
⊢ ( E We
𝐴 → E Or 𝐴) |
12 | 8, 9, 10, 11 | 4syl 19 |
. . 3
⊢ (𝜑 → E Or 𝐴) |
13 | | oemapval.t |
. . . . 5
⊢ 𝑇 = {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))} |
14 | | fvex 6769 |
. . . . . . . . 9
⊢ (𝑦‘𝑧) ∈ V |
15 | 14 | epeli 5488 |
. . . . . . . 8
⊢ ((𝑥‘𝑧) E (𝑦‘𝑧) ↔ (𝑥‘𝑧) ∈ (𝑦‘𝑧)) |
16 | | vex 3426 |
. . . . . . . . . . . 12
⊢ 𝑤 ∈ V |
17 | | vex 3426 |
. . . . . . . . . . . 12
⊢ 𝑧 ∈ V |
18 | 16, 17 | brcnv 5780 |
. . . . . . . . . . 11
⊢ (𝑤◡ E 𝑧 ↔ 𝑧 E 𝑤) |
19 | | epel 5489 |
. . . . . . . . . . 11
⊢ (𝑧 E 𝑤 ↔ 𝑧 ∈ 𝑤) |
20 | 18, 19 | bitri 274 |
. . . . . . . . . 10
⊢ (𝑤◡ E 𝑧 ↔ 𝑧 ∈ 𝑤) |
21 | 20 | imbi1i 349 |
. . . . . . . . 9
⊢ ((𝑤◡ E 𝑧 → (𝑥‘𝑤) = (𝑦‘𝑤)) ↔ (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))) |
22 | 21 | ralbii 3090 |
. . . . . . . 8
⊢
(∀𝑤 ∈
𝐵 (𝑤◡ E
𝑧 → (𝑥‘𝑤) = (𝑦‘𝑤)) ↔ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤))) |
23 | 15, 22 | anbi12i 626 |
. . . . . . 7
⊢ (((𝑥‘𝑧) E (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑤◡ E
𝑧 → (𝑥‘𝑤) = (𝑦‘𝑤))) ↔ ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))) |
24 | 23 | rexbii 3177 |
. . . . . 6
⊢
(∃𝑧 ∈
𝐵 ((𝑥‘𝑧) E (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑤◡ E
𝑧 → (𝑥‘𝑤) = (𝑦‘𝑤))) ↔ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))) |
25 | 24 | opabbii 5137 |
. . . . 5
⊢
{〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) E (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑤◡ E
𝑧 → (𝑥‘𝑤) = (𝑦‘𝑤)))} = {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))} |
26 | 13, 25 | eqtr4i 2769 |
. . . 4
⊢ 𝑇 = {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) E (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑤◡ E
𝑧 → (𝑥‘𝑤) = (𝑦‘𝑤)))} |
27 | | breq1 5073 |
. . . . 5
⊢ (𝑔 = 𝑥 → (𝑔 finSupp ∅ ↔ 𝑥 finSupp ∅)) |
28 | 27 | cbvrabv 3416 |
. . . 4
⊢ {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅} = {𝑥 ∈ (𝐴 ↑m 𝐵) ∣ 𝑥 finSupp ∅} |
29 | 26, 28 | wemapso2 9242 |
. . 3
⊢ ((𝐵 ∈ On ∧ ◡ E Or 𝐵 ∧ E Or 𝐴) → 𝑇 Or {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅}) |
30 | 1, 7, 12, 29 | syl3anc 1369 |
. 2
⊢ (𝜑 → 𝑇 Or {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅}) |
31 | | cantnfs.s |
. . . 4
⊢ 𝑆 = dom (𝐴 CNF 𝐵) |
32 | | eqid 2738 |
. . . . 5
⊢ {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅} = {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅} |
33 | 32, 8, 1 | cantnfdm 9352 |
. . . 4
⊢ (𝜑 → dom (𝐴 CNF 𝐵) = {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅}) |
34 | 31, 33 | eqtrid 2790 |
. . 3
⊢ (𝜑 → 𝑆 = {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅}) |
35 | | soeq2 5516 |
. . 3
⊢ (𝑆 = {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅} → (𝑇 Or 𝑆 ↔ 𝑇 Or {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅})) |
36 | 34, 35 | syl 17 |
. 2
⊢ (𝜑 → (𝑇 Or 𝑆 ↔ 𝑇 Or {𝑔 ∈ (𝐴 ↑m 𝐵) ∣ 𝑔 finSupp ∅})) |
37 | 30, 36 | mpbird 256 |
1
⊢ (𝜑 → 𝑇 Or 𝑆) |