Proof of Theorem canthwelem
| Step | Hyp | Ref
| Expression |
| 1 | | eqid 2739 |
. . . . . . . 8
⊢ 𝐵 = 𝐵 |
| 2 | | eqid 2739 |
. . . . . . . 8
⊢ (𝑊‘𝐵) = (𝑊‘𝐵) |
| 3 | 1, 2 | pm3.2i 471 |
. . . . . . 7
⊢ (𝐵 = 𝐵 ∧ (𝑊‘𝐵) = (𝑊‘𝐵)) |
| 4 | | canthwe.2 |
. . . . . . . 8
⊢ 𝑊 = {〈𝑥, 𝑟〉 ∣ ((𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥)) ∧ (𝑟 We 𝑥 ∧ ∀𝑦 ∈ 𝑥 [(◡𝑟 “ {𝑦}) / 𝑢](𝑢𝐹(𝑟 ∩ (𝑢 × 𝑢))) = 𝑦))} |
| 5 | | simpl 483 |
. . . . . . . 8
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐴 ∈ 𝑉) |
| 6 | | df-ov 7359 |
. . . . . . . . 9
⊢ (𝑥𝐹𝑟) = (𝐹‘〈𝑥, 𝑟〉) |
| 7 | | f1f 6723 |
. . . . . . . . . . 11
⊢ (𝐹:𝑂–1-1→𝐴 → 𝐹:𝑂⟶𝐴) |
| 8 | 7 | ad2antlr 733 |
. . . . . . . . . 10
⊢ (((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) ∧ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)) → 𝐹:𝑂⟶𝐴) |
| 9 | | opabidw 5466 |
. . . . . . . . . . . 12
⊢
(〈𝑥, 𝑟〉 ∈ {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)} ↔ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)) |
| 10 | 9 | bilanri 507 |
. . . . . . . . . . 11
⊢ (((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) ∧ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)) → 〈𝑥, 𝑟〉 ∈ {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)}) |
| 11 | | canthwe.1 |
. . . . . . . . . . 11
⊢ 𝑂 = {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)} |
| 12 | 10, 11 | eleqtrrdi 2850 |
. . . . . . . . . 10
⊢ (((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) ∧ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)) → 〈𝑥, 𝑟〉 ∈ 𝑂) |
| 13 | 8, 12 | ffvelcdmd 7026 |
. . . . . . . . 9
⊢ (((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) ∧ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)) → (𝐹‘〈𝑥, 𝑟〉) ∈ 𝐴) |
| 14 | 6, 13 | eqeltrid 2843 |
. . . . . . . 8
⊢ (((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) ∧ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)) → (𝑥𝐹𝑟) ∈ 𝐴) |
| 15 | | canthwe.3 |
. . . . . . . 8
⊢ 𝐵 = ∪
dom 𝑊 |
| 16 | 4, 5, 14, 15 | fpwwe2 10557 |
. . . . . . 7
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((𝐵𝑊(𝑊‘𝐵) ∧ (𝐵𝐹(𝑊‘𝐵)) ∈ 𝐵) ↔ (𝐵 = 𝐵 ∧ (𝑊‘𝐵) = (𝑊‘𝐵)))) |
| 17 | 3, 16 | mpbiri 259 |
. . . . . 6
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐵𝑊(𝑊‘𝐵) ∧ (𝐵𝐹(𝑊‘𝐵)) ∈ 𝐵)) |
| 18 | 17 | simprd 496 |
. . . . 5
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐵𝐹(𝑊‘𝐵)) ∈ 𝐵) |
| 19 | | canthwe.4 |
. . . . . . . . . 10
⊢ 𝐶 = (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) |
| 20 | 19, 19 | xpeq12i 5646 |
. . . . . . . . . . 11
⊢ (𝐶 × 𝐶) = ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) × (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})) |
| 21 | 20 | ineq2i 4146 |
. . . . . . . . . 10
⊢ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) = ((𝑊‘𝐵) ∩ ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) × (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}))) |
| 22 | 19, 21 | oveq12i 7368 |
. . . . . . . . 9
⊢ (𝐶𝐹((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) = ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})𝐹((𝑊‘𝐵) ∩ ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) × (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})))) |
| 23 | 17 | simpld 495 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐵𝑊(𝑊‘𝐵)) |
| 24 | 4, 5, 23 | fpwwe2lem3 10547 |
. . . . . . . . . 10
⊢ (((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) ∧ (𝐵𝐹(𝑊‘𝐵)) ∈ 𝐵) → ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})𝐹((𝑊‘𝐵) ∩ ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) × (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})))) = (𝐵𝐹(𝑊‘𝐵))) |
| 25 | 18, 24 | mpdan 693 |
. . . . . . . . 9
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})𝐹((𝑊‘𝐵) ∩ ((◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) × (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})))) = (𝐵𝐹(𝑊‘𝐵))) |
| 26 | 22, 25 | eqtrid 2786 |
. . . . . . . 8
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐶𝐹((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) = (𝐵𝐹(𝑊‘𝐵))) |
| 27 | | df-ov 7359 |
. . . . . . . 8
⊢ (𝐶𝐹((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) = (𝐹‘〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉) |
| 28 | | df-ov 7359 |
. . . . . . . 8
⊢ (𝐵𝐹(𝑊‘𝐵)) = (𝐹‘〈𝐵, (𝑊‘𝐵)〉) |
| 29 | 26, 27, 28 | 3eqtr3g 2797 |
. . . . . . 7
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐹‘〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉) = (𝐹‘〈𝐵, (𝑊‘𝐵)〉)) |
| 30 | | simpr 485 |
. . . . . . . 8
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐹:𝑂–1-1→𝐴) |
| 31 | | cnvimass 6034 |
. . . . . . . . . . . . 13
⊢ (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) ⊆ dom (𝑊‘𝐵) |
| 32 | 4, 5 | fpwwe2lem2 10546 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐵𝑊(𝑊‘𝐵) ↔ ((𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵)) ∧ ((𝑊‘𝐵) We 𝐵 ∧ ∀𝑦 ∈ 𝐵 [(◡(𝑊‘𝐵) “ {𝑦}) / 𝑢](𝑢𝐹((𝑊‘𝐵) ∩ (𝑢 × 𝑢))) = 𝑦)))) |
| 33 | 23, 32 | mpbid 233 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵)) ∧ ((𝑊‘𝐵) We 𝐵 ∧ ∀𝑦 ∈ 𝐵 [(◡(𝑊‘𝐵) “ {𝑦}) / 𝑢](𝑢𝐹((𝑊‘𝐵) ∩ (𝑢 × 𝑢))) = 𝑦))) |
| 34 | 33 | simpld 495 |
. . . . . . . . . . . . . . . 16
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵))) |
| 35 | 34 | simprd 496 |
. . . . . . . . . . . . . . 15
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝑊‘𝐵) ⊆ (𝐵 × 𝐵)) |
| 36 | | dmss 5844 |
. . . . . . . . . . . . . . 15
⊢ ((𝑊‘𝐵) ⊆ (𝐵 × 𝐵) → dom (𝑊‘𝐵) ⊆ dom (𝐵 × 𝐵)) |
| 37 | 35, 36 | syl 17 |
. . . . . . . . . . . . . 14
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → dom (𝑊‘𝐵) ⊆ dom (𝐵 × 𝐵)) |
| 38 | | dmxpss 6122 |
. . . . . . . . . . . . . 14
⊢ dom
(𝐵 × 𝐵) ⊆ 𝐵 |
| 39 | 37, 38 | sstrdi 3927 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → dom (𝑊‘𝐵) ⊆ 𝐵) |
| 40 | 31, 39 | sstrid 3926 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) ⊆ 𝐵) |
| 41 | 19, 40 | eqsstrid 3953 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐶 ⊆ 𝐵) |
| 42 | 34 | simpld 495 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐵 ⊆ 𝐴) |
| 43 | 41, 42 | sstrd 3925 |
. . . . . . . . . 10
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐶 ⊆ 𝐴) |
| 44 | | inss2 4166 |
. . . . . . . . . . 11
⊢ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) ⊆ (𝐶 × 𝐶) |
| 45 | 44 | a1i 11 |
. . . . . . . . . 10
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) ⊆ (𝐶 × 𝐶)) |
| 46 | 33 | simprd 496 |
. . . . . . . . . . . . 13
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((𝑊‘𝐵) We 𝐵 ∧ ∀𝑦 ∈ 𝐵 [(◡(𝑊‘𝐵) “ {𝑦}) / 𝑢](𝑢𝐹((𝑊‘𝐵) ∩ (𝑢 × 𝑢))) = 𝑦)) |
| 47 | 46 | simpld 495 |
. . . . . . . . . . . 12
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝑊‘𝐵) We 𝐵) |
| 48 | | wess 5604 |
. . . . . . . . . . . 12
⊢ (𝐶 ⊆ 𝐵 → ((𝑊‘𝐵) We 𝐵 → (𝑊‘𝐵) We 𝐶)) |
| 49 | 41, 47, 48 | sylc 65 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝑊‘𝐵) We 𝐶) |
| 50 | | weinxp 5703 |
. . . . . . . . . . 11
⊢ ((𝑊‘𝐵) We 𝐶 ↔ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) We 𝐶) |
| 51 | 49, 50 | sylib 219 |
. . . . . . . . . 10
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) We 𝐶) |
| 52 | | fvex 6840 |
. . . . . . . . . . . . . 14
⊢ (𝑊‘𝐵) ∈ V |
| 53 | 52 | cnvex 7865 |
. . . . . . . . . . . . 13
⊢ ◡(𝑊‘𝐵) ∈ V |
| 54 | 53 | imaex 7854 |
. . . . . . . . . . . 12
⊢ (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) ∈ V |
| 55 | 19, 54 | eqeltri 2835 |
. . . . . . . . . . 11
⊢ 𝐶 ∈ V |
| 56 | 52 | inex1 5245 |
. . . . . . . . . . 11
⊢ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) ∈ V |
| 57 | | simpl 483 |
. . . . . . . . . . . . 13
⊢ ((𝑥 = 𝐶 ∧ 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) → 𝑥 = 𝐶) |
| 58 | 57 | sseq1d 3946 |
. . . . . . . . . . . 12
⊢ ((𝑥 = 𝐶 ∧ 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) → (𝑥 ⊆ 𝐴 ↔ 𝐶 ⊆ 𝐴)) |
| 59 | | simpr 485 |
. . . . . . . . . . . . 13
⊢ ((𝑥 = 𝐶 ∧ 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) → 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) |
| 60 | 57 | sqxpeqd 5650 |
. . . . . . . . . . . . 13
⊢ ((𝑥 = 𝐶 ∧ 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) → (𝑥 × 𝑥) = (𝐶 × 𝐶)) |
| 61 | 59, 60 | sseq12d 3948 |
. . . . . . . . . . . 12
⊢ ((𝑥 = 𝐶 ∧ 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) → (𝑟 ⊆ (𝑥 × 𝑥) ↔ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) ⊆ (𝐶 × 𝐶))) |
| 62 | 59, 57 | weeq12d 5607 |
. . . . . . . . . . . 12
⊢ ((𝑥 = 𝐶 ∧ 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) → (𝑟 We 𝑥 ↔ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) We 𝐶)) |
| 63 | 58, 61, 62 | 3anbi123d 1444 |
. . . . . . . . . . 11
⊢ ((𝑥 = 𝐶 ∧ 𝑟 = ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))) → ((𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥) ↔ (𝐶 ⊆ 𝐴 ∧ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) ⊆ (𝐶 × 𝐶) ∧ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) We 𝐶))) |
| 64 | 55, 56, 63 | opelopaba 5478 |
. . . . . . . . . 10
⊢
(〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 ∈ {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)} ↔ (𝐶 ⊆ 𝐴 ∧ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) ⊆ (𝐶 × 𝐶) ∧ ((𝑊‘𝐵) ∩ (𝐶 × 𝐶)) We 𝐶)) |
| 65 | 43, 45, 51, 64 | syl3anbrc 1350 |
. . . . . . . . 9
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 ∈ {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)}) |
| 66 | 65, 11 | eleqtrrdi 2850 |
. . . . . . . 8
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 ∈ 𝑂) |
| 67 | 5, 42 | ssexd 5252 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐵 ∈ V) |
| 68 | 52 | a1i 11 |
. . . . . . . . . . 11
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝑊‘𝐵) ∈ V) |
| 69 | | simpl 483 |
. . . . . . . . . . . . . 14
⊢ ((𝑥 = 𝐵 ∧ 𝑟 = (𝑊‘𝐵)) → 𝑥 = 𝐵) |
| 70 | 69 | sseq1d 3946 |
. . . . . . . . . . . . 13
⊢ ((𝑥 = 𝐵 ∧ 𝑟 = (𝑊‘𝐵)) → (𝑥 ⊆ 𝐴 ↔ 𝐵 ⊆ 𝐴)) |
| 71 | | simpr 485 |
. . . . . . . . . . . . . 14
⊢ ((𝑥 = 𝐵 ∧ 𝑟 = (𝑊‘𝐵)) → 𝑟 = (𝑊‘𝐵)) |
| 72 | 69 | sqxpeqd 5650 |
. . . . . . . . . . . . . 14
⊢ ((𝑥 = 𝐵 ∧ 𝑟 = (𝑊‘𝐵)) → (𝑥 × 𝑥) = (𝐵 × 𝐵)) |
| 73 | 71, 72 | sseq12d 3948 |
. . . . . . . . . . . . 13
⊢ ((𝑥 = 𝐵 ∧ 𝑟 = (𝑊‘𝐵)) → (𝑟 ⊆ (𝑥 × 𝑥) ↔ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵))) |
| 74 | 71, 69 | weeq12d 5607 |
. . . . . . . . . . . . 13
⊢ ((𝑥 = 𝐵 ∧ 𝑟 = (𝑊‘𝐵)) → (𝑟 We 𝑥 ↔ (𝑊‘𝐵) We 𝐵)) |
| 75 | 70, 73, 74 | 3anbi123d 1444 |
. . . . . . . . . . . 12
⊢ ((𝑥 = 𝐵 ∧ 𝑟 = (𝑊‘𝐵)) → ((𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥) ↔ (𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵) ∧ (𝑊‘𝐵) We 𝐵))) |
| 76 | 75 | opelopabga 5475 |
. . . . . . . . . . 11
⊢ ((𝐵 ∈ V ∧ (𝑊‘𝐵) ∈ V) → (〈𝐵, (𝑊‘𝐵)〉 ∈ {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)} ↔ (𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵) ∧ (𝑊‘𝐵) We 𝐵))) |
| 77 | 67, 68, 76 | syl2anc 590 |
. . . . . . . . . 10
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (〈𝐵, (𝑊‘𝐵)〉 ∈ {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)} ↔ (𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵) ∧ (𝑊‘𝐵) We 𝐵))) |
| 78 | 42, 35, 47, 77 | mpbir3and 1349 |
. . . . . . . . 9
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 〈𝐵, (𝑊‘𝐵)〉 ∈ {〈𝑥, 𝑟〉 ∣ (𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥) ∧ 𝑟 We 𝑥)}) |
| 79 | 78, 11 | eleqtrrdi 2850 |
. . . . . . . 8
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 〈𝐵, (𝑊‘𝐵)〉 ∈ 𝑂) |
| 80 | | f1fveq 7206 |
. . . . . . . 8
⊢ ((𝐹:𝑂–1-1→𝐴 ∧ (〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 ∈ 𝑂 ∧ 〈𝐵, (𝑊‘𝐵)〉 ∈ 𝑂)) → ((𝐹‘〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉) = (𝐹‘〈𝐵, (𝑊‘𝐵)〉) ↔ 〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 = 〈𝐵, (𝑊‘𝐵)〉)) |
| 81 | 30, 66, 79, 80 | syl12anc 842 |
. . . . . . 7
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((𝐹‘〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉) = (𝐹‘〈𝐵, (𝑊‘𝐵)〉) ↔ 〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 = 〈𝐵, (𝑊‘𝐵)〉)) |
| 82 | 29, 81 | mpbid 233 |
. . . . . 6
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 = 〈𝐵, (𝑊‘𝐵)〉) |
| 83 | 55, 56 | opth1 5415 |
. . . . . 6
⊢
(〈𝐶, ((𝑊‘𝐵) ∩ (𝐶 × 𝐶))〉 = 〈𝐵, (𝑊‘𝐵)〉 → 𝐶 = 𝐵) |
| 84 | 82, 83 | syl 17 |
. . . . 5
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → 𝐶 = 𝐵) |
| 85 | 18, 84 | eleqtrrd 2842 |
. . . 4
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐵𝐹(𝑊‘𝐵)) ∈ 𝐶) |
| 86 | 85, 19 | eleqtrdi 2849 |
. . 3
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐵𝐹(𝑊‘𝐵)) ∈ (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))})) |
| 87 | | ovex 7389 |
. . . . 5
⊢ (𝐵𝐹(𝑊‘𝐵)) ∈ V |
| 88 | 87 | eliniseg 6046 |
. . . 4
⊢ ((𝐵𝐹(𝑊‘𝐵)) ∈ 𝐵 → ((𝐵𝐹(𝑊‘𝐵)) ∈ (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) ↔ (𝐵𝐹(𝑊‘𝐵))(𝑊‘𝐵)(𝐵𝐹(𝑊‘𝐵)))) |
| 89 | 18, 88 | syl 17 |
. . 3
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ((𝐵𝐹(𝑊‘𝐵)) ∈ (◡(𝑊‘𝐵) “ {(𝐵𝐹(𝑊‘𝐵))}) ↔ (𝐵𝐹(𝑊‘𝐵))(𝑊‘𝐵)(𝐵𝐹(𝑊‘𝐵)))) |
| 90 | 86, 89 | mpbid 233 |
. 2
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝐵𝐹(𝑊‘𝐵))(𝑊‘𝐵)(𝐵𝐹(𝑊‘𝐵))) |
| 91 | | weso 5609 |
. . . 4
⊢ ((𝑊‘𝐵) We 𝐵 → (𝑊‘𝐵) Or 𝐵) |
| 92 | 47, 91 | syl 17 |
. . 3
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → (𝑊‘𝐵) Or 𝐵) |
| 93 | | sonr 5550 |
. . 3
⊢ (((𝑊‘𝐵) Or 𝐵 ∧ (𝐵𝐹(𝑊‘𝐵)) ∈ 𝐵) → ¬ (𝐵𝐹(𝑊‘𝐵))(𝑊‘𝐵)(𝐵𝐹(𝑊‘𝐵))) |
| 94 | 92, 18, 93 | syl2anc 590 |
. 2
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐹:𝑂–1-1→𝐴) → ¬ (𝐵𝐹(𝑊‘𝐵))(𝑊‘𝐵)(𝐵𝐹(𝑊‘𝐵))) |
| 95 | 90, 94 | pm2.65da 822 |
1
⊢ (𝐴 ∈ 𝑉 → ¬ 𝐹:𝑂–1-1→𝐴) |