Step | Hyp | Ref
| Expression |
1 | | nofulllem5.3 |
. . . 4
⊢ 𝑋 = ∪
𝑆 |
2 | 1 | dmeqi 5247 |
. . 3
⊢ dom 𝑋 = dom ∪ 𝑆 |
3 | | dmuni 5256 |
. . 3
⊢ dom ∪ 𝑆 =
∪ 𝑏 ∈ 𝑆 dom 𝑏 |
4 | 2, 3 | eqtri 2632 |
. 2
⊢ dom 𝑋 = ∪ 𝑏 ∈ 𝑆 dom 𝑏 |
5 | | iunss 4497 |
. . . . 5
⊢ (∪ 𝑏 ∈ 𝑆 dom 𝑏 ⊆ ∪ 𝑀 ↔ ∀𝑏 ∈ 𝑆 dom 𝑏 ⊆ ∪ 𝑀) |
6 | | vex 3176 |
. . . . . . 7
⊢ 𝑏 ∈ V |
7 | | eqeq2 2621 |
. . . . . . . . . 10
⊢ (𝑓 = 𝑏 → ((𝑔 ↾ 𝑎) = 𝑓 ↔ (𝑔 ↾ 𝑎) = 𝑏)) |
8 | | eqeq2 2621 |
. . . . . . . . . 10
⊢ (𝑓 = 𝑏 → ((ℎ ↾ 𝑎) = 𝑓 ↔ (ℎ ↾ 𝑎) = 𝑏)) |
9 | 7, 8 | anbi12d 743 |
. . . . . . . . 9
⊢ (𝑓 = 𝑏 → (((𝑔 ↾ 𝑎) = 𝑓 ∧ (ℎ ↾ 𝑎) = 𝑓) ↔ ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏))) |
10 | 9 | rexbidv 3034 |
. . . . . . . 8
⊢ (𝑓 = 𝑏 → (∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑓 ∧ (ℎ ↾ 𝑎) = 𝑓) ↔ ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏))) |
11 | 10 | 2rexbidv 3039 |
. . . . . . 7
⊢ (𝑓 = 𝑏 → (∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑓 ∧ (ℎ ↾ 𝑎) = 𝑓) ↔ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏))) |
12 | | nofulllem5.2 |
. . . . . . 7
⊢ 𝑆 = {𝑓 ∣ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑓 ∧ (ℎ ↾ 𝑎) = 𝑓)} |
13 | 6, 11, 12 | elab2 3323 |
. . . . . 6
⊢ (𝑏 ∈ 𝑆 ↔ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏)) |
14 | | inss1 3795 |
. . . . . . . . . . . 12
⊢ (𝑎 ∩ dom 𝑔) ⊆ 𝑎 |
15 | | elssuni 4403 |
. . . . . . . . . . . 12
⊢ (𝑎 ∈ 𝑀 → 𝑎 ⊆ ∪ 𝑀) |
16 | 14, 15 | syl5ss 3579 |
. . . . . . . . . . 11
⊢ (𝑎 ∈ 𝑀 → (𝑎 ∩ dom 𝑔) ⊆ ∪ 𝑀) |
17 | | dmres 5339 |
. . . . . . . . . . . . 13
⊢ dom
(𝑔 ↾ 𝑎) = (𝑎 ∩ dom 𝑔) |
18 | | dmeq 5246 |
. . . . . . . . . . . . 13
⊢ ((𝑔 ↾ 𝑎) = 𝑏 → dom (𝑔 ↾ 𝑎) = dom 𝑏) |
19 | 17, 18 | syl5eqr 2658 |
. . . . . . . . . . . 12
⊢ ((𝑔 ↾ 𝑎) = 𝑏 → (𝑎 ∩ dom 𝑔) = dom 𝑏) |
20 | 19 | sseq1d 3595 |
. . . . . . . . . . 11
⊢ ((𝑔 ↾ 𝑎) = 𝑏 → ((𝑎 ∩ dom 𝑔) ⊆ ∪ 𝑀 ↔ dom 𝑏 ⊆ ∪ 𝑀)) |
21 | 16, 20 | syl5ibcom 234 |
. . . . . . . . . 10
⊢ (𝑎 ∈ 𝑀 → ((𝑔 ↾ 𝑎) = 𝑏 → dom 𝑏 ⊆ ∪ 𝑀)) |
22 | 21 | adantrd 483 |
. . . . . . . . 9
⊢ (𝑎 ∈ 𝑀 → (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) → dom 𝑏 ⊆ ∪ 𝑀)) |
23 | 22 | rexlimiv 3009 |
. . . . . . . 8
⊢
(∃𝑎 ∈
𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) → dom 𝑏 ⊆ ∪ 𝑀) |
24 | 23 | a1i 11 |
. . . . . . 7
⊢ ((𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅) → (∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) → dom 𝑏 ⊆ ∪ 𝑀)) |
25 | 24 | rexlimivv 3018 |
. . . . . 6
⊢
(∃𝑔 ∈
𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) → dom 𝑏 ⊆ ∪ 𝑀) |
26 | 13, 25 | sylbi 206 |
. . . . 5
⊢ (𝑏 ∈ 𝑆 → dom 𝑏 ⊆ ∪ 𝑀) |
27 | 5, 26 | mprgbir 2911 |
. . . 4
⊢ ∪ 𝑏 ∈ 𝑆 dom 𝑏 ⊆ ∪ 𝑀 |
28 | 27 | a1i 11 |
. . 3
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → ∪
𝑏 ∈ 𝑆 dom 𝑏 ⊆ ∪ 𝑀) |
29 | | nofulllem5.1 |
. . . . . . . . 9
⊢ 𝑀 = ∩
{𝑎 ∈ On ∣
∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)} |
30 | 29 | nofulllem4 31104 |
. . . . . . . 8
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → 𝑀 ∈ On) |
31 | | eloni 5650 |
. . . . . . . 8
⊢ (𝑀 ∈ On → Ord 𝑀) |
32 | 30, 31 | syl 17 |
. . . . . . 7
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → Ord 𝑀) |
33 | | ordsucuniel 6916 |
. . . . . . 7
⊢ (Ord
𝑀 → (𝑗 ∈ ∪ 𝑀
↔ suc 𝑗 ∈ 𝑀)) |
34 | 32, 33 | syl 17 |
. . . . . 6
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → (𝑗 ∈ ∪ 𝑀 ↔ suc 𝑗 ∈ 𝑀)) |
35 | | simpr 476 |
. . . . . . . 8
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → suc 𝑗 ∈ 𝑀) |
36 | | onss 6882 |
. . . . . . . . . . . . 13
⊢ (𝑀 ∈ On → 𝑀 ⊆ On) |
37 | 30, 36 | syl 17 |
. . . . . . . . . . . 12
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → 𝑀 ⊆ On) |
38 | 37 | sselda 3568 |
. . . . . . . . . . 11
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → suc 𝑗 ∈ On) |
39 | | ssrab2 3650 |
. . . . . . . . . . . . . . . . . . 19
⊢ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)} ⊆ On |
40 | | onnmin 6895 |
. . . . . . . . . . . . . . . . . . 19
⊢ (({𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)} ⊆ On ∧ suc 𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) → ¬ suc 𝑗 ∈ ∩ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) |
41 | 39, 40 | mpan 702 |
. . . . . . . . . . . . . . . . . 18
⊢ (suc
𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)} → ¬ suc 𝑗 ∈ ∩ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) |
42 | 41 | adantl 481 |
. . . . . . . . . . . . . . . . 17
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) → ¬ suc 𝑗 ∈ ∩ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) |
43 | 29 | eleq2i 2680 |
. . . . . . . . . . . . . . . . 17
⊢ (suc
𝑗 ∈ 𝑀 ↔ suc 𝑗 ∈ ∩ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) |
44 | 42, 43 | sylnibr 318 |
. . . . . . . . . . . . . . . 16
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) → ¬ suc 𝑗 ∈ 𝑀) |
45 | 44 | ex 449 |
. . . . . . . . . . . . . . 15
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → (suc 𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)} → ¬ suc 𝑗 ∈ 𝑀)) |
46 | 45 | con2d 128 |
. . . . . . . . . . . . . 14
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → (suc 𝑗 ∈ 𝑀 → ¬ suc 𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)})) |
47 | 46 | imp 444 |
. . . . . . . . . . . . 13
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → ¬ suc 𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)}) |
48 | | reseq2 5312 |
. . . . . . . . . . . . . . . . 17
⊢ (𝑎 = suc 𝑗 → (𝑥 ↾ 𝑎) = (𝑥 ↾ suc 𝑗)) |
49 | | reseq2 5312 |
. . . . . . . . . . . . . . . . 17
⊢ (𝑎 = suc 𝑗 → (𝑦 ↾ 𝑎) = (𝑦 ↾ suc 𝑗)) |
50 | 48, 49 | neeq12d 2843 |
. . . . . . . . . . . . . . . 16
⊢ (𝑎 = suc 𝑗 → ((𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎) ↔ (𝑥 ↾ suc 𝑗) ≠ (𝑦 ↾ suc 𝑗))) |
51 | 50 | 2ralbidv 2972 |
. . . . . . . . . . . . . . 15
⊢ (𝑎 = suc 𝑗 → (∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎) ↔ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ suc 𝑗) ≠ (𝑦 ↾ suc 𝑗))) |
52 | | reseq1 5311 |
. . . . . . . . . . . . . . . . 17
⊢ (𝑥 = 𝑔 → (𝑥 ↾ suc 𝑗) = (𝑔 ↾ suc 𝑗)) |
53 | 52 | neeq1d 2841 |
. . . . . . . . . . . . . . . 16
⊢ (𝑥 = 𝑔 → ((𝑥 ↾ suc 𝑗) ≠ (𝑦 ↾ suc 𝑗) ↔ (𝑔 ↾ suc 𝑗) ≠ (𝑦 ↾ suc 𝑗))) |
54 | | reseq1 5311 |
. . . . . . . . . . . . . . . . 17
⊢ (𝑦 = ℎ → (𝑦 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗)) |
55 | 54 | neeq2d 2842 |
. . . . . . . . . . . . . . . 16
⊢ (𝑦 = ℎ → ((𝑔 ↾ suc 𝑗) ≠ (𝑦 ↾ suc 𝑗) ↔ (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗))) |
56 | 53, 55 | cbvral2v 3155 |
. . . . . . . . . . . . . . 15
⊢
(∀𝑥 ∈
𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ suc 𝑗) ≠ (𝑦 ↾ suc 𝑗) ↔ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
57 | 51, 56 | syl6bb 275 |
. . . . . . . . . . . . . 14
⊢ (𝑎 = suc 𝑗 → (∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎) ↔ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗))) |
58 | 57 | elrab 3331 |
. . . . . . . . . . . . 13
⊢ (suc
𝑗 ∈ {𝑎 ∈ On ∣ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 (𝑥 ↾ 𝑎) ≠ (𝑦 ↾ 𝑎)} ↔ (suc 𝑗 ∈ On ∧ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗))) |
59 | 47, 58 | sylnib 317 |
. . . . . . . . . . . 12
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → ¬ (suc 𝑗 ∈ On ∧ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗))) |
60 | | imnan 437 |
. . . . . . . . . . . 12
⊢ ((suc
𝑗 ∈ On → ¬
∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) ↔ ¬ (suc 𝑗 ∈ On ∧ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗))) |
61 | 59, 60 | sylibr 223 |
. . . . . . . . . . 11
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → (suc 𝑗 ∈ On → ¬ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗))) |
62 | 38, 61 | mpd 15 |
. . . . . . . . . 10
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → ¬ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
63 | | df-ne 2782 |
. . . . . . . . . . . . . . 15
⊢ ((𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗) ↔ ¬ (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗)) |
64 | 63 | con2bii 346 |
. . . . . . . . . . . . . 14
⊢ ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ↔ ¬ (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
65 | 64 | rexbii 3023 |
. . . . . . . . . . . . 13
⊢
(∃ℎ ∈
𝑅 (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ↔ ∃ℎ ∈ 𝑅 ¬ (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
66 | | rexnal 2978 |
. . . . . . . . . . . . 13
⊢
(∃ℎ ∈
𝑅 ¬ (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗) ↔ ¬ ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
67 | 65, 66 | bitri 263 |
. . . . . . . . . . . 12
⊢
(∃ℎ ∈
𝑅 (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ↔ ¬ ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
68 | 67 | rexbii 3023 |
. . . . . . . . . . 11
⊢
(∃𝑔 ∈
𝐿 ∃ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ↔ ∃𝑔 ∈ 𝐿 ¬ ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
69 | | rexnal 2978 |
. . . . . . . . . . 11
⊢
(∃𝑔 ∈
𝐿 ¬ ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗) ↔ ¬ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
70 | 68, 69 | bitri 263 |
. . . . . . . . . 10
⊢
(∃𝑔 ∈
𝐿 ∃ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ↔ ¬ ∀𝑔 ∈ 𝐿 ∀ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) ≠ (ℎ ↾ suc 𝑗)) |
71 | 62, 70 | sylibr 223 |
. . . . . . . . 9
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗)) |
72 | | simp3 1056 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) |
73 | | breq1 4586 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (𝑥 = 𝑔 → (𝑥 <s 𝑦 ↔ 𝑔 <s 𝑦)) |
74 | | breq2 4587 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (𝑦 = ℎ → (𝑔 <s 𝑦 ↔ 𝑔 <s ℎ)) |
75 | 73, 74 | rspc2v 3293 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅) → (∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦 → 𝑔 <s ℎ)) |
76 | 72, 75 | mpan9 485 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅)) → 𝑔 <s ℎ) |
77 | 76 | adantrl 748 |
. . . . . . . . . . . . . . . . . 18
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → 𝑔 <s ℎ) |
78 | | simp1l 1078 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → 𝐿 ⊆ No
) |
79 | | simprl 790 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((suc
𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅)) → 𝑔 ∈ 𝐿) |
80 | | ssel2 3563 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((𝐿 ⊆
No ∧ 𝑔 ∈
𝐿) → 𝑔 ∈
No ) |
81 | 78, 79, 80 | syl2an 493 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → 𝑔 ∈ No
) |
82 | | sltirr 31069 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝑔 ∈
No → ¬ 𝑔
<s 𝑔) |
83 | 81, 82 | syl 17 |
. . . . . . . . . . . . . . . . . 18
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ¬ 𝑔 <s 𝑔) |
84 | | breq2 4587 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (𝑔 = ℎ → (𝑔 <s 𝑔 ↔ 𝑔 <s ℎ)) |
85 | 84 | biimprcd 239 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝑔 <s ℎ → (𝑔 = ℎ → 𝑔 <s 𝑔)) |
86 | 85 | con3d 147 |
. . . . . . . . . . . . . . . . . 18
⊢ (𝑔 <s ℎ → (¬ 𝑔 <s 𝑔 → ¬ 𝑔 = ℎ)) |
87 | 77, 83, 86 | sylc 63 |
. . . . . . . . . . . . . . . . 17
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ¬ 𝑔 = ℎ) |
88 | 87 | adantr 480 |
. . . . . . . . . . . . . . . 16
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗)) → ¬ 𝑔 = ℎ) |
89 | | ioran 510 |
. . . . . . . . . . . . . . . . 17
⊢ (¬
(𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ↔ (¬ 𝑗 ∈ dom 𝑔 ∧ ¬ 𝑗 ∈ dom ℎ)) |
90 | | simp2l 1080 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → 𝑅 ⊆ No
) |
91 | | simprr 792 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((suc
𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅)) → ℎ ∈ 𝑅) |
92 | | ssel2 3563 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((𝑅 ⊆
No ∧ ℎ ∈
𝑅) → ℎ ∈ No
) |
93 | 90, 91, 92 | syl2an 493 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ℎ ∈ No
) |
94 | 93 | adantr 480 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom ℎ) → ℎ ∈ No
) |
95 | | nofun 31046 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (ℎ ∈ No
→ Fun ℎ) |
96 | | funrel 5821 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (Fun
ℎ → Rel ℎ) |
97 | 94, 95, 96 | 3syl 18 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom ℎ) → Rel ℎ) |
98 | 32 | adantr 480 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → Ord 𝑀) |
99 | | simprl 790 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → suc 𝑗 ∈ 𝑀) |
100 | | ordelon 5664 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
⊢ ((Ord
𝑀 ∧ suc 𝑗 ∈ 𝑀) → suc 𝑗 ∈ On) |
101 | 98, 99, 100 | syl2anc 691 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → suc 𝑗 ∈ On) |
102 | | sucelon 6909 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
⊢ (𝑗 ∈ On ↔ suc 𝑗 ∈ On) |
103 | 101, 102 | sylibr 223 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → 𝑗 ∈ On) |
104 | | eloni 5650 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
⊢ (𝑗 ∈ On → Ord 𝑗) |
105 | 103, 104 | syl 17 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → Ord 𝑗) |
106 | | nodmord 31050 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
⊢ (ℎ ∈ No
→ Ord dom ℎ) |
107 | 93, 106 | syl 17 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → Ord dom ℎ) |
108 | | ordtri2or 5739 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((Ord
𝑗 ∧ Ord dom ℎ) → (𝑗 ∈ dom ℎ ∨ dom ℎ ⊆ 𝑗)) |
109 | 105, 107,
108 | syl2anc 691 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → (𝑗 ∈ dom ℎ ∨ dom ℎ ⊆ 𝑗)) |
110 | 109 | orcanai 950 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom ℎ) → dom ℎ ⊆ 𝑗) |
111 | | sssucid 5719 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ 𝑗 ⊆ suc 𝑗 |
112 | 110, 111 | syl6ss 3580 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom ℎ) → dom ℎ ⊆ suc 𝑗) |
113 | | relssres 5357 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢ ((Rel
ℎ ∧ dom ℎ ⊆ suc 𝑗) → (ℎ ↾ suc 𝑗) = ℎ) |
114 | 97, 112, 113 | syl2anc 691 |
. . . . . . . . . . . . . . . . . . . . . . 23
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom ℎ) → (ℎ ↾ suc 𝑗) = ℎ) |
115 | 114 | ex 449 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → (¬ 𝑗 ∈ dom ℎ → (ℎ ↾ suc 𝑗) = ℎ)) |
116 | 81 | adantr 480 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom 𝑔) → 𝑔 ∈ No
) |
117 | | nofun 31046 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (𝑔 ∈
No → Fun 𝑔) |
118 | | funrel 5821 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (Fun
𝑔 → Rel 𝑔) |
119 | 116, 117,
118 | 3syl 18 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom 𝑔) → Rel 𝑔) |
120 | | nodmord 31050 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
⊢ (𝑔 ∈
No → Ord dom 𝑔) |
121 | 81, 120 | syl 17 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → Ord dom 𝑔) |
122 | | ordtri2or 5739 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((Ord
𝑗 ∧ Ord dom 𝑔) → (𝑗 ∈ dom 𝑔 ∨ dom 𝑔 ⊆ 𝑗)) |
123 | 105, 121,
122 | syl2anc 691 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → (𝑗 ∈ dom 𝑔 ∨ dom 𝑔 ⊆ 𝑗)) |
124 | 123 | orcanai 950 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom 𝑔) → dom 𝑔 ⊆ 𝑗) |
125 | 124, 111 | syl6ss 3580 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom 𝑔) → dom 𝑔 ⊆ suc 𝑗) |
126 | | relssres 5357 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢ ((Rel
𝑔 ∧ dom 𝑔 ⊆ suc 𝑗) → (𝑔 ↾ suc 𝑗) = 𝑔) |
127 | 119, 125,
126 | syl2anc 691 |
. . . . . . . . . . . . . . . . . . . . . . 23
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ ¬ 𝑗 ∈ dom 𝑔) → (𝑔 ↾ suc 𝑗) = 𝑔) |
128 | 127 | ex 449 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → (¬ 𝑗 ∈ dom 𝑔 → (𝑔 ↾ suc 𝑗) = 𝑔)) |
129 | 115, 128 | anim12d 584 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ((¬ 𝑗 ∈ dom ℎ ∧ ¬ 𝑗 ∈ dom 𝑔) → ((ℎ ↾ suc 𝑗) = ℎ ∧ (𝑔 ↾ suc 𝑗) = 𝑔))) |
130 | 129 | ancomsd 469 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ((¬ 𝑗 ∈ dom 𝑔 ∧ ¬ 𝑗 ∈ dom ℎ) → ((ℎ ↾ suc 𝑗) = ℎ ∧ (𝑔 ↾ suc 𝑗) = 𝑔))) |
131 | | eqeq12 2623 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝑔 ↾ suc 𝑗) = 𝑔 ∧ (ℎ ↾ suc 𝑗) = ℎ) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ↔ 𝑔 = ℎ)) |
132 | 131 | biimpd 218 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝑔 ↾ suc 𝑗) = 𝑔 ∧ (ℎ ↾ suc 𝑗) = ℎ) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → 𝑔 = ℎ)) |
133 | 132 | ancoms 468 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (((ℎ ↾ suc 𝑗) = ℎ ∧ (𝑔 ↾ suc 𝑗) = 𝑔) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → 𝑔 = ℎ)) |
134 | 130, 133 | syl6 34 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ((¬ 𝑗 ∈ dom 𝑔 ∧ ¬ 𝑗 ∈ dom ℎ) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → 𝑔 = ℎ))) |
135 | 134 | com23 84 |
. . . . . . . . . . . . . . . . . 18
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → ((¬ 𝑗 ∈ dom 𝑔 ∧ ¬ 𝑗 ∈ dom ℎ) → 𝑔 = ℎ))) |
136 | 135 | imp 444 |
. . . . . . . . . . . . . . . . 17
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗)) → ((¬ 𝑗 ∈ dom 𝑔 ∧ ¬ 𝑗 ∈ dom ℎ) → 𝑔 = ℎ)) |
137 | 89, 136 | syl5bi 231 |
. . . . . . . . . . . . . . . 16
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗)) → (¬ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) → 𝑔 = ℎ)) |
138 | 88, 137 | mt3d 139 |
. . . . . . . . . . . . . . 15
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) ∧ (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗)) → (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ)) |
139 | 138 | ex 449 |
. . . . . . . . . . . . . 14
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ (suc 𝑗 ∈ 𝑀 ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅))) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ))) |
140 | 139 | anassrs 678 |
. . . . . . . . . . . . 13
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) ∧ (𝑔 ∈ 𝐿 ∧ ℎ ∈ 𝑅)) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ))) |
141 | 140 | anassrs 678 |
. . . . . . . . . . . 12
⊢
((((((𝐿 ⊆
No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) ∧ 𝑔 ∈ 𝐿) ∧ ℎ ∈ 𝑅) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ))) |
142 | 141 | ancld 574 |
. . . . . . . . . . 11
⊢
((((((𝐿 ⊆
No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) ∧ 𝑔 ∈ 𝐿) ∧ ℎ ∈ 𝑅) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ)))) |
143 | 142 | reximdva 3000 |
. . . . . . . . . 10
⊢
(((((𝐿 ⊆ No ∧ 𝐿 ∈ 𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) ∧ 𝑔 ∈ 𝐿) → (∃ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → ∃ℎ ∈ 𝑅 ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ)))) |
144 | 143 | reximdva 3000 |
. . . . . . . . 9
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → (∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) → ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ)))) |
145 | 71, 144 | mpd 15 |
. . . . . . . 8
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ))) |
146 | | reseq2 5312 |
. . . . . . . . . . . . 13
⊢ (𝑎 = suc 𝑗 → (𝑔 ↾ 𝑎) = (𝑔 ↾ suc 𝑗)) |
147 | | reseq2 5312 |
. . . . . . . . . . . . 13
⊢ (𝑎 = suc 𝑗 → (ℎ ↾ 𝑎) = (ℎ ↾ suc 𝑗)) |
148 | 146, 147 | eqeq12d 2625 |
. . . . . . . . . . . 12
⊢ (𝑎 = suc 𝑗 → ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ↔ (𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗))) |
149 | | eleq2 2677 |
. . . . . . . . . . . 12
⊢ (𝑎 = suc 𝑗 → (𝑗 ∈ 𝑎 ↔ 𝑗 ∈ suc 𝑗)) |
150 | 148, 149 | 3anbi13d 1393 |
. . . . . . . . . . 11
⊢ (𝑎 = suc 𝑗 → (((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ suc 𝑗))) |
151 | | vex 3176 |
. . . . . . . . . . . . 13
⊢ 𝑗 ∈ V |
152 | 151 | sucid 5721 |
. . . . . . . . . . . 12
⊢ 𝑗 ∈ suc 𝑗 |
153 | | df-3an 1033 |
. . . . . . . . . . . 12
⊢ (((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ suc 𝑗) ↔ (((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ)) ∧ 𝑗 ∈ suc 𝑗)) |
154 | 152, 153 | mpbiran2 956 |
. . . . . . . . . . 11
⊢ (((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ suc 𝑗) ↔ ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ))) |
155 | 150, 154 | syl6bb 275 |
. . . . . . . . . 10
⊢ (𝑎 = suc 𝑗 → (((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ)))) |
156 | 155 | 2rexbidv 3039 |
. . . . . . . . 9
⊢ (𝑎 = suc 𝑗 → (∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ)))) |
157 | 156 | rspcev 3282 |
. . . . . . . 8
⊢ ((suc
𝑗 ∈ 𝑀 ∧ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ suc 𝑗) = (ℎ ↾ suc 𝑗) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ))) → ∃𝑎 ∈ 𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
158 | 35, 145, 157 | syl2anc 691 |
. . . . . . 7
⊢ ((((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) ∧ suc 𝑗 ∈ 𝑀) → ∃𝑎 ∈ 𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
159 | 158 | ex 449 |
. . . . . 6
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → (suc 𝑗 ∈ 𝑀 → ∃𝑎 ∈ 𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎))) |
160 | 34, 159 | sylbid 229 |
. . . . 5
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → (𝑗 ∈ ∪ 𝑀 → ∃𝑎 ∈ 𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎))) |
161 | | eliun 4460 |
. . . . . 6
⊢ (𝑗 ∈ ∪ 𝑏 ∈ 𝑆 dom 𝑏 ↔ ∃𝑏 ∈ 𝑆 𝑗 ∈ dom 𝑏) |
162 | 12 | rexeqi 3120 |
. . . . . 6
⊢
(∃𝑏 ∈
𝑆 𝑗 ∈ dom 𝑏 ↔ ∃𝑏 ∈ {𝑓 ∣ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑓 ∧ (ℎ ↾ 𝑎) = 𝑓)}𝑗 ∈ dom 𝑏) |
163 | | r19.41vv 3072 |
. . . . . . . . . 10
⊢
(∃ℎ ∈
𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ (∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
164 | 163 | rexbii 3023 |
. . . . . . . . 9
⊢
(∃𝑔 ∈
𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ ∃𝑔 ∈ 𝐿 (∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
165 | | r19.41v 3070 |
. . . . . . . . 9
⊢
(∃𝑔 ∈
𝐿 (∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ (∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
166 | 164, 165 | bitri 263 |
. . . . . . . 8
⊢
(∃𝑔 ∈
𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ (∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
167 | 166 | exbii 1764 |
. . . . . . 7
⊢
(∃𝑏∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ ∃𝑏(∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
168 | | rexcom 3080 |
. . . . . . . . 9
⊢
(∃𝑎 ∈
𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑔 ∈ 𝐿 ∃𝑎 ∈ 𝑀 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
169 | | rexcom 3080 |
. . . . . . . . . 10
⊢
(∃𝑎 ∈
𝑀 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
170 | 169 | rexbii 3023 |
. . . . . . . . 9
⊢
(∃𝑔 ∈
𝐿 ∃𝑎 ∈ 𝑀 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
171 | 168, 170 | bitri 263 |
. . . . . . . 8
⊢
(∃𝑎 ∈
𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
172 | | vex 3176 |
. . . . . . . . . . . . . . . 16
⊢ ℎ ∈ V |
173 | 172 | resex 5363 |
. . . . . . . . . . . . . . 15
⊢ (ℎ ↾ 𝑎) ∈ V |
174 | | eqeq2 2621 |
. . . . . . . . . . . . . . . 16
⊢ (𝑏 = (ℎ ↾ 𝑎) → ((𝑔 ↾ 𝑎) = 𝑏 ↔ (𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎))) |
175 | | dmeq 5246 |
. . . . . . . . . . . . . . . . 17
⊢ (𝑏 = (ℎ ↾ 𝑎) → dom 𝑏 = dom (ℎ ↾ 𝑎)) |
176 | 175 | eleq2d 2673 |
. . . . . . . . . . . . . . . 16
⊢ (𝑏 = (ℎ ↾ 𝑎) → (𝑗 ∈ dom 𝑏 ↔ 𝑗 ∈ dom (ℎ ↾ 𝑎))) |
177 | 174, 176 | anbi12d 743 |
. . . . . . . . . . . . . . 15
⊢ (𝑏 = (ℎ ↾ 𝑎) → (((𝑔 ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏) ↔ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ 𝑗 ∈ dom (ℎ ↾ 𝑎)))) |
178 | 173, 177 | ceqsexv 3215 |
. . . . . . . . . . . . . 14
⊢
(∃𝑏(𝑏 = (ℎ ↾ 𝑎) ∧ ((𝑔 ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏)) ↔ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ 𝑗 ∈ dom (ℎ ↾ 𝑎))) |
179 | | an12 834 |
. . . . . . . . . . . . . . . 16
⊢ (((ℎ ↾ 𝑎) = 𝑏 ∧ ((𝑔 ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏)) ↔ ((𝑔 ↾ 𝑎) = 𝑏 ∧ ((ℎ ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏))) |
180 | | eqcom 2617 |
. . . . . . . . . . . . . . . . 17
⊢ (𝑏 = (ℎ ↾ 𝑎) ↔ (ℎ ↾ 𝑎) = 𝑏) |
181 | 180 | anbi1i 727 |
. . . . . . . . . . . . . . . 16
⊢ ((𝑏 = (ℎ ↾ 𝑎) ∧ ((𝑔 ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏)) ↔ ((ℎ ↾ 𝑎) = 𝑏 ∧ ((𝑔 ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏))) |
182 | | anass 679 |
. . . . . . . . . . . . . . . 16
⊢ ((((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ ((𝑔 ↾ 𝑎) = 𝑏 ∧ ((ℎ ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏))) |
183 | 179, 181,
182 | 3bitr4i 291 |
. . . . . . . . . . . . . . 15
⊢ ((𝑏 = (ℎ ↾ 𝑎) ∧ ((𝑔 ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏)) ↔ (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
184 | 183 | exbii 1764 |
. . . . . . . . . . . . . 14
⊢
(∃𝑏(𝑏 = (ℎ ↾ 𝑎) ∧ ((𝑔 ↾ 𝑎) = 𝑏 ∧ 𝑗 ∈ dom 𝑏)) ↔ ∃𝑏(((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
185 | | dmeq 5246 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) → dom (𝑔 ↾ 𝑎) = dom (ℎ ↾ 𝑎)) |
186 | 185 | eleq2d 2673 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) → (𝑗 ∈ dom (𝑔 ↾ 𝑎) ↔ 𝑗 ∈ dom (ℎ ↾ 𝑎))) |
187 | 186 | orbi1d 735 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) → ((𝑗 ∈ dom (𝑔 ↾ 𝑎) ∨ 𝑗 ∈ dom (ℎ ↾ 𝑎)) ↔ (𝑗 ∈ dom (ℎ ↾ 𝑎) ∨ 𝑗 ∈ dom (ℎ ↾ 𝑎)))) |
188 | | oridm 535 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝑗 ∈ dom (ℎ ↾ 𝑎) ∨ 𝑗 ∈ dom (ℎ ↾ 𝑎)) ↔ 𝑗 ∈ dom (ℎ ↾ 𝑎)) |
189 | 187, 188 | syl6rbb 276 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) → (𝑗 ∈ dom (ℎ ↾ 𝑎) ↔ (𝑗 ∈ dom (𝑔 ↾ 𝑎) ∨ 𝑗 ∈ dom (ℎ ↾ 𝑎)))) |
190 | | incom 3767 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (𝑎 ∩ dom 𝑔) = (dom 𝑔 ∩ 𝑎) |
191 | 17, 190 | eqtri 2632 |
. . . . . . . . . . . . . . . . . . . 20
⊢ dom
(𝑔 ↾ 𝑎) = (dom 𝑔 ∩ 𝑎) |
192 | 191 | elin2 3763 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝑗 ∈ dom (𝑔 ↾ 𝑎) ↔ (𝑗 ∈ dom 𝑔 ∧ 𝑗 ∈ 𝑎)) |
193 | | dmres 5339 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ dom
(ℎ ↾ 𝑎) = (𝑎 ∩ dom ℎ) |
194 | | incom 3767 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (𝑎 ∩ dom ℎ) = (dom ℎ ∩ 𝑎) |
195 | 193, 194 | eqtri 2632 |
. . . . . . . . . . . . . . . . . . . 20
⊢ dom
(ℎ ↾ 𝑎) = (dom ℎ ∩ 𝑎) |
196 | 195 | elin2 3763 |
. . . . . . . . . . . . . . . . . . 19
⊢ (𝑗 ∈ dom (ℎ ↾ 𝑎) ↔ (𝑗 ∈ dom ℎ ∧ 𝑗 ∈ 𝑎)) |
197 | 192, 196 | orbi12i 542 |
. . . . . . . . . . . . . . . . . 18
⊢ ((𝑗 ∈ dom (𝑔 ↾ 𝑎) ∨ 𝑗 ∈ dom (ℎ ↾ 𝑎)) ↔ ((𝑗 ∈ dom 𝑔 ∧ 𝑗 ∈ 𝑎) ∨ (𝑗 ∈ dom ℎ ∧ 𝑗 ∈ 𝑎))) |
198 | | andir 908 |
. . . . . . . . . . . . . . . . . 18
⊢ (((𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ((𝑗 ∈ dom 𝑔 ∧ 𝑗 ∈ 𝑎) ∨ (𝑗 ∈ dom ℎ ∧ 𝑗 ∈ 𝑎))) |
199 | 197, 198 | bitr4i 266 |
. . . . . . . . . . . . . . . . 17
⊢ ((𝑗 ∈ dom (𝑔 ↾ 𝑎) ∨ 𝑗 ∈ dom (ℎ ↾ 𝑎)) ↔ ((𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
200 | 189, 199 | syl6bb 275 |
. . . . . . . . . . . . . . . 16
⊢ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) → (𝑗 ∈ dom (ℎ ↾ 𝑎) ↔ ((𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎))) |
201 | 200 | pm5.32i 667 |
. . . . . . . . . . . . . . 15
⊢ (((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ 𝑗 ∈ dom (ℎ ↾ 𝑎)) ↔ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ ((𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎))) |
202 | | 3anass 1035 |
. . . . . . . . . . . . . . 15
⊢ (((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ ((𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎))) |
203 | 201, 202 | bitr4i 266 |
. . . . . . . . . . . . . 14
⊢ (((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ 𝑗 ∈ dom (ℎ ↾ 𝑎)) ↔ ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
204 | 178, 184,
203 | 3bitr3ri 290 |
. . . . . . . . . . . . 13
⊢ (((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑏(((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
205 | 204 | rexbii 3023 |
. . . . . . . . . . . 12
⊢
(∃𝑎 ∈
𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑎 ∈ 𝑀 ∃𝑏(((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
206 | | rexcom4 3198 |
. . . . . . . . . . . 12
⊢
(∃𝑎 ∈
𝑀 ∃𝑏(((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ ∃𝑏∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
207 | 205, 206 | bitri 263 |
. . . . . . . . . . 11
⊢
(∃𝑎 ∈
𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑏∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
208 | 207 | rexbii 3023 |
. . . . . . . . . 10
⊢
(∃ℎ ∈
𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃ℎ ∈ 𝑅 ∃𝑏∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
209 | | rexcom4 3198 |
. . . . . . . . . 10
⊢
(∃ℎ ∈
𝑅 ∃𝑏∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ ∃𝑏∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
210 | 208, 209 | bitri 263 |
. . . . . . . . 9
⊢
(∃ℎ ∈
𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑏∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
211 | 210 | rexbii 3023 |
. . . . . . . 8
⊢
(∃𝑔 ∈
𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑔 ∈ 𝐿 ∃𝑏∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
212 | | rexcom4 3198 |
. . . . . . . 8
⊢
(∃𝑔 ∈
𝐿 ∃𝑏∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏) ↔ ∃𝑏∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
213 | 171, 211,
212 | 3bitri 285 |
. . . . . . 7
⊢
(∃𝑎 ∈
𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎) ↔ ∃𝑏∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 (((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
214 | 11 | rexab 3336 |
. . . . . . 7
⊢
(∃𝑏 ∈
{𝑓 ∣ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑓 ∧ (ℎ ↾ 𝑎) = 𝑓)}𝑗 ∈ dom 𝑏 ↔ ∃𝑏(∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑏 ∧ (ℎ ↾ 𝑎) = 𝑏) ∧ 𝑗 ∈ dom 𝑏)) |
215 | 167, 213,
214 | 3bitr4ri 292 |
. . . . . 6
⊢
(∃𝑏 ∈
{𝑓 ∣ ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ∃𝑎 ∈ 𝑀 ((𝑔 ↾ 𝑎) = 𝑓 ∧ (ℎ ↾ 𝑎) = 𝑓)}𝑗 ∈ dom 𝑏 ↔ ∃𝑎 ∈ 𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
216 | 161, 162,
215 | 3bitri 285 |
. . . . 5
⊢ (𝑗 ∈ ∪ 𝑏 ∈ 𝑆 dom 𝑏 ↔ ∃𝑎 ∈ 𝑀 ∃𝑔 ∈ 𝐿 ∃ℎ ∈ 𝑅 ((𝑔 ↾ 𝑎) = (ℎ ↾ 𝑎) ∧ (𝑗 ∈ dom 𝑔 ∨ 𝑗 ∈ dom ℎ) ∧ 𝑗 ∈ 𝑎)) |
217 | 160, 216 | syl6ibr 241 |
. . . 4
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → (𝑗 ∈ ∪ 𝑀 → 𝑗 ∈ ∪
𝑏 ∈ 𝑆 dom 𝑏)) |
218 | 217 | ssrdv 3574 |
. . 3
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → ∪ 𝑀 ⊆ ∪ 𝑏 ∈ 𝑆 dom 𝑏) |
219 | 28, 218 | eqssd 3585 |
. 2
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → ∪
𝑏 ∈ 𝑆 dom 𝑏 = ∪ 𝑀) |
220 | 4, 219 | syl5eq 2656 |
1
⊢ (((𝐿 ⊆
No ∧ 𝐿 ∈
𝑉) ∧ (𝑅 ⊆ No
∧ 𝑅 ∈ 𝑊) ∧ ∀𝑥 ∈ 𝐿 ∀𝑦 ∈ 𝑅 𝑥 <s 𝑦) → dom 𝑋 = ∪ 𝑀) |