Metamath Proof Explorer


Theorem dfon2lem3

Description: Lemma for dfon2 . All sets satisfying the new definition are transitive and untangled. (Contributed by Scott Fenton, 25-Feb-2011)

Ref Expression
Assertion dfon2lem3 ⊢ A ∈ V → ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → Tr ⁡ A ∧ ∀ z ∈ A ¬ z ∈ z

Proof

Step Hyp Ref Expression
1 untelirr ⊢ ∀ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ z ∈ z → ¬ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
2 eluni2 ⊢ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ↔ ∃ x ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t z ∈ x
3 vex ⊢ x ∈ V
4 sseq1 ⊢ w = x → w ⊆ A ↔ x ⊆ A
5 treq ⊢ w = x → Tr ⁡ w ↔ Tr ⁡ x
6 raleq ⊢ w = x → ∀ t ∈ w ¬ t ∈ t ↔ ∀ t ∈ x ¬ t ∈ t
7 4 5 6 3anbi123d ⊢ w = x → w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ↔ x ⊆ A ∧ Tr ⁡ x ∧ ∀ t ∈ x ¬ t ∈ t
8 3 7 elab ⊢ x ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ↔ x ⊆ A ∧ Tr ⁡ x ∧ ∀ t ∈ x ¬ t ∈ t
9 elequ1 ⊢ t = z → t ∈ t ↔ z ∈ t
10 elequ2 ⊢ t = z → z ∈ t ↔ z ∈ z
11 9 10 bitrd ⊢ t = z → t ∈ t ↔ z ∈ z
12 11 notbid ⊢ t = z → ¬ t ∈ t ↔ ¬ z ∈ z
13 12 cbvralvw ⊢ ∀ t ∈ x ¬ t ∈ t ↔ ∀ z ∈ x ¬ z ∈ z
14 13 biimpi ⊢ ∀ t ∈ x ¬ t ∈ t → ∀ z ∈ x ¬ z ∈ z
15 14 3ad2ant3 ⊢ x ⊆ A ∧ Tr ⁡ x ∧ ∀ t ∈ x ¬ t ∈ t → ∀ z ∈ x ¬ z ∈ z
16 8 15 sylbi ⊢ x ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ∀ z ∈ x ¬ z ∈ z
17 rsp ⊢ ∀ z ∈ x ¬ z ∈ z → z ∈ x → ¬ z ∈ z
18 16 17 syl ⊢ x ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → z ∈ x → ¬ z ∈ z
19 18 rexlimiv ⊢ ∃ x ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t z ∈ x → ¬ z ∈ z
20 2 19 sylbi ⊢ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ¬ z ∈ z
21 1 20 mprg ⊢ ¬ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
22 dfon2lem2 ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A
23 dfpss2 ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A ↔ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ ¬ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A
24 dfon2lem1 ⊢ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
25 ssexg ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ A ∈ V → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ V
26 22 25 mpan ⊢ A ∈ V → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ V
27 psseq1 ⊢ x = ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → x ⊂ A ↔ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A
28 treq ⊢ x = ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → Tr ⁡ x ↔ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
29 27 28 anbi12d ⊢ x = ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → x ⊂ A ∧ Tr ⁡ x ↔ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A ∧ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
30 eleq1 ⊢ x = ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → x ∈ A ↔ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A
31 29 30 imbi12d ⊢ x = ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → x ⊂ A ∧ Tr ⁡ x → x ∈ A ↔ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A ∧ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A
32 31 spcgv ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ V → ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A ∧ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A
33 32 imp ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A ∧ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A
34 26 33 sylan ⊢ A ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A ∧ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A
35 snssi ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A
36 unss ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ↔ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∪ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A
37 df-suc ⊢ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∪ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
38 37 sseq1i ⊢ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ↔ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∪ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A
39 36 38 sylbb2 ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A
40 22 35 39 sylancr ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A
41 suctr ⊢ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → Tr ⁡ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
42 24 41 ax-mp ⊢ Tr ⁡ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
43 untuni ⊢ ∀ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ z ∈ z ↔ ∀ x ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∀ z ∈ x ¬ z ∈ z
44 43 16 mprgbir ⊢ ∀ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ z ∈ z
45 nfv ⊢ Ⅎ t w ⊆ A
46 nfv ⊢ Ⅎ t Tr ⁡ w
47 nfra1 ⊢ Ⅎ t ∀ t ∈ w ¬ t ∈ t
48 45 46 47 nf3an ⊢ Ⅎ t w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
49 48 nfab ⊢ Ⅎ _ t w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
50 49 nfuni ⊢ Ⅎ _ t ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
51 50 untsucf ⊢ ∀ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ z ∈ z → ∀ t ∈ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ t ∈ t
52 44 51 ax-mp ⊢ ∀ t ∈ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ t ∈ t
53 sseq1 ⊢ z = suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → z ⊆ A ↔ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A
54 treq ⊢ z = suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → Tr ⁡ z ↔ Tr ⁡ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
55 nfcv ⊢ Ⅎ _ t z
56 50 nfsuc ⊢ Ⅎ _ t suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
57 55 56 raleqf ⊢ z = suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ∀ t ∈ z ¬ t ∈ t ↔ ∀ t ∈ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ t ∈ t
58 53 54 57 3anbi123d ⊢ z = suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → z ⊆ A ∧ Tr ⁡ z ∧ ∀ t ∈ z ¬ t ∈ t ↔ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ Tr ⁡ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∧ ∀ t ∈ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ t ∈ t
59 sseq1 ⊢ w = z → w ⊆ A ↔ z ⊆ A
60 treq ⊢ w = z → Tr ⁡ w ↔ Tr ⁡ z
61 raleq ⊢ w = z → ∀ t ∈ w ¬ t ∈ t ↔ ∀ t ∈ z ¬ t ∈ t
62 59 60 61 3anbi123d ⊢ w = z → w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ↔ z ⊆ A ∧ Tr ⁡ z ∧ ∀ t ∈ z ¬ t ∈ t
63 62 cbvabv ⊢ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = z | z ⊆ A ∧ Tr ⁡ z ∧ ∀ t ∈ z ¬ t ∈ t
64 58 63 elab2g ⊢ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ V → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ↔ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ Tr ⁡ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∧ ∀ t ∈ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ t ∈ t
65 64 biimprd ⊢ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ V → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ Tr ⁡ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∧ ∀ t ∈ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ t ∈ t → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
66 sucexg ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ V
67 65 66 syl11 ⊢ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ Tr ⁡ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∧ ∀ t ∈ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
68 42 52 67 mp3an23 ⊢ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
69 68 com12 ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
70 elssuni ⊢ suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
71 sucssel ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
72 70 71 syl5 ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
73 69 72 syld ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → suc ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
74 40 73 mpd ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
75 34 74 syl6 ⊢ A ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A ∧ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
76 24 75 mpan2i ⊢ A ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊂ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
77 23 76 biimtrrid ⊢ A ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ⊆ A ∧ ¬ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
78 22 77 mpani ⊢ A ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ¬ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t
79 21 78 mt3i ⊢ A ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A
80 24 44 pm3.2i ⊢ Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∧ ∀ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ z ∈ z
81 treq ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A → Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ↔ Tr ⁡ A
82 raleq ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A → ∀ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ z ∈ z ↔ ∀ z ∈ A ¬ z ∈ z
83 81 82 anbi12d ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A → Tr ⁡ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ∧ ∀ z ∈ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t ¬ z ∈ z ↔ Tr ⁡ A ∧ ∀ z ∈ A ¬ z ∈ z
84 80 83 mpbii ⊢ ⋃ w | w ⊆ A ∧ Tr ⁡ w ∧ ∀ t ∈ w ¬ t ∈ t = A → Tr ⁡ A ∧ ∀ z ∈ A ¬ z ∈ z
85 79 84 syl ⊢ A ∈ V ∧ ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → Tr ⁡ A ∧ ∀ z ∈ A ¬ z ∈ z
86 85 ex ⊢ A ∈ V → ∀ x x ⊂ A ∧ Tr ⁡ x → x ∈ A → Tr ⁡ A ∧ ∀ z ∈ A ¬ z ∈ z