Metamath Proof Explorer


Theorem ptpconn

Description: The topological product of a collection of path-connected spaces is path-connected. The proof uses the axiom of choice. (Contributed by Mario Carneiro, 17-Feb-2015)

Ref Expression
Assertion ptpconn ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) → ( ∏t ‘ 𝐹 ) ∈ PConn )

Proof

Step Hyp Ref Expression
1 pconntop ⊢ ( 𝑥 ∈ PConn → 𝑥 ∈ Top )
2 1 ssriv ⊢ PConn ⊆ Top
3 fss ⊢ ( ( 𝐹 : 𝐴 ⟶ PConn ∧ PConn ⊆ Top ) → 𝐹 : 𝐴 ⟶ Top )
4 2 3 mpan2 ⊢ ( 𝐹 : 𝐴 ⟶ PConn → 𝐹 : 𝐴 ⟶ Top )
5 pttop ⊢ ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ Top ) → ( ∏t ‘ 𝐹 ) ∈ Top )
6 4 5 sylan2 ⊢ ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) → ( ∏t ‘ 𝐹 ) ∈ Top )
7 fvi ⊢ ( 𝐴 ∈ 𝑉 → ( I ‘ 𝐴 ) = 𝐴 )
8 7 ad2antrr ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ( I ‘ 𝐴 ) = 𝐴 )
9 8 eleq2d ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ( 𝑡 ∈ ( I ‘ 𝐴 ) ↔ 𝑡 ∈ 𝐴 ) )
10 9 biimpa ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ 𝑡 ∈ ( I ‘ 𝐴 ) ) → 𝑡 ∈ 𝐴 )
11 simplr ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → 𝐹 : 𝐴 ⟶ PConn )
12 11 ffvelcdmda ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ 𝑡 ∈ 𝐴 ) → ( 𝐹 ‘ 𝑡 ) ∈ PConn )
13 simprl ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) )
14 eqid ⊢ ( ∏t ‘ 𝐹 ) = ( ∏t ‘ 𝐹 )
15 14 ptuni ⊢ ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ Top ) → X 𝑡 ∈ 𝐴 ∪ ( 𝐹 ‘ 𝑡 ) = ∪ ( ∏t ‘ 𝐹 ) )
16 4 15 sylan2 ⊢ ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) → X 𝑡 ∈ 𝐴 ∪ ( 𝐹 ‘ 𝑡 ) = ∪ ( ∏t ‘ 𝐹 ) )
17 16 adantr ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → X 𝑡 ∈ 𝐴 ∪ ( 𝐹 ‘ 𝑡 ) = ∪ ( ∏t ‘ 𝐹 ) )
18 13 17 eleqtrrd ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → 𝑥 ∈ X 𝑡 ∈ 𝐴 ∪ ( 𝐹 ‘ 𝑡 ) )
19 vex ⊢ 𝑥 ∈ V
20 19 elixp ⊢ ( 𝑥 ∈ X 𝑡 ∈ 𝐴 ∪ ( 𝐹 ‘ 𝑡 ) ↔ ( 𝑥 Fn 𝐴 ∧ ∀ 𝑡 ∈ 𝐴 ( 𝑥 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) ) )
21 18 20 sylib ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ( 𝑥 Fn 𝐴 ∧ ∀ 𝑡 ∈ 𝐴 ( 𝑥 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) ) )
22 21 simprd ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ∀ 𝑡 ∈ 𝐴 ( 𝑥 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) )
23 22 r19.21bi ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ 𝑡 ∈ 𝐴 ) → ( 𝑥 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) )
24 simprr ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) )
25 24 17 eleqtrrd ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → 𝑦 ∈ X 𝑡 ∈ 𝐴 ∪ ( 𝐹 ‘ 𝑡 ) )
26 vex ⊢ 𝑦 ∈ V
27 26 elixp ⊢ ( 𝑦 ∈ X 𝑡 ∈ 𝐴 ∪ ( 𝐹 ‘ 𝑡 ) ↔ ( 𝑦 Fn 𝐴 ∧ ∀ 𝑡 ∈ 𝐴 ( 𝑦 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) ) )
28 25 27 sylib ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ( 𝑦 Fn 𝐴 ∧ ∀ 𝑡 ∈ 𝐴 ( 𝑦 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) ) )
29 28 simprd ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ∀ 𝑡 ∈ 𝐴 ( 𝑦 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) )
30 29 r19.21bi ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ 𝑡 ∈ 𝐴 ) → ( 𝑦 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) )
31 eqid ⊢ ∪ ( 𝐹 ‘ 𝑡 ) = ∪ ( 𝐹 ‘ 𝑡 )
32 31 pconncn ⊢ ( ( ( 𝐹 ‘ 𝑡 ) ∈ PConn ∧ ( 𝑥 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) ∧ ( 𝑦 ‘ 𝑡 ) ∈ ∪ ( 𝐹 ‘ 𝑡 ) ) → ∃ 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) )
33 12 23 30 32 syl3anc ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ 𝑡 ∈ 𝐴 ) → ∃ 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) )
34 df-rex ⊢ ( ∃ 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ↔ ∃ 𝑓 ( 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) )
35 33 34 sylib ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ 𝑡 ∈ 𝐴 ) → ∃ 𝑓 ( 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) )
36 10 35 syldan ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ 𝑡 ∈ ( I ‘ 𝐴 ) ) → ∃ 𝑓 ( 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) )
37 36 ralrimiva ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ∃ 𝑓 ( 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) )
38 fvex ⊢ ( I ‘ 𝐴 ) ∈ V
39 eleq1 ⊢ ( 𝑓 = ( 𝑔 ‘ 𝑡 ) → ( 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ↔ ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ) )
40 fveq1 ⊢ ( 𝑓 = ( 𝑔 ‘ 𝑡 ) → ( 𝑓 ‘ 0 ) = ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) )
41 40 eqeq1d ⊢ ( 𝑓 = ( 𝑔 ‘ 𝑡 ) → ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ↔ ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ) )
42 fveq1 ⊢ ( 𝑓 = ( 𝑔 ‘ 𝑡 ) → ( 𝑓 ‘ 1 ) = ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) )
43 42 eqeq1d ⊢ ( 𝑓 = ( 𝑔 ‘ 𝑡 ) → ( ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ↔ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) )
44 41 43 anbi12d ⊢ ( 𝑓 = ( 𝑔 ‘ 𝑡 ) → ( ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ↔ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) )
45 39 44 anbi12d ⊢ ( 𝑓 = ( 𝑔 ‘ 𝑡 ) → ( ( 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ↔ ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) )
46 38 45 ac6s2 ⊢ ( ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ∃ 𝑓 ( 𝑓 ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( 𝑓 ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( 𝑓 ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) → ∃ 𝑔 ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) )
47 37 46 syl ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ∃ 𝑔 ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) )
48 iitopon ⊢ II ∈ ( TopOn ‘ ( 0 [,] 1 ) )
49 48 a1i ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → II ∈ ( TopOn ‘ ( 0 [,] 1 ) ) )
50 simplll ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → 𝐴 ∈ 𝑉 )
51 11 adantr ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → 𝐹 : 𝐴 ⟶ PConn )
52 51 4 syl ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → 𝐹 : 𝐴 ⟶ Top )
53 8 adantr ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( I ‘ 𝐴 ) = 𝐴 )
54 53 eleq2d ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( 𝑖 ∈ ( I ‘ 𝐴 ) ↔ 𝑖 ∈ 𝐴 ) )
55 54 biimpar ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → 𝑖 ∈ ( I ‘ 𝐴 ) )
56 simprr ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) )
57 fveq2 ⊢ ( 𝑡 = 𝑖 → ( 𝑔 ‘ 𝑡 ) = ( 𝑔 ‘ 𝑖 ) )
58 fveq2 ⊢ ( 𝑡 = 𝑖 → ( 𝐹 ‘ 𝑡 ) = ( 𝐹 ‘ 𝑖 ) )
59 58 oveq2d ⊢ ( 𝑡 = 𝑖 → ( II Cn ( 𝐹 ‘ 𝑡 ) ) = ( II Cn ( 𝐹 ‘ 𝑖 ) ) )
60 57 59 eleq12d ⊢ ( 𝑡 = 𝑖 → ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ↔ ( 𝑔 ‘ 𝑖 ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) ) )
61 57 fveq1d ⊢ ( 𝑡 = 𝑖 → ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) )
62 fveq2 ⊢ ( 𝑡 = 𝑖 → ( 𝑥 ‘ 𝑡 ) = ( 𝑥 ‘ 𝑖 ) )
63 61 62 eqeq12d ⊢ ( 𝑡 = 𝑖 → ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ↔ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) ) )
64 57 fveq1d ⊢ ( 𝑡 = 𝑖 → ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) )
65 fveq2 ⊢ ( 𝑡 = 𝑖 → ( 𝑦 ‘ 𝑡 ) = ( 𝑦 ‘ 𝑖 ) )
66 64 65 eqeq12d ⊢ ( 𝑡 = 𝑖 → ( ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ↔ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) ) )
67 63 66 anbi12d ⊢ ( 𝑡 = 𝑖 → ( ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ↔ ( ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) ∧ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) ) ) )
68 60 67 anbi12d ⊢ ( 𝑡 = 𝑖 → ( ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ↔ ( ( 𝑔 ‘ 𝑖 ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) ∧ ( ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) ∧ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) ) ) ) )
69 68 rspccva ⊢ ( ( ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ∧ 𝑖 ∈ ( I ‘ 𝐴 ) ) → ( ( 𝑔 ‘ 𝑖 ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) ∧ ( ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) ∧ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) ) ) )
70 56 69 sylan ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ ( I ‘ 𝐴 ) ) → ( ( 𝑔 ‘ 𝑖 ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) ∧ ( ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) ∧ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) ) ) )
71 55 70 syldan ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( ( 𝑔 ‘ 𝑖 ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) ∧ ( ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) ∧ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) ) ) )
72 71 simpld ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( 𝑔 ‘ 𝑖 ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) )
73 iiuni ⊢ ( 0 [,] 1 ) = ∪ II
74 eqid ⊢ ∪ ( 𝐹 ‘ 𝑖 ) = ∪ ( 𝐹 ‘ 𝑖 )
75 73 74 cnf ⊢ ( ( 𝑔 ‘ 𝑖 ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) → ( 𝑔 ‘ 𝑖 ) : ( 0 [,] 1 ) ⟶ ∪ ( 𝐹 ‘ 𝑖 ) )
76 72 75 syl ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( 𝑔 ‘ 𝑖 ) : ( 0 [,] 1 ) ⟶ ∪ ( 𝐹 ‘ 𝑖 ) )
77 76 feqmptd ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( 𝑔 ‘ 𝑖 ) = ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) )
78 77 72 eqeltrrd ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ∈ ( II Cn ( 𝐹 ‘ 𝑖 ) ) )
79 14 49 50 52 78 ptcn ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ∈ ( II Cn ( ∏t ‘ 𝐹 ) ) )
80 71 simprd ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) ∧ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) ) )
81 80 simpld ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) = ( 𝑥 ‘ 𝑖 ) )
82 81 mpteq2dva ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) ) = ( 𝑖 ∈ 𝐴 ↦ ( 𝑥 ‘ 𝑖 ) ) )
83 0elunit ⊢ 0 ∈ ( 0 [,] 1 )
84 mptexg ⊢ ( 𝐴 ∈ 𝑉 → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) ) ∈ V )
85 50 84 syl ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) ) ∈ V )
86 fveq2 ⊢ ( 𝑧 = 0 → ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) = ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) )
87 86 mpteq2dv ⊢ ( 𝑧 = 0 → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) = ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) ) )
88 eqid ⊢ ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) = ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) )
89 87 88 fvmptg ⊢ ( ( 0 ∈ ( 0 [,] 1 ) ∧ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) ) ∈ V ) → ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 0 ) = ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) ) )
90 83 85 89 sylancr ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 0 ) = ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 0 ) ) )
91 21 simpld ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → 𝑥 Fn 𝐴 )
92 91 adantr ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → 𝑥 Fn 𝐴 )
93 dffn5 ⊢ ( 𝑥 Fn 𝐴 ↔ 𝑥 = ( 𝑖 ∈ 𝐴 ↦ ( 𝑥 ‘ 𝑖 ) ) )
94 92 93 sylib ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → 𝑥 = ( 𝑖 ∈ 𝐴 ↦ ( 𝑥 ‘ 𝑖 ) ) )
95 82 90 94 3eqtr4d ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 0 ) = 𝑥 )
96 80 simprd ⊢ ( ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) ∧ 𝑖 ∈ 𝐴 ) → ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) = ( 𝑦 ‘ 𝑖 ) )
97 96 mpteq2dva ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) ) = ( 𝑖 ∈ 𝐴 ↦ ( 𝑦 ‘ 𝑖 ) ) )
98 1elunit ⊢ 1 ∈ ( 0 [,] 1 )
99 mptexg ⊢ ( 𝐴 ∈ 𝑉 → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) ) ∈ V )
100 50 99 syl ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) ) ∈ V )
101 fveq2 ⊢ ( 𝑧 = 1 → ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) = ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) )
102 101 mpteq2dv ⊢ ( 𝑧 = 1 → ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) = ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) ) )
103 102 88 fvmptg ⊢ ( ( 1 ∈ ( 0 [,] 1 ) ∧ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) ) ∈ V ) → ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 1 ) = ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) ) )
104 98 100 103 sylancr ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 1 ) = ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 1 ) ) )
105 28 simpld ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → 𝑦 Fn 𝐴 )
106 105 adantr ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → 𝑦 Fn 𝐴 )
107 dffn5 ⊢ ( 𝑦 Fn 𝐴 ↔ 𝑦 = ( 𝑖 ∈ 𝐴 ↦ ( 𝑦 ‘ 𝑖 ) ) )
108 106 107 sylib ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → 𝑦 = ( 𝑖 ∈ 𝐴 ↦ ( 𝑦 ‘ 𝑖 ) ) )
109 97 104 108 3eqtr4d ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 1 ) = 𝑦 )
110 fveq1 ⊢ ( 𝑓 = ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) → ( 𝑓 ‘ 0 ) = ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 0 ) )
111 110 eqeq1d ⊢ ( 𝑓 = ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) → ( ( 𝑓 ‘ 0 ) = 𝑥 ↔ ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 0 ) = 𝑥 ) )
112 fveq1 ⊢ ( 𝑓 = ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) → ( 𝑓 ‘ 1 ) = ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 1 ) )
113 112 eqeq1d ⊢ ( 𝑓 = ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) → ( ( 𝑓 ‘ 1 ) = 𝑦 ↔ ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 1 ) = 𝑦 ) )
114 111 113 anbi12d ⊢ ( 𝑓 = ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) → ( ( ( 𝑓 ‘ 0 ) = 𝑥 ∧ ( 𝑓 ‘ 1 ) = 𝑦 ) ↔ ( ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 0 ) = 𝑥 ∧ ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 1 ) = 𝑦 ) ) )
115 114 rspcev ⊢ ( ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ∈ ( II Cn ( ∏t ‘ 𝐹 ) ) ∧ ( ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 0 ) = 𝑥 ∧ ( ( 𝑧 ∈ ( 0 [,] 1 ) ↦ ( 𝑖 ∈ 𝐴 ↦ ( ( 𝑔 ‘ 𝑖 ) ‘ 𝑧 ) ) ) ‘ 1 ) = 𝑦 ) ) → ∃ 𝑓 ∈ ( II Cn ( ∏t ‘ 𝐹 ) ) ( ( 𝑓 ‘ 0 ) = 𝑥 ∧ ( 𝑓 ‘ 1 ) = 𝑦 ) )
116 79 95 109 115 syl12anc ⊢ ( ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) ∧ ( 𝑔 Fn ( I ‘ 𝐴 ) ∧ ∀ 𝑡 ∈ ( I ‘ 𝐴 ) ( ( 𝑔 ‘ 𝑡 ) ∈ ( II Cn ( 𝐹 ‘ 𝑡 ) ) ∧ ( ( ( 𝑔 ‘ 𝑡 ) ‘ 0 ) = ( 𝑥 ‘ 𝑡 ) ∧ ( ( 𝑔 ‘ 𝑡 ) ‘ 1 ) = ( 𝑦 ‘ 𝑡 ) ) ) ) ) → ∃ 𝑓 ∈ ( II Cn ( ∏t ‘ 𝐹 ) ) ( ( 𝑓 ‘ 0 ) = 𝑥 ∧ ( 𝑓 ‘ 1 ) = 𝑦 ) )
117 47 116 exlimddv ⊢ ( ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) ∧ ( 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∧ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ) ) → ∃ 𝑓 ∈ ( II Cn ( ∏t ‘ 𝐹 ) ) ( ( 𝑓 ‘ 0 ) = 𝑥 ∧ ( 𝑓 ‘ 1 ) = 𝑦 ) )
118 117 ralrimivva ⊢ ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) → ∀ 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∀ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ∃ 𝑓 ∈ ( II Cn ( ∏t ‘ 𝐹 ) ) ( ( 𝑓 ‘ 0 ) = 𝑥 ∧ ( 𝑓 ‘ 1 ) = 𝑦 ) )
119 eqid ⊢ ∪ ( ∏t ‘ 𝐹 ) = ∪ ( ∏t ‘ 𝐹 )
120 119 ispconn ⊢ ( ( ∏t ‘ 𝐹 ) ∈ PConn ↔ ( ( ∏t ‘ 𝐹 ) ∈ Top ∧ ∀ 𝑥 ∈ ∪ ( ∏t ‘ 𝐹 ) ∀ 𝑦 ∈ ∪ ( ∏t ‘ 𝐹 ) ∃ 𝑓 ∈ ( II Cn ( ∏t ‘ 𝐹 ) ) ( ( 𝑓 ‘ 0 ) = 𝑥 ∧ ( 𝑓 ‘ 1 ) = 𝑦 ) ) )
121 6 118 120 sylanbrc ⊢ ( ( 𝐴 ∈ 𝑉 ∧ 𝐹 : 𝐴 ⟶ PConn ) → ( ∏t ‘ 𝐹 ) ∈ PConn )