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Theorem ptpconn 31341
 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.)
Assertion
Ref Expression
ptpconn ((𝐴𝑉𝐹:𝐴⟶PConn) → (∏t𝐹) ∈ PConn)

Proof of Theorem ptpconn
Dummy variables 𝑓 𝑥 𝑦 𝑔 𝑡 𝑧 𝑖 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 pconntop 31333 . . . . 5 (𝑥 ∈ PConn → 𝑥 ∈ Top)
21ssriv 3640 . . . 4 PConn ⊆ Top
3 fss 6094 . . . 4 ((𝐹:𝐴⟶PConn ∧ PConn ⊆ Top) → 𝐹:𝐴⟶Top)
42, 3mpan2 707 . . 3 (𝐹:𝐴⟶PConn → 𝐹:𝐴⟶Top)
5 pttop 21433 . . 3 ((𝐴𝑉𝐹:𝐴⟶Top) → (∏t𝐹) ∈ Top)
64, 5sylan2 490 . 2 ((𝐴𝑉𝐹:𝐴⟶PConn) → (∏t𝐹) ∈ Top)
7 fvi 6294 . . . . . . . . . 10 (𝐴𝑉 → ( I ‘𝐴) = 𝐴)
87ad2antrr 762 . . . . . . . . 9 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → ( I ‘𝐴) = 𝐴)
98eleq2d 2716 . . . . . . . 8 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → (𝑡 ∈ ( I ‘𝐴) ↔ 𝑡𝐴))
109biimpa 500 . . . . . . 7 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ 𝑡 ∈ ( I ‘𝐴)) → 𝑡𝐴)
11 simplr 807 . . . . . . . . . 10 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → 𝐹:𝐴⟶PConn)
1211ffvelrnda 6399 . . . . . . . . 9 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ 𝑡𝐴) → (𝐹𝑡) ∈ PConn)
13 simprl 809 . . . . . . . . . . . . 13 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → 𝑥 (∏t𝐹))
14 eqid 2651 . . . . . . . . . . . . . . . 16 (∏t𝐹) = (∏t𝐹)
1514ptuni 21445 . . . . . . . . . . . . . . 15 ((𝐴𝑉𝐹:𝐴⟶Top) → X𝑡𝐴 (𝐹𝑡) = (∏t𝐹))
164, 15sylan2 490 . . . . . . . . . . . . . 14 ((𝐴𝑉𝐹:𝐴⟶PConn) → X𝑡𝐴 (𝐹𝑡) = (∏t𝐹))
1716adantr 480 . . . . . . . . . . . . 13 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → X𝑡𝐴 (𝐹𝑡) = (∏t𝐹))
1813, 17eleqtrrd 2733 . . . . . . . . . . . 12 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → 𝑥X𝑡𝐴 (𝐹𝑡))
19 vex 3234 . . . . . . . . . . . . 13 𝑥 ∈ V
2019elixp 7957 . . . . . . . . . . . 12 (𝑥X𝑡𝐴 (𝐹𝑡) ↔ (𝑥 Fn 𝐴 ∧ ∀𝑡𝐴 (𝑥𝑡) ∈ (𝐹𝑡)))
2118, 20sylib 208 . . . . . . . . . . 11 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → (𝑥 Fn 𝐴 ∧ ∀𝑡𝐴 (𝑥𝑡) ∈ (𝐹𝑡)))
2221simprd 478 . . . . . . . . . 10 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → ∀𝑡𝐴 (𝑥𝑡) ∈ (𝐹𝑡))
2322r19.21bi 2961 . . . . . . . . 9 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ 𝑡𝐴) → (𝑥𝑡) ∈ (𝐹𝑡))
24 simprr 811 . . . . . . . . . . . . 13 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → 𝑦 (∏t𝐹))
2524, 17eleqtrrd 2733 . . . . . . . . . . . 12 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → 𝑦X𝑡𝐴 (𝐹𝑡))
26 vex 3234 . . . . . . . . . . . . 13 𝑦 ∈ V
2726elixp 7957 . . . . . . . . . . . 12 (𝑦X𝑡𝐴 (𝐹𝑡) ↔ (𝑦 Fn 𝐴 ∧ ∀𝑡𝐴 (𝑦𝑡) ∈ (𝐹𝑡)))
2825, 27sylib 208 . . . . . . . . . . 11 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → (𝑦 Fn 𝐴 ∧ ∀𝑡𝐴 (𝑦𝑡) ∈ (𝐹𝑡)))
2928simprd 478 . . . . . . . . . 10 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → ∀𝑡𝐴 (𝑦𝑡) ∈ (𝐹𝑡))
3029r19.21bi 2961 . . . . . . . . 9 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ 𝑡𝐴) → (𝑦𝑡) ∈ (𝐹𝑡))
31 eqid 2651 . . . . . . . . . 10 (𝐹𝑡) = (𝐹𝑡)
3231pconncn 31332 . . . . . . . . 9 (((𝐹𝑡) ∈ PConn ∧ (𝑥𝑡) ∈ (𝐹𝑡) ∧ (𝑦𝑡) ∈ (𝐹𝑡)) → ∃𝑓 ∈ (II Cn (𝐹𝑡))((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡)))
3312, 23, 30, 32syl3anc 1366 . . . . . . . 8 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ 𝑡𝐴) → ∃𝑓 ∈ (II Cn (𝐹𝑡))((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡)))
34 df-rex 2947 . . . . . . . 8 (∃𝑓 ∈ (II Cn (𝐹𝑡))((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡)) ↔ ∃𝑓(𝑓 ∈ (II Cn (𝐹𝑡)) ∧ ((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡))))
3533, 34sylib 208 . . . . . . 7 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ 𝑡𝐴) → ∃𝑓(𝑓 ∈ (II Cn (𝐹𝑡)) ∧ ((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡))))
3610, 35syldan 486 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ 𝑡 ∈ ( I ‘𝐴)) → ∃𝑓(𝑓 ∈ (II Cn (𝐹𝑡)) ∧ ((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡))))
3736ralrimiva 2995 . . . . 5 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → ∀𝑡 ∈ ( I ‘𝐴)∃𝑓(𝑓 ∈ (II Cn (𝐹𝑡)) ∧ ((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡))))
38 fvex 6239 . . . . . 6 ( I ‘𝐴) ∈ V
39 eleq1 2718 . . . . . . 7 (𝑓 = (𝑔𝑡) → (𝑓 ∈ (II Cn (𝐹𝑡)) ↔ (𝑔𝑡) ∈ (II Cn (𝐹𝑡))))
40 fveq1 6228 . . . . . . . . 9 (𝑓 = (𝑔𝑡) → (𝑓‘0) = ((𝑔𝑡)‘0))
4140eqeq1d 2653 . . . . . . . 8 (𝑓 = (𝑔𝑡) → ((𝑓‘0) = (𝑥𝑡) ↔ ((𝑔𝑡)‘0) = (𝑥𝑡)))
42 fveq1 6228 . . . . . . . . 9 (𝑓 = (𝑔𝑡) → (𝑓‘1) = ((𝑔𝑡)‘1))
4342eqeq1d 2653 . . . . . . . 8 (𝑓 = (𝑔𝑡) → ((𝑓‘1) = (𝑦𝑡) ↔ ((𝑔𝑡)‘1) = (𝑦𝑡)))
4441, 43anbi12d 747 . . . . . . 7 (𝑓 = (𝑔𝑡) → (((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡)) ↔ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))
4539, 44anbi12d 747 . . . . . 6 (𝑓 = (𝑔𝑡) → ((𝑓 ∈ (II Cn (𝐹𝑡)) ∧ ((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡))) ↔ ((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡)))))
4638, 45ac6s2 9346 . . . . 5 (∀𝑡 ∈ ( I ‘𝐴)∃𝑓(𝑓 ∈ (II Cn (𝐹𝑡)) ∧ ((𝑓‘0) = (𝑥𝑡) ∧ (𝑓‘1) = (𝑦𝑡))) → ∃𝑔(𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡)))))
4737, 46syl 17 . . . 4 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → ∃𝑔(𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡)))))
48 iitopon 22729 . . . . . . 7 II ∈ (TopOn‘(0[,]1))
4948a1i 11 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → II ∈ (TopOn‘(0[,]1)))
50 simplll 813 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → 𝐴𝑉)
5111adantr 480 . . . . . . 7 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → 𝐹:𝐴⟶PConn)
5251, 4syl 17 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → 𝐹:𝐴⟶Top)
538adantr 480 . . . . . . . . . . . . 13 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → ( I ‘𝐴) = 𝐴)
5453eleq2d 2716 . . . . . . . . . . . 12 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → (𝑖 ∈ ( I ‘𝐴) ↔ 𝑖𝐴))
5554biimpar 501 . . . . . . . . . . 11 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → 𝑖 ∈ ( I ‘𝐴))
56 simprr 811 . . . . . . . . . . . 12 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))
57 fveq2 6229 . . . . . . . . . . . . . . 15 (𝑡 = 𝑖 → (𝑔𝑡) = (𝑔𝑖))
58 fveq2 6229 . . . . . . . . . . . . . . . 16 (𝑡 = 𝑖 → (𝐹𝑡) = (𝐹𝑖))
5958oveq2d 6706 . . . . . . . . . . . . . . 15 (𝑡 = 𝑖 → (II Cn (𝐹𝑡)) = (II Cn (𝐹𝑖)))
6057, 59eleq12d 2724 . . . . . . . . . . . . . 14 (𝑡 = 𝑖 → ((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ↔ (𝑔𝑖) ∈ (II Cn (𝐹𝑖))))
6157fveq1d 6231 . . . . . . . . . . . . . . . 16 (𝑡 = 𝑖 → ((𝑔𝑡)‘0) = ((𝑔𝑖)‘0))
62 fveq2 6229 . . . . . . . . . . . . . . . 16 (𝑡 = 𝑖 → (𝑥𝑡) = (𝑥𝑖))
6361, 62eqeq12d 2666 . . . . . . . . . . . . . . 15 (𝑡 = 𝑖 → (((𝑔𝑡)‘0) = (𝑥𝑡) ↔ ((𝑔𝑖)‘0) = (𝑥𝑖)))
6457fveq1d 6231 . . . . . . . . . . . . . . . 16 (𝑡 = 𝑖 → ((𝑔𝑡)‘1) = ((𝑔𝑖)‘1))
65 fveq2 6229 . . . . . . . . . . . . . . . 16 (𝑡 = 𝑖 → (𝑦𝑡) = (𝑦𝑖))
6664, 65eqeq12d 2666 . . . . . . . . . . . . . . 15 (𝑡 = 𝑖 → (((𝑔𝑡)‘1) = (𝑦𝑡) ↔ ((𝑔𝑖)‘1) = (𝑦𝑖)))
6763, 66anbi12d 747 . . . . . . . . . . . . . 14 (𝑡 = 𝑖 → ((((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡)) ↔ (((𝑔𝑖)‘0) = (𝑥𝑖) ∧ ((𝑔𝑖)‘1) = (𝑦𝑖))))
6860, 67anbi12d 747 . . . . . . . . . . . . 13 (𝑡 = 𝑖 → (((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))) ↔ ((𝑔𝑖) ∈ (II Cn (𝐹𝑖)) ∧ (((𝑔𝑖)‘0) = (𝑥𝑖) ∧ ((𝑔𝑖)‘1) = (𝑦𝑖)))))
6968rspccva 3339 . . . . . . . . . . . 12 ((∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))) ∧ 𝑖 ∈ ( I ‘𝐴)) → ((𝑔𝑖) ∈ (II Cn (𝐹𝑖)) ∧ (((𝑔𝑖)‘0) = (𝑥𝑖) ∧ ((𝑔𝑖)‘1) = (𝑦𝑖))))
7056, 69sylan 487 . . . . . . . . . . 11 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖 ∈ ( I ‘𝐴)) → ((𝑔𝑖) ∈ (II Cn (𝐹𝑖)) ∧ (((𝑔𝑖)‘0) = (𝑥𝑖) ∧ ((𝑔𝑖)‘1) = (𝑦𝑖))))
7155, 70syldan 486 . . . . . . . . . 10 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → ((𝑔𝑖) ∈ (II Cn (𝐹𝑖)) ∧ (((𝑔𝑖)‘0) = (𝑥𝑖) ∧ ((𝑔𝑖)‘1) = (𝑦𝑖))))
7271simpld 474 . . . . . . . . 9 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → (𝑔𝑖) ∈ (II Cn (𝐹𝑖)))
73 iiuni 22731 . . . . . . . . . 10 (0[,]1) = II
74 eqid 2651 . . . . . . . . . 10 (𝐹𝑖) = (𝐹𝑖)
7573, 74cnf 21098 . . . . . . . . 9 ((𝑔𝑖) ∈ (II Cn (𝐹𝑖)) → (𝑔𝑖):(0[,]1)⟶ (𝐹𝑖))
7672, 75syl 17 . . . . . . . 8 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → (𝑔𝑖):(0[,]1)⟶ (𝐹𝑖))
7776feqmptd 6288 . . . . . . 7 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → (𝑔𝑖) = (𝑧 ∈ (0[,]1) ↦ ((𝑔𝑖)‘𝑧)))
7877, 72eqeltrrd 2731 . . . . . 6 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → (𝑧 ∈ (0[,]1) ↦ ((𝑔𝑖)‘𝑧)) ∈ (II Cn (𝐹𝑖)))
7914, 49, 50, 52, 78ptcn 21478 . . . . 5 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) ∈ (II Cn (∏t𝐹)))
8071simprd 478 . . . . . . . 8 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → (((𝑔𝑖)‘0) = (𝑥𝑖) ∧ ((𝑔𝑖)‘1) = (𝑦𝑖)))
8180simpld 474 . . . . . . 7 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → ((𝑔𝑖)‘0) = (𝑥𝑖))
8281mpteq2dva 4777 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → (𝑖𝐴 ↦ ((𝑔𝑖)‘0)) = (𝑖𝐴 ↦ (𝑥𝑖)))
83 0elunit 12328 . . . . . . 7 0 ∈ (0[,]1)
84 mptexg 6525 . . . . . . . 8 (𝐴𝑉 → (𝑖𝐴 ↦ ((𝑔𝑖)‘0)) ∈ V)
8550, 84syl 17 . . . . . . 7 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → (𝑖𝐴 ↦ ((𝑔𝑖)‘0)) ∈ V)
86 fveq2 6229 . . . . . . . . 9 (𝑧 = 0 → ((𝑔𝑖)‘𝑧) = ((𝑔𝑖)‘0))
8786mpteq2dv 4778 . . . . . . . 8 (𝑧 = 0 → (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)) = (𝑖𝐴 ↦ ((𝑔𝑖)‘0)))
88 eqid 2651 . . . . . . . 8 (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) = (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))
8987, 88fvmptg 6319 . . . . . . 7 ((0 ∈ (0[,]1) ∧ (𝑖𝐴 ↦ ((𝑔𝑖)‘0)) ∈ V) → ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘0) = (𝑖𝐴 ↦ ((𝑔𝑖)‘0)))
9083, 85, 89sylancr 696 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘0) = (𝑖𝐴 ↦ ((𝑔𝑖)‘0)))
9121simpld 474 . . . . . . . 8 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → 𝑥 Fn 𝐴)
9291adantr 480 . . . . . . 7 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → 𝑥 Fn 𝐴)
93 dffn5 6280 . . . . . . 7 (𝑥 Fn 𝐴𝑥 = (𝑖𝐴 ↦ (𝑥𝑖)))
9492, 93sylib 208 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → 𝑥 = (𝑖𝐴 ↦ (𝑥𝑖)))
9582, 90, 943eqtr4d 2695 . . . . 5 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘0) = 𝑥)
9680simprd 478 . . . . . . 7 (((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) ∧ 𝑖𝐴) → ((𝑔𝑖)‘1) = (𝑦𝑖))
9796mpteq2dva 4777 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → (𝑖𝐴 ↦ ((𝑔𝑖)‘1)) = (𝑖𝐴 ↦ (𝑦𝑖)))
98 1elunit 12329 . . . . . . 7 1 ∈ (0[,]1)
99 mptexg 6525 . . . . . . . 8 (𝐴𝑉 → (𝑖𝐴 ↦ ((𝑔𝑖)‘1)) ∈ V)
10050, 99syl 17 . . . . . . 7 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → (𝑖𝐴 ↦ ((𝑔𝑖)‘1)) ∈ V)
101 fveq2 6229 . . . . . . . . 9 (𝑧 = 1 → ((𝑔𝑖)‘𝑧) = ((𝑔𝑖)‘1))
102101mpteq2dv 4778 . . . . . . . 8 (𝑧 = 1 → (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)) = (𝑖𝐴 ↦ ((𝑔𝑖)‘1)))
103102, 88fvmptg 6319 . . . . . . 7 ((1 ∈ (0[,]1) ∧ (𝑖𝐴 ↦ ((𝑔𝑖)‘1)) ∈ V) → ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘1) = (𝑖𝐴 ↦ ((𝑔𝑖)‘1)))
10498, 100, 103sylancr 696 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘1) = (𝑖𝐴 ↦ ((𝑔𝑖)‘1)))
10528simpld 474 . . . . . . . 8 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → 𝑦 Fn 𝐴)
106105adantr 480 . . . . . . 7 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → 𝑦 Fn 𝐴)
107 dffn5 6280 . . . . . . 7 (𝑦 Fn 𝐴𝑦 = (𝑖𝐴 ↦ (𝑦𝑖)))
108106, 107sylib 208 . . . . . 6 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → 𝑦 = (𝑖𝐴 ↦ (𝑦𝑖)))
10997, 104, 1083eqtr4d 2695 . . . . 5 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘1) = 𝑦)
110 fveq1 6228 . . . . . . . 8 (𝑓 = (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) → (𝑓‘0) = ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘0))
111110eqeq1d 2653 . . . . . . 7 (𝑓 = (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) → ((𝑓‘0) = 𝑥 ↔ ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘0) = 𝑥))
112 fveq1 6228 . . . . . . . 8 (𝑓 = (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) → (𝑓‘1) = ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘1))
113112eqeq1d 2653 . . . . . . 7 (𝑓 = (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) → ((𝑓‘1) = 𝑦 ↔ ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘1) = 𝑦))
114111, 113anbi12d 747 . . . . . 6 (𝑓 = (𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) → (((𝑓‘0) = 𝑥 ∧ (𝑓‘1) = 𝑦) ↔ (((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘0) = 𝑥 ∧ ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘1) = 𝑦)))
115114rspcev 3340 . . . . 5 (((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧))) ∈ (II Cn (∏t𝐹)) ∧ (((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘0) = 𝑥 ∧ ((𝑧 ∈ (0[,]1) ↦ (𝑖𝐴 ↦ ((𝑔𝑖)‘𝑧)))‘1) = 𝑦)) → ∃𝑓 ∈ (II Cn (∏t𝐹))((𝑓‘0) = 𝑥 ∧ (𝑓‘1) = 𝑦))
11679, 95, 109, 115syl12anc 1364 . . . 4 ((((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) ∧ (𝑔 Fn ( I ‘𝐴) ∧ ∀𝑡 ∈ ( I ‘𝐴)((𝑔𝑡) ∈ (II Cn (𝐹𝑡)) ∧ (((𝑔𝑡)‘0) = (𝑥𝑡) ∧ ((𝑔𝑡)‘1) = (𝑦𝑡))))) → ∃𝑓 ∈ (II Cn (∏t𝐹))((𝑓‘0) = 𝑥 ∧ (𝑓‘1) = 𝑦))
11747, 116exlimddv 1903 . . 3 (((𝐴𝑉𝐹:𝐴⟶PConn) ∧ (𝑥 (∏t𝐹) ∧ 𝑦 (∏t𝐹))) → ∃𝑓 ∈ (II Cn (∏t𝐹))((𝑓‘0) = 𝑥 ∧ (𝑓‘1) = 𝑦))
118117ralrimivva 3000 . 2 ((𝐴𝑉𝐹:𝐴⟶PConn) → ∀𝑥 (∏t𝐹)∀𝑦 (∏t𝐹)∃𝑓 ∈ (II Cn (∏t𝐹))((𝑓‘0) = 𝑥 ∧ (𝑓‘1) = 𝑦))
119 eqid 2651 . . 3 (∏t𝐹) = (∏t𝐹)
120119ispconn 31331 . 2 ((∏t𝐹) ∈ PConn ↔ ((∏t𝐹) ∈ Top ∧ ∀𝑥 (∏t𝐹)∀𝑦 (∏t𝐹)∃𝑓 ∈ (II Cn (∏t𝐹))((𝑓‘0) = 𝑥 ∧ (𝑓‘1) = 𝑦)))
1216, 118, 120sylanbrc 699 1 ((𝐴𝑉𝐹:𝐴⟶PConn) → (∏t𝐹) ∈ PConn)
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 383   = wceq 1523  ∃wex 1744   ∈ wcel 2030  ∀wral 2941  ∃wrex 2942  Vcvv 3231   ⊆ wss 3607  ∪ cuni 4468   ↦ cmpt 4762   I cid 5052   Fn wfn 5921  ⟶wf 5922  ‘cfv 5926  (class class class)co 6690  Xcixp 7950  0cc0 9974  1c1 9975  [,]cicc 12216  ∏tcpt 16146  Topctop 20746  TopOnctopon 20763   Cn ccn 21076  IIcii 22725  PConncpconn 31327 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-rep 4804  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991  ax-reg 8538  ax-inf2 8576  ax-ac2 9323  ax-cnex 10030  ax-resscn 10031  ax-1cn 10032  ax-icn 10033  ax-addcl 10034  ax-addrcl 10035  ax-mulcl 10036  ax-mulrcl 10037  ax-mulcom 10038  ax-addass 10039  ax-mulass 10040  ax-distr 10041  ax-i2m1 10042  ax-1ne0 10043  ax-1rid 10044  ax-rnegex 10045  ax-rrecex 10046  ax-cnre 10047  ax-pre-lttri 10048  ax-pre-lttrn 10049  ax-pre-ltadd 10050  ax-pre-mulgt0 10051  ax-pre-sup 10052 This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-nel 2927  df-ral 2946  df-rex 2947  df-reu 2948  df-rmo 2949  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-pss 3623  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-tp 4215  df-op 4217  df-uni 4469  df-int 4508  df-iun 4554  df-iin 4555  df-br 4686  df-opab 4746  df-mpt 4763  df-tr 4786  df-id 5053  df-eprel 5058  df-po 5064  df-so 5065  df-fr 5102  df-se 5103  df-we 5104  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-pred 5718  df-ord 5764  df-on 5765  df-lim 5766  df-suc 5767  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-isom 5935  df-riota 6651  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-om 7108  df-1st 7210  df-2nd 7211  df-wrecs 7452  df-recs 7513  df-rdg 7551  df-1o 7605  df-oadd 7609  df-er 7787  df-map 7901  df-ixp 7951  df-en 7998  df-dom 7999  df-sdom 8000  df-fin 8001  df-fi 8358  df-sup 8389  df-inf 8390  df-r1 8665  df-rank 8666  df-card 8803  df-ac 8977  df-pnf 10114  df-mnf 10115  df-xr 10116  df-ltxr 10117  df-le 10118  df-sub 10306  df-neg 10307  df-div 10723  df-nn 11059  df-2 11117  df-3 11118  df-n0 11331  df-z 11416  df-uz 11726  df-q 11827  df-rp 11871  df-xneg 11984  df-xadd 11985  df-xmul 11986  df-icc 12220  df-seq 12842  df-exp 12901  df-cj 13883  df-re 13884  df-im 13885  df-sqrt 14019  df-abs 14020  df-topgen 16151  df-pt 16152  df-psmet 19786  df-xmet 19787  df-met 19788  df-bl 19789  df-mopn 19790  df-top 20747  df-topon 20764  df-bases 20798  df-cn 21079  df-cnp 21080  df-ii 22727  df-pconn 31329 This theorem is referenced by: (None)
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