cvmliftmolem2 - Mathbox for Mario Carneiro

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Theorem cvmliftmolem2 36016

Description: Lemma for cvmliftmo 36018. (Contributed by Mario Carneiro, 10-Mar-2015.)

**Hypotheses**
Ref	Expression
cvmliftmo.b	⊢ 𝐵 = ∪ 𝐶
cvmliftmo.y	⊢ 𝑌 = ∪ 𝐾
cvmliftmo.f	⊢ (𝜑 → 𝐹 ∈ (𝐶 CovMap 𝐽))
cvmliftmo.k	⊢ (𝜑 → 𝐾 ∈ Conn)
cvmliftmo.l	⊢ (𝜑 → 𝐾 ∈ 𝑛-Locally Conn)
cvmliftmo.o	⊢ (𝜑 → 𝑂 ∈ 𝑌)
cvmliftmoi.m	⊢ (𝜑 → 𝑀 ∈ (𝐾 Cn 𝐶))
cvmliftmoi.n	⊢ (𝜑 → 𝑁 ∈ (𝐾 Cn 𝐶))
cvmliftmoi.g	⊢ (𝜑 → (𝐹 ∘ 𝑀) = (𝐹 ∘ 𝑁))
cvmliftmoi.p	⊢ (𝜑 → (𝑀‘𝑂) = (𝑁‘𝑂))
cvmliftmolem.1	⊢ 𝑆 = (𝑘 ∈ 𝐽 ↦ {𝑠 ∈ (𝒫 𝐶 ∖ {∅}) ∣ (∪ 𝑠 = (^◡𝐹 “ 𝑘) ∧ ∀𝑢 ∈ 𝑠 (∀𝑣 ∈ (𝑠 ∖ {𝑢})(𝑢 ∩ 𝑣) = ∅ ∧ (𝐹 ↾ 𝑢) ∈ ((𝐶 ↾_t 𝑢)Homeo(𝐽 ↾_t 𝑘))))})

**Assertion**
Ref	Expression
cvmliftmolem2	⊢ (𝜑 → 𝑀 = 𝑁)

Distinct variable groups: 𝑘,𝑠,𝑢,𝑣,𝐶 𝑘,𝐽,𝑠,𝑢,𝑣 𝑣,𝐵 𝐾,𝑠 𝑘,𝑀,𝑠,𝑢,𝑣 𝑁,𝑠 𝜑,𝑠 𝑘,𝐹,𝑠,𝑢,𝑣 𝑆,𝑠 𝑌,𝑠 Allowed substitution hints: 𝜑(𝑣, 𝑢, 𝑘) 𝐵(𝑢, 𝑘, 𝑠) 𝑆(𝑣, 𝑢, 𝑘) 𝐾(𝑣, 𝑢, 𝑘) 𝑁(𝑣, 𝑢, 𝑘) 𝑂(𝑣, 𝑢, 𝑘, 𝑠) 𝑌(𝑣, 𝑢, 𝑘)

Proof of Theorem cvmliftmolem2 Dummy variables 𝑎 𝑏 𝑡 𝑦 𝑧 𝑥 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		cvmliftmoi.m	. . 3 ⊢ (𝜑 → 𝑀 ∈ (𝐾 Cn 𝐶))
2		cvmliftmo.y	. . . 4 ⊢ 𝑌 = ∪ 𝐾
3		cvmliftmo.b	. . . 4 ⊢ 𝐵 = ∪ 𝐶
4	2, 3	cnf 23544	. . 3 ⊢ (𝑀 ∈ (𝐾 Cn 𝐶) → 𝑀:𝑌⟶𝐵)
5		ffn 6701	. . 3 ⊢ (𝑀:𝑌⟶𝐵 → 𝑀 Fn 𝑌)
6	1, 4, 5	3syl 19	. 2 ⊢ (𝜑 → 𝑀 Fn 𝑌)
7		cvmliftmoi.n	. . 3 ⊢ (𝜑 → 𝑁 ∈ (𝐾 Cn 𝐶))
8	2, 3	cnf 23544	. . 3 ⊢ (𝑁 ∈ (𝐾 Cn 𝐶) → 𝑁:𝑌⟶𝐵)
9		ffn 6701	. . 3 ⊢ (𝑁:𝑌⟶𝐵 → 𝑁 Fn 𝑌)
10	7, 8, 9	3syl 19	. 2 ⊢ (𝜑 → 𝑁 Fn 𝑌)
11		cvmliftmo.k	. . . . . 6 ⊢ (𝜑 → 𝐾 ∈ Conn)
12		inss1 4182	. . . . . . 7 ⊢ (𝐾 ∩ (Clsd‘𝐾)) ⊆ 𝐾
13		cvmliftmo.f	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐹 ∈ (𝐶 CovMap 𝐽))
14	13	adantr 486	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑌) → 𝐹 ∈ (𝐶 CovMap 𝐽))
15	1, 4	syl 18	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑀:𝑌⟶𝐵)
16	15	ffvelcdmda 7076	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑌) → (𝑀‘𝑥) ∈ 𝐵)
17		cvmcn 35996	. . . . . . . . . . . . . 14 ⊢ (𝐹 ∈ (𝐶 CovMap 𝐽) → 𝐹 ∈ (𝐶 Cn 𝐽))
18		eqid 2761	. . . . . . . . . . . . . . 15 ⊢ ∪ 𝐽 = ∪ 𝐽
19	3, 18	cnf 23544	. . . . . . . . . . . . . 14 ⊢ (𝐹 ∈ (𝐶 Cn 𝐽) → 𝐹:𝐵⟶∪ 𝐽)
20	13, 17, 19	3syl 19	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐹:𝐵⟶∪ 𝐽)
21	20	ffvelcdmda 7076	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ (𝑀‘𝑥) ∈ 𝐵) → (𝐹‘(𝑀‘𝑥)) ∈ ∪ 𝐽)
22	16, 21	syldan 603	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑌) → (𝐹‘(𝑀‘𝑥)) ∈ ∪ 𝐽)
23		cvmliftmolem.1	. . . . . . . . . . . 12 ⊢ 𝑆 = (𝑘 ∈ 𝐽 ↦ {𝑠 ∈ (𝒫 𝐶 ∖ {∅}) ∣ (∪ 𝑠 = (^◡𝐹 “ 𝑘) ∧ ∀𝑢 ∈ 𝑠 (∀𝑣 ∈ (𝑠 ∖ {𝑢})(𝑢 ∩ 𝑣) = ∅ ∧ (𝐹 ↾ 𝑢) ∈ ((𝐶 ↾_t 𝑢)Homeo(𝐽 ↾_t 𝑘))))})
24	23, 18	cvmcov 35997	. . . . . . . . . . 11 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝐹‘(𝑀‘𝑥)) ∈ ∪ 𝐽) → ∃𝑎 ∈ 𝐽 ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ (𝑆‘𝑎) ≠ ∅))
25	14, 22, 24	syl2anc 596	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑌) → ∃𝑎 ∈ 𝐽 ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ (𝑆‘𝑎) ≠ ∅))
26		n0 4300	. . . . . . . . . . . . . 14 ⊢ ((𝑆‘𝑎) ≠ ∅ ↔ ∃𝑡 𝑡 ∈ (𝑆‘𝑎))
27		cvmliftmo.l	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝜑 → 𝐾 ∈ 𝑛-Locally Conn)
28	27	adantr 486	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝐾 ∈ 𝑛-Locally Conn)
29	1	adantr 486	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝑀 ∈ (𝐾 Cn 𝐶))
30		simprrr 794	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝑡 ∈ (𝑆‘𝑎))
31	23	cvmsss 36001	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑡 ∈ (𝑆‘𝑎) → 𝑡 ⊆ 𝐶)
32	30, 31	syl 18	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝑡 ⊆ 𝐶)
33	13	adantr 486	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝐹 ∈ (𝐶 CovMap 𝐽))
34	15	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝑀:𝑌⟶𝐵)
35		simprll 791	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝑥 ∈ 𝑌)
36	34, 35	ffvelcdmd 7077	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (𝑀‘𝑥) ∈ 𝐵)
37		simprrl 793	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (𝐹‘(𝑀‘𝑥)) ∈ 𝑎)
38		eqid 2761	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏) = (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)
39	23, 3, 38	cvmsiota 36011	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑡 ∈ (𝑆‘𝑎) ∧ (𝑀‘𝑥) ∈ 𝐵 ∧ (𝐹‘(𝑀‘𝑥)) ∈ 𝑎)) → ((℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏) ∈ 𝑡 ∧ (𝑀‘𝑥) ∈ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)))
40	33, 30, 36, 37, 39	syl13anc 1399	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → ((℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏) ∈ 𝑡 ∧ (𝑀‘𝑥) ∈ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)))
41	40	simpld 500	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏) ∈ 𝑡)
42	32, 41	sseldd 3932	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏) ∈ 𝐶)
43		cnima 23563	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑀 ∈ (𝐾 Cn 𝐶) ∧ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏) ∈ 𝐶) → (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∈ 𝐾)
44	29, 42, 43	syl2anc 596	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∈ 𝐾)
45	40	simprd 501	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (𝑀‘𝑥) ∈ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))
46		elpreima 7049	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑀 Fn 𝑌 → (𝑥 ∈ (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ↔ (𝑥 ∈ 𝑌 ∧ (𝑀‘𝑥) ∈ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))))
47	34, 5, 46	3syl 19	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (𝑥 ∈ (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ↔ (𝑥 ∈ 𝑌 ∧ (𝑀‘𝑥) ∈ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))))
48	35, 45, 47	mpbir2and 726	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → 𝑥 ∈ (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)))
49		nlly2i 23775	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐾 ∈ 𝑛-Locally Conn ∧ (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∈ 𝐾 ∧ 𝑥 ∈ (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))) → ∃𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn))
50	28, 44, 48, 49	syl3anc 1398	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → ∃𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn))
51		simprr1 1240	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ ((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn))) → 𝑥 ∈ 𝑦)
52		cvmliftmo.o	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝜑 → 𝑂 ∈ 𝑌)
53		cvmliftmoi.g	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝜑 → (𝐹 ∘ 𝑀) = (𝐹 ∘ 𝑁))
54		cvmliftmoi.p	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝜑 → (𝑀‘𝑂) = (𝑁‘𝑂))
55		simplrr 790	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦)) → 𝑡 ∈ (𝑆‘𝑎))
56	55	adantl 487	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑡 ∈ (𝑆‘𝑎))
57	41	adantrr 730	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏) ∈ 𝑡)
58		simplll 787	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦) → 𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)))
59	58	ad2antll 742	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)))
60	59	elpwid 4566	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑠 ⊆ (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)))
61		simplr3 1236	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦) → (𝐾 ↾_t 𝑠) ∈ Conn)
62	61	ad2antll 742	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → (𝐾 ↾_t 𝑠) ∈ Conn)
63		simplr2 1235	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦) → 𝑦 ⊆ 𝑠)
64	63	ad2antll 742	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑦 ⊆ 𝑠)
65		simprr1 1240	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ⊢ ((((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ ((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn))) → 𝑥 ∈ 𝑦)
66	65	adantl 487	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ ((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)))) → 𝑥 ∈ 𝑦)
67	66	adantrrr 738	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑥 ∈ 𝑦)
68	64, 67	sseldd 3932	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑥 ∈ 𝑠)
69		simprrr 794	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑧 ∈ 𝑦)
70	64, 69	sseldd 3932	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → 𝑧 ∈ 𝑠)
71	37	adantrr 730	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → (𝐹‘(𝑀‘𝑥)) ∈ 𝑎)
72	3, 2, 13, 11, 27, 52, 1, 7, 53, 54, 23, 56, 57, 60, 62, 68, 68, 70, 71	cvmliftmolem1 36015	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → (𝑥 ∈ dom (𝑀 ∩ 𝑁) → 𝑧 ∈ dom (𝑀 ∩ 𝑁)))
73	3, 2, 13, 11, 27, 52, 1, 7, 53, 54, 23, 56, 57, 60, 62, 68, 70, 68, 71	cvmliftmolem1 36015	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → (𝑧 ∈ dom (𝑀 ∩ 𝑁) → 𝑥 ∈ dom (𝑀 ∩ 𝑁)))
74	72, 73	impbid 215	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝜑 ∧ (((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦))) → (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))
75	74	anassrs 473	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ (((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn)) ∧ 𝑧 ∈ 𝑦)) → (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))
76	75	anassrs 473	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ ((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn))) ∧ 𝑧 ∈ 𝑦) → (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))
77	76	ralrimiva 3155	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ ((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn))) → ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))
78	51, 77	jca 521	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ ((𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾) ∧ (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn))) → (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁))))
79	78	expr 462	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ (𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏)) ∧ 𝑦 ∈ 𝐾)) → ((𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn) → (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
80	79	anassrs 473	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ 𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))) ∧ 𝑦 ∈ 𝐾) → ((𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn) → (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
81	80	reximdva 3176	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) ∧ 𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))) → (∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
82	81	rexlimdva 3164	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → (∃𝑠 ∈ 𝒫 (^◡𝑀 “ (℩𝑏 ∈ 𝑡 (𝑀‘𝑥) ∈ 𝑏))∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ 𝑦 ⊆ 𝑠 ∧ (𝐾 ↾_t 𝑠) ∈ Conn) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
83	50, 82	mpd 16	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ ((𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎)))) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁))))
84	83	anassrs 473	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ (𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽)) ∧ ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ 𝑡 ∈ (𝑆‘𝑎))) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁))))
85	84	expr 462	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ (𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽)) ∧ (𝐹‘(𝑀‘𝑥)) ∈ 𝑎) → (𝑡 ∈ (𝑆‘𝑎) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
86	85	exlimdv 1966	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ (𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽)) ∧ (𝐹‘(𝑀‘𝑥)) ∈ 𝑎) → (∃𝑡 𝑡 ∈ (𝑆‘𝑎) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
87	26, 86	biimtrid 245	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ (𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽)) ∧ (𝐹‘(𝑀‘𝑥)) ∈ 𝑎) → ((𝑆‘𝑎) ≠ ∅ → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
88	87	expimpd 459	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑌 ∧ 𝑎 ∈ 𝐽)) → (((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ (𝑆‘𝑎) ≠ ∅) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
89	88	anassrs 473	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑌) ∧ 𝑎 ∈ 𝐽) → (((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ (𝑆‘𝑎) ≠ ∅) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
90	89	rexlimdva 3164	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑌) → (∃𝑎 ∈ 𝐽 ((𝐹‘(𝑀‘𝑥)) ∈ 𝑎 ∧ (𝑆‘𝑎) ≠ ∅) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
91	25, 90	mpd 16	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑌) → ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁))))
92	91	ralrimiva 3155	. . . . . . . 8 ⊢ (𝜑 → ∀𝑥 ∈ 𝑌 ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁))))
93		conntop 23715	. . . . . . . . . 10 ⊢ (𝐾 ∈ Conn → 𝐾 ∈ Top)
94	11, 93	syl 18	. . . . . . . . 9 ⊢ (𝜑 → 𝐾 ∈ Top)
95		fndmin 7036	. . . . . . . . . . 11 ⊢ ((𝑀 Fn 𝑌 ∧ 𝑁 Fn 𝑌) → dom (𝑀 ∩ 𝑁) = {𝑥 ∈ 𝑌 ∣ (𝑀‘𝑥) = (𝑁‘𝑥)})
96	6, 10, 95	syl2anc 596	. . . . . . . . . 10 ⊢ (𝜑 → dom (𝑀 ∩ 𝑁) = {𝑥 ∈ 𝑌 ∣ (𝑀‘𝑥) = (𝑁‘𝑥)})
97		ssrab2 4028	. . . . . . . . . 10 ⊢ {𝑥 ∈ 𝑌 ∣ (𝑀‘𝑥) = (𝑁‘𝑥)} ⊆ 𝑌
98	96, 97	eqsstrdi 3975	. . . . . . . . 9 ⊢ (𝜑 → dom (𝑀 ∩ 𝑁) ⊆ 𝑌)
99	2	isclo 23385	. . . . . . . . 9 ⊢ ((𝐾 ∈ Top ∧ dom (𝑀 ∩ 𝑁) ⊆ 𝑌) → (dom (𝑀 ∩ 𝑁) ∈ (𝐾 ∩ (Clsd‘𝐾)) ↔ ∀𝑥 ∈ 𝑌 ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
100	94, 98, 99	syl2anc 596	. . . . . . . 8 ⊢ (𝜑 → (dom (𝑀 ∩ 𝑁) ∈ (𝐾 ∩ (Clsd‘𝐾)) ↔ ∀𝑥 ∈ 𝑌 ∃𝑦 ∈ 𝐾 (𝑥 ∈ 𝑦 ∧ ∀𝑧 ∈ 𝑦 (𝑥 ∈ dom (𝑀 ∩ 𝑁) ↔ 𝑧 ∈ dom (𝑀 ∩ 𝑁)))))
101	92, 100	mpbird 260	. . . . . . 7 ⊢ (𝜑 → dom (𝑀 ∩ 𝑁) ∈ (𝐾 ∩ (Clsd‘𝐾)))
102	12, 101	sselid 3929	. . . . . 6 ⊢ (𝜑 → dom (𝑀 ∩ 𝑁) ∈ 𝐾)
103		fveq2 6877	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑂 → (𝑀‘𝑥) = (𝑀‘𝑂))
104		fveq2 6877	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑂 → (𝑁‘𝑥) = (𝑁‘𝑂))
105	103, 104	eqeq12d 2777	. . . . . . . . . 10 ⊢ (𝑥 = 𝑂 → ((𝑀‘𝑥) = (𝑁‘𝑥) ↔ (𝑀‘𝑂) = (𝑁‘𝑂)))
106	105	elrab 3645	. . . . . . . . 9 ⊢ (𝑂 ∈ {𝑥 ∈ 𝑌 ∣ (𝑀‘𝑥) = (𝑁‘𝑥)} ↔ (𝑂 ∈ 𝑌 ∧ (𝑀‘𝑂) = (𝑁‘𝑂)))
107	52, 54, 106	sylanbrc 595	. . . . . . . 8 ⊢ (𝜑 → 𝑂 ∈ {𝑥 ∈ 𝑌 ∣ (𝑀‘𝑥) = (𝑁‘𝑥)})
108	107, 96	eleqtrrd 2864	. . . . . . 7 ⊢ (𝜑 → 𝑂 ∈ dom (𝑀 ∩ 𝑁))
109	108	ne0d 4288	. . . . . 6 ⊢ (𝜑 → dom (𝑀 ∩ 𝑁) ≠ ∅)
110		inss2 4183	. . . . . . 7 ⊢ (𝐾 ∩ (Clsd‘𝐾)) ⊆ (Clsd‘𝐾)
111	110, 101	sselid 3929	. . . . . 6 ⊢ (𝜑 → dom (𝑀 ∩ 𝑁) ∈ (Clsd‘𝐾))
112	2, 11, 102, 109, 111	connclo 23713	. . . . 5 ⊢ (𝜑 → dom (𝑀 ∩ 𝑁) = 𝑌)
113	112, 96	eqtr3d 2798	. . . 4 ⊢ (𝜑 → 𝑌 = {𝑥 ∈ 𝑌 ∣ (𝑀‘𝑥) = (𝑁‘𝑥)})
114		rabid2 3445	. . . 4 ⊢ (𝑌 = {𝑥 ∈ 𝑌 ∣ (𝑀‘𝑥) = (𝑁‘𝑥)} ↔ ∀𝑥 ∈ 𝑌 (𝑀‘𝑥) = (𝑁‘𝑥))
115	113, 114	sylib 221	. . 3 ⊢ (𝜑 → ∀𝑥 ∈ 𝑌 (𝑀‘𝑥) = (𝑁‘𝑥))
116	115	r19.21bi 3255	. 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑌) → (𝑀‘𝑥) = (𝑁‘𝑥))
117	6, 10, 116	eqfnfvd 7024	1 ⊢ (𝜑 → 𝑀 = 𝑁)

Colors of variables: wff setvar class

This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∃wex 1812 ∈ wcel 2145 ≠ wne 2956 ∀wral 3077 ∃wrex 3087 {crab 3413 ∖ cdif 3896 ∩ cin 3898 ⊆ wss 3899 ∅c0 4279 𝒫 cpw 4557 {csn 4584 ∪ cuni 4867 ↦ cmpt 5186 ^◡ccnv 5650 dom cdm 5651 ↾ cres 5653 “ cima 5654 ∘ ccom 5655 Fn wfn 6526 ⟶wf 6527 ‘cfv 6531 ℩crio 7368 (class class class)co 7412 ↾_t crest 17571 Topctop 23191 Clsdccld 23314 Cn ccn 23522 Conncconn 23709 𝑛-Locally cnlly 23764 Homeochmeo 24052 CovMap ccvm 35989

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740

This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-1st 7990 df-2nd 7991 df-map 8833 df-en 8958 df-fin 8961 df-fi 9387 df-rest 17573 df-topgen 17594 df-top 23192 df-topon 23209 df-bases 23244 df-cld 23317 df-nei 23396 df-cn 23525 df-conn 23710 df-nlly 23766 df-hmeo 24054 df-cvm 35990

This theorem is used by: cvmliftmoi 36017

W3C validator