Theorem cvmseu 35863

Description: Every element in ∪ 𝑇 is a member of a unique element of 𝑇. (Contributed by Mario Carneiro, 14-Feb-2015.)

Hypotheses

Ref	Expression
cvmcov.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))))})
cvmseu.1	⊢ 𝐵 = ∪ 𝐶

Assertion

Ref	Expression
cvmseu	⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → ∃!𝑥 ∈ 𝑇 𝐴 ∈ 𝑥)

Distinct variable groups:   𝑘,𝑠,𝑢,𝑣,𝑥,𝐶   𝑘,𝐹,𝑠,𝑢,𝑣,𝑥   𝑘,𝐽,𝑠,𝑢,𝑣,𝑥   𝑥,𝑆   𝑈,𝑘,𝑠,𝑢,𝑣,𝑥   𝑇,𝑠,𝑢,𝑣,𝑥   𝑢,𝐴,𝑣,𝑥   𝑣,𝐵,𝑥

Allowed substitution hints:   𝐴(𝑘, 𝑠)   𝐵(𝑢, 𝑘, 𝑠)   𝑆(𝑣, 𝑢, 𝑘, 𝑠)   𝑇(𝑘)

Proof of Theorem cvmseu

Dummy variable 𝑧 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpr2 1214	. . . . 5 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → 𝐴 ∈ 𝐵)
2		simpr3 1215	. . . . 5 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → (𝐹‘𝐴) ∈ 𝑈)
3		cvmcn 35849	. . . . . . 7 ⊢ (𝐹 ∈ (𝐶 CovMap 𝐽) → 𝐹 ∈ (𝐶 Cn 𝐽))
4	3	adantr 486	. . . . . 6 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → 𝐹 ∈ (𝐶 Cn 𝐽))
5		cvmseu.1	. . . . . . 7 ⊢ 𝐵 = ∪ 𝐶
6		eqid 2762	. . . . . . 7 ⊢ ∪ 𝐽 = ∪ 𝐽
7	5, 6	cnf 23477	. . . . . 6 ⊢ (𝐹 ∈ (𝐶 Cn 𝐽) → 𝐹:𝐵⟶∪ 𝐽)
8		ffn 6706	. . . . . 6 ⊢ (𝐹:𝐵⟶∪ 𝐽 → 𝐹 Fn 𝐵)
9		elpreima 7054	. . . . . 6 ⊢ (𝐹 Fn 𝐵 → (𝐴 ∈ (◡𝐹 “ 𝑈) ↔ (𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)))
10	4, 7, 8, 9	4syl 20	. . . . 5 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → (𝐴 ∈ (◡𝐹 “ 𝑈) ↔ (𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)))
11	1, 2, 10	mpbir2and 726	. . . 4 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → 𝐴 ∈ (◡𝐹 “ 𝑈))
12		simpr1 1213	. . . . 5 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → 𝑇 ∈ (𝑆‘𝑈))
13		cvmcov.1	. . . . . 6 ⊢ 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))))})
14	13	cvmsuni 35856	. . . . 5 ⊢ (𝑇 ∈ (𝑆‘𝑈) → ∪ 𝑇 = (◡𝐹 “ 𝑈))
15	12, 14	syl 18	. . . 4 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → ∪ 𝑇 = (◡𝐹 “ 𝑈))
16	11, 15	eleqtrrd 2865	. . 3 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → 𝐴 ∈ ∪ 𝑇)
17		eluni2 4874	. . 3 ⊢ (𝐴 ∈ ∪ 𝑇 ↔ ∃𝑥 ∈ 𝑇 𝐴 ∈ 𝑥)
18	16, 17	sylib 221	. 2 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → ∃𝑥 ∈ 𝑇 𝐴 ∈ 𝑥)
19		inelcm 4421	. . . 4 ⊢ ((𝐴 ∈ 𝑥 ∧ 𝐴 ∈ 𝑧) → (𝑥 ∩ 𝑧) ≠ ∅)
20	13	cvmsdisj 35857	. . . . . . . 8 ⊢ ((𝑇 ∈ (𝑆‘𝑈) ∧ 𝑥 ∈ 𝑇 ∧ 𝑧 ∈ 𝑇) → (𝑥 = 𝑧 ∨ (𝑥 ∩ 𝑧) = ∅))
21	20	3expb 1138	. . . . . . 7 ⊢ ((𝑇 ∈ (𝑆‘𝑈) ∧ (𝑥 ∈ 𝑇 ∧ 𝑧 ∈ 𝑇)) → (𝑥 = 𝑧 ∨ (𝑥 ∩ 𝑧) = ∅))
22	12, 21	sylan 592	. . . . . 6 ⊢ (((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) ∧ (𝑥 ∈ 𝑇 ∧ 𝑧 ∈ 𝑇)) → (𝑥 = 𝑧 ∨ (𝑥 ∩ 𝑧) = ∅))
23	22	ord 878	. . . . 5 ⊢ (((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) ∧ (𝑥 ∈ 𝑇 ∧ 𝑧 ∈ 𝑇)) → (¬ 𝑥 = 𝑧 → (𝑥 ∩ 𝑧) = ∅))
24	23	necon1ad 2974	. . . 4 ⊢ (((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) ∧ (𝑥 ∈ 𝑇 ∧ 𝑧 ∈ 𝑇)) → ((𝑥 ∩ 𝑧) ≠ ∅ → 𝑥 = 𝑧))
25	19, 24	syl5 35	. . 3 ⊢ (((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) ∧ (𝑥 ∈ 𝑇 ∧ 𝑧 ∈ 𝑇)) → ((𝐴 ∈ 𝑥 ∧ 𝐴 ∈ 𝑧) → 𝑥 = 𝑧))
26	25	ralrimivva 3207	. 2 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → ∀𝑥 ∈ 𝑇 ∀𝑧 ∈ 𝑇 ((𝐴 ∈ 𝑥 ∧ 𝐴 ∈ 𝑧) → 𝑥 = 𝑧))
27		eleq2w 2846	. . 3 ⊢ (𝑥 = 𝑧 → (𝐴 ∈ 𝑥 ↔ 𝐴 ∈ 𝑧))
28	27	reu4 3692	. 2 ⊢ (∃!𝑥 ∈ 𝑇 𝐴 ∈ 𝑥 ↔ (∃𝑥 ∈ 𝑇 𝐴 ∈ 𝑥 ∧ ∀𝑥 ∈ 𝑇 ∀𝑧 ∈ 𝑇 ((𝐴 ∈ 𝑥 ∧ 𝐴 ∈ 𝑧) → 𝑥 = 𝑧)))
29	18, 26, 28	sylanbrc 595	1 ⊢ ((𝐹 ∈ (𝐶 CovMap 𝐽) ∧ (𝑇 ∈ (𝑆‘𝑈) ∧ 𝐴 ∈ 𝐵 ∧ (𝐹‘𝐴) ∈ 𝑈)) → ∃!𝑥 ∈ 𝑇 𝐴 ∈ 𝑥)

This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ wa 401   ∨ wo 861   ∧ w3a 1103   = wceq 1570   ∈ wcel 2145   ≠ wne 2957  ∀wral 3078  ∃wrex 3088  ∃!wreu 3365  {crab 3414   ∖ cdif 3899   ∩ cin 3901  ∅c0 4282  𝒫 cpw 4560  {csn 4587  ∪ cuni 4870   ↦ cmpt 5190  ^◡ccnv 5658   ↾ cres 5661   “ cima 5662   Fn wfn 6532  ⟶wf 6533  ‘cfv 6537  (class class class)co 7417   ↾_t crest 17511   Cn ccn 23455  Homeochmeo 23985   CovMap ccvm 35842

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 2215  ax-ext 2734  ax-sep 5255  ax-nul 5267  ax-pow 5334  ax-pr 5402  ax-un 7740

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-rmo 3367  df-reu 3368  df-rab 3415  df-v 3455  df-sbc 3743  df-csb 3851  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-pw 4562  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-br 5108  df-opab 5172  df-mpt 5191  df-id 5554  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-fv 6545  df-ov 7420  df-oprab 7421  df-mpo 7422  df-map 8832  df-top 23125  df-topon 23142  df-cn 23458  df-cvm 35843

This theorem is used by:  cvmsiota  35864