Theorem llycmpkgen2 21574

Description: A locally compact space is compactly generated. (This variant of llycmpkgen 21576 uses the weaker definition of locally compact, "every point has a compact neighborhood", instead of "every point has a local base of compact neighborhoods".) (Contributed by Mario Carneiro, 21-Mar-2015.)

Hypotheses

Ref	Expression
iskgen3.1	⊢ 𝑋 = ∪ 𝐽
llycmpkgen2.2	⊢ (𝜑 → 𝐽 ∈ Top)
llycmpkgen2.3	⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝐽 ↾t 𝑘) ∈ Comp)

Assertion

Ref	Expression
llycmpkgen2	⊢ (𝜑 → 𝐽 ∈ ran 𝑘Gen)

Distinct variable groups:   𝑥,𝑘,𝐽   𝜑,𝑘,𝑥   𝑘,𝑋

Allowed substitution hint:   𝑋(𝑥)

Proof of Theorem llycmpkgen2

Dummy variables 𝑢 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		llycmpkgen2.2	. 2 ⊢ (𝜑 → 𝐽 ∈ Top)
2		elssuni 4603	. . . . . . . . . . 11 ⊢ (𝑢 ∈ (𝑘Gen‘𝐽) → 𝑢 ⊆ ∪ (𝑘Gen‘𝐽))
3	2	adantl 467	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) → 𝑢 ⊆ ∪ (𝑘Gen‘𝐽))
4		iskgen3.1	. . . . . . . . . . . . 13 ⊢ 𝑋 = ∪ 𝐽
5	4	kgenuni 21563	. . . . . . . . . . . 12 ⊢ (𝐽 ∈ Top → 𝑋 = ∪ (𝑘Gen‘𝐽))
6	1, 5	syl 17	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑋 = ∪ (𝑘Gen‘𝐽))
7	6	adantr 466	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) → 𝑋 = ∪ (𝑘Gen‘𝐽))
8	3, 7	sseqtr4d 3791	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) → 𝑢 ⊆ 𝑋)
9	8	sselda 3752	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) → 𝑥 ∈ 𝑋)
10		llycmpkgen2.3	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝐽 ↾t 𝑘) ∈ Comp)
11	10	adantlr 694	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑋) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝐽 ↾t 𝑘) ∈ Comp)
12	9, 11	syldan 579	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝐽 ↾t 𝑘) ∈ Comp)
13	1	ad3antrrr 709	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝐽 ∈ Top)
14		difss 3888	. . . . . . . . . 10 ⊢ (𝑋 ∖ (𝑘 ∖ 𝑢)) ⊆ 𝑋
15	4	ntropn 21074	. . . . . . . . . 10 ⊢ ((𝐽 ∈ Top ∧ (𝑋 ∖ (𝑘 ∖ 𝑢)) ⊆ 𝑋) → ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∈ 𝐽)
16	13, 14, 15	sylancl 574	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∈ 𝐽)
17		simprl 754	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑘 ∈ ((nei‘𝐽)‘{𝑥}))
18	4	neii1 21131	. . . . . . . . . . 11 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ∈ ((nei‘𝐽)‘{𝑥})) → 𝑘 ⊆ 𝑋)
19	13, 17, 18	syl2anc 573	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑘 ⊆ 𝑋)
20	4	ntropn 21074	. . . . . . . . . 10 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ⊆ 𝑋) → ((int‘𝐽)‘𝑘) ∈ 𝐽)
21	13, 19, 20	syl2anc 573	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘𝐽)‘𝑘) ∈ 𝐽)
22		inopn 20924	. . . . . . . . 9 ⊢ ((𝐽 ∈ Top ∧ ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∈ 𝐽 ∧ ((int‘𝐽)‘𝑘) ∈ 𝐽) → (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ∈ 𝐽)
23	13, 16, 21, 22	syl3anc 1476	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ∈ 𝐽)
24		inss1 3981	. . . . . . . . . . 11 ⊢ (((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘))) ∩ 𝑘) ⊆ ((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘)))
25		simplr 752	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ 𝑢)
26	4	ntrss2 21082	. . . . . . . . . . . . . . 15 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ⊆ 𝑋) → ((int‘𝐽)‘𝑘) ⊆ 𝑘)
27	13, 19, 26	syl2anc 573	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘𝐽)‘𝑘) ⊆ 𝑘)
28	9	adantr 466	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ 𝑋)
29	28	snssd 4475	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → {𝑥} ⊆ 𝑋)
30	4	neiint 21129	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐽 ∈ Top ∧ {𝑥} ⊆ 𝑋 ∧ 𝑘 ⊆ 𝑋) → (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ↔ {𝑥} ⊆ ((int‘𝐽)‘𝑘)))
31	13, 29, 19, 30	syl3anc 1476	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ↔ {𝑥} ⊆ ((int‘𝐽)‘𝑘)))
32	17, 31	mpbid 222	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → {𝑥} ⊆ ((int‘𝐽)‘𝑘))
33		vex 3354	. . . . . . . . . . . . . . . 16 ⊢ 𝑥 ∈ V
34	33	snss 4451	. . . . . . . . . . . . . . 15 ⊢ (𝑥 ∈ ((int‘𝐽)‘𝑘) ↔ {𝑥} ⊆ ((int‘𝐽)‘𝑘))
35	32, 34	sylibr 224	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ ((int‘𝐽)‘𝑘))
36	27, 35	sseldd 3753	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ 𝑘)
37	25, 36	elind 3949	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ (𝑢 ∩ 𝑘))
38		simpllr 760	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑢 ∈ (𝑘Gen‘𝐽))
39		simprr 756	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝐽 ↾t 𝑘) ∈ Comp)
40		kgeni 21561	. . . . . . . . . . . . . . 15 ⊢ ((𝑢 ∈ (𝑘Gen‘𝐽) ∧ (𝐽 ↾t 𝑘) ∈ Comp) → (𝑢 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))
41	38, 39, 40	syl2anc 573	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝑢 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))
42		vex 3354	. . . . . . . . . . . . . . . 16 ⊢ 𝑘 ∈ V
43		resttop 21185	. . . . . . . . . . . . . . . 16 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ∈ V) → (𝐽 ↾t 𝑘) ∈ Top)
44	13, 42, 43	sylancl 574	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝐽 ↾t 𝑘) ∈ Top)
45		inss2 3982	. . . . . . . . . . . . . . . 16 ⊢ (𝑢 ∩ 𝑘) ⊆ 𝑘
46	4	restuni 21187	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ⊆ 𝑋) → 𝑘 = ∪ (𝐽 ↾t 𝑘))
47	13, 19, 46	syl2anc 573	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑘 = ∪ (𝐽 ↾t 𝑘))
48	45, 47	syl5sseq 3802	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝑢 ∩ 𝑘) ⊆ ∪ (𝐽 ↾t 𝑘))
49		eqid 2771	. . . . . . . . . . . . . . . 16 ⊢ ∪ (𝐽 ↾t 𝑘) = ∪ (𝐽 ↾t 𝑘)
50	49	isopn3 21091	. . . . . . . . . . . . . . 15 ⊢ (((𝐽 ↾t 𝑘) ∈ Top ∧ (𝑢 ∩ 𝑘) ⊆ ∪ (𝐽 ↾t 𝑘)) → ((𝑢 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘) ↔ ((int‘(𝐽 ↾t 𝑘))‘(𝑢 ∩ 𝑘)) = (𝑢 ∩ 𝑘)))
51	44, 48, 50	syl2anc 573	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((𝑢 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘) ↔ ((int‘(𝐽 ↾t 𝑘))‘(𝑢 ∩ 𝑘)) = (𝑢 ∩ 𝑘)))
52	41, 51	mpbid 222	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘(𝐽 ↾t 𝑘))‘(𝑢 ∩ 𝑘)) = (𝑢 ∩ 𝑘))
53	45	a1i 11	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝑢 ∩ 𝑘) ⊆ 𝑘)
54		eqid 2771	. . . . . . . . . . . . . . 15 ⊢ (𝐽 ↾t 𝑘) = (𝐽 ↾t 𝑘)
55	4, 54	restntr 21207	. . . . . . . . . . . . . 14 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ⊆ 𝑋 ∧ (𝑢 ∩ 𝑘) ⊆ 𝑘) → ((int‘(𝐽 ↾t 𝑘))‘(𝑢 ∩ 𝑘)) = (((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘))) ∩ 𝑘))
56	13, 19, 53, 55	syl3anc 1476	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘(𝐽 ↾t 𝑘))‘(𝑢 ∩ 𝑘)) = (((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘))) ∩ 𝑘))
57	52, 56	eqtr3d 2807	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝑢 ∩ 𝑘) = (((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘))) ∩ 𝑘))
58	37, 57	eleqtrd 2852	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ (((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘))) ∩ 𝑘))
59	24, 58	sseldi 3750	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ ((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘))))
60		undif3 4037	. . . . . . . . . . . . 13 ⊢ ((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘)) = (((𝑢 ∩ 𝑘) ∪ 𝑋) ∖ (𝑘 ∖ (𝑢 ∩ 𝑘)))
61		incom 3956	. . . . . . . . . . . . . . . 16 ⊢ (𝑢 ∩ 𝑘) = (𝑘 ∩ 𝑢)
62	61	difeq2i 3876	. . . . . . . . . . . . . . 15 ⊢ (𝑘 ∖ (𝑢 ∩ 𝑘)) = (𝑘 ∖ (𝑘 ∩ 𝑢))
63		difin 4010	. . . . . . . . . . . . . . 15 ⊢ (𝑘 ∖ (𝑘 ∩ 𝑢)) = (𝑘 ∖ 𝑢)
64	62, 63	eqtri 2793	. . . . . . . . . . . . . 14 ⊢ (𝑘 ∖ (𝑢 ∩ 𝑘)) = (𝑘 ∖ 𝑢)
65	64	difeq2i 3876	. . . . . . . . . . . . 13 ⊢ (((𝑢 ∩ 𝑘) ∪ 𝑋) ∖ (𝑘 ∖ (𝑢 ∩ 𝑘))) = (((𝑢 ∩ 𝑘) ∪ 𝑋) ∖ (𝑘 ∖ 𝑢))
66	60, 65	eqtri 2793	. . . . . . . . . . . 12 ⊢ ((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘)) = (((𝑢 ∩ 𝑘) ∪ 𝑋) ∖ (𝑘 ∖ 𝑢))
67	45, 19	syl5ss 3763	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (𝑢 ∩ 𝑘) ⊆ 𝑋)
68		ssequn1 3934	. . . . . . . . . . . . . 14 ⊢ ((𝑢 ∩ 𝑘) ⊆ 𝑋 ↔ ((𝑢 ∩ 𝑘) ∪ 𝑋) = 𝑋)
69	67, 68	sylib 208	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((𝑢 ∩ 𝑘) ∪ 𝑋) = 𝑋)
70	69	difeq1d 3878	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (((𝑢 ∩ 𝑘) ∪ 𝑋) ∖ (𝑘 ∖ 𝑢)) = (𝑋 ∖ (𝑘 ∖ 𝑢)))
71	66, 70	syl5eq 2817	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘)) = (𝑋 ∖ (𝑘 ∖ 𝑢)))
72	71	fveq2d 6336	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘𝐽)‘((𝑢 ∩ 𝑘) ∪ (𝑋 ∖ 𝑘))) = ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))))
73	59, 72	eleqtrd 2852	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))))
74	73, 35	elind 3949	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → 𝑥 ∈ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)))
75		sslin 3987	. . . . . . . . . 10 ⊢ (((int‘𝐽)‘𝑘) ⊆ 𝑘 → (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ⊆ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ 𝑘))
76	27, 75	syl 17	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ⊆ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ 𝑘))
77	4	ntrss2 21082	. . . . . . . . . . . 12 ⊢ ((𝐽 ∈ Top ∧ (𝑋 ∖ (𝑘 ∖ 𝑢)) ⊆ 𝑋) → ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ⊆ (𝑋 ∖ (𝑘 ∖ 𝑢)))
78	13, 14, 77	sylancl 574	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ⊆ (𝑋 ∖ (𝑘 ∖ 𝑢)))
79	78	difss2d 3891	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ⊆ 𝑋)
80		reldisj 4163	. . . . . . . . . . . 12 ⊢ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ⊆ 𝑋 → ((((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ (𝑘 ∖ 𝑢)) = ∅ ↔ ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ⊆ (𝑋 ∖ (𝑘 ∖ 𝑢))))
81	79, 80	syl 17	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ((((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ (𝑘 ∖ 𝑢)) = ∅ ↔ ((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ⊆ (𝑋 ∖ (𝑘 ∖ 𝑢))))
82	78, 81	mpbird 247	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ (𝑘 ∖ 𝑢)) = ∅)
83		inssdif0 4094	. . . . . . . . . 10 ⊢ ((((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ 𝑘) ⊆ 𝑢 ↔ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ (𝑘 ∖ 𝑢)) = ∅)
84	82, 83	sylibr 224	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ 𝑘) ⊆ 𝑢)
85	76, 84	sstrd 3762	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ⊆ 𝑢)
86		eleq2 2839	. . . . . . . . . 10 ⊢ (𝑧 = (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) → (𝑥 ∈ 𝑧 ↔ 𝑥 ∈ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘))))
87		sseq1 3775	. . . . . . . . . 10 ⊢ (𝑧 = (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) → (𝑧 ⊆ 𝑢 ↔ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ⊆ 𝑢))
88	86, 87	anbi12d 616	. . . . . . . . 9 ⊢ (𝑧 = (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) → ((𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢) ↔ (𝑥 ∈ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ∧ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ⊆ 𝑢)))
89	88	rspcev 3460	. . . . . . . 8 ⊢ (((((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ∈ 𝐽 ∧ (𝑥 ∈ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ∧ (((int‘𝐽)‘(𝑋 ∖ (𝑘 ∖ 𝑢))) ∩ ((int‘𝐽)‘𝑘)) ⊆ 𝑢)) → ∃𝑧 ∈ 𝐽 (𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢))
90	23, 74, 85, 89	syl12anc 1474	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) ∧ (𝑘 ∈ ((nei‘𝐽)‘{𝑥}) ∧ (𝐽 ↾t 𝑘) ∈ Comp)) → ∃𝑧 ∈ 𝐽 (𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢))
91	12, 90	rexlimddv 3183	. . . . . 6 ⊢ (((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) ∧ 𝑥 ∈ 𝑢) → ∃𝑧 ∈ 𝐽 (𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢))
92	91	ralrimiva 3115	. . . . 5 ⊢ ((𝜑 ∧ 𝑢 ∈ (𝑘Gen‘𝐽)) → ∀𝑥 ∈ 𝑢 ∃𝑧 ∈ 𝐽 (𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢))
93	92	ex 397	. . . 4 ⊢ (𝜑 → (𝑢 ∈ (𝑘Gen‘𝐽) → ∀𝑥 ∈ 𝑢 ∃𝑧 ∈ 𝐽 (𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢)))
94		eltop2 21000	. . . . 5 ⊢ (𝐽 ∈ Top → (𝑢 ∈ 𝐽 ↔ ∀𝑥 ∈ 𝑢 ∃𝑧 ∈ 𝐽 (𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢)))
95	1, 94	syl 17	. . . 4 ⊢ (𝜑 → (𝑢 ∈ 𝐽 ↔ ∀𝑥 ∈ 𝑢 ∃𝑧 ∈ 𝐽 (𝑥 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑢)))
96	93, 95	sylibrd 249	. . 3 ⊢ (𝜑 → (𝑢 ∈ (𝑘Gen‘𝐽) → 𝑢 ∈ 𝐽))
97	96	ssrdv 3758	. 2 ⊢ (𝜑 → (𝑘Gen‘𝐽) ⊆ 𝐽)
98		iskgen2 21572	. 2 ⊢ (𝐽 ∈ ran 𝑘Gen ↔ (𝐽 ∈ Top ∧ (𝑘Gen‘𝐽) ⊆ 𝐽))
99	1, 97, 98	sylanbrc 572	1 ⊢ (𝜑 → 𝐽 ∈ ran 𝑘Gen)

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 382   = wceq 1631   ∈ wcel 2145  ∀wral 3061  ∃wrex 3062  Vcvv 3351   ∖ cdif 3720   ∪ cun 3721   ∩ cin 3722   ⊆ wss 3723  ∅c0 4063  {csn 4316  ∪ cuni 4574  ran crn 5250  ‘cfv 6031  (class class class)co 6793   ↾_t crest 16289  Topctop 20918  intcnt 21042  neicnei 21122  Compccmp 21410  𝑘Genckgen 21557

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1870  ax-4 1885  ax-5 1991  ax-6 2057  ax-7 2093  ax-8 2147  ax-9 2154  ax-10 2174  ax-11 2190  ax-12 2203  ax-13 2408  ax-ext 2751  ax-rep 4904  ax-sep 4915  ax-nul 4923  ax-pow 4974  ax-pr 5034  ax-un 7096

This theorem depends on definitions:  df-bi 197  df-an 383  df-or 837  df-3or 1072  df-3an 1073  df-tru 1634  df-ex 1853  df-nf 1858  df-sb 2050  df-eu 2622  df-mo 2623  df-clab 2758  df-cleq 2764  df-clel 2767  df-nfc 2902  df-ne 2944  df-ral 3066  df-rex 3067  df-reu 3068  df-rab 3070  df-v 3353  df-sbc 3588  df-csb 3683  df-dif 3726  df-un 3728  df-in 3730  df-ss 3737  df-pss 3739  df-nul 4064  df-if 4226  df-pw 4299  df-sn 4317  df-pr 4319  df-tp 4321  df-op 4323  df-uni 4575  df-int 4612  df-iun 4656  df-br 4787  df-opab 4847  df-mpt 4864  df-tr 4887  df-id 5157  df-eprel 5162  df-po 5170  df-so 5171  df-fr 5208  df-we 5210  df-xp 5255  df-rel 5256  df-cnv 5257  df-co 5258  df-dm 5259  df-rn 5260  df-res 5261  df-ima 5262  df-pred 5823  df-ord 5869  df-on 5870  df-lim 5871  df-suc 5872  df-iota 5994  df-fun 6033  df-fn 6034  df-f 6035  df-f1 6036  df-fo 6037  df-f1o 6038  df-fv 6039  df-ov 6796  df-oprab 6797  df-mpt2 6798  df-om 7213  df-1st 7315  df-2nd 7316  df-wrecs 7559  df-recs 7621  df-rdg 7659  df-oadd 7717  df-er 7896  df-en 8110  df-fin 8113  df-fi 8473  df-rest 16291  df-topgen 16312  df-top 20919  df-topon 20936  df-bases 20971  df-ntr 21045  df-nei 21123  df-cmp 21411  df-kgen 21558

This theorem is referenced by:  cmpkgen  21575  llycmpkgen  21576