Theorem cncls 23212

Description: Continuity in terms of closure. (Contributed by Jeff Hankins, 1-Oct-2009.) (Proof shortened by Mario Carneiro, 25-Aug-2015.)

Assertion

Ref	Expression
cncls	⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) ↔ (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)))))

Distinct variable groups:   𝑥,𝐹   𝑥,𝐽   𝑥,𝐾   𝑥,𝑋   𝑥,𝑌

Proof of Theorem cncls

Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		cnf2 23187	. . . 4 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶𝑌)
2	1	3expia 1121	. . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:𝑋⟶𝑌))
3		elpwi 4582	. . . . . . 7 ⊢ (𝑥 ∈ 𝒫 𝑋 → 𝑥 ⊆ 𝑋)
4	3	adantl 481	. . . . . 6 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝑥 ∈ 𝒫 𝑋) → 𝑥 ⊆ 𝑋)
5		toponuni 22852	. . . . . . 7 ⊢ (𝐽 ∈ (TopOn‘𝑋) → 𝑋 = ∪ 𝐽)
6	5	ad2antrr 726	. . . . . 6 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝑥 ∈ 𝒫 𝑋) → 𝑋 = ∪ 𝐽)
7	4, 6	sseqtrd 3995	. . . . 5 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝑥 ∈ 𝒫 𝑋) → 𝑥 ⊆ ∪ 𝐽)
8		eqid 2735	. . . . . . 7 ⊢ ∪ 𝐽 = ∪ 𝐽
9	8	cnclsi 23210	. . . . . 6 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑥 ⊆ ∪ 𝐽) → (𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)))
10	9	expcom 413	. . . . 5 ⊢ (𝑥 ⊆ ∪ 𝐽 → (𝐹 ∈ (𝐽 Cn 𝐾) → (𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥))))
11	7, 10	syl 17	. . . 4 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝑥 ∈ 𝒫 𝑋) → (𝐹 ∈ (𝐽 Cn 𝐾) → (𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥))))
12	11	ralrimdva 3140	. . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) → ∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥))))
13	2, 12	jcad 512	. 2 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) → (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)))))
14		toponmax 22864	. . . . . . . . 9 ⊢ (𝐽 ∈ (TopOn‘𝑋) → 𝑋 ∈ 𝐽)
15	14	ad3antrrr 730	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑋 ∈ 𝐽)
16		cnvimass 6069	. . . . . . . . 9 ⊢ (◡𝐹 “ 𝑦) ⊆ dom 𝐹
17		fdm 6715	. . . . . . . . . 10 ⊢ (𝐹:𝑋⟶𝑌 → dom 𝐹 = 𝑋)
18	17	ad2antlr 727	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → dom 𝐹 = 𝑋)
19	16, 18	sseqtrid 4001	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (◡𝐹 “ 𝑦) ⊆ 𝑋)
20	15, 19	sselpwd 5298	. . . . . . 7 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (◡𝐹 “ 𝑦) ∈ 𝒫 𝑋)
21		fveq2 6876	. . . . . . . . . 10 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → ((cls‘𝐽)‘𝑥) = ((cls‘𝐽)‘(◡𝐹 “ 𝑦)))
22	21	imaeq2d 6047	. . . . . . . . 9 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → (𝐹 “ ((cls‘𝐽)‘𝑥)) = (𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))))
23		imaeq2 6043	. . . . . . . . . 10 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → (𝐹 “ 𝑥) = (𝐹 “ (◡𝐹 “ 𝑦)))
24	23	fveq2d 6880	. . . . . . . . 9 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → ((cls‘𝐾)‘(𝐹 “ 𝑥)) = ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))))
25	22, 24	sseq12d 3992	. . . . . . . 8 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → ((𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)) ↔ (𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦)))))
26	25	rspcv 3597	. . . . . . 7 ⊢ ((◡𝐹 “ 𝑦) ∈ 𝒫 𝑋 → (∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)) → (𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦)))))
27	20, 26	syl 17	. . . . . 6 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)) → (𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦)))))
28		topontop 22851	. . . . . . . . . 10 ⊢ (𝐾 ∈ (TopOn‘𝑌) → 𝐾 ∈ Top)
29	28	ad3antlr 731	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝐾 ∈ Top)
30		elpwi 4582	. . . . . . . . . . 11 ⊢ (𝑦 ∈ 𝒫 𝑌 → 𝑦 ⊆ 𝑌)
31	30	adantl 481	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑦 ⊆ 𝑌)
32		toponuni 22852	. . . . . . . . . . 11 ⊢ (𝐾 ∈ (TopOn‘𝑌) → 𝑌 = ∪ 𝐾)
33	32	ad3antlr 731	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑌 = ∪ 𝐾)
34	31, 33	sseqtrd 3995	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑦 ⊆ ∪ 𝐾)
35		ffun 6709	. . . . . . . . . . . 12 ⊢ (𝐹:𝑋⟶𝑌 → Fun 𝐹)
36	35	ad2antlr 727	. . . . . . . . . . 11 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → Fun 𝐹)
37		funimacnv 6617	. . . . . . . . . . 11 ⊢ (Fun 𝐹 → (𝐹 “ (◡𝐹 “ 𝑦)) = (𝑦 ∩ ran 𝐹))
38	36, 37	syl 17	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (𝐹 “ (◡𝐹 “ 𝑦)) = (𝑦 ∩ ran 𝐹))
39		inss1 4212	. . . . . . . . . 10 ⊢ (𝑦 ∩ ran 𝐹) ⊆ 𝑦
40	38, 39	eqsstrdi 4003	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (𝐹 “ (◡𝐹 “ 𝑦)) ⊆ 𝑦)
41		eqid 2735	. . . . . . . . . 10 ⊢ ∪ 𝐾 = ∪ 𝐾
42	41	clsss 22992	. . . . . . . . 9 ⊢ ((𝐾 ∈ Top ∧ 𝑦 ⊆ ∪ 𝐾 ∧ (𝐹 “ (◡𝐹 “ 𝑦)) ⊆ 𝑦) → ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦))
43	29, 34, 40, 42	syl3anc 1373	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦))
44		sstr2 3965	. . . . . . . 8 ⊢ ((𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) → (((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦) → (𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦)))
45	43, 44	syl5com 31	. . . . . . 7 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) → (𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦)))
46		topontop 22851	. . . . . . . . . . 11 ⊢ (𝐽 ∈ (TopOn‘𝑋) → 𝐽 ∈ Top)
47	46	ad3antrrr 730	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝐽 ∈ Top)
48	5	ad3antrrr 730	. . . . . . . . . . . 12 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑋 = ∪ 𝐽)
49	18, 48	eqtrd 2770	. . . . . . . . . . 11 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → dom 𝐹 = ∪ 𝐽)
50	16, 49	sseqtrid 4001	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (◡𝐹 “ 𝑦) ⊆ ∪ 𝐽)
51	8	clsss3 22997	. . . . . . . . . 10 ⊢ ((𝐽 ∈ Top ∧ (◡𝐹 “ 𝑦) ⊆ ∪ 𝐽) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ ∪ 𝐽)
52	47, 50, 51	syl2anc 584	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ ∪ 𝐽)
53	52, 49	sseqtrrd 3996	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ dom 𝐹)
54		funimass3 7044	. . . . . . . 8 ⊢ ((Fun 𝐹 ∧ ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ dom 𝐹) → ((𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦) ↔ ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ (◡𝐹 “ ((cls‘𝐾)‘𝑦))))
55	36, 53, 54	syl2anc 584	. . . . . . 7 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦) ↔ ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ (◡𝐹 “ ((cls‘𝐾)‘𝑦))))
56	45, 55	sylibd 239	. . . . . 6 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ (◡𝐹 “ ((cls‘𝐾)‘𝑦))))
57	27, 56	syld 47	. . . . 5 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ (◡𝐹 “ ((cls‘𝐾)‘𝑦))))
58	57	ralrimdva 3140	. . . 4 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) → (∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)) → ∀𝑦 ∈ 𝒫 𝑌((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ (◡𝐹 “ ((cls‘𝐾)‘𝑦))))
59	58	imdistanda 571	. . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → ((𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥))) → (𝐹:𝑋⟶𝑌 ∧ ∀𝑦 ∈ 𝒫 𝑌((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ (◡𝐹 “ ((cls‘𝐾)‘𝑦)))))
60		cncls2 23211	. . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) ↔ (𝐹:𝑋⟶𝑌 ∧ ∀𝑦 ∈ 𝒫 𝑌((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ (◡𝐹 “ ((cls‘𝐾)‘𝑦)))))
61	59, 60	sylibrd 259	. 2 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → ((𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥))) → 𝐹 ∈ (𝐽 Cn 𝐾)))
62	13, 61	impbid 212	1 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) ↔ (𝐹:𝑋⟶𝑌 ∧ ∀𝑥 ∈ 𝒫 𝑋(𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)))))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   = wceq 1540   ∈ wcel 2108  ∀wral 3051   ∩ cin 3925   ⊆ wss 3926  𝒫 cpw 4575  ∪ cuni 4883  ^◡ccnv 5653  dom cdm 5654  ran crn 5655   “ cima 5657  Fun wfun 6525  ⟶wf 6527  ‘cfv 6531  (class class class)co 7405  Topctop 22831  TopOnctopon 22848  clsccl 22956   Cn ccn 23162

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2707  ax-rep 5249  ax-sep 5266  ax-nul 5276  ax-pow 5335  ax-pr 5402  ax-un 7729

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-reu 3360  df-rab 3416  df-v 3461  df-sbc 3766  df-csb 3875  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-nul 4309  df-if 4501  df-pw 4577  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-int 4923  df-iun 4969  df-iin 4970  df-br 5120  df-opab 5182  df-mpt 5202  df-id 5548  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-rn 5665  df-res 5666  df-ima 5667  df-iota 6484  df-fun 6533  df-fn 6534  df-f 6535  df-f1 6536  df-fo 6537  df-f1o 6538  df-fv 6539  df-ov 7408  df-oprab 7409  df-mpo 7410  df-map 8842  df-top 22832  df-topon 22849  df-cld 22957  df-cls 22959  df-cn 23165

This theorem is referenced by: (None)