Theorem cncls 23483

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 23458	. . . 4 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶𝑌)
2	1	3expia 1139	. . 3 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:𝑋⟶𝑌))
3		elpwi 4571	. . . . . . 7 ⊢ (𝑥 ∈ 𝒫 𝑋 → 𝑥 ⊆ 𝑋)
4	3	adantl 487	. . . . . 6 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝑥 ∈ 𝒫 𝑋) → 𝑥 ⊆ 𝑋)
5		toponuni 23123	. . . . . . 7 ⊢ (𝐽 ∈ (TopOn‘𝑋) → 𝑋 = ∪ 𝐽)
6	5	ad2antrr 739	. . . . . 6 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝑥 ∈ 𝒫 𝑋) → 𝑋 = ∪ 𝐽)
7	4, 6	sseqtrd 3974	. . . . 5 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝑥 ∈ 𝒫 𝑋) → 𝑥 ⊆ ∪ 𝐽)
8		eqid 2765	. . . . . . 7 ⊢ ∪ 𝐽 = ∪ 𝐽
9	8	cnclsi 23481	. . . . . 6 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑥 ⊆ ∪ 𝐽) → (𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥)))
10	9	expcom 419	. . . . 5 ⊢ (𝑥 ⊆ ∪ 𝐽 → (𝐹 ∈ (𝐽 Cn 𝐾) → (𝐹 “ ((cls‘𝐽)‘𝑥)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑥))))
11	7, 10	syl 18	. . . 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 3167	. . 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 522	. 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 23135	. . . . . . . . 9 ⊢ (𝐽 ∈ (TopOn‘𝑋) → 𝑋 ∈ 𝐽)
15	14	ad3antrrr 743	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑋 ∈ 𝐽)
16		cnvimass 6086	. . . . . . . . 9 ⊢ (◡𝐹 “ 𝑦) ⊆ dom 𝐹
17		fdm 6719	. . . . . . . . . 10 ⊢ (𝐹:𝑋⟶𝑌 → dom 𝐹 = 𝑋)
18	17	ad2antlr 740	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → dom 𝐹 = 𝑋)
19	16, 18	sseqtrid 3980	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (◡𝐹 “ 𝑦) ⊆ 𝑋)
20	15, 19	sselpwd 5301	. . . . . . 7 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (◡𝐹 “ 𝑦) ∈ 𝒫 𝑋)
21		fveq2 6885	. . . . . . . . . 10 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → ((cls‘𝐽)‘𝑥) = ((cls‘𝐽)‘(◡𝐹 “ 𝑦)))
22	21	imaeq2d 6064	. . . . . . . . 9 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → (𝐹 “ ((cls‘𝐽)‘𝑥)) = (𝐹 “ ((cls‘𝐽)‘(◡𝐹 “ 𝑦))))
23		imaeq2 6060	. . . . . . . . . 10 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → (𝐹 “ 𝑥) = (𝐹 “ (◡𝐹 “ 𝑦)))
24	23	fveq2d 6889	. . . . . . . . 9 ⊢ (𝑥 = (◡𝐹 “ 𝑦) → ((cls‘𝐾)‘(𝐹 “ 𝑥)) = ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))))
25	22, 24	sseq12d 3971	. . . . . . . 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 3579	. . . . . . 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 18	. . . . . 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 23122	. . . . . . . . . 10 ⊢ (𝐾 ∈ (TopOn‘𝑌) → 𝐾 ∈ Top)
29	28	ad3antlr 744	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝐾 ∈ Top)
30		elpwi 4571	. . . . . . . . . . 11 ⊢ (𝑦 ∈ 𝒫 𝑌 → 𝑦 ⊆ 𝑌)
31	30	adantl 487	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑦 ⊆ 𝑌)
32		toponuni 23123	. . . . . . . . . . 11 ⊢ (𝐾 ∈ (TopOn‘𝑌) → 𝑌 = ∪ 𝐾)
33	32	ad3antlr 744	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑌 = ∪ 𝐾)
34	31, 33	sseqtrd 3974	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑦 ⊆ ∪ 𝐾)
35		ffun 6712	. . . . . . . . . . . 12 ⊢ (𝐹:𝑋⟶𝑌 → Fun 𝐹)
36	35	ad2antlr 740	. . . . . . . . . . 11 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → Fun 𝐹)
37		funimacnv 6621	. . . . . . . . . . 11 ⊢ (Fun 𝐹 → (𝐹 “ (◡𝐹 “ 𝑦)) = (𝑦 ∩ ran 𝐹))
38	36, 37	syl 18	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (𝐹 “ (◡𝐹 “ 𝑦)) = (𝑦 ∩ ran 𝐹))
39		inss1 4189	. . . . . . . . . 10 ⊢ (𝑦 ∩ ran 𝐹) ⊆ 𝑦
40	38, 39	eqsstrdi 3982	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (𝐹 “ (◡𝐹 “ 𝑦)) ⊆ 𝑦)
41		eqid 2765	. . . . . . . . . 10 ⊢ ∪ 𝐾 = ∪ 𝐾
42	41	clsss 23263	. . . . . . . . 9 ⊢ ((𝐾 ∈ Top ∧ 𝑦 ⊆ ∪ 𝐾 ∧ (𝐹 “ (◡𝐹 “ 𝑦)) ⊆ 𝑦) → ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦))
43	29, 34, 40, 42	syl3anc 1398	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((cls‘𝐾)‘(𝐹 “ (◡𝐹 “ 𝑦))) ⊆ ((cls‘𝐾)‘𝑦))
44		sstr2 3945	. . . . . . . 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 32	. . . . . . 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 23122	. . . . . . . . . . 11 ⊢ (𝐽 ∈ (TopOn‘𝑋) → 𝐽 ∈ Top)
47	46	ad3antrrr 743	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝐽 ∈ Top)
48	5	ad3antrrr 743	. . . . . . . . . . . 12 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → 𝑋 = ∪ 𝐽)
49	18, 48	eqtrd 2800	. . . . . . . . . . 11 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → dom 𝐹 = ∪ 𝐽)
50	16, 49	sseqtrid 3980	. . . . . . . . . 10 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → (◡𝐹 “ 𝑦) ⊆ ∪ 𝐽)
51	8	clsss3 23268	. . . . . . . . . 10 ⊢ ((𝐽 ∈ Top ∧ (◡𝐹 “ 𝑦) ⊆ ∪ 𝐽) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ ∪ 𝐽)
52	47, 50, 51	syl2anc 596	. . . . . . . . 9 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ ∪ 𝐽)
53	52, 49	sseqtrrd 3975	. . . . . . . 8 ⊢ ((((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) ∧ 𝐹:𝑋⟶𝑌) ∧ 𝑦 ∈ 𝒫 𝑌) → ((cls‘𝐽)‘(◡𝐹 “ 𝑦)) ⊆ dom 𝐹)
54		funimass3 7053	. . . . . . . 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 596	. . . . . . 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 242	. . . . . 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 48	. . . . 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 3167	. . . 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 582	. . 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 23482	. . 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 262	. 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 215	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)))))

This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ wa 401   = wceq 1570   ∈ wcel 2146  ∀wral 3081   ∩ cin 3905   ⊆ wss 3906  𝒫 cpw 4564  ∪ cuni 4874  ^◡ccnv 5662  dom cdm 5663  ran crn 5664   “ cima 5666  Fun wfun 6534  ⟶wf 6536  ‘cfv 6540  (class class class)co 7419  Topctop 23102  TopOnctopon 23119  clsccl 23227   Cn ccn 23433

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 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2737  ax-rep 5240  ax-sep 5259  ax-nul 5271  ax-pow 5338  ax-pr 5406  ax-un 7742

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 2569  df-eu 2599  df-clab 2744  df-cleq 2757  df-clel 2840  df-nfc 2914  df-ne 2961  df-ral 3082  df-rex 3092  df-reu 3372  df-rab 3419  df-v 3459  df-sbc 3747  df-csb 3855  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4287  df-if 4490  df-pw 4566  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4875  df-int 4915  df-iun 4960  df-iin 4961  df-br 5112  df-opab 5176  df-mpt 5195  df-id 5558  df-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-rn 5674  df-res 5675  df-ima 5676  df-iota 6496  df-fun 6542  df-fn 6543  df-f 6544  df-f1 6545  df-fo 6546  df-f1o 6547  df-fv 6548  df-ov 7422  df-oprab 7423  df-mpo 7424  df-map 8832  df-top 23103  df-topon 23120  df-cld 23228  df-cls 23230  df-cn 23436

This theorem is used by: (None)