Theorem metsscmetcld 24384

Description: A complete subspace of a metric space is closed in the parent space. Formerly part of proof for cmetss 24385. (Contributed by NM, 28-Jan-2008.) (Revised by Mario Carneiro, 15-Oct-2015.) (Revised by AV, 9-Oct-2022.)

Hypothesis

Ref	Expression
metsscmetcld.j	⊢ 𝐽 = (MetOpen‘𝐷)

Assertion

Ref	Expression
metsscmetcld	⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝑌 ∈ (Clsd‘𝐽))

Proof of Theorem metsscmetcld

Dummy variables 𝑥 𝑓 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		metxmet 23395	. . . . . . 7 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐷 ∈ (∞Met‘𝑋))
2	1	adantr 480	. . . . . 6 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝐷 ∈ (∞Met‘𝑋))
3		metsscmetcld.j	. . . . . . 7 ⊢ 𝐽 = (MetOpen‘𝐷)
4	3	mopntopon 23500	. . . . . 6 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐽 ∈ (TopOn‘𝑋))
5	2, 4	syl 17	. . . . 5 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝐽 ∈ (TopOn‘𝑋))
6		resss 5905	. . . . . . 7 ⊢ (𝐷 ↾ (𝑌 × 𝑌)) ⊆ 𝐷
7		dmss 5800	. . . . . . 7 ⊢ ((𝐷 ↾ (𝑌 × 𝑌)) ⊆ 𝐷 → dom (𝐷 ↾ (𝑌 × 𝑌)) ⊆ dom 𝐷)
8		dmss 5800	. . . . . . 7 ⊢ (dom (𝐷 ↾ (𝑌 × 𝑌)) ⊆ dom 𝐷 → dom dom (𝐷 ↾ (𝑌 × 𝑌)) ⊆ dom dom 𝐷)
9	6, 7, 8	mp2b 10	. . . . . 6 ⊢ dom dom (𝐷 ↾ (𝑌 × 𝑌)) ⊆ dom dom 𝐷
10		cmetmet 24355	. . . . . . . 8 ⊢ ((𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌) → (𝐷 ↾ (𝑌 × 𝑌)) ∈ (Met‘𝑌))
11		metdmdm 23397	. . . . . . . 8 ⊢ ((𝐷 ↾ (𝑌 × 𝑌)) ∈ (Met‘𝑌) → 𝑌 = dom dom (𝐷 ↾ (𝑌 × 𝑌)))
12	10, 11	syl 17	. . . . . . 7 ⊢ ((𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌) → 𝑌 = dom dom (𝐷 ↾ (𝑌 × 𝑌)))
13		metdmdm 23397	. . . . . . 7 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝑋 = dom dom 𝐷)
14		sseq12 3944	. . . . . . 7 ⊢ ((𝑌 = dom dom (𝐷 ↾ (𝑌 × 𝑌)) ∧ 𝑋 = dom dom 𝐷) → (𝑌 ⊆ 𝑋 ↔ dom dom (𝐷 ↾ (𝑌 × 𝑌)) ⊆ dom dom 𝐷))
15	12, 13, 14	syl2anr 596	. . . . . 6 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → (𝑌 ⊆ 𝑋 ↔ dom dom (𝐷 ↾ (𝑌 × 𝑌)) ⊆ dom dom 𝐷))
16	9, 15	mpbiri 257	. . . . 5 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝑌 ⊆ 𝑋)
17		flimcls 23044	. . . . 5 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑌 ⊆ 𝑋) → (𝑥 ∈ ((cls‘𝐽)‘𝑌) ↔ ∃𝑓 ∈ (Fil‘𝑋)(𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓))))
18	5, 16, 17	syl2anc 583	. . . 4 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → (𝑥 ∈ ((cls‘𝐽)‘𝑌) ↔ ∃𝑓 ∈ (Fil‘𝑋)(𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓))))
19		simprrr 778	. . . . . 6 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝑥 ∈ (𝐽 fLim 𝑓))
20	2	adantr 480	. . . . . . . 8 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝐷 ∈ (∞Met‘𝑋))
21	3	methaus 23582	. . . . . . . 8 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐽 ∈ Haus)
22		hausflimi 23039	. . . . . . . 8 ⊢ (𝐽 ∈ Haus → ∃*𝑥 𝑥 ∈ (𝐽 fLim 𝑓))
23	20, 21, 22	3syl 18	. . . . . . 7 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → ∃*𝑥 𝑥 ∈ (𝐽 fLim 𝑓))
24	20, 4	syl 17	. . . . . . . . . . 11 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝐽 ∈ (TopOn‘𝑋))
25		simprl 767	. . . . . . . . . . 11 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝑓 ∈ (Fil‘𝑋))
26		simprrl 777	. . . . . . . . . . 11 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝑌 ∈ 𝑓)
27		flimrest 23042	. . . . . . . . . . 11 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑓 ∈ (Fil‘𝑋) ∧ 𝑌 ∈ 𝑓) → ((𝐽 ↾t 𝑌) fLim (𝑓 ↾t 𝑌)) = ((𝐽 fLim 𝑓) ∩ 𝑌))
28	24, 25, 26, 27	syl3anc 1369	. . . . . . . . . 10 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → ((𝐽 ↾t 𝑌) fLim (𝑓 ↾t 𝑌)) = ((𝐽 fLim 𝑓) ∩ 𝑌))
29	16	adantr 480	. . . . . . . . . . . 12 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝑌 ⊆ 𝑋)
30		eqid 2738	. . . . . . . . . . . . 13 ⊢ (𝐷 ↾ (𝑌 × 𝑌)) = (𝐷 ↾ (𝑌 × 𝑌))
31		eqid 2738	. . . . . . . . . . . . 13 ⊢ (MetOpen‘(𝐷 ↾ (𝑌 × 𝑌))) = (MetOpen‘(𝐷 ↾ (𝑌 × 𝑌)))
32	30, 3, 31	metrest 23586	. . . . . . . . . . . 12 ⊢ ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑌 ⊆ 𝑋) → (𝐽 ↾t 𝑌) = (MetOpen‘(𝐷 ↾ (𝑌 × 𝑌))))
33	20, 29, 32	syl2anc 583	. . . . . . . . . . 11 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → (𝐽 ↾t 𝑌) = (MetOpen‘(𝐷 ↾ (𝑌 × 𝑌))))
34	33	oveq1d 7270	. . . . . . . . . 10 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → ((𝐽 ↾t 𝑌) fLim (𝑓 ↾t 𝑌)) = ((MetOpen‘(𝐷 ↾ (𝑌 × 𝑌))) fLim (𝑓 ↾t 𝑌)))
35	28, 34	eqtr3d 2780	. . . . . . . . 9 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → ((𝐽 fLim 𝑓) ∩ 𝑌) = ((MetOpen‘(𝐷 ↾ (𝑌 × 𝑌))) fLim (𝑓 ↾t 𝑌)))
36		simplr 765	. . . . . . . . . 10 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌))
37	3	flimcfil 24383	. . . . . . . . . . . 12 ⊢ ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑥 ∈ (𝐽 fLim 𝑓)) → 𝑓 ∈ (CauFil‘𝐷))
38	20, 19, 37	syl2anc 583	. . . . . . . . . . 11 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝑓 ∈ (CauFil‘𝐷))
39		cfilres 24365	. . . . . . . . . . . 12 ⊢ ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑓 ∈ (Fil‘𝑋) ∧ 𝑌 ∈ 𝑓) → (𝑓 ∈ (CauFil‘𝐷) ↔ (𝑓 ↾t 𝑌) ∈ (CauFil‘(𝐷 ↾ (𝑌 × 𝑌)))))
40	20, 25, 26, 39	syl3anc 1369	. . . . . . . . . . 11 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → (𝑓 ∈ (CauFil‘𝐷) ↔ (𝑓 ↾t 𝑌) ∈ (CauFil‘(𝐷 ↾ (𝑌 × 𝑌)))))
41	38, 40	mpbid 231	. . . . . . . . . 10 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → (𝑓 ↾t 𝑌) ∈ (CauFil‘(𝐷 ↾ (𝑌 × 𝑌))))
42	31	cmetcvg 24354	. . . . . . . . . 10 ⊢ (((𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌) ∧ (𝑓 ↾t 𝑌) ∈ (CauFil‘(𝐷 ↾ (𝑌 × 𝑌)))) → ((MetOpen‘(𝐷 ↾ (𝑌 × 𝑌))) fLim (𝑓 ↾t 𝑌)) ≠ ∅)
43	36, 41, 42	syl2anc 583	. . . . . . . . 9 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → ((MetOpen‘(𝐷 ↾ (𝑌 × 𝑌))) fLim (𝑓 ↾t 𝑌)) ≠ ∅)
44	35, 43	eqnetrd 3010	. . . . . . . 8 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → ((𝐽 fLim 𝑓) ∩ 𝑌) ≠ ∅)
45		ndisj 4298	. . . . . . . 8 ⊢ (((𝐽 fLim 𝑓) ∩ 𝑌) ≠ ∅ ↔ ∃𝑥(𝑥 ∈ (𝐽 fLim 𝑓) ∧ 𝑥 ∈ 𝑌))
46	44, 45	sylib 217	. . . . . . 7 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → ∃𝑥(𝑥 ∈ (𝐽 fLim 𝑓) ∧ 𝑥 ∈ 𝑌))
47		mopick 2627	. . . . . . 7 ⊢ ((∃*𝑥 𝑥 ∈ (𝐽 fLim 𝑓) ∧ ∃𝑥(𝑥 ∈ (𝐽 fLim 𝑓) ∧ 𝑥 ∈ 𝑌)) → (𝑥 ∈ (𝐽 fLim 𝑓) → 𝑥 ∈ 𝑌))
48	23, 46, 47	syl2anc 583	. . . . . 6 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → (𝑥 ∈ (𝐽 fLim 𝑓) → 𝑥 ∈ 𝑌))
49	19, 48	mpd 15	. . . . 5 ⊢ (((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) ∧ (𝑓 ∈ (Fil‘𝑋) ∧ (𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)))) → 𝑥 ∈ 𝑌)
50	49	rexlimdvaa 3213	. . . 4 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → (∃𝑓 ∈ (Fil‘𝑋)(𝑌 ∈ 𝑓 ∧ 𝑥 ∈ (𝐽 fLim 𝑓)) → 𝑥 ∈ 𝑌))
51	18, 50	sylbid 239	. . 3 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → (𝑥 ∈ ((cls‘𝐽)‘𝑌) → 𝑥 ∈ 𝑌))
52	51	ssrdv 3923	. 2 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → ((cls‘𝐽)‘𝑌) ⊆ 𝑌)
53	3	mopntop 23501	. . . 4 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐽 ∈ Top)
54	2, 53	syl 17	. . 3 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝐽 ∈ Top)
55	3	mopnuni 23502	. . . . 5 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 = ∪ 𝐽)
56	2, 55	syl 17	. . . 4 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝑋 = ∪ 𝐽)
57	16, 56	sseqtrd 3957	. . 3 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝑌 ⊆ ∪ 𝐽)
58		eqid 2738	. . . 4 ⊢ ∪ 𝐽 = ∪ 𝐽
59	58	iscld4 22124	. . 3 ⊢ ((𝐽 ∈ Top ∧ 𝑌 ⊆ ∪ 𝐽) → (𝑌 ∈ (Clsd‘𝐽) ↔ ((cls‘𝐽)‘𝑌) ⊆ 𝑌))
60	54, 57, 59	syl2anc 583	. 2 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → (𝑌 ∈ (Clsd‘𝐽) ↔ ((cls‘𝐽)‘𝑌) ⊆ 𝑌))
61	52, 60	mpbird 256	1 ⊢ ((𝐷 ∈ (Met‘𝑋) ∧ (𝐷 ↾ (𝑌 × 𝑌)) ∈ (CMet‘𝑌)) → 𝑌 ∈ (Clsd‘𝐽))

Syntax hints:   → wi 4   ↔ wb 205   ∧ wa 395   = wceq 1539  ∃wex 1783   ∈ wcel 2108  ∃*wmo 2538   ≠ wne 2942  ∃wrex 3064   ∩ cin 3882   ⊆ wss 3883  ∅c0 4253  ∪ cuni 4836   × cxp 5578  dom cdm 5580   ↾ cres 5582  ‘cfv 6418  (class class class)co 7255   ↾_t crest 17048  ∞Metcxmet 20495  Metcmet 20496  MetOpencmopn 20500  Topctop 21950  TopOnctopon 21967  Clsdccld 22075  clsccl 22077  Hauscha 22367  Filcfil 22904   fLim cflim 22993  CauFilccfil 24321  CMetccmet 24323

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-cnex 10858  ax-resscn 10859  ax-1cn 10860  ax-icn 10861  ax-addcl 10862  ax-addrcl 10863  ax-mulcl 10864  ax-mulrcl 10865  ax-mulcom 10866  ax-addass 10867  ax-mulass 10868  ax-distr 10869  ax-i2m1 10870  ax-1ne0 10871  ax-1rid 10872  ax-rnegex 10873  ax-rrecex 10874  ax-cnre 10875  ax-pre-lttri 10876  ax-pre-lttrn 10877  ax-pre-ltadd 10878  ax-pre-mulgt0 10879  ax-pre-sup 10880

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-nel 3049  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3902  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4837  df-int 4877  df-iun 4923  df-iin 4924  df-br 5071  df-opab 5133  df-mpt 5154  df-tr 5188  df-id 5480  df-eprel 5486  df-po 5494  df-so 5495  df-fr 5535  df-we 5537  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-pred 6191  df-ord 6254  df-on 6255  df-lim 6256  df-suc 6257  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-om 7688  df-1st 7804  df-2nd 7805  df-frecs 8068  df-wrecs 8099  df-recs 8173  df-rdg 8212  df-1o 8267  df-er 8456  df-map 8575  df-en 8692  df-dom 8693  df-sdom 8694  df-fin 8695  df-fi 9100  df-sup 9131  df-inf 9132  df-pnf 10942  df-mnf 10943  df-xr 10944  df-ltxr 10945  df-le 10946  df-sub 11137  df-neg 11138  df-div 11563  df-nn 11904  df-2 11966  df-n0 12164  df-z 12250  df-uz 12512  df-q 12618  df-rp 12660  df-xneg 12777  df-xadd 12778  df-xmul 12779  df-ico 13014  df-icc 13015  df-rest 17050  df-topgen 17071  df-psmet 20502  df-xmet 20503  df-met 20504  df-bl 20505  df-mopn 20506  df-fbas 20507  df-fg 20508  df-top 21951  df-topon 21968  df-bases 22004  df-cld 22078  df-ntr 22079  df-cls 22080  df-nei 22157  df-haus 22374  df-fil 22905  df-flim 22998  df-cfil 24324  df-cmet 24326

This theorem is referenced by:  cmetss  24385  cmssmscld  24419