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Mirrors > Home > MPE Home > Th. List > cmetmet | Structured version Visualization version GIF version |
Description: A complete metric space is a metric space. (Contributed by NM, 18-Dec-2006.) (Revised by Mario Carneiro, 29-Jan-2014.) |
Ref | Expression |
---|---|
cmetmet | ⊢ (𝐷 ∈ (CMet‘𝑋) → 𝐷 ∈ (Met‘𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2823 | . . 3 ⊢ (MetOpen‘𝐷) = (MetOpen‘𝐷) | |
2 | 1 | iscmet 23889 | . 2 ⊢ (𝐷 ∈ (CMet‘𝑋) ↔ (𝐷 ∈ (Met‘𝑋) ∧ ∀𝑓 ∈ (CauFil‘𝐷)((MetOpen‘𝐷) fLim 𝑓) ≠ ∅)) |
3 | 2 | simplbi 500 | 1 ⊢ (𝐷 ∈ (CMet‘𝑋) → 𝐷 ∈ (Met‘𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 ≠ wne 3018 ∀wral 3140 ∅c0 4293 ‘cfv 6357 (class class class)co 7158 Metcmet 20533 MetOpencmopn 20537 fLim cflim 22544 CauFilccfil 23857 CMetccmet 23859 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-sbc 3775 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-iota 6316 df-fun 6359 df-fv 6365 df-ov 7161 df-cmet 23862 |
This theorem is referenced by: cmetmeti 23892 cmetcaulem 23893 cmetcau 23894 iscmet2 23899 metsscmetcld 23920 cmetss 23921 bcthlem2 23930 bcthlem3 23931 bcthlem4 23932 bcthlem5 23933 bcth2 23935 bcth3 23936 cmetcusp1 23958 cmetcusp 23959 minveclem3 24034 ubthlem1 28649 ubthlem2 28650 hlmet 28674 fmcncfil 31176 heiborlem3 35093 heiborlem6 35096 heiborlem8 35098 heiborlem9 35099 heiborlem10 35100 heibor 35101 bfplem1 35102 bfplem2 35103 bfp 35104 |
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