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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 2798 | . . 3 ⊢ (MetOpen‘𝐷) = (MetOpen‘𝐷) | |
2 | 1 | iscmet 23888 | . 2 ⊢ (𝐷 ∈ (CMet‘𝑋) ↔ (𝐷 ∈ (Met‘𝑋) ∧ ∀𝑓 ∈ (CauFil‘𝐷)((MetOpen‘𝐷) fLim 𝑓) ≠ ∅)) |
3 | 2 | simplbi 501 | 1 ⊢ (𝐷 ∈ (CMet‘𝑋) → 𝐷 ∈ (Met‘𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2111 ≠ wne 2987 ∀wral 3106 ∅c0 4243 ‘cfv 6324 (class class class)co 7135 Metcmet 20077 MetOpencmopn 20081 fLim cflim 22539 CauFilccfil 23856 CMetccmet 23858 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-ral 3111 df-rex 3112 df-rab 3115 df-v 3443 df-sbc 3721 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-iota 6283 df-fun 6326 df-fv 6332 df-ov 7138 df-cmet 23861 |
This theorem is referenced by: cmetmeti 23891 cmetcaulem 23892 cmetcau 23893 iscmet2 23898 metsscmetcld 23919 cmetss 23920 bcthlem2 23929 bcthlem3 23930 bcthlem4 23931 bcthlem5 23932 bcth2 23934 bcth3 23935 cmetcusp1 23957 cmetcusp 23958 minveclem3 24033 ubthlem1 28653 ubthlem2 28654 hlmet 28678 fmcncfil 31284 heiborlem3 35251 heiborlem6 35254 heiborlem8 35256 heiborlem9 35257 heiborlem10 35258 heibor 35259 bfplem1 35260 bfplem2 35261 bfp 35262 |
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