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Mirrors > Home > MPE Home > Th. List > metxmet | Structured version Visualization version GIF version |
Description: A metric is an extended metric. (Contributed by Mario Carneiro, 20-Aug-2015.) |
Ref | Expression |
---|---|
metxmet | ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐷 ∈ (∞Met‘𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ismet2 22945 | . 2 ⊢ (𝐷 ∈ (Met‘𝑋) ↔ (𝐷 ∈ (∞Met‘𝑋) ∧ 𝐷:(𝑋 × 𝑋)⟶ℝ)) | |
2 | 1 | simplbi 500 | 1 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐷 ∈ (∞Met‘𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 × cxp 5555 ⟶wf 6353 ‘cfv 6357 ℝcr 10538 ∞Metcxmet 20532 Metcmet 20533 |
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 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-mulcl 10601 ax-i2m1 10607 |
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-nel 3126 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 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-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-ov 7161 df-oprab 7162 df-mpo 7163 df-er 8291 df-map 8410 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-xadd 12511 df-xmet 20540 df-met 20541 |
This theorem is referenced by: metdmdm 22948 meteq0 22951 mettri2 22953 met0 22955 metge0 22957 metsym 22962 metrtri 22969 metgt0 22971 metres2 22975 prdsmet 22982 imasf1omet 22988 blpnf 23009 bl2in 23012 isms2 23062 setsms 23092 tmsms 23099 metss2lem 23123 metss2 23124 methaus 23132 dscopn 23185 ngpocelbl 23315 cnxmet 23383 rexmet 23401 metdcn2 23449 metdsre 23463 metdscn2 23467 lebnumlem1 23567 lebnumlem2 23568 lebnumlem3 23569 lebnum 23570 xlebnum 23571 cmetcaulem 23893 cmetcau 23894 iscmet3lem1 23896 iscmet3lem2 23897 iscmet3 23898 equivcfil 23904 equivcau 23905 metsscmetcld 23920 cmetss 23921 relcmpcmet 23923 cmpcmet 23924 cncmet 23927 bcthlem2 23930 bcthlem3 23931 bcthlem4 23932 bcthlem5 23933 bcth2 23935 bcth3 23936 cmetcusp1 23958 cmetcusp 23959 minveclem3 24034 imsxmet 28471 blocni 28584 ubthlem1 28649 ubthlem2 28650 minvecolem4a 28656 hhxmet 28954 hilxmet 28974 fmcncfil 31176 blssp 35033 lmclim2 35035 geomcau 35036 caures 35037 caushft 35038 sstotbnd2 35054 equivtotbnd 35058 isbndx 35062 isbnd3 35064 ssbnd 35068 totbndbnd 35069 prdstotbnd 35074 prdsbnd2 35075 heibor1lem 35089 heibor1 35090 heiborlem3 35093 heiborlem6 35096 heiborlem8 35098 heiborlem9 35099 heiborlem10 35100 heibor 35101 bfplem1 35102 bfplem2 35103 rrncmslem 35112 ismrer1 35118 reheibor 35119 metpsmet 41364 qndenserrnbllem 42586 qndenserrnbl 42587 qndenserrnopnlem 42589 rrndsxmet 42595 hoiqssbllem2 42912 hoiqssbl 42914 opnvonmbllem2 42922 |
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