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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 22943 | . 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 5553 ⟶wf 6351 ‘cfv 6355 ℝcr 10536 ∞Metcxmet 20530 Metcmet 20531 |
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 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-mulcl 10599 ax-i2m1 10605 |
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 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-ov 7159 df-oprab 7160 df-mpo 7161 df-er 8289 df-map 8408 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-xr 10679 df-xadd 12509 df-xmet 20538 df-met 20539 |
This theorem is referenced by: metdmdm 22946 meteq0 22949 mettri2 22951 met0 22953 metge0 22955 metsym 22960 metrtri 22967 metgt0 22969 metres2 22973 prdsmet 22980 imasf1omet 22986 blpnf 23007 bl2in 23010 isms2 23060 setsms 23090 tmsms 23097 metss2lem 23121 metss2 23122 methaus 23130 dscopn 23183 ngpocelbl 23313 cnxmet 23381 rexmet 23399 metdcn2 23447 metdsre 23461 metdscn2 23465 lebnumlem1 23565 lebnumlem2 23566 lebnumlem3 23567 lebnum 23568 xlebnum 23569 cmetcaulem 23891 cmetcau 23892 iscmet3lem1 23894 iscmet3lem2 23895 iscmet3 23896 equivcfil 23902 equivcau 23903 metsscmetcld 23918 cmetss 23919 relcmpcmet 23921 cmpcmet 23922 cncmet 23925 bcthlem2 23928 bcthlem3 23929 bcthlem4 23930 bcthlem5 23931 bcth2 23933 bcth3 23934 cmetcusp1 23956 cmetcusp 23957 minveclem3 24032 imsxmet 28469 blocni 28582 ubthlem1 28647 ubthlem2 28648 minvecolem4a 28654 hhxmet 28952 hilxmet 28972 fmcncfil 31174 blssp 35046 lmclim2 35048 geomcau 35049 caures 35050 caushft 35051 sstotbnd2 35067 equivtotbnd 35071 isbndx 35075 isbnd3 35077 ssbnd 35081 totbndbnd 35082 prdstotbnd 35087 prdsbnd2 35088 heibor1lem 35102 heibor1 35103 heiborlem3 35106 heiborlem6 35109 heiborlem8 35111 heiborlem9 35112 heiborlem10 35113 heibor 35114 bfplem1 35115 bfplem2 35116 rrncmslem 35125 ismrer1 35131 reheibor 35132 metpsmet 41377 qndenserrnbllem 42599 qndenserrnbl 42600 qndenserrnopnlem 42602 rrndsxmet 42608 hoiqssbllem2 42925 hoiqssbl 42927 opnvonmbllem2 42935 |
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