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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 21948 | . 2 ⊢ (𝐷 ∈ (Met‘𝑋) ↔ (𝐷 ∈ (∞Met‘𝑋) ∧ 𝐷:(𝑋 × 𝑋)⟶ℝ)) | |
2 | 1 | simplbi 475 | 1 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐷 ∈ (∞Met‘𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 × cxp 5036 ⟶wf 5800 ‘cfv 5804 ℝcr 9814 ∞Metcxmt 19552 Metcme 19553 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-mulcl 9877 ax-i2m1 9883 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-er 7629 df-map 7746 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-xadd 11823 df-xmet 19560 df-met 19561 |
This theorem is referenced by: metdmdm 21951 meteq0 21954 mettri2 21956 met0 21958 metge0 21960 metsym 21965 metrtri 21972 metgt0 21974 metres2 21978 prdsmet 21985 imasf1omet 21991 blpnf 22012 bl2in 22015 isms2 22065 setsms 22095 tmsms 22102 metss2lem 22126 metss2 22127 methaus 22135 dscopn 22188 ngpocelbl 22318 cnxmet 22386 rexmet 22402 metdcn2 22450 metdsre 22464 metdscn2 22468 lebnumlem1 22568 lebnumlem2 22569 lebnumlem3 22570 lebnum 22571 xlebnum 22572 cmetcaulem 22894 cmetcau 22895 iscmet3lem1 22897 iscmet3lem2 22898 iscmet3 22899 equivcfil 22905 equivcau 22906 cmetss 22921 relcmpcmet 22923 cmpcmet 22924 cncmet 22927 bcthlem2 22930 bcthlem3 22931 bcthlem4 22932 bcthlem5 22933 bcth2 22935 bcth3 22936 cmetcusp1 22957 cmetcusp 22958 minveclem3 23008 imsxmet 26931 blocni 27044 ubthlem1 27110 ubthlem2 27111 minvecolem4a 27117 hhxmet 27416 hilxmet 27436 fmcncfil 29305 blssp 32722 lmclim2 32724 geomcau 32725 caures 32726 caushft 32727 sstotbnd2 32743 equivtotbnd 32747 isbndx 32751 isbnd3 32753 ssbnd 32757 totbndbnd 32758 prdstotbnd 32763 prdsbnd2 32764 heibor1lem 32778 heibor1 32779 heiborlem3 32782 heiborlem6 32785 heiborlem8 32787 heiborlem9 32788 heiborlem10 32789 heibor 32790 bfplem1 32791 bfplem2 32792 rrncmslem 32801 ismrer1 32807 reheibor 32808 metpsmet 38296 qndenserrnbllem 39190 qndenserrnbl 39191 qndenserrnopnlem 39193 rrndsxmet 39199 hoiqssbllem2 39513 hoiqssbl 39515 opnvonmbllem2 39523 |
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