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Mirrors > Home > ILE Home > Th. List > psmetf | Unicode version |
Description: The distance function of a pseudometric as a function. (Contributed by Thierry Arnoux, 7-Feb-2018.) |
Ref | Expression |
---|---|
psmetf | PsMet |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-psmet 12528 | . . . . 5 PsMet | |
2 | 1 | mptrcl 5562 | . . . 4 PsMet |
3 | ispsmet 12864 | . . . 4 PsMet | |
4 | 2, 3 | syl 14 | . . 3 PsMet PsMet |
5 | 4 | ibi 175 | . 2 PsMet |
6 | 5 | simpld 111 | 1 PsMet |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1342 wcel 2135 wral 2442 crab 2446 cvv 2721 class class class wbr 3976 cxp 4596 wf 5178 cfv 5182 (class class class)co 5836 cmap 6605 cc0 7744 cxr 7923 cle 7925 cxad 9697 PsMetcpsmet 12520 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 ax-setind 4508 ax-cnex 7835 ax-resscn 7836 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-fal 1348 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-ral 2447 df-rex 2448 df-rab 2451 df-v 2723 df-sbc 2947 df-csb 3041 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-br 3977 df-opab 4038 df-mpt 4039 df-id 4265 df-xp 4604 df-rel 4605 df-cnv 4606 df-co 4607 df-dm 4608 df-rn 4609 df-res 4610 df-ima 4611 df-iota 5147 df-fun 5184 df-fn 5185 df-f 5186 df-fv 5190 df-ov 5839 df-oprab 5840 df-mpo 5841 df-map 6607 df-pnf 7926 df-mnf 7927 df-xr 7928 df-psmet 12528 |
This theorem is referenced by: psmetcl 12867 psmetxrge0 12873 psmetres2 12874 distspace 12876 |
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