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Mirrors > Home > ILE Home > Th. List > metrel | Unicode version |
Description: The class of metrics is a relation. (Contributed by Jim Kingdon, 20-Apr-2023.) |
Ref | Expression |
---|---|
metrel |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mptrel 4739 | . 2 | |
2 | df-met 12783 | . . 3 | |
3 | 2 | releqi 4694 | . 2 |
4 | 1, 3 | mpbir 145 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wceq 1348 wral 2448 crab 2452 cvv 2730 class class class wbr 3989 cmpt 4050 cxp 4609 wrel 4616 (class class class)co 5853 cmap 6626 cr 7773 cc0 7774 caddc 7777 cle 7955 cmet 12775 |
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-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-opab 4051 df-mpt 4052 df-xp 4617 df-rel 4618 df-met 12783 |
This theorem is referenced by: metflem 13143 ismet2 13148 |
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