Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > equcom | Structured version Visualization version Unicode version |
Description: Commutative law for equality. Equality is a symmetric relation. (Contributed by NM, 20-Aug-1993.) |
Ref | Expression |
---|---|
equcom |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | equcomi 1944 | . 2 | |
2 | equcomi 1944 | . 2 | |
3 | 1, 2 | impbii 199 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wb 196 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 |
This theorem depends on definitions: df-bi 197 df-an 386 df-ex 1705 |
This theorem is referenced by: equcomd 1946 equequ2OLD 1955 dvelimhw 2173 nfeqf1 2299 eu1 2510 reu7 3401 reu8 3402 issn 4363 iunid 4575 disjxun 4651 copsexg 4956 opelopabsbALT 4984 dfid3 5025 dfid4 5026 opeliunxp 5170 dmi 5340 opabresid 5455 restidsingOLD 5459 asymref2 5513 intirr 5514 cnvi 5537 coi1 5651 cnvso 5674 iotaval 5862 brprcneu 6184 dffv2 6271 fvn0ssdmfun 6350 f1oiso 6601 qsid 7813 mapsnen 8035 marypha2lem2 8342 fiinfg 8405 dfac5lem2 8947 dfac5lem3 8948 kmlem15 8986 brdom7disj 9353 suplem2pr 9875 wloglei 10560 fimaxre 10968 arch 11289 dflt2 11981 hashgt12el 13210 hashge2el2dif 13262 summo 14448 tosso 17036 opsrtoslem1 19484 mamulid 20247 mpt2matmul 20252 mattpos1 20262 scmatscm 20319 1marepvmarrepid 20381 ist1-3 21153 unisngl 21330 cnmptid 21464 fmid 21764 tgphaus 21920 dscopn 22378 iundisj2 23317 dvlip 23756 ply1divmo 23895 disjabrex 29395 disjabrexf 29396 iundisj2f 29403 iundisj2fi 29556 ordtconnlem1 29970 dfdm5 31676 dfrn5 31677 dffun10 32021 elfuns 32022 dfiota3 32030 brimg 32044 dfrdg4 32058 nn0prpwlem 32317 bj-ssbequ2 32643 wl-equsalcom 33328 matunitlindflem2 33406 pmapglb 35056 polval2N 35192 diclspsn 36483 eq0rabdioph 37340 undmrnresiss 37910 relopabVD 39137 mapsnend 39391 opeliun2xp 42111 |
Copyright terms: Public domain | W3C validator |