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| Description: Equality theorem for operation value. |
| Ref | Expression |
|---|---|
| opreq |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq1 3723 |
. 2
| |
| 2 | df-opr 3965 |
. 2
| |
| 3 | df-opr 3965 |
. 2
| |
| 4 | 1, 2, 3 | 3eqtr4g 1531 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: opreqi 3974 opreqd 3977 hboprd 3982 mapxpen 4495 seq1val 6312 ismet 7798 ismsg 7800 msflem 7803 blfval 7835 isgrp 8041 grpidval 8058 grpinvfval 8066 grpdivfval 8081 isabl 8101 isring 8141 ringi 8142 vci 8167 isvclem 8196 isnvlem 8229 nvi 8233 isphg 8476 elghomlem1 10382 subsp 10554 isded 10669 dedi 10670 iscat 10687 cati 10688 ismona 10737 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-sep 2703 ax-pow 2742 ax-pr 2779 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-v 1812 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-nul 2281 df-pw 2402 df-sn 2412 df-pr 2413 df-op 2416 df-uni 2504 df-br 2620 df-opab 2667 df-cnv 3186 df-dm 3188 df-rn 3189 df-res 3190 df-ima 3191 df-fv 3198 df-opr 3965 |