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| Description: Equality theorem for operation value. |
| Ref | Expression |
|---|---|
| opreq |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq1 3714 |
. 2
| |
| 2 | df-opr 3956 |
. 2
| |
| 3 | df-opr 3956 |
. 2
| |
| 4 | 1, 2, 3 | 3eqtr4g 1528 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: opreqi 3965 opreqd 3968 hboprd 3973 mapxpen 4481 seq1val 6257 ismet 7748 ismsg 7750 msflem 7753 blfval 7787 isgrp 7991 grpidval 8008 grpinvfval 8016 grpdivfval 8031 isabl 8052 isring 8093 ringi 8094 vci 8119 isvclem 8148 isnvlem 8181 nvi 8185 isphg 8420 elghomlem1 10316 subsp 10465 isded 10549 dedi 10550 iscat 10567 cati 10568 ismona 10615 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 960 ax-gen 961 ax-8 962 ax-10 964 ax-11 965 ax-12 966 ax-13 967 ax-14 968 ax-17 969 ax-4 971 ax-5o 973 ax-6o 976 ax-9o 1121 ax-10o 1138 ax-16 1208 ax-11o 1216 ax-ext 1457 ax-sep 2698 ax-pow 2737 ax-pr 2774 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 979 df-sb 1170 df-eu 1380 df-mo 1381 df-clab 1462 df-cleq 1467 df-clel 1470 df-ne 1584 df-v 1808 df-dif 2045 df-un 2046 df-in 2047 df-ss 2049 df-nul 2277 df-pw 2398 df-sn 2408 df-pr 2409 df-op 2412 df-uni 2499 df-br 2615 df-opab 2662 df-cnv 3181 df-dm 3183 df-rn 3184 df-res 3185 df-ima 3186 df-fv 3193 df-opr 3956 |