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| Description: Equality theorem for operation value. |
| Ref | Expression |
|---|---|
| opreq |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq1 3780 |
. 2
| |
| 2 | df-opr 4023 |
. 2
| |
| 3 | df-opr 4023 |
. 2
| |
| 4 | 1, 2, 3 | 3eqtr4g 1578 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: opreqi 4032 opreqd 4035 hboprd 4040 mapxpen 4560 seq1val 6571 ismet 7883 ismsg 7885 msflem 7888 blfval 7920 isgrp 8126 grpidval 8142 grpinvfval 8150 grpdivfval 8165 isabl 8185 isring 8225 ringi 8226 vci 8251 isvclem 8280 isnvlem 8313 nvi 8317 isphg 8560 elghomlem1 10467 vri 10583 isded 10751 dedi 10752 iscat 10769 cati 10770 ismona 10819 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1003 ax-gen 1004 ax-8 1005 ax-10 1007 ax-11 1008 ax-12 1009 ax-13 1010 ax-14 1011 ax-17 1012 ax-4 1014 ax-5o 1016 ax-6o 1019 ax-9o 1164 ax-10o 1182 ax-16 1252 ax-11o 1260 ax-ext 1504 ax-sep 2758 ax-pow 2798 ax-pr 2835 |
| This theorem depends on definitions: df-bi 154 df-or 231 df-an 232 df-ex 1022 df-sb 1214 df-eu 1424 df-mo 1425 df-clab 1510 df-cleq 1515 df-clel 1518 df-ne 1634 df-v 1859 df-dif 2100 df-un 2101 df-in 2102 df-ss 2104 df-nul 2332 df-pw 2454 df-sn 2464 df-pr 2465 df-op 2468 df-uni 2558 df-br 2675 df-opab 2722 df-cnv 3243 df-dm 3245 df-rn 3246 df-res 3247 df-ima 3248 df-fv 3255 df-opr 4023 |