Description: Equality deduction for operation value. (Contributed by NM, 10-Aug-1995)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | oveq1d.1 | |- ( ph -> A = B ) |
|
| opreqan12i.2 | |- ( ps -> C = D ) |
||
| Assertion | oveqan12rd | |- ( ( ps /\ ph ) -> ( A F C ) = ( B F D ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oveq1d.1 | |- ( ph -> A = B ) |
|
| 2 | opreqan12i.2 | |- ( ps -> C = D ) |
|
| 3 | 1 2 | oveqan12d | |- ( ( ph /\ ps ) -> ( A F C ) = ( B F D ) ) |
| 4 | 3 | ancoms | |- ( ( ps /\ ph ) -> ( A F C ) = ( B F D ) ) |