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Theorem oveq123d 5889
Description: Equality deduction for operation value. (Contributed by FL, 22-Dec-2008.)
Hypotheses
Ref Expression
oveq123d.1  |-  ( ph  ->  F  =  G )
oveq123d.2  |-  ( ph  ->  A  =  B )
oveq123d.3  |-  ( ph  ->  C  =  D )
Assertion
Ref Expression
oveq123d  |-  ( ph  ->  ( A F C )  =  ( B G D ) )

Proof of Theorem oveq123d
StepHypRef Expression
1 oveq123d.1 . . 3  |-  ( ph  ->  F  =  G )
21oveqd 5885 . 2  |-  ( ph  ->  ( A F C )  =  ( A G C ) )
3 oveq123d.2 . . 3  |-  ( ph  ->  A  =  B )
4 oveq123d.3 . . 3  |-  ( ph  ->  C  =  D )
53, 4oveq12d 5886 . 2  |-  ( ph  ->  ( A G C )  =  ( B G D ) )
62, 5eqtrd 2210 1  |-  ( ph  ->  ( A F C )  =  ( B G D ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1353  (class class class)co 5868
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-ext 2159
This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-nf 1461  df-sb 1763  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-rex 2461  df-v 2739  df-un 3133  df-sn 3597  df-pr 3598  df-op 3600  df-uni 3808  df-br 4001  df-iota 5173  df-fv 5219  df-ov 5871
This theorem is referenced by:  csbov123g  5906  issgrp  12688  sgrp1  12695  ismndd  12717  grpsubfvalg  12795  grpsubpropdg  12850  issrg  12961  srgidmlem  12974  isring  12996  ringass  13012  ringidmlem  13018  isringd  13033  ring1  13049  unitlinv  13107  unitrinv  13108
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