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Theorem coeq1i 4636
Description: Equality inference for composition of two classes. (Contributed by NM, 16-Nov-2000.)
Hypothesis
Ref Expression
coeq1i.1  |-  A  =  B
Assertion
Ref Expression
coeq1i  |-  ( A  o.  C )  =  ( B  o.  C
)

Proof of Theorem coeq1i
StepHypRef Expression
1 coeq1i.1 . 2  |-  A  =  B
2 coeq1 4634 . 2  |-  ( A  =  B  ->  ( A  o.  C )  =  ( B  o.  C ) )
31, 2ax-mp 7 1  |-  ( A  o.  C )  =  ( B  o.  C
)
Colors of variables: wff set class
Syntax hints:    = wceq 1299    o. ccom 4481
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 671  ax-5 1391  ax-7 1392  ax-gen 1393  ax-ie1 1437  ax-ie2 1438  ax-8 1450  ax-10 1451  ax-11 1452  ax-i12 1453  ax-bndl 1454  ax-4 1455  ax-17 1474  ax-i9 1478  ax-ial 1482  ax-i5r 1483  ax-ext 2082
This theorem depends on definitions:  df-bi 116  df-nf 1405  df-sb 1704  df-clab 2087  df-cleq 2093  df-clel 2096  df-nfc 2229  df-in 3027  df-ss 3034  df-br 3876  df-opab 3930  df-co 4486
This theorem is referenced by:  coeq12i  4640  cocnvcnv1  4985  upxp  12222  uptx  12224
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