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Theorem eqbrtri 4151
Description: Substitution of equal classes into a binary relation. (Contributed by NM, 5-Aug-1993.)
Hypotheses
Ref Expression
eqbrtr.1  |-  A  =  B
eqbrtr.2  |-  B R C
Assertion
Ref Expression
eqbrtri  |-  A R C

Proof of Theorem eqbrtri
StepHypRef Expression
1 eqbrtr.2 . 2  |-  B R C
2 eqbrtr.1 . . 3  |-  A  =  B
32breq1i 4137 . 2  |-  ( A R C  <->  B R C )
41, 3mpbir 146 1  |-  A R C
Colors of variables:    wff set class
This proof depends on syntax axioms:    = wceq 1402   class class class wbr 4130
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-v 2823  df-un 3224  df-sn 3715  df-pr 3716  df-op 3718  df-br 4131
This theorem is used by:  eqbrtrri  4153  3brtr4i  4160  exmidpw2en  7219  exmidonfinlem  7546  neg1lt0  9415  halflt1  9527  3halfnz  9748  declei  9822  numlti  9823  faclbnd3  11197  geo2lim  12302  0.999...  12307  geoihalfsum  12308  fprodap0  12407  fprodap0f  12422  tan0  12517  cos2bnd  12546  sin4lt0  12553  eirraplem  12563  1nprm  12911  ballotfilemth  13333  znnen  13341  cnfldstr  14979  tan4thpi  16034  log2tlbndlog2  16181  ppiqltx  16242  bposlem8  16279  zabsle1  16284  ex-fl  16905  trilpolemisumle  17254
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