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Theorem eqbrtri 4152
Description: Substitution of equal classes into a binary relation. (Contributed by NM, 5-Aug-1993.)
Hypotheses
Ref Expression
eqbrtr.1 𝐴 = 𝐵
eqbrtr.2 𝐵𝑅𝐶
Assertion
Ref Expression
eqbrtri 𝐴𝑅𝐶

Proof of Theorem eqbrtri
StepHypRef Expression
1 eqbrtr.2 . 2 𝐵𝑅𝐶
2 eqbrtr.1 . . 3 𝐴 = 𝐵
32breq1i 4138 . 2 (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)
41, 3mpbir 146 1 𝐴𝑅𝐶
Colors of variables:    wff set class
This proof depends on syntax axioms:   = wceq 1402   class class class wbr 4131
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 4132
This theorem is used by:  eqbrtrri  4154  3brtr4i  4161  exmidpw2en  7224  exmidonfinlem  7552  neg1lt0  9422  halflt1  9534  3halfnz  9755  declei  9829  numlti  9830  faclbnd3  11204  geo2lim  12309  0.999...  12314  geoihalfsum  12315  fprodap0  12414  fprodap0f  12429  tan0  12524  cos2bnd  12553  sin4lt0  12560  eirraplem  12570  1nprm  12918  ballotfilemth  13340  znnen  13348  cnfldstr  15005  tan4thpi  16080  log2tlbndlog2  16232  ppiqltx  16293  bposlem8  16330  zabsle1  16335  ex-fl  16956  trilpolemisumle  17306
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