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Theorem eqbrtrri 3785
 Description: Substitution of equal classes into a binary relation. (Contributed by NM, 5-Aug-1993.)
Hypotheses
Ref Expression
eqbrtrr.1 𝐴 = 𝐵
eqbrtrr.2 𝐴𝑅𝐶
Assertion
Ref Expression
eqbrtrri 𝐵𝑅𝐶

Proof of Theorem eqbrtrri
StepHypRef Expression
1 eqbrtrr.1 . . 3 𝐴 = 𝐵
21eqcomi 2044 . 2 𝐵 = 𝐴
3 eqbrtrr.2 . 2 𝐴𝑅𝐶
42, 3eqbrtri 3783 1 𝐵𝑅𝐶
 Colors of variables: wff set class Syntax hints:   = wceq 1243   class class class wbr 3764 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-io 630  ax-5 1336  ax-7 1337  ax-gen 1338  ax-ie1 1382  ax-ie2 1383  ax-8 1395  ax-10 1396  ax-11 1397  ax-i12 1398  ax-bndl 1399  ax-4 1400  ax-17 1419  ax-i9 1423  ax-ial 1427  ax-i5r 1428  ax-ext 2022 This theorem depends on definitions:  df-bi 110  df-3an 887  df-tru 1246  df-nf 1350  df-sb 1646  df-clab 2027  df-cleq 2033  df-clel 2036  df-nfc 2167  df-v 2559  df-un 2922  df-sn 3381  df-pr 3382  df-op 3384  df-br 3765 This theorem is referenced by:  3brtr3i  3791  expnass  9357  sqrt2gt1lt2  9647
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