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Theorem syl6breqr 3883
Description: A chained equality inference for a binary relation. (Contributed by NM, 24-Apr-2005.)
Hypotheses
Ref Expression
syl6breqr.1 (𝜑𝐴𝑅𝐵)
syl6breqr.2 𝐶 = 𝐵
Assertion
Ref Expression
syl6breqr (𝜑𝐴𝑅𝐶)

Proof of Theorem syl6breqr
StepHypRef Expression
1 syl6breqr.1 . 2 (𝜑𝐴𝑅𝐵)
2 syl6breqr.2 . . 3 𝐶 = 𝐵
32eqcomi 2092 . 2 𝐵 = 𝐶
41, 3syl6breq 3882 1 (𝜑𝐴𝑅𝐶)
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1289   class class class wbr 3843
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 665  ax-5 1381  ax-7 1382  ax-gen 1383  ax-ie1 1427  ax-ie2 1428  ax-8 1440  ax-10 1441  ax-11 1442  ax-i12 1443  ax-bndl 1444  ax-4 1445  ax-17 1464  ax-i9 1468  ax-ial 1472  ax-i5r 1473  ax-ext 2070
This theorem depends on definitions:  df-bi 115  df-3an 926  df-tru 1292  df-nf 1395  df-sb 1693  df-clab 2075  df-cleq 2081  df-clel 2084  df-nfc 2217  df-v 2621  df-un 3003  df-sn 3450  df-pr 3451  df-op 3453  df-br 3844
This theorem is referenced by:  fiunsnnn  6587  unsnfi  6619  exmidfodomrlemr  6818  exmidfodomrlemrALT  6819  gtndiv  8831  intqfrac2  9714  uzenom  9820  ege2le3  10948  eirraplem  11051
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