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Theorem breqtrdi 4172
Description: A chained equality inference for a binary relation. (Contributed by NM, 11-Oct-1999.)
Hypotheses
Ref Expression
breqtrdi.1 (𝜑 → 𝐴𝑅𝐵)
breqtrdi.2 𝐵 = 𝐶
Assertion
Ref Expression
breqtrdi (𝜑 → 𝐴𝑅𝐶)

Proof of Theorem breqtrdi
StepHypRef Expression
1 breqtrdi.1 . 2 (𝜑 → 𝐴𝑅𝐵)
2 eqid 2238 . 2 𝐴 = 𝐴
3 breqtrdi.2 . 2 𝐵 = 𝐶
41, 2, 33brtr3g 4164 1 (𝜑 → 𝐴𝑅𝐶)
Colors of variables:    wff set class
This proof depends on syntax axioms:   → wi 4   = 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:  breqtrrdi  4173  en2eleq  7553  en2other2  7554  dju0en  7576  ltm1sr  8150  maxle2  12000  xrmax2sup  12044  mertenslem2  12327  ege2le3  12462  cos01gt0  12554  sin02gt0  12555  cos12dec  12559  bitsfzolem  12745  bitsmod  12747  unennn  13345  dvef  15970  sin0pilem2  16026  cosq23lt0  16077  cosq34lt1  16095  cos02pilt1  16096  logbgcd1irraplemexp  16221  pellexlem2  16247  ppiqeq0  16297  ppiqub  16310  bposlem1  16328  bposlem2  16329  lgslem3  16343  lgsquadlem1  16418  lgsquadlem3  16420  trilpolemeq1  17313
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