ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  breqtrdi GIF version

Theorem breqtrdi 4171
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 4163 1 (𝜑 → 𝐴𝑅𝐶)
Colors of variables:    wff set class
This proof depends on syntax axioms:   → wi 4   = 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:  breqtrrdi  4172  en2eleq  7548  en2other2  7549  dju0en  7571  ltm1sr  8145  maxle2  11995  xrmax2sup  12039  mertenslem2  12322  ege2le3  12457  cos01gt0  12549  sin02gt0  12550  cos12dec  12554  bitsfzolem  12740  bitsmod  12742  unennn  13340  dvef  15919  sin0pilem2  15975  cosq23lt0  16026  cosq34lt1  16043  cos02pilt1  16044  logbgcd1irraplemexp  16165  pellexlem2  16191  ppiqeq0  16241  ppiqub  16254  bposlem1  16272  bposlem2  16273  lgslem3  16287  lgsquadlem1  16362  lgsquadlem3  16364  trilpolemeq1  17256
  Copyright terms: Public domain W3C validator