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Theorem opeq12i 3817
 Description: Equality inference for ordered pairs. (Contributed by NM, 16-Dec-2006.) (Proof shortened by Eric Schmidt, 4-Apr-2007.)
Hypotheses
Ref Expression
opeq1i.1
opeq12i.2
Assertion
Ref Expression
opeq12i

Proof of Theorem opeq12i
StepHypRef Expression
1 opeq1i.1 . 2
2 opeq12i.2 . 2
3 opeq12 3814 . 2
41, 2, 3mp2an 653 1
 Colors of variables: wff set class Syntax hints:   wceq 1632  cop 3656 This theorem is referenced by:  elxp6  6167  addcompq  8590  mulcompq  8592  addassnq  8598  mulassnq  8599  distrnq  8601  1lt2nq  8613  axi2m1  8797  om2uzrdg  11035  rngoi  21063  nvop2  21180  nvvop  21181  phop  21412  hhsssh  21862  axlowdimlem6  24647  dedalg  25846  catded  25867  isdrngo1  26690 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1536  ax-5 1547  ax-17 1606  ax-9 1644  ax-8 1661  ax-6 1715  ax-7 1720  ax-11 1727  ax-12 1878  ax-ext 2277 This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-tru 1310  df-ex 1532  df-nf 1535  df-sb 1639  df-clab 2283  df-cleq 2289  df-clel 2292  df-nfc 2421  df-rab 2565  df-v 2803  df-dif 3168  df-un 3170  df-in 3172  df-ss 3179  df-nul 3469  df-if 3579  df-sn 3659  df-pr 3660  df-op 3662
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