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Theorem dfopg 4215
Description: Value of the ordered pair when the arguments are sets. (Contributed by Mario Carneiro, 26-Apr-2015.) (Avoid depending on this detail.)
Assertion
Ref Expression
dfopg

Proof of Theorem dfopg
StepHypRef Expression
1 elex 3118 . 2
2 elex 3118 . 2
3 dfopif 4214 . . 3
4 iftrue 3947 . . 3
53, 4syl5eq 2510 . 2
61, 2, 5syl2an 477 1
Colors of variables: wff setvar class
Syntax hints:  ->wi 4  /\wa 369  =wceq 1395  e.wcel 1818   cvv 3109   c0 3784  ifcif 3941  {csn 4029  {cpr 4031  <.cop 4035
This theorem is referenced by:  dfop  4216  opnz  4723  opth1  4725  opth  4726  0nelop  4742  opwf  8251  rankopb  8291  wunop  9121  tskop  9170  gruop  9204  bj-elopg  34602
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-5 1704  ax-6 1747  ax-7 1790  ax-10 1837  ax-11 1842  ax-12 1854  ax-13 1999  ax-ext 2435
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 975  df-tru 1398  df-ex 1613  df-nf 1617  df-sb 1740  df-clab 2443  df-cleq 2449  df-clel 2452  df-nfc 2607  df-v 3111  df-dif 3478  df-in 3482  df-ss 3489  df-nul 3785  df-if 3942  df-op 4036
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