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Theorem reximi 2647
Description: Inference quantifying both antecedent and consequent. (Contributed by NM, 18-Oct-1996.)
Hypothesis
Ref Expression
reximi.1  |-  ( ph  ->  ps )
Assertion
Ref Expression
reximi  |-  ( E. x  e.  A  ph  ->  E. x  e.  A  ps )

Proof of Theorem reximi
StepHypRef Expression
1 reximi.1 . . 3  |-  ( ph  ->  ps )
21a1i 9 . 2  |-  ( x  e.  A  ->  ( ph  ->  ps ) )
32reximia 2645 1  |-  ( E. x  e.  A  ph  ->  E. x  e.  A  ps )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    e. wcel 2209   E.wrex 2529
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1500  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-4 1563  ax-ial 1587
This proof depends on definitions:  df-bi 117  df-ral 2533  df-rex 2534
This theorem is used by:  rexanaliim  2656  r19.29d2r  2695  r19.35-1  2701  r19.40  2705  reu3  3016  ssiun  4054  iinss  4064  elunirn  5972  tfrcllemssrecs  6623  nnawordex  6802  iinerm  6881  erovlem  6901  xpf1o  7144  fidcenumlemim  7269  omniwomnimkv  7507  genprndl  7888  genprndu  7889  appdiv0nq  7931  ltexprlemm  7967  recexsrlem  8141  rereceu  8256  recexre  8906  aprcl  8974  rexanre  11986  climi2  12054  climi0  12055  climcaucn  12117  prodmodclem2  12344  prodmodc  12345  gcdsupex  12734  gcdsupcl  12735  bezoutlemeu  12784  dfgcd3  12787  isnsgrp  13721  rhmdvdsr  14482  eltg2b  15155  lmcvg  15318  cnptoprest  15340  lmtopcnp  15351  txbas  15359  metrest  15607  elply2  15836  2sqlem7  16240  umgr2edg1  16450  umgr2edgneu  16453  bj-charfunbi  16837  bj-findis  17005
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