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Theorem reximia 2565
Description: Inference quantifying both antecedent and consequent. (Contributed by NM, 10-Feb-1997.)
Hypothesis
Ref Expression
reximia.1  |-  ( x  e.  A  ->  ( ph  ->  ps ) )
Assertion
Ref Expression
reximia  |-  ( E. x  e.  A  ph  ->  E. x  e.  A  ps )

Proof of Theorem reximia
StepHypRef Expression
1 rexim 2564 . 2  |-  ( A. x  e.  A  ( ph  ->  ps )  -> 
( E. x  e.  A  ph  ->  E. x  e.  A  ps )
)
2 reximia.1 . 2  |-  ( x  e.  A  ->  ( ph  ->  ps ) )
31, 2mprg 2527 1  |-  ( E. x  e.  A  ph  ->  E. x  e.  A  ps )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2141   E.wrex 2449
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1440  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-4 1503  ax-ial 1527
This theorem depends on definitions:  df-bi 116  df-ral 2453  df-rex 2454
This theorem is referenced by:  reximi  2567  iunpw  4465  nsmallnqq  7374  1idprl  7552  1idpru  7553  qmulz  9582  zq  9585  caubnd2  11081  sin0pilem1  13496
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