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Theorem alim 1548
Description: Theorem 19.20 of [Margaris] p. 90. (Contributed by NM, 5-Aug-1993.) (Proof shortened by O'Cat, 30-Mar-2008.)
Assertion
Ref Expression
alim  |-  ( A. x ( ph  ->  ps )  ->  ( A. x ph  ->  A. x ps ) )

Proof of Theorem alim
StepHypRef Expression
1 ax-5 1547 1  |-  ( A. x ( ph  ->  ps )  ->  ( A. x ph  ->  A. x ps ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4   A.wal 1530
This theorem is referenced by:  al2imi  1551  19.21h  1743  19.21t  1802  stdpc5  1805  sbal1  2078  eunex  4219  hbaltg  24235  hbalg  28620  sbal1NEW7  29587
This theorem was proved from axioms:  ax-5 1547
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