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Theorem hbaes 1698
Description: Rule that applies hbae 1696 to antecedent. (Contributed by NM, 5-Aug-1993.)
Hypothesis
Ref Expression
hbalequs.1  |-  ( A. z A. x  x  =  y  ->  ph )
Assertion
Ref Expression
hbaes  |-  ( A. x  x  =  y  ->  ph )

Proof of Theorem hbaes
StepHypRef Expression
1 hbae 1696 . 2  |-  ( A. x  x  =  y  ->  A. z A. x  x  =  y )
2 hbalequs.1 . 2  |-  ( A. z A. x  x  =  y  ->  ph )
31, 2syl 14 1  |-  ( A. x  x  =  y  ->  ph )
Colors of variables: wff set class
Syntax hints:    -> wi 4   A.wal 1329
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-io 698  ax-5 1423  ax-7 1424  ax-gen 1425  ax-ie2 1470  ax-8 1482  ax-10 1483  ax-11 1484  ax-i12 1485  ax-4 1487  ax-17 1506  ax-i9 1510  ax-ial 1514
This theorem depends on definitions:  df-bi 116
This theorem is referenced by: (None)
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