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Theorem hbaes 1713
Description: Rule that applies hbae 1711 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 1711 . 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 1346
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 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527
This theorem depends on definitions:  df-bi 116
This theorem is referenced by: (None)
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