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Theorem ax11b 1656
Description: A bidirectional version of ax-11o 1654.
Assertion
Ref Expression
ax11b

Proof of Theorem ax11b
StepHypRef Expression
1 ax-11o 1654 . . 3
21imp 114 . 2
3 ax-4 1392 . . . 4
43com12 26 . . 3
54adantl 261 . 2
62, 5impbid 119 1
Colors of variables: wff set class
Syntax hints:   wn 3   wi 4   wa 96   wb 97  wal 1335
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 8  ax-ia1 98  ax-ia2 99  ax-ia3 100  ax-4 1392  ax-11o 1654
This theorem depends on definitions:  df-bi 109
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