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Theorem pm3.2an3 1082
Description: pm3.2 126 for a triple conjunction. (Contributed by Alan Sare, 24-Oct-2011.)
Assertion
Ref Expression
pm3.2an3

Proof of Theorem pm3.2an3
StepHypRef Expression
1 pm3.2 126 . . 3
21ex 108 . 2
3 df-3an 886 . . 3
43bicomi 123 . 2
52, 4syl8ib 155 1
Colors of variables: wff set class
Syntax hints:   wi 4   wa 97   w3a 884
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101
This theorem depends on definitions:  df-bi 110  df-3an 886
This theorem is referenced by:  3exp  1102
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