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Theorem pm3.2an3 1175
Description: Version of pm3.2 447 for a triple conjunction. (Contributed by Alan Sare, 24-Oct-2011.)
Assertion
Ref Expression
pm3.2an3

Proof of Theorem pm3.2an3
StepHypRef Expression
1 pm3.2 447 . . 3
21ex 434 . 2
3 df-3an 975 . . 3
43bicomi 202 . 2
52, 4syl8ib 231 1
Colors of variables: wff setvar class
Syntax hints:  ->wi 4  /\wa 369  /\w3a 973
This theorem is referenced by:  3exp  1195  tratrb  33307  19.21a3con13vVD  33652  tratrbVD  33661
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 185  df-an 371  df-3an 975
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