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Theorem anandirs 804
Description: Inference that undistributes conjunction in the antecedent. (Contributed by NM, 7-Jun-2004.)
Hypothesis
Ref Expression
anandirs.1
Assertion
Ref Expression
anandirs

Proof of Theorem anandirs
StepHypRef Expression
1 anandirs.1 . . 3
21an4s 799 . 2
32anabsan2 795 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   wa 358
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 177  df-an 360
This theorem is referenced by:  3impdir  1238  fvreseq  5398
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