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Theorem sylan2d 468
Description: A syllogism deduction. (Contributed by NM, 15-Dec-2004.)
Hypotheses
Ref Expression
sylan2d.1
sylan2d.2
Assertion
Ref Expression
sylan2d

Proof of Theorem sylan2d
StepHypRef Expression
1 sylan2d.1 . . 3
2 sylan2d.2 . . . 4
32ancomsd 440 . . 3
41, 3syland 467 . 2
54ancomsd 440 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:  syl2and  469  sylan2i  636
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