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Theorem 3com12 1155
Description: Commutation in antecedent. Swap 1st and 3rd. (Contributed by NM, 28-Jan-1996.) (Proof shortened by Andrew Salmon, 13-May-2011.)
Hypothesis
Ref Expression
3exp.1
Assertion
Ref Expression
3com12

Proof of Theorem 3com12
StepHypRef Expression
1 3ancoma 941 . 2
2 3exp.1 . 2
31, 2sylbi 187 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   w3a 934
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  df-3an 936
This theorem is referenced by:  3adant2l  1176  3adant2r  1177  fvun2  5380
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