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Theorem com24 81
Description: Commutation of antecedents. Swap 2nd and 4th. (Contributed by NM, 25-Apr-1994.) (Proof shortened by Wolf Lammen, 28-Jul-2012.)
Hypothesis
Ref Expression
com4.1
Assertion
Ref Expression
com24

Proof of Theorem com24
StepHypRef Expression
1 com4.1 . . 3
21com4t 79 . 2
32com13 74 1
Colors of variables: wff setvar class
Syntax hints:   wi 4
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 8
This theorem is referenced by:  com25  85  nclenn  6249
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