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Theorem nomcon5 306
Description: Lemma for "Non-Orthomodular Models..." paper. (Contributed by NM, 7-Feb-1999.)
Assertion
Ref Expression
nomcon5 (ab) = (ba )

Proof of Theorem nomcon5
StepHypRef Expression
1 bicom 96 . 2 (ab) = (ba)
2 conb 122 . 2 (ba) = (ba )
31, 2ax-r2 36 1 (ab) = (ba )
Colors of variables: term
Syntax hints:   = wb 1   wn 4  tb 5
This theorem was proved from axioms:  ax-a1 30  ax-a2 31  ax-r1 35  ax-r2 36  ax-r4 37  ax-r5 38
This theorem depends on definitions:  df-b 39  df-a 40
This theorem is referenced by: (None)
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