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Theorem falimtru 1336
Description: A  -> identity. (Contributed by Anthony Hart, 22-Oct-2010.)
Assertion
Ref Expression
falimtru  |-  ( (  F.  ->  T.  )  <->  T.  )

Proof of Theorem falimtru
StepHypRef Expression
1 falim 1319 . 2  |-  (  F. 
->  T.  )
21bitru 1317 1  |-  ( (  F.  ->  T.  )  <->  T.  )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 176    T. wtru 1307    F. wfal 1308
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8
This theorem depends on definitions:  df-bi 177  df-tru 1310  df-fal 1311
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