Theorem truanfal 1397

Description: A /\ identity. (Contributed by Anthony Hart, 22-Oct-2010.)

Assertion

Ref	Expression
truanfal	|- ( ( T. /\ F. ) <-> F. )

Proof of Theorem truanfal

Step	Hyp	Ref	Expression
1		truan 1365	1 |- ( ( T. /\ F. ) <-> F. )

Syntax hints:   /\ wa 103   <-> wb 104   T. wtru 1349   F. wfal 1353

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107

This theorem depends on definitions:  df-bi 116  df-tru 1351

This theorem is referenced by: (None)