Theorem falortru 1338

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

Assertion

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

Proof of Theorem falortru

Step	Hyp	Ref	Expression
1		tru 1288	. . 3 |- T.
2	1	olci 683	. 2 |- ( F. \/ T. )
3	2	bitru 1296	1 |- ( ( F. \/ T. ) <-> T. )

Syntax hints:   <-> wb 103   \/ wo 661   T. wtru 1285   F. wfal 1289

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 662

This theorem depends on definitions:  df-bi 115  df-tru 1287

This theorem is referenced by:  falxortru  1352