Theorem falortru 1342

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 1321	. . 3 |- T.
2	1	olci 380	. 2 |- ( F. \/ T. )
3	2	bitru 1326	1 |- (( F. \/ T. ) <-> T. )

This proof depends on syntax axioms:   <-> wb 176   \/ wo 357   T. wtru 1316   F. wfal 1317

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This proof depends on definitions:  df-bi 177  df-or 359  df-tru 1319

This theorem is used by: (None)