Theorem falortru 1425

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

Assertion

Ref	Expression
falortru

Proof of Theorem falortru

Step	Hyp	Ref	Expression
1		tru 1399	. . 3
2	1	olci 391	. 2
3	2	bitru 1407	1

Syntax hints:  <->wb 184  \/wo 368  wtru 1396  wfal 1400

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 185  df-or 370  df-tru 1398