Theorem falorfal 1426

Description: A \/ identity. (Contributed by Anthony Hart, 22-Oct-2010.) (Proof shortened by Andrew Salmon, 13-May-2011.)

Assertion

Ref	Expression
falorfal

Proof of Theorem falorfal

Step	Hyp	Ref	Expression
1		oridm 514	1

Syntax hints:  <->wb 184  \/wo 368  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