Theorem truantru 1292

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

Assertion

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

Proof of Theorem truantru

Step	Hyp	Ref	Expression
1		anidm 376	1 |- ( ( T. /\ T. ) <-> T. )

Syntax hints:   /\ wa 97   <-> wb 98   T. wtru 1244

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101

This theorem depends on definitions:  df-bi 110

This theorem is referenced by: (None)