Theorem truantru 1336

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

Assertion

Ref	Expression
truantru	⊢ (( ⊤ ∧ ⊤ ) ↔ ⊤ )

Proof of Theorem truantru

Step	Hyp	Ref	Expression
1		anidm 625	1 ⊢ (( ⊤ ∧ ⊤ ) ↔ ⊤ )

Syntax hints:   ↔ wb 176   ∧ wa 358   ⊤ wtru 1316

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 177  df-an 360

This theorem is referenced by: (None)