Theorem truantru 1581

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

Assertion

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

Proof of Theorem truantru

Step	Hyp	Ref	Expression
1		anidm 570	1 ⊢ ((⊤ ∧ ⊤) ↔ ⊤)

Syntax hints:   ↔ wb 208   ∧ wa 397  ⊤wtru 1549

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 209  df-an 398

This theorem is referenced by: (None)