Theorem truantru 1391

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

Assertion

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

Proof of Theorem truantru

Step	Hyp	Ref	Expression
1		anidm 394	1 ⊢ ((⊤ ∧ ⊤) ↔ ⊤)

Syntax hints:   ∧ wa 103   ↔ wb 104  ⊤wtru 1344

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107

This theorem depends on definitions:  df-bi 116

This theorem is referenced by: (None)