Metamath Proof Explorer

Theorem truanfal

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

Ref Expression
Assertion truanfal ⊢ ⊤ ∧ ⊥ ↔ ⊥

Proof

Step Hyp Ref Expression
1 truan ⊢ ⊤ ∧ ⊥ ↔ ⊥