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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 ⊢ ( ( ⊤ ∧ ⊥ ) ↔ ⊥ )