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Metamath Proof Explorer

Theorem falortru

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

Ref Expression
Assertion falortru ( ( ⊥ ∨ ⊤ ) ↔ ⊤ )

Proof

Step Hyp Ref Expression
1 tru ⊢ ⊤
2 1 olci ⊢ ( ⊥ ∨ ⊤ )
3 2 bitru ⊢ ( ( ⊥ ∨ ⊤ ) ↔ ⊤ )