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Metamath Proof Explorer

Theorem simp2

Description: Simplification of triple conjunction. (Contributed by NM, 21-Apr-1994) (Proof shortened by Wolf Lammen, 22-Jun-2022)

		Ref	Expression
	Assertion	simp2	$⊢ (φ \land ψ \land χ) \to ψ$

Step	Hyp	Ref	Expression
1		id	$⊢ ψ \to ψ$
2	1	3ad2ant2	$⊢ (φ \land ψ \land χ) \to ψ$