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Metamath Proof Explorer

Theorem 3imp231

Description: Importation inference. (Contributed by Alan Sare, 17-Oct-2017)

		Ref	Expression
	Hypothesis	3imp.1	$⊢ φ \to (ψ \to (χ \to θ))$
	Assertion	3imp231	$⊢ (ψ \land χ \land φ) \to θ$

Step	Hyp	Ref	Expression
1		3imp.1	$⊢ φ \to (ψ \to (χ \to θ))$
2	1	com3l	$⊢ ψ \to (χ \to (φ \to θ))$
3	2	3imp	$⊢ (ψ \land χ \land φ) \to θ$