Theorem expcomd

Description: Deduction form of expcom . (Contributed by Alan Sare, 22-Jul-2012)

	Ref	Expression
Hypothesis	expcomd.1	$$⊢\phi \to \left(\left(\psi \wedge \chi \right)\to \theta \right)$$
Assertion	expcomd	$$⊢\phi \to \left(\chi \to \left(\psi \to \theta \right)\right)$$

Proof

Step	Hyp	Ref	Expression
1		expcomd.1	$$⊢\phi \to \left(\left(\psi \wedge \chi \right)\to \theta \right)$$
2	1	expd	$$⊢\phi \to \left(\psi \to \left(\chi \to \theta \right)\right)$$
3	2	com23	$$⊢\phi \to \left(\chi \to \left(\psi \to \theta \right)\right)$$