Theorem eelT

Description: An elimination deduction. (Contributed by Alan Sare, 5-Feb-2017) (Proof modification is discouraged.) (New usage is discouraged.)

	Ref	Expression
Hypotheses	eelT.1	$$⊢\top \to \phi$$
	eelT.2	$$⊢\phi \to \psi$$
Assertion	eelT	$$⊢\psi$$

Proof

Step	Hyp	Ref	Expression
1		eelT.1	$$⊢\top \to \phi$$
2		eelT.2	$$⊢\phi \to \psi$$
3	1 2	syl	$$⊢\top \to \psi$$
4	3	mptru	$$⊢\psi$$