Theorem simpri

Description: Inference eliminating a conjunct. (Contributed by NM, 15-Jun-1994)

	Ref	Expression
Hypothesis	simpri.1	|- ( ph /\ ps )
Assertion	simpri	|- ps

Proof

Step	Hyp	Ref	Expression
1		simpri.1	|- ( ph /\ ps )
2		simpr	|- ( ( ph /\ ps ) -> ps )
3	1 2	ax-mp	|- ps