Theorem exlimiiv

Description: Inference (Rule C) associated with exlimiv . (Contributed by BJ, 19-Dec-2020)

	Ref	Expression
Hypotheses	exlimiv.1	|- ( ph -> ps )
	exlimiiv.2	|- E. x ph
Assertion	exlimiiv	|- ps

Proof

Step	Hyp	Ref	Expression
1		exlimiv.1	|- ( ph -> ps )
2		exlimiiv.2	|- E. x ph
3	1	exlimiv	|- ( E. x ph -> ps )
4	2 3	ax-mp	|- ps