Theorem bj-peircei

Description: Inference associated with peirce . (Contributed by BJ, 30-Mar-2020)

	Ref	Expression
Hypothesis	bj-peircei.1	|- ( ( ph -> ps ) -> ph )
Assertion	bj-peircei	|- ph

Proof

Step	Hyp	Ref	Expression
1		bj-peircei.1	|- ( ( ph -> ps ) -> ph )
2		peirce	|- ( ( ( ph -> ps ) -> ph ) -> ph )
3	1 2	ax-mp	|- ph