syl34

Theorem. Inference joining two implications.

Description:

imim12i in set.mm

Arguments:

(pr), (pr), (pr), (pr),

Hypotheses:

()

()

Assertions:

(()())

Proof:

Hyp	Ref	Line	Expr
	Hypo	1	()
		2	()
1	syl<	3	(()())
2	syl>	4	(()())
3, 4	syl	5	(()())