rpi33

Theorem. A syllogism rule of inference.

Description:

syl6 in set.mm

Arguments:

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

Hypotheses:

()

(())

Assertions:

(())

Proof:

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