3syl

Theorem. Inference chaining two syllogisms.

Arguments:

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

Hypotheses:

()

()

()

Assertions:

()

Proof:

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