>bid

Theorem.

Arguments:

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

Hypotheses:

(())

(())

Assertions:

(())

Proof:

Hyp	Ref	Line	Expr
	Hypo	1	(())
		2	(())
1, 2	jca	3	((()()))
	dfbi	4	(()(()()))
3, 4	brpi22<	5	(())