im.bidian

Theorem.

Arguments:

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

Assertions:

((())(()()))

Proof:

Hyp	Ref	Line	Expr
	conb	1	(()())
1	bi.bldim>	2	((())(()))
	im.bidi	3	((())(()()))
	conb	4	((()())(()()))
2, 3, 4	2bitr	5	((())(()()))
	df-an	6	(()())
	df-an	7	(()())
6, 7	bi.bldbi<>	8	((()())(()()))
5, 8	><bitr	9	((())(()()))