eqt>n

Theorem.

Arguments:

(obj), (obj), (obj),

Assertions:

(()(()()))

Proof:

Hyp	Ref	Line	Expr
	eqt>	1	(()(()()))
1	bi.bldnegd	2	(()(()()))
	df-neq	3	(()())
	df-neq	4	(()())
2, 3, 4	<2bitrg	5	(()(()()))