eqneqd

Theorem.

Arguments:

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

Hypotheses:

((()()))

Assertions:

((()()))

Proof:

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