exan>vv

Theorem.

Arguments:

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

Distinct variable conditions:

(, ), (, ),

Assertions:

(()())

Proof:

Hyp	Ref	Line	Expr
	exan>	1	(()())
1	eqt-∃-i	2	(()())
	exan>	3	(()())
2, 3	bitr	4	(()())