fv-and

Theorem.

Arguments:

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

Hypotheses:

(())

(())

Assertions:

((()()))

Proof:

Hyp	Ref	Line	Expr
	Hypo	1	(())
		2	(())
1, 2	im.bldan<>d	3	((()()))
	al.andi	4	(()())
3, 4	brpi33<	5	((()()))