imgen<

Theorem.

Arguments:

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

Hypotheses:

( bound in )

Assertions:

(()())

Proof:

Hyp	Ref	Line	Expr
	Hypo	1	( bound in )
	im.bldext	2	(()())
1	fv.eqex	3	()
2, 3	brpi33<	4	(()())
	bv-∃b	5	( bound in )
1, 5	bv-→	6	( bound in ())
	spec-ex	7	()
7	syl>	8	(()())
6, 8	imgen>i	9	(()())
4, 9	>bii	10	(()())