bv-↔

Theorem.

Arguments:

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

Hypotheses:

( bound in )

( bound in )

Assertions:

( bound in ())

Proof:

Hyp	Ref	Line	Expr
	Hypo	1	( bound in )
		2	( bound in )
1, 2	bv-→	3	( bound in ())
1, 2	bv-→	4	( bound in ())
3, 4	bv-∧	5	( bound in (()()))
	dfbi	6	(()(()()))
5, 6	bvdef	7	( bound in ())