eqt<>d

Theorem.

Arguments:

(st), (st), (coll), (coll), (pr),

Hypotheses:

(())

(())

Assertions:

((()()))

Proof:

Hyp	Ref	Line	Expr
	Hypo	1	(())
		2	(())
1, 2	jca	3	((()()))
3	eqt<>	4	((()()))