rpi33d

Theorem. A nested syllogism deduction.

Description:

syl6d in set.mm

Arguments:

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

Hypotheses:

(())

((()))

Assertions:

((()))

Proof:

Hyp	Ref	Line	Expr
	Hypo	1	(())
		2	((()))
1	syl<	3	((()()))
2, 3	syld	4	((()))