syl>

Theorem.

Description:

Theorem *2.06 of PrincipiaMathematica, 1.100; imim1 in set.mm

Arguments:

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

Assertions:

(()(()()))

Proof:

Hyp	Ref	Line	Expr
	syl<	1	(()(()()))
1	com12i	2	(()(()()))