>nor
Theorem.
Arguments:
(pr),
(pr),
Hypotheses:
Assertions:
(
)
Proof:
Hyp
Ref
Line
Expr
Hypo
1
2
1, 2
>andi
3
(
)
nor.an
4
(
(
)
(
))
3, 4
bmp<
5
(
)