imp
Theorem.
Arguments:
(pr),
(pr),
(pr),
Hypotheses:
(
(
))
Assertions:
((
)
)
Proof:
Hyp
Ref
Line
Expr
Hypo
1
(
(
))
impexp
2
(((
)
)
(
(
)))
2
bi<
3
((
(
))
((
)
))
1, 3
ax-mp
4
((
)
)