∃∨∃mo
Theorem.
Arguments:
(sv),
(pr),
Assertions:
(
)
Proof:
Hyp
Ref
Line
Expr
<neg
1
(
(
))
df-∃mo
2
(
(
))
1, 2
brpi22<
3
(
)
3
df-or
4
(
)