At:
not list all not iff list exists11211121
1.
T: Type
2.
P: TProp
3.
L: T List
4.
u: T
5.
v: T List
6.
xv.(P(x)) xv.P(x)
7.
(P(u) & xv.(P(x)))
8.
(P(u) & xv.(P(x))) P(u) xv.(P(x))
9.
P(u)
xv.(P(x))
By:
Analyze -2
THEN
Thin -2
Generated subgoal: