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At: list all all 1 2 2 1 1 1 2 1

1. T: Type
2. eq: {T=}
3. eq TT
4. x,y:T. eq(x,y) x = y
5. P: TType
6. L: T List
7. u: T
8. v: T List
9. (x:{x:T| x(eq) v }. P(x)) xv.P(x)
10. eq(u,u) = false

u(eq) v

By:
Witness4 u
THEN
With u (Analyze -1)


Generated subgoal:

14. P: TType
5. L: T List
6. u: T
7. v: T List
8. (x:{x:T| x(eq) v }. P(x)) xv.P(x)
9. eq(u,u) = false
10. eq(u,u) u = u
u(eq) v

About:
listboolbfalseassertsetapply
functionuniverseequalmemberimplies
all

(26steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc