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At: list all all 1 2 2 2 1

1. T: Type
2. eq: {T=}
3. P: TType
4. L: T List
5. u: T
6. v: T List
7. (x:{x:T| x(eq) v }. P(x)) xv.P(x)
8. x:{x:T| if eq(x,u) true else x(eq) v fi }. P(x)
9. x: {x:T| x(eq) v }

x {x:T| if eq(x,u) true else x(eq) v fi }

By: Analyze -1

Generated subgoal:

19. x: T
10. x(eq) v
x {x:T| if eq(x,u) true else x(eq) v fi }

About:
listbtrueifthenelseassertset
applyfunctionuniversememberimpliesall

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