(35steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc

At: list exists is member lemma 1 1 2 1 1 2 1 1 1

1. T: Type
2. eq: TT
3. (x,y:T. eq(x,y) x = y) & eq TT
4. P: TProp
5. L: T List
6. x: T
7. P(x)
8. u: T
9. v: T List
10. x(eq) v yv.P(y)
11. if eq(x,u) true else x(eq) v fi
12. eq(x,u)

x(eq) v

By: Rewrite (LemmaC Thm* P:. P P = false) 12

Generated subgoal:

112. eq(x,u) = false
x(eq) v

About:
listboolbtrueifthenelseassertapplyfunction
universeequalmemberpropimpliesandall

(35steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc