Nuprl - Pf not disjoint is member lemma 1 1 1 2 1 1 1 1 2 1 1

(33steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc

At: not disjoint is member lemma 1 1 1 2 1 1 1 1 2 1 1

1. T: Type
2. eq: {T=}
3. eq TT
4. x,y:T. eq(x,y) x = y
5. L: T List
6. u: T
7. v: T List
8. M: T List
9. disjoint(eq;v;M)
10. x:T. x(eq) v & x(eq) M

x:T. if eq(x,u) true else x(eq) v fi & x(eq) M

By: Analyze -1 THEN Analyze -1

Generated subgoal:

1 10. x: T
11. x(eq) v
12. x(eq) M
x:T. if eq(x,u) true else x(eq) v fi & x(eq) M

About:

(33steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc