Nuprl - Pf discrete list 1 1 2 2 2 1 1 2 1

(44steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc

At: discrete list 1 1 2 2 2 1 1 2 1

1. T: Type
2. Discrete{T}
3. x: T List
4. u: T
5. v: T List
6. y: T List
7. u1: T
8. v1: T List
9. u.v = v1
10. v = v1
11. f: TT
12. x,y:T. f(x,y) x = y T

u.v = u1.v1 u.v = u1.v1

By: With u (Analyze -1) THEN With u1 (Analyze -1) THEN Decide (f(u,u1))

Generated subgoals:

1 12. f(u,u1) u = u1
13. f(u,u1)
u.v = u1.v1 u.v = u1.v1

2 12. f(u,u1) u = u1
13. f(u,u1)
u.v = u1.v1 u.v = u1.v1

About:

(44steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc