Nuprl - Proof: dedekind inf imp inf 1 1 1 1 1

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: dedekind inf imp inf 1 1 1 1 1

1. A : Type
2. a : A
3. f : A

A
4. Inj(A; A; f)
5.

(

x:A. f(x) = a)
6. n1 :

7. n2 :

8. f{

n1}(a) = f{

n2}(a)
9. n1<n2

x:A. f(x) = a

By:	Rewrite8 by Thm* x:A, f:(AA), k:, i:{0...k}. f{k}(x) = f{i}(f{k-i}(x)) Using:[x:= a \| k:= n2 \| i:= n1]

Generated subgoal:

1 10. f{n1}(a) = f{n1}(f{n2-n1}(a))
x:A. f(x) = a
4 steps

About:

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html