Nuprl - Proof: compose iter prod 1 2 1 1

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At: compose iter prod 1 2 1 1

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

A
4. i :

5. j :

6.

j1:

. j1<j

(

k:

. k = i

j1

f{

i}{

j1}(x) = f{

k}(x))
7. k :

8. k = i

j
9.

j = 0
10. i = 0

f{

0}{

j}(x) = f{

0}(x)

By:	Rewrite by Thm* f:(AA). f{0} = Id ...

Generated subgoal:

1 Id{j}(x) = Id(x) A
1 step

About:

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

(14steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc