Nuprl - Proof: fun exp compose 2 1 1 2 2

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At: fun exp compose 2 1 1 2 2

1. T : Type
2. n :

3. 0<n
4.

h,f:(T

T). f^n-1 o h = primrec(n-1;h;

i,g. f o g)
5. h : T

T
6. f : T

f o f^n-1 o h = f o primrec(n-1;h;

i,g. f o g)

By:	Subst (f^n-1 o h = primrec(n-1;h;i,g. f o g)) 0

Generated subgoal:

1 f^n-1 o h = primrec(n-1;h;i,g. f o g)
1 step

About:

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