Nuprl - Proof: compose iter wf 1 2 1

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At: compose iter wf 1 2 1

1. A : Type
2. f : A

A
3. i :

4. 0<i
5. f{

i-1}

A
6. x : A

if i=

x else f(f{

i-1}(x)) fi

By:	SplitITE Concl

Generated subgoals:

1 7. i = 0
  x  A
Trivial

2 7. i  0
  f(f{i-1}(x))  A
5 steps

About:

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