Nuprl - Proof: compose iter wf 1 2 1 2

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At: compose iter wf 1 2 1 2

1. A : Type
2. f : A

A
3. i :

4. 0<i
5. f{

i-1}

A
6. x : A
7. i

f(f{

i-1}(x))

By:

Analyze

Generated subgoals:

1 f AA
Trivial

2 f{i-1}(x) A
3 steps

About:

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