Nuprl Basics - Proof: sfa doc ntuple contains wf 1 1 2 2

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At: sfa doc ntuple contains wf 1 1 2 2

1. A : Type
2. P : A

Prop
3. n :

4.

n1:

. n1<n

(

X:(A^n1). (

u in X: A^n1. P(u))

Prop)
5. A^n
6. n

2

(A^n) = A

(A^(n-1))

By:	BackThru: Thm* n:. n2 (A^n) = A(A^(n-1))

Generated subgoals:

None

About:

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

(12steps total) PrintForm Definitions Lemmas NuprlPrimitives Sections NuprlLIB Doc