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

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At: sfa doc ntuple contains wf 1 1 2 1 1 2

1. A : Type
2. P : A

Prop
3. n :

n1:

. n1<n

(

X:(A^n1). (

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

Prop)
5. A
6. X2 : A^(n-1)
7. n

(

u in X2: A^(n-1). P(u))

Prop

By:	BackThru: Hyp:4

Generated subgoals:

None

About:

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