Nuprl - Proof: partition type

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At: partition type

A,B:Type, P:(A

Prop).

(

x:A.

!y:B. P(x;y))

(A ~ (y:B

{x:A| P(x;y) }))

By:

Auto

Generated subgoal:

1 1. A : Type
2. B : Type
3. P : ABProp
4. x:A. !y:B. P(x;y)
A ~ (y:B{x:A| P(x;y) })
13 steps

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