Nuprl - Proof: set functionality wrt one one corr n pred

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At: set functionality wrt one one corr n pred

A:Type, B,B':(A

Prop).

(

x:A.

B(x)

B'(x))

({x:A| B(x) } ~ {x:A| B'(x) })

By:	Auto THEN Rewrite by Thm* {x:A\| B(x) } ~ {x:A\| B(x) } THEN BackThru: Thm* (x:A. B(x) B'(x)) ({x:A\| B(x) } ~ {x:A\| B'(x) })

Generated subgoals:

None

About:

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