Nuprl - Proof: ax choice

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At: ax choice

A,B:Type, Q:(A

Prop).

(

x:A.

y:B. Q(x,y))

(

f:(A

B).

x:A. Q(x,f(x)))

By:

UnivCD

Generated subgoal:

1 1. A : Type
2. B : Type
3. Q : ABProp
4. x:A. y:B. Q(x,y)
f:(AB). x:A. Q(x,f(x))
6 steps

About:

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