Nuprl - Proof: inv pair inv 1 2 1

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At: inv pair inv 1 2 1

1. A : Type
2. B : Type
3. (

fg.fg/f,g. <f,g,(

x.*),(

y.*)>)

(A ~ B)
4. f : A

B
5. g : B

A
6. InvFuns(A;B;f;g)

<f,g>

By:	Analyze THEN Reduce Concl

Generated subgoal:

1 InvFuns(A;B;f;g)
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