Nuprl Basics - Proof: sfa doc isect subtype

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At: sfa doc isect subtype

A:Type, B:(A

Type), a:A. (

x:A. B(x))

B(a)

By:

UnivCD

Generated subgoal:

1 1. A : Type
2. B : AType
3. a : A
(x:A. B(x)) B(a)
3 steps

About:

IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html