Nuprl - Proof: simple card cross assoc 1 1 1 1

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At: simple card cross assoc 1 1 1 1

1. A : Type
2. B : Type
3. C : Type
4. a1 : A
5. a2 : B

(

xyz.xyz/xy,z. xy/x,y. <x,y,z>)((

abc.abc/a,bc. bc/b,c. <<a,b>,c>)(<a1,a2>))

<a1,a2>

By:

Analyze-1

Generated subgoal:

1 5. a3 : B
6. a4 : C
  (xyz.xyz/xy,z. xy/x,y. <x,y,z>)
  ((abc.abc/a,bc. bc/b,c. <<a,b>,c>)(<a1,a3,a4>))
  =
  <a1,a3,a4>
2 steps

About:

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html