(4steps total) PfGloss PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc
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At: fun with inv2 is inj
  A,B:Type, f:(AB), g:(BA). InvFuns(A;B;f;g)  Inj(A; B; f)
By: Def of InvFuns(A;B;f;g)

Generated subgoal:

1 1. A : Type
2. B : Type
3. f : AB
4. g : BA
5. x:A. g(f(x)) = x
6. y:B. f(g(y)) = y
  Inj(A; B; f)
3 steps

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

(4steps total) PfGloss PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc