(3steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
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At: one one corr 2 weakening wrt 1

1. A : Type
2. B : Type
3. A = B
  f:(AB), g:(BA). InvFuns(A;B;f;g)


By: SubstA = B  Type THEN Witness: Id | Id


Generated subgoal:

1   InvFuns(A;A;Id;Id)
1 step

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

(3steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc