Definitions DiscreteMath Sections DiscrMathExt Doc
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Some definitions of interest.
assertDef  b == if b True else False fi
Thm*  b:. b  Prop
int_segDef  {i..j} == {k:| i  k < j }
Thm*  m,n:. {m..n}  Type
natDef   == {i:| 0i }
Thm*    Type

About:
boolifthenelseassertintnatural_numberset
universememberpropfalsetrueall!abstraction
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

Definitions DiscreteMath Sections DiscrMathExt Doc