Definitions DiscreteMath Sections DiscrMathExt Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
Some definitions of interest.
natDef   == {i:| 0i }
Thm*    Type
leDef  AB == B<A
Thm*  i,j:. (ij)  Prop
nequalDef  a  b  T == a = b  T
Thm*  A:Type, x,y:A. (x  y)  Prop
notDef  A == A  False
Thm*  A:Prop. (A)  Prop
surjectDef  Surj(A; B; f) == b:B. a:A. f(a) = b
Thm*  A,B:Type, f:(AB). Surj(A; B; f)  Prop

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

Definitions DiscreteMath Sections DiscrMathExt Doc