Definitions num thy 1 Sections StandardLIB Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
Some definitions of interest.
assocedDef a ~ b == a | b & b | a
Thm* a,b:. (a ~ b Prop
iffDef P  Q == (P  Q) & (P  Q)
Thm* A,B:Prop. (A  B Prop
int_nzeroDef  == {i:i  0 }
Thm*   Type

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

Definitions num thy 1 Sections StandardLIB Doc