Definitions int 2 Sections StandardLIB Doc
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Some definitions of interest.
imaxDef imax(a;b) == if ab b else a fi
Thm* a,b:. imax(a;b 
natDef  == {i:| 0i }
Thm*   Type
leDef AB == B<A
Thm* i,j:. (ij Prop

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

Definitions int 2 Sections StandardLIB Doc