Definitions list 1 Sections StandardLIB Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
Some definitions of interest.
int_isegDef {i...j} == {k:ik & kj }
Thm* i,j:. {i...j Type
lengthDef ||as|| == Case of as; nil  0 ; a.as'  ||as'||+1  (recursive)
Thm* A:Type, l:A List. ||l||  
Thm* ||nil||  
nth_tlDef nth_tl(n;as) == if n0 as else nth_tl(n-1;tl(as)) fi  (recursive)
Thm* A:Type, as:A List, i:. nth_tl(i;as A List

About:
listnillist_ind
ifthenelseintnatural_numberaddsubtractset
recursive_def_noticeuniversememberandall
!abstraction
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

Definitions list 1 Sections StandardLIB Doc