Definitions mb nat Sections MarkB generic Doc
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Some definitions of interest.
int_segDef {i..j} == {k:| i  k < j }
Thm* m,n:. {m..n}  Type
notDef A == A  False
Thm* A:Prop. (A)  Prop
sumDef sum(f(x) | x < k) == primrec(k;0;x,n. n+f(x))
Thm* n:, f:(n). sum(f(x) | x < n)  
primrecDef primrec(n;b;c) == if n=0 b else c(n-1,primrec(n-1;b;c)) fi  (recursive)
Thm* T:Type, n:, b:T, c:(nTT). primrec(n;b;c)  T

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

Definitions mb nat Sections MarkB generic Doc