k is just a notation for {0..k}

	Who Cites int seg?
int_seg	Def  {i..j} == {k:| i  k < j }
	Thm*  m,n:. {m..n}  Type
lelt	Def  i  j < k == ij & j<k
le	Def  AB == B<A
	Thm*  i,j:. (ij)  Prop
not	Def  A == A  False
	Thm*  A:Prop. (A)  Prop

Syntax:

{i..j}

has structure:

int_seg(i; j)

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