Who Cites mkid?
mkid	Def x_n == <x,n>
	Thm* x:Atom, n:. x_n  Id

Syntax:

x_n

has structure:

mkid(x; n)

About: IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html