Who Cites zip?
zip	Def zip(as;bs) Def == Case of as Def == Canil  nil Def == Caa.as'  Case of bs; nil  nil ; b.bs'  [<a,b> / zip(as';bs')] Def (recursive)
	Thm* T1,T2:Type, as:T1 List, bs:T2 List. zip(as;bs)  (T1T2) List

Syntax:

zip(as;bs)

has structure:

zip(as; bs)

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