Who Cites mapcons?
mapcons	Def mapcons(f;as) == Case of as; nil  nil ; a.as'  f(a,as').mapcons(f;as') Def (recursive)
	Thm* A,B:Type, f:(A(A List)B), l:A List. mapcons(f;l)  B List

Syntax:

mapcons(f;as)

has structure:

mapcons(f; as)

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