caar	caar
cadar	cadar
caddr	caddr
cadr	cadr
car	car
cdddr	cdddr
cddr	cddr
cdr	cdr
cdrs	cdrs
for.each	for.each
is.even	is.even
is.nil	is.nil
is.odd	is.odd
last	last
nil	nil
pair.fold.right	pair.fold.right
pairwise	pairwise
zip	zip
zip.c	zip.c
zip.list	zip.list
zip.with.names	zip.with.names
