adamc@794: datatype t = datatype Basis.list
adamc@794: 
adamc@794: val show : a ::: Type -> show a -> show (list a)
adamc@794: 
adamc@794: val rev : a ::: Type -> t a -> t a
adamc@794: 
adamc@794: val mp : a ::: Type -> b ::: Type -> (a -> b) -> t a -> t b
adamc@794: