When is a function a fold or an unfold?

We give a necessary and sufficient condition for when a set-theoretic function can be written using the recursion operator fold, and a dual condition for the recursion operator unfold. The conditions are simple, practically useful, and generic in the underlying datatype. ©2001 Published by Elsevier...

Ausführliche Beschreibung

Bibliographische Detailangaben
Hauptverfasser: Gibbons, J, Hutton, G, Altenkirch, T
Format: Conference item
Veröffentlicht: 2001