[Haskell-cafe] Haskell statefull computations and co-algebras?

[Vasili I. Galchin]

Hello,

      I am fairly conversant in category. In any case, I am re-reading
Bart Jacobs co-algebra tutorial
citeseer.ist.psu.edu/jacobs97tutorial.html and draft book
www.cs.ru.nl/B.Jacobs/CLG/JacobsCoalgebraIntro.pdf.

      Have others read these?

      What role do co-algebras play in Haskell stateful computations
(as opposed to or complementing monads)?

Kind regards,

Vasili