Hi... cf Haskell Report appendix A: class Enum ... -- Minimal complete definition: -- toEnum, fromEnum Glasgow Haskell v4.02: KDBPrim.lhs:40: Warning: No explicit method nor default method for `enumFromThen' in an instance declaration for `Enum' Hmm... this seems to be a bug in the Haskell report too... the definition is missing from the example Prelude. Cc'd to Haskell list. --KW 8-) -- : Keith Wansbrough, MSc, BSc(Hons) (Auckland) ------------------------: : PhD Student, Computer Laboratory, University of Cambridge, England. : : (and recently of the University of Glasgow, Scotland. [><] ) : : Native of Antipodean Auckland, New Zealand: 174d47' E, 36d55' S. : : http://www.cl.cam.ac.uk/users/kw217/ mailto:[EMAIL PROTECTED] : :---------------------------------------------------------------------: