StdMaybeMonad.dcl « mart « week2 « fp2 - NWI-IBC029-30-Functioneel-Programmeren - Files related to NWI-IBC029 and NWI-IBC030 Functioneel Programmeren, spring 2015, Radboud University Nijmegen.

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definition module StdMaybeMonad

import StdMonad

:: Maybe a = Nothing | Just a

instance return	Maybe
instance >>=	Maybe
instance fail   Maybe