Yes,as I said before to other of you the exp data type was also declared in the exercise (my fault not to say it), and look as this:
data Exp = LitI Int |LitB Bool |Add Exp Exp |And Exp Exp |If Exp Exp Exp -- View this message in context: http://www.nabble.com/foild-function-for-expressions-tf4932877.html#a14158061 Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe