I'm making a general purpose N-ary tree and im coming up with "unexpected '=' on line 17" as an error. I have spent a fair while trying to work out why this isn't accepting the case that an Empty gtree returns false for any member search. i realise this is probably a very trivial error but any help would be appreciated: module GTrees where data Gtree = Empty | Leaf String | Node String [Gtree] deriving (Show) --Tests if a given string is a member of the tree gtreeMember :: (Ord a) => a -> Gtree a -> Bool gtreeMember y Empty = False -- line 17 gtreeMember y (Leaf x) = (x==y) gtreeMember y (Node x tree) |x==y = True |otherwise gtreeMember tree This is the code up to the point of the error with the error line highlighted