membership

[haskell-request]

Original-Via: uk.ac.nsf; Thu, 28 Nov 91 00:35:19 GMT

   Personally, I think n+k patterns are a baroque left-over from views that
   someone thought would be nice to retain when views were abandonned. They
   should either be thrown out or generalised in a more regular way.

Let's throw them out.

-Paul