1. 2011-12-31 Re: [Haskell-beginners] Representing a Set using a bo haskell-b Brent Yorgey 2. 2011-12-30 Re: [Haskell-beginners] Representing a Set using a bo haskell-b Felipe Almeida Les 3. 2011-12-30 [Haskell-beginners] Representing a Set using a boolea haskell-b Robert Weisser