1. 2013-03-12 Re: [Haskell-cafe] newtype a Constraint? haskell-caf Max Bolingbroke 2. 2013-03-12 Re: [Haskell-cafe] newtype a Constraint? haskell-caf Roman Cheplyaka 3. 2013-03-12 Re: [Haskell-cafe] newtype a Constraint? haskell-caf Gábor_Lehel 4. 2013-03-12 [Haskell-cafe] newtype a Constraint? haskell-caf Roman Cheplyaka