On 29 March 2012 04:34, Richard O'Keefe <o...@cs.otago.ac.nz> wrote: > u f (PS x) = PS $ map f x > b f (PS x) (PS y) = PS $ zipWith f x y > to_ps x = PS (x : repeat 0) >
Also see: http://hackage.haskell.org/package/newtype -- Ozgur Akgun
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