[Haskell-cafe] Monoids [Stacking monads]

Andrew Coppin andrewcoppin at btinternet.com
Fri Oct 3 15:59:45 EDT 2008

Ryan Ingram wrote:
> Newtypes is the general (& sadly unsatisfactory) answer:

Oh dear. Well that _is_ pretty unsatisfactory...

Given the constraints of the Haskell type system, could we do better in 

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