[Haskell-cafe] number-parameterized types and heterogeneous lists

Harald ROTTER harald.rotter at sagem.com
Wed Jun 25 02:33:34 EDT 2008

Hello Anton,

thanks for your enlightening piece of code. "foldD" does exactly what I was
hoping for.
Now it becomes very obvious to me that the positions of the forall's in the
Digit definition are crucial.

Thanks a lot to Alfonso, Luke and Ryan as well. Haskell Cafe is a really
good place to learn new things :-)


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