[Haskell-cafe] Non-traversable foldables

Martijn van Steenbergen martijn at van.steenbergen.nl
Fri Oct 9 10:41:05 EDT 2009

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Hallo café,

Can anyone think of datatypes that are Foldable but not Traversable?

If not, what is the purpose of having a separate Foldable class?

Thanks,

Martijn.

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