[Haskell-cafe] Re: Numeric type classes

Henning Thielemann lemming at henning-thielemann.de
Wed Sep 13 09:04:28 EDT 2006

On Wed, 13 Sep 2006 ajb at spamcop.net wrote:

> G'day all.
> Quoting Henning Thielemann <lemming at henning-thielemann.de>:
> > ... which got the same name, too, namely 'foldl'.
> You mean foldr.  The place of foldl is a bit tricky, but in this case
> it requires that the monoid be Abelian.

A monoid operation is associative, isn't it?

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