Maximum and Minimum monoids
gershomb at gmail.com
Fri Dec 28 03:26:20 CET 2012
I agree that it's more correct to leave them as semigroups. The real
path should be to move the semigroup package into the platform for the
next release. (And, eventually, subsequent to that, to remove First and
Last from Data.Monoid entirely).
On 12/27/12 7:13 PM, Herbert Valerio Riedel wrote:
> Sjoerd Visscher <sjoerd at w3future.com> writes:
>> Can't you use Option (Max a) from the semigroups package?
> This was my first thought as well; IMHO, the elementary Minimum/Maximum
> operation forms a semigroup rather than a monoid.
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