A bug with Sum (as in Monoid)

[Dannyu NDos]

Omg, addition is not even associative? The zeros truly ruined everything.

2019년 11월 7일 (목) 06:58, Brent Yorgey <byorgey at gmail.com>님이 작성:

> How is that worse than the fact that addition is already not associative
> for floating point types?  At least +0 is really the identity up to (==).
>
> On Wed, Nov 6, 2019, 3:49 PM Dannyu NDos <ndospark320 at gmail.com> wrote:
>
>> Sum has bug with floating points. Current definition states +0 as the
>> identity element, while the actual identity is -0 since +0 + -0 = +0.
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