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@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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