Add abelian monoid algebraic structure at the bottom of the Coquelicot hierarchy.
As a consequence, sum_n_m/sum_n are now available on abelian monoids.
[A venir] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
[Coming soon] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
As a consequence, sum_n_m/sum_n are now available on abelian monoids.