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Oscar Plaisant
2024-12-25 22:30:24 +01:00
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élément neutre.md
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@@ -1,6 +1,6 @@
up::[[structure algébrique]]
title::"$e$ tel que $\forall x \in E, x*e = e*x = x$"
#maths/algèbre
#s/maths/algèbre
> [!definition]
> Un élément $e\in E$ est appelé _élément neutre_ de $E$ pour la loi $*$ ssi : $\forall a\in E, a*e=e*a=a$