cours/relation transitive.md
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---
alias: ["transitivité", "transitive"]
---
up::[[relation]]
title:: "$x\mathscr Ry \vee y\mathscr Rz \implies x\mathscr Rz$"
#maths/algèbre
----
> [!definition] Relation transitive
> Soit $\mathscr R$ une [[relation]] sur $E$
> $\mathscr R$ est _transitive_ ssi :
> $\forall (x,y,z)\in E^3, \quad x\mathscr Ry \vee y\mathscr Rz \implies x\mathscr Rz$
^definition