Idempotent
= Idempotent
{wiki=Idempotent_(ring_theory)}
= Idempotent element
{synonym}
An element $e$ is idempotent when $e^2=e$.
= Idempotent
{wiki=Idempotent_(ring_theory)}
= Idempotent element
{synonym}
An element $e$ is idempotent when $e^2=e$.