Analysis of information sources in references of the Wikipedia article "冪等" in Chinese language version.
An element s of a magma such that ss = s is called idempotent.
Soit M un magma, noté multiplicativement. On nomme idempotent de M tout élément a de M tel que a2 = a.
An element s of a magma such that ss = s is called idempotent.
Soit M un magma, noté multiplicativement. On nomme idempotent de M tout élément a de M tel que a2 = a.
