Sub:
멱등함수,idempotent_function
멱등사상,idempotent_morphism - 사상,morphism
멱등법칙,idempotent_law ? - 법칙,law
멱등함수,idempotent_function
멱등사상,idempotent_morphism - 사상,morphism
idempotent morphism
멱등원,idempotent_element - 원소,element멱등법칙,idempotent_law ? - 법칙,law