Mengentheorie/Einfaches Mengengesetz/1/Aufgabe

Es seien ${}A,\,B$ und ${}C$ Mengen. Beweise die Identität

{}A\setminus {\left(B\cap C\right)}={\left(A\setminus B\right)}\cup {\left(A\setminus C\right)}\,.

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