Let A,B and C be sets. Prove that(adsbygoogle = window.adsbygoogle || []).push({});

(A-B)-C=(A-C)-(B-C).

Attempted solution:

Suppose [itex]x \in (A-B)-C[/itex]. Since [itex]x \in (A-B)-C[/itex] this means that [itex]x \in A[/itex] but [itex]x \notin B[/itex] and [itex]x \notin C[/itex].

I'm not sure how to show how these two statements are equal.

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# Prove that (A-B)-C=(A-C)-(B-C)

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