Greetings all. I was wondering if someone could give me some asistance on a few simple set theory proofs.(adsbygoogle = window.adsbygoogle || []).push({});

1) An(B\C)=(AnB)\(AnC)

2) A+(B+C)=(A+B)+C where + = symmetric difference

3) If A+B = A+C then B=C

and

4) An(B+C) = (AnB)+(AnC)

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# Help with some set theory questions

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