Question: 3. [3 points] Prove that for every three sets A, B and C' we have A ( B C) = ( A B ) U

3. [3 points] Prove that for every three sets A, B

and C' we have A\\ ( B\\ C) = ( A\\ B

3. [3 points] Prove that for every three sets A, B and C' we have A\\ ( B\\ C) = ( A\\ B ) U ( AnC)

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