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4. Let R(A,B,C) and S(A,B,C) be two relations. Which of the following is true if R, S, and all operations are interpreted to be sets

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4. Let R(A,B,C) and S(A,B,C) be two relations. Which of the following is true if R, S, and all operations are interpreted to be sets and set- operations, but not necessarily true if R, S and all operations are bags and bag-operations? a) ((R

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