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4. Using only set identities (i.e., without Venn diagrams or membership tables), prove or disprove the equivalence of (A-c) U (C _ A) and (A

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4. Using only set identities (i.e., without Venn diagrams or membership tables), prove or disprove the equivalence of (A-c) U (C _ A) and (A UC) U (c n (A n(BUC)). [6 marks]

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