Question: D. (21 Points) Let A, B and C be 3 sets. a. Find a counterexample to the statement A(BC)=(AB)C i. b. Without using Venn diagram,

D. (21 Points) Let A, B and C be 3 sets.

D. (21 Points) Let A, B and C be 3 sets. a. Find a counterexample to the statement A(BC)=(AB)C i. b. Without using Venn diagram, prove that A(BC)=(AB)(AC) i. c. Without using Venn diagram, prove that A\(B\C)=(A\B)(A\Cc)

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