【題組】5. Let A, B, and C are three sets. Which is incorrect about the difference set? (A) (A-B)-C =A -
問題詳情
【題組】5. Let A, B, and C are three sets. Which is incorrect about the difference set? (A) (A-B)-C =A -(BUC)； (B)(A-B) -C = (A-C) - B； (C) (A-B) -C= A-(BnC)； (D)(A- B)-C=(A-C)-(B-C).