Soru 8:
The sets A = {4, 8, 11, 15} and B = {8, 15, 4 ,11} are the same. The empty set Ø is a subset of any set. The equality A = B is equivalent to two inclusions: A ? B and B ? A . The set of elements that are in either A or B or both is called the union of the sets A and B and is denoted by A ? B. x ? A ? B if and only if x ? A and x ? B . If A ? B = Ø then the sets A and B are called disjoint sets. Universal set is unique. Which of the statements above regarding to sets are correct?
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D) I, II, III, IV, V and VI