et A={1,2,3} and B={2,3,5,6,7} and the universal set is U = 1,2,3,4,5,6,7,8,9,10}. Vhich of the following is NOT true? OANB= {2,3} D |P(A)| = 32 %3D PĀUA= {1,2, 3, 4, 5} OAUC = {1,4, 8, 9, 10} O AUB= {1,2, 3, 5, 6, 7} DU – A= {4,5, 6, 7, 8, 9, 10}

Answer the following questions for the poset ({{1}, {2}, {4}, {1, 2}, {1, 4), (2, 4), (3, 4), (1, 3, 4), (2, 3, 4} }, =). Find the greatest lower bound of {(1, 3, 4), (2, 3, 4) ), if it exists. Multiple Choice The greatest lower bound of {{1, 3, 4), (2, 3, 4]} does not exist. {3,4} {4} {1,4}

Let S be the universal set, where: S = {1,2, 3, ..., 18, 19, 20} Let sets A and B be subsets of S, where: Set A {2, 4, 5, 9, 11, 12, 13, 14, 15, 16, 18, 19} Set B = {2, 3, 4, 7, 9, 10, 12, 13, 16, 18} %3D Find the following: LIST the elements in the set (An B): (An Bº) - { Enter the elements as a list, separated by commas. If the result is the empty set, enter DNE LIST the elements in the set (BnĀ): (Bn A°) = { Enter the elements as a list, separated by commas. If the result is the empty set, enter DNE