Let A = {7m +1 : m € Z} and B = {14n – 6 : n € Z} be subsets of a universal set U. Justify why A ¢ B by providing a counterexample with a brief explanation. For part b., no justification is needed. i. List 2 different elements of the set ANB (one in each box): and

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Set Theory

Every field in the present world involves a set. The theory of sets was developed by German mathematician Georg Cantor while working on the “problems of trigonometric series”.