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SOLVED: One of the following is false: a) The countable union of countable sets is countable. b) Any subset of a countable set is countable. c) Any subset of an uncountable set
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Chapter 0 Discrete Mathematics 1. A collection of objects called elements; no repetition or order. A = {a 1, …, a n } or {a 1, a 2, …} N = {0, 1, 2, …}{1, - ppt download
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Show that the union of two countable sets is countable. | Quizlet
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SOLVED: CHAPTER 11 Countability DEFINITION 11.1. A set A is countable if either A is finite or, in the latter case, A is countably infinite. DEFINITION 11.2. A set A is uncountable