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Unformatted text preview: • the set of all integers • all ﬁnite subsets of integers • all subsets of integers • the set of all reals • all ﬁnite subsets of reals • all subsets of reals • the set of all ﬁnite length strings • all ﬁnite subsets of the set of all ﬁnite length strings • all subsets of the set of all ﬁnite length strings • all computer programs 1 • functions mapping integers to the set { , 1 } • fuctions mapping integers to integers 5 Countable Concept In a concise way, write an explaination of countably inﬁnite a high school student could understand. And, give an example of a set that is not countably inﬁnite or ﬁnite and explain why. 6 Countable Triplets Sketch a algorithm to list all triples of a countably inﬁnite set. 2...
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This note was uploaded on 11/11/2011 for the course CS 2800 at Cornell.
 '07
 SELMAN

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