Mathematics, 07.04.2020 22:59, Carrchris021

If it is possible to label each element of an infinite set S with a finite string of keyboard characters, from a finite list characters, where no two elements of S have the same label, then S is a countably infinite set. Use the above statement and prove that the set of rational numbers is countable.

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If it is possible to label each element of an infinite set S with a finite string of keyboard charac...