Which sets are countable?
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In mathematics, a countable set is a set with the same cardinality (number of elements) as some subset of the set of natural numbers. A countable set is either a finite set or a countably infinite set. ... Some authors use countable set to mean countably infinite alone.
2023-04-22 13:05:05
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Ethan Roberts
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In mathematics, a countable set is a set with the same cardinality (number of elements) as some subset of the set of natural numbers. A countable set is either a finite set or a countably infinite set. ... Some authors use countable set to mean countably infinite alone.