+A **countable set** is a collection whose elements can be matched one-to-one with the [Natural Numbers](/wiki/natural_numbers) or a finite subset thereof. This means its size is either finite or "countably infinite," allowing each element to be reached in a sequence, much like the [Integers](/wiki/integers).
+## See also
+- [Uncountable Set](/wiki/uncountable_set)
+- [Cardinality](/wiki/cardinality)
+- [Set Theory](/wiki/set_theory)
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