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EntityQ1128796· pop 35· linked from 550 articles

uncountable set

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set with cardinal number larger than that of the set of all natural numbers

Wikidata facts

Subclass of
infinite set
Show 4 more facts
studied by
measure theory
opposite of
countable set
different from
non-measurable set
Sources (3)

via Wikidata · CC0

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Encyclopedic overview

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In mathematics, an uncountable set, informally, is an infinite set that contains too many elements to be countable. The uncountability of a set is closely related to its cardinal number: a set is uncountable if its cardinal number is larger than aleph-null, the cardinality of the natural numbers.

Excerpted from Wikipedia’s “uncountable set” article, available under the CC BY-SA 4.0 licence.