countably infinite set

set with the same cardinality as the set of natural numbers

Wikidata entity: Q185478

Wikimedia Commons category is Countable sets

P2820 cardinality of this set ... Q1445491 (aleph null) aleph null
P373 Commons category String Countable sets ???
P1889 different from ... Q66707394 (countable set) countable set
P61 discoverer or inventor ... Q76420 (Georg Cantor) Georg Cantor
P5136 less than ... Q1128796 (uncountable set) uncountable set
P6104 maintained by WikiProject ... Q8487137 (WikiProject Mathematics) WikiProject Mathematics
P2579 studied by ... Q12482 (set theory) set theory
P2579 studied by ... Q121416 (discrete mathematics) discrete mathematics
P279 subclass of ... Q66707394 (countable set) countable set
P279 subclass of ... Q205140 (infinite set) infinite set
External Ids
P1417Encyclopædia Britannica Online IDtopic/countable-set
P646Freebase ID/m/01t8j
P12385Gran Enciclopèdia Catalana IDconjunt-numerable
P1296Gran Enciclopèdia Catalana ID (former scheme)0267908
P8313Lex IDnumerabel_mængde
P2812MathWorld IDCountablyInfinite
P6366Microsoft Academic ID (discontinued)110729354
P7305Online PWN Encyclopedia ID3963442
P10283OpenAlex IDC110729354
P6781ProofWiki IDDefinition:Countably_Infinite
P3365Treccani IDinsieme-numerabile

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