cardinality

measure of the “number of elements of the set”, either as a cardinal number or as the equivalence class of sets admitting bijections to this set
rdfs:label
"cardinality"@en
skos:altLabel
"cardinality of a set"@en
"number of elements"@en
"set cardinality"@en
"size"@en
"size of a set"@en
schema:description
"measure of the “number of elements of the set”, either as a cardinal number or as the equivalence class of sets admitting bijections to this set"@en
schema:dateModified "2026-10-13T11:44:00+00:00"^^xsd:dateTime
schema:version 2556567775
wikibase:identifiers 18
wikibase:sitelinks 58
wikibase:statements 45
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p:P2396 wd:statement/Q4049983-3b7d4f25-43a0-f4cf-706e-102ba20c25ab
p:P2534 wd:statement/Q4049983-cfd78db5-4920-a594-909d-d846b8f145f0
p:P2561 wd:statement/Q4049983-16ba1d3a-49d8-517e-e716-0c7d487f26a3
wd:statement/Q4049983-198ce410-438d-c1a9-d84a-068c6fd41a26
wd:statement/Q4049983-4b241941-4ccf-9530-3ef2-1b5db7b4948e
p:P2579 wd:statement/Q4049983-111b4f3a-47db-95db-1b2b-a7c5dd7a1576
wd:statement/Q4049983-a99dcf61-4e00-ea57-3c48-1784c8496fc3
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p:P3827 wd:statement/Q4049983-E35135E2-B4DF-4C24-9BD9-9D37C6F38116
p:P3950 wd:statement/Q4049983-c33af6ba-4215-a9c3-96ce-8d88de628f4b
p:P527 wd:statement/Q4049983-4fb973ed-452a-48ce-dba9-b40bc45b09ee
wd:statement/Q4049983-7d779a16-4eff-84a5-21a7-83afc02d2333
p:P6366 wd:statement/Q4049983-50445062-2EAF-4F8F-BBE4-1677ABEE85B5
p:P646 wd:statement/Q4049983-CF516E1F-B55B-4C26-AA98-D96865BCAB96
p:P6564 wd:statement/Q4049983-7c31861d-4655-f5f2-3cfe-89679d8c22f4
p:P6706 wd:statement/Q4049983-88f8bd4f-4d56-c407-79b7-7447cc140691
p:P7033 wd:statement/Q4049983-6524B4C9-3A90-4C34-BC04-1127541DE821
p:P7293 wd:statement/Q4049983-b99a2510-45e9-a5cc-83c2-fce146c3dda4
p:P7305 wd:statement/Q4049983-E5D815D6-23F3-489A-9E1F-5B723FBA91DD
p:P7554 wd:statement/Q4049983-fdbbdf09-46fd-124f-2629-ae74f2c58647
p:P8408 wd:statement/Q4049983-66DB9E4F-C8F4-4A71-B473-56026AA3E142
p:P8814 wd:statement/Q4049983-C42F1FB6-230A-45CB-83D2-A0457E426D5A
p:P913 wd:statement/Q4049983-666038b0-41e1-561a-9b98-5fd1db675e2e
wd:statement/Q4049983-b1b9da6f-4b74-7b39-0f41-a4f597be130d
p:P9621 wd:statement/Q4049983-8142f7ad-4dcb-d201-efb9-a56a77035384
p:direct-normalized/P2263 <http://www.isocat.org/datcat/DC-1518>
p:direct-normalized/P6366 <https://makg.org/entity/39673530>
p:direct-normalized/P7033 <http://vocabulary.curriculum.edu.au/scot/11827>
p:direct-normalized/P8408 <http://kbpedia.org/kko/rc/SetOrCollectionTypeByCardinality>
p:direct-normalized/P8814 <http://wordnet-rdf.princeton.edu/rdf/id/13612789-n>
wdt:P10017 "cardinalita"
wdt:P1051 "7135"
wdt:P11514 "moshchnost-mnozhestva-a7670e"
wdt:P12457 bijection
wdt:P1343 ISO 80000-2:2019 Quantities and units — Part 2: Mathematics
wd:Q115325930
Armenian Soviet Encyclopedia, vol. 6
Great Soviet Encyclopedia (1926–1947)
wdt:P1568 universal class
wdt:P1687 group cardinality
set cardinality
wdt:P1889 countability
Mächtigkeit
Mocnost
wdt:P2263 "1518"
wdt:P2396 class of cardinal numbers
wdt:P2534 "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mi mathvariant="normal">C</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">r</mi><mi mathvariant="normal">d</mi></mrow></mrow><mo stretchy="false">(</mo><mi>E</mi><mo stretchy="false">)</mo><mo stretchy="false">=</mo><mi mathvariant="normal">&#x0023;</mi><mi>E</mi><mo stretchy="false">=</mo><mo stretchy="false">|</mo><mi>E</mi><mo stretchy="false">|</mo><mo stretchy="false">=</mo><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mover><mi>E</mi><mo>¯</mo></mover></mrow></mrow><mo stretchy="false">=</mo><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mover><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mover><mi>E</mi><mo>¯</mo></mover></mrow></mrow><mo>¯</mo></mover></mrow></mrow></mstyle></mrow></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML
wdt:P2561
"cardinality"@en
wdt:P2579 set theory
wdt:P279 class function
index number
cardinal function
wdt:P2812 "Cardinality"
wdt:P3365 "cardinalita"
wdt:P373 "Cardinality"
wdt:P3827 "cardinality"
wdt:P3950 <http://https://www.w3.org/2002/07/owl#minCardinality>
wdt:P527 multiplicity
uniqueness quantification
wdt:P6366 "39673530"
wdt:P646 "/m/01v51"
wdt:P6564 "cardinality"
wdt:P6706 "cardinalità"
wdt:P7033 "scot/11827"
wdt:P7293 "9810676884905606"
wdt:P7305 "3932354"
wdt:P7554 "Cardinality"
wdt:P8408 "SetOrCollectionTypeByCardinality"
wdt:P8814 "13612789-n"
wdt:P913 vertical bar brackets
number sign
wdt:P9621 "cardinalita"
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