As of 2022-03-07, the Wikidata property identity element (P8864) is used on 6 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P2812 MathWorld identifier 6
 0.0014
P646 Freebase ID 6
 0.0000
P6366 Microsoft Academic ID 5
 0.0000
P1343 described by source 5
 0.0000
P279 subclass of 5
 0.0000
P373 Commons category 5
 0.0000
P31 instance of 5
 0.0000
P8855 IEV number 4
 0.0019
P2534 defining formula 4
 0.0008
P3417 Quora topic ID 4
 0.0000
P5610 OpenMath ID 3
 0.0556
P913 notation 3
 0.0176
P7235 in defining formula 3
 0.0028
P7033 Australian Educational Vocabulary ID 3
 0.0004
P1552 has quality 3
 0.0001
P1417 Encyclopædia Britannica Online ID 3
 0.0000
P8189 National Library of Israel J9U ID 3
 0.0000
P910 topic's main category 3
 0.0000
P244 Library of Congress authority ID 3
 0.0000
P1256 Iconclass notation 2
 0.0005
P1245 OmegaWiki Defined Meaning 2
 0.0002
P508 BNCF Thesaurus ID 2
 0.0001
P461 opposite of 2
 0.0001
P8408 KBpedia ID 2
 0.0001
P2924 Great Russian Encyclopedia Online ID 2
 0.0000
P4342 Store norske leksikon ID 2
 0.0000
P10283 OpenAlex ID 2
 0.0000
P268 Bibliothèque nationale de France ID 2
 0.0000
P1889 different from 2
 0.0000
P227 GND ID 2
 0.0000
P18 image 2
 0.0000
P8866 has operator 1
 0.0909
P6564 Brilliant Wiki ID 1
 0.0033
P5106 Dictionary of Algorithms and Data Structures ID 1
 0.0018
P7832 Basque Vikidia ID 1
 0.0012
P7827 Spanish Vikidia ID 1
 0.0006
P9100 GitHub topic 1
 0.0004
P1482 Stack Exchange tag 1
 0.0003
P4746 Elhuyar ZTH ID 1
 0.0002
P1299 depicted by 1
 0.0001
P8814 WordNet 3.1 Synset ID 1
 0.0001
P7818 French Vikidia ID 1
 0.0000
P3365 Treccani ID 1
 0.0000
P3827 JSTOR topic ID 1
 0.0000
P8313 Den Store Danske ID 1
 0.0000
P1296 Gran Enciclopèdia Catalana ID 1
 0.0000
P349 National Diet Library ID 1
 0.0000
P527 has part or parts 1
 0.0000

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P8866 has operator 1
 0.0909
P5610 OpenMath ID 3
 0.0556
P913 notation 3
 0.0176
P6564 Brilliant Wiki ID 1
 0.0033
P7235 in defining formula 3
 0.0028
P8855 IEV number 4
 0.0019
P5106 Dictionary of Algorithms and Data Structures ID 1
 0.0018
P2812 MathWorld identifier 6
 0.0014
P7832 Basque Vikidia ID 1
 0.0012
P2534 defining formula 4
 0.0008
P7827 Spanish Vikidia ID 1
 0.0006
P1256 Iconclass notation 2
 0.0005
P9100 GitHub topic 1
 0.0004
P7033 Australian Educational Vocabulary ID 3
 0.0004
P1482 Stack Exchange tag 1
 0.0003
P1245 OmegaWiki Defined Meaning 2
 0.0002
P4746 Elhuyar ZTH ID 1
 0.0002
P508 BNCF Thesaurus ID 2
 0.0001
P1299 depicted by 1
 0.0001
P461 opposite of 2
 0.0001
P8814 WordNet 3.1 Synset ID 1
 0.0001
P1552 has quality 3
 0.0001
P8408 KBpedia ID 2
 0.0001
P7818 French Vikidia ID 1
 0.0000
P3365 Treccani ID 1
 0.0000
P2924 Great Russian Encyclopedia Online ID 2
 0.0000
P3827 JSTOR topic ID 1
 0.0000
P8313 Den Store Danske ID 1
 0.0000
P4342 Store norske leksikon ID 2
 0.0000
P3417 Quora topic ID 4
 0.0000
P10283 OpenAlex ID 2
 0.0000
P6366 Microsoft Academic ID 5
 0.0000
P1417 Encyclopædia Britannica Online ID 3
 0.0000
P8189 National Library of Israel J9U ID 3
 0.0000
P1296 Gran Enciclopèdia Catalana ID 1
 0.0000
P1343 described by source 5
 0.0000
P349 National Diet Library ID 1
 0.0000
P910 topic's main category 3
 0.0000
P268 Bibliothèque nationale de France ID 2
 0.0000
P1889 different from 2
 0.0000
P244 Library of Congress authority ID 3
 0.0000
P279 subclass of 5
 0.0000
P227 GND ID 2
 0.0000
P527 has part or parts 1
 0.0000
P373 Commons category 5
 0.0000
P646 Freebase ID 6
 0.0000
P18 image 2
 0.0000
P31 instance of 5
 0.0000