Class (set theory)

Class - mathematical collection of sets that can be defined based on a property of its members (set theory). Article "Class (set theory)" in English Wikipedia has 19.4 points for quality (as of July 1, 2025). The article contains 4 references and 6 sections.

This article has the best quality in Tamil Wikipedia. However, this article is the most popular in English version.

Since the creation of article "Class (set theory)", its content was written by 97 registered users of English Wikipedia and edited by 532 registered Wikipedia users in all languages.

The article is cited 597 times in English Wikipedia and cited 2738 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #781 in December 2001
• Global: #828 in December 2001

The highest popularity rank from 2008:

• Local (English): #134668 in November 2014
• Global: #136829 in November 2014

There are 31 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Tamil (ta) தொகுதி (கணக் கோட்பாடு)		26.1769
2	German (de) Klasse (Mengenlehre)		24.5563
3	English (en) Class (set theory)		19.3928
4	Catalan (ca) Classe (matemàtiques)		19.2819
5	Indonesian (id) Kelas (teori himpunan)		16.6216
6	Polish (pl) Klasa (matematyka)		15.4047
7	French (fr) Classe (mathématiques)		15.2433
8	Vietnamese (vi) Lớp (lý thuyết tập hợp)		15.072
9	Croatian (hr) Klasa (matematika)		12.68
10	Hungarian (hu) Osztály (halmazelmélet)		8.8116

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Class (set theory)" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Class (set theory)		908 527
2	German (de) Klasse (Mengenlehre)		219 407
3	Spanish (es) Clase (teoría de conjuntos)		150 500
4	French (fr) Classe (mathématiques)		109 504
5	Japanese (ja) クラス (集合論)		100 817
6	Russian (ru) Класс (математика)		97 703
7	Polish (pl) Klasa (matematyka)		84 868
8	Chinese (zh) 类 (数学)		68 870
9	Italian (it) Classe (matematica)		57 230
10	Portuguese (pt) Classe (teoria dos conjuntos)		26 675

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Class (set theory)" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Class (set theory)		4 670
2	Japanese (ja) クラス (集合論)		581
3	German (de) Klasse (Mengenlehre)		533
4	Russian (ru) Класс (математика)		357
5	French (fr) Classe (mathématiques)		336
6	Chinese (zh) 类 (数学)		307
7	Polish (pl) Klasa (matematyka)		168
8	Korean (ko) 모임 (집합론)		157
9	Spanish (es) Clase (teoría de conjuntos)		144
10	Italian (it) Classe (matematica)		121

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Class (set theory)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Class (set theory)		97
2	German (de) Klasse (Mengenlehre)		85
3	French (fr) Classe (mathématiques)		53
4	Russian (ru) Класс (математика)		37
5	Italian (it) Classe (matematica)		35
6	Polish (pl) Klasa (matematyka)		31
7	Chinese (zh) 类 (数学)		27
8	Dutch (nl) Klasse (verzamelingenleer)		20
9	Hungarian (hu) Osztály (halmazelmélet)		19
10	Spanish (es) Clase (teoría de conjuntos)		13

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Class (set theory)" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Catalan (ca) Classe (matemàtiques)		0
2	Czech (cs) Třída (matematika)		0
3	Danish (da) Klasse (matematik)		0
4	German (de) Klasse (Mengenlehre)		0
5	English (en) Class (set theory)		0
6	Spanish (es) Clase (teoría de conjuntos)		0
7	Estonian (et) Klass (matemaatika)		0
8	Persian (fa) کلاس (نظریه مجموعه‌ها)		0
9	Finnish (fi) Luokka (matematiikka)		0
10	French (fr) Classe (mathématiques)		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Class (set theory)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Class (set theory)		597
2	Japanese (ja) クラス (集合論)		221
3	Portuguese (pt) Classe (teoria dos conjuntos)		221
4	Korean (ko) 모임 (집합론)		214
5	Ukrainian (uk) Клас (теорія множин)		209
6	Chinese (zh) 类 (数学)		206
7	German (de) Klasse (Mengenlehre)		127
8	Russian (ru) Класс (математика)		119
9	French (fr) Classe (mathématiques)		107
10	Polish (pl) Klasa (matematyka)		105

More...

#	Language	Value
ca	Catalan Classe (matemàtiques)
cs	Czech Třída (matematika)
da	Danish Klasse (matematik)
de	German Klasse (Mengenlehre)
en	English Class (set theory)
es	Spanish Clase (teoría de conjuntos)
et	Estonian Klass (matemaatika)
fa	Persian کلاس (نظریه مجموعه‌ها)
fi	Finnish Luokka (matematiikka)
fr	French Classe (mathématiques)
he	Hebrew מחלקה (תורת הקבוצות)
hr	Croatian Klasa (matematika)
hu	Hungarian Osztály (halmazelmélet)
hy	Armenian Դաս (բազմությունների տեսություն)
id	Indonesian Kelas (teori himpunan)
it	Italian Classe (matematica)
ja	Japanese クラス (集合論)
ko	Korean 모임 (집합론)
nl	Dutch Klasse (verzamelingenleer)
nn	Norwegian (Nynorsk) Klasse i matematikk
pl	Polish Klasa (matematyka)
pt	Portuguese Classe (teoria dos conjuntos)
ro	Romanian Clasă (matematică)
ru	Russian Класс (математика)
simple	Simple English Class (set theory)
sl	Slovenian Razred (teorija množic)
sv	Swedish Klass (matematik)
ta	Tamil தொகுதி (கணக் கோட்பாடு)
uk	Ukrainian Клас (теорія множин)
vi	Vietnamese Lớp (lý thuyết tập hợp)
zh	Chinese 类 (数学)

Best Rank

English: #134668 11.2014

Global: #136829 11.2014

Best Rank

English: #781 12.2001

Global: #828 12.2001

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information