Clopen verzameling

nl

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Clopen verzameling

Quality:

Clopen set - subset that is both open and closed. Article “Clopen verzameling” in Dutch Wikipedia has 2.7 points for quality (as of July 1, 2025). The article contains 0 references and 2 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Dutch) language version.

Since the creation of article “Clopen verzameling”, its content was written by 8 registered users of Dutch Wikipedia and edited by 207 registered Wikipedia users in all languages.

The article is cited 5 times in Dutch Wikipedia and cited 425 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Dutch): #27671 in July 2010
  • Global: #6056 in April 2004

The highest popularity rank from 2008:

  • Local (Dutch): #136998 in December 2008
  • Global: #330170 in October 2011

There are 16 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.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Clopen set
16.2648
2Japanese (ja)
開かつ閉集合
15.275
3Catalan (ca)
Conjunt clopen
13.9807
4Czech (cs)
Obojetná množina
13.542
5Chinese (zh)
闭开集
12.7974
6Arabic (ar)
طقم مغلق ومفتوح
12.652
7Polish (pl)
Zbiór otwarto-domknięty
10.5509
8German (de)
Abgeschlossene offene Menge
9.425
9French (fr)
Ouvert-fermé
9.3113
10Esperanto (eo)
Fermita-malfermita aro
5.059
More...

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

Most popular in all the time

The most popular language versions of the article "Clopen verzameling" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Clopen set
468 727
2German (de)
Abgeschlossene offene Menge
100 239
3French (fr)
Ouvert-fermé
45 124
4Japanese (ja)
開かつ閉集合
40 055
5Polish (pl)
Zbiór otwarto-domknięty
34 574
6Italian (it)
Insieme chiuso-aperto
32 444
7Chinese (zh)
闭开集
23 424
8Spanish (es)
Conjunto clopen
21 369
9Dutch (nl)
Clopen verzameling
5 480
10Esperanto (eo)
Fermita-malfermita aro
3 323
More...

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

Most popular in June 2025

The most popular language versions of the article "Clopen verzameling" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Clopen set
2 730
2German (de)
Abgeschlossene offene Menge
264
3Japanese (ja)
開かつ閉集合
211
4Spanish (es)
Conjunto clopen
157
5French (fr)
Ouvert-fermé
147
6Russian (ru)
Открыто-замкнутое множество
103
7Chinese (zh)
闭开集
101
8Italian (it)
Insieme chiuso-aperto
41
9Dutch (nl)
Clopen verzameling
37
10Polish (pl)
Zbiór otwarto-domknięty
33
More...

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

The highest AI

Language versions of the article "Clopen verzameling" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Clopen set
68
2German (de)
Abgeschlossene offene Menge
46
3Italian (it)
Insieme chiuso-aperto
20
4Polish (pl)
Zbiór otwarto-domknięty
14
5Spanish (es)
Conjunto clopen
9
6Esperanto (eo)
Fermita-malfermita aro
8
7Dutch (nl)
Clopen verzameling
8
8Chinese (zh)
闭开集
8
9Catalan (ca)
Conjunt clopen
6
10Japanese (ja)
開かつ閉集合
5
More...

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

The highest AI in June 2025

Language versions of the article "Clopen verzameling" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Clopen set
1
2Arabic (ar)
طقم مغلق ومفتوح
0
3Catalan (ca)
Conjunt clopen
0
4Czech (cs)
Obojetná množina
0
5German (de)
Abgeschlossene offene Menge
0
6Esperanto (eo)
Fermita-malfermita aro
0
7Spanish (es)
Conjunto clopen
0
8French (fr)
Ouvert-fermé
0
9Hungarian (hu)
Nyílt-zárt halmaz
0
10Italian (it)
Insieme chiuso-aperto
0
More...

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

The highest CI

Language versions of the article "Clopen verzameling" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Italian (it)
Insieme chiuso-aperto
137
2English (en)
Clopen set
80
3Chinese (zh)
闭开集
75
4Polish (pl)
Zbiór otwarto-domknięty
32
5Japanese (ja)
開かつ閉集合
23
6German (de)
Abgeschlossene offene Menge
19
7French (fr)
Ouvert-fermé
16
8Spanish (es)
Conjunto clopen
12
9Esperanto (eo)
Fermita-malfermita aro
9
10Catalan (ca)
Conjunt clopen
7
More...

Scores

Estimated value for Wikipedia:
Dutch:
Global:
Popularity in June 2025:
Dutch:
Global:
Popularity in all years:
Dutch:
Global:
Authors in June 2025:
Dutch:
Global:
Registered authors in all years:
Dutch:
Global:
Citations:
Dutch:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
طقم مغلق ومفتوح
caCatalan
Conjunt clopen
csCzech
Obojetná množina
deGerman
Abgeschlossene offene Menge
enEnglish
Clopen set
eoEsperanto
Fermita-malfermita aro
esSpanish
Conjunto clopen
frFrench
Ouvert-fermé
huHungarian
Nyílt-zárt halmaz
itItalian
Insieme chiuso-aperto
jaJapanese
開かつ閉集合
nlDutch
Clopen verzameling
plPolish
Zbiór otwarto-domknięty
ruRussian
Открыто-замкнутое множество
ukUkrainian
Відкрито-замкнута множина
zhChinese
闭开集

Popularity rank trends

Best Rank Dutch:
#136998
12.2008
Global:
#330170
10.2011

AI rank trends

Best Rank Dutch:
#27671
07.2010
Global:
#6056
04.2004

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Clopen set from Wikipedia articles about Closed set, Open set, Connected space, Axiom of determinacy and Zero-dimensional space. Whereas reading the article about Clopen set people most often go to Wikipedia articles on Open set, Door space, Closed set, Connected space and Blend word.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 15 February 2026

On 15 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Wuthering Heights, 2026 Winter Olympics, Epstein files, Ilia Malinin, Wuthering Heights, Ghislaine Maxwell, Lucas Pinheiro Braathen, 2026 Winter Olympics medal table, Valentine's Day.

In Dutch Wikipedia the most popular articles on that day were: Femke Kok, Jutta Leerdam, Bart Veldkamp, Anna Boersma, Pascale Naessens, Jens van 't Wout, Medaillespiegel van de Olympische Winterspelen 2026, Nij Beets, Estelle Cruijff, Ireen Wüst.

About WikiRank

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