Double counting (proof technique)

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Double counting (proof technique)

Quality:

Double counting - technique for proving that two expressions are equal by showing that they both count the size of the same set. Article “Double counting (proof technique)” in English Wikipedia has 31.8 points for quality (as of July 1, 2025). The article contains 8 references and 10 sections.

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

Since the creation of article “Double counting (proof technique)”, its content was written by 50 registered users of English Wikipedia and edited by 110 registered Wikipedia users in all languages.

The article is cited 27 times in English Wikipedia and cited 81 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #1946 in August 2003
  • Global: #6278 in August 2003

The highest popularity rank from 2008:

  • Local (English): #455865 in February 2010
  • Global: #710120 in February 2010

There are 10 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)
Double counting (proof technique)
31.7725
2French (fr)
Preuve par double dénombrement
21.7048
3Galician (gl)
Dupla contaxe
18.3975
4Hungarian (hu)
Kettős leszámlálás
13.4242
5Russian (ru)
Двойной подсчёт
11.8114
6Persian (fa)
شمارش مضاعف
9.5649
7Vietnamese (vi)
Đếm bằng hai cách
8.5993
8Chinese (zh)
算兩次
7.4446
9German (de)
Doppeltes Abzählen
6.1088
10Italian (it)
Dimostrazione mediante doppio conteggio
1.0355
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 "Double counting (proof technique)" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Double counting (proof technique)
210 634
2German (de)
Doppeltes Abzählen
21 443
3French (fr)
Preuve par double dénombrement
19 134
4Chinese (zh)
算兩次
11 791
5Persian (fa)
شمارش مضاعف
6 667
6Italian (it)
Dimostrazione mediante doppio conteggio
4 271
7Hungarian (hu)
Kettős leszámlálás
1 295
8Vietnamese (vi)
Đếm bằng hai cách
995
9Russian (ru)
Двойной подсчёт
574
10Galician (gl)
Dupla contaxe
83
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 "Double counting (proof technique)" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Double counting (proof technique)
851
2French (fr)
Preuve par double dénombrement
68
3Chinese (zh)
算兩次
61
4German (de)
Doppeltes Abzählen
53
5Russian (ru)
Двойной подсчёт
39
6Vietnamese (vi)
Đếm bằng hai cách
18
7Hungarian (hu)
Kettős leszámlálás
17
8Persian (fa)
شمارش مضاعف
14
9Italian (it)
Dimostrazione mediante doppio conteggio
12
10Galician (gl)
Dupla contaxe
4
More...

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

The highest AI

Language versions of the article "Double counting (proof technique)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Double counting (proof technique)
50
2French (fr)
Preuve par double dénombrement
21
3Persian (fa)
شمارش مضاعف
11
4Italian (it)
Dimostrazione mediante doppio conteggio
8
5Chinese (zh)
算兩次
5
6German (de)
Doppeltes Abzählen
4
7Hungarian (hu)
Kettős leszámlálás
3
8Russian (ru)
Двойной подсчёт
3
9Vietnamese (vi)
Đếm bằng hai cách
3
10Galician (gl)
Dupla contaxe
2
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 "Double counting (proof technique)" with the highest AI in June 2025
#LanguageAI awardRelative AI
1German (de)
Doppeltes Abzählen
0
2English (en)
Double counting (proof technique)
0
3Persian (fa)
شمارش مضاعف
0
4French (fr)
Preuve par double dénombrement
0
5Galician (gl)
Dupla contaxe
0
6Hungarian (hu)
Kettős leszámlálás
0
7Italian (it)
Dimostrazione mediante doppio conteggio
0
8Russian (ru)
Двойной подсчёт
0
9Vietnamese (vi)
Đếm bằng hai cách
0
10Chinese (zh)
算兩次
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 "Double counting (proof technique)" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Double counting (proof technique)
27
2French (fr)
Preuve par double dénombrement
22
3German (de)
Doppeltes Abzählen
8
4Persian (fa)
شمارش مضاعف
6
5Russian (ru)
Двойной подсчёт
6
6Hungarian (hu)
Kettős leszámlálás
4
7Chinese (zh)
算兩次
4
8Italian (it)
Dimostrazione mediante doppio conteggio
3
9Galician (gl)
Dupla contaxe
1
10Vietnamese (vi)
Đếm bằng hai cách
0
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
deGerman
Doppeltes Abzählen
enEnglish
Double counting (proof technique)
faPersian
شمارش مضاعف
frFrench
Preuve par double dénombrement
glGalician
Dupla contaxe
huHungarian
Kettős leszámlálás
itItalian
Dimostrazione mediante doppio conteggio
ruRussian
Двойной подсчёт
viVietnamese
Đếm bằng hai cách
zhChinese
算兩次

Popularity rank trends

Best Rank English:
#455865
02.2010
Global:
#710120
02.2010

AI rank trends

Best Rank English:
#1946
08.2003
Global:
#6278
08.2003

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Double counting from Wikipedia articles about Cayleys formula, Vandermondes identity, Combinatorial proof, Combinatorial principle and Fermats little theorem. Whereas reading the article about Double counting people most often go to Wikipedia articles on Vandermondes identity, Handshaking lemma, Bijective proof, Combinatorial proof and Tree.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 16 March 2026

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In English Wikipedia the most popular articles on that day were: 98th Academy Awards, Michael B. Jordan, Paul Thomas Anderson, Jessie Buckley, Sinners (2025 film), Amy Madigan, Autumn Durald Arkapaw, Maya Rudolph, Sean Penn, Academy Awards.

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