Free variables and bound variables

Free and bound variables - classification of variables in a logic formula based on whether or not they are inside the scope of a quantifier. Article "Free variables and bound variables" in English Wikipedia has 18 points for quality (as of July 1, 2025). The article contains 5 references and 8 sections. The article also contains quality flaw template, which reduce quality score.

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

Since the creation of article "Free variables and bound variables", its content was written by 123 registered users of English Wikipedia and edited by 227 registered Wikipedia users in all languages.

The article is cited 605 times in English Wikipedia and cited 1191 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #8306 in May 2004
• Global: #19726 in July 2003

The highest popularity rank from 2008:

• Local (English): #138792 in October 2014
• Global: #204859 in October 2014

There are 12 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	Estonian (et) Vaba muutuja ja seotud muutuja		19.1076
2	English (en) Free variables and bound variables		18.0433
3	Chinese (zh) 自由变量和约束变量		13.9161
4	Korean (ko) 자유 변수와 종속 변수		13.7825
5	Portuguese (pt) Variáveis livres e ligadas		12.031
6	Spanish (es) Variable libre y variable ligada		10.6768
7	Persian (fa) متغیر آزاد و متغیر مقید		9.2536
8	Arabic (ar) المتغير الحر والمتغير المقيد		8.851
9	Ukrainian (uk) Вільні і зв'язані змінні		8.3167
10	German (de) Freie Variable und gebundene Variable		7.4076

More...

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

The most popular language versions of the article "Free variables and bound variables" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Free variables and bound variables		957 786
2	German (de) Freie Variable und gebundene Variable		102 186
3	Japanese (ja) 自由変数と束縛変数		95 518
4	Chinese (zh) 自由变量和约束变量		48 146
5	Portuguese (pt) Variáveis livres e ligadas		45 123
6	Korean (ko) 자유 변수와 종속 변수		14 336
7	Spanish (es) Variable libre y variable ligada		9 171
8	Ukrainian (uk) Вільні і зв'язані змінні		7 878
9	Persian (fa) متغیر آزاد و متغیر مقید		5 024
10	Swedish (sv) Fria och bundna variabler		4 146

More...

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 "Free variables and bound variables" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Free variables and bound variables		3 143
2	Japanese (ja) 自由変数と束縛変数		461
3	German (de) Freie Variable und gebundene Variable		163
4	Chinese (zh) 自由变量和约束变量		152
5	Korean (ko) 자유 변수와 종속 변수		76
6	Spanish (es) Variable libre y variable ligada		70
7	Portuguese (pt) Variáveis livres e ligadas		52
8	Arabic (ar) المتغير الحر والمتغير المقيد		32
9	Persian (fa) متغیر آزاد و متغیر مقید		26
10	Estonian (et) Vaba muutuja ja seotud muutuja		23

More...

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

Language versions of the article "Free variables and bound variables" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Free variables and bound variables		123
2	German (de) Freie Variable und gebundene Variable		38
3	Japanese (ja) 自由変数と束縛変数		14
4	Spanish (es) Variable libre y variable ligada		13
5	Portuguese (pt) Variáveis livres e ligadas		9
6	Ukrainian (uk) Вільні і зв'язані змінні		7
7	Swedish (sv) Fria och bundna variabler		6
8	Persian (fa) متغیر آزاد و متغیر مقید		5
9	Chinese (zh) 自由变量和约束变量		5
10	Korean (ko) 자유 변수와 종속 변수		3

More...

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

Language versions of the article "Free variables and bound variables" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Estonian (et) Vaba muutuja ja seotud muutuja		2
2	Arabic (ar) المتغير الحر والمتغير المقيد		0
3	German (de) Freie Variable und gebundene Variable		0
4	English (en) Free variables and bound variables		0
5	Spanish (es) Variable libre y variable ligada		0
6	Persian (fa) متغیر آزاد و متغیر مقید		0
7	Japanese (ja) 自由変数と束縛変数		0
8	Korean (ko) 자유 변수와 종속 변수		0
9	Portuguese (pt) Variáveis livres e ligadas		0
10	Swedish (sv) Fria och bundna variabler		0

More...

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

Language versions of the article "Free variables and bound variables" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Free variables and bound variables		605
2	Chinese (zh) 自由变量和约束变量		114
3	Arabic (ar) المتغير الحر والمتغير المقيد		113
4	Persian (fa) متغیر آزاد و متغیر مقید		98
5	Japanese (ja) 自由変数と束縛変数		83
6	German (de) Freie Variable und gebundene Variable		50
7	Portuguese (pt) Variáveis livres e ligadas		43
8	Korean (ko) 자유 변수와 종속 변수		32
9	Ukrainian (uk) Вільні і зв'язані змінні		24
10	Estonian (et) Vaba muutuja ja seotud muutuja		15

More...

#	Language	Value
ar	Arabic المتغير الحر والمتغير المقيد
de	German Freie Variable und gebundene Variable
en	English Free variables and bound variables
es	Spanish Variable libre y variable ligada
et	Estonian Vaba muutuja ja seotud muutuja
fa	Persian متغیر آزاد و متغیر مقید
ja	Japanese 自由変数と束縛変数
ko	Korean 자유 변수와 종속 변수
pt	Portuguese Variáveis livres e ligadas
sv	Swedish Fria och bundna variabler
uk	Ukrainian Вільні і зв'язані змінні
zh	Chinese 自由变量和约束变量

Best Rank

English: #138792 10.2014

Global: #204859 10.2014

Best Rank

English: #8306 05.2004

Global: #19726 07.2003

On 12 August 2025 in multilingual Wikipedia, Internet users most often read articles on the following topics: Cristiano Ronaldo, Wednesday, Georgina Rodríguez, ChatGPT, Weapons, Jenna Ortega, deaths in 2025, Taylor Swift, Miguel Uribe Turbay, 2025–26 UEFA Champions League.

In English Wikipedia the most popular articles on that day were: Weapons (2025 film), Danielle Spencer (American actress), Cristiano Ronaldo, Deaths in 2025, Taylor Swift, Wednesday (TV series), Superman (2025 film), Georgina Rodríguez, Coolie (2025 film), The Fantastic Four: First Steps.

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