First-order logic

First-order logic - collection of formal systems used in mathematics, philosophy, linguistics, and computer science. Article "First-order logic" in English Wikipedia has 45.9 points for quality (as of July 1, 2025). The article contains 44 references and 44 sections. The article also contains quality flaw template, which reduce quality score.

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

In June 2025 the article "First-order logic" was edited by 6 authors in English Wikipedia and written by 11 authors in all languages.

Since the creation of article "First-order logic", its content was written by 490 registered users of English Wikipedia and edited by 1231 registered Wikipedia users in all languages.

The article is cited 1509 times in English Wikipedia and cited 4854 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #989 in August 2001
• Global: #1096 in August 2001

The highest popularity rank from 2008:

• Local (English): #15151 in October 2014
• Global: #21565 in December 2014

There are 29 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	German (de) Prädikatenlogik erster Stufe		50.2729
2	Greek (el) Λογική πρώτου βαθμού		46.7277
3	English (en) First-order logic		45.8564
4	Chinese (zh) 一阶逻辑		39.9417
5	Spanish (es) Lógica de primer orden		38.8054
6	Catalan (ca) Lògica de primer ordre		36.039
7	Polish (pl) Rachunek predykatów pierwszego rzędu		30.6062
8	French (fr) Calcul des prédicats		30.4292
9	Portuguese (pt) Lógica de primeira ordem		28.4987
10	Basque (eu) Lehen mailako logika		28.1393

More...

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

The most popular language versions of the article "First-order logic" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) First-order logic		6 782 460
2	Spanish (es) Lógica de primer orden		1 078 709
3	Russian (ru) Логика первого порядка		726 230
4	French (fr) Calcul des prédicats		476 755
5	Portuguese (pt) Lógica de primeira ordem		354 888
6	Japanese (ja) 一階述語論理		333 652
7	Polish (pl) Rachunek predykatów pierwszego rzędu		296 979
8	Chinese (zh) 一阶逻辑		287 357
9	German (de) Prädikatenlogik erster Stufe		252 115
10	Italian (it) Teoria del primo ordine		132 243

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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 "First-order logic" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) First-order logic		21 713
2	Russian (ru) Логика первого порядка		2 380
3	Japanese (ja) 一階述語論理		1 705
4	Chinese (zh) 一阶逻辑		1 674
5	Spanish (es) Lógica de primer orden		1 442
6	German (de) Prädikatenlogik erster Stufe		1 297
7	French (fr) Calcul des prédicats		1 233
8	Portuguese (pt) Lógica de primeira ordem		555
9	Polish (pl) Rachunek predykatów pierwszego rzędu		538
10	Italian (it) Teoria del primo ordine		453

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

Language versions of the article "First-order logic" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) First-order logic		490
2	French (fr) Calcul des prédicats		110
3	Russian (ru) Логика первого порядка		71
4	Spanish (es) Lógica de primer orden		60
5	Polish (pl) Rachunek predykatów pierwszego rzędu		51
6	German (de) Prädikatenlogik erster Stufe		48
7	Chinese (zh) 一阶逻辑		46
8	Hebrew (he) שפה מסדר ראשון		43
9	Japanese (ja) 一階述語論理		40
10	Italian (it) Teoria del primo ordine		35

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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 "First-order logic" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) First-order logic		6
2	Japanese (ja) 一階述語論理		2
3	Persian (fa) منطق مرتبه اول		1
4	French (fr) Calcul des prédicats		1
5	Italian (it) Teoria del primo ordine		1
6	Arabic (ar) منطق الرتبة الأولى		0
7	Catalan (ca) Lògica de primer ordre		0
8	Czech (cs) Predikátová logika prvního řádu		0
9	German (de) Prädikatenlogik erster Stufe		0
10	Greek (el) Λογική πρώτου βαθμού		0

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

Language versions of the article "First-order logic" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) First-order logic		1 509
2	French (fr) Calcul des prédicats		458
3	Portuguese (pt) Lógica de primeira ordem		314
4	Persian (fa) منطق مرتبه اول		278
5	Spanish (es) Lógica de primer orden		262
6	Ukrainian (uk) Логіка першого порядку		246
7	Russian (ru) Логика первого порядка		229
8	Chinese (zh) 一阶逻辑		221
9	Japanese (ja) 一階述語論理		193
10	Korean (ko) 1차 논리		188

More...

#	Language	Value
ar	Arabic منطق الرتبة الأولى
ca	Catalan Lògica de primer ordre
cs	Czech Predikátová logika prvního řádu
de	German Prädikatenlogik erster Stufe
el	Greek Λογική πρώτου βαθμού
en	English First-order logic
eo	Esperanto Predikatkalkulo
es	Spanish Lógica de primer orden
eu	Basque Lehen mailako logika
fa	Persian منطق مرتبه اول
fr	French Calcul des prédicats
he	Hebrew שפה מסדר ראשון
hu	Hungarian Elsőrendű logika
hy	Armenian Պրեդիկատների տրամաբանություն
id	Indonesian Logika predikat tingkat pertama
it	Italian Teoria del primo ordine
ja	Japanese 一階述語論理
ko	Korean 1차 논리
no	Norwegian Førsteordens logikk
pl	Polish Rachunek predykatów pierwszego rzędu
pt	Portuguese Lógica de primeira ordem
ru	Russian Логика первого порядка
sh	Serbo-Croatian Logika prvog reda
simple	Simple English First order logic
sr	Serbian Логика првог реда
sv	Swedish Första ordningens logik
uk	Ukrainian Логіка першого порядку
vi	Vietnamese Logic bậc nhất
zh	Chinese 一阶逻辑

Best Rank

English: #15151 10.2014

Global: #21565 12.2014

Best Rank

English: #989 08.2001

Global: #1096 08.2001

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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