First order logic

First-order logic - collection of formal systems used in mathematics, philosophy, linguistics, and computer science. Article “First order logic” in Simple English Wikipedia has 22.4 points for quality (as of July 1, 2026). The article contains 3 references and 2 sections.

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

Since the creation of article “First order logic”, its content was written by 5 registered users of Simple English Wikipedia and edited by 1308 registered Wikipedia users in all languages.

The article is cited 10 times in Simple English Wikipedia and cited 5112 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Simple English): #5026 in January 2026
• Global: #1175 in August 2001

The highest popularity rank from 2008:

• Local (Simple English): #13377 in November 2015
• Global: #21948 in December 2014

There are 32 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, 2026 (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		49.6358
2	Romanian (ro) Logică de ordinul întâi		48.6529
3	Greek (el) Λογική πρώτου βαθμού		47.0482
4	English (en) First-order logic		46.126
5	Chinese (zh) 一阶逻辑		39.9406
6	Spanish (es) Lógica de primer orden		38.2295
7	Catalan (ca) Lògica de primer ordre		36.0928
8	Polish (pl) Rachunek predykatów pierwszego rzędu		31.2133
9	French (fr) Calcul des prédicats		30.4206
10	Basque (eu) Lehen mailako logika		28.0599

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		7 012 651
2	Spanish (es) Lógica de primer orden		1 095 389
3	Russian (ru) Логика первого порядка		764 902
4	French (fr) Calcul des prédicats		494 988
5	Portuguese (pt) Lógica de primeira ordem		360 176
6	Japanese (ja) 一階述語論理		349 693
7	Chinese (zh) 一阶逻辑		305 007
8	Polish (pl) Rachunek predykatów pierwszego rzędu		303 744
9	German (de) Prädikatenlogik erster Stufe		261 089
10	Italian (it) Teoria del primo ordine		137 354

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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 2026

#	Language	Popularity award	Relative popularity
1	English (en) First-order logic		15 141
2	Russian (ru) Логика первого порядка		1 433
3	Chinese (zh) 一阶逻辑		1 296
4	Japanese (ja) 一階述語論理		1 218
5	French (fr) Calcul des prédicats		1 064
6	Spanish (es) Lógica de primer orden		736
7	German (de) Prädikatenlogik erster Stufe		562
8	Polish (pl) Rachunek predykatów pierwszego rzędu		444
9	Portuguese (pt) Lógica de primeira ordem		345
10	Italian (it) Teoria del primo ordine		312

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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		503
2	French (fr) Calcul des prédicats		113
3	Russian (ru) Логика первого порядка		72
4	Spanish (es) Lógica de primer orden		62
5	German (de) Prädikatenlogik erster Stufe		52
6	Polish (pl) Rachunek predykatów pierwszego rzędu		51
7	Chinese (zh) 一阶逻辑		46
8	Hebrew (he) שפה מסדר ראשון		43
9	Japanese (ja) 一階述語論理		42
10	Dutch (nl) Predicatenlogica		41

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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 2026

#	Language	AI award	Relative AI
1	Spanish (es) Lógica de primer orden		2
2	German (de) Prädikatenlogik erster Stufe		1
3	English (en) First-order logic		1
4	Japanese (ja) 一階述語論理		1
5	Ukrainian (uk) Логіка першого порядку		1
6	Chinese (zh) 一阶逻辑		1
7	Arabic (ar) منطق الرتبة الأولى		0
8	Catalan (ca) Lògica de primer ordre		0
9	Czech (cs) Predikátová logika prvního řádu		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		1 554
2	French (fr) Calcul des prédicats		466
3	Portuguese (pt) Lógica de primeira ordem		323
4	Persian (fa) منطق مرتبه اول		272
5	Spanish (es) Lógica de primer orden		257
6	Ukrainian (uk) Логіка першого порядку		254
7	Japanese (ja) 一階述語論理		232
8	Chinese (zh) 一阶逻辑		232
9	Russian (ru) Логика первого порядка		226
10	Korean (ko) 1차 논리		201

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#	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
nl	Dutch Predicatenlogica
no	Norwegian Førsteordens logikk
pl	Polish Rachunek predykatów pierwszego rzędu
pt	Portuguese Lógica de primeira ordem
ro	Romanian Logică de ordinul întâi
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
th	Thai ตรรกศาสตร์อันดับหนึ่ง
uk	Ukrainian Логіка першого порядку
vi	Vietnamese Logic bậc nhất
zh	Chinese 一阶逻辑

Best Rank

Simple English: #13377 11.2015

Global: #21948 12.2014

Best Rank

Simple English: #5026 01.2026

Global: #1175 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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information