Natural deduction

Natural deduction - kind of proof calculus. Article “Natural deduction” in English Wikipedia has 58 points for quality (as of July 1, 2025). The article contains 79 references and 29 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 6.44 points.

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

In June 2025 the article “Natural deduction” was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article “Natural deduction”, its content was written by 114 registered users of English Wikipedia and edited by 363 registered Wikipedia users in all languages.

The article is cited 409 times in English Wikipedia and cited 1169 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #5936 in May 2002
• Global: #7379 in May 2002

The highest popularity rank from 2008:

• Local (English): #167280 in October 2008
• Global: #157397 in December 2008

There are 17 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	English (en) Natural deduction		57.9727
2	Chinese (zh) 自然演绎		41.5532
3	French (fr) Déduction naturelle		27.5903
4	German (de) Systeme natürlichen Schließens		25.4243
5	Persian (fa) استنتاج طبیعی		25.3918
6	Japanese (ja) 自然演繹		18.4846
7	Spanish (es) Deducción natural		16.8712
8	Portuguese (pt) Dedução natural		15.4147
9	Simple English (simple) Natural deduction		12.2234
10	Korean (ko) 자연 연역		11.3406

More...

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

The most popular language versions of the article "Natural deduction" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Natural deduction		724 935
2	Japanese (ja) 自然演繹		136 716
3	German (de) Systeme natürlichen Schließens		126 377
4	Spanish (es) Deducción natural		121 040
5	French (fr) Déduction naturelle		115 885
6	Portuguese (pt) Dedução natural		78 025
7	Chinese (zh) 自然演绎		55 600
8	Polish (pl) Dedukcja naturalna		51 403
9	Italian (it) Deduzione naturale		28 136
10	Dutch (nl) Natuurlijke deductie		26 570

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 "Natural deduction" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Natural deduction		3 747
2	Japanese (ja) 自然演繹		538
3	French (fr) Déduction naturelle		334
4	German (de) Systeme natürlichen Schließens		219
5	Spanish (es) Deducción natural		215
6	Chinese (zh) 自然演绎		169
7	Russian (ru) Натуральный вывод		129
8	Italian (it) Deduzione naturale		114
9	Simple English (simple) Natural deduction		112
10	Korean (ko) 자연 연역		101

More...

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

Language versions of the article "Natural deduction" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Natural deduction		114
2	German (de) Systeme natürlichen Schließens		59
3	French (fr) Déduction naturelle		58
4	Dutch (nl) Natuurlijke deductie		18
5	Italian (it) Deduzione naturale		16
6	Japanese (ja) 自然演繹		16
7	Chinese (zh) 自然演绎		15
8	Polish (pl) Dedukcja naturalna		12
9	Spanish (es) Deducción natural		11
10	Portuguese (pt) Dedução natural		9

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 "Natural deduction" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Natural deduction		1
2	German (de) Systeme natürlichen Schließens		0
3	Spanish (es) Deducción natural		0
4	Persian (fa) استنتاج طبیعی		0
5	Finnish (fi) Luonnollinen päättely		0
6	French (fr) Déduction naturelle		0
7	Italian (it) Deduzione naturale		0
8	Japanese (ja) 自然演繹		0
9	Korean (ko) 자연 연역		0
10	Dutch (nl) Natuurlijke deductie		0

More...

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

Language versions of the article "Natural deduction" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Natural deduction		409
2	Portuguese (pt) Dedução natural		179
3	French (fr) Déduction naturelle		124
4	Russian (ru) Натуральный вывод		97
5	Japanese (ja) 自然演繹		94
6	Chinese (zh) 自然演绎		81
7	Korean (ko) 자연 연역		50
8	German (de) Systeme natürlichen Schließens		43
9	Spanish (es) Deducción natural		28
10	Simple English (simple) Natural deduction		20

More...

#	Language	Value
de	German Systeme natürlichen Schließens
en	English Natural deduction
es	Spanish Deducción natural
fa	Persian استنتاج طبیعی
fi	Finnish Luonnollinen päättely
fr	French Déduction naturelle
it	Italian Deduzione naturale
ja	Japanese 自然演繹
ko	Korean 자연 연역
nl	Dutch Natuurlijke deductie
no	Norwegian Naturlig deduksjon
pl	Polish Dedukcja naturalna
pt	Portuguese Dedução natural
ru	Russian Натуральный вывод
simple	Simple English Natural deduction
sv	Swedish Naturlig deduktion
zh	Chinese 自然演绎

Best Rank

English: #167280 10.2008

Global: #157397 12.2008

Best Rank

English: #5936 05.2002

Global: #7379 05.2002

On 21 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Alysa Liu, Eric Dane, 2026 Winter Olympics, Rebecca Gayheart, Johannes Høsflot Klæbo, Wuthering Heights, amyotrophic lateral sclerosis, Andrew Mountbatten-Windsor, John F. Kennedy Jr..

In English Wikipedia the most popular articles on that day were: Eric Dane, Alysa Liu, Rebecca Gayheart, Jeffrey Epstein, 2026 Winter Olympics, Eileen Gu, John F. Kennedy Jr., Carolyn Bessette Kennedy, Deaths in 2026, Johannes Høsflot Klæbo.

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