Contraposition

Contraposition - inference that says that a conditional statement is logically equivalent to its contrapositive. Article “Contraposition” in English Wikipedia has 45.8 points for quality (as of July 1, 2026). The article contains 18 references and 29 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 “Contraposition”, its content was written by 220 registered users of English Wikipedia and edited by 529 registered Wikipedia users in all languages.

The article is cited 156 times in English Wikipedia and cited 646 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #287 in January 2002
• Global: #332 in January 2002

The highest popularity rank from 2008:

• Local (English): #33693 in September 2014
• Global: #46972 in October 2012

There are 22 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	English (en) Contraposition		45.8121
2	Polish (pl) Prawo kontrapozycji		37.4886
3	Hebrew (he) קונטרה פוזיטיב		31.8528
4	Spanish (es) Contraposición lógica		24.2703
5	Russian (ru) Закон контрапозиции		18.4973
6	Portuguese (pt) Contraposição		18.0803
7	Arabic (ar) عكس نقيض		17.7909
8	Galician (gl) Contraposición		15.6771
9	Ukrainian (uk) Контрапозиція		12.4064
10	Italian (it) Contrapposizione		11.296

More...

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

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

#	Language	Popularity award	Relative popularity
1	English (en) Contraposition		2 970 273
2	Spanish (es) Contraposición lógica		538 693
3	Japanese (ja) 対偶 (論理学)		470 875
4	French (fr) Proposition contraposée		464 277
5	German (de) Kontraposition		200 776
6	Portuguese (pt) Contraposição		118 198
7	Russian (ru) Закон контрапозиции		89 711
8	Polish (pl) Prawo kontrapozycji		78 745
9	Korean (ko) 대우 (논리학)		69 972
10	Persian (fa) عکس نقیض		52 788

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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 "Contraposition" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Contraposition		4 358
2	Japanese (ja) 対偶 (論理学)		788
3	French (fr) Proposition contraposée		672
4	Chinese (zh) 逆否命题		366
5	German (de) Kontraposition		345
6	Spanish (es) Contraposición lógica		317
7	Russian (ru) Закон контрапозиции		170
8	Persian (fa) عکس نقیض		167
9	Korean (ko) 대우 (논리학)		130
10	Polish (pl) Prawo kontrapozycji		118

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

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

#	Language	AI award	Relative AI
1	English (en) Contraposition		220
2	French (fr) Proposition contraposée		69
3	Spanish (es) Contraposición lógica		46
4	German (de) Kontraposition		33
5	Japanese (ja) 対偶 (論理学)		21
6	Russian (ru) Закон контрапозиции		19
7	Dutch (nl) Bewijs door contrapositie		16
8	Danish (da) Kontraposition		14
9	Polish (pl) Prawo kontrapozycji		14
10	Ukrainian (uk) Контрапозиція		11

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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 "Contraposition" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Simple English (simple) Contraposition		1
2	Chinese (zh) 逆否命题		1
3	Arabic (ar) عكس نقيض		0
4	Catalan (ca) Contraposició lògica		0
5	Danish (da) Kontraposition		0
6	German (de) Kontraposition		0
7	English (en) Contraposition		0
8	Spanish (es) Contraposición lógica		0
9	Persian (fa) عکس نقیض		0
10	French (fr) Proposition contraposée		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 "Contraposition" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Contraposition		156
2	French (fr) Proposition contraposée		113
3	Swedish (sv) Kontraposition		55
4	Polish (pl) Prawo kontrapozycji		46
5	Spanish (es) Contraposición lógica		42
6	Japanese (ja) 対偶 (論理学)		36
7	German (de) Kontraposition		27
8	Ukrainian (uk) Контрапозиція		22
9	Portuguese (pt) Contraposição		19
10	Korean (ko) 대우 (논리학)		18

More...

#	Language	Value
ar	Arabic عكس نقيض
ca	Catalan Contraposició lògica
da	Danish Kontraposition
de	German Kontraposition
en	English Contraposition
es	Spanish Contraposición lógica
fa	Persian عکس نقیض
fr	French Proposition contraposée
gl	Galician Contraposición
he	Hebrew קונטרה פוזיטיב
it	Italian Contrapposizione
ja	Japanese 対偶 (論理学)
ko	Korean 대우 (논리학)
nl	Dutch Bewijs door contrapositie
pl	Polish Prawo kontrapozycji
pt	Portuguese Contraposição
ru	Russian Закон контрапозиции
simple	Simple English Contraposition
sr	Serbian Контрапозиција
sv	Swedish Kontraposition
uk	Ukrainian Контрапозиція
zh	Chinese 逆否命题

Best Rank

English: #33693 09.2014

Global: #46972 10.2012

Best Rank

English: #287 01.2002

Global: #332 01.2002

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

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