If and only if

Quality:

If and only if - logical connective. Article “If and only if” in Simple English Wikipedia has 27.1 points for quality (as of July 1, 2026). The article contains 7 references and 2 sections.

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

Since the creation of article “If and only if”, its content was written by 21 registered users of Simple English Wikipedia and edited by 1017 registered Wikipedia users in all languages.

The article is cited 34 times in Simple English Wikipedia and cited 8471 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Simple English): #538 in November 2018
• Global: #466 in June 2002

The highest popularity rank from 2008:

• Local (Simple English): #1 in November 2009
• Global: #16347 in November 2009

There are 39 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) If and only if		56.9717
2	Galician (gl) Se e só se		32.6691
3	Hungarian (hu) Bikondicionális		31.8245
4	Basque (eu) Inplikazio bikoitz		29.219
5	Simple English (simple) If and only if		27.1293
6	Spanish (es) Bicondicional		27.1086
7	Chinese (zh) 当且仅当		24.7699
8	Greek (el) Αν και μόνο αν		22.1245
9	Romanian (ro) Dacă și numai dacă		21.7453
10	Hindi (hi) यदि और केवल यदि		19.2835

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

#	Language	Popularity award	Relative popularity
1	English (en) If and only if		3 201 808
2	Spanish (es) Bicondicional		1 270 772
3	Japanese (ja) 同値		604 612
4	Chinese (zh) 当且仅当		425 125
5	Polish (pl) Równoważność		253 143
6	Italian (it) Se e solo se		202 603
7	Russian (ru) Тогда и только тогда		192 590
8	Portuguese (pt) Se e somente se		186 894
9	Hebrew (he) אם ורק אם		102 895
10	Dutch (nl) Dan en slechts dan als		91 940

The following table shows the language versions of the article with the highest popularity in the last month.

#	Language	Popularity award	Relative popularity
1	English (en) If and only if		6 891
2	Italian (it) Se e solo se		988
3	Japanese (ja) 同値		751
4	Chinese (zh) 当且仅当		691
5	Spanish (es) Bicondicional		496
6	Russian (ru) Тогда и только тогда		344
7	Portuguese (pt) Se e somente se		322
8	Hebrew (he) אם ורק אם		296
9	Polish (pl) Równoważność		230
10	Turkish (tr) Ancak ve ancak		210

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

#	Language	AI award	Relative AI
1	English (en) If and only if		289
2	Spanish (es) Bicondicional		95
3	Chinese (zh) 当且仅当		61
4	Hebrew (he) אם ורק אם		57
5	Dutch (nl) Dan en slechts dan als		51
6	Italian (it) Se e solo se		47
7	Japanese (ja) 同値		46
8	Polish (pl) Równoważność		38
9	Swedish (sv) Om och endast om		27
10	Persian (fa) اگر و تنها اگر		25

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

#	Language	AI award	Relative AI
1	Hebrew (he) אם ורק אם		2
2	English (en) If and only if		1
3	Basque (eu) Inplikazio bikoitz		1
4	Turkish (tr) Ancak ve ancak		1
5	Arabic (ar) إذا وفقط إذا		0
6	Bulgarian (bg) Тогава и само тогава, когато		0
7	Catalan (ca) Si i només si		0
8	Danish (da) Biimplikation		0
9	Greek (el) Αν και μόνο αν		0
10	Esperanto (eo) Se kaj nur se		0

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

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 Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, List of sex positions, 2026 Iran war, Suresh Raina, Politics of Germany, Academy Award for Best Director, 2020, DYSS-TV, 2022.

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