Fitch's paradox of knowability

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Fitch's paradox of knowability

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Fitch's paradox of knowability - modal logic paradox where the following propositions are contradictory: (A) knowledge implies truth, (B) knowing a conjunction implies knowing each conjunct, (C) all truths are knowable, (D) some truths are not known. Article "Fitch's paradox of knowability" in English Wikipedia has 14 points for quality (as of July 1, 2025). The article contains 1 references and 7 sections. The article also contains quality flaw template, which reduce quality score.

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

In June 2025 the article "Fitch's paradox of knowability" was edited by 1 authors in English Wikipedia and written by 1 authors in all languages.

Since the creation of article "Fitch's paradox of knowability", its content was written by 47 registered users of English Wikipedia and edited by 68 registered Wikipedia users in all languages.

The article is cited 120 times in English Wikipedia and cited 123 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #60987 in October 2014
  • Global: #167413 in June 2016

The highest popularity rank from 2008:

  • Local (English): #194345 in October 2021
  • Global: #345728 in October 2021

There are 3 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.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Fitch's paradox of knowability
13.9604
2Italian (it)
Paradosso della conoscibilità di Fitch
8.9353
3Korean (ko)
피치의 인식 가능성의 역설
8.0408
More...

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

Most popular in all the time

The most popular language versions of the article "Fitch's paradox of knowability" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Fitch's paradox of knowability
179 051
2Italian (it)
Paradosso della conoscibilità di Fitch
7 222
3Korean (ko)
피치의 인식 가능성의 역설
6 558
More...

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

Most popular in June 2025

The most popular language versions of the article "Fitch's paradox of knowability" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Fitch's paradox of knowability
1 172
2Italian (it)
Paradosso della conoscibilità di Fitch
64
3Korean (ko)
피치의 인식 가능성의 역설
19
More...

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

The highest AI

Language versions of the article "Fitch's paradox of knowability" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Fitch's paradox of knowability
47
2Italian (it)
Paradosso della conoscibilità di Fitch
15
3Korean (ko)
피치의 인식 가능성의 역설
6
More...

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

The highest AI in June 2025

Language versions of the article "Fitch's paradox of knowability" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Fitch's paradox of knowability
1
2Italian (it)
Paradosso della conoscibilità di Fitch
0
3Korean (ko)
피치의 인식 가능성의 역설
0
More...

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

The highest CI

Language versions of the article "Fitch's paradox of knowability" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Fitch's paradox of knowability
120
2Korean (ko)
피치의 인식 가능성의 역설
2
3Italian (it)
Paradosso della conoscibilità di Fitch
1
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
enEnglish
Fitch's paradox of knowability
itItalian
Paradosso della conoscibilità di Fitch
koKorean
피치의 인식 가능성의 역설

Popularity rank trends

Best Rank English:
#194345
10.2021
Global:
#345728
10.2021

AI rank trends

Best Rank English:
#60987
10.2014
Global:
#167413
06.2016

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Fitch's paradox of knowability from Wikipedia articles about List of paradoxes, Alonzo Church, Knower paradox, Frederic Brenton Fitch and Moores paradox. Whereas reading the article about Fitch's paradox of knowability people most often go to Wikipedia articles on Moores paradox, Frederic Brenton Fitch, Meno, Epistemic modal logic and Anti-realism.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 12 August 2025

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In English Wikipedia the most popular articles on that day were: Weapons (2025 film), Danielle Spencer (American actress), Cristiano Ronaldo, Deaths in 2025, Taylor Swift, Wednesday (TV series), Superman (2025 film), Georgina Rodríguez, Coolie (2025 film), The Fantastic Four: First Steps.

About WikiRank

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