# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/jan-ukasiewicz
# Generated: 2026-08-13T00:03:33.884Z

schema: https://schema.org/Person
url: "https://fame.am/person/jan-ukasiewicz"
name: "Jan Łukasiewicz"
slug: "jan-ukasiewicz"
description: "Jan Łukasiewicz was a Polish logician and philosopher who is best known for Polish notation and Łukasiewicz logic. His work centred on philosophical logic, mathematical logic and history of logic. He thought innovatively about traditional propositional logic, the principle of non-contradiction and the law of excluded middle, offering one of the earliest systems of many-valued logic. Contemporary research on Aristotelian logic also builds on innovative works by Łukasiewicz, which applied methods from modern logic to the formalization of Aristotle's syllogistic."
tagline: "Polish logician, mathematician, philosopher, rector of the University of Warsaw (1878–1956)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Jan_%C5%81ukasiewicz.jpg?width=1200"
gender: "male"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1878-12-21"
deathDate: "1956-02-13"
livingStatus: "DECEASED"
scores:
  popularity:           52.68
  momentum:             0.05762814680012133
  historical:           21.98604266666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://pl.wikiquote.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://ar.wikipedia.org/wiki/%D9%8A%D8%A7%D9%86_%D9%88%D9%88%D9%83%D8%A7%D8%B4%D9%8A%D9%81%D9%8A%D8%AA%D8%B4"
    title: "يان ووكاشيفيتش"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%AF%D0%BD_%D0%9B%D1%83%D0%BA%D0%B0%D1%88%D0%B5%D0%B2%D0%B8%D1%87"
    title: "Ян Лукашевич"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Jan_Lukasiewicz"
    title: "Jan Lukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://co.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%93%CE%B9%CE%B1%CE%BD_%CE%93%CE%BF%CF%85%CE%BA%CE%B1%CF%83%CE%B9%CE%AD%CE%B2%CE%B9%CF%84%CF%82"
    title: "Γιαν Γουκασιέβιτς"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
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  - url: "https://fa.wikipedia.org/wiki/%D8%AC%D8%A7%D9%86_%D9%84%D9%88%DA%A9%D8%A7%D8%B3%DB%8C%D9%88%DB%8C%D8%B2"
    title: "جان لوکاسیویز"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://fur.wikipedia.org/wiki/Jan_Lukasiewicz"
    title: "Jan Lukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://hu.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://hy.wikipedia.org/wiki/%D5%85%D5%A1%D5%B6_%D4%BC%D5%B8%D6%82%D5%AF%D5%A1%D5%BD%D6%87%D5%AB%D5%B9"
    title: "Յան Լուկասևիչ"
    type:  "WIKIPEDIA"
  - url: "https://ia.wikipedia.org/wiki/Jan_%C5%81ukasiewicz"
    title: "Jan Łukasiewicz"
    type:  "WIKIPEDIA"
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    title: "Jan Łukasiewicz"
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    title: "Jan Łukasiewicz"
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    title: "ヤン・ウカシェヴィチ"
    type:  "WIKIPEDIA"
  - url: "https://kk.wikipedia.org/wiki/%D0%AF%D0%BD_%D0%9B%D1%83%D0%BA%D0%B0%D1%81%D0%B5%D0%B2%D0%B8%D1%87"
    title: "Ян Лукасевич"
    type:  "WIKIPEDIA"
  - url: "https://ko.wikipedia.org/wiki/%EC%96%80_%EC%9A%B0%EC%B9%B4%EC%8B%9C%EC%97%90%EB%B9%84%EC%B9%98"
    title: "얀 우카시에비치"
    type:  "WIKIPEDIA"
  - url: "https://la.wikipedia.org/wiki/Ioannes_%C5%81ukasiewicz"
    title: "Ioannes Łukasiewicz"
    type:  "WIKIPEDIA"
  - url: "https://lv.wikipedia.org/wiki/Jans_Lukasevi%C4%8Ds"
    title: "Jans Lukasevičs"
    type:  "WIKIPEDIA"
  - url: "https://mk.wikipedia.org/wiki/%D0%88%D0%B0%D0%BD_%D0%9B%D1%83%D0%BA%D0%B0%D1%88%D0%B8%D1%98%D0%B5%D0%B2%D0%B8%D1%87"
    title: "Јан Лукашијевич"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikiquote.org/wiki/%D0%AF%D0%BD_%D0%9B%D1%83%D0%BA%D0%B0%D1%88%D0%B5%D0%B2%D0%B8%D1%87"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://www.wikidata.org/wiki/Q313454"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump