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Jan Łukasiewicz

Jan Leopold 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. Conte…

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science · Polish logician and philosopher (1878–1956) · mathematician · philosopher · university teacher · computer scientist · logician · also Jan Łukasiewicz, Jan Lukasiewicz, Łukasiewicz

Born 21 December 1878 · Died 13 February 1956 · Q313454

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Jan 1956Quote
Logikę wraz z matematyką możnaby przyrównać do misternej sieci, którą zarzucamy w niezmierzoną toń zjawisk, by wyławiać z niej perły syntez naukowych.
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Jan 1956Quote
Pragnienie [wiedzy] tyczy się faktów, ważnych dla jednostek, albo dla wszystkich ludzi. Zakochany, którego dręczy niepewność, czy ukochana mu sprzyja, pragnie poznać fakt, ważny dla niego samego. Ale każdy człowiek z lękiem i ciekawością spogląda ku śmierci, usiłując daremnie zgłębić jej tajemnicę.
68%Wikiquote (pl)Source

2022· 1 entry

Nov 20, 2022Documented record69% confidence

Jan Łukasiewicz

PolskieRadio: Final farewell for Polish scholar and politician Jan Łukasiewicz

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2008· 1 entry

2008Source gives the year onlyDocumented record70% confidence

Jan Łukasiewicz

The Polish Information Processing Society established the Jan Łukasiewicz Award, to be presented to the most innovative Polish IT companies

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1960· 1 entry

1960Source gives the year onlyDocumented record70% confidence

Jan Łukasiewicz

Łukasiewicz's notation concepts and stacks were used as the basis of the Burroughs B5000 computer designed by Robert S

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1956· 7 entries

Feb 13, 1956Documented record86% confidence

Jan Łukasiewicz

Died 1956-02-13.

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c. 1956Exact date was not recorded in the sourceDirect quote68% confidence

Jan Łukasiewicz

“Pragnienie [wiedzy] tyczy się faktów, ważnych dla jednostek, albo dla wszystkich ludzi. Zakochany, którego dręczy niepewność, czy ukochana mu sprzyja, pragnie poznać fakt, ważny dla niego samego. Ale każdy człowiek z lękiem i ciekawością spogląda ku śmierci, usiłując daremnie zgłębić jej tajemnicę.”

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c. 1956Exact date was not recorded in the sourceDirect quote68% confidence

Jan Łukasiewicz

“Logikę wraz z matematyką możnaby przyrównać do misternej sieci, którą zarzucamy w niezmierzoną toń zjawisk, by wyławiać z niej perły syntez naukowych.”

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c. 1956Exact date was not recorded in the sourceDirect quote68% confidence

Jan Łukasiewicz

“Zbiór faktów wszelako nie jest jeszcze nauką. Ten jest prawdziwym uczonym, kto umie fakty powiązać w syntezy. Nie wystarcza zaś na to samo poznanie faktów; trzeba jeszcze przynieść z sobą myśl twórczą.”

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c. 1956Exact date was not recorded in the sourceDirect quote68% confidence

Jan Łukasiewicz

“Z nieskończonej ilości faktów musimy wybierać tylko fakty ważne, a inne jako błahe pomijać. Jakże łatwo byłoby dokonywać odkryć naukowych, gdyby nauka polegała tylko na gromadzeniu jakichkolwiek zdań prawdziwych!”

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c. 1956Exact date was not recorded in the sourceDirect quote68% confidence

Jan Łukasiewicz

“Słusznie przyrównywano świat zjawisk do depeszy szyfrowanej. Kto zna klucz depeszy, ten ułoży ją w szyfrach mechanicznie i odcyfruje ją równie łatwo. Ale my jesteśmy w położeniu tych niewtajemniczonych, co depeszy nie układali i klucza nie znają, i muszą go dopiero wyszukać drogą mozolnych i zawodnych prób. Tym kluczem do odcyfrowania znaków przyrody są teorie naukowe.”

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c. 1956Exact date was not recorded in the sourceDirect quote68% confidence

Jan Łukasiewicz

“Rozumowaniem nazywam taką czynność umysłu, która na podstawie zdań danych, będących punktem wyjścia rozumowania, szuka zdań innych, będących celem rozumowania, a połączonych z poprzedniemi stosunkiem wynikania.”

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1955· 1 entry

1955Source gives the year onlyDocumented record70% confidence

Jan Łukasiewicz

Łukasiewicz received an honorary doctorate from the Trinity College Dublin in acknowledgement of his academic achievements

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1944· 1 entry

1944Source gives the year onlyDocumented record70% confidence

Jan Łukasiewicz

(Łukasiewicz was fearful of the Red Army advance)

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1935· 2 entries

Jun 15, 1935Documented record84% confidence

Jan Łukasiewicz

Awarded Hungarian Order of Merit (1935).

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1935Source gives the year onlyDocumented record70% confidence

Jan Łukasiewicz

Łukasiewicz was awarded the Hungarian Order of Merit

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1923· 2 entries

Jun 15, 1923Documented record84% confidence

Jan Łukasiewicz

Awarded Commander of the Order of Polonia Restituta (1923).

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1923Source gives the year onlyDocumented record70% confidence

Jan Łukasiewicz

Łukasiewicz became the recipient of the Commander's Cross with Star of the Order of Polonia Restituta

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1922· 1 entry

Jan 1, 1922Documented record84% confidence

Jan Łukasiewicz

Career landmark: Rector of the University of Warsaw (1922–1923).

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1919· 2 entries

Jan 1, 1919Documented record84% confidence

Jan Łukasiewicz

Career landmark: Minister of National Education (1919–1919).

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1919Source gives the year onlyDocumented record70% confidence

Jan Łukasiewicz

Łukasiewicz left the university to serve as Polish Minister of Religious Denominations and Public Education in Paderewski's government until 1920

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1918· 1 entry

1918Source gives the year onlyDocumented record79% confidence

Jan Łukasiewicz

(included in Łukasiewicz 1970, pp

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1917· 1 entry

1917Source gives the year onlyDocumented record66% confidence

Jan Łukasiewicz

Was the first explicitly axiomatized non-classical logical calculus

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1915· 1 entry

1915Source gives the year onlyDocumented record66% confidence

Jan Łukasiewicz

Was invited to lecture as a full professor at the University of Warsaw, which the German occupation authorities had reopened after it had been closed down by the Tsarist government in the 19th century

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1906· 1 entry

1906Source gives the year onlyDocumented record66% confidence

Jan Łukasiewicz

Submitted his thesis to the University of Lemberg

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1905· 1 entry

1905Source gives the year onlyDocumented record66% confidence

Jan Łukasiewicz

Received a scholarship to complete his philosophy studies at the University of Berlin and the University of Louvain in Belgium

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1902· 1 entry

1902Source gives the year onlyDocumented record66% confidence

Jan Łukasiewicz

Received a Doctor of Philosophy degree under the patronage of Emperor Franz Joseph I of Austria, who gave him a special doctoral ring with diamonds

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1897· 1 entry

1897Source gives the year onlyDocumented record66% confidence

Jan Łukasiewicz

Went on to Lemberg University, where he studied philosophy and mathematics

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1878· 1 entry

Dec 21, 1878Documented record86% confidence

Jan Łukasiewicz

Born 1878-12-21.

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