Andrzej Grzegorczyk

Andrzej Grzegorczyk
Grzegorczyk in 2012
Born	(1922-08-22)22 August 1922 Warsaw, Poland
Died	20 March 2014(2014-03-20) (aged 91) Warsaw, Poland
Resting place	Cemetery in Pruszków, Poland 52°10′N 20°48′E
Nationality	Polish
Citizenship	Poland
Alma mater	Jagiellonian University University of Warsaw
Known for	Grzegorczyk hierarchy Grzegorczyk logic (S4Grz)
Spouse	Renata Maria Grzegorczykowa (m. 1953)
Children	Agnieszka Grzegorczyk-Przeciszewska Tomasz Grzegorczyk
Awards	Stefan Banach Prize (1957) Knight's Cross of Order of Polonia Restituta (1997) dr. h.c. of Blaise Pascal University (2010) dr. h.c. of Jagiellonian University (2013) Officer's Cross of Order of Polonia Restituta (2014)
Scientific career
Fields	Logic Ethics Mathematics philosophy Religious study Social issues Education
Institutions	University of Warsaw Polish Academy of Sciences University of Amsterdam
Thesis	On Topological Spaces in Topologies without Points  (1950)
Doctoral advisor	Andrzej Mostowski
Other academic advisors	Zygmunt Zawirski Władysław Tatarkiewicz
Doctoral students	Stanisław Krajewski
Signature
Notes
Family members include: Stanisław Jan Majewski Erazm Majewski Karol Borsuk Magdalena Borsuk-Białynicka Andrzej Białynicki-Birula Iwo Białynicki-Birula Marcin Przeciszewski

Andrzej Grzegorczyk ([ˈandʐɛj ɡʐɛˈɡɔrt͡ʂɨk]; 22 August 1922 – 20 March 2014) was a Polish logician, mathematician, philosopher and ethicist. He was noted for his work in computability, mathematical logic and the foundations of mathematics.

Family

In 1953, Grzegorczyk married Renata Maria Grzegorczykowa, a Polish philologist and expert in polonist linguistics. They had a daughter and a son.

Grzegorczyk died of natural causes in Warsaw on 20 March 2014 at the age of 91. His body is buried in the Cemetery of Pruszków.

See also

• List of Polish people

Sources

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• Śliwerski, Bogusław (2016): O kluczowej dla pedagogiki twórczości filozofa Andrzeja Grzegorczyka. Blog Pedagog, 4 January 2016
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• Golińska-Pilarek, Joanna (2016): On the Minimal Non-Fregean Grzegorczyk Logic: To the Memory of Andrzej Grzegorczyk. Studia Logica: An International Journal for Symbolic Logic, Volume 104, Issue 2, pp. 209–234
• Hirnyy, Oleg (June 2016). "Andrzej Grzegorczyk as a Philosopher of Education". Filosofiya osvity / Philosophy of Education. 18 (1). Institute of Higher Education NAES of Ukraine: 242–256. doi:10.31874/2309-1606-2016-18-1-242-256.
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• Paris, Jeffrey Bruce; Wilkie, Alex James (1984): $\Delta _{0}$ sets and induction. In Guzicki, Wojciech; Marek, Wiktor Witold; Pelc, Andrzej; Rauszer, Cecylia (editors) (1984): Open Days in Model Theory and Set Theory: Proceedings of a Conference held in September 1981 at Jadwisin, near Warsaw, Poland. University of Leeds, Leeds, pp. 237–248
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External links

• Andrzej Grzegorczyk profile at Mathematics Genealogy Project
• Andrzej Grzegorczyk's Warsaw Uprising biogram (in Polish)
• Andrzej Grzegorczyk's obituary (in Polish) by Polish Mathematical Society
• Andrzej Grzegorczyk's profile by Calculemus
• 2012 Interview with Andrzej Grzegorczyk (in Polish)
• Andrzej Grzegorczyk's 90th birthday at the Warsaw branch of the Polish Philosophical Society
• Andrzej Grzegorczyk's lecture on 17 May 2011, the University of Opole, Poland
• 2006 Appeal of the Polish Science Representatives to the Minister of Environment Jan Szyszko in Defense of the Tatra Mountains (in Polish)