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.

Andrzej Grzegorczyk
Grzegorczyk in 2012
Born(1922-08-22)22 August 1922
Warsaw, Poland
Died20 March 2014(2014-03-20) (aged 91)
Warsaw, Poland
Resting placeCemetery in Pruszków, Poland
52°10N 20°48E
NationalityPolish
CitizenshipPoland
Alma materJagiellonian University
University of Warsaw
Known forGrzegorczyk hierarchy
Grzegorczyk logic (S4Grz)
SpouseRenata Maria Grzegorczykowa (m. 1953)
ChildrenAgnieszka Grzegorczyk-Przeciszewska
Tomasz Grzegorczyk
AwardsStefan 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
FieldsLogic
Ethics
Mathematics
philosophy
Religious study
Social issues
Education
InstitutionsUniversity of Warsaw
Polish Academy of Sciences
University of Amsterdam
Thesis On Topological Spaces in Topologies without Points  (1950)
Doctoral advisorAndrzej Mostowski
Other academic advisorsZygmunt Zawirski
Władysław Tatarkiewicz
Doctoral studentsStanisław Krajewski
Signature
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Family

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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

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Sources

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