Gaisi Takeuti

Gaisi Takeuti
Native name 竹内 外史
Born (1926-01-25)January 25, 1926
Died May 10, 2017(2017-05-10) (aged 91)
Nationality Japanese
Fields Mathematics
Institutions University of Illinois at Urbana-Champaign
Education Tokyo University
Alma mater Princeton
Known for Work in proof theory

Gaisi Takeuti (竹内 外史, Takeuchi Gaishi, January 25, 1926 – May 10, 2017[1]) was a Japanese mathematician, known for his work in proof theory.[2]

After graduating from Tokyo University, he went to Princeton to study under Kurt Gödel. He later became a professor at the University of Illinois at Urbana-Champaign. Takeuti was president (2003–2009) of the Kurt Gödel Society, having worked on the respected book Memoirs of a Proof Theorist: Godel and Other Logicians. His goal was to prove the consistency of the real numbers. To this end, Takeuti's conjecture speculates that a sequent formalisation of second-order logic has cut-elimination.[3] He is also known for his work on ordinal diagrams with Akiko Kino.

Publications

Notes

  1. Takeuti 2013.
  2. Takeuti 1953. An erratum to this article was published in the same journal (24:149–156, 1954).


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