Sy Friedman

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Sy-David Friedman
Professor Sy Friedman before a lecture during The First European Set Theory Meeting, Będlewo (Poland), July 2007
Born (1953-05-06) May 6, 1953 (age 64)
Residence Vienna, Austria
Nationality American/Austrian
Fields Mathematician
Institutions University of Vienna
Alma mater MIT
Doctoral advisor Gerald E. Sacks
Known for Mathematical logic, Set theory, Large cardinal property

Sy-David Friedman (born May 23, 1953 in Chicago) is an American and Austrian mathematician and a professor of mathematics at the University of Vienna and the director of the Kurt Gödel Research Center for Mathematical Logic. His main research interest lies in mathematical logic, in particular in set theory and recursion theory.

Friedman is the brother of Ilene Friedman and the brother of mathematician Harvey Friedman.


He studied at Northwestern University and, from 1970, at the Massachusetts Institute of Technology. He received his Ph.D. in 1976 from MIT (his thesis Recursion on Inadmissible Ordinals was written under the supervision of Gerald E. Sacks).

In 1979 Sy Friedman accepted a position at MIT, and in 1990 he became a full professor there. Since 1999 he has been a professor of mathematical logic at the University of Vienna. He is a Fellow of Collegium Invisibile.[1]

Selected publications and results[edit]

He authored about 70 research articles, including:

He also published a research monograph

  • Friedman, Sy D. (2000). Fine structure and class forcing. de Gruyter Series in Logic and its Applications. 3. Berlin: Walter de Gruyter & Co. ISBN 3-11-016777-8. 


  1. ^ "List of Fellows". Retrieved 10 May 2012. 

External links[edit]