Michael D. Morley

Michael Darwin Morley
Morley in Berkeley in 1973
Born	(1930-09-29)September 29, 1930 Youngstown, Ohio
Died	October 11, 2020(2020-10-11) (aged 90) Sayre, Pennsylvania
Nationality	American
Awards	Leroy P. Steele Prize (2003)
Scientific career
Fields	Mathematics
Institutions	Cornell University
Thesis	Categoricity in Power  (1962)
Doctoral advisor	Saunders Mac Lane, Robert Vaught

Michael Darwin Morley (September 29, 1930 – October 11, 2020) was an American mathematician. At his death in 2020, Morley was professor emeritus at Cornell University. His research was in mathematical logic and model theory, and he is best known for Morley's categoricity theorem, which he proved in his PhD thesis Categoricity in Power in 1962.