Michael D. Morley

Michael Darwin Morley
Morley in Berkeley in 1973
Born(1930-09-29)September 29, 1930
DiedOctober 11, 2020(2020-10-11) (aged 90)
NationalityAmerican
AwardsLeroy P. Steele Prize (2003)
Scientific career
FieldsMathematics
InstitutionsCornell University
Thesis Categoricity in Power  (1962)
Doctoral advisorSaunders 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.