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# Michael D. Morley

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**Michael Darwin Morley** (1930 – October 11, 2020)^{[1]} was an American mathematician. Morley was professor emeritus at Cornell University.^{[1]}
His research is in mathematical logic and model theory, and he was best known for Morley's categoricity theorem.^{[2]} He was born in Youngstown, Ohio

Morley died on October 11, 2020 in Sayre, Pennsylvania at the age of 90.^{[1]}

## References

- ↑
^{1.0}^{1.1}^{1.2}"Michael Morley, Professor Emeritus of Mathematics, dies at 90". https://math.cornell.edu/michael-morley-professor-emeritus-mathematics-dies-90. - ↑ Morley, Michael (1965). "Categoricity in power".
*Trans. Amer. Math. Soc.***114**: 514–538. .