Leo Harrington, Date of Birth

Leo Harrington

American mathematician

Date of Birth: 17-May-1946

Profession: mathematician, university teacher, philosopher

Nationality: United States

Zodiac Sign: Taurus

Leo Anthony Harrington (born May 17, 1946) is a professor of mathematics at the University of California, Berkeley who works in recursion theory, model theory, and set theory. Harrington and Jeff Paris proved the Paris–Harrington theorem.Harrington showed that if the axiom of determinacy holds for all analytic sets then x# exists for all reals x.Harrington and Saharon Shelah showed that the first-order theory of the partially ordered set of recursively enumerable Turing degrees is undecidable.

George Bergman (1943–)

	Alternative names	George M. Bergman
	Description	American university teacher
	Date of birth	22 July 1943
	Location of birth	Brooklyn
	Authority control	: Q16198978 VIAF: 36173960 ISNI: 0000 0001 1054 507X LCCN: n96003979 MGP: 32848 GND: 172970725 WorldCat