Roland Fraïssé, French mathematical logician (d. 2008)
Roland Fraïssé (French: [ʁɔlɑ̃ fʁajse]; 12 March 1920 – 30 March 2008) was a French mathematical logician.
Fraïssé received his doctoral degree from the University of Paris in 1953. In his thesis, Fraïssé used the back-and-forth method to determine whether two model-theoretic structures were elementarily equivalent. This method of determining elementary equivalence was later formulated as the Ehrenfeucht–Fraïssé game. Fraïssé worked primarily in relation theory. Another of his important works was the Fraïssé construction of a Fraïssé limit of finite structures. He also formulated Fraïssé's conjecture on order embeddings, and introduced the notion of compensor in the theory of posets.Most of his career was spent as Professor at the University of Provence in Marseille, France.
1920Mar, 12
Roland Fraïssé
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Events on 1920
- 19Jan
League of Nations
The United States Senate votes against joining the League of Nations. - 8Mar
Arab
The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established. - 19Mar
Treaty of Versailles
The United States Senate rejects the Treaty of Versailles for the second time (the first time was on November 19, 1919). - 28Apr
Soviet Union
Azerbaijan is added to the Soviet Union. - 25Oct
Sinn Féin
After 74 days on hunger strike in Brixton Prison, England, the Sinn Féin Lord Mayor of Cork, Terence MacSwiney dies.