Roland Fraïssé

Roland Fraïssé (12 March 1920 – 30 March 2008) was a French mathematical logician. He 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, a method later formulated as the Ehrenfeucht–Fraïssé game. Fraïssé worked primarily in relation theory and is also known for the Fraïssé construction of a Fraïssé limit. 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.