Augustin Sesmat
Augustin Sesmat was a French mathematician and logician. He was professor of history and criticism of science at the Institut Catholique [de Paris] in the 1930s. He was probably the first person to discover the logical hexagon, thus solving a problem posed by Aristotle.
Works
Le système absolu classique et les mouvements réels, 1936.Logique. I. Les définitions, les jugements. ouvrage publiés avec le concours de CNRS, Paris, 1950, 359 pp.Logique. II. Les raisonnements, la logistique. Hermann & Cie, Paris,1951, pp. 361–776.Dialectique, Hamelin et la philosophie chrétienne, Bloud & Gay, Paris,1955, 38 pp.