Augustin Sesmat ((1885-04-07)April 7, 1885 Dieulouard -- December 12, 1957(1957-12-12) (aged 72))[1] was a French mathematician and logician.
He was professor of history and criticism of science at the Institut Catholique de Paris in the 1930s.
[2] He was probably the first person to discover the logical hexagon, thus solving a problem posed by Aristotle.
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