
1861 – 1931
Cesare Burali-Forti (1861-1931) was an Italian mathematician and logician, a member of Giuseppe Peano's school in Turin. He is best known for discovering the Burali-Forti paradox in 1897, one of the earliest antinomies in set theory, which showed that the set of all ordinal numbers leads to a contradiction.
Discovered the Burali-Forti paradox (1897), the first published paradox of set theory
Contributed to the development of transfinite ordinal number theory
Collaborated with Giuseppe Peano on symbolic logic and the Formulario Mathematico
Published influential works on vector analysis and linear transformations
Advanced the axiomatization of mathematics in the Italian logical tradition