Born Aug. 27, 1858, in Cuneo; died Apr. 20, 1932, in Turin. Italian mathematician.
Peano became a professor at the University of Turin in 1890. His interests included the formal logical foundations of mathematics and also the basic concepts and facts of analysis—for example, the question of the broadest possible existence conditions for solutions of differential equations and the definition and scope of the concept of a curve. His set of postulates for defining the natural numbers has entered into general use. Peano is also known for an example of a continuous (Jordan) curve that entirely fills a square.
WORKSArithmetices principia, nova methodo exposita. Turin, 1889.
Lezioni di analisi infinitesimale, vols. 1–2. Turin, 1893.