When1: 1890
Who: Giuseppe Peano [Peano, Giuseppe]
What: mathematician
Where: Turin, Italy
works\ Mathematical Formulas [1890]
Detail: He lived 1858 to 1932. He invented logical notation, which Russell used. He studied axiomatic number systems. He invented Peano's postulates about rational numbers, based on Dedekind's work. He used reflexive, symmetric, and transitive axioms to derive rational numbers from natural numbers.
Mathematical Sciences>Mathematics>History>Axiomatic Theory
3-Mathematics-History-Axiomatic Theory
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Date Modified: 2022.0224