Stanisław Leśniewski

Stanisław Leśniewski
Born(1886-03-30)30 March 1886
Died13 May 1939(1939-05-13) (aged 53)
Alma materLviv University
Known forCalculus of names
Mereology
Scientific career
FieldsMathematics
InstitutionsUniversity of Warsaw
Doctoral advisorKazimierz Twardowski
Doctoral studentsAlfred Tarski

Stanisław Leśniewski (Polish: [lɛɕˈɲɛfskʲi]; 30 March 1886 – 13 May 1939) was a Polish mathematician, philosopher and logician. A professor of mathematics at the University of Warsaw, he was a leading representative of the Lwów–Warsaw School of Logic and is known for coining and introducing the concept of mereology as part of a comprehensive framework for logic and mathematics.