23 July 1854|
Lysianka, Kiev Governorate, Russian Empire (present-day Ukraine)
|Died||9 March 1931
|Institutions||Odessa University, University of Kraków|
|Alma mater||Odessa University, University of Berlin|
|Doctoral advisor||Karl Weierstrass|
|Known for||Śleszyński-Pringsheim theorem|
Ivan Sleshinsky or Jan Śleszyński (Russian: Иван Владиславович Слешинский) (23 July 1854 – 9 March 1931) was a Polish-Russian mathematician. He was born in Lysianka, Russian Empire to Polish parents.
Śleszyński's main work was on continued fractions, least squares and axiomatic proof theory based on mathematical logic. He and Alfred Pringsheim, working separately, proved what is now called the Śleszyński–Pringsheim theorem.
His most important publications include: "Teoria dowodu" ("The theory of proof") in two volumes (1925, 1929), and "Teoria wyznaczników" ("The theory of determinants") (1926).
- Andrew Schumann. Logic in Central and Eastern Europe. The Social Context. 2012.
- Storrs McCall. Polish Logic 1920-1939. Oxford University Press. 1967. p. 13
- Jan Woleński. Mathematical logic in Poland 1900-1939: people, circles, institutions, ideas. Mod. Log. Volume 5, Number 4 (1995), pp. 367-368.
- P. S. Krzystek. "Teoria dowodu" Jana Śleszyńskiego. Ruch filozoficzny. Vol. 33. n. 3/4. 1975. Polskie Towarzystwo Filozoficzne. p. 338.
- O'Connor, John J.; Robertson, Edmund F., "Ivan Śleszyński", MacTutor History of Mathematics archive, University of St Andrews.
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