found useful and were revived by several mathematicians in the 20th century. Kronecker also contributed to the concept of continuity, reconstructing the form of irrational numbers in real numbers. In analysis, Kronecker rejected the formulation of a continuous, nowhere differentiable function by his colleague, Karl Weierstrass. Also named for Kronecker are the Kronecker limit formula, Kronecker's congruence, Kronecker delta, Kronecker comb, Kronecker symbol, Kronecker product, Kronecker's method for factorizing polynomials, Kronecker substitution, Kronecker's theorem in number theory, Kronecker's lemma, and Eisenstein–Kronecker numbers. Philosophy of mathematics Kronecker's finitism made him a forerunner of intuitionism in foundations of mathematics. Honours Kronecker was elected as a member of several academies: Prussian Academy of Sciences (1861) French Academy of Sciences (1868) Royal Society (1884). The 25624 Kronecker asteroid is named after him. Publications References Further reading External links 1823 births 1891 deaths 19th-century German mathematicians Converts to Christianity Corresponding members of the Saint Petersburg Academy of Sciences Foreign Members of the Royal Society 19th-century German Jews Humboldt University of Berlin alumni Academic staff of the Humboldt University of Berlin Independent scientists Number theorists Intuitionism People from Legnica People from the Province of Silesia