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Richard Dedekind    

1831-1916

Biography

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German mathematician who developed a major redefinition of irrational numbers in terms of arithmetic concepts. Although not fully recognized in his lifetime, his treatment of the ideas of the infinite and of what constitutes a real number continues to influence modern mathematics.

Biography

1831 born October 6
1850 entered University of Gottingen with solid math background from Collegium Carolinum in Brunswick
1852 received doctorate, last pupil of Gauss
1854 awarded habilitation degrees, began teaching at Gottingen
1855 began friendship with Dirichlet
1858 appointed to Polytechnikum in Zurich and began teaching
1862 appointed to Brunswick Polytechnikum (Callegium Carolinum upgraded), elected to the Gottingen Academy
1871 supplemented Dirichlet's lectures and introduced notion of an "ideal," a term he coined
1872 published paper on "Dedekind cuts" to define real numbers
1874 met Cantor
1879 published paper on purely arithmetic definition of continuity
1880 elected to Berlin Academy
1882 published joint paper with Heinrich Weber which applies his theory of ideals to the theory of Reimann Surfaces
1894 retired from Brunswick Polytechnikum
1900 elected to Academy of Rome, the Leopoldino-Carolina Naturae Curiosorum Academia, and the Academie des Sciences in Paris
1916 died