Background
Keyser, Cassius Jackson was born on May 15, 1862 in Rawson, Ohio, United States. Son of Jacob B. and Margaret Jane (Ryan) Keyser.
(Originally published in 1922. This volume from the Cornel...)
Originally published in 1922. This volume from the Cornell University Library's print collections was scanned on an APT BookScan and converted to JPG 2000 format by Kirtas Technologies. All titles scanned cover to cover and pages may include marks notations and other marginalia present in the original volume.
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journalist mathematician philosopher
Keyser, Cassius Jackson was born on May 15, 1862 in Rawson, Ohio, United States. Son of Jacob B. and Margaret Jane (Ryan) Keyser.
Bachelor of Science, Ohio Normal University, 1883. Studied law, Ann Arbor, Michigan, and Kenton, O., 1883-1885. Bachelor of Science, University of Missouri, 1892.
Student summer school, University of Michigan, 1894.
Master of Arts, Columbia, 1896. Doctor of Philosophy, 1901.
Doctor of Laws, University of Missouri, 1914. Doctor of Science, Columbia, 1929.
Doctor of Humane Letters, Yeshiva College, 1942.
Keyser"s initial higher education was at North West Ohio Normal School (now Ohio Northern University), then became a school teacher and principal. He spent the rest of his career at Columbia, becoming the Adrain Professor of Mathematics (1904-1927) and Head of the department (1910-1916). He retired in 1927. Keyser was one of the first Americans to appreciate the new directions in the foundation of mathematics, heralded by the work of Europeans such as Richard Dedekind, Georg Cantor, Giuseppe Peano, Henri Poincaré, David Hilbert, Ernst Zermelo, Bertrand Russell, and A. North. Whitehead.
He was also one of the first to appreciate the mathematical and philosophical importance of his fellow American Charles Sanders Peirce.
While at Columbia, Keyser supervised only two Doctors of Philosophy, but they both proved quite consequential: Eric Temple Bell and the logician Emil Post.
(Originally published in 1922. This volume from the Cornel...)
He became a member of the American board of the Hibbert Journal, and made contributions to that and other philosophical journals. He was a fellow of the American Academy for the Advancement of Science, and a member of the American Mathematical Society.
Married Ella Maud Crow, August 19, 1885. Married second, Sarah Porter Youngman, April.