FREGE, Gottlob (1848-1925), German mathematician. Professor of Mathematics at Jena. Rigorous Cantorian, first Logicist;, 'number is not abstracted from things…not anything physical…nor subjective'; 1902 felt life work as set out in Die Grundlagen der Arithmetik (1884) destroyed by Russell's letter about 'set of all sets' problem.

Analytic Philosophy and the Vienna Circle