Gottlob Frege

Gottlob Frege
Gottlob Frege
	Frege c. 1879
Born	8 November 1848; Wismar, Grand Duchy of Mecklenburg-Schwerin, German Confederation
Died	26 July 1925 (aged 76); Bad Kleinen, Free State of Mecklenburg-Schwerin, German Reich
Education
Education	University of Göttingen (PhD, 1873); University of Jena (Dr. phil. hab., 1874)
Theses	On a Geometrical Representation of Imaginary Forms in a Plane (1873); Methods of Calculation based on an Extension of the Concept of Magnitude (1874);
Doctoral advisor	Ernst Christian Julius Schering (PhD advisor)
Other advisors	Rudolf Friedrich Alfred Clebsch
Philosophical work
Era	19th-century philosophy; 20th-century philosophy
Region	Western philosophy
School	Analytic philosophy; Linguistic turn; Logical realism; Modern Platonism; Logicism; Transcendental idealism (before 1891); Metaphysical realism (after 1891); Foundationalism; Indirect realism; Redundancy theory of truth
Institutions	University of Jena
Notable students	Rudolf Carnap
Main interests	Philosophy of mathematics, mathematical logic, philosophy of language
Notable works	Begriffsschrift (1879); The Foundations of Arithmetic (1884); Basic Laws of Arithmetic (1893–1903)
Notable ideas	Analytic philosophy; Ancestral relation; Anti-psychologism; Basic law V; Concept and object; Context principle; Currying; Descriptivist theory of names; Frege's principle; Frege's puzzles; Frege's theorem; Fregean analysis; Frege–Church ontology; Frege–Geach problem; Frege–Russell logic; Function and Concept; Law of trichotomy; Logicism; Hume's principle; Mediated reference theory; Naive set theory; Named set theory; Predicate calculus; Propositional calculus; Principle of compositionality; Quantification theory; Redundancy theory of truth; Round square copula; Second-order logic; Sense and reference; Set-theoretic definition of natural numbers; Sortal; Third realm ;

Friedrich Ludwig Gottlob Frege (/ˈfreɪɡə/; German: [ˈɡɔtloːp ˈfreːɡə]; 8 November 1848 – 26 July 1925) was a German philosopher, logician, and mathematician. He was a mathematics professor at the University of Jena, and is understood by many to be the father of analytic philosophy, concentrating on the philosophy of language, logic, and mathematics. Though he was largely ignored during his lifetime, Giuseppe Peano (1858–1932), Bertrand Russell (1872–1970), and, to some extent, Ludwig Wittgenstein (1889–1951) introduced his work to later generations of philosophers. Frege is widely considered to be the greatest logician since Aristotle, and one of the most profound philosophers of mathematics ever.

His contributions include the development of modern logic in the Begriffsschrift and work in the foundations of mathematics. His book the Foundations of Arithmetic is the seminal text of the logicist project, and is cited by Michael Dummett as where to pinpoint the linguistic turn. His philosophical papers "On Sense and Reference" and "The Thought" are also widely cited. The former argues for two different types of meaning and descriptivism. In Foundations and "The Thought", Frege argues for Platonism against psychologism or formalism, concerning numbers and propositions respectively.

Gottlob Frege
Frege c. 1879
Born	8 November 1848 Wismar, Grand Duchy of Mecklenburg-Schwerin, German Confederation
Died	26 July 1925(1925-07-26) (aged 76) Bad Kleinen, Free State of Mecklenburg-Schwerin, German Reich

Education
Education	University of Göttingen (PhD, 1873) University of Jena (Dr. phil. hab., 1874)
Theses	On a Geometrical Representation of Imaginary Forms in a Plane (1873) Methods of Calculation based on an Extension of the Concept of Magnitude (1874)
Doctoral advisor	Ernst Christian Julius Schering (PhD advisor)
Other advisors	Rudolf Friedrich Alfred Clebsch
Philosophical work
Era	19th-century philosophy 20th-century philosophy
Region	Western philosophy
School	Analytic philosophy Linguistic turn Logical realism Modern Platonism Logicism Transcendental idealism (before 1891) Metaphysical realism (after 1891) Foundationalism Indirect realism Redundancy theory of truth
Institutions	University of Jena
Notable students	Rudolf Carnap
Main interests	Philosophy of mathematics, mathematical logic, philosophy of language
Notable works	Begriffsschrift (1879) The Foundations of Arithmetic (1884) Basic Laws of Arithmetic (1893–1903)
Notable ideas	Analytic philosophy Ancestral relation Anti-psychologism Basic law V Concept and object Context principle Currying Descriptivist theory of names Frege's principle Frege's puzzles Frege's theorem Fregean analysis Frege–Church ontology Frege–Geach problem Frege–Russell logic Function and Concept Law of trichotomy Logicism Hume's principle Mediated reference theory Naive set theory Named set theory Predicate calculus Propositional calculus Principle of compositionality Quantification theory Redundancy theory of truth Round square copula Second-order logic Sense and reference Set-theoretic definition of natural numbers Sortal Third realm