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Hans Reichenbach

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Hans Reichenbach
Born(1891-09-26)September 26, 1891
Hamburg, German Empire
DiedApril 9, 1953(1953-04-09) (aged 61)
Los Angeles, California, U.S.
Alma materHFT Stuttgart
University of Berlin
University of Erlangen
University of Göttingen
University of Munich
Era20th-century philosophy
RegionWestern Philosophy
SchoolAnalytic
Logical empiricism
Main interests
Philosophy of science
Notable ideas
Philosophical implications of the theory of relativity, philosophical foundations of quantum mechanics

Hans Reichenbach (September 26, 1891 – April 9, 1953) was a leading philosopher of science, educator, and proponent of logical empiricism. He was influential in the areas of science, education, and of logical empiricism. He founded the Gesellschaft für empirische Philosophie (Society for Empirical Philosophy) in Berlin in 1928, also known as the “Berlin Circle.” Carl Gustav Hempel, Richard von Mises, David Hilbert and Kurt Grelling all became members of the Berlin Circle. He authored The Rise of Scientific Philosophy. In 1930, Reichenbach and Rudolf Carnap became editors of the journal Erkenntnis (Knowledge). He also made lasting contributions to the study of empiricism based on a theory of probability; the logic and the philosophy of mathematics; space, time, and relativity theory; analysis of probabilistic reasoning; and quantum mechanics.[1]

Life and work

Academic genealogy
Notable teachers
Notable students

After completing secondary school in Hamburg, Hans studied civil engineering at the Hochschule für Technik Stuttgart, and physics, mathematics and philosophy at various universities, including Berlin, Erlangen, Göttingen and Munich. Among his teachers were Ernst Cassirer, David Hilbert, Max Planck, Max Born and Arnold Sommerfeld. Reichenbach was active in youth movements and student organizations, and published articles about the university reform, the freedom of research, and against anti-Semitic infiltrations in student organizations. His older brother Bernhard Reichenbach shared in this activism and went on to become a member of the Communist Workers' Party of Germany, representing this organisation on the Executive Committee of the Communist International. He also worked with Alexander Schwab at this time.

Hans wrote the Platform of the Socialist Student Party Berlin which was published in 1918. The party had remained clandestine until the November Revolution when it was formally founded with Hans as Chairman.

Reichenbach received a degree in philosophy from the University of Erlangen in 1915 and his Dr.phil. dissertation on the theory of probability, titled Der Begriff der Wahrscheinlichkeit für die mathematische Darstellung der Wirklichkeit (The Concept of Probability for the Mathematical Representation of Reality) and supervised by Paul Hensel and Max Noether, was published in 1916. Reichenbach served during World War I on the Russian front, in the German army radio troops. In 1917 he was removed from active duty, due to an illness, and returned in Berlin. While working as a physicist and engineer, Reichenbach attended Albert Einstein's lectures on the theory of relativity in Berlin from 1917 to 1920.

In 1920 Reichenbach began teaching at the Technische Hochschule at Stuttgart as Privatdozent. In the same year, he published his first book on the philosophical implications of the theory of relativity, The Theory of Relativity and A Priori Knowledge, which criticized the Kantian notion of synthetic a priori. He subsequently published Axiomatization of the Theory of Relativity (1924), From Copernicus to Einstein (1927) and The Philosophy of Space and Time (1928), the last stating the logical positivist view on the theory of relativity.

In 1926, with the help of Albert Einstein, Max Planck and Max von Laue, Reichenbach became assistant professor in the physics department of Humboldt University of Berlin. He gained notice for his methods of teaching, as he was easily approached and his courses were open to discussion and debate. This was highly unusual at the time, although the practice is nowadays a common one.

In 1928, Reichenbach founded the so-called "Berlin Circle" (German: Die Gesellschaft für empirische Philosophie; Template:Lang-en). Among its members were Carl Gustav Hempel, Richard von Mises, David Hilbert and Kurt Grelling. The Vienna Circle manifesto lists 30 of Reichenbach's publications in a bibliography of closely related authors. In 1930 he and Rudolf Carnap began editing the journal Erkenntnis ("Knowledge").

When Adolf Hitler became Chancellor of Germany in 1933, Reichenbach was immediately dismissed from his appointment at the University of Berlin under the government's so called "Race Laws" due to his Jewish ancestry. Reichenbach himself did not practise Judaism, and his mother was a German Protestant, but he nevertheless suffered problems. He thereupon emigrated to Turkey, where he headed the Department of Philosophy at the University of Istanbul. He introduced interdisciplinary seminars and courses on scientific subjects, and in 1935 he published The Theory of Probability.

In 1938, with the help of Charles W. Morris, Reichenbach moved to the United States to take up a professorship at the University of California, Los Angeles in its Philosophy Department. His work on the philosophical foundations of quantum mechanics was published in 1944, followed by Elements of Symbolic Logic in 1947, and The Rise of Scientific Philosophy (his most popular book[2]) in 1951.

Reichenbach helped establish UCLA as a leading philosophy department in the United States in the post-war period. Carl Hempel, Hilary Putnam, and Wesley Salmon are perhaps his most prominent students.

Reichenbach died in Los Angeles on April 9, 1953, while working on problems in the philosophy of time and on the nature of scientific laws. As part of this he proposed a three part model of time in language, involving speech time, event time and - critically - reference time, which has been used by linguists since for describing tenses.[3] This work resulted in two books published posthumously: The Direction of Time and Nomological Statements and Admissible Operations.

Primary sources

Hans Reichenbach manuscripts, photographs, lectures, correspondence, drawings and other related materials are maintained by Archives Service Center, University Library System, University of Pittsburgh.[4] Much of the content has been digitized. Some more notable content includes:

  • Corresondence to Nagel, 1934-1938[5]
  • Philosophy Congress[6]
  • Responses to Questionnaire[7]
  • Weyl's Extension of the Riemannian Concept of Space, Appendix[8]

Selected publications

  • 1916. Der Begriff der Wahrscheinlichkeit für die mathematische Darstellung der Wirklichkeit. Ph.D. dissertation, Erlangen.
  • 1920. Relativitätstheorie und Erkenntnis apriori. English translation: 1965. The theory of relativity and a priori knowledge. University of California Press.
  • 1922. "Der gegenwärtige Stand der Relativitätsdiskussion." English translation: "The present state of the discussion on relativity" in Reichenbach (1959).
  • 1924. Axiomatik der relativistischen Raum-Zeit-Lehre. English translation: 1969. Axiomatization of the theory of relativity. University of California Press.
  • 1924. "Die Bewegungslehre bei Newton, Leibniz und Huyghens." English translation: "The theory of motion according to Newton, Leibniz, and Huyghens" in Reichenbach (1959).
  • 1927. Von Kopernikus bis Einstein. Der Wandel unseres Weltbildes. English translation: 1942, From Copernicus to Einstein. Alliance Book Co.
  • 1928. Philosophie der Raum-Zeit-Lehre. English translation: Maria Reichenbach, 1957, The Philosophy of Space and Time. Dover. ISBN 0-486-60443-8
  • 1930. Atom und Kosmos. Das physikalische Weltbild der Gegenwart. English translation: 1932, Atom and cosmos: the world of modern physics. G. Allen & Unwin, ltd.
  • 1931. "Ziele und Wege der heutigen Naturphilosophie." English translation: "Aims and methods of modern philosophy of nature" in Reichenbach (1959).
  • 1935. Wahrscheinlichkeitslehre : eine Untersuchung über die logischen und mathematischen Grundlagen der Wahrscheinlichkeitsrechnung. English translation: 1949, The theory of probability, an inquiry into the logical and mathematical foundations of the calculus of probability. University of California Press.
  • 1938. Experience and prediction: an analysis of the foundations and the structure of knowledge. University of Chicago Press.
  • 1942. From Copernicus to Einstein Dover 1980: ISBN 0-486-23940-3
  • 1944. Philosophic Foundations of Quantum Mechanics. University of California Press. Dover 1998: ISBN 0-486-40459-5
  • 1947. Elements of Symbolic Logic. Macmillan Co. Dover 1980: ISBN 0-486-24004-5
  • 1948. "Philosophy and physics" in Faculty research lectures, 1946. University of California Press.
  • 1949. "The philosophical significance of the theory of relativity" in Schilpp, P. A., ed., Albert Einstein: philosopher-scientist. Evanston : The Library of Living Philosophers.
  • 1951. The Rise of Scientific Philosophy. University of California Press. ISBN 978-0-520-01055-0
  • 1954. Nomological statements and admissible operations. North Holland.
  • 1956. The Direction of Time. University of California Press. Dover 1971: ISBN 0-486-40926-0
  • 1959. Modern philosophy of science: Selected essays by Hans Reichenbach. Routledge & Kegan Paul. Greenwood Press 1981: ISBN 0-313-23274-1
  • 1978. Selected writings, 1909-1953: with a selection of biographical and autobiographical sketches (Vienna circle collection). Dordrecht: Reidel. Springer paperback vol 1: ISBN 90-277-0292-6
  • 1979. Hans Reichenbach, logical empiricist (Synthese library). Dordrecht : Reidel.
  • 1991. Erkenntnis Orientated: A Centennial volume for Rudolf Carnap and Hans Reichenbach. Kluwer. Springer 2003: ISBN 0-7923-1408-5
  • 1991. Logic, language, and the structure of scientific theories : proceedings of the Carnap-Reichenbach centennial, University of Konstanz, 21–24 May 1991. University of Pittsburgh Press.

See also

References

  1. ^ "Guides to Archives and Manuscript Collections at the University of Pittsburgh Library System". Archives Service Center, University Library System, University of Pittsburgh. {{cite web}}: |access-date= requires |url= (help); Missing or empty |url= (help)
  2. ^ [1]
  3. ^ Derczynski, L; Gaizauskas, R (2013). "Empirical Validation of Reichenbach's Tense Framework". Proceedings of the International Conference on Computational Semantics.
  4. ^ "Guides to Archives and Manuscript Collections at the University of Pittsburgh Library System". {{cite web}}: |access-date= requires |url= (help); Missing or empty |url= (help)
  5. ^ "Philipp Frank Correspondence" (PDF). Archives Service Center, University Library System, University of Pittsburgh. Retrieved 2015-12-01.
  6. ^ "Philosophy Congress" (PDF). Archives Service Center, University Library System, University of Pittsburgh. Retrieved 2015-12-01.
  7. ^ "Responses to Questionnaire" (PDF). Archives Service Center, University Library System, University of Pittsburgh. Retrieved 2015-12-01.
  8. ^ "Weyl's Extension of the Riemannian Concept of Space and the Geometrical Interpretation of Electricity" (PDF). Archives Service Center, University Library System, University of Pittsburgh. Retrieved 2015-12-01.

Sources

  • Grünbaum, A., 1963, Philosophical Problems of Space and Time. Chpt. 3.
  • Sandner, Günther, The Berlin Group in the Making: Politics and Philosophy in the Early Works of Hans Reichenbach and Kurt Grelling. To appear in the Proceedings of 10th International Congress of the International Society for the History of Philosophy of Science (HOPOS), Ghent, July 2014. Abstract
  • Carl Hempel, 1991, Hans Reichenbach remembered, Erkenntnis 35: 5-10.
  • Wesley Salmon, 1977, "The philosophy of Hans Reichenbach," Synthese 34: 5-88.
  • Wesley Salmon, 1991, "Hans Reichenbach's vindication of induction," Erkenntnis 35: 99-122.
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