Carl Gustav Hempel

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Carl Gustav Hempel
Carl Gustav Hempel.jpg
Born (1905-01-08)January 8, 1905
Oranienburg, German Empire
Died Script error: The function "death_date_and_age" does not exist.
Princeton, New Jersey, U.S.
Era 20th-century philosophy
Region Western philosophy
School Analytic philosophy
Berlin Circle
Logical behaviorism[1]
Institutions University of Chicago
City College of New York
Yale University
Princeton University
Hebrew University
University of Pittsburgh
Main interests
Notable ideas

Carl Gustav "Peter" Hempel (8 January 1905 – 9 November 1997) was a German writer, philosopher, logician, and epistemologist. He was a major figure in logical empiricism, a 20th-century movement in the philosophy of science. He is especially well known for his articulation of the deductive-nomological model of scientific explanation, which was considered the "standard model" of scientific explanation during the 1950s and 1960s. He is also known for the raven paradox (also known as "Hempel's paradox").[5]


Hempel studied mathematics, physics and philosophy at the University of Göttingen and subsequently at the University of Berlin and the Heidelberg University. In Göttingen, he encountered David Hilbert and was impressed by his program attempting to base all mathematics on solid logical foundations derived from a limited number of axioms.

After moving to Berlin, Hempel participated in a congress on scientific philosophy in 1929 where he met Rudolf Carnap and became involved in the Berlin Circle of philosophers associated with the Vienna Circle. In 1934, he received his doctoral degree from the University of Berlin with a dissertation on probability theory, titled Beiträge zur logischen Analyse des Wahrscheinlichkeitsbegriffs (Contributions to the Logical Analysis of the Concept of Probability). Hans Reichenbach was Hempel's main doctoral supervisor, but after Reichenbach lost his philosophy chair in Berlin in 1933, Wolfgang Köhler and Nicolai Hartmann became the official supervisors.[6]


Within a year of completing his doctorate, the increasingly repressive and anti-semitic Nazi regime in Germany had prompted Hempel to emigrate to Belgium as his wife was of Jewish ancestry.[7] In this he was aided by the scientist Paul Oppenheim, with whom he co-authored the book Der Typusbegriff im Lichte der neuen Logik on typology and logic in 1936. In 1937, Hempel emigrated to the United States, where he accepted a position as Carnap's assistant[8] at the University of Chicago. He later held positions at the City College of New York (1939–1948), Yale University (1948–1955) and Princeton University, where he taught alongside Thomas Kuhn and remained until made emeritus in 1973. Between 1974 and 1976, he was an emeritus at the Hebrew University in Jerusalem before becoming University Professor of Philosophy at the University of Pittsburgh in 1977 and teaching there until 1985. In 1989 the Department of Philosophy at Princeton University renamed its Three Lecture Series the 'Carl G. Hempel Lectures' in his honor.[9]

Philosophical views

Hempel never embraced the term "logical positivism" as an accurate description of the Vienna Circle and Berlin Group, preferring to describe those philosophers, including himself, as "logical empiricists." He believed that the term "positivism," with its roots in the materialism of Auguste Comte, implied a metaphysics that empiricists were not obliged to embrace. He regarded Ludwig Wittgenstein as a philosopher with a genius for stating philosophical insights in striking and memorable language, but believed that he, or at least the Wittgenstein of the Tractatus, made claims that could only be supported by recourse to metaphysics. To Hempel, metaphysics involved claims to know things which were not knowable; that is, metaphysical hypotheses were incapable of confirmation or disconfirmation by evidence.


In 2005, the City of Oranienburg, Hempel's birthplace, renamed one of its streets "Carl-Gustav-Hempel-Straße" in his memory.


Principal works

Essay collections



  1. "Behaviorism". Stanford Encyclopedia of Philosophy.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. Gandjour A, Lauterbach KW, "Inductive reasoning in medicine: lessons from Carl Gustav Hempel's 'inductive-statistical' model", J Eval Clin Pract, 2003, 9(2):161–9.
  3. "Theories in Science". Retrieved 17 December 2021.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  4. 4.0 4.1 Carl Hempel (Stanford Encyclopedia of Philosophy)
  5. Fetzer, James (17 December 2021). Zalta, Edward N. (ed.). The Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, Stanford University. Retrieved 17 December 2021 – via Stanford Encyclopedia of Philosophy.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  6. Hempel, Carl G. (13 January 2000). Jeffrey, Richard (ed.). Selected Philosophical Essays. Cambridge University Press. p. viii. doi:10.1017/cbo9780511815157. ISBN 978-0-521-62475-6.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  7. "Carl Hempel "Scientific Inquiry: Invention and Test"". First Philosophy: Fundamental Problems and Readings in Philosophy, Volume 2 (2nd ed.). Peterborough, Ontario: Broadview Press. p. 206. ISBN 978-1-55111-973-1.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  8. Hempel, Carl. "Carl Gustav Hempel's Papers". Special Collections Department, University of Pittsburgh. Retrieved 2013-09-17.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  9. "Carl G. Hempel | Philosophy". Retrieved 17 December 2021.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  10. Hempel, Carl G. (15 January 1942). "The Function of General Laws in History". The Journal of Philosophy. Philosophy Documentation Center. 39 (2): 35–48. doi:10.2307/2017635. ISSN 0022-362X. JSTOR 2017635.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  11. Hempel, Carl G. (1945). "Studies in the Logic of Confirmation". Mind. Oxford University Press (OUP). LIV (213): 1–26. doi:10.1093/mind/liv.213.1. ISSN 0026-4423.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  12. Hempel, Carl G. (1980). "1. The Logical Analysis of Psychology". The Language and Thought Series. Cambridge, MA and London, England: Harvard University Press. doi:10.4159/harvard.9780674594623.c3. ISBN 978-0-674-59462-3.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>

Further reading

  • Holt, Jim, "Positive Thinking" (review of Karl Sigmund, Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science, Basic Books, 449 pp.), The New York Review of Books, vol. LXIV, no. 20 (21 December 2017), pp. 74–76.

External links