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Carl Gustav Hempel
Carl Gustav Hempel.jpg
Born (1905-01-08)January 8, 1905
Died November 9, 1997(1997-11-09) (aged 92)
Education University of Göttingen
University of Berlin (PhD, 1934)
Heidelberg University
Era 20th-century philosophy
Region Western philosophy
School Analytic philosophy<
Berlin Circle
Logical behaviorism
Institutions University of Chicago
City College of New York
Yale University
Princeton University
Hebrew University
University of Pittsburgh
Thesis Beiträge zur logischen Analyse des Wahrscheinlichkeitsbegriffs (Contributions to the Logical Analysis of the Concept of Probability) (1934)
Doctoral advisors Hans Reichenbach, Wolfgang Köhler, Nicolai Hartmann
Other academic advisors Rudolf Carnap
Doctoral students
Other notable students Robert Stalnaker
Main interests
Notable ideas
  • Deductive-nomological model
  • Inductive-statistical model
  • Internal vs. bridge principles
  • Hempel's dilemma
  • Raven paradox
  • Explanandum and explanans

Carl Gustav "Peter" Hempel (born January 8, 1905 – died November 9, 1997) was a German philosopher and logician. He was a very important thinker in a movement called logical empiricism. This was a big part of the philosophy of science in the 20th century.

Hempel is famous for explaining the deductive-nomological model of scientific explanation. This model was seen as the main way to explain things in science during the 1950s and 1960s. He is also known for a puzzle called the raven paradox, sometimes called "Hempel's paradox."

Carl Hempel's Early Life and Studies

Carl Hempel studied mathematics, physics, and philosophy. He went to the University of Göttingen and later to the Humboldt-University of Berlin and Heidelberg University.

In Göttingen, he met a famous mathematician named David Hilbert. Hempel was very impressed by Hilbert's plan to build all of mathematics on strong logical rules.

After moving to Berlin, Hempel joined a meeting about scientific philosophy in 1929. There, he met Rudolf Carnap and became part of the Berlin Circle. This was a group of philosophers connected to the Vienna Circle.

In 1934, Hempel earned his PhD from the Humboldt-University of Berlin. His main supervisor was Hans Reichenbach. His paper was about probability theory. It was titled Contributions to the Logical Analysis of the Concept of Probability.

Carl Hempel's Career Journey

After finishing his PhD, Hempel had to leave Germany. The Nazi government was becoming very strict and unfair, especially towards Jewish people. Hempel's wife had Jewish family, so they moved to Belgium. A scientist named Paul Oppenheim helped him.

In 1937, Hempel moved to the United States. He started working at the University of Chicago as an assistant to Rudolf Carnap. He then taught at several other universities.

After retiring from Princeton, he taught at the Hebrew University of Jerusalem for a few years. Later, he became a professor at the University of Pittsburgh and taught there until 1985.

In 1989, the Philosophy Department at Princeton University honored him. They renamed their lecture series the 'Carl G. Hempel Lectures'. He was also a member of important groups like the American Academy of Arts and Sciences.

Carl Hempel's Ideas on Philosophy

Hempel preferred to call himself and other philosophers "logical empiricists." He didn't like the term "logical positivism." He felt that "positivism" suggested ideas about materialism that he didn't agree with.

He believed that some ideas, called metaphysics, were about things that couldn't be known. Hempel thought that these ideas couldn't be proven right or wrong by evidence.

Hempel also helped bring back the Deductive-nomological model of explanation in the 1940s. He wrote an important paper called "The function of general laws in history."

Carl Hempel's Legacy

In 2005, the City of Oranienburg, where Hempel was born, honored him. They named one of their streets "Carl-Gustav-Hempel-Straße" in his memory.

See also

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