Nicod's criterion
A condition governing the confirmation of a general hypothesis by particular pieces of evidence, proposed by the French philosopher Jean Nicod (1893–1924) in his Foundations of Geometry and Induction (1930). It requires that an instance of a generalization that all As are B provides a positive, confirming piece of evidence for the generalization; evidence of something that is neither A nor B is irrelevant to it, as is evidence of something that is B but not A. The principle is put under pressure by Hempel's paradox, which apparently yields circumstances in which something that is neither A nor B may confirm the generalization.

Philosophy dictionary. . 2011.

Look at other dictionaries:

  • Jean Nicod — Not to be confused with the French diplomat and scholar Jean Nicot. Jean George Pierre Nicod (c. 1893 16 February 1924) was a French philosopher and logician. In his best known work, he showed that the classical propositional calculus could be… …   Wikipedia

  • Hempel's paradox — The principle of induction by enumeration allows a suitable generalization to be confirmed by its instances. Thus observation of black ravens should confirm the generalization that all ravens are black. It is also clear that if evidence confirms… …   Philosophy dictionary

  • Raven paradox — The Raven paradox, also known as Hempel s paradox or Hempel s ravens is a paradox proposed by the German logician Carl Gustav Hempel in the 1940s to illustrate a problem where inductive logic violates intuition. It reveals the problem of… …   Wikipedia

  • Jerry Fodor — Jerry Alan Fodor Full name Jerry Alan Fodor Born 1935 New York City, New York Era 20th / 21st century philosophy Region …   Wikipedia

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