Dictionary of Human Evolution and Biology

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Popper, Karl Raimund

Austrian philosopher of science; member of the Vienna Circle (Der Wiener Kreis) of philosophers who originated logical positivism, although from the beginning Popper was critical of their central tenet, the verifiability principle. Popper substituted falsifiability in place of verifiability; this became the centerpiece of his theory of demarcation, of distinguishing between science and nonscience. Author of The Logic of Scientific Discovery (1959) and Objective Knowledge (1972).

See verisimilitude.

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