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Michael Dummett

1925–2011

A first way ina deliberate simplification – the portrait says more

To understand a statement is to know what would count as showing it true, so we should not assume that every statement is true or false regardless of whether we could ever find out.

Placement

Analytic Philosophy · Northern Europe · Language, Logic, Metaphysics

Oxford philosopher of language and Frege scholar: the dispute between realism and anti-realism is a dispute about truth – whether a statement can be true beyond our ability to recognise it as true. He also campaigned against racism in Britain.

Key ideas

  • Anti-realism
  • Meaning and use / manifestation
  • Intuitionistic logic
  • Frege interpretation

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Influence

Influenced by 2

  • Gottlob Frege

    influenced by

    Dummett read Frege as the founder of analytic philosophy, whose theory of sense makes the theory of meaning the foundation of philosophy (Frege: Philosophy of Language, 1973). M. Dummett, Frege: Philosophy of Language (1973); Origins of Analytical Philosophy (1993); SEP “Gottlob Frege”

    Evidence: also in InPhO · InPhO

    Gottlob Frege › 1848–1925

  • Ludwig Wittgenstein

    influenced by

    Dummett turned Wittgenstein’s idea that meaning is use into the demand that understanding be manifest in use, the basis of his anti-realism (1976; Truth and Other Enigmas, 1978). M. Dummett, “What Is a Theory of Meaning? (II)” (1976), in The Seas of Language (1993); Truth and Other Enigmas (1978); “Wittgenstein’s Philosophy of Mathematics”, Philosophical Review 68 (1959); SEP “Wittgenstein’s Philosophy of Mathematics”

    Evidence: AI draft

    Ludwig Wittgenstein › 1889–1951

Criticism

Criticizes 1

  • Donald Davidson

    criticised

    Dummett objected that Davidson’s truth-conditional theory is merely ‘modest’: it does not explain what knowledge of meaning consists in (‘What is a Theory of Meaning?’, 1975). M. Dummett, “What is a Theory of Meaning?”, in S. Guttenplan (ed.), Mind and Language (1975); “What is a Theory of Meaning? (II)” (1976)

    Evidence: AI draft

    Donald Davidson › 1917–2003

Works

  • 1959Truth

    The meaning of a statement cannot be given by truth conditions that might hold beyond any possible recognition – the starting point of anti-realism.

  • Frege read as the founder of analytic philosophy: the theory of meaning is the foundation of all philosophy.

Position

Dummett read Frege as the founder of analytic philosophy, whose central lesson is that the theory of meaning is the foundation of philosophy; his Frege: Philosophy of Language (1973) made this reading influential. In “Truth” (1959) and later papers he argued that many old metaphysical disputes – about the past, about other minds, about mathematical objects – are really disputes about meaning. The realist holds that every statement is determinately true or false, whether or not we could ever know which; the anti-realist ties meaning to the conditions under which we could recognise a statement as true. Following Wittgenstein’s idea that meaning is use, Dummett held that knowledge of meaning must be manifested in how speakers use sentences, and no one can manifest a grasp of truth conditions that transcend all possible recognition. If this is right, the law of excluded middle cannot be assumed everywhere, and intuitionistic logic, which he studied in Elements of Intuitionism (1977), becomes the logic of an anti-realist. He criticised Davidson’s truth-conditional theory of meaning on these grounds. His books on immigration and on voting theory applied the same insistence on clear argument to politics.

Life & context

Michael Dummett was born in London in 1925 and educated at Winchester College. He served in the army from 1943 to 1947, in the Royal Artillery and then in the Intelligence Corps in India and Malaya. In 1944 he became a Roman Catholic. He studied philosophy, politics and economics at Christ Church, Oxford, and in 1950 was elected a fellow of All Souls College. From the mid-1960s he and his wife Ann worked against racism and for the rights of immigrants in Britain, and he set his philosophy aside for some years for this work. From 1979 to 1992 he was Wykeham Professor of Logic at Oxford. He also wrote on voting systems and on the history of tarot cards. He was knighted in 1999 for his contributions to philosophy and to the cause of racial justice and died in Oxford in 2011.

Further main works

  • Elements of Intuitionism (1977)
  • The Logical Basis of Metaphysics (1991)
  • Origins of Analytical Philosophy (1993)
  • On Immigration and Refugees (2001)

Sources: Wikipedia · Wikidata

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