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David Lewis | |
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![]() Lewis in 1962, while at Swarthmore College | |
Born | David Kellogg Lewis September 28, 1941 |
Died | October 14, 2001 (aged 60) Princeton, New Jersey, U.S. |
Other names | Bruce Le Catt[9] |
Education | Swarthmore College (BA) Oxford University Harvard University (PhD) |
Spouse | Stephanie Lewis (m. 1965–2001) |
Era | 20th-century philosophy |
Region | Western philosophy |
School | Analytic Nominalism[1] Perdurantism[2] |
Institutions | Princeton University |
Doctoral advisor | Willard Van Orman Quine |
Other academic advisors | Donald Cary Williams[3] Iris Murdoch[4] |
Doctoral students | Robert Brandom Peter Railton J. David Velleman |
Main interests | Logic · Language · Metaphysics Epistemology · Ethics |
Notable ideas | Possible worlds · Modal realism · Counterfactuals · Counterpart theory · Principal principle · Humean supervenience · Lewis signaling game · The endurantism–perdurantism distinction Descriptive-causal theory of reference[5] · De se Qualitative vs quantitative parsimony[6] Ramsey–Lewis method Gunk[7] Ontological innocence[8] Centered world |
David Kellogg Lewis (September 28, 1941 – October 14, 2001) was an American philosopher. Lewis taught briefly at UCLA and then at Princeton University from 1970 until his death. He is closely associated with Australia, whose philosophical community he visited almost annually for more than 30 years.
Lewis made significant contributions in philosophy of mind, philosophy of probability, epistemology, philosophical logic, aesthetics, philosophy of mathematics, philosophy of time and philosophy of science. In most of these fields he is considered among the most important figures of recent decades. Lewis is most famous for his work in metaphysics, philosophy of language and semantics, in which his books On the Plurality of Worlds (1986) and Counterfactuals (1973) are considered classics. His works on the logic and semantics of counterfactual conditionals are broadly used by philosophers and linguists along with a competing account from Robert Stalnaker; together the Stalnaker–Lewis theory of counterfactuals has become perhaps the most pervasive and influential account of its type in the philosophical and linguistic literature. His metaphysics incorporated seminal contributions to quantified modal logic, the development of counterpart theory, counterfactual causation, and the position called "Humean supervenience". Most comprehensively in On the Plurality of Worlds, Lewis defended modal realism: the view that possible worlds exist as concrete entities in logical space, and that our world is one among many equally real possible ones.