David Malet Armstrong

David Malet Armstrong
Armstrong receiving his doctorate of letters (h.c.) at Nottingham University, UK on 13 December 2007
Born(1926-07-08)8 July 1926
Melbourne, Australia
Died13 May 2014(2014-05-13) (aged 87)
Sydney, Australia
Education
Alma materUniversity of Sydney
Academic advisorsJohn Anderson
Philosophical work
Era20th-century philosophy
RegionWestern philosophy
SchoolAnalytic philosophy
Australian realism
Immanent realism
Factualism
Perdurantism (four-dimensionalism)
Main interestsMetaphysics, philosophy of mind
Notable ideasInstantiation principle
Quidditism
Maximalist version of truthmaker theory

David Malet Armstrong AO FAHA (8 July 1926 – 13 May 2014), often D. M. Armstrong, was an Australian philosopher. He is well known for his work on metaphysics and the philosophy of mind, and for his defence of a factualist ontology, a functionalist theory of the mind, an externalist epistemology, and a necessitarian conception of the laws of nature.

Keith Campbell said that Armstrong's contributions to metaphysics and epistemology "helped to shape philosophy's agenda and terms of debate", and that Armstrong's work "always concerned to elaborate and defend a philosophy which is ontically economical, synoptic, and compatibly continuous with established results in the natural sciences".