In philosophy, verisimilitude (or truthlikeness) is the notion that some propositions are closer to being true than other propositions. The problem of verisimilitude is the problem of articulating what it takes for one false theory to be closer to the truth than another false theory.[1]
This problem was central to the philosophy of Karl Popper, largely because Popper was among the first to affirm that truth is the aim of scientific inquiry while acknowledging that most of the greatest scientific theories in the history of science are, strictly speaking, false. If this long string of purportedly false theories is to constitute progress with respect to the goal of truth, then it must be at least possible for one false theory to be closer to the truth than others.
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Transcription
Karl Popper
Popper's formal definition of verisimilitude was challenged since 1974 by Pavel Tichý,[2][3] John Henry Harris,[4] and David Miller,[5] who argued that Popper's definition has an unintended consequence: that no false theory can be closer to the truth than another. Popper himself stated: "I accepted the criticism of my definition within minutes of its presentation, wondering why I had not seen the mistake before."[6] This result gave rise to a search for an account of verisimilitude that did not deem progress towards the truth an impossibility.
Post-Popperian theories
Theories proposed by David Miller and by Theo Kuipers build on Popper's approach, guided by the notion that truthlikeness is a function of a truth factor and a content factor. Others (e.g. those advanced by Gerhard Schurz in collaboration with Paul Weingartner, by Mortensen, and by Ken Gemes) are also inspired by Popper's approach but locate what they believe to be the error of Popper's proposal in his overly generous notion of content, or consequence, proposing instead that the consequences that contribute to closeness to truth must be, in a technical sense, "relevant". A different approach (already proposed by Tichý and Risto Hilpinen and developed especially by Ilkka Niiniluoto and Graham Oddie) takes the "likeness" in truthlikeness literally, holding that a proposition's likeness to the truth is a function of the overall likeness to the actual world of the possible worlds in which the proposition would be true. An attempt to use the notion of point-free metric space is proposed by Giangiacomo Gerla.[7] There is currently a debate about whether or to what extent these different approaches to the concept are compatible.[8][9][10]
See also
References
- ^ "Truthlikeness, Stanford Encyclopedia of Philosophy". Retrieved 2019-10-11.
- ^ Pavel Tichý (June 1974). "On Popper's Definitions of Verisimilitude". The British Journal for the Philosophy of Science. 25 (2). Oxford University Press: 155–160. doi:10.1093/bjps/25.2.155. JSTOR 686819.
- ^ Pavel Tichý (March 1976). "Verisimilitude Redefined". The British Journal for the Philosophy of Science. 27 (1): 25–42. doi:10.1093/bjps/27.1.25. JSTOR 686376.
- ^ John H. Harris (June 1974). "Popper's Definitions of 'Verisimilitude'". The British Journal for the Philosophy of Science. 25 (2): 160–166. doi:10.1093/bjps/25.2.160. JSTOR 686820.
- ^ David Miller (June 1974). "Popper's Qualitative Theory of Verisimilitude". The British Journal for the Philosophy of Science. 25 (2): 166–177. doi:10.1093/bjps/25.2.166. JSTOR 686821.
- ^ Karl Popper (2013) [1983]. W. W. Bartley III (ed.). Realism and the Aim of Science. From the Postscript to the Logic of Scientific Discovery. Abingdon-on-Thames: Routledge. p. xxxvi. ISBN 978-1-1358-5895-7.
- ^ Oddie, Graham (2016). Truthlikeness. Metaphysics Research Lab, Stanford University.
{{cite book}}:|work=ignored (help) - ^ Zwart S. D., Franssen M. (2007). "An impossibility theorem for verisimilitude". Synthese. 158 (1): 75–92. doi:10.1007/s11229-006-9051-y. S2CID 28812992.
- ^ Oddie Graham (2013). "The content, consequence and likeness approaches to verisimilitude: compatibility, trivialization, and underdetermination". Synthese. 190 (9): 1647–1687. doi:10.1007/s11229-011-9930-8. S2CID 15527839.
- ^ Gerla G (2007). "Point free geometry and verisimilitude of theories". Journal of Philosophical Logic. 36 (6): 707–733. doi:10.1007/s10992-007-9059-x. S2CID 29922810.
This page was last edited on 6 February 2024, at 01:16