Mechanism, truth, and Penrose's new argument

Journal of Philosophical Logic 32 (1):19-42 (2003)
Abstract
Sections 3.16 and 3.23 of Roger Penrose's Shadows of the mind (Oxford, Oxford University Press, 1994) contain a subtle and intriguing new argument against mechanism, the thesis that the human mind can be accurately modeled by a Turing machine. The argument, based on the incompleteness theorem, is designed to meet standard objections to the original Lucas-Penrose formulations. The new argument, however, seems to invoke an unrestricted truth predicate (and an unrestricted knowability predicate). If so, its premises are inconsistent. The usual ways of restricting the predicates either invalidate Penrose's reasoning or require presuppositions that the mechanist can reject
Keywords incompleteness  Lucas  mechanism  Penrose  truth
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Reprint years 2004
DOI 10.1023/A:1022863925321
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References found in this work BETA
Outline of a Theory of Truth.Saul A. Kripke - 1975 - Journal of Philosophy 72 (19):690-716.
Minds, Machines and Godel.John R. Lucas - 1961 - Philosophy 36 (April-July):112-127.

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Citations of this work BETA
Turing's Responses to Two Objections.Darren Abramson - 2008 - Minds and Machines 18 (2):147-167.
Remarks on Penrose's New Argument.Per Lindstrom - 2006 - Journal of Philosophical Logic 35 (3):231-237.
Hayek, Gödel, and the Case for Methodological Dualism.Ludwig van den Hauwe - 2011 - Journal of Economic Methodology 18 (4):387-407.

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