In Michal Peliš (ed.), The Logica Yearbook 2007. Filosofia (2008)

Tuomas E. Tahko
University of Bristol
The purpose of this paper is to examine the status of logic from a metaphysical point of view – what is logic grounded in and what is its relationship with metaphysics. There are three general lines that we can take. 1) Logic and metaphysics are not continuous, neither discipline has no bearing on the other one. This seems to be a rather popular approach, at least implicitly, as philosophers often skip the question altogether and go about their business, be it logic or metaphysics. However, it is not a particularly plausible view and it is very hard to maintain consistently, as we will see. 2) Logic is prior to metaphysics and has metaphysical implications. The extreme example of this kind of approach is the Dummettian one, according to which metaphysical questions are reducible to the question of which logic to adopt. 3) Metaphysics is prior to logic, and your logic should be compatible with your metaphysics. This approach suggests an answer to the question of what logic is grounded in, namely, metaphysics. Here I will defend the third option.
Keywords status of logic  metalogic  foundations of logic  basis of logic  logic and metaphysics  law of non-contradiction
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References found in this work BETA

The Logical Basis of Metaphysics.Michael Dummett - 1991 - Harvard University Press.
Logical Pluralism.Jc Beall & Greg Restall - 2005 - Oxford, England: Oxford University Press.
Logical Pluralism.Jc Beall & Greg Restall - 2000 - Australasian Journal of Philosophy 78 (4):475 – 493.
Necessary Existents.Timothy Williamson - 2002 - In A. O'Hear (ed.), Logic, thought, and language. Cambridge University Press. pp. 233-251.

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What Makes Logical Truths True?Constantin C. Brîncuș - 2016 - Logos and Episteme 7 (3): 249-272.

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