Theories of Abstract Objects without Ad Hoc Restriction

Erkenntnis 74 (1):1-15 (2011)
The ideas of fixed points (Kripke in Recent essays on truth and the liar paradox. Clarendon Press, London, pp 53–81, 1975; Martin and Woodruff in Recent essays on truth and the liar paradox. Clarendon Press, London, pp 47–51, 1984) and revision sequences (Gupta and Belnap in The revision theory of truth. MIT, London, 1993; Gupta in The Blackwell guide to philosophical logic. Blackwell, London, pp 90–114, 2001) have been exploited to provide solutions to the semantic paradox and have achieved admirable success. This happy situation naturally encourages one to look for other philosophical areas of their further applications where paradoxical results seem to follow from intuitively acceptable principles. In this paper, I propose to extend the use of these ideas to give two new treatments of abstract objects. Sections 1 and 2 below check several abstractionist theories and their main defects. Section 3 shows how the two ideas can be applied to generate consistent theories of abstract objects without any ad hoc restriction on any principle.
Keywords Philosophy   Logic   Ethics   Ontology   Epistemology   Philosophy
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DOI 10.1007/s10670-010-9260-0
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References found in this work BETA
John Hawthorne (2003). Identity. In Michael J. Loux & Dean W. Zimmerman (eds.), The Oxford Handbook of Metaphysics. Oxford University Press. pp. 99--130.
Peter van Inwagen (1983). Fiction and Metaphysics. Philosophy and Literature 7 (1):67-77.

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