Salmón, Nathan (2018) A Paradox about Sets of Properties. [Preprint]
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Text (pre-publication manuscript)
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Abstract
A paradox about sets of properties is presented. The paradox, which invokes an impredicatively defined property, is formalized in a free third-order logic with lambda-abstraction, through a classically proof-theoretically valid deduction of a contradiction from a single premise to the effect that every property has a unit set. Something like a model is offered to establish that the premise is, although classically inconsistent, nevertheless consistent, so that the paradox discredits the logic employed. A resolution through the ramified theory of types is considered. Finally, a general scheme that generates a family of analogous paradoxes and a generally applicable resolution are proposed.
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Item Type: | Preprint | ||||||
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Additional Information: | To appear in Synthese (2021). | ||||||
Keywords: | Grelling's paradox; impredicative definition; lambda abstraction; ramified type theory; Russell's paradox; Russell-Myhill | ||||||
Subjects: | Specific Sciences > Mathematics > Logic Specific Sciences > Mathematics > Ontology Specific Sciences > Mathematics |
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Depositing User: | Prof. Nathan Salmón | ||||||
Date Deposited: | 04 Aug 2021 21:33 | ||||||
Last Modified: | 04 Aug 2021 21:33 | ||||||
Item ID: | 19404 | ||||||
DOI or Unique Handle: | SYNT-D-21-00022R2 | ||||||
Subjects: | Specific Sciences > Mathematics > Logic Specific Sciences > Mathematics > Ontology Specific Sciences > Mathematics |
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Date: | 2018 | ||||||
URI: | https://philsci-archive.pitt.edu/id/eprint/19404 |
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