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The Theory of Being and the Argument for Forms in Plato’s Sophist

Leigh, Fiona; (2024) The Theory of Being and the Argument for Forms in Plato’s Sophist. Phronesis: A Journal for Ancient Philosophy , 69 (4) pp. 402-438. 10.1163/15685284-bja10096. Green open access

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Abstract

This paper argues for two claims. First, that in the Sophist a metaphysical theory of being is constructed from the ground up, largely on the basis of a claim treated as an axiomatic principle, the ‘dunamis proposal’ (247d–e), which, I will argue, ought to be understood as Plato’s own definition of being. Second, once its core is in place, the theory is put to use to provide dialectical arguments against proponents of alternative metaphysical theories for the existence of various entities in the ontology. These include—notably—an argument for the existence of Forms.

Type: Article
Title: The Theory of Being and the Argument for Forms in Plato’s Sophist
Open access status: An open access version is available from UCL Discovery
DOI: 10.1163/15685284-bja10096
Publisher version: https://doi.org/10.1163/15685284-bja10096
Language: English
Additional information: This is an open access article distributed under the terms of the CC BY 4.0 license, https://creativecommons.org/licenses/by/4.0/.
Keywords: Sophist; being; Forms; theory; dialectic; power
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of Arts and Humanities
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of Arts and Humanities > Dept of Philosophy
URI: https://discovery.ucl.ac.uk/id/eprint/10194417
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