The Many and the One: A Philosophical Study of Plural Logic

Oxford, England: Oxford University Press (2021)
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Plural expressions found in natural languages allow us to talk about many objects simultaneously. Plural logic — a logical system that takes plurals at face value — has seen a surge of interest in recent years. This book explores its broader significance for philosophy, logic, and linguistics. What can plural logic do for us? Are the bold claims made on its behalf correct? After introducing plural logic and its main applications, the book provides a systematic analysis of the relation between this logic and other theoretical frameworks such as set theory, mereology, higher-order logic, and modal logic. The applications of plural logic rely on two assumptions, namely that this logic is ontologically innocent and has great expressive power. These assumptions are shown to be problematic. The result is a more nuanced picture of plural logic's applications than has been given thus far. Questions about the correct logic of plurals play a central role in the final chapters, where traditional plural logic is rejected in favor of a "critical" alternative. The most striking feature of this alternative is that there is no universal plurality. This leads to a novel approach to the relation between the many and the one. In particular, critical plural logic paves the way for an account of sets capable of solving the set-theoretic paradoxes.

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Author Profiles

Salvatore Florio
University of Oslo
Øystein Linnebo
University of Oslo

Citations of this work

Against Cumulative Type Theory.Tim Button & Robert Trueman - 2022 - Review of Symbolic Logic 15 (4):907-49.
Ordinal Type Theory.Jan Plate - forthcoming - Inquiry: An Interdisciplinary Journal of Philosophy.
Plural quantification.Ø Linnebo - 2008 - Stanford Encyclopedia of Philosophy.
Parthood and Location.Raul Saucedo - 2011 - Oxford Studies in Metaphysics 6.
Pure Logic and Higher-order Metaphysics.Christopher Menzel - 2023 - In Peter Fritz & Nicholas Jones (eds.), Higher-Order Metaphysics. Oxford: Oxford University Press.

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References found in this work

Word and Object.Willard Van Orman Quine - 1960 - Cambridge, MA, USA: MIT Press.
Modal Logic as Metaphysics.Timothy Williamson - 2013 - Oxford, England: Oxford University Press.
Naming and Necessity.Saul Kripke - 1980 - Critica 17 (49):69-71.
Word and Object.Willard Van Orman Quine - 1960 - Les Etudes Philosophiques 17 (2):278-279.

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