Four-dimensionalism

Four-dimensionalism
Name	Four-dimensionalism
Era	Contemporary philosophy
Region	Western philosophy
Main interest	Metaphysics

Four-dimensionalism Four-dimensionalism is a metaphysical position about persistence and temporal extension that treats objects as extended in time as well as in space, proposing that entities have temporal parts and survive by having different temporal stages. It contrasts with alternative views of persistence and has been influential in debates involving identity, modal metaphysics, and the philosophy of time.

Introduction

Four-dimensionalism appears in discussions by Aristotle, René Descartes, Gottfried Wilhelm Leibniz, David Lewis, J. J. C. Smart, and D. H. Mellor about persistence, continuity, and ontology. It is often presented alongside discussions in works such as On the Soul, Meditations on First Philosophy, Monadology, Times Arrow and Archimedes' Point, and The Flow of Time. Debates over the doctrine draw on examples from thought experiments in Ship of Theseus, Grandfather paradox, and analyses by scholars working in institutions like University of Oxford, Princeton University, Massachusetts Institute of Technology, University of Cambridge, and Australian National University.

Ontological Basis and Key Concepts

The ontological commitments of the view are developed in responses to positions defended by Peter van Inwagen, Ted Sider, David Armstrong, G. E. Moore, and Willard Van Orman Quine. Key concepts include temporal parts, stages, four-dimensional worms, and perdurance as contrasted with endurance, discussed in relation to debates in The Journal of Philosophy, Mind (journal), and Philosophical Studies. The metaphysics appeals to analyses used in works like Naming and Necessity and engages with principles traceable to Principia Mathematica approaches to ontology. Discussions often reference doctrines defended by Immanuel Kant and critiqued by Friedrich Nietzsche in other contexts, and draw on methods used in the analytic tradition associated with Bertrand Russell, G. E. Moore, and Ludwig Wittgenstein.

Varieties and Related Theories

Different formulations appear in literature associated with David Lewis's modal realism, Ted Sider's stages view, G. E. Moore-inspired common-sense metaphysics, and positions examined by D. H. Mellor and A. N. Prior. Related theories include endurance theories defended by Peter van Inwagen and Trenton Merricks, stage theories articulated by Philippa Foot and Sydney Shoemaker, and combinations explored by E. J. Lowe and C. D. Broad. Influential comparisons occur with views in writings from Harvard University, Yale University, Stanford University, Columbia University, and University of Chicago.

Arguments For and Against

Proponents often cite explanatory virtues used by Occam's Razor-style methodology in works by William of Ockham and clarity arguments drawn from analytic practice exemplified by Gottlob Frege, Alfred Tarski, and Kurt Gödel. Supporters argue that four-dimensionalism handles puzzles like Ship of Theseus, temporary intrinsics, and modal counterpart theory as developed by David Lewis and responded to by Saul Kripke. Critics such as Peter van Inwagen, Ted Sider (in some defenses), Elizabeth Anscombe, and Nelson Goodman raise concerns about ontological inflation, parsimony debates in the style of Thomas Kuhn, and alleged counterintuitiveness highlighted in pamphlets associated with Philosophy Now and lecture series at Royal Institute of Philosophy.

Implications for Identity, Persistence, and Time

Applications touch debates in identity theory found in texts like Naming and Necessity and Identity and Necessity, and intersect with issues in the philosophy of time treated by J. J. C. Smart, Arthur Prior, M. K. Munitz, and P. F. Strawson. Four-dimensionalism reshapes criteria for personal identity discussed by John Locke, Derek Parfit, and Thomas Reid, influences accounts of temporal parts used in legal and ethical reasoning in contexts like judgments at International Court of Justice and analyses found in Philosophy and Public Affairs, and interacts with modal metaphysics in arguments present at conferences hosted by American Philosophical Association and British Academy.

Major Figures and Historical Development

Historical sources trace precursors to Aristotle and later to Leibniz and Immanuel Kant; modern proponents include David Lewis, Ted Sider, D. H. Mellor, E. J. Lowe, and Stewart Goetz. Critics and interlocutors include Peter van Inwagen, Trenton Merricks, Elizabeth Anscombe, Derek Parfit, and C. B. Martin. The development of the view is documented through publications appearing in Mind (journal), The Philosophical Review, Noûs, Analysis (journal), and books published by presses like Oxford University Press, Cambridge University Press, Princeton University Press, and Routledge.

Criticisms and Contemporary Debates

Ongoing debates involve scholars at University of Oxford, Princeton University, Australian National University, University of St Andrews, and King's College London addressing challenges from metaphysical nihilism, perdurantist alternatives, and hybrid accounts influenced by Modal Logic developments and modal realism controversies associated with David Lewis and critiques by Saul Kripke. Contemporary issues include relations to the philosophy of mind as discussed by Daniel Dennett, Jerry Fodor, Patricia Churchland, and John Searle; implications for temporal ontology debated in symposia held by Royal Institute of Philosophy and panels at meetings of the American Philosophical Association.

Category:Metaphysics