Christopher Peacocke

in Being Known

Published in print March 1999 | ISBN: 9780198238607
Published online November 2003 | e-ISBN: 9780191598197 | DOI:

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There is a set of principles, the Principles of Possibility, that constrains whether a description picks out a genuinely possible world. To grasp the concept of metaphysical necessity is to have tacit knowledge of this set of Principles and to apply them in evaluating modal statements and thoughts. For a statement to be necessary is for it to hold in all descriptions that are not excluded as possible by the principles of possibility. This integrates the metaphysics and epistemology of necessity, without collapsing into mind‐dependence and without a commitment to modal realism. The treatment of the metaphysics validates the modal systems T and S4.

Keywords: metaphysical necessity; mind‐dependence; modal realism; modal semantics; necessity; possible worlds; Principles of Possibility

Chapter.  34762 words. 

Subjects: Metaphysics

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