Chapter

Essentialism in Modal Logic

Ruth Barcan Marcus

in Modalities

Published in print August 1995 | ISBN: 9780195096576
Published online November 2003 | e-ISBN: 9780199833412 | DOI: http://dx.doi.org/10.1093/0195096576.003.0003
 Essentialism in Modal Logic

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In this paper, an example of the kind of essentialist argument that is supposed to generate difficulties for quantified modal logic is shown to be invalid on one interpretation, and valid but unable to generate categorical necessities without the ad hoc addition of essentialist premises, on another. The paper specifies how attributes figure in quantified modal logic, and also gives a formal characterization of essential properties.

Keywords: essentialism; quantified modal logic; Quine

Chapter.  2141 words. 

Subjects: Philosophy

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