Philosophical Quarterly 60 (240):471-486 (2010)

Authors
Franz Berto
University of St. Andrews
Abstract
Accounts of propositions as sets of possible worlds have been criticized for conflating distinct impossible propositions. In response to this problem, some have proposed to introduce impossible worlds to represent distinct impossibilities, endorsing the thesis that impossible worlds must be of the same kind; this has been called the parity thesis. I show that this thesis faces problems, and propose a hybrid account which rejects it: possible worlds are taken as concrete Lewisian worlds, and impossibilities are represented as set-theoretic constructions out of them. This hybrid account (1) distinguishes many intuitively distinct impossible propositions; (2) identifies impossible propositions with extensional constructions; (3) avoids resorting to primitive modality, at least so far as Lewisian modal realism does
Keywords Impossible Worlds  Hyperintensionality  Modal realism  Propositions  Ersatzism
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Reprint years 2013
DOI 10.1111/j.1467-9213.2009.627.x
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References found in this work BETA

Impossible Worlds: A Modest Approach.Daniel Nolan - 1997 - Notre Dame Journal of Formal Logic 38 (4):535-572.
Theories of Actuality.Robert Merrihew Adams - 1974 - Noûs 8 (3):211-231.
Possible Worlds.Robert Stalnaker - 1976 - Noûs 10 (1):65-75.
Beyond Possible Worlds.Takashi Yagisawa - 1988 - Philosophical Studies 53 (2):175 - 204.
Dialetheism.Francesco Berto, Graham Priest & Zach Weber - 2008 - Stanford Encyclopedia of Philosophy 2018 (2018).

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Citations of this work BETA

Impossible Worlds.Francesco Berto - 2013 - Stanford Encyclopedia of Philosophy (2013).
Existence as a Real Property.Francesco Berto - 2012 - Synthèse Library, Springer.
Impossible Worlds.Mark Jago - 2013 - Noûs 47 (3):713-728.
Impossible Worlds.Franz Berto & Mark Jago - 2013 - Oxford: Oxford University Press.

View all 24 citations / Add more citations

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Lycan on Lewis and Meinong.Peter J. King - 1993 - Proceedings of the Aristotelian Society 93:193 - 201.
Constructing Worlds.Mark Jago - 2012 - Synthese 189 (1):59-74.
Systems of Modal Logic for Impossible Worlds.Charles G. Morgan - 1973 - Inquiry: An Interdisciplinary Journal of Philosophy 16 (1-4):280 – 289.

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