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The Alien Paradox

Tugby, Matthew

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Platonism delivers a theory of possibility that is distinct from both Lewisian modal realism and ersatz modal theories. By putting the topic of alien properties at centre stage in our modal theorizing, a strong preliminary case for platonism can be made. A puzzle about alien properties is created by modern truthmaker theory and some plausible assumptions about properties and existence. But this puzzle is one that platonism is able to solve in a simple and conservative way.


Tugby, M. (2015). The Alien Paradox. Analysis, 75(1), 28-37.

Journal Article Type Article
Acceptance Date Oct 30, 2014
Online Publication Date Dec 1, 2014
Publication Date Jan 1, 2015
Deposit Date Jan 8, 2015
Publicly Available Date Aug 3, 2015
Journal Analysis
Print ISSN 0003-2638
Electronic ISSN 1467-8284
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 75
Issue 1
Pages 28-37
Keywords Platonism, Possibility, Alien properties, Truthmaking.
Public URL


Accepted Journal Article (86 Kb)

Copyright Statement
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Analysis following peer review. The version of record Tugby, Matthew (2015) 'The alien paradox.', Analysis., 75 (1). pp. 28-37 is available online at:

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