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Durham University

Department of Philosophy


Publication details for Dr Matthew Tugby

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

Author(s) from Durham


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.