Is indeterminate identity incoherent?


Authors
Richard Kimberly Heck
Brown University
Abstract
In "Counting and Indeterminate Identity", N. Ángel Pinillos develops an argument that there can be no cases of `Split Indeterminate Identity'. Such a case would be one in which it was indeterminate whether a=b and indeterminate whether a=c, but determinately true that b≠c. The interest of the argument lies, in part, in the fact that it appears to appeal to none of the controversial claims to which similar arguments due to Gareth Evans and Nathan Salmon appeal. I argue for two counter-claims. First, the formal argument fails to establish its conclusion, for essentially the same reason Evans's and Salmon's arguments fail to establish their conclusions. Second, the phenomena in which Pinillos is interested, which concern the cardinalities of sets of vague objects, manifest the existence of what Kit Fine called `penumbral connections', phenomena that the logics Pinillos considers are already known not to handle well.
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References found in this work BETA

Can There Be Vague Objects?Gareth Evans - 1978 - Analysis 38 (4):208.
Reference and Essence.John Tienson - 1981 - Journal of Symbolic Logic 49 (4):1417-1419.
Indeterminate Identity. [REVIEW]Lieven Decock - 2001 - Tijdschrift Voor Filosofie 63 (3):621-622.

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