The Discovery that Phosphorus is Hesperus: a Follow-up to Kripke on the Necessity of Identity

Analysis and Metaphysics 16:52-69 (2017)
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It was an empirical discovery that Phosphorus is Hesperus. According to Kripke, this was also the discovery of a necessary fact. Now, given Kripke’s theory of direct reference one could wonder what kind of discovery this is. For we already knew Phosphorus/Hesperus, and we also knew that any entity is, necessarily, identical to itself. So what is it that was discovered? I want to show that there is more to this widely known case than what usual readings, and critics, reveal; and I want to show this under the Kripkean pattern that what was discovered is the plain fact of identity that Phosphorus is, and necessarily is, Hesperus. Moreover, I will show how both Kripkean theses, the necessity of identity and the direct theory of reference, should not be kept apart to understand the kind of discovery this is. In particular, understanding the kind of discovery we made will help us see how intuition is displayed in metaphysics, and how metaphysical impossibilities, and metaphysical modality in general, can be discerned by reason and separated from other modalities. The study of this discovery will help us see, in a line, how identity belongs to the inner and most profound structure of reality and to the most profound structure of cognition and language.



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Author's Profile

M. J. Garcia-Encinas
University of Granada

Citations of this work

Facts of identity.M. J. García-Encinas - 2022 - Inquiry: An Interdisciplinary Journal of Philosophy.

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References found in this work

Individuals: An Essay in Descriptive Metaphysics.Peter Strawson - 1959 - London, England: Routledge. Edited by Wenfang Wang.
Naming and Necessity.Saul Kripke - 1980 - Philosophy 56 (217):431-433.
Individuals: An Essay in Descriptive Metaphysics.Peter Frederick Strawson - 1959 - London, England: Routledge. Edited by Wenfang Wang.
Naming and Necessity.S. Kripke - 1972 - Tijdschrift Voor Filosofie 45 (4):665-666.

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