European Journal of Analytic Philosophy 14 (2):5-10 (2018)
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Abstract |
I show that intuitive and logical considerations do not justify introducing Leibniz’s Law of the Indiscernibility of Identicals in more than a limited form, as applying to atomic formulas. Once this is accepted, it follows that Leibniz’s Law generalises to all formulas of the first-order Predicate Calculus but not to modal formulas. Among other things, identity turns out to be logically contingent.
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Keywords | Leibniz’s Law indiscernibility of identicals identity necessity contingency |
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Reprint years | 2018 |
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DOI | 10.31820/ejap.14.2.1 |
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References found in this work BETA
A New Introduction to Modal Logic.Paolo Crivelli, Timothy Williamson, G. E. Hughes & M. J. Cresswell - 1998 - Philosophical Review 107 (3):471.
[Review of Essay] "Reference and Modality" by W.V.O. Quine. [REVIEW]John Kemeny - 1954 - Journal of Symbolic Logic 19 (2):137-138.
Modal Logic for Philosophers.James W. Garson - 2006 - Cambridge and New York: Cambridge University Press.
View all 13 references / Add more references
Citations of this work BETA
Truth and Proof Without Models: A Development and Justification of the Truth-Valuational Approach.Hanoch Ben-Yami - manuscript
Must identity be necessary? (in Croatian).Marko Jurjako & Zdenka Brzović - 2021 - Metodicki Ogledi 28 (2):53-76.
Filozofija uma: pregled suvremenih rasprava o umu i tijelu (Eng. Philosophy of mind: a survey of contemporary debates on the mind-body problem).Marko Jurjako & Luca Malatesti - 2022 - Rijeka: University of Rijeka, Faculty of Humanities and Social Sciences.
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