Necessity, Apriority, and True Identity Statements

Erkenntnis 40 (2):227 - 242 (1994)
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Abstract

The thesis that the necessary and the a priori are extensionally equivalent consists of two independent claims: 1) All a priori truths are necessary and 2) all necessary truths are a priori. In Naming and Necessity1 Saul A. Kripke gives examples of necessary but a posteriori truths, so he disagrees with the second leg of the thesis.2 His examples are of two types; on the one hand statements involving essential properties and on the other hand true identity statements. My concern will be with examples of the second type and whether they refute (2). (2), however, is ambiguous and can mean one of three things.

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Heimir Geirsson
Iowa State University

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References found in this work

Naming and Necessity: Lectures Given to the Princeton University Philosophy Colloquium.Saul A. Kripke - 1980 - Cambridge, MA: Harvard University Press. Edited by Darragh Byrne & Max Kölbel.
The Nature of Necessity.Alvin Plantinga - 1974 - Oxford, England: Clarendon Press.
Naming and necessity.Saul A. Kripke - 2010 - In Darragh Byrne & Max Kölbel (eds.), Arguing about language. New York: Routledge. pp. 431-433.
Naming and Necessity.Saul Kripke - 1980 - Philosophy 56 (217):431-433.
Frege’s Puzzle (2nd edition).Nathan U. Salmon - 1986 - Atascadero, CA: Ridgeview Publishing Company.

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