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Full Idea
If anything is essential to Socrates, surely self-identity is.
Gist of Idea
Surely self-identity is essential to Socrates?
Source
Alvin Plantinga (De Re and De Dicto [1969], p.37)
Book Ref
Plantinga,Alvin: 'Essays in the Metaphysics of Modality' [OUP 2003], p.37
A Reaction
This is the modern move of Plantinga and Adams, to make 'is identical with Socrates' the one property which assures the identity of Socrates (his 'haecceity'). My view is that self-identity is not a property. Plantinga wonders about that on p.44.