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Single Idea 12138

[filed under theme 10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation ]

Full Idea

Identity across possible worlds is prior to rigid designation.

Gist of Idea

Identity across possible worlds is prior to rigid designation

Source

Baruch Brody (Identity and Essence [1980], 5.4)

Book Ref

Brody,Baruch: 'Identity and Essence' [Princeton 1980], p.111


A Reaction

An interesting view. We might stipulate that any possible Aristotle is 'our Aristotle', but you would still need criteria for deciding which possible Aristotle's would qualify. Long-frozen Aristotles, stupid Aristotles, alien Aristotle's, deformed...

Related Idea

Idea 15174 A thing doesn't need transworld identity prior to rigid reference - that could be a convention of the reference [Sidelle]


The 13 ideas from 'Identity and Essence'

Brody bases sortal essentialism on properties required throughout something's existence [Brody, by Mackie,P]
A sortal essence is a property which once possessed always possessed [Brody, by Mackie,P]
Maybe essential properties are those which determine a natural kind? [Brody]
a and b share all properties; so they share being-identical-with-a; so a = b [Brody]
Indiscernibility is a necessary and sufficient condition for identity [Brody]
Interrupted objects have two first moments of existence, which could be two beginnings [Brody]
Identity across possible worlds is prior to rigid designation [Brody]
De re essentialism standardly says all possible objects identical with a have a's essential properties [Brody]
Modern emphasis is on properties had essentially; traditional emphasis is on sort-defining properties [Brody]
Mereological essentialism says that every part that ensures the existence is essential [Brody]
Essentially, a has P, always had P, must have had P, and has never had a future without P [Brody]
An object having a property essentially is equivalent to its having it necessarily [Brody]
Essentialism is justified if the essential properties of things explain their other properties [Brody]