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Single Idea 11972

[filed under theme 10. Modality / E. Possible worlds / 3. Transworld Objects / c. Counterparts ]

Full Idea

I prefer to think of essence as a transworld heir line, rather than as the more familiar collection of properties, because the latter too much suggests the idea of a fixed and final essential description.

Clarification

The 'heir line' links counterparts, rather like relatives

Gist of Idea

Essence is a transworld heir line, rather than a collection of properties

Source

David Kaplan (Transworld Heir Lines [1967], p.100)

Book Ref

'The Possible and the Actual', ed/tr. Loux,Michael J. [Cornell 1979], p.100


A Reaction

He is sympathetic to the counterpart idea, and close to Lewis's view of essences, as the intersection of counterparts. I like his rebellion against fixed and final descriptions, but am a bit doubtful about his basic idea. Causation should be involved.


The 13 ideas from David Kaplan

Indexicals have a 'character' (the standing meaning), and a 'content' (truth-conditions for one context) [Kaplan, by Macià/Garcia-Carpentiro]
'Content' gives the standard modal profile, and 'character' gives rules for a context [Kaplan, by Schroeter]
Are causal descriptions part of the causal theory of reference, or are they just metasemantic? [Kaplan, by Schaffer,J]
For Russell, expressions dependent on contingent circumstances must be eliminated [Kaplan]
'Haecceitism' says that sameness or difference of individuals is independent of appearances [Kaplan]
'Haecceitism' is common thisness under dissimilarity, or distinct thisnesses under resemblance [Kaplan]
If quantification into modal contexts is legitimate, that seems to imply some form of haecceitism [Kaplan]
Unusual people may have no counterparts, or several [Kaplan]
Essence is a transworld heir line, rather than a collection of properties [Kaplan]
Sentences might have the same sense when logically equivalent - or never have the same sense [Kaplan]
Models nicely separate particulars from their clothing, and logicians often accept that metaphysically [Kaplan]
Logicians like their entities to exhibit a maximum degree of purity [Kaplan]
The simplest solution to transworld identification is to adopt bare particulars [Kaplan]