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Single Idea 9650

[from 'On the Plurality of Worlds' by David Lewis, in 7. Existence / C. Structure of Existence / 5. Supervenience / a. Nature of supervenience ]

Full Idea

The idea of supervenience is when there could be no difference of one sort without difference of another sort. ..Clearly this 'could' indicates modality, and without modality we have nothing of interest.

Gist of Idea

Supervenience concerns whether things could differ, so it is a modal notion

Source

David Lewis (On the Plurality of Worlds [1986], 1.2)

Book Reference

Lewis,David: 'On the Plurality of Worlds' [Blackwell 2001], p.15


A Reaction

This might explain why philosophers are going to be more at home with the concept than neuroscientists would be.