more from Horsten,L/Pettigrew,R

Single Idea 18748

[catalogued under 10. Modality / E. Possible worlds / 1. Possible Worlds / b. Impossible worlds]

Full Idea

The idea of 'impossible worlds' was introduced into epistemic logic.

Gist of Idea

Epistemic logic introduced impossible worlds


Horsten,L/Pettigrew,R (Mathematical Methods in Philosophy [2014], 4)

Book Reference

'Bloomsbury Companion to Philosophical Logic', ed/tr. Horsten,L/Pettigrew,R [Bloomsbury 2014], p.19

A Reaction

Nathan Salmon seems interested in their role in metaphysics (presumably in relation to Meinongian impossible objects, like circular squares, which must necessarily be circular).