Maciej Sendłak

To solve the problem of counterpossibles, many philosophers have been arguing that one needs to invoke impossible worlds. This extension of the ontology of modality should save the analysis of counterfactuals from being insensitive to the problem of counterpossibles. Since theories of impossible worlds are extensions of original accounts of modalities, it is worth stressing that proper analyses of counterpossibles should not weaken the latter.In this paper I argue that these theories of impossible wolrds, which are based on D. Lewis' modal realism - Extended Modal Realism and Hybrid Modal Realism - might be consider as either an unattractive for modal realists or insufficient for analyzing counterpossibles.

The article outlines the main motivations for the Guise Theory and its intriguing theses concerning identity, predication, existence, and fiction. The second part of the article is devoted to an assessment of Castañeda’s theory. It discusses the most influential critiques of the Guise Theory, as well as Russell’s objection to theories of nonexistent objects. The last section of the article contains a comparison of the Guise Theory with the Meinong’s Theory of Objects, and points out that despite various similarities, we should draw a distinction between original and moderate versions of Meinong’s theory. The main motivation for this distinction are differences between accounts of predications, which allow us to call the Guise Theory “quasi-Meinongian” rather than just “Meinongian”. This is because one of its main claims is taken from the work of Meinong’s pupil Ernst Mally, and not from Meinong himself.