The latter half of the 20th Century witnessed an 'intensional revolution': a great collective
effort to analyse notions which are absolutely fundamental to our understanding of the world …

An overview of hyperintensionality is provided. Hyperintensional languages have
expressions with meanings that are more fine-grained than necessary equivalence. That is …

Mark Jago presents an original philosophical account of meaningful thought: in particular,
how it is meaningful to think about things that are impossible. We think about impossible …

A counterpossible conditional is a counterfactual with an impossible antecedent. Common
sense delivers the view that some such conditionals are true, and some are false. In recent …

I want to model a finite, fallible cognitive agent who imagines that p in the sense of mentally
representing a scenario—a configuration of objects and properties—correctly described by …

In some logics, anything whatsoever follows from a contradiction; call these logics explosive.
Paraconsistent logics are logics that are not explosive. Paraconsistent logics have a long …

Impossible worlds are representations of impossible things and impossible happenings.
They earn their keep in a semantic or metaphysical theory if they do the right theoretical …

Possible-worlds accounts of mental or linguistic content are often criticized for being too
coarse-grained. To make room for more fine-grained distinctions among contents, several …

It is an apparent truism that, for any things x and y, if x and y are identical, then x and y have
the same properties. For if x and y are identical they are one and the same thing, and so it …

We introduce a general representation of unary hyperintensional modalities and study
various hyperintensional modal logics based on the representation. It is shown that the …