Ori Simchen

This book argues that words and thoughts are typically about whatever they are about necessarily rather than contingently. The argument proceeds by articulating a requisite modal background and then bringing this background to bear on cognitive matters, notably the intentionality of cognitive episodes and states. The modal picture that emerges from the first two chapters is a strongly particularist one whereby possibilities reduce to possibilities for particular things (or pluralities thereof) where the latter are determined by the natures of the particular things (or pluralities) involved. The next three chapters are devoted to the aboutness of referring terms in language and thought. The approach espoused is, again, strongly particularist in allotting explanatory priority to cognitive episodes and states regarding particular things (aka de re attitudes).

The Barcan formula (BF) is commonly paraphrased as the schematic conditional that if it is possible that there be a phi then something or other is possibly a phi. It is validated by the most straightforward systems of quantified modal logic. It is also widely considered to pose a threat to the commonsensical metaphysical view that there are no non-actual (or ‘merely possible’) things. I show how BF can be cleared of such a charge by construing it as a bridge principle connecting modality de dicto and modality de re while retaining a Russellian robust sense of reality in modal matters.