Timothy Williamson, one of the most influential and original contemporary philosophers, recently wrote a paper on objective modalities that seems to be an important contribution to the metaphysics of modalities. The paper was downloaded in a draft version from Academia.edu.  In this seminar we are going to discuss this paper, along with a couple of other texts which will help us putting Williamson's ideas and arguments in perspective. The reading list may vary in accordance with the directions our investigations will take.

Williamson, T, Modal Science. Manuscript, 2015.
Williamson, T, Modal Logic as Metaphysics. Oxford UP, 2013.
Kratzer, A, Modals and Conditionals. Oxford UP, 2012.