This workshop focuses on the interplay between mereological principles and the individuation of entities. Classical mereology ascribes to extensionality principles, according to which, if objects have the same parts, they are the same object. Some go further and even ascribe to the idea that a whole is simply identical to its parts. Well-known constitution cases pull us in the opposite direction however: one might think that a statue and a lump of clay have the same parts, but are nevertheless distinct things. This workshop aims to generate a discussion of these different pulls on individuation and composition, bringing together speakers who explore different ways of answering them. If you you'd like to join, please contact me at: m.a.lipman@phil.leidenuniv.nl Location: Leiden University, P. J. Veth building, Room 0.06 Date: 24 October