The CEU Philosophy Department cordially invites you to a lecture by Hugh Mellor (Cambridge) on 'Are wholes the sums of their parts?' Tuesday, 11 October 2005 5.00 PM, Zrinyi 14, room 412 Abstract Many philosophers accept a principle of unrestricted mereological composition. This says that any number of entities of any kind constitute another entity, which is the mereological sum of them. This principle implies in particular that there is a mereological sum of the material parts of any material object, with which that object is then commonly identified. I argue that the problems that the vagueness of the part-whole relation raises for this identification means that we should not only reject it but deny that there is any such entity as the sum of a material object's parts Kriszta Biber Department Coordinator Philosophy Department Tel: 36-1-327-3806 Fax: 36-1-327-3072 E-mail: biberk(a)ceu.hu