An Abstract Mereology for Meinongian Objects

  • Thibaut Giraud Institut Jean Nicod, Paris, France
Keywords: mereology, Meinong, Meinongian objects


The purpose of this paper is to examine how any domain of Meinongian objects can be structured by a special kind of mereology. The basic definition of this mereology is the following: an object is part of another iff every characteristic property of the former is also a characteristic property of the latter. (The notions of domain of Meinongian objects and characteristic property will be carefully explained in the paper.) I will show that this kind of mereology ends up being very powerful for dealing with Meinongian objects. Mereological sums and products are not restricted in any way in a domain of Meinongian objects: there is a sum and a product for any pair of Meinongian objects. With the mereological operations of sum, product and complement, and two special Meinongian objects (a total object having every characteristic property and a null object having no characteristic property), we can define a full boolean algebra on Meinongian objects. Moreover, this kind of mereology is atomic and extensional: an atom is a Meinongian object having just one characteristic property and two objects are identical iff the same atoms are parts of both of them. A Meinongian object can finally be defined in mereological terms as the sum of the atoms of its characteristic properties.

How to Cite
Giraud, T. (2013). An Abstract Mereology for Meinongian Objects. HUMANA.MENTE Journal of Philosophical Studies, 6(25), 177-210. Retrieved from