SOPhiA 2019

Salzburgiense Concilium Omnibus Philosophis Analyticis

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Programme - Talk

Strong Pluralism and Haecceitism
(Metaphysics and Ontology, English)

According to some, permanent coincidence is sufficient for identity (see Noonan 2015). However, strong pluralism rejects the sufficiency of permanent coincidence for identity. The regular rationale for strong pluralism is that the coincidents are modaly individuated. However, the position has been contested precisely on the grounds that strong pluralism cannot account for the exact physical duplicates_ having different persistence conditions or modal properties (Olson 1998: 102; Noonan 2015: 1082-83). The problem of providing the grounds for the difference in modal properties is deemed to critically undermine the plausibility of strong pluralism.

_In our presentation we aim to provide metaphysical motivations for strong pluralism. However, we do not atempt it via the grounding problem (see Bennett 2004). We instead defend pluralism offering a haecceitic interpretation of it, according to which strong pluralism should be read as a position that is committed to the existence of primitive individuals, i.e. the individuals that have their criteria of individuation independently of their qualitative profiles.

_We do not aim at defending haecceitism. Instead, our aim is rather modest: we want to provide a different way by which the strong pluralist could supplement his view to make it more watertight. In order to achieve that we provide a map of different approaches towards metaphysical status of haecceities and show that strong pluralist has some options in order to motivate her claim.


Bennett, K., 2004, ''Spatio-Temporal Coincidence and the Grounding Problem'', Philosophical Studies, 118: 339__371.

Noonan, H. 2015,''Against Strong Pluralism'', Philosophia 43, 1081-1087

Olson, E. 1998. The Human Animal: Personal Identity Without Psychology, New York: Oxford University Press.

Time: 14:40-15:10, 20 September 2019 (Friday)
Location: SR 1.003

Karol Lenart 
(Jagiellonian University, Poland)

I am a PhD student and teaching assistant in the Department of Philosophy at Jagiellonian University in Krakow. The main field of my interest is analytic metaphysic, especially issues concerning possible worlds, modalities and individuation. Currently I work on a Lewisian principle of recombination, humeanism and quidditism.

Artur Szachniewicz 
(Jagiellonian University, Poland)

Artur Szachniewicz is a third year PhD student from the Philosphy Department of Jagiellonian University, Krakow. His interest lie within the metaphysics of ordnary objects and panpsychistic metaphysics.

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