Jeroen Smid

Research interests

Metaphysics, Philosophical Logic, Metaontology.

Current research

I completed my PhD on the theory of part-whole relations (mereology) at Lund University in 2017. Apart from mereology, I am interested in philosophical logic, and metaontology.

Photograph of Jeroen Smid

My current research project concerns principles for theory choice in mereology. In particular, I am interested in the question which, if any, of the various principles for theory choice available to us, are relevant to the extensionality debate in mereology. The project is generously funded by the Swedish Research Council hosted by the departments of philosophy of Lund University (Sweden) and of the University of Manchester (UK).


  • Review of Giorgio Lando – Mereology: A Philosophical Introduction. New York: Bloomsbury Press (2017)’ Philosophical Quarterly, online first 2018, doi: 10.1093/pq/pqx070
  • ‘What does ‘nothing over and above its parts’ actually mean?’, Philosophy Compass 12 (2017) doi: 10.1111/phc3.12391.
  • ‘Material constitution is ad hoc’, Erkenntnis 82.2 (2017): 305-325.
  • ‘‘Identity’ as a mereological term’, Synthese 194.7 (2017): 2367-2385.
  • ‘The ontological parsimony of mereology’, Philosophical Studies 172.12 (2015): 3253-3271.
  • ‘A puzzle concerning boundaries, dependence and parthood’, Analytic Philosophy 56.2 (2015): 169-176.
  • ‘Tarski’s one and only concept of truth’, Synthese 191.13 (2014): 3393-3406.
  • Review of ‘Nicolas Wolterstorff – Inquiring About God & Practices of Belief: Selected Essays Volumes I & II, edited by T. Cuneo, New York: Cambridge University Press (2010).’ Philosophia Reformata 76 (2011): 157-160.

Presentations (selected)

‘Extensionality for Fusions and Pluralities’

  • Mereology and Identity, Pisa (IT) July 3-5, 2017 [invited].
  • Higher Seminar in Theoretical Philosophy, Lund (SE) October 17, 2017.
  • Higher Seminar in Philosophy, Linköping (SE) November 22, 2017.

‘Grounded Composition?’

  • Metaphysics and Collectivity Mini-Workshop, Lund (SE) June 9-10, 2016.

‘On the ontological parsimony of mereology.’

  • OZSW Conference, Amsterdam (NL) December 12-14, 2015.

‘What does ‘nothing over and above its parts’ actually mean?’

  • Filosofidagarna, Linköping (SE) June 12-14, 2015.
  • Social Complexes II, Gothenburg (SE) June 8-10, 2015.
  • Higher Seminar in Theoretical Philosophy, Lund (SE) March 10, 2015.

‘Priority Monism versus Classical Mereology.’

  • Amsterdam Graduate Conference, Amsterdam (NL) May 26-28, 2014.

‘Priority Monism versus Classical Mereology.’

  • Rutgers-Lund Graduate Conference, New Jersey (USA) April 17-18, 2014.


In the Autumn semester of 2016 and of 2017 I gave a lecture on the metaphysics of meaning within a Philosophy of Language course for international students at Lund University.

In 2016 I co-taught with Hein van den Berg three workshops on academic writing to second-year BA philosophy students at the University of Amsterdam.

Other information

From 2015-2017 I was Secretary of the Philosophical Society of Lund.

In 2017 I co-organized with Cathrine Felix and Henrik Andersson the Rutgers–Lund Graduate Conference.

My Lund University page is

Contact details