
Markku Keinänen
Responsibilities
Research, related scientific tasks and supervision of doctoral dissertations. In the spring of 2026, I will teach the elementary course in metaphysics.
Mission statement
Current work in progress book Tropes, Causal Processes and Natural Kinds together with Dr Jani Hakkarainen.
Research unit
Research fields
Metaphysics, formal ontology, trope theory and metaphysics of science.
Funding
Selected publications
1. “There are no module or modifier tropes” - 2025 - Synthese 205(5).
2. "Trope Bundle Theories of Substance", Markku Keinänen & Jani Hakkarainen, 2024 - In A. R. J. Fisher & Anna-Sofia Maurin (eds.) The Routledge Handbook of Properties, London, Routledge, 239-249.
3. Formal Ontology, Jani Hakkarainen & Markku Keinänen - 2023 - Cambridge, Cambridge University Press.
4. "Bradley's Relation Regress and the Inadequacy of the Relata-specific Answer," Jani Hakkarainen & Markku Keinänen - Acta Analytica (published online)
5. "Lowe’s Eliminativism About Relations and the Analysis of Relational Inherence", Markku Keinänen - 2022 - In Miroslaw Szatkowski (ed.) E.J. Lowe and Ontology, Routledge, pp. 105-122.
6. "Away with Dispositional Essences in Trope Theory", Jani Hakkarainen & Markku Keinänen - 2021 - In Ludger Jansen & Petter Sandstad (eds.), Neo-Aristotelian Perspectives on Formal Causation. London, UK, New York, NY: Routledge. pp. 106-123.
7. "Bundle Theory with Kinds", Markku Keinänen & Tuomas Tahko - 2019 -Philosophical Quarterly 69 (277):838-857.2.
8. "Quantity Tropes and Internal Relations", Markku Keinänen, Antti Keskinen & Jani Hakkarainen - 2019 - Erkenntnis 84(3), 519-534.
9. "Kinds of Tropes without Kinds", Markku Keinänen, Jani Hakkarainen & Antti Keskinen - 2018 - Dialectica 72(4), 571-596.
10. "Trooppiteoriat ja relaatiossa olemisen analyysi", 2018 - Ajatus 75, 121-150.
11. "A Trope Theoretical Analysis of Relational Inherence", 2018 - In Jaakko Kuorikoski & Teemu Toppinen (eds.), Acta Philosophica Fennica 94. Helsinki, pp. 161-189.
12. "Instantiation and Characterization: Problems in Lowe's Four-Category Ontology", 2018 - In Timothy Tambassi (ed.), Studies in the Ontology of E.J. Lowe, Editiones Scholasticae. pp. 103 -124.
13. "Kind Instantiation and Kind Change - A Problem for Four-Category Ontology", Markku Keinänen & Jani Hakkarainen - 2017 - Studia Neoaristotelica 14 (2): 139-165.
14. "The Ontological Form of Tropes - Refuting Douglas Ehring’s Main Argument Against Standard Trope Nominalism", Jani Hakkarainen & Markku Keinänen - 2017 - Philosophia 45 (2):647-658.
15. "Why Realists Need Tropes", Markku Keinänen, Jani Hakkarainen & Antti Keskinen - 2016 - Metaphysica 17 (1):69-85.
16. "Tahko metafysiikan ja tieteen suhteesta", 2016 - Ajatus 73: 255-267.
17. "Trope Nominalist Theory of Natural Kinds, 2015 - In Ghislain Guigon & Gonzalo Rodriguez-Pereyra (eds.), Nominalism about Properties. Routledge. pp. 156-174.
18. "Concrete Universals and Spatial Relations", Antti Keskinen, Jani Hakkarainen & Markku Keinänen - 2015 - European Journal of Analytic Philosophy 11 (1):57-71.
19. "The Problem of Trope Individuation: A Reply to Lowe", Markku Keinänen & Jani Hakkarainen - 2014 - Erkenntnis 79 (1): 65-79.
20. "Tropes – The Basic Constituents of Powerful Particulars?", 2011 - Dialectica 65 (3):419-450.
21. "Persistence of Simple Substances.Markku Keinänen & Jani Hakkarainen - 2010 - Metaphysica 11 (2):119-135.
22. "Armstrong's Conception of Supervenience", 2008 - In Tim de Mey & Markku Keinänen (eds.), Problems From Armstrong. Acta Philosophica Fennica 84. pp. 51-61.
23. "A Combinatorial Theory of Modality", Janne Hiipakka, Markku Keinänen & Anssi Korhonen - 1999 - Australasian Journal of Philosophy 77 (4):483 – 497.
Latest publications
Objektit, ominaisuudet ja lajit
Keinänen, M., 1 Apr 2026, Metafysiikan perusteet. Hakkarainen, J. & Slavov, M. (eds.). Gaudeamus, p. 45-68 23 p.Translated title of the contribution :Objects, properties, and kinds Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review
Free-floating Tropes
Keinänen, M., 23 Dec 2025, Contemporary Perspectives and Historical Dimensions: Festschrift in Honor of Jani Hakkarainen. Slavov, M. & Forsman, J. (eds.). Tampere University, p. 9-28 19 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific
Language, Truth, and Reality: Philosophical essays in honour of Panu Raatikainen
Laitinen, A. (Editor), Keinänen, M. (Editor), Reinikainen, J. (Editor) & Honkasalo, A. (Editor), 20 Nov 2025, Tampere University Press. 298 p.Research output: Book/Report › Anthology › Scientific › peer-review
Language, Truth, and Reality. An Introduction
Laitinen, A., Keinänen, M., Reinikainen, J. & Honkasalo, A., 2025, Language, Truth, and Reality: Essays in honour of Panu Raatikainen. Laitinen, A., Keinänen, M., Reinikainen, J. & Honkasalo, A. (eds.). Tampere University Press, p. 9-18 9 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review
The Nominalist Theory of Natural Kinds and Kind Essences
Keinänen, M., 20 Nov 2025, Language, Truth, and Reality: Philosophical essays in honour of Panu Raatikainen. Laitinen, A., Keinänen, M., Reinikainen, J. & Honkasalo, A. (eds.). Tampere University Press, p. 227-236 9 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review
There are no module or modifier tropes
Keinänen, M., May 2025, In: Synthese. 205, 5, 201.Research output: Contribution to journal › Article › Scientific › peer-review
Metafysiikka: Ontologiset kategoriateoriat
Keinänen, M. & Hakkarainen, J., 1 Apr 2024, Logos-Ensyklopedia. Eurooppalaisen filosofian seura ry, (Logos-Ensyklopedia).Research output: Chapter in Book/Report/Conference proceeding › Entry for encyclopedia/dictionary › Scientific › peer-review
Trope Bundle Theories of Substance
Keinänen, M. & Hakkarainen, J., 2024, Routledge Handbook of Properties. Fisher, A. (. R. J. & Maurin, A.-S. (eds.). Routledge, p. 239-249 10 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review
Bradley’s Relation Regress and the Inadequacy of the Relata-Specific Answer
Hakkarainen, J. & Keinänen, M., 2023, In: Acta Analytica. 38, 2, p. 229-243Research output: Contribution to journal › Article › Scientific › peer-review
Formal Ontology
Hakkarainen, J. & Keinänen, M., 21 Sept 2023, Cambridge: Cambridge University Press. 72 p. (Elements in Metaphysics)Research output: Book/Report › Book › Scientific › peer-review