John Heil is a contemporary analytic philosopher known for his work in metaphysics and philosophy of mind. He has developed a distinctive ontological framework centered on the identity theory of properties, arguing that properties are simultaneously dispositional and qualitative. His work addresses truthmakers, tropes, mental causation, and the structure of reality at a foundational level.
Developed the dual-aspect (identity) theory of properties, holding that dispositional and qualitative aspects are identical
Authored 'From an Ontological Point of View' (2003), a major contribution to analytic metaphysics
Advanced a sparse, non-Humean ontology in 'The Universe as We Find It' (2012)
Contributed to truthmaker theory and the ontology of negative truths
Produced influential work on mental causation and the causal efficacy of mental properties
The lack of informativeness is not a good objection to the optimalist account of negative truths