b. 1941
Ingvar Johansson is a contemporary Swedish philosopher specializing in formal ontology, philosophy of science, and the metaphysics of universals and relations. He is best known for his systematic work in applied ontology, contributing foundational frameworks used in biomedical and information ontology. His work bridges analytic metaphysics with practical ontological engineering.
Developed systematic accounts of universals and tropes in contemporary analytic ontology
Contributed to applied ontology, particularly in biomedical informatics and the Basic Formal Ontology (BFO) tradition
Authored 'Ontological Investigations' (1989), a landmark text in formal ontology
Analyzed the ontology of quantities, relations, and determinables
Extended ontological analysis to philosophy of language, including the individuation of linguistic tokens and inscription-types