Since 2009, Tero Tulenheimo has been an associate professor at the Department of Philosophy at the University of Lille. He defended his PhD in Philosophy at the University of Helsinki in 2004. His research interests are in logic, philosophy of language, ontology, and epistemology. He has published more than 20 peer-reviewed scientific articles in international journals and edited books.

“In my opinion, this book has many qualities, mainly those of presenting in a solid manner a formal tool, investigating some of its properties with precision, and showing convincingly how it can be used to discuss relevant philosophical problems. I think the author is very conscious of his achievements and I prize the writing of such a good work.” (Jorge Petrucio Viana, Mathematical Reviews, October, 2019)

• Chapter 1: Individuals and Cross-World Identity.-Chapter 2: The Nature of Modal Individuals.-Chapter 3: Two Modes of Individuation.-Chapter 4: Intentional Objects as World Lines .-Chapter 5: Logical Repercussions of World Line Semantics.-Chapter 6: General Consequences.

Since 2009, Tero Tulenheimo has been an associate professor at the Department of Philosophy at the University of Lille. He defended his PhD in Philosophy at the University of Helsinki in 2004. His research interests are in logic, philosophy of language, ontology, and epistemology. He has published more than 20 peer-reviewed scientific articles in international journals and edited books.

“In my opinion, this book has many qualities, mainly those of presenting in a solid manner a formal tool, investigating some of its properties with precision, and showing convincingly how it can be used to discuss relevant philosophical problems. I think the author is very conscious of his achievements and I prize the writing of such a good work.” (Jorge Petrucio Viana, Mathematical Reviews, October, 2019)

• Chapter 1: Individuals and Cross-World Identity.-Chapter 2: The Nature of Modal Individuals.-Chapter 3: Two Modes of Individuation.-Chapter 4: Intentional Objects as World Lines .-Chapter 5: Logical Repercussions of World Line Semantics.-Chapter 6: General Consequences.

Since 2009, Tero Tulenheimo has been an associate professor at the Department of Philosophy at the University of Lille. He defended his PhD in Philosophy at the University of Helsinki in 2004. His research interests are in logic, philosophy of language, ontology, and epistemology. He has published more than 20 peer-reviewed scientific articles in international journals and edited books.

“In my opinion, this book has many qualities, mainly those of presenting in a solid manner a formal tool, investigating some of its properties with precision, and showing convincingly how it can be used to discuss relevant philosophical problems. I think the author is very conscious of his achievements and I prize the writing of such a good work.” (Jorge Petrucio Viana, Mathematical Reviews, October, 2019)

• Chapter 1: Individuals and Cross-World Identity.-Chapter 2: The Nature of Modal Individuals.-Chapter 3: Two Modes of Individuation.-Chapter 4: Intentional Objects as World Lines .-Chapter 5: Logical Repercussions of World Line Semantics.-Chapter 6: General Consequences.