This volume brings together original works by leading scholars which aim to examine and evaluate the viability of the mental files framework for theorizing about singular thought.

François Recanati presents his theory of mental files, a new way of understanding reference in language and thought. Linguistic expressions inherit their reference from the files that we associate with them, which are classified according to their function, which is to store information derived through certain types of relation to objects.

Leading philosophers present essays on an issue central to philosophy of mind, language, and perception: the nature of our thought about the external world. The essays explore directions for future research, an important resource for anyone working at the interface of semantics and mental representation.

The contents of linguistic and mental representations may seem to be individuated by what they are about. But a problem arises with regard to representation of the non-existent -- words and thoughts that are about things that don't exist. Fourteen new essays get to grips with this much-debated problem.

This book constitutes the thoroughly refereed proceedings of the 12th International Conference, Spatial Cognition 2020, held in Riga, Latvia, in September 2020. The physical event was postponed to 2021 due to the COVID-19 pandemic. The 19 full papers and 6 short papers presented in this book were carefully selected and reviewed from 50 submissions. They focus on the following topics: spatial representation and cognitive maps; navigation and wayfinding; spatial representation in language, logic, and narrative; and spatial abilities and learning.

This book develops a novel generalization of possible world semantics, called ‘world line semantics’, which recognizes worlds and links between world-bound objects (world lines) as mutually independent aspects of modal semantics. Addressing a wide range of questions vital for contemporary debates in logic and philosophy of language and offering new tools for theoretical linguistics and knowledge representation, the book proposes a radically new paradigm in modal semantics. This framework is motivated philosophically, viewing a structure of world lines as a precondition of modal talk. The author provides a uniform analysis of quantification over individuals (physical objects) and objects of thought (intentional objects). The semantic account of what it means to speak of intentional objects throws new light on accounts of intentionality and singular thought in the philosophy of mind and offers novel insights into the semantics of intensional transitive verbs.

The work of Mark Sainsbury has made a significant and challenging contribution to several central areas of philosophy, especially philosophy of language and logic. He has made significant contributions to puzzles concerning the nature of thought and language and pioneered research in the philosophical theory known as fictionalism. In this outstanding volume, 20 contributors engage with Sainsbury’s work but also go beyond it, exploring fundamental problems in the philosophy of language, mind, and logic. Topics covered include propositional thought, intentionality, the mind-body problem, singular thoughts, the individuation of concepts, nominalisation, logical form, non-existent objects, and vagueness. Thought: Its Origin and Reach will be of interest to professional philosophers and students working in philosophy of mind, language, epistemology, and metaphysics.