This book explores the thought of Alexius Meinong, a philosopher known for his unconventional theory of reference and predication. The chapters cover a natural progression of topics, beginning with the origins of Gegenstandstheorie, Meinong’s theory of objects, and his discovery of assumptions as a fourth category of mental states to supplement his teacher Franz Brentano’s references to presentations, feelings, and judgments. The chapters explore further the meaning and metaphysics of fictional and other nonexistent intended objects, fine points in Meinongian object theory are considered and new and previously unanticipated problems are addressed. The author traces being and non-being and aspects of beingless objects including objects in fiction, ideal objects in scientific theory, objects ostensibly referred to in false science and false history and intentional imaginative projection of future states of affairs. The chapters focus on an essential choice of conceptual, logical, semantic, ontic and more generally metaphysical problems and an argument is progressively developed from the first to the final chapter, as key ideas are introduced and refined. Meinong studies have come a long way from Bertrand Russell’s off-target criticisms and recent times have seen a rise of interest in a Meinongian approach to logic and the theory of meaning. New thinkers see Meinong as a bridge figure between analytic and continental thought, thanks to the need for an adequate semantics of meaning in philosophy of language and philosophy of mind, making this book a particularly timely publication.​

Issues surrounding the status and nature of `nonexistent objects' constitute one of philosophy's oldest and densest thickets. In this book Perszyk takes his readers surefootedly through this thicket, informed both historically and at the level of contemporary discussion of relevant themes. His main aim is to develop a `bundle' or `set of properties' interpretation of Meinong's theory of nonexistent objects (as opposed to a set of properties neo-Meinongian metaphysics), and to defend this nonstandard interpretation against competing views in both the philosophical and scholarly literature on Meinong. The Meinong who emerges is neither the hero nor the villain his friends and foes have commonly led us to believe. This clearly written book is a valuable addition both to the literature on Meinong and to contemporary metaphysics of modality. It is written for students and professionals interested in these, and related, areas.

The study aims at exposing Meinong's ideas that may be of interest to analytic philosophers. It contains all the basic information concerning Meinong's theory of objects with a special focus upon 'objectives', which are Meinong's propositions. Meinong's theory of meaning and his epistemological views are discussed in detail. An outline of his conception of truth, which is classified as firmly realistic, is followed by a review of the critical works touching upon Meinong's epistemological ideas. Finally, Meinong's theory of objects is presented as inspiring the development of Meinongian logics, with his Aussersein as the prototype of an all-inclusive semantic domain. The issues considered include reference of terms and sentences as well as the general features of a Meinongian-style semantics.

Towards Non-Being presents an account of the semantics of intentional language - verbs such as 'believes', 'fears', 'seeks', 'imagines'. Graham Priest's account tackles problems concerning intentional states which are often brushed under the carpet in discussions of intentionality, such as their failure to be closed under deducibility. Drawing on the work of the late Richard Routley (Sylvan), it proceeds in terms of objects that may be either existent or non-existent, atworlds that may be either possible or impossible. Since Russell, non-existent objects have had a bad press in Western philosophy; Priest mounts a full-scale defence. In the process, he offers an account of both fictional and mathematical objects as non-existent.The book will be of central interest to anyone who is concerned with intentionality in the philosophy of mind or philosophy of language, the metaphysics of existence and identity, the philosophy or fiction, the philosophy of mathematics, or cognitive representation in AI.

This book presents an historical and conceptual reconstruction of the theories developed by Meinong and a group of philosophers and experimental psychologists in Graz at the turn of the 19th century. Adhering closely to original texts, the contributors explore Meinong's roots in the school of Brentano, complex theories such as the theory of intentional reference and direct reference, and ways of developing philosophy which are closely bound up with the sciences, particularly psychology. Providing a faithful reconstruction of both Meinong's contributions to science and the school that arose from his thought, this book shows how the theories of the Graz school raise the possibility of engaging in the scientific metaphysics and ontology that for so long have been considered off limits.

The volume collects papers on central aspects of Alexius Meinong’s Gegenstandstheorie (Theory of Objects) and its transformation in contemporary logic, semantics and ontology covering the impact of his views on grasping and representation, the status of nonexistent or inconsistent objects and their incorporation in theories like Noneism and Possible-World-Semantics. In addition it presents studies on Meinong’s notion of probability and on Auguste Fischer, a student and collaborator of Meinong.

This volume is number five in the 11-volume Handbook of the History of Logic. It covers the first 50 years of the development of mathematical logic in the 20th century, and concentrates on the achievements of the great names of the period--Russell, Post, Gödel, Tarski, Church, and the like. This was the period in which mathematical logic gave mature expression to its four main parts: set theory, model theory, proof theory and recursion theory. Collectively, this work ranks as one of the greatest achievements of our intellectual history. Written by leading researchers in the field, both this volume and the Handbook as a whole are definitive reference tools for senior undergraduates, graduate students and researchers in the history of logic, the history of philosophy, and any discipline, such as mathematics, computer science, and artificial intelligence, for whom the historical background of his or her work is a salient consideration.• The entire range of modal logic is covered• Serves as a singular contribution to the intellectual history of the 20th century• Contains the latest scholarly discoveries and interpretative insights

Free logic - i.e., logic free of existential presuppositions in general and with respect to singular terms in particular- began to come into its own as a field of research in the 1950s. As is the case with so many developments in Western philosophy, its roots can be traced back to ancient Greek philo sophy. It is only during the last fifty years, however, that it has become well established as a branch of modern logic. The name of Karel Lambert is most closely connected with this development: he gave it its name and its profile as a well defined field of research. After a development of fifty years, it is time to look back and take stock while at the same time scanning for new perspectives. This is the purpose of the papers collected in this volume. The first paper is written by Karel Lambert himself who also comments on all the papers of the other authors. In an introductory essay we give a survey of the present status of and new directions in free logic.