Circular analyses of philosophical, linguistic, or computational phenomena have been attacked on the assumption that they conflict with mathematical rigour. Barwise and Moss have undertaken to prove this assumption false. This volume is concerned with extending the modelling capabilities of set theory to provide a uniform treatment of circular phenomena. As a means of guiding the reader through the concrete examples of the theory, the authors have included many exercises and solutions: these exercises range in difficulty and ultimately stimulate the reader to come up with new results. Vicious Circles is intended for use by researchers who want to use hypersets; although some experience in mathematics is necessary, the book is accessible to people with widely differing backgrounds and interests.

This book provides pediatric surgeons with a comprehensive, up-to-date compilation of surgical and endoscopic procedures in the form of operative templates and explanatory text to orient learners to the pertinent details and technical variations of the operation. Each chapter includes procedure-specific indications and risks that are relevant to the consent process. Chapters are written by experts in their fields that represent eight distinct surgical subspecialties. Appropriate emphasis is placed on minimally-invasive approaches to portray contemporary practice whenever possible. The result reflects the authors' experiences while still addressing common technical variations to ensure that each chapter is broadly reflective of clinical practice. Operative Dictations in Pediatric Surgery is designed as a concise guide to the pediatric surgical trainee and practicing surgeon alike who care for children across the surgical spectrum.

Ideas from theoretical computer science continue to have an important influence on areas of philosophy and linguistics. The papers contained in this volume by some of the most influential computer scientists, linguists, logicians and philosophers of today cover subjects such as channel theory, presupposition and constraints, the modeling of discourse, and belief. The contributors include: Jon Barwise, who shows how the ideas of channel theory fit in with non-monotonic logic; Jelle Gerbrandy shows how ideas from dynamic logic can be used to study the notion of common knowledge among groups of agents; Wiebe van der Hoek and Maarten de Rijke provide ideas from theoretical computer science to a more philosophical area, belief revision; Rohit Parikh proposes a solution to one of the problems of belief revision; Paul Skokowski discusses Fred Dretske's theory of content; and Thomas Ede Zimmermann discusses the notions of discourse referent and information states.

Ideas from theoretical computer science continue to have an important influence on areas of philosophy and linguistics. The papers contained in this volume by some of the most influential computer scientists, linguists, logicians and philosophers of today cover subjects such as channel theory, presupposition and constraints, the modeling of discourse, and belief. The contributors include: Jon Barwise, who shows how the ideas of channel theory fit in with non-monotonic logic; Jelle Gerbrandy shows how ideas from dynamic logic can be used to study the notion of common knowledge among groups of agents; Wiebe van der Hoek and Maarten de Rijke provide ideas from theoretical computer science to a more philosophical area, belief revision; Rohit Parikh proposes a solution to one of the problems of belief revision; Paul Skokowski discusses Fred Dretske's theory of content; and Thomas Ede Zimmermann discusses the notions of discourse referent and information states.