The ultimate goal of program verification is not the theory behind the tools or the tools themselves, but the application of the theory and tools in the software engineering process. Our society relies on the correctness of a vast and growing amount of software. Improving the software engineering process is an important, long-term goal with many steps. Two of those steps are the KeY tool and this KeY book.

This proceedings volume contains a selection of revised and extended papers presented at the Second International Workshop on Nonmonotonic and InductiveLogic, NIL '91, which took place at Reinhardsbrunn Castle, December 2-6, 1991. The volume opens with an extended version of a tutorial on nonmonotonic logic by G. Brewka, J. Dix, and K. Konolige. Fifteen selected papers follow, on a variety of topics. The majority of papers belong either to the area of nonmonotonic reasoning or to the field of inductive inference, but some papers integrate research from both areas. The first workshop in this series was held at the University of Karlsruhe in December 1990 and its proceedings were published as Lecture Notes in Artificial Intelligence Volume 543. The series of workshops was made possible by financial support from Volkswagen Stiftung, Hannover. This workshop was also supported by IBM Deutschland GmbH and Siemens AG.

This proceedings volume contains revised and reviewed papers based on talks presented at the first International Workshop on Nonmonotonic and Inductive Logic held in Karlsruhe, December 1990. The workshop was supported by the Volkswagen-Stiftung, Hannover, and provided a forum for researchers from the two fields to communicate and find areas of cooperation. The papersare organized into sections on: - Nonmonotonicity in logic programs - Axiomatic approach to nonmonotonic reasoning - Inductive inference - Autoepistemic logic - Belief updates The bulk of the papers are devoted to nonmonotonic logic and provide an up-to-date view of the current state of research presented by leading experts in the field. A novelty in the contributions from the area of inductive logic is the analysis of nonmonotonicity in the theory of inductive learning.

Static analysis of software with deductive methods is a highly dynamic field of research on the verge of becoming a mainstream technology in software engineering. It consists of a large portfolio of - mostly fully automated - analyses: formal verification, test generation, security analysis, visualization, and debugging. All of them are realized in the state-of-art deductive verification framework KeY. This book is the definitive guide to KeY that lets you explore the full potential of deductive software verification in practice. It contains the complete theory behind KeY for active researchers who want to understand it in depth or use it in their own work. But the book also features fully self-contained chapters on the Java Modeling Language and on Using KeY that require nothing else than familiarity with Java. All other chapters are accessible for graduate students (M.Sc. level and beyond). The KeY framework is free and open software, downloadable from the book companion website which contains also all code examples mentioned in this book.

Die Programmiersprache Prolog hat ihre Bewahrungsprobe im praktischen Einsatz bestanden, und das logische Programmieren hat unter den Programmiertechniken seinen festen Platz gefunden. Worin liegen Attraktion und Nutzen des logischen Programmierens, was sind die charakteristischen Unterschiede zu anderen Programmiertechniken, und welche Rolle kommt der Theorie des logischen Programmierens zu? Dieses Buch macht den Leser mit den Grundlagen und Moglichkeiten der logischen Programmierung vertraut. Die ausfuhrliche Darstellung mit Ubungsaufgaben und ausgewahlten Losungen setzt keine speziellen Vorkenntnisse in formaler Logik voraus. In der Einleitung werden die wichtigsten Probleme und Resultate der Theorie anhand von Beispielen anschaulich vorgestellt. Es ist ein besonderes Anliegen des Buches, zu zeigen, wie hohere Konzepte der mathematischen Logik, z.B. vollstandige Theorien, dreiwertige Logik oder saturierte Strukturen, in naturlicher und verstandlicher Weise sinnvoll eingesetzt werden konnen. Auch dem neuen Thema der logischen Programmierung mit Randbedingungen (constraints) ist ein Kapitel gewidmet. In allen Teilen des Buches wird Wert gelegt auf klare Darstellung, mathematische Prazision und vollstandige, nachvollziehbare Beweise. Auf ubertriebene Systematik und Notation wird jedoch verzichtet, und Verallgemeinerungen werden erst dort eingefuhrt, wo sie gebraucht werden. Das Buch ist sowohl als vorbereitende und begleitende Lekture zu Vorlesungen als auch zum Selbststudium geeignet.

Michael Tyler's world was turned upside down when he was wrongfully convicted of the brutal slaying of a Montgomery, Alabama television news and feature reporter. The second-year law student is sentenced to death by electrocution, and he waits on Alabama's death row as his appeals begin their sluggish journey through the state and federal appellate system. He learns the harsh reality of life on The Row at the maximum prison facility in South Alabama where all executions are carried out. He is not deterred by the restrictive life on The Row and eventually earns his law degree and passes the bar exam. He sets out to overturn his own conviction while providing legal counsel to those who are destitute and are at the mercy of the system that has them marked for death. Meanwhile, a network of college alums are secretly working to help him avoid his date with the chair.