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This book constitutes the refereed proceedings of the 8th International Workshop on Deontic Logic in Computer Science, DEON 2006, held in Utrecht, Netherlands in July 2006. Presents 18 revised full papers together with the abstracts of 3 invited talks. The papers are devoted to the relationship between normative concepts and computer science, artificial intelligence, philosophy, organization theory, and law. Special emphasis is placed on artificial normative systems.
A useful logic in which to specify normative system behaviour, deontic logic has a broad spectrum of possible applications within the field: from legal expert systems to natural language processing, database integrity to electronic contracting and the specification of fault-tolerant software.
This volume presents the refereed proceedings of the 12th International Conference on Deontic Logic and Normative Systems, DEON 2014, held in Ghent, Belgium, in July 2014. The 17 revised papers and the 2 invited papers included in this volume were carefully reviewed and selected from 31 submissions. Topics covered include challenges from natural language for deontic logic; the relationship between deontic and other types of modality: epistemic modality, imperatives, supererogatory, etc.; the deontic paradoxes; the modeling of normative concepts other than obligation and permission, e.g., values; the game-theoretical aspects of deontic reasoning; the emergence of norms; norms from a conversational and pragmatic point of view; and norms and argumentation.
These 13 papers collected from several meetings of the Society for Exact Philosophy from 1993-96 take a variety of approaches to the task of integrating normative and defeasible reasoning. While most of the papers propose some version of defeasible deontic logic, a few consider alternatives approaches to solving some of the puzzles of normative reasoning that deontic reasoning has failed to resolve. The authors also describe standard deontic logic. Name index only. Annotation copyrighted by Book News, Inc., Portland, OR
"Logic and law have a long history in common, but the influence has been mostly one-sided, except perhaps in the 5th and 6th centuries B.C., where disputes at the market place or in tribunals in Greece seem to have stimulated a lot of reflection among sophistic philosophers on such topics as language and truth. Most of the time it was logic that influenced legal thinking, but in the last 50 years logicians began to be interested in normative concepts and hence in law"--
This book describes extensions of deontic logic. Deontic logic is a branch of philosophical logic involving reasoning with norms, obligations, prohibitions and permissions. The extensions concern the logical structure of legal rules and legal reasoning. Their function is to improve the representation of legal knowledge and enhance deontic logic through increased expressibility. The resulting formulas acquire new meanings, not expressible in standard deontic logic, which are subject to fresh interpretations. The author offers an extensive analysis of the representation of actors, to whom the norms are directed, and authorities who enact the norms. Moreover, a distinction is made between enactment and applicability. A modality of enactment can be used to express inconsistent enacted norms in a consistent way. An authority-hierarchy is introduced to filter out the applicable norms from the set of enacted norms. Some related philosophical questions will be discussed regarding the applications of formalisms that are intrinsic to practical science with respect to `consistency' and `universality'. The formalisms and applications considered here are relevant for law, philosophy and computer science, with a special focus on the improvement of legal expert systems and intelligent support for legal professionals.
The Handbook of Deontic Logic and Normative Systems presents a detailed overview of the main lines of research on contemporary deontic logic and related topics. Although building on decades of previous work in the field, it is the first collection to take into account the significant changes in the landscape of deontic logic that have occurred in the past twenty years. These changes have resulted largely, though not entirely, from the interaction of deontic logic with a variety of other fields, including computer science, legal theory, organizational theory, economics, and linguistics. This first volume of the Handbook is divided into three parts, containing nine chapters in all, each written by leading experts in the field. The first part concentrates on historical foundations. The second examines topics of central interest in contemporary deontic logic. The third presents some new logical frameworks that have now become part of the mainstream literature. A second volume of the Handbook is currently in preparation, and there may be a third after that.
This volume presents a variety of papers bearing on the relation between deontic logics, logics of action, and normative systems, i.e. systems of or about interacting agents (computers, human beings, corporations, etc.) whose behaviour is subject to ideal constraints that may not always be fulfilled in practice. The papers range from theoretical studies of the logical and conceptual tools needed, to studies of various applications. The set of papers collected in this book should be of interest to investigators working in a variety of fields, from philosophy, logic and legal theory to artificial intelligence, computer and management sciences, since it covers topics ranging from theoretical research on foundational issues in deontic and action logics, defeasible reasoning, decision theory, ethical theory, and legal theory, to research on a variety of issues relevant to applications connected with expert systems in the law, document specification, automation of defeasible reasoning, specification of responsibilities and powers in organizations, normative systems specification, confidentiality in database systems, and a host of other applications.
Time is ubiquitous in information systems. Almost every enterprise faces the problem of its data becoming out of date. However, such data is often valu able, so it should be archived and some means to access it should be provided. Also, some data may be inherently historical, e.g., medical, cadastral, or ju dicial records. Temporal databases provide a uniform and systematic way of dealing with historical data. Many languages have been proposed for tem poral databases, among others temporal logic. Temporal logic combines ab stract, formal semantics with the amenability to efficient implementation. This chapter shows how temporal logic can be used in temporal database applica tions. Rather than presenting new results, we report on recent developments and survey the field in a systematic way using a unified formal framework [GHR94; Ch094]. The handbook [GHR94] is a comprehensive reference on mathematical foundations of temporal logic. In this chapter we study how temporal logic is used as a query and integrity constraint language. Consequently, model-theoretic notions, particularly for mula satisfaction, are of primary interest. Axiomatic systems and proof meth ods for temporal logic [GHR94] have found so far relatively few applications in the context of information systems. Moreover, one needs to bear in mind that for the standard linearly-ordered time domains temporal logic is not re cursively axiomatizable [GHR94]' so recursive axiomatizations are by necessity incomplete.
In consequence of an increased interest in problems relating to human action, normative concepts have been much discussed by philosophers and logicians in the past twenty years. Deontic logic, which deals with the normative use of language and such normative concepts as obligation, prohibition and permission, has become one of the most intensively cultivated areas of formal logic. Important investigations have been carried out which have shed considerable light on various aspects of the normative phenomenon and a great number of different systems of deontic logic have been developed. This progressive proliferation of deontic logics not only shows the great interest of logicians in normative discourse, but also reflects a basic perplexity: the lack of suitable criteria of adequacy for the interpretation of deontic calculi and hence difficulty in decid ing which of the systems provides the best reconstruction of the underlying normative concepts and can therefore be applied with the most fruitful results. This difficulty is so great that some authors have even expressed doubts about the practical usefulness of deontic logic. One of the sources of this perplexity lies in the absence of a well established pre-analytical basis for formal studies. It is sometimes even uncertain what the intuitive notions are that deontic logicians intend to reconstruct. In talking about obligations, prohibitions and permissions, they usually have in mind moral norms. But the choice of moral norm as an explicandum for the construction of a logic of norms has several disadvantages.