Logical Tools for Modelling Legal Argument

Logical Tools for Modelling Legal Argument

Author: H. Prakken

Publisher: Springer Science & Business Media

Published: 2013-04-17

Total Pages: 319

ISBN-13: 9401589755

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This book is a revised and extended version of my PhD Thesis 'Logical Tools for Modelling Legal Argument', which I defended on 14 January 1993 at the Free University Amsterdam. The first five chapters of the thesis have remained almost completely unchanged but the other chapters have undergone considerable revision and expansion. Most importantly, I have replaced the formal argument-based system of the old Chapters 6, 7 and 8 with a revised and extended system, whieh I have developed during the last three years in collaboration with Giovanni Sartor. Apart from some technical improvements, the main additions to the old system are the enriehment of its language with a nonprovability operator, and the ability to formalise reasoning about preference criteria. Moreover, the new system has a very intuitive dialectieal form, as opposed to the rather unintuitive fixed-point appearance of the old system. Another important revision is the split of the old Chapter 9 into two new chapters. The old Section 9. 1 on related research has been updated and expanded into a whole chapter, while the rest of the old chapter is now in revised form in Chapter 10. This chapter also contains two new contributions, a detailed discussion of Gordon's Pleadings Game, and a general description of a multi-Iayered overall view on the structure of argu mentation, comprising a logieal, dialectical, procedural and strategie layer. Finally, in the revised conclusion I have paid more attention to the relevance of my investigations for legal philosophy and argumentation theory.


Book Synopsis Logical Tools for Modelling Legal Argument by : H. Prakken

Download or read book Logical Tools for Modelling Legal Argument written by H. Prakken and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a revised and extended version of my PhD Thesis 'Logical Tools for Modelling Legal Argument', which I defended on 14 January 1993 at the Free University Amsterdam. The first five chapters of the thesis have remained almost completely unchanged but the other chapters have undergone considerable revision and expansion. Most importantly, I have replaced the formal argument-based system of the old Chapters 6, 7 and 8 with a revised and extended system, whieh I have developed during the last three years in collaboration with Giovanni Sartor. Apart from some technical improvements, the main additions to the old system are the enriehment of its language with a nonprovability operator, and the ability to formalise reasoning about preference criteria. Moreover, the new system has a very intuitive dialectieal form, as opposed to the rather unintuitive fixed-point appearance of the old system. Another important revision is the split of the old Chapter 9 into two new chapters. The old Section 9. 1 on related research has been updated and expanded into a whole chapter, while the rest of the old chapter is now in revised form in Chapter 10. This chapter also contains two new contributions, a detailed discussion of Gordon's Pleadings Game, and a general description of a multi-Iayered overall view on the structure of argu mentation, comprising a logieal, dialectical, procedural and strategie layer. Finally, in the revised conclusion I have paid more attention to the relevance of my investigations for legal philosophy and argumentation theory.

Logical Models of Legal Argumentation

Logical Models of Legal Argumentation

Author: H. Prakken

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 215

ISBN-13: 9401156689

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In the study of forms of legal reasoning, logic and argumentation theory long followed separate tracks. `Legal logicians' tended to focus on a deductive reconstruction of justifying a decision, disregarding the dialectical process leading to the chosen justification. Others instead emphasized the adversarial and discretionary nature of legal reasoning, involving reasonable evaluation of alternative choices, and the use of analogical reasoning. Recently, however, developments in Artificial Intelligence and Law have paved the way for overcoming this separation. Logic has widened its scope to defensible argumentation, and informal accounts of analogy and dialectics have inspired the construction of computer programs. Thus the prospect is emerging of an integrated logical and dialectical account of legal argument, adding to the understanding of legal reasoning, and providing a formal basis for computer tools that assist and mediate legal debates while leaving room for human initiative. This book presents contributions to this development. From a logical point of view it covers topics such as evaluating conflicting arguments, weighing reasons, modelling legal disputes as a dialogue game, the role of the burden of proof, the relation between principles, rules, reasons and facts, and the relation between deductive and nondeductive arguments. Written by leading scholars in the field and building on recent developments in logic and Artificial Intelligence, the chapters provide a state-of-the-art account of research on the logical aspects of legal argument.


Book Synopsis Logical Models of Legal Argumentation by : H. Prakken

Download or read book Logical Models of Legal Argumentation written by H. Prakken and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the study of forms of legal reasoning, logic and argumentation theory long followed separate tracks. `Legal logicians' tended to focus on a deductive reconstruction of justifying a decision, disregarding the dialectical process leading to the chosen justification. Others instead emphasized the adversarial and discretionary nature of legal reasoning, involving reasonable evaluation of alternative choices, and the use of analogical reasoning. Recently, however, developments in Artificial Intelligence and Law have paved the way for overcoming this separation. Logic has widened its scope to defensible argumentation, and informal accounts of analogy and dialectics have inspired the construction of computer programs. Thus the prospect is emerging of an integrated logical and dialectical account of legal argument, adding to the understanding of legal reasoning, and providing a formal basis for computer tools that assist and mediate legal debates while leaving room for human initiative. This book presents contributions to this development. From a logical point of view it covers topics such as evaluating conflicting arguments, weighing reasons, modelling legal disputes as a dialogue game, the role of the burden of proof, the relation between principles, rules, reasons and facts, and the relation between deductive and nondeductive arguments. Written by leading scholars in the field and building on recent developments in logic and Artificial Intelligence, the chapters provide a state-of-the-art account of research on the logical aspects of legal argument.

Logical Models of Legal Argumentation

Logical Models of Legal Argumentation

Author: Henry Prakken

Publisher:

Published: 1996

Total Pages: 212

ISBN-13:

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Book Synopsis Logical Models of Legal Argumentation by : Henry Prakken

Download or read book Logical Models of Legal Argumentation written by Henry Prakken and published by . This book was released on 1996 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling Legal Argument

Modeling Legal Argument

Author: Kevin D. Ashley

Publisher: MIT Press (MA)

Published: 1990

Total Pages: 360

ISBN-13:

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"Modeling Legal Argument "provides a comprehensive treatment of case-based reasoning and a detailed description of a computer program called Hypo, that models the way attorneys argue with cases, real and hypothetical. The program offers significant advantages over "keyword" case retrieval systems in the legal field and demonstrates how to design expert systems that assist the user by presenting reasonable alternative answers on all sides of an issue and by citing case examples to explain their advice.Hypo analyzes problem situations dealing with trade secrets disputes, retrieves relevant legal cases from its database and fashions them into reasonable legal arguments about who should win. The arguments demonstrate the program's ability to reason symbolically with past cases, to draw factual analogies between cases, to cite them in arguments, to distinguish them, and to pose counter-examples and hypotheticals based on past cases."Modeling Legal Argument "discusses the law as a paradigm of case-based argument, introduces Hypo and its adversarial reasoning process, provides an overview of the Hypo program, and gives extended examples of the model's reasoning capabilities. It describes the case knowledge base, a dimensional index, basic mechanisms of case-based reasoning, and offers a theory of case-based argument in Hypo. Ashley evaluates Hypo's performance and takes up adversarial case-based reasoning beyond the law and extensions of the Hypo model.Kevin D. Ashley is a Research Scientist at the Learning Research an Development Center and Assistant Professor of Law at the University of Pittsburgh. "Modeling Legal Argument is "included in the Artificial Intelligence and Legal Reasoning series, edited by L. Thorne McCarty and Edwina L. Rissland.


Book Synopsis Modeling Legal Argument by : Kevin D. Ashley

Download or read book Modeling Legal Argument written by Kevin D. Ashley and published by MIT Press (MA). This book was released on 1990 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Modeling Legal Argument "provides a comprehensive treatment of case-based reasoning and a detailed description of a computer program called Hypo, that models the way attorneys argue with cases, real and hypothetical. The program offers significant advantages over "keyword" case retrieval systems in the legal field and demonstrates how to design expert systems that assist the user by presenting reasonable alternative answers on all sides of an issue and by citing case examples to explain their advice.Hypo analyzes problem situations dealing with trade secrets disputes, retrieves relevant legal cases from its database and fashions them into reasonable legal arguments about who should win. The arguments demonstrate the program's ability to reason symbolically with past cases, to draw factual analogies between cases, to cite them in arguments, to distinguish them, and to pose counter-examples and hypotheticals based on past cases."Modeling Legal Argument "discusses the law as a paradigm of case-based argument, introduces Hypo and its adversarial reasoning process, provides an overview of the Hypo program, and gives extended examples of the model's reasoning capabilities. It describes the case knowledge base, a dimensional index, basic mechanisms of case-based reasoning, and offers a theory of case-based argument in Hypo. Ashley evaluates Hypo's performance and takes up adversarial case-based reasoning beyond the law and extensions of the Hypo model.Kevin D. Ashley is a Research Scientist at the Learning Research an Development Center and Assistant Professor of Law at the University of Pittsburgh. "Modeling Legal Argument is "included in the Artificial Intelligence and Legal Reasoning series, edited by L. Thorne McCarty and Edwina L. Rissland.

Fundamentals of Legal Argumentation

Fundamentals of Legal Argumentation

Author: Eveline T. Feteris

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 236

ISBN-13: 9401592195

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Legal argumentation is a distinctively multidisciplinary field of inquiry. It draws its data, assumptions and methods from disciplines such as legal theory, legal philosophy, logic, argumentation theory, rhetoric, linguistics, literary theory, philosophy, sociology, and artificial intelligence. This presents the growing group of interested scholars and students with a problem of access, since, even for those active in the field, it is not common to have acquired a familiarity with relevant aspects of each discipline that enters into this multidisciplinary matrix. Fundamentals of Legal Argumentation offers its readers a unique and comprehensive survey of the various theoretical influences which have informed the study of legal argumentation. It discusses salient backgrounds to this field as well as all major approaches and trends in the contemporary research. It surveys relevant theoretical factors both from various continental law traditions and common law countries.


Book Synopsis Fundamentals of Legal Argumentation by : Eveline T. Feteris

Download or read book Fundamentals of Legal Argumentation written by Eveline T. Feteris and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Legal argumentation is a distinctively multidisciplinary field of inquiry. It draws its data, assumptions and methods from disciplines such as legal theory, legal philosophy, logic, argumentation theory, rhetoric, linguistics, literary theory, philosophy, sociology, and artificial intelligence. This presents the growing group of interested scholars and students with a problem of access, since, even for those active in the field, it is not common to have acquired a familiarity with relevant aspects of each discipline that enters into this multidisciplinary matrix. Fundamentals of Legal Argumentation offers its readers a unique and comprehensive survey of the various theoretical influences which have informed the study of legal argumentation. It discusses salient backgrounds to this field as well as all major approaches and trends in the contemporary research. It surveys relevant theoretical factors both from various continental law traditions and common law countries.

Law and Logic

Law and Logic

Author: Joseph Horovitz

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 247

ISBN-13: 3709171113

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This book has two related aims: to investigate the frequently voiced claim that legal argument is nonformal in nature and, within the limits of such an investigation, to ascertain the most general proper ties of law as a rational system. Examination of a number of views of legal argument, selected from recent discussions in Germany, Belgium, and the English-speaking countries, will lead to the follow ing main conclusions. The nonformalistic conceptions of the logic of legal argument are ambiguous and unclear. Moreover, insofar as these conceptions are capable of clarification in the light of recent analytical methodology, they can be seen to be either mistaken or else compatible with the formalistic position. Because law is socially directive and coordinative, it is dependent upon theoretical psycho sociology and calls, in principle, for a deontic and inductive logic. The primary function of legal argument is to provide continuing reinterpretation and confirmation of legal rules, conceived as theo retical prescriptions. On the basis of this conception, the old juris prudential conflict between formalism and rule-scepticism appears substantially resolved. Aristotle, the founder of the theory of argument, conceived it as "the science of establishing conclusions" (bnO'l;~fl'YJ &no~e!"u,,~), designed to guide people in rational argumentation. In time, how ever, logic forsook its practical function and developed as a highly abstract and disinterested study, today called "formal logic"; and the theory of practical argument was either neglected or relegated to an appendix to rhetoric.


Book Synopsis Law and Logic by : Joseph Horovitz

Download or read book Law and Logic written by Joseph Horovitz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has two related aims: to investigate the frequently voiced claim that legal argument is nonformal in nature and, within the limits of such an investigation, to ascertain the most general proper ties of law as a rational system. Examination of a number of views of legal argument, selected from recent discussions in Germany, Belgium, and the English-speaking countries, will lead to the follow ing main conclusions. The nonformalistic conceptions of the logic of legal argument are ambiguous and unclear. Moreover, insofar as these conceptions are capable of clarification in the light of recent analytical methodology, they can be seen to be either mistaken or else compatible with the formalistic position. Because law is socially directive and coordinative, it is dependent upon theoretical psycho sociology and calls, in principle, for a deontic and inductive logic. The primary function of legal argument is to provide continuing reinterpretation and confirmation of legal rules, conceived as theo retical prescriptions. On the basis of this conception, the old juris prudential conflict between formalism and rule-scepticism appears substantially resolved. Aristotle, the founder of the theory of argument, conceived it as "the science of establishing conclusions" (bnO'l;~fl'YJ &no~e!"u,,~), designed to guide people in rational argumentation. In time, how ever, logic forsook its practical function and developed as a highly abstract and disinterested study, today called "formal logic"; and the theory of practical argument was either neglected or relegated to an appendix to rhetoric.

Argument Types and Fallacies in Legal Argumentation

Argument Types and Fallacies in Legal Argumentation

Author: Thomas Bustamante

Publisher: Springer

Published: 2015-04-07

Total Pages: 222

ISBN-13: 3319161482

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This book provides theoretical tools for evaluating the soundness of arguments in the context of legal argumentation. It deals with a number of general argument types and their particular use in legal argumentation. It provides detailed analyses of argument from authority, argument ad hominem, argument from ignorance, slippery slope argument and other general argument types. Each of these argument types can be used to construct arguments that are sound as well as arguments that are unsound. To evaluate an argument correctly one must be able to distinguish the sound instances of a certain argument type from its unsound instances. This book promotes the development of theoretical tools for this task.


Book Synopsis Argument Types and Fallacies in Legal Argumentation by : Thomas Bustamante

Download or read book Argument Types and Fallacies in Legal Argumentation written by Thomas Bustamante and published by Springer. This book was released on 2015-04-07 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides theoretical tools for evaluating the soundness of arguments in the context of legal argumentation. It deals with a number of general argument types and their particular use in legal argumentation. It provides detailed analyses of argument from authority, argument ad hominem, argument from ignorance, slippery slope argument and other general argument types. Each of these argument types can be used to construct arguments that are sound as well as arguments that are unsound. To evaluate an argument correctly one must be able to distinguish the sound instances of a certain argument type from its unsound instances. This book promotes the development of theoretical tools for this task.

Approaches to Legal Rationality

Approaches to Legal Rationality

Author: Dov M. Gabbay

Publisher: Springer Science & Business Media

Published: 2010-10-04

Total Pages: 419

ISBN-13: 9048195888

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Legal theory, political sciences, sociology, philosophy, logic, artificial intelligence: there are many approaches to legal argumentation. Each of them provides specific insights into highly complex phenomena. Different disciplines, but also different traditions in disciplines (e.g. analytical and continental traditions in philosophy) find here a rare occasion to meet. The present book contains contributions, both historical and thematic, from leading researchers in several of the most important approaches to legal rationality. One of the main issues is the relation between logic and law: the way logic is actually used in law, but also the way logic can make law explicit. An outstanding group of philosophers, logicians and jurists try to meet this issue. The book is more than a collection of papers. However different their respective conceptual tools may be, the authors share a common conception: legal argumentation is a specific argumentation context.


Book Synopsis Approaches to Legal Rationality by : Dov M. Gabbay

Download or read book Approaches to Legal Rationality written by Dov M. Gabbay and published by Springer Science & Business Media. This book was released on 2010-10-04 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Legal theory, political sciences, sociology, philosophy, logic, artificial intelligence: there are many approaches to legal argumentation. Each of them provides specific insights into highly complex phenomena. Different disciplines, but also different traditions in disciplines (e.g. analytical and continental traditions in philosophy) find here a rare occasion to meet. The present book contains contributions, both historical and thematic, from leading researchers in several of the most important approaches to legal rationality. One of the main issues is the relation between logic and law: the way logic is actually used in law, but also the way logic can make law explicit. An outstanding group of philosophers, logicians and jurists try to meet this issue. The book is more than a collection of papers. However different their respective conceptual tools may be, the authors share a common conception: legal argumentation is a specific argumentation context.

Argumentation Methods for Artificial Intelligence in Law

Argumentation Methods for Artificial Intelligence in Law

Author: Douglas Walton

Publisher: Springer Science & Business Media

Published: 2005-09-30

Total Pages: 283

ISBN-13: 3540278818

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Use of argumentation methods applied to legal reasoning is a relatively new field of study. The book provides a survey of the leading problems, and outlines how future research using argumentation-based methods show great promise of leading to useful solutions. The problems studied include not only these of argument evaluation and argument invention, but also analysis of specific kinds of evidence commonly used in law, like witness testimony, circumstantial evidence, forensic evidence and character evidence. New tools for analyzing these kinds of evidence are introduced.


Book Synopsis Argumentation Methods for Artificial Intelligence in Law by : Douglas Walton

Download or read book Argumentation Methods for Artificial Intelligence in Law written by Douglas Walton and published by Springer Science & Business Media. This book was released on 2005-09-30 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of argumentation methods applied to legal reasoning is a relatively new field of study. The book provides a survey of the leading problems, and outlines how future research using argumentation-based methods show great promise of leading to useful solutions. The problems studied include not only these of argument evaluation and argument invention, but also analysis of specific kinds of evidence commonly used in law, like witness testimony, circumstantial evidence, forensic evidence and character evidence. New tools for analyzing these kinds of evidence are introduced.

Legal Reasoning

Legal Reasoning

Author: Jovan Brkić

Publisher: Peter Lang Incorporated, International Academic Publishers

Published: 1985

Total Pages: 344

ISBN-13:

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Legal Reasoning: Semantic and Logical Analysis brings together for the sophisticated and serious reader the analytic tools of several disciplines needed for a systematic and exhaustive treatment of legal reasoning. Specifically, these are the analytic tools for conceptual analysis, linguistic and logical structures. For example, the reader of Legal Reasoning will be able to learn which modern tools for the analysis of concepts like insanity, justice, property, crime, etc., are available and how far they can accomplish their task. Or, what computerization and mathe- matical modeling are all about and what they conceivably can do for the legal process. And, in general, how reliable legal, that is, intuitive reasoning is in practice and what formal logic can do for it.


Book Synopsis Legal Reasoning by : Jovan Brkić

Download or read book Legal Reasoning written by Jovan Brkić and published by Peter Lang Incorporated, International Academic Publishers. This book was released on 1985 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Legal Reasoning: Semantic and Logical Analysis brings together for the sophisticated and serious reader the analytic tools of several disciplines needed for a systematic and exhaustive treatment of legal reasoning. Specifically, these are the analytic tools for conceptual analysis, linguistic and logical structures. For example, the reader of Legal Reasoning will be able to learn which modern tools for the analysis of concepts like insanity, justice, property, crime, etc., are available and how far they can accomplish their task. Or, what computerization and mathe- matical modeling are all about and what they conceivably can do for the legal process. And, in general, how reliable legal, that is, intuitive reasoning is in practice and what formal logic can do for it.