The Logic of Legal Requirements


Book Description

Does the law contain implicit exceptions to its own rules? If so, what consequence does that have for understanding the relationship between law and morality? This collection gathers leading legal philosophers to analyse the logical structure of legal norms, advancing the understanding of the general philosophy of law.




Reasoning with Rules


Book Description

Rule-applying legal arguments are traditionally treated as a kind of syllogism. Such a treatment overlooks the fact that legal principles and rules are not statements which describe the world, but rather means by which humans impose structure on the world. Legal rules create legal consequences, they do not describe them. This has consequences for the logic of rule- and principle-applying arguments, the most important of which may be that such arguments are defeasible. This book offers an extensive analysis of the role of rules and principles in legal reasoning, which focuses on the close relationship between rules, principles, and reasons. Moreover, it describes a logical theory which assigns a central place to the notion of reasons for and against a conclusion, and which is especially suited to deal with rules and principles.




Allowing for Exceptions


Book Description

Within limits, the law allows for exceptions. Or so we tend to think. In fact, the line between rules and exceptions is harder to draw than it seems. How are we to determine what counts as an exception and what as part of the relevant rule? The distinction has important practical implications. But legal theorists have found the notion of an exception surprisingly difficult to explain. This is the longstanding jurisprudential problem that this book seeks to solve.




Deontic Logic and Legal Systems


Book Description

A considerable number of books and papers have analyzed normative concepts using new techniques developed by logicians; however, few have bridged the gap between the English legal culture and the Continental (i.e. European and Latin American) tradition in legal philosophy. This book addresses this issue by offering an introductory study on the many possibilities that logical analysis offers the study of legal systems. The volume is divided into two sections: the first covers the basic aspects of classical and deontic logic and its connections, advancing an explanation of the most important topics of the discipline by comparing different systems of deontic logic and exploring some of the most important paradoxes in its domain. The second section deals with the role of logic in the analysis of legal systems by discussing in what sense deontic logic and the logic of norm-propositions are useful tools for a proper understanding of the systematic structure of law.




The Logic of Legal Argumentation


Book Description

Multi-modal argumentation with its logical, emotional, visceral and kisceral arguments is an important addition to logical argumentation, especially when real-life situations are considered. It does not discard logic but adds other modes of argumentation to complement it, to emphasize the realistic environments of communication. In this sense, the multi-modal theory is important for the area of legal argumentation, where even in the reasoning of judicial decisions traces of a flesh-and-blood personality, who decided the case and wrote the reasons, can be found. This book presents a comprehensive analysis of this informal logic in legal argumentation and its practicality within the law. It argues that by building on the dialectical and rhetorical models of legal argument, the former being important for clear cases while the latter for unclear ones, the multi-modal theory of legal argumentation brings together logic and psychology in a holistic or integral perspective. The approach is not only descriptive, identifying the traces of alternate arguments in judicial decisions, but is also normative, presenting the criteria for evaluation that multi-modal arguments need to face to attain validity in the legal context. The work will be of interest to academics and researchers in the areas of Legal Theory, Legal Linguistics, Philosophy of Law, and Communication Studies.




Law and Logic


Book Description

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.




Logic in the Theory and Practice of Lawmaking


Book Description

This book presents the current state of the art regarding the application of logical tools to the problems of theory and practice of lawmaking. It shows how contemporary logic may be useful in the analysis of legislation, legislative drafting and legal reasoning concerning different contexts of law making. Elaborations of the process of law making have variously emphasised its political, social or economic aspects. Yet despite strong interest in logical analyses of law, questions remains about the role of logical tools in law making. This volume attempts to bridge that gap, or at least to narrow it, drawing together some important research problems—and some possible solutions—as seen through the work of leading contemporary academics. The volume encompasses 20 chapters written by authors from 16 countries and it presents diversified views on the understanding of logic (from strict mathematical approaches to the informal, argumentative ones) and differentiated choices concerning the aspects of law making taken into account. The book presents a broad set of perspectives, insights and results into the emerging field of research devoted to the logical analysis of the area of creation of law. How does logic inform lawmaking? Are legal systems consistent and complete? How can legal rules be represented by means of formal calculi and visualization techniques? Does the structure of statutes or of legal systems resemble the structure of deductive systems? What are the logical relations between the basic concepts of jurisprudence that constitute the system of law? How are theories of legal interpretation relevant to the process of legislation? How might the statutory text be analysed by means of contemporary computer programs? These and other questions, ranging from the theoretical to the immediately practical, are addressed in this definitive collection.




Handbook of Legal Reasoning and Argumentation


Book Description

This handbook addresses legal reasoning and argumentation from a logical, philosophical and legal perspective. The main forms of legal reasoning and argumentation are covered in an exhaustive and critical fashion, and are analysed in connection with more general types (and problems) of reasoning. Accordingly, the subject matter of the handbook divides in three parts. The first one introduces and discusses the basic concepts of practical reasoning. The second one discusses the general structures and procedures of reasoning and argumentation that are relevant to legal discourse. The third one looks at their instantiations and developments of these aspects of argumentation as they are put to work in the law, in different areas and applications of legal reasoning.




Demystifying Legal Reasoning


Book Description

Demystifying Legal Reasoning defends the proposition that there are no special forms of reasoning peculiar to law. Legal decision makers engage in the same modes of reasoning that all actors use in deciding what to do: open-ended moral reasoning, empirical reasoning, and deduction from authoritative rules. This book addresses common law reasoning when prior judicial decisions determine the law, and interpretation of texts. In both areas, the popular view that legal decision makers practise special forms of reasoning is false.




Force of Logic


Book Description

Have you ever read a legal opinion and come across an odd term like the fallacy of denying the antecedent, the fallacy of the undistributed middle, or the fallacy of the illicit process and wondered how you missed that in law school? You’re not alone: every day, lawyers make arguments that fatally trespass the rules of formal logic—without realizing it—because traditional legal education often overlooks imparting the practical wisdom of ancient philosophy as it teaches students how to “think like a lawyer.” In his book, The Force of Logic: Using Formal Logic as a Tool in the Craft of Legal Argument, lawyer and law professor Stephen M. Rice guides you to develop your powers of legal reasoning in a new way, through effective tips and tactics that will forever change the way you argue your cases. Rice contends that formal logic provides tools that help lawyers distinguish good arguments from bad ones and, moreover, that they are simple to learn and use. When you know how to recognize logical fallacies, you will not only strengthen your own arguments, but you will also be able to punch holes in your opponent’s—and that can make the difference between winning and losing. In this book, Rice builds on the theoretical foundation of formal logic by demonstrating logical fallacies through the use of anecdotes, examples, graphical illustrations, and exercises for you to try that are derived from common case documents. It is a hands-on primer that presents a practical approach for understanding and mastering the place of formal logic in the art of legal reasoning. Whether you are a lawyer, a judge, a scholar, or a student, The Force of Logic will inspire you to love legal argument, and appreciate its beauty and complexity in a brand new way.