Bayesian models of legal arguments generally aim to produce a single integrated model, combining each of the legal arguments under consideration. This combined approach implicitly assumes that variables and their relationships can be represented without any contradiction or misalignment, and in a way that makes sense with respect to the competing argument narratives. This paper describes a novel approach to compare and ‘average’ Bayesian models of legal arguments that have been built independently and with (...) no attempt to make them consistent in terms of variables, causal assumptions or parameterization. The approach involves assessing whether competing models of legal arguments are explained or predict facts uncovered before or during the trial process. Those models that are more heavily disconfirmed by the facts are given lower weight, as model plausibility measures, in the Bayesian model comparison and averaging framework adopted. In this way a plurality of arguments is allowed yet a single judgement based on all arguments is possible and rational. (shrink)

In this paper a theoretical definition that helps to explain how the logical structure of legal presumptions is constructed by applying the Carneades model of argumentation developed in artificial intelligence. Using this model, it is shown how presumptions work as devices used in evidentiary reasoning in law in the event of a lack of evidence to assist a chain of reasoning to move forward to prove or disprove a claim. It is shown how presumptions work as practical devices that (...) may be useful in cases in which there is insufficient evidence to prove the claim to an appropriate standard of proof. (shrink)

In this paper we use a series of examples to show how oppositions and dichotomies are fundamental in legal argumentation, and vitally important to be aware of, because of their twofold nature. On the one hand, they are argument structures underlying various kinds of rational argumentation commonly used in law as a means of getting to the truth in a conflict of opinion under critical discussion by two opposing sides before a tryer of fact. On the other hand, they (...) are argument structures underling moves made in strategic advocacy by both sides that function as platforms for different kinds of questionable argumentation tactics and moves that are in some instances tricky and deceptive. (shrink)

We argue that legal argumentation, as the subject matter as well as a special subfield of Argumentation Studies (AS), has to be examined by making skilled use of the full panoply of tools such as argumentation and story schemes which are at the forefront of current work in AS. In reviewing the literature, we make explicit our own methodological choices (particularly regarding the place of normative deliberation in practical reasoning) and then illustrate the implications of such an approach through (...) the analysis of a case study in the English law of evidence. We argue that a clear distinction must be drawn between practical argumentation and stories. Because of the institutional separation between legal judgment and fact-finding in common-law jury trials, we argue for the combination of argument and story-based analysis. (shrink)

This paper proposes an argumentation-based procedure for legal interpretation, by reinterpreting the traditional canons of textual interpretation in terms of argumentation schemes, which are then classified, formalized, and represented through argument visualization and evaluation tools. The problem of statutory interpretation is framed as one of weighing contested interpretations as pro and con arguments. The paper builds an interpretation procedure by formulating a set of argumentation schemes that can be used to comparatively evaluate the types of arguments used (...) in cases of contested statutory interpretation in law. A simplified version of the Carneades Argumentation System is applied in a case analysis showing how the procedure works. A logical model for statutory interpretation is finally presented, covering pro-tanto and all-things-considered interpretive conclusions. -/- . (shrink)

Resumen Este trabajo consiste en un análisis histórico de textos que proceden de un expediente archivístico de Cartagena de Indias entre 1715 y 1717. Los autos son textos administrativos que poseen diversas funciones en las relaciones institucionales entre metrópoli y colonias, tal como la de “emitir opinión”. En la tipología textual indiana, esta función se denomina consulta o parecer, y se caracteriza por el uso de un predicado de tipo doxástico. Para el análisis hemos adoptado las perspectivas teóricas del análisis (...) histórico del discurso y de la sociopragmática histórica. El estudio se completa con un análisis cuantitativo que permite resaltar cuáles son los rasgos lingüísticos a los que se vincula la intensificación y la atenuación en el subtipo debate dentro del registro legal en el español de la Cartagena del siglo XVIII. La conclusión sugiere que los recursos lingüísticos encontrados aumenta la intención persuasiva de la argumentación característica de los autos cartagineses. (shrink)

In Wilmot-Smith’s recent ‘Law, “Ought”, and “Can”,’ he argues that legal obligation does not imply ability. In this short reply, I show that Wilmot-Smith’s arguments do not withstand critical scrutiny. In section 1, I attack Wilmot-Smith’s argument for the claim that allowing for impossible obligations makes for a better legal system, and I introduce positive grounds for thinking otherwise. In section 2, I show that, even if Wilmot-Smith had established that impossible obligations make for a better (...) class='Hi'>legal system, his subsequent attack on OIC fails. (shrink)

I argue that legal punishment is morally wrong because it’s too morally risky. I first briefly explain how my argument differs from similar ones in the philosophical literature on legal punishment. Then I explain why legal punishment is morally risky, argue that it’s too morally risky, and discuss objections. In a nutshell, my argument goes as follows. Legal punishment is wrong because we can never sufficiently reduce the risk of doing wrong when we legally punish people. (...) We can never sufficiently reduce this risk because wrongful punishment is much worse than wrongful non-punishment and because punishment’s permissibility depends on the answers to a variety of difficult philosophical questions about which we’re fallible. (shrink)

Social scientists have paid insufficient attention to the role of law in constituting the economic institutions of capitalism. Part of this neglect emanates from inadequate conceptions of the nature of law itself. Spontaneous conceptions of law and property rights that downplay the role of the state are criticized here, because they typically assume relatively small numbers of agents and underplay the complexity and uncertainty in developed capitalist systems. In developed capitalist economies, law is sustained through interaction between private agents, courts (...) and the legislative apparatus. Law is also a key institution for overcoming contracting uncertainties. It is furthermore a part of the power structure of society, and a major means by which power is exercised. This argument is illustrated by considering institutions such as property and the firm. Complex systems of law have played a crucial role in capitalist development and are also vital for developing economies. (shrink)

This book analyzes the uses of emotive language and redefinitions from pragmatic, dialectical, epistemic and rhetorical perspectives, investigating the relationship between emotions, persuasion and meaning, and focusing on the implicit dimension of the use of a word and its dialectical effects. It offers a method for evaluating the persuasive and manipulative uses of emotive language in ordinary and political discourse. Through the analysis of political speeches and legal arguments, the book offers a systematic study of emotive language in (...) argumentation, rhetoric, communication, political science and public speaking. (shrink)

In this paper it is shown how certain defeasible argumentation schemes can be used to represent the logical structure of the most common types of argument used for statutory interpretation both in civil and common law. The method is based on an argumentation structure in which the conclusion, namely, the meaning attributed to a legal source, is modeled as a claim that needs that is be supported by pro and con defeasible arguments. The defeasible nature of each scheme (...) is shown by means of critical questions, which identify the default conditions for the accepting interpretative arguments and provide a method for evaluating a given argument as weak or strong. (shrink)

This essay partly builds on and partly criticizes a striking idea of Dieter Henrich. Henrich argues that Kant's distinction in the first Critique between the question of fact (quid facti) and the question of law (quid juris) provides clues to the argumentative structure of a philosophical "Deduction". Henrich suggests that the unity of apperception plays a role analogous to a legal factum. By contrast, I argue, first, that the question of fact in the first Critique is settled by the (...) Metaphysical Deduction, which establishes the purity of origin of the Categories, and, second, that in the second Critique, the relevant factum is the Fact of Reason, which amounts to the fact that the Moral Law is pure in origin. (shrink)

Take “legal reality” to be the part of reality that actual legal thought and talk is dis- tinctively about, such as legal institutions, legal obligations, and legal norms. Our goal is to explore whether legal reality is disunified. To illustrate the issue, consider the possibility that an important metaphysical thesis such as positivism is true of one part of legal reality (legal institutions), but not another (legal norms). We offer two (...) class='Hi'>arguments that suggest that legal reality is disunified: one concerns the heteroge- neity of different entities that are part of legal reality; the other concerns variation within legal thought and talk. We then show that taking the possibility of the disunity of legal reality seriously has important upshots for how we think about the positivist and antipositivist traditions, the debate between them, and their relation to other parts of legal theory, such as critical legal theory and legal realism. (shrink)

In discussions of state surveillance, the values of privacy and security are often set against one another, and people often ask whether privacy is more important than national security.2 I will argue that in one sense privacy is more important than national security. Just what more important means is its own question, though, so I will be more precise. I will argue that national security rationales cannot by themselves justify some kinds of encroachments on individual privacy (including some kinds that (...) the United States has conducted). Specifically, I turn my attention to a recent, well publicized, and recently amended statute (section 215 of the USA Patriot Act3), a surveillance program based on that statute (the National Security Agency’s bulk metadata collection program), and a recent change to that statute that addresses some of the public controversy surrounding the surveillance program (the USA Freedom Act).4 That process (a statute enabling surveillance, a program abiding by that statute, a public controversy, and a change in the law) looks like a paradigm case of law working as it should; but I am not so sure. While the program was plausibly legal, I will argue that it was morally and legally unjustifiable. Specifically, I will argue that the interpretations of section 215 that supported the program violate what Jeremy Waldron calls “legal archetypes,”5 and that changes to the law illustrate one of the central features of legal archetypes and violation of legal archetypes. The paper proceeds as follows: I begin in Part 1 by setting out what I call the “basic argument” in favor of surveillance programs. This is strictly a moral argument about the conditions under which surveillance in the service of national security can be justified. In Part 2, I turn to section 215 and the bulk metadata surveillance program based on that section. I will argue that the program was plausibly legal, though based on an aggressive, envelope-pushing interpretation of the statute. I conclude Part 2 by describing the USA Freedom Act, which amends section 215 in important ways. In Part 3, I change tack. Rather than offering an argument for the conditions under which surveillance is justified (as in Part 1), I use the discussion of the legal interpretations underlying the metadata program to describe a key ambiguity in the basic argument, and to explain a distinct concern in the program. Specifically that it undermines a legal archetype. Moreover, while the USA Freedom Act does not violate legal archetypes, and hence meets a condition for justifiability, it helps illustrate why the bulk metadata program did violate archetypes. (shrink)

In this paper, I intend to deny the morality and instrumentality of the behavior known as bestiality, or the use of non-human animals for sexual gratification by human beings. While to most modern peoples, this hardly even seems like it should be in question, it should be the nature of the human mind to occasionally question long-standing traditional moray in the hopes of finding solutions to problems and the disbanding of superstition. It has been proposed that the moral question, and (...) by extension the legal question, of bestiality is based on traditions long outlived and unnecessary. In an IceNews.is article written in 2008, Norwegian lawyers were growing concerned over the prevalence of animal brothels in Denmark and the precedent it set for Norway [http://www.icenews.is, 2008]. The article, when coupled with the 2001 article title “Heavy Petting” by prominent Utilitarian philosopher, Peter Singer, proves that the issue of bestiality is no longer the purview of jokes and psychological discussions. I will argue against bestiality as a socially acceptable practice based on five standard premises. The standard premises I will present will contain notes in regard to: instrumentality; consent; disease transmission; deviance; and morality. There is significant work available on the harm done to the beast, so aside from brief summary; the question of the good of the beast is not in the focus. I will also ignore any religious concerns, either surrounding morality or freedom of practice. Instead, these arguments are in support of the moral identity of the individual and of society as a whole. (shrink)

In this paper, we present a survey of the development of the technique of argument diagramming covering not only the fields in which it originated - informal logic, argumentation theory, evidence law and legal reasoning – but also more recent work in applying and developing it in computer science and artificial intelligence. Beginning with a simple example of an everyday argument, we present an analysis of it visualised as an argument diagram constructed using a software tool. In the context (...) of a brief history of the development of diagramming, it is then shown how argument diagrams have been used to analyze and work with argumentation in law, philosophy and artificial intelligence. (shrink)

Anglo-American general jurisprudence remains preoccupied with the relationship of legality to morality. This has especially been so in the re-reading of Lon Fuller’s theory of an implied morality in any law. More often than not, Fuller has been said to distinguish between the identity of a discrete rule and something called ‘morality’. In this reading of Fuller, however, insufficient attention to what is signified by ‘morality’. Such an implied morality has been understood in terms of deontological duties, the Good life, (...) naturalism, and subjectively posited values. Each of these interpretations has a shared common denominator: namely, the distinction between ‘is’ and ‘ought’, ‘facts’ and ‘values’. Legality is said to be nested in an ‘is’ world. An ‘is’ cannot be derived from an ‘ought’. This essay aims to press this distinction further. Fuller, I intend to argue, does indeed accept the is/ought distinction as have his commentators. The associations of the ‘oughts’ with deontological duties, the Good life, naturalism and subjective values, however, have been misdirected. This has been so because Fuller presupposed that legality was a matter of a spatial structure. Non-law was situated outside the structure. If a legislator or judge considered matters outside the structure as if they were binding upon jurists and, for that matter, upon members of the legal structure, the law was not binding. The crucial incident of the structure was the boundary of the structure. Fuller’s structuralist theory of law offers the opportunity to better understand what he signified by ‘the internal morality of law’. I shall privilege several elements of his theory: the relation of legal units to a structure, the nature of a structure, the constituents of a structure (territorial space, its pillars and its matter); the forms of the legal structure; the centrifugal and centripetal structures, the structure and traditional theories of morality, the role of the legal official in a structure, and why the internal knowledge in the structure is binding. Fuller especially privileged two features of a legal structure. The one was the boundary of the structure. The second concerned the exteriority of the boundary. Both features presupposed a territorial sense view of legal knowledge. The legal mind analysed any social problem through the map of such a sense of legal space. By concentrating upon the discrete rule in isolation of the implied structural boundary to which the rule referred, commentators have attributed been misdirected in their analyses of Fuller’s theory of law and morality. My argument in this respect will proceed as follows. In order to clarify Fuller’s senses of the morality of law, I shall first outline what he means by a ‘structure’. Second, how is the structure related to legal knowledge? Third, what are the various forms of the structure? Fourth, is the structure centrifugal or centripetal? And finally, why is the structure binding? (shrink)

This article focuses on issues relating to legal normativity, emphasizing the way these matters have been elaborated in the works of Kelsen and Hart and later commentators on their theories. First, in Section 2, the author offers a view regarding the nature of law and legal normativity focusing on Kelsen's work (at least one reasonable reading of it). The argument is that the Basic Norm is presupposed when a citizen chooses to read the actions of legal officials (...) in a normative way. In this Kelsenian approach, all normative systems are structurally and logically similar, but each normative system is independent of every other system – thus, law is, in this sense, conceptually separate from morality. Second, in Section 3, the author turns to Hart's theory, analyzing the extent to which his approach views legal normativity as sui generis. This approach raises questions regarding what has become a consensus view in contemporary jurisprudence: that law makes moral claims. The author shows how a more deflationary (and less morally-flavored) understanding of the nature of law is tenable, and may, in fact, work better than current conventional (morality-focused) understandings. (shrink)

This chapter discusses two different issues about the relationship between legal positivism and robust normativity (understood as the most authoritative kind of normativity to which we appeal). First, the chapter argues that, in many contexts when discussing “legal positivism” and “legal antipositivism”, the discussion should be shifted from whether legal facts are ultimately partly grounded in moral facts to whether they are ultimately partly grounded in robustly normative facts. Second, the chapter explores an important difference within (...) the kinds of arguments that legal philosophers give for the (purported) truth of legal positivism. The difference concerns whether (purportedly) robustly normative facts are appealed to as premises in those arguments or not. (A closely connected issue is whether (purportedly) normative facts that bear one or more important connections to robustly normative facts are appealed to in premises to those arguments.) The chapter argues that thinking about this dividing line helps people better situate the positivist/antipositivist dispute, better understand the space of views in legal philosophy, better evaluate those views, and avoid having merely verbal disputes. (shrink)

Interpreting the content of the law is not limited to what a relevant lawmaker utters. This paper examines the extent to which implied and implicit content is part of the law, and specifically whether the Gricean concept of conversational implicature is relevant in determining the content of law. Recent work has focused on how this question relates to acts of legislation. This paper extends the analysis to case law and departs from the literature on several key issues. The paper's argument (...) is based upon two points: Precedent-setting judicial opinions may consist of multiple conversations, of which some entail opposing implicata, and if a particular precedent-setting judicial opinion consists of multiple conversations, of which some entail opposing implicata, then no meaningful conversational implicatum is part of the content of that particular precedent-setting opinion. Nevertheless, the paper's conclusion leaves open the prospect of gleaning something in between conversational implicature and what is literally said, namely, conversational impliciture. (shrink)

The innovative Moral Impact Theory (“MIT”) of law claims that the moral impacts of legal institutional actions, rather than the linguistic content of “rules” or judicial or legislative pronouncements, determine law’s content. MIT’s corollary is that legal interpretation consists in the inquiry into what is morally required as a consequence of the lawmaking actions. This paper challenges MIT by critiquing its attendant view of the nature of legal interpretation and argument. Points including the following: (1) it is (...) not practicable to predicate law’s content on the ability of legal officials to resolve moral controversies; (2) it would be impermissibly uncharitable to claim that participants in the legal system commit widespread error in failing to regard moral argument as the focus of legal interpretation; (3) whereas the legal official may initially respond to a conflict at the intuitive moral level, she must resolve the controversy at the deliberative, critical level, at which moral and legal thinking diverge; (4) because no two cases are precisely alike, and owing to the open texture of natural language, reference to extra-jurisdictional “persuasive” and “secondary” authority permeates legal argument, yet, nearly by definition, such linguistic sources cannot have engendered significant moral impacts in the home jurisdiction; and (5) one way or another, we ultimately arrive at linguistic contents. The paper concludes by accepting, as undeniable, that legal institutional actions have moral impacts, and generate moral obligations. Officials are obligated to adhere to certain constraints in their treatment of one another, cases, litigants and citizens. Less explored, however, have been the ways in which legal pronouncements likely morally impact the community, beyond the issue of a duty to obey the law. (shrink)

We argue that common knowledge, of the kind used in reasoning in law and computing is best analyzed using a dialogue model of argumentation (Walton & Krabbe 1995). In this model, implicit premises resting on common knowledge are analyzed as endoxa or widely accepted opinions and generalizations (Tardini 2005). We argue that, in this sense, common knowledge is not really knowledge of the kind represent by belief and/or knowledge of the epistemic kind studied in current epistemology. This paper takes a (...) different approach, defining it in relation to a common commitment store of two participants in a rule-governed dialogue in which two parties engage in rational argumentation (Jackson & Jacobs 1980; van Eemeren & Grootendorst 2004). A theme of the paper is how arguments containing common knowledge premises can be studied with the help of argumentation schemes for arguments from generally accepted opinion and expert opinion. It is argued that common knowledge is a species of provi- sional acceptance of a premise that is not in dispute at a given point in a dia- logue, but may later be defeated as the discussion proceeds . (shrink)

This article is about relations of support and conflict within systems of fundamental legal rights—and the arguments for and against rights that those relations make possible. Justificatory linkage arguments defend controversial rights by claiming that they provide very useful support to the realisation of well-accepted rights. This article analyses such arguments in detail and discusses their structures, uses and pitfalls. It then shows that linkage arguments can be used not just to defend rights, but also (...) to attack them. When rights conflict—whether severely or weakly, logically or practically—negative linkage arguments attacking them can be based on the trouble they make for other rights. Many examples of conflicts of rights are provided. Negative linkage arguments provide reasons for rejecting, repealing or trimming the criticised right. Such arguments are already in regular use, but their c. (shrink)

This book shows how research in linguistic pragmatics, philosophy of language, and rhetoric can be connected through argumentation to analyze a recognizably common strategy used in political and everyday conversation, namely the distortion of another’s words in an argumentative exchange. Straw man argumentation refers to the modification of a position by misquoting, misreporting or wrenching the original speaker’s statements from their context in order to attack them more easily or more effectively. Through 63 examples taken from different contexts (including political (...) and forensic discourses and dialogs) and 20 legal cases, the book analyzes the explicit and implicit types of straw man, shows how to assess the correctness of a quote or a report, and illustrates the arguments that can be used for supporting an interpretation and defending against a distortion. The tools of argumentation theory, a discipline aimed at investigating the uses of arguments by combining insights from pragmatics, logic, and communication, are applied to provide an original account of interpretation and reporting, and to describe and illustrate tactics and procedures that can be used and implemented for practical purposes.. This book will appeal to scholars in the fields of political communication, communication in general, argumentation theory, rhetoric and pragmatics, as well as to people working in public speech, speech writing, and discourse analysis. (shrink)

Two chapters -- "Common Arguments about Abortion" and "Better (Philosophical) Arguments About Abortion" -- in one file, from the open access textbook "Introduction to Ethics: An Open Educational Resource" edited by Noah Levin. -/- Adults, children and babies are arguably wrong to kill, fundamentally, because we are conscious, aware and have feelings. Since early fetuses entirely lack these characteristics, we argue that they are not inherently wrong to kill and so most abortions are not morally wrong, since most (...) abortions are done early in pregnancy before consciousness and feeling develop in the fetus. Furthermore, since the right to life is not the right to someone else’s body, fetuses might not have the right to the pregnant woman’s body, and so she has the right to not allow the fetus use of her body; this further justifies abortion, at least, until technology allows for the removal of fetuses to other wombs. Since morally permissible actions should be legal, abortions should be legal. -/- In the course of arguing for these claims, we: -/- discuss how to best define abortion; dismiss many common “question-begging” arguments that merely assume their conclusion, instead of giving genuine reasons for them; refute some often-heard “everyday arguments” about abortion; explain why some influential philosophical arguments against abortion are unsuccessful; provide some positive arguments that at least early abortions are not wrong; briefly discuss the ethics and legality of later abortions, and more. -/- Little of this discussion should be taken as absolute “proof” of anything, as this is merely a reasoned introduction to the issues: much more needs to be discussed, always. (shrink)

As individuals we often face complex issues about which we must weigh evidence and come to conclusions. Corporations also have to make decisions on the basis of strong and compelling arguments. Legal practitioners, compelled by arguments for or against a proposition and underpinned by the weight of evidence, are often required to make judgments that affect the lives of others. Medical doctors face similar decisions. Governments make purchasing decisions—for example, for expensive military equipment—or decisions in the areas (...) of public or foreign policy. These issues involve many arguments on all sides of difficult debates. These issues involve understanding the arguments of others and being able to make objections and provide rebuttals to objections. Students in universities deal with arguments all the time. A major purpose of a university education—regardless of subject matter—is to teach students how to read, understand, and respond to complex arguments. The ability to do this makes for highly employable, adaptable, and reflectively critical individuals. We often call the skill of marshaling arguments and assessing them “critical thinking.” All universities claim to instill the skill of critical thinking in their graduates and routinely note this in their advertising and promotional documents. This short paper outlines one way this skill can be taught. (shrink)

When Hegel first addresses moral responsibility in the Philosophy of Right, he presupposes that agents are only responsible for what they intended to do, but appears to offer little, if any, justification for this assumption. In this essay, I claim that the first part of the Philosophy of Right, “Abstract Right”, contains an implicit argument that legal or external responsibility (blame for what we have done) is conceptually dependent on moral responsibility proper (blame for what we have intended). This (...) overlooked argument satisfies the first half of a thesis Hegel applies to action in the Encyclopaedia Logic, namely, that the outer must be inner, and thus provides a necessary complement for his more explicit treatment of the second half of that thesis, that the inner must be outer. The claim that agents are only responsible for what they intended to do might appear, at first, to risk conflating legal and moral responsibility and to lack the necessary means to deal with the phenomenon of moral luck, but I argue that if it is properly situated within the whole of Hegel's philosophy of action it can be saved from both of these consequences and so take its place as an essential component of Hegel's full theory of moral responsibility. (shrink)

In 1935, the Nazi government introduced what came to be known as the abrogation of the pro- hibition of analogy. This measure, a feature of the new penal law, required judges to stray from the letter of the written law and to consider instead whether an action was worthy of pun- ishment according to the ‘sound perception of the people’ and the ‘underlying principle’ of existing criminal statutes. In discussions of Nazi law, an almost unanimous conclusion is that a system (...) of criminal law ought not to contain legislation of this sort. This conclusion is often based on how the abro- gation relates to the normative claim that the law ought to be predictable. In particular, it has been argued that since the law ought to be predictable, and since this type of analogy legis- lation implied, caused or contributed to the diminution of the law’s predictability, this type of legislation ought to be prohibited. In this paper, we argue that this argument is not entirely correct. While we believe that the law ought to be predictable and that there is evidence for the claim that the Nazis’ intro- duction of analogical reasoning implied, caused, or contributed to a diminution of predictability, this fact is logically too weak to ground the conclusion that necessarily a penal system ought not to contain legislation of this kind. Despite the undeniable wickedness of the Nazi penal system, this type of analogical reasoning can be made consistent with the pre- dictability of the law. We argue that consistency of this sort depends on whether the use of analogy is supplemented by certain contextual background conditions. The occurrence of these conditions blocks an inference from the fact that the law ought to be predictable to the conclusion that a penal system ought not to allow for this type of analogical reasoning. (shrink)

We define a formal semantics of conditionals based on _normatively ideal worlds_. Such worlds are described informally by Armgardt (Gabbay D, Magnani L, Park W, Pietarinen A-V (eds) Natural arguments: a tribute to john woods, College Publications, London, pp 699–708, 2018) to address well-known problems of the counterfactual approach to causation. Drawing on Armgardt’s proposal, we use iterated conditionals in order to analyse causal relations in scenarios of multi-agent interaction. This results in a refined counterfactual approach to causal responsibility (...) in legal contexts, which solves overdetermination problems in an intuitively accessible manner. (shrink)

Medical assistance in dying, which includes voluntary euthanasia and assisted suicide, is legally permissible in a number of jurisdictions, including the Netherlands, Belgium, Switzerland and Canada. Although medical assistance in dying is most commonly provided for suffering associated with terminal somatic illness, some jurisdictions have also offered it for severe and irremediable psychiatric illness. Meanwhile, recent work in the philosophy of psychiatry has led to a renewed understanding of psychiatric illness that emphasises the role of the relation between the person (...) and the external environment in the constitution of mental disorder. In this paper, I argue that this externalist approach to mental disorder highlights an ethical challenge to the practice of medical assistance in dying for psychiatric illness. At the level of the clinical assessment, externalism draws attention to potential social and environmental interventions that might have otherwise been overlooked by the standard approach to mental disorder, which may confound the judgement that there is no further reasonable alternative that could alleviate the person’s suffering. At the level of the wider society, externalism underscores how social prejudices and structural barriers that contribute to psychiatric illness constrain the affordances available to people and result in them seeking medical assistance in dying when they otherwise might not have had under better social conditions. (shrink)

This paper challenges the Critical Legal Studies (CLS) claims of legal indeterminacy. It shall use a legal formalist logic and language as its main assertion, further maintaining that the CLS claims is only grounded in ambiguity and confusion. CLS is a legal theory that challenges and overturns accepted norms and standards in legal theory and practice. They maintained that law in the historical and contemporary society has an alleged impartiality, and it is used as a (...) tool of privilege and power – law is politics. Consequently, CLS maintained that these results to indeterminacy of law. Legal indeterminacy can be summed up as contrary to the common understanding that legal materials, statutes and case law, do not really answer legal disputes. Legal principles and doctrines, as CLS scholars claim, are said to be indeterminate, for it is riddle with gaps, conflicts, and anomalies that are widely present even in simple cases. Legal indeterminacy also rises because of the underlying political power – law is politics – that implicates law as merely a tool for oppression. This thesis shows that CLS assertions with legal indeterminacy is only grounded on ambiguity. On one hand, using the main concept of legal formalist logic and language grounded with sub-arguments: inherent generality of legal language, reasoned elaboration, and neutral principles, it refutes the CLS claims of legal indeterminacy. On the other, the paper maintains that their main reason of legal indeterminacy, ‘law is politics’, is merely a statement of fact that currently happens in society is sentimental and weak through counterexamples. (shrink)

What are laws, and do they necessarily have any basis in morality? The present work argues that laws are governmental assurances of protections of rights and that concepts of law and legal obligation must therefore be understood in moral terms. There are, of course, many immoral laws. But once certain basic truths are taken into account – in particular, that moral principles have a “dimension of weight”, to use an expression of Ronald Dworkin’s, and also that principled relations are (...) not always expressed by perfect statistical concomitances – the existence of iniquitous laws poses no significant threat to a moralistic analysis of law. Special attention is paid to the debate between Ronald Dworkin and H.L.A. Hart. Dworkin’s over-all position is argued to be correct, but issue is taken with his argument for that position. Hart’s analysis is found to be vitiated by an impoverished conception of morality and also of the nature of government. Our analysis of law enables us to answer three questions that, at this juncture of history, are of special importance: Are there international laws? If not, could such laws exist? And if they could exist, would their existence necessarily be desirable? The answers to these questions are, respectively: “no”, “yes”, and “no.” Our analysis of law enables us to hold onto the presumption that so-called legal interpretation is a principled endeavor, and that some legal interpretations are truer to existing laws than others. At the same time, it accommodates the obvious fact that the sense in which a physicist interprets meter-readings, or in which a physician interprets a patient’s symptoms, is different from the sense in which judges interpret the law. So our analysis of law enables us to avoid the extreme views that have thus far dominated debates concerning the nature of legal interpretation. On the one hand, it becomes possible to avoid the cynical view (held by the so-called “legal realists”) that legal interpretation is mere legislation and that no legal interpretation is more correct than any other. On the other hand, it becomes possible to avoid Blackstone’s view (rightly descried by Austin as a “childish fiction”) that judges merely discover, and do not create, the law. (shrink)

This paper offers a critical examination of two recent American Supreme Court verdicts, Masterpiece Cake Shop v Colorado Civil Rights Commission and Trump v Hawaii. In Masterpiece the Court ruled against the state of Colorado on grounds that religious bias on the part of state officials undermines government’s authority to enforce a policy that might otherwise be constitutional. In Trump the Court ruled in favor of an executive order severely restricting immigration from seven countries, five of which are Muslim majority. (...) Both verdicts raise important issues concerning fairness and religious freedom. After examining some of the central legal issues in these verdicts I offer a critical assessment of the legal arguments, focusing on how political value judgments played a crucial role in determining the legal outcomes. (shrink)

Presumption is a complex concept in law, affecting the dialogue setting. However, it is not clear how presumptions work in everyday argumentation, in which the concept of “plausible argumentation” seems to encompass all kinds of inferences. By analyzing the legal notion of presumption, it appears that this type of reasoning combines argument schemes with reasoning from ignorance. Presumptive reasoning can be considered a particular form of reasoning, which needs positive or negative evidence to carry a probative weight on the (...) conclusion. For this reason, presumptions shift the burden of providing evidence or explanations onto the interlocutor. The latter can provide new information or fail to do so: whereas in the first case the new information rebuts the presumption, in the second case, the absence of information that the interlocutor could reasonably provide strengthen the conclusion of the presumptive reasoning. In both cases the result of the presumption is to strengthen the conclusion of the reasoning from lack of evidence. As shown in the legal cases, the effect of presumption is to shift the burden of proof to the interlocutor; however, the shift a presumption effects is only the shift of the evidential burden, or the burden of completing the incomplete knowledge from which the conclusion was drawn. The burden of persuasion remains on the proponent of the presumption. On the contrary, reasoning from definition in law is a conclusive proof, and shifts to the other party the burden to prove the contrary. This crucial difference can be applied to everyday argumentation: natural arguments can be divided into dialectical and presumptive arguments, leading to conclusions materially different in strength. -/- . (shrink)

This chapter proposes a dialectical approach to legal interpretation, consisting of three dimensions: a formalization of the canons of interpretation in terms of argumentation schemes; a dialectical classification of interpretive schemes; and a logical and computational model for comparing the arguments pro and contra an interpretation. The traditional interpretive maxims or canons used in both common and civil law are translated into defeasible patterns of arguments, which can be evaluated through sets of corresponding critical questions. These interpretive (...) argumentation schemes are classified in general categories and a distinction is drawn between schemes supporting and rebutting an interpretation. This framework allows conceiving statutory interpretation as a dialectical procedure consisting in weighing arguments pro and contra an interpretation. This procedure is formalized and represented computationally through tools from formal argumentation systems. (shrink)

This paper compares current ways of modeling the inferential structure of practical reasoning arguments, and proposes a new approach in which it is regarded in a modular way. Practical reasoning is not simply seen as reasoning from a goal and a means to an action using the basic argumentation scheme. Instead, it is conceived as a complex structure of classificatory, evaluative, and practical inferences, which is formalized as a cluster of three types of distinct and interlocked argumentation schemes. Using (...) two real examples, we show how applying the three types of schemes to a cluster of practical argumentation allows an argument analyst to reconstruct the tacit premises presupposed and evaluate the argumentative reasoning steps involved. This approach will be shown to overcome the limitations of the existing models of practical reasoning arguments within the BDI and commitment theoretical frameworks, providing a useful tool for discourse analysis and other disciplines. In particular, applying this method brings to light the crucial role of classification in practical argumentation, showing how the ordering of values and preferences is only one of the possible areas of deep disagreement. (shrink)

Aristotle divided arguments that persuade into the rhetorical (which happen to persuade), the dialectical (which are strong so ought to persuade to some degree) and the demonstrative (which must persuade if rightly understood). Dialectical arguments were long neglected, partly because Aristotle did not write a book about them. But in the sixteenth and seventeenth century late scholastic authors such as Medina, Cano and Soto developed a sound theory of probable arguments, those that have logical and not merely (...) psychological force but fall short of demonstration. Informed by late medieval treatments of the law of evidence and problems in moral theology and aleatory contracts, they considered the reasons that could render legal, moral, theological, commercial and historical arguments strong though not demonstrative. At the same time, demonstrative arguments became better understood as Galileo and other figures of the Scientific Revolution used mathematical proof in arguments in physics. Galileo moved both dialectical and demonstrative arguments into mathematical territory. (shrink)

Statutory interpretation involves the reconstruction of the meaning of a legal statement when it cannot be considered as accepted or granted. This phenomenon needs to be considered not only from the legal and linguistic perspective, but also from the argumentative one - which focuses on the strategies for defending a controversial or doubtful viewpoint. This book draws upon linguistics, legal theory, computing, and dialectics to present an argumentation-based approach to statutory interpretation. By translating and summarizing the existing (...) legal interpretative canons into eleven patterns of natural arguments - called argumentation schemes - the authors offer a system of argumentation strategies for developing, defending, assessing, and attacking an interpretation. Illustrated through major cases from both common and civil law, this methodology is summarized in diagrams and maps for application to computer sciences. These visuals help make the structures, strategies, and vulnerabilities of legal reasoning accessible to both legal professionals and laypeople. (shrink)

This paper explores the possibility of a standard legal language (e.g. English) for a principled evolution of law in line with technological development. In doing so, reference is made to blockchain networks and smart contracts to emphasise the discontinuity with the liberal legal tradition when it comes to decentralisation and binary code language. Methodologically, the argument is built on the underlying relation between law, semiotics and new forms of media adding to natural language; namely: code and symbols. In (...) what follows, I will concentrate on the study of factors that explain why such approach can be fruitful for the future of law and innovation. I have three reasons for selecting this topic. The first is a more pragmatic reason, based on my current research of law as a linguistic phenomenon. Secondly, the topic does also touch the matter on binary code language, rivalrous to legal alphabetic language. Lastly, the study aims at emphasizing the pivotal role of the jurist as an interpreter in a changing society accommodating diverging realms of reality. The study is structured as follows. Firstly, a quick exam of the traits of blockchain networks would provide the contextual link to establish the arguments in support of the need of a standard legal language. Secondly, a comparison between liberal legal institutions and theory of semiotics is set to perceive their functioning and ascertain their limits in the light of todays unprecedented changes. Thirdly, a summary on blockchain networks’ legal features would constitute the thrust behind the idea of a uniform legal language. Methodologically, the argument does also establish some relations with classical laws of physics and philosophy of media. Its aim is to demonstrate how the suggested legal interpretation and semiotic-based approach can contribute to overcome existing stumbling blocks including, but not limited to, the lack of cooperation at the international level as well as the gap in State norms when it comes to innovation. In this sense, the proposed strategies do not intend to replace current advances in the legal thought. In contrast, it seeks to harmonise their results providing a methodical approach that can concur to inform a new technique to address new controversial issues. In practice, the proposed method regarding the adoption of a uniform legal language would lower transactive costs in terms of normative coordination in the matter of international cooperation and in the definition of applicable law among different legal systems. Alternatively, it might contribute to the convergence of legal systems and/or their underlying concepts. Differently put, article’s contribution can be envisaged in fostering juridical consistency with regards to different forms of languages’ coexistence. (shrink)

The problem of establishing the best interpretation of a speech act is of fundamental importance in argumentation and communication in general. A party in a dialogue can interpret another’s or his own speech acts in the most convenient ways to achieve his dialogical goals. In defamation law this phenomenon becomes particularly important, as the dialogical effects of a communicative move may result in legal consequences. The purpose of this paper is to combine the instruments provided by argumentation theory with (...) the advances in pragmatics in order to propose an argumentative approach to meaning reconstruction. This theoretical proposal will be applied to and tested against defamation cases at common law. Interpretation is represented as based on a hierarchy of interpretative presumptions. On this view, the development of the logical form of an utterance is regarded as the result of an abductive pattern of reasoning in which various types of presumptions are confronted and the weakest ones are excluded. Conflicts of interpretations and equivocation become essentially interwoven with the dialectical problem of fulfilling the burden of defeating a presumption. The interpreter has a burden of explaining why a given presumption is subject to default, assuming that the speaker is reasonable and acting based on a set of shared expectations. (shrink)

This paper addresses the issue of the legal status of non-human animals and the possibility of changing it from the status of things or property to the status of non-things, or better, sentient beings. Key arguments for the change of their status are discussed, including the argument from marginal cases, as well as scientific evidence indicating that many animals are sentient beings. Two ways of initiating such changes seem most promising: legislation, i.e. modification of the civil codes, and (...) litigation, i.e. filing lawsuits on behalf of individual animals. It is argued that legislative changes are necessary for moving animals out of the legal category of things and into the category of sentient beings that can bear rights. On the other hand, litigation could bring about more radical change of the legal status of some animals. (shrink)

The fields of linguistic pragmatics and legal interpretation are deeply interrelated. The purpose of this paper is to show how pragmatics and the developments in argumentation theory can contribute to the debate on legal interpretation. The relation between the pragmatic maxims and the presumptions underlying the legal canons are brought to light, unveiling the principles that underlie the types of argument usually used to justify a construction. The Gricean maxims and the arguments of legal interpretation (...) are regarded as presumptions subject to default used to justify an interpretation. This approach can allow one to trace the different legal interpretive arguments back to their basic underlying presumptions, so that they can be compared, ordered, and assessed according to their defeasibility conditions. This approach allows one to understand the difference between various types of interpretive canons, and their strength in justifying an interpretation. (shrink)

It seems certain that one day we will allow the genetic technology which will enhance our offspring. A highly effective new tool, called CRISPR, which allows for carving out genes, is already being used to edit the genomes of animals. In July 2017, the FDA legalized that germline drugs for therapeutic purposes could be sold in the market. It is a high time, now, that we need engage in discussions about the ethics of germline intervention. To contribute to the discussion (...) by showing our thought and to educate the public, we write this paper. (shrink)

The paper argues that same-sex marriage ought to be legalized. The argument is ecumenical and appeals only to basic principles of liberal government. Specifically, the paper argues that if the government is offering an opportunity to one group, then it may not withhold the opportunity from another on the ground that the people receiving it are immoral or that their receipt of the opportunity would spread immoral messages. The only acceptable ground is that the group’s receipt would cause wrongful harm (...) to third-parties that would outweigh the benefits. Same-sex marriage would not do so, and thus it must to be allowed. As part of this argument, the paper addresses the popular stamp-of-approval and defense-of-marriage arguments against same-sex marriage. (shrink)

The United Nations Convention on the Rights of Persons with Disabilities (CRPD) is being used to argue for wider recognition of the legal capacity of people with mental disabilities. This raises a question about the implications of the Convention for attributions of criminal responsibility. The present paper works towards an answer by analysing the relationship between legal capacity in relation to personal decisions and criminal acts. Its central argument is that because moral and political considerations play an essential (...) role in setting the relevant standards, legal capacity in the context of personal decisions and criminal acts should not be thought of as two sides of the same coin. The implications of particular moral or political norms are likely to be different in these two legal contexts, and this may justify asymmetries in the relevant standards for legal capacity. However, the analysis highlights a fundamental question about how much weight moral or political considerations should be given in setting these standards, and this is used to frame a challenge to those calling for significantly wider recognition of the legal capacity of people with mental disabilities on the basis of the Convention. (shrink)

One of the most detailed early modern discussions of the morality of esteem can be found in the work of the reformed jurist and historian Marquard Freher (1565–1614). Since the question of how much esteem others deserve is fraught with a high degree of uncertainty, Freher relied on the work of other legal humanists, who discussed questions of esteem from the perspective of arguments from the presumption of goodness. The humanist approach to the presumption of goodness integrated considerations (...) about presumed non-delinquency with considerations concerning natural needs, natural rights and natural duties grounded in natural rational capacities common to all (grown-up, healthy) human beings. It advised us to fulfill natural duties that derive from the natural need of being held in good esteem by others, and to develop socially valuable attitudes such as trust and positive emotions toward others. At the same time, this approach was responsive to considerations of prudence, both in grounding the presumption of goodness in considerations concerning causal powers and in balancing the presumption of goodness against a variety of presumptions of badness. Freher applied this understanding of the presumption of goodness to political practice in his role as an advisor to the Palatinate. (shrink)

Motivated by recent political trends surrounding the legality of abortion, and noting the apparent difficulty with which partisan agreement can be found when engaging with arguments from foetal personhood, this paper revisits a classic axiological argument for the legalisation of abortion which relies on a commitment to the moral relevancy of consequences and the empirically sound nature of said consequences. Academically known as the Argument from Back-Street Abortion, agreement with the argument's premises entails the legalisation of abortion is morally (...) obligatory, and agreement to said argument's premises are possible regardless of one's position regarding a foetus' right-to-life. As such, this oft-overlooked argument deserves revisiting due to its potential for bipartisan reconciliation in service of the establishment of ethical abortion policy. (shrink)

This book introduces readers to the many arguments and controversies concerning abortion. While it argues for ethical and legal positions on the issues, it focuses on how to think about the issues, not just what to think about them. It is an ideal resource to improve your understanding of what people think, why they think that and whether their (and your) arguments are good or bad, and why. It's ideal for classroom use, discussion groups, organizational learning, and (...) personal reading. -/- From the Preface -/- To many people, abortion is an issue for which discussions and debates are frustrating and fruitless: it seems like no progress will ever be made towards any understanding, much less resolution or even compromise. -/- Judgments like these, however, are premature because some basic techniques from critical thinking, such as carefully defining words and testing definitions, stating the full structure of arguments so each step of the reasoning can be examined, and comparing the strengths and weaknesses of different explanations can help us make progress towards these goals. -/- When emotions run high, we sometimes need to step back and use a passion for calm, cool, critical thinking. This helps us better understand the positions and arguments of people who see things differently from us, as well as our own positions and arguments. And we can use critical thinking skills help to try to figure out which positions are best, in terms of being supported by good arguments: after all, we might have much to learn from other people, sometimes that our own views should change, for the better. -/- Here we use basic critical thinking skills to argue that abortion is typically not morally wrong. We begin with less morally-controversial claims: adults, children and babies are wrong to kill and wrong to kill, fundamentally, because they, we, are conscious, aware and have feelings. We argue that since early fetuses entirely lack these characteristics, they are not inherently wrong to kill and so most abortions are not morally wrong, since most abortions are done early in pregnancy, before consciousness and feeling develop in the fetus. -/- Furthermore, since the right to life is not the right to someone else’s body, fetuses might not have the right to the pregnant woman’s body—which she has the right to—and so she has the right to not allow the fetus use of her body. This further justifies abortion, at least, until technology allows for the removal of fetuses to other wombs. Since morally permissible actions should be legal, abortions should be legal: it is an injustice to criminalizing actions that are not wrong. -/- In the course of arguing for these claims, we: 1. discuss how to best define abortion; 2. dismiss many common “question-begging” arguments that merely assume their conclusions, instead of giving genuine reasons for them; 3. refute some often-heard “everyday arguments” about abortion, on all sides; explain why the most influential philosophical arguments against abortion are unsuccessful; 4. provide some positive arguments that at least early abortions are not wrong; 5. briefly discuss the ethics and legality of later abortions, and more. -/- This essay is not a “how to win an argument” piece or a tract or any kind of apologetics. It is not designed to help anyone “win” debates: everybody “wins” on this issue when we calmly and respectfully engage arguments with care, charity, honesty and humility. This book is merely a reasoned, systematic introduction to the issues that we hope models these skills and virtues. Its discussion should not be taken as absolute “proof” of anything: much more needs to be understood and carefully discussed—always. (shrink)

In contemporary positive law there are legal institutions, such as conscientious objection in the context of military service or “conscience clauses” in medical law, which for the sake of respect for judgments of conscience aim at restricting legal obligations. Such restrictions are postulated to protect human freedom in general. On the basis of Thomas Aquinas’ philosophy, it shall be argued that human dignity, understood as the existential perfection of a human being based on special unity, provides a foundation (...) for imposing limitations on the scope of legal obligations in general. Human freedom plays a crucial role in understanding dignity as perfection based on the special individuality of a personal being, which in turn is based on the free choice to pursue a unique way of life. Therefore, Aquinas’ argumentation is, at its core, liberal – the perfection rather than the imperfection of a human being underlies the requirement to limit legal obligations. Dignity understood as the special unity of a person also provides the basis for limiting obligations in the case of conscientious objection; however, in that case, such limitations aim at safeguarding internal integrity rather than the individualisation of a given way of life. _This project was financed with funds from the National Science Centre allocated on the basis of the decision number DEC-2013/09/B/HS5/04232._. (shrink)