Autonomous Agents addresses the related topics of self-control and individual autonomy. "Self-control" is defined as the opposite of akrasia-weakness of will. The study of self-control seeks to understand the concept of its own terms, followed by an examination of its bearing on one's actions, beliefs, emotions, and personal values. It goes on to consider how a proper understanding of self-control and its manifestations can shed light on personal autonomy and autonomous behaviour. Perspicuous, objective, and incisive throughout, Alfred Mele makes a (...) convincing case for the value of individual autonomy. (shrink)

My question here is whether there are intentional mental actions that generate special, significant threats to causalism (i.e., threats of a kind not generated by intentional overt actions), or that generate, more poignantly, problems for causalism that some intentional overt actions allegedly generate, as well.

Mele's ultimate purpose in this book is to help readers think more clearly about free will. He identifies and makes vivid the most important conceptual obstacles to justified belief in the existence of free will and meets them head on. Mele clarifies the central issues in the philosophical debate about free will and moral responsibility, criticizes various influential contemporary theories about free will, and develops two overlapping conceptions of free will--one for readers who are convinced that free will is incompatible (...) with determinism (incompatibilists), and the other for readers who are convinced of the opposite (compatibilists). Luck poses problems for all believers in free will, and Mele offers novel solutions to those problems--one for incompatibilist believers in free will and the other for compatibilists. An early chapter of this empirically well-informed book clearly explains influential neuroscientific studies of free will and debunks some extravagant interpretations of the data. Other featured topics include abilities and alternative possibilities, control and decision-making, the bearing of manipulation on free will, and the development of human infants into free agents. Mele's theory offers an original perspective on an important problem and will garner the attention of anyone interested in the debate on free will. (shrink)

This paper is a critique of the current version of Derk Pereboom’s “disappearing agent argument” against event-causal libertarianism. Special attention is paid to a notion that does a lot of work in his argument—that of settling which decision occurs (of the various decisions it is open to the agent to make at the time). It is argued that Pereboom’s disappearing agent argument fails to show that event-causal libertarians lack the resources to accommodate agents’ having freedom-level control over what they decide. (...) The connection between the disappearing agent argument and the problem of present luck is explored, as is the connection between settling which decision one makes and luck. Pereboom’s disappearing agent argument also is distinguished from another argument with the same name that targets intentional action itself. (shrink)

Mele's ultimate purpose in this book is to help readers think more clearly about free will. He identifies and makes vivid the most important conceptual obstacles to justified belief in the existence of free will and meets them head on. Mele clarifies the central issues in the philosophical debate about free will and moral responsibility, criticizes various influential contemporary theories about free will, and develops two overlapping conceptions of free will--one for readers who are convinced that free will is incompatible (...) with determinism (incompatibilists), and the other for readers who are convinced of the opposite (compatibilists). Luck poses problems for all believers in free will, and Mele offers novel solutions to those problems--one for incompatibilist believers in free will and the other for compatibilists. An early chapter of this empirically well-informed book clearly explains influential neuroscientific studies of free will and debunks some extravagant interpretations of the data. Other featured topics include abilities and alternative possibilities, control and decision-making, the bearing of manipulation on free will, and the development of human infants into free agents. Mele's theory offers an original perspective on an important problem and will garner the attention of anyone interested in the debate on free will. (shrink)

The standard view in social science and philosophy is that lying does not require the liar’s assertion to be false, only that the liar believes it to be false. We conducted three experiments to test whether lying requires falsity. Overall, the results suggest that it does. We discuss some implications for social scientists working on social judgments, research on lie detection, and public moral discourse.

This chapter defends a history-sensitive compatibilist view of free action and moral responsibility against various criticisms by compatibilists. It constructs a new argument for incompatibilism that makes vivid a problem that luck poses for compatibilism: the zygote argument. It is argued that the zygote argument is much more powerful than more familiar arguments for incompatibilism, and that, even so, compatibilism may survive the attack.

Mele's ultimate purpose in this book is to help readers think more clearly about free will. He identifies and makes vivid the most important conceptual obstacles to justified belief in the existence of free will and meets them head on. Mele clarifies the central issue in the philosophical debate about free will and moral responsibility, criticizes various influential contemporary theories about free will, and develops two overlapping conceptions of free will - one for readers who are convinced that free will (...) is incompatible with determinism, and the other for readers who are convinced of the opposite. Mele's theory offers an original perspective on an important problem and will garner the attention of anyone interested in the debate on free will. (shrink)

Although much human action serves as proof that irrational behavior is remarkably common, certain forms of irrationality--most notably, incontinent action and self-deception--pose such difficult theoretical problems that philosophers have rejected them as logically or psychologically impossible. Here, Mele shows that, and how, incontinent action and self-deception are indeed possible. Drawing upon recent experimental work in the psychology of action and inference, he advances naturalized explanations of akratic action and self-deception while resolving the paradoxes around which the philosophical literature revolves. In (...) addition, he defends an account of self-control, argues that "strict" akratic action is an insurmountable obstacle for traditional belief-desire models of action-explanation, and explains how a considerably modified model accommodates action of this sort. (shrink)

Researchers have debated whether there is a relationship between a statement’s truth-value and whether it counts as a lie. One view is that a statement being objectively false is essential to whether it counts as a lie; the opposing view is that a statement’s objective truth-value is inessential to whether it counts as a lie. We report five behavioral experiments that use a novel range of behavioral measures to address this issue. In each case, we found evidence of a relationship. (...) A statement’s truth-value affects how quickly people judge whether it is a lie. When people consider the matter carefully and are told that they might need to justify their answer, they are more likely to categorize a statement as a lie when it is false than when it is true. When given options that inhibit perspective-taking, people tend to not categorize deceptively motivated statements as lies when they are true, even though they still categorize them as lies when they are false. Categorizing a speaker as “lying” leads people to strongly infer that the speaker’s statement is false. People are more likely to spontaneously categorize a statement as a lie when it is false than when it is true. We discuss four different interpretations of relevant findings to date. At present, the best supported interpretation might be that the ordinary lying concept is a prototype concept, with falsity being a centrally important element of the prototypical lie. (shrink)

In this paper we consider conditional random quantities (c.r.q.’s) in the setting of coherence. Based on betting scheme, a c.r.q. X|H is not looked at as a restriction but, in a more extended way, as \({XH + \mathbb{P}(X|H)H^c}\) ; in particular (the indicator of) a conditional event E|H is looked at as EH + P(E|H)H c . This extended notion of c.r.q. allows algebraic developments among c.r.q.’s even if the conditioning events are different; then, for instance, we can give a (...) meaning to the sum X|H + Y|K and we can define the iterated c.r.q. (X|H)|K. We analyze the conjunction of two conditional events, introduced by the authors in a recent work, in the setting of coherence. We show that the conjoined conditional is a conditional random quantity, which may be a conditional event when there are logical dependencies. Moreover, we introduce the negation of the conjunction and by applying De Morgan’s Law we obtain the disjoined conditional. Finally, we give the lower and upper bounds for the conjunction and disjunction of two conditional events, by showing that the usual probabilistic properties continue to hold. (shrink)

Teleological explanations of human actions are explanations in terms of aims, goals, or purposes of human agents. According to a familiar causal approach to analyzing and explaining human action, our actions are, essentially, events (and sometimes states, perhaps) that are suitably caused by appropriate mental items, or neural realizations of those items. Causalists traditionally appeal, in part, to such goal-representing states as desires and intentions (or their neural realizers) in their explanations of human actions, and they take accept-able teleological explanations (...) of our actions to be causal explanations. Some proponents of the view that human actions are explained teleologically resist this. They regard the causal approach as a rival. I dub this position “anticausalist teleologism,” or AT, for short. I favor the causal approach, but I will not directly argue for it here. My aim is more modest. I will develop a serious problem for AT that strongly suggests that teleologists need causalism; and I will rebut a style of objection to the project of providing a causal analysis of acting in pursuit of a goal that recently resurfaced in the literature on teleological explanations of action, a style of objection featuring a certain kind of causal deviance. (shrink)

We study probabilistically informative (weak) versions of transitivity by using suitable definitions of defaults and negated defaults in the setting of coherence and imprecise probabilities. We represent p-consistent sequences of defaults and/or negated defaults by g-coherent imprecise probability assessments on the respective sequences of conditional events. Moreover, we prove the coherent probability propagation rules for Weak Transitivity and the validity of selected inference patterns by proving p-entailment of the associated knowledge bases. Finally, we apply our results to study selected probabilistic (...) versions of classical categorical syllogisms and construct a new version of the square of opposition in terms of defaults and negated defaults. (shrink)

We generalize, by a progressive procedure, the notions of conjunction and disjunction of two conditional events to the case of n conditional events. In our coherence-based approach, conjunctions and disjunctions are suitable conditional random quantities. We define the notion of negation, by verifying De Morgan’s Laws. We also show that conjunction and disjunction satisfy the associative and commutative properties, and a monotonicity property. Then, we give some results on coherence of prevision assessments for some families of compounded conditionals; in particular (...) we examine the Fréchet-Hoeffding bounds. Moreover, we study the reverse probabilistic inference from the conjunction Cn+1 of n + 1 conditional events to the family {Cn,En+1|Hn+1}. We consider the relation with the notion of quasi-conjunction and we examine in detail the coherence of the prevision assessments related with the conjunction of three conditional events. Based on conjunction, we also give a characterization of p-consistency and of p-entailment, with applications to several inference rules in probabilistic nonmonotonic reasoning. Finally, we examine some non p-valid inference rules; then, we illustrate by an example two methods which allow to suitably modify non p-valid inference rules in order to get inferences which are p-valid. (shrink)

A standard view in social science and philosophy is that a lie is a dishonest assertion: to lie is to assert something that you think is false in order to deceive your audience. We report four behavioral experiments designed to evaluate some aspects of this view. Participants read short scenarios and judged several features of interest, including whether an agent lied. We found evidence that ordinary lie attributions can be influenced by aspects of audience uptake, are based on judging that (...) the agent made an assertion (assertion attributions), and, at least in some contexts, are not based on attributions of deceptive intent. The finding on assertion attributions is predicted by the standard view, but the finding on intent attributions is not. These results help to further clarify the ordinary concept of lying and shed light on the psychological processes involved in ordinary lie attributions and related judgments. (shrink)

This paper develops a soft-libertarian response to Frankfurt-style cases and to the threat that such cases apparently pose to any brand of libertarianism.

This paper presents an introductory overview of the main issues that the digitalisation of industrial enterprises known as Industry 4.0 raises for social sciences. First, it will show that this technological transition—which, however, is unfinished and is seen to be in continuity with the so-called “third industrial revolution”—cannot be interpreted with reference to a deterministic approach. It can be analysed more usefully as a range of decisions affecting the industrial policies of national states, the conception and design of machines, their (...) adoption in production processes and finally their use by operators. Second, certain aspects of Industry 4.0 of special concern in terms of organisation of work processes will be analysed on various scales. Finally, we will explain various hypotheses that social and economic research is developing with regard to the new technologies’ controversial effects on employment. (shrink)

One popular style of argument for the thesis that determinism is incompatible with moral responsibility features manipulation. Its thrust is that regarding moral responsibility, there is no important difference between various cases of manipulation in which agents who A are not morally responsible for A-ing and ordinary cases of A-ing in deterministic worlds. There is a detailed argument of this kind in Derk Pereboom’s recent book (2001: 112–26). His strategy in what he calls his ‘four-case argument’ (117) is to describe (...) three cases of progressively weaker manipulation in which, he contends, the agent, Plum, is not morally responsible for killing his victim and to compare them to a related deterministic case that involves no manipulation. Pereboom argues that what blocks Plum’s moral responsibility for the killing in the first three cases is the fact that ‘his action results from a deterministic causal process that traces back to factors beyond his control’ and that, because this fact also obtains in the fourth case, Plum is not morally responsible for that killing either (116). My thesis is that Pereboom’s argument fails. (shrink)

Traditional libertarians about freedom of choice and action and about moral responsibility are hard-line incompatibilists. They claim that these freedoms (which they believe to be possessed by at least some human beings) are incompatible with determinism, and they take the same view of moral responsibility. I call them hard libertarians. A softer line is available to theorists who have libertarian sympathies. A theorist may leave it open that freedom of choice and action and moral responsibility are compatible with determinism but (...) may maintain that the falsity of determinism is required for more desirable species of these freedoms and for a more desirable brand of moral responsibility. This is a soft=-libertarian line. Soft libertarians would be disappointed to discover that determinism is true, but they would not conclude that no one has ever acted or chosen freely and that no one has ever been morally responsible for anything.1 In principle, a soft libertarian may or may not treat the desirability at issue in a way that relativizes it to individuals. The brand of soft libertarianism to be explored here is relativistic: it maintains that at least some human agents are possessed of kinds of freedom and moral responsibility that are incompatible with determinism and are reasonably preferred by at least some of these agents to any kind of freedom or moral responsibility that is consistent with the truth of determinism. (shrink)

To what extent should an analysis of an agent’s being morally responsible for an action that he performed—especially a compatibilist analysis of this—be sensitive to the agent’s history? In this article, I give the issue a clearer focus than it tends to have in the literature, I lay some groundwork for an attempt to answer the question, and I motivate a partial but detailed answer.

To what extent should an analysis of an agent’s being morally responsible for an action that he performed—especially a compatibilist analysis of this—be sensitive to the agent’s history? In this article, I give the issue a clearer focus than it tends to have in the literature, I lay some groundwork for an attempt to answer the question, and I motivate a partial but detailed answer.

In this study, we explore the relation between scientific literacy and unwarranted beliefs. The results show heterogeneous interactions between six constructs: conspiracy theories poorly interact with scientific literacy; there are major differences between attitudinal and practical dimensions of critical thinking; paranormal and pseudoscientific beliefs show similar associations ; and, only scientific knowledge interacts with other predictor of unwarranted beliefs, such as ontological confusions. These results reveal a limited impact: science educators must take into account the complex interactions between the dimensions (...) of scientific literacy and different types of unwarranted beliefs to improve pedagogical strategies. (shrink)

Whereas some philosophers view all reasons for action as psychological states of agents, others—objective favourers theorists—locate the overwhelming majority of reasons for action outside the agent, in items that objectively favour courses of action. (The latter may count such psychological states as a person's belief that demons dance in his kitchen as a reason for him to seek psychiatric help.) This article explores options that objective favourers theorists have regarding cases in which, owing significantly to a false belief, an agent (...) performs an action for which there is no objective favourer. Topics addressed include whether such theorists, including Jonathan Dancy himself, should accept Dancy's thesis that 'intentional, deliberate, purposeful action is always done for a reason' and whether there are two different concepts of reasons for action, one geared to action-evaluation and the other to action-explanation. (shrink)

Starting from a recent paper by S. Kaufmann, we introduce a notion of conjunction of two conditional events and then we analyze it in the setting of coherence. We give a representation of the conjoined conditional and we show that this new object is a conditional random quantity, whose set of possible values normally contains the probabilities assessed for the two conditional events. We examine some cases of logical dependencies, where the conjunction is a conditional event; moreover, we give the (...) lower and upper bounds on the conjunction. We also examine an apparent paradox concerning stochastic independence which can actually be explained in terms of uncorrelation. We briefly introduce the notions of disjunction and iterated conditioning and we show that the usual probabilistic properties still hold. (shrink)

In view of the arguments put forward by Clifton and Monton [this volume], we reconsider the alleged conflict of dynamical reduction models with the enumeration principle. We prove that our original analysis of such a problem is correct, that the GRW model does not meet any difficulty and that the reasoning of the above authors is inappropriate since it does not take into account the correct interpretation of the dynamical reduction theories.

Limited health literacy is a pervasive and independent risk factor for poor health outcomes. Despite decades of reports exhibiting that the healthcare system is overly complex, unneeded complexity remains commonplace and endangers the lives of patients, especially those with limited health literacy. In this article, we define health literacy and describe the empirical evidence associating health literacy and poor health outcomes. We recast the issue of poor health literacy from within the ethical perspective of the least well-off and argue that (...) poor health outcomes deriving from limited health literacy ought to be understood as a fundamental injustice of the healthcare system. We offer three proposals that attempt to rectify this injustice, including: universal precautions that presume limited health literacy for all healthcare users; expanded use of technology supported communication; and clinical incentives that account for limited health literacy. (shrink)

Common sense and philosophical tradition agree that mind makes a difference. What we do depends not only on how our bodies are put together, but also on what we think. Explaining how mind can make a difference has proved challenging, however. Some have urged that the project faces an insurmountable dilemma: either we concede that mentalistic explanations of behavior have only a pragmatic standing or we abandon our conception of the physical domain as causally autonomous. Although each option has its (...) advocates, most theorists have sought a middle way that accommodates both the common-sense view of mind and the metaphysical conviction about the physical world. This volume presents a collection of new, specially written essays by a diverse group of philosophers, each of whom is widely known for defending a particular conception of minds and their place in nature. Contributors include Robert Audi, Lynne Rudder Baker, Tyler Burge, Donald Davidson, Fred Dretske, Ted Honderich, Jennifer Hornsby, Frank Jackson, Jaegwon Kim, Brian P. McLaughlin, Ruth Garrett Millikan, H. W. Noonan, Philip Pettit, Ernest Sosa, and Robert Van Gulick. (shrink)

Les concepts de paradigme et de thématisation, par lesquels Jean Cavaillès décrit dans l’ouvrage posthume Sur la Logique et la théorie de la science la dynamique de l’activité mathématique, trouvent dans la théorie des catégories à la fois une illustration et une formalisation, et dans la dialectique hégélienne un précédent. Dans un premier temps, nous examinerons cette hypothèse, non sans définir le concept de thématisation et les quelques notions élémentaires de théorie des catégories qui nous serviront par la suite. Ensuite, (...) en supposant hégélienne la notion de « dialectique » employée par Cavaillès, nous vérifierons si le concept de « thématisation » peut prétendre décrire le processus dialectique de la logique hégélienne, interprétation dont nous trouverons l’esquisse chez William Lawvere. Enfin, nous mettrons à l’épreuve cette interprétation en analysant la dialectique hégélienne de l’être et du néant dans la Science de la logique et les Leçons sur l’histoire de la philosophie. Nous verrons ainsi comment la dialectique hégélienne peut tout à la fois décrire la pratique mathématique et s’y voir représenter. (shrink)

In `Underestimating Self-Control' (1997a), I argued that Jeanette Kennett and Michael Smith (1996) underestimate our capacity for synchronic self-control. They argued for a solution to a puzzle about such self-control that features non-actional exercises' of self-control. I argued in response that `a more robust, actional exercise of self-control is open to agents in scenarios of the sort in question' (1997a: 119). They disagree (Kennett and Smith 1997).In Mele 1997a, I resisted the temptation to criticize Kennett and Smith's attempted resolution, because (...) I thought it better to concentrate on sketching an alternative resolution. Here, I will argue that the resolution they offer is problematic and reply to their criticism (1997) of my suggested resolution. (shrink)

People intend to do things, try to do things, and do things. Do they also will to do things? More precisely, if people will to do things and their willing bears upon what they do, is willing, or volition, something distinct from intending and trying? This question is central to the intention/volition debate, a debate about the ingredients of the best theory of the nature and explanation of human action. A variety of competing conceptions of volition, intention, and trying have (...) been advanced in the literature; it would be impossible to examine each thoroughly in a single paper. We can show, however, that the major functional roles ascribed to volition are nicely filled by a triad composed of intention, trying, and information feedback. Sections I and II below develop an account of the connection between intention and trying. Section III examines leading arguments for the existence of volitions and decomposes volitions into members of the triad just identified. (shrink)

Interest in the demarcation problem is undergoing a boom after being shelved and even given up for dead. Nevertheless, despite current philosophical discussions, there are no substantial advances i...

Background: Patients prescribed with medication that treats mental health conditions benefit the most compared to those prescribed with other types of medication. However, they are also the most difficult to adhere. The development of mobile health (mHealth) applications (‘apps’) to help patients monitor their adherence is fast growing but with limited evidence on their efficacy. There is no evidence on the content of these apps for patients taking psychotropic medication. The aim of this study is to identify and evaluate the (...) aims and functioning of available apps that are aiming to help and educate patients to adhere to medication that treats mental health conditions. Method: Three platform descriptions (Apple, Google and Microsoft) were searched between October 2015 and February 2016. Included apps need to focus on adherence to medication that treats mental health conditions and use at least a reinforcement strategy. Descriptive information was extracted and apps evaluated on a number of assessment criteria using content analysis. Results: Sixteen apps were identified. All apps included self-monitoring properties like reminders and psycho-educational properties like mood logs. It was unclear how the latter were used or how adherence was measured. Major barriers to medication adherence like patients’ illness and medication beliefs and attitudes were not considered nor where information to patients about mediation side effects. Very few apps were tailored and none was developed based on established theories explaining the processes for successful medication adherence like cognitions and beliefs. Reported information on app development and validation was poor. Discussion: A variety of apps with different properties that tackle both intentional and unintentional non-adherence from a different perspective are identified. An evidence-based approach and co-creation with patients is needed. This will ensure that the apps increase the possibility to impact on non-adherence. Theories like social cognition models can be useful in ensuring that patients’ education, motivation, skills, beliefs and type of adherence are taken into consideration when developing the apps. Findings from this study can help clinicians and patients make informed choices and pursue policy-makers to integrate evidence when developing future apps. Quality-assurance tools are needed to ensure the apps are systematically evaluated. (shrink)

Il est parfois fécond, en philosophie des sciences, de chercher si les concepts techniques relèvent d’une nécessité de structure plutôt que des seuls hasards de l’invention. En essayant de fonder de la sorte les concepts fondamentaux des systèmes d’exploitation que sont les notions de processus et de fichier, on s’aperçoit qu’ils sont, depuis Unix, les pendants des notions ontologiques abstraites d’acte et d’objet, et qu’ils satisfont toutes les propriétés que la théorie des catégories peut en attendre. La programmation peut dès (...) lors être vue comme une thématisation, c’est-à-dire la transformation de l’acte qu’est le processus en l’objet qu’est le fichier ; mais on découvre également que l’exécution de programmes joue le rôle d’une « antithématisation », transformation d’objets en actes dont l’histoire récente des mathématiques fournit également des exemples. Par ses concepts comme par ses procédés, la pratique informatique est pour la philosophie un objet aussi pur que les mathématiques. (shrink)

Il est parfois fécond, en philosophie des sciences, de chercher si les concepts techniques relèvent d’une nécessité de structure plutôt que des seuls hasards de l’invention. En essayant de fonder de la sorte les concepts fondamentaux des systèmes d’exploitation que sont les notions de processus et de fichier, on s’aperçoit qu’ils sont, depuis Unix, les pendants des notions ontologiques abstraites d’acte et d’objet, et qu’ils satisfont toutes les propriétés que la théorie des catégories peut en attendre. La programmation peut dès (...) lors être vue comme une thématisation, c’est-à-dire la transformation de l’acte qu’est le processus en l’objet qu’est le fichier ; mais on découvre également que l’exécution de programmes joue le rôle d’une « antithématisation », transformation d’objets en actes dont l’histoire récente des mathématiques fournit également des exemples. Par ses concepts comme par ses procédés, la pratique informatique est pour la philosophie un objet aussi pur que les mathématiques. (shrink)

A great deal of attention has been paid in recent years to the function- al roles of intentions in intentional action. In this paper we sketch and defend a position on this issue while attacking a provocative alternative. Our position has its roots in a cybernetic theory of purposive behavior and is only part of the larger task of understanding all goal-directed behavior. Indeed, a unified model of goal-directed behavior, with appropriate modifications for different types of systems, is a long-range (...) ambition. (shrink)

This article defends a nonstandard position on free will that is based on three topics linked to contemporary debates about free will: autonomy, self-control, and weakness of will. It argues that autonomy, and hence also free will, requires more than self-control, including ideal self-control. It considers the additional conditions required, showing how contemporary discussions of autonomy are intertwined with debates about free will. These additional conditions for genuine autonomy do not require us to choose between compatibilist and incompatibilist accounts of (...) autonomy, because one can give a “robust, satisfiable” set of adequate conditions for both compatibilist autonomy and incompatibilist autonomy. One can thus remain agnostic on the Compatibility Question regarding autonomy and free will without giving up the belief that there are autonomous human beings. This view is called “agnostic autonomism”. (shrink)

Philosophe structural tout autant qu’historien structural de la philosophie, Jules Vuillemin fonde la classification des systèmes philosophiques sur une structure jumelle : la classification des formes de prédication. Essayant d’appliquer à l’œuvre de Vuillemin la méthode qu’il appliquait à ses objets d’étude, nous montrons que la structure de ces deux classifications peut être déduite de la combinaison de trois critères : le caractère intelligible ou sensible de l’objet, le caractère a priori ou a posteriori de la connaissance et le caractère (...) objectif ou subjectif de l’état de choses décrit. La classification peut ainsi être décrite comme un tableau cubique contenant cinq systèmes cohérents et trois systèmes contradictoires. (shrink)