In this essay, I argue that Robert Boyle does not hold that true religion requires us to believe doctrines that are in violation of the law of noncontradiction or that it yields logical contradictions. Rather, due to the epistemological limitations of human reason, we are sometimes called to believe doctrines or propositions that are at first blush contradictory but, upon further inspection, not definitively so. This holds for doctrines considered singly or together and is an important qualifier to the traditional (...) line of scholarship’s flat claim that Boyle’s limits of belief are logical contradictions. My conclusions here are at odds with Jan W. Wojcik’s claim, in her important, revisionist work on the famous natural philosopher, that he teaches that sometimes we are required to believe religious doctrines that violate the law of noncontradiction. (shrink)

Aristotle was the founder not only of logic but also of modal logic. In the Prior Analytics he developed a complex system of modal syllogistic which, while influential, has been disputed since antiquity--and is today widely regarded as incoherent. Combining analytic rigor with keen sensitivity to historical context, Marko Malink makes clear that the modal syllogistic forms a consistent, integrated system of logic, one that is closely related to other areas of Aristotle's philosophy. Aristotle's modal syllogistic differs significantly from (...) modern modal logic. Malink considers the key to understanding the Aristotelian version to be the notion of predication discussed in the Topics--specifically, its theory of predicables and the ten categories. The predicables introduce a distinction between essential and nonessential predication. In contrast, the categories distinguish between substantial and nonsubstantial predication. Malink builds on these insights in developing a semantics for Aristotle's modal propositions, one that verifies the ancient philosopher's claims of the validity and invalidity of modal inferences. While it acknowledges some limitations of this reconstruction, Aristotle's Modal Syllogistic brims with bold ideas, richly supported by close readings of the Greek texts. (shrink)

In this new book, Marko Zlomislić argues that Slavoj Žižek's work does not contain any sort of radical emancipatory project, especially as it passes through the ideology of communism and Lacanian psychoanalysis. The evidence for the failure of communism is vast and includes the more than six hundred mass graves recently located in Žižek's homeland of Slovenia. Zlomislić demonstrates that the way out of the capitalist dilemma is not a repetition of communism but a return to the late medieval (...) notion of haecceity or "individual thisness" that was rejected by modernity. Haecceity, or the indescribable and indefinite here and now of the person, shows that the late medieval Franciscans were already "postmodernists." It is no wonder that the totalitarianism of the modernist Hegel is embraced by thinkers such as Žižek, Badiou, Hardt, Negri, and Laclau and was already rejected by Leibnitz, Kierkegaard, Nietzsche, Levinas, Deleuze, and Derrida. This important book shows that Žižek's work must be rejected because it does not uphold the dignity, worth, and uniqueness of the person. (shrink)

The concept of the ‘infodemic’ has become a popular explanation for the rejection of anti-COVID-19 crisis governance measures. In this paper, we argue that infodemic is an inherent property of society under free institutions misused to pursue an epistemically vicious political epistemology. Furthermore, we provide an alternative account of political epistemology of COVID-19 governance and popular resistance to it. Namely, we argue that 1) pandemics represent a complex problem, and some level of resistance to governance which restricts liberties while informed (...) by ongoing scientific and political learning processes is inevitable, and 2) the resistance is exacerbated by the history of technocratization of governance and the exclusionary socio-economic inequalities which condition political and epistemic deficiencies easily exploitable by the political entrepreneurs of right-wing populism, particularly under the conditions of social media which gamifies public discourse. Thus, we argue, the correct response to the cultures of rejection of anti-COVID-19 measures is to change the underlying political and economic conditions and not to limit speech or restrict franchise as the infodemic diagnosis suggests. (shrink)

Śaiva Rites of Expiation: A First Edition and Translation of Trilocanaśiva’s Twelfth-Century Prāyaścittasamuccaya. Edited and translated by R. Sathyanarayanan, with an introduction by Dominic Goddall. Collection Indologie, vol. 127. Pondicherry: Institut Française de Pondichéry; École Française d’Extrême Orient, 2015. Pp. 651.

We examine topological pairs (\Delta, \Sigma) which have computable type: if X is a computable topological space and f:\Delta \rightarrow X a topological embedding such that f(\Delta) and f(\Sigma) are semicomputable sets in X, then f(\Delta) is a computable set in X. It it known that (D, W) has computable type, where D is the Warsaw disc and W is the Warsaw circle. In this paper we identify a class of topological pairs which are similar to (D, W) and have (...) computable type: we prove that (\Delta, \Sigma) has computable type if \Delta can somehow be approximated by a 2-cell whose boundary circle approximates \Sigma. Moreover, we examine higher-dimensional analogues of such pairs. (shrink)

Background and Aims: The COVID-19 pandemic has led to radical and unexpected changes in everyday life, and it is plausible that people’s psychophysical health has been affected. This study examined the relationship between COVID-19 related knowledge and mental health in a Croatian sample of participants.MethodsAn online survey was conducted from March 18 until March 23, 2020, and a total of 1244 participant responses were collected. Measures included eight questions regarding biological features of the virus, symptoms, and prevention, the Hospital Anxiety (...) and Depression Scale, and Optimism-Pessimism Scale. According to the answers given on the questions on COVID-19 related knowledge, participants were divided in two groups: informed and uninformed on each question. They were then compared in the expressed levels of anxiety, depression, pessimism, and optimism. Full vs. partial mediation models with optimism/pessimism as a mediator in the relationship between anxiety/depression and the accuracy of responses for questions about handwashing and ways of transmission were estimated.ResultsParticipants who responded correctly on the question about handwashing had higher levels of anxiety, depression, and pessimism than those participants whose answer was incorrect, while participants who answered correctly on the question about the percentage of patients who develop serious breathing problems had higher levels of depression than those who answered incorrectly. Lower levels of anxiety and pessimism were observed in the participants who answered correctly about ways of transmission. Higher levels of pessimism were found in participants who scored incorrectly on questions about the efficiency of antibiotics, most common symptoms, and the possibility of being infected by asymptomatic carriers. Higher levels of knowledge about handwashing were predicted by higher levels of anxiety and pessimism. Higher levels of knowledge about ways of transmission were predicted by lower levels of anxiety and lower levels of pessimism. The examined relationships between anxiety/depression and knowledge were mediated by pessimism.ConclusionThe findings of this study suggest that knowledge about COVID-19 may be useful to reduce anxiety and depression, but it must be directed to the promotion of health behaviors and to the recognition of fake news. (shrink)

Die Untersuchung gliedert sich in drei durch eine Einführung und eine Schlussbetrachtung eingerahmte Hauptkapitel. Im ersten Hauptkapitel geht es um Kants Raum- und Zeitkonzeption in seiner vorkritischen Phase unter Berücksichtigung seiner Reaktion auf die zeitgenössische Kritik an seiner Konzeption von 1770. Dabei wird Kants komplexer Denkweg hin zu seiner Wende zum Verständnis von Raum und Zeit als reinen Anschauungen thematisiert. Hieran schließt sich im zweiten Hauptkapitel die Behandlung der prominenteren, systematisch ausgereiften Raum- und Zeitkonzeption in der Kritik der reinen Vernunft (...) an, wobei zunächst die unterschiedlichen Argumente aus der transzendentalen Ästhetik sukzessive und unter Einschluss der Forschungsliteratur diskutiert werden und Raum und Zeit als formale Anschauungen in der transzendentalen Analytik sowie als Ideen der Vernunft in der transzendentalen Dialektik zur Sprache kommen. Ein dritter Hauptteil widmet sich Kants Verständnis von Raum und Zeit in der Kritik der Urteilskraft, wo Kants Lehre neue Impulse erfährt und im Kontext der philosophischen Ästhetik, der Kultur sowie des Erhabenen relevant wird. Abschließend wird auf Kants schwieriges Nachlasswerk hinsichtlich der Themen Raum und Zeit eingegangen, das auf die Werke Fichtes und Schellings vorausweist. (shrink)

In Prior Analytics 1.27–30, Aristotle develops a method for finding deductions. He claims that, given a complete collection of facts in a science, this method allows us to identify all demonstrations and indemonstrable principles in that science. This claim has been questioned by commentators. I argue that the claim is justified by the theory of natural predication presented in Posterior Analytics 1.19–22. According to this theory, natural predication is a non-extensional relation between universals that provides the metaphysical basis for demonstrative (...) science. (shrink)

The importance of Thomas Hobbes?s account of personation and representation can hardly be overstated. And his intellectual debt to one of his classical foes, Marcus Tullius Cicero, can hardly be ignored. This paper compares Hobbes?s ideas on personhood of the state with Cicero?s notion of persona civitatis, and attempts to describe how Hobbes reshaped Cicero?s guidelines for presenting legitimate authority into a prop for defending any effective authority. Hobbes absorbs Cicero?s influential argument and builds on the idea of civic representation (...) as guardianship done by role-playing, while tearing down Cicero?s account?s ethical foundations. In contrast to Cicero?s magistrate, the social role of Hobbes?s sovereign is not scripted by ethical constrains: its purpose is not to restrict license, but to present it. (shrink)

The articles in this volume offer a fresh perspective on the important role of the concept of law (lex) in the moral and political philosophy of the 'School of Salamanca'.

In this paper, I develop an epistemological argument for freedom from poverty, building on Gerald Gaus’ work on political and moral disagreement in New Diversity Theory (NDT). NDT argues that diversity and disagreement are fundamental to political and moral learning. In this paper, I address Gaus’ central arguments in NDT, and focus on what I argue to be the key epistemological distinction of his account—namely, the argument that the relevant diversity, which is conducive to political and moral learning and should (...) therefore be protected by an institutional order, should not be defended or defined by reference to its performance with regards to discovery of true beliefs, but by reference to the independent epistemic value of protection of disagreeing, redundant and distant investigators. I develop a restatement of this argument from the perspective of institutional epistemology, and show that (along with constitutional liberties, polycentric self-governance and markets) freedom from poverty must be considered an institutional “device” conducive to such a conception of diversity. While Gaus rejects redistributive policies at the level of an institutional order, it is precisely his account of the epistemic powers of diversity and disagreement which provides the strongest defense of minimal redistribution. (shrink)

Effective and specifically targeted social and therapeutic responses for antisocial personality disorders and psychopathy are scarce. Some authors maintain that this scarcity should be overcome by revising current syndrome - based classifications of these conditions and devising better biocognitive classifications of antisocial individuals. The inspiration for the latter classifications has been embedded in the Research domain criteria approach (RDoC). RDoC - type approaches to psychiatric research aim at transforming diagnosis, provide valid measures of disorders, aid clinical practice, and improve health (...) outcomes by integrating the data on the genetic, neural, cognitive, and affective systems underlying psychiatric conditions. In the first part of the paper, we discuss the benefits of such approaches in comparison to the dominant syndrome-based ones and review recent attempts at building biocognitive classifications of antisocial individuals. Other researchers, how ever, have objected that biocognitive approaches in psychiatry are committed to an untenable form of explanatory. (shrink)

Both G.F.W. Hegel and Carl Schmitt took seriously the problem of political sovereignty entailed by liberal political theories. In Dictatorship (1919) and Political Theology (1922), Schmitt rejects liberal political theories that argue for the immediate unity of democracy and legality i.e., popular sovereignty, because he thinks they cannot secure political sovereignty. In the Philosophy of Right, Hegel denounces popular sovereignty for similar reasons. Yet given Schmitt’s negative assessment of Hegel their positions are seldom related to one another. I argue in (...) this paper that Schmitt’s analysis of liberal political theories is similar to Hegel’s analysis of Rousseau’s liberal ideas. I contend, however, that Schmitt’s solution, which collapses the distinction between the executive and the legislative power in favor of the former, fails to secure political sovereignty. Contrary to Schmitt, Hegel conceives of the liberal predicament as a basic determination of any political state that rests on the division of the legislative and executive power. Hegel argues that the constitutional monarchy is a genuine instantiation of political sovereignty that can maintain not only the division of these powers, but also their unity. In this regard, I argue that Hegel’s conception of the division of powers provides a more convincing theory of the problem afflicting modern states than Schmitt’s and at least deserves to be taken more seriously by critics of Schmitt’s solution such as Hannah Arendt, Leo Strauss, Jurgen Habermas, Andreas Kalyvas and Chantal Mouffe. (shrink)

This paper considers the question of whether the influential distinction between levels of explanation introduced by David Marr can be used as a general framework for contemplating levels of explanation in cognitive sciences. Marr introduced three levels at which we can explain cognitive processes: the computational, algorithmic, and implementational levels. Some argue that Marr’s levels of explanation can only be applied to modular cognitive systems. However, since many psychological processes are non-modular, it seems that Marr’s levels of explanation cannot explain (...) such psychological processes. To show that the latter claim is not convincing, the paper draws upon an influential paradigm from cognitive sciences that is based on the principle of free energy. Based on this paradigm, the paper argues that even non-modular psychological processes can be computationally analyzed and algorithmically implemented. The conclusion of the paper is that, at least under the assumption that the func- tion of the mind is to minimize free energy, Marr’s levels of explanation can be successfully used as a general framework for understanding psychological processes at different levels of description. (shrink)

Dieser Band behandelt umfassend und systematisch die Frage des Patientenwillens: die historischen und philosophischen Grundlagen des Willensbegriffs, die Beziehung von Autonomie und Wille und praktische Fragen der Bioethik und des Biorechts. Die Herausgeber: PD Dr. Marko Fuchs lehrt Philosophie an der Universität Bamberg. Dr. Martin Hähnel lehrt Philosophie an der Universität Bremen und ist Koordinator des BMBF-Verbundvorhabens "Verantwortungsvoller Umgang mit Künstlicher Intelligenz in der Medizin" (VUKIM) Dr. Danaë Simmermacher lehrt Philosophie an der Martin-Luther-Universität Halle-Wittenberg.

We prove, by a probabilistic argument, that a class of ω-categorical structures, on which algebraic closure defines a pregeometry, has the finite submodel property. This class includes any expansion of a pure set or of a vector space, projective space or affine space over a finite field such that the new relations are sufficiently independent of each other and over the original structure. In particular, the random graph belongs to this class, since it is a sufficiently independent expansion of an (...) infinite set, with no structure. The class also contains structures for which the pregeometry given by algebraic closure is non-trivial. (shrink)

In ‘Reasoning and Regress’ I argued that inferring a conclusion from a set of propositions may simply consist in taking it that the conclusion follows from these propositions—thereby defusing familiar regress arguments. Sinan Dogramaci challenges the generality of this view, on the grounds that sometimes you may draw conclusions from no premisses that you believe. I respond by clarifying a distinction between the premisses of an argument from the reasons your conclusion is based upon. While suppositional reasoning may involve no (...) premisses in the former sense, it does not follow that it does not involve concluding something on the basis of reasons. This allows the view defended in ‘Reasoning and Regress’ to extend to suppositional reasoning. (shrink)

Any deviation of speed in a traffic flow from a speed limit represents a potential risk of traffic accidents, so speed management appears as an imperative. However, an inadequately set speed limit often causes drivers’ noncompliance to it in the conditions of real traffic flow. By determining the value of exceeding the speed limit according to vehicle classes, it is possible to recommend a credible speeding value that can be considered credible up to a value above the speed limit. In (...) this paper, deterministic multistep mathematical models of speed deviation from the speed limit as a function of longitudinal gradient for the proposed vehicle classes were developed. A total of 11 measuring sections with different traffic flow types were analyzed. Based on a detailed analysis of speeding, models for the deviation of the 15th, 50th, and 85th percentiles were obtained, with the aim of adjusting the credible deviation to control measures. The results obtained in this study were compared with a survey of traffic flow speeding on two-lane roads conducted in Serbia. (shrink)

The prediction error minimization framework denotes a family of views that aim at providing a unified theory of perception, cognition, and action. In this paper, I discuss some of the theoretical limitations of PEM. It appears that PEM cannot provide a satisfactory explanation of motivated reasoning, as instantiated in phenomena such as self-deception, because its cognitive ontology does not have a separate category for motivational states such as desires. However, it might be thought that this objection confuses levels of explanation. (...) Self-deception is a personal level phenomenon, while PEM offers subpersonal explanations of psychological abilities. Thus, the paper examines how subpersonal explanations couched in the PEM framework can be thought of as related to personal level explanations underlying self-deception. In this regard, three views on the relation between personal and subpersonal explanations are investigated: the autonomist, the functionalist, and the co-evolutionary perspective. I argue that, depending on which view of the relation between the personal and subpersonal is adopted, the PEM paradigm faces a dilemma: either its explanatory ambitions should be reduced to the subpersonal domain, or it cannot provide a satisfactory account of motivated reasoning as instantiated in self-deception. (shrink)

The book provides an overview of the contemporary discussion of the mind-body problem. This discussion takes its modern form during the 17th century in the works of René Descartes. The book covers the most important points of view in modern philosophy of mind. An important thesis of the book is that contemporary debates are still heavily influenced by Descartes’ arguments, especially those related to the nature of consciousness. (Google translate).

Das griechische Wort syllogismos besteht aus der Vorsilbe syl- und dem Wort logismos. Platon verwendet es gelegentlich im Sinne von ›Überlegung‹. Aristoteles prägt den technischen Begriff des ›Syllogismos‹ im Sinne von ›gültiger deduktiver Schluss‹.

Gilbert's kisceral argumentation is, roughly speaking, about arguing based on intuitions. In the forefront of such a (rhetorical) model are arguers and audiences, who resolve disagreements using kisceral arguments. Intuitions as reasons were more important in pre-modern law, when the law was not as explicit, precise, and determinate as today. Law influenced by religion or religious law was a typical example. In our much more secular modern era, intuitions are more or less subordinated to the (legal) logical mode of arguing. (...) However, in tough legal cases, when logic "runs out," it is values that decide them. Not surprisingly, neuroscience and cognitive psychology have shown a strong connection between values and intuition. (shrink)

The issue whether psychopathic offenders are practically rational has attracted philosophical attention. The problem is relevant in theoretical discussions on moral psychology and in those concerning the appropriate social response to the crimes of these individuals. We argue that classical and current experiments concerning the instrumental learning in psychopaths cannot directly support the conclusion that they have impaired instrumental rationality, construed as the ability for transferring the motivation by means-ends reasoning. In fact, we defend the different claim that these experiments (...) appear to show that psychopaths in certain circumstances are not aware of the relevant means for their ends. Moreover, we suggest how further empirical research could help to settle the issue. (shrink)

The philosophical literature on reasoning is dominated by the assumption that reasoning is essentially a matter of following rules. This paper challenges this view, by arguing that it misrepresents the nature of reasoning as a personal level activity. Reasoning must reflect the reasoner’s take on her evidence. The rule-following model seems ill-suited to accommodate this fact. Accordingly, this paper suggests replacing the rule-following model with a different, semantic approach to reasoning.

The work tends to point out the deficiency of some opinions claiming simplified presentation of the promise as the act that directly rise obligation for the promisor. Promises, either in the moral or legal sphere, are based on communication and so form an order of dependent steps that indicates their procedural nature. These characteristics may differ to a lesser extent, depending on the legal systems, moral norms of the society and its technical level and its needs. In all these cases, (...) however, the procedural characteristics of promises, especially in conditional promises, as well as the promises in contractual relations, persists. In our analysis we wish to show that the consistent conception of promise has to take into account a step of acceptance. The outcome of this approach relativizes a strong distinction between promise and offer. (shrink)

Recently it has been argued that certain neuropsychological findings on the decision-making, instrumental learning, and moral understanding in psychopathic offenders offer reasons to consider them not criminally responsible, due to certain epistemic and volitional impairments. We reply to this family of arguments, that collectively we call the irresponsibility of the psychopath argument. This type of argument has a premise that describes or prescribes the deficiencies that grant or should grant partial or complete criminal exculpation. The other premise contends that neuropsychological (...) evidence shows that psychopaths have incapacitates that are sufficient to ascribe complete or partially exculpatory deficiencies. The focus of our criticism is this latter premise. We argue that it requires that psychopathy should correlate significantly with certain rational incapacities that manifest across contexts. We show that the available neuropsychological data do not support the claim that psychopaths have such general exculpatory incapacities. (shrink)

In response to Albrecht et al.’s (J Agric Environ Ethics 26(4):827–845, 2013) discussion on the ethics of assisted migration, we emphasize the issues of risk and scientific uncertainty as an inextricable part of a comprehensive ethical evaluation. Insisting on a separation of risk and ethical considerations, although arguably common in many policy contexts, is at best misguided and at worst damaging.

A classic debate in the history of philosophy is that between rationalists and empiricists concerning the “true” source of human knowledge. In legal philosophy this debate has been reflected in the classic opposition between natural law and legal positivist perspectives. Even the currently predominant inclusivist perspectives on the nature of law, such as inclusive legal positivism and inclusive legal non-positivism, are not immune to such a dichotomy. In this paper I attempt to present an understanding of specific cognitive characteristics of (...) prevailing legal theories from the perspective of the theory of psychological types as developed by Carl G. Jung. (shrink)

This daily diary study examined the within-person coupling between four emotion regulation strategies and both subjective well-being and perceived stress in daily life of geriatric nurses. Participants (N = 89) described how they regulated their emotions in terms of cognitive reappraisal and suppression. They also indicated their subjective well-being and level of perceived stress each day over three weeks. At the within-person level, cognitive reappraisal intended to increase positive emotions was positively associated with higher subjective well-being and negatively associated with (...) perceived stress. Suppression of the expression of positive emotions was negatively associated with subjective well-being and positively associated with perceived stress. However, cognitive reappraisal intended to down-regulate negative emotions and suppression as a strategy to inhibit the expression of negative emotions were not associated with daily well-being or perceived stress. Off-days were rated as days with higher subjective well-being and lower perceived stress in contrast to working days. At the between-person level, individuals who reported more daily negative affect reported increased suppression of positive emotions, corroborating the within-person findings. Moreover, findings indicated that nurses with more years of experience in the job reported higher subjective well-being and less perceived stress. These results provide insights into important daily emotional processes of geriatric nurses, both at workdays and in their leisure time. (shrink)

The recurring claim that the construct of psychopathy is value laden often is not qualified in enough detail. The chapters in this part of the volume, instead, investigate in depth the role and significance of values in different aspects of the construct of psychopathy. Following these chapters, but also by offering a background to them, we show how certain values are involved in the characterisation of psychopathy, inform societal needs satisfied by this construct, and have a central role in determining (...) whether psychopathy is a mental disorder. Moreover, we relate this description to our criticism of the view that the entrenchment of the notion of psychopathy with values in principle renders it irreconcilable with sound psychiatric theory and practice. However, we also recognize that the value-ladenness of psychopathy leaves open other important challenges. Meeting them needs addressing interdisciplinary interrelated issues that have empirical, normative, and theoretical dimensions. (shrink)

The harm usually associated with psychopathy requires therapeutically, legally, and ethically satisfactory solutions. Scholars from different fields have, thus, examined whether empirical evidence shows that individuals with psychopathic traits satisfy concepts, such as responsibility, mental disorder, or disability, that have specific legal or ethical implications. The present paper considers the less discussed issue of whether psychopathy is a disability. As it has been shown for the cases of the responsibility and mental disorder status of psychopathic individuals, we argue that it (...) is undecided whether psychopathy is a disability. Nonetheless, based on insights from disability studies and legislations, we propose that interventions to directly modify the propensities of individuals with psychopathic tendencies should be balanced with modifications of the social and physical environments to accommodate their peculiarities. We also suggest how this social approach in some practical contexts that involve non-offender populations might be effective in addressing some of the negative effects of psychopathy. (shrink)

Building on Friedrich A. Hayek’s work in social philosophy, the paper gives an account of the central role of ignorance in institutional epistemology. The first part of the paper argues that if individuals involved in the search for knowledge are constitutionally ignorant and guided by norms, as Hayek saw them, they are more likely to attain knowledge if they follow different norms, including those that are redundant. The second part of the paper argues that the market as an institutional arrangement, (...) preferred by Hayek for its epistemic features, may lead to an epistemically detrimental reduction of agents following redundant norms. (shrink)

Regress arguments have convinced many that reasoning cannot require beliefs about what follows from what. In this paper I argue that this is a mistake. Regress arguments rest on dubious (although deeply entrenched) assumptions about the nature of reasoning — most prominently, the assumption that believing p by reasoning is simply a matter of having a belief in p with the right causal ancestry. I propose an alternative account, according to which beliefs about what follows from what play a constitutive (...) role in reasoning. (shrink)

MIRJAM HORN, POSTMODERN PLAGIARISMS: CULTURAL AGENDA AND AESTHETIC STRATEGIES OF APPROPRIATION IN US-AMERICAN LITERATURE, WALTER DE GRUYTER, BERLIN/BOSTON, 2015.Marko Bogunović.

In Prior Analytics 1.15 Aristotle undertakes to establish certain modal syllogisms of the form XQM. Although these syllogisms are central to his modal system, the proofs he offers for them are problematic. The precise structure of these proofs is disputed, and it is often thought that they are invalid. We propose an interpretation which resolves the main difficulties with them: the proofs are valid given a small number of intrinsically plausible assumptions, although they are in tension with some claims found (...) elsewhere in Aristotle’s modal syllogistic. The proofs make use of a rule of propositional modal logic which we call the possibility rule. We investigate how this rule interacts and coheres with the core elements of the modal syllogistic. (shrink)