Die Investiturstreit-Episode in der Alexias Anna Komnenes ist bemerkenswert detailliert. Neben der Kontroverse um die Simonie, wird auch die Frage der Rechtbzw. Unrechtmäßigkeit des Pontifikats Gregors VII. thematisiert, ebenso die Gegenkönigserhebung Rudolfs von Rheinfelden, die Schlacht an der Weißen Elster, der Tod des Gegenkönigs sowie das Bündnis zwischen Gregor VII. und Robert Guiscard. Der Normannenherzog ist der Anknüpfungspunkt der Autorin für die Ereignisse des Investiturstreits, der Grund dafür, dass dieser westliche Konflikt für sie von Bedeutung ist. Anna Komnenes Bericht erhält (...) jedoch auch Sondergut, Ereignisse, die sich nicht mit den westlichen Quellen in Einklang bringen lassen. Ein bedeutender Teil dieses Sonderguts ist insbesondere gegen Gregor VII. gerichtet, so etwa dessen Misshandlung der Gesandten Heinrichs IV., aber auch die suggerierte Teilnahme des Papstes an der Schlacht an der Weißen Elster. Diese antipäpstliche Tendenz dominiert die gesamte Episode. Sie wird nicht zuletzt an der Art und Weise deutlich, wie Anna Komnene das Aufeinandertreffen zwischen Gregor VII. und Robert Guiscard darstellt. Sie gestaltet die Begegnung als Herrschertreffen und übt somit massive Kritik an Papst Gregor VII., der sich demnach als weltlicher Herrscher geriert. Die Autorin gebraucht die stilistischen Mittel der Ironie und des Spotts, um Gregor in ein negatives Licht zu rücken. Sie präsentiert Gregor als Erfinder unmenschlicher Strafen, als überheblichen Barbaren, als Herrscher und Feldherrn, nie jedoch als einen sich seines Amtes würdig erweisenden Geistlichen. Der Umstand, dass Gregor VII. niemals beim Namen genannt, sondern anonym lediglich als 'Papst' bezeichnet wird, ist mehr als eine 'damnatio memoriae'. Durch Gregors Anonymisierung beschränkt sich die Kritik in der Alexias nicht auf das Individuum 'Gregor VII.', sondern sie wird im Gegenteil ausgeweitet auf die institutionelle Ebene des Papsttums. Die Schlechtigkeit und Boshaftigkeit Gregors VII., also des Papsttums überhaupt, in der Alexias verstärkt sich noch, wenn man diesem Verhalten dasjenige des konstantinopolitanischen Patriarchen gegenüberstellt. Ein Vergleich des in der Alexias geschilderten Verhaltensmusters des 'römischen Patriarchen' mit dem täglich erlebten Verhaltensmuster des 'konstantinopolitanischen' drängte sich dem Rezipienten der Alexias geradezu auf, so dass das päpstliche Verhalten als ὕβρις erscheinen musste. (shrink)

In everyday life, assumptions about our peers' as well as our own personality shape social interactions. We investigated whether self-rated personality and inferences drawn from partners' faces influence economic decisions. Participants (N= 285) played the trust game in the role of the trustor as well as the ultimatum game in the role of the proposer and interacted with trustees and receivers represented by prototypical personality faces. Participants also evaluated both their own traits and the personality of the faces. In the (...) trust game, trustees represented by faces rated higher on agreeableness yielded higher transferred amounts. This effect was more pronounced for trustors low on dispositional trust, whereas trustors high on dispositional trust did not relate their decisions to the faces. Trustees represented by faces rated higher on conscientiousness yielded higher transferred amounts only for trustors high on dispositional anxiety. In the ultimatum game, receivers represented by faces rated higher on conscientiousness yielded lower offers only for proposers high on dispositional assertiveness. These results extend previous findings on the inferences drawn from facial features and the influence of personality on decision making. They highlight the importance of considering the personality of both interaction partner, as well as potential interactions of players' traits. (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 investigated the influence of social status on behavior in a modified dictator game. Since the DG contains an inherent dominance gradient, we examined the relationship between dictator decisions and recipient status, which was operationalized by three social identities and an artificial intelligence. Additionally, we examined the predictive value of social dominance orientation on the behavior of dictators toward the different social and non-social hierarchical recipients. A multilevel model analysis showed that recipients with the same status as the dictator benefited (...) the most and the artificial intelligence the least. Furthermore, SDO, regardless of social status, predicted behavior toward recipients in such a way that higher dominance was associated with lower dictator offers. In summary, participants treated other persons of higher and lower status equally, those of equal status better and, above all, an algorithm worst. The large proportion of female participants and the limited variance of SDO should be taken into account with regard to the results of individual differences in SDO. (shrink)

Virtual reality enables individuals to be exposed to naturalistic environments in laboratory settings, offering new possibilities for research in human neuroscience and treatment of mental disorders. We used VR to study psychological, autonomic and postural reactions to heights in individuals with varying intensity of fear of heights. Study participants were immersed in a VR of an unprotected open-air elevator platform in an urban area, while standing on an unstable ground. Virtual elevation of the platform elicited robust and reliable psychophysiological activation (...) including increased distress, heart rate, and electrodermal activity, which was higher in individuals suffering from fear of heights. In these individuals, compared with individuals with low fear of heights, the VR height exposure resulted in higher velocity of postural movements as well as decreased low-frequency body sway oscillations. This indicates that individuals with strong fear of heights react to heights with maladaptive rigidity of posture due to increased weight of visual input for balance control, while the visual information is less reliable at heights. Our findings show that exposure to height in a naturalistic VR environment elicits a complex reaction involving correlated changes of the emotional state, autonomic activity, and postural balance, which are exaggerated in individuals with fear of heights. (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 study, we examine the influence of senior leadership on firms’ corporate social responsibility. We integrate upper echelons research that has investigated either the influence of the CEO or the top management team on CSR. We contend that functional experience complementarity between CEOs and TMTs in formulating and implementing CSR strategy may underlie differentiated strategies in CSR. We find that when CEOs who have predominant experience in output functions are complemented by TMTs with a lower proportion of members who (...) have experience in output functions, there is a pronounced effect on the community, product, and diversity dimensions of CSR. In turn, when output-oriented CEOs are complemented by output-oriented TMTs, we observe an effect on the employee relations dimension of CSR. Interestingly, we find no influence of CEO-TMT complementarity on the environment dimension of CSR. In general, our empirical results support the relevance of the interaction between CEOs and their TMTs in defining their firms’ CSR profile. (shrink)

This article examines the possible roots of the sixth-century astrologer/astronomer, Varāhamihira. Ritual instructions from astrological texts on the yātrā are compared with the preliminary services of the Atharvaveda Śāntikalpa to demonstrate that much of the astrological ritual system can be seen as an adaptation of Atharvan śānti ritual. This analysis illuminates both the possible interchange between Vedic and Jyotiḥśāstric ritual systems and Varāhamihira’s considerable expertise as a ritualist.

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.

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)

Martin Wrights original ground-breaking and influential analysis of the defects of the adversarial system of justice, plus the arguments in favour of a more ...

Heidegger in America explores the surprising legacy of his life and thought in the United States of America. As a critic of modern life, Heidegger often lamented the growing global influence of all things American. However, it was precisely in America where his thought inspired the work of generations of thinkers – not only philosophers but also theologians, architects, novelists, and even pundits. As a result, the reception and dissemination of Heidegger's philosophical writings transformed the intellectual and cultural history of (...) the United States at a time when American influence was itself transforming the world. A case study in the complex and sometimes contradictory process of transnational exchange, Heidegger in America recasts the scope and methods of contemporary intellectual and cultural history in the age of globalization, challenging what we think we know about Heidegger and American ideas simultaneously. (shrink)

In this lively collection ten philosophers tackle the notoriously elusive issues raised by religious discourse in a series of linked debates. The debates focus on reason and faith; the logic of mysticism; the meaning of the word 'God'; language, biblical interpretation and worship; and religion and ethics. Through contemporary philosophical analysis it is possible to shed new light on teh status and language of religion, and in many ways the contributors to Religion and Philosophy break new ground in this perennially (...) controversial field. The collection is addressed to philosophers, theologians and anyone with a general intellectual interest in religion. Certainly it will be a valuable addition to the reading list of all teachers or students of the philosophy of religion. (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)

Attempts to explain behavior genetically face two major problems: the application of the concept of genetic coding and the theoretical possibility of decomposing behavior. This paper argues that using the notion of genetic coding is appropriate in explanations of protein synthesis but inadequate and even misleading in the context of explanations of behavior. Genes should be regarded as disparate components of mechanisms that account for behavior rather than as codes for behavioral phenotypes. Such mechanistic explanations, however, presuppose the possibility of (...) decomposing behavioral phenotypes, which is strongly disputed by researchers holding an interactionist view of behavior. It is argued that these researchers fail to distinguish etiological from constitutive decomposition, and that their objections apply to the former but not to the latter kind. Constitutive decomposition might identify genes as disparate components and open up the possibility of explaining behavior mechanistically by isolating causal paths from genes to behavior. Finally, research on the single gene disorder phenylketonuria is introduced to illustrate and test these views. With respect to this disorder it is demonstrated that applying the concept of genetic coding would be inappropriate and misguiding, while nonetheless the phenotype is decomposable and can be explained mechanistically by singling out a genetic causal path.t is demonstrated that applying the concept of genetic coding would be inappropriate and misguiding, while nonetheless the phenotype is decomposable and can be explained mechanistically by singling out a genetic causal path. (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)

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)

: One of the outcomes from low self-confidence of basketball is aggressive behavior. Helpless feeling caused by low self-confidence could turn an athlete using aggressive behavior as alternate behavior in the interaction with the opponent during a game. The level of the aggression can be seen in the injury rate in that particular sport. This research objective is to find out the relation between self-confidence and the appearance of the aggressive behavior in basketball player. It involves 64 athletes in West (...) Jakarta between 17 to 28 years old. Data that was measured by questionnaires has shown there is a negative association between self-confidence and aggressive behavior in basketball athlete.  . (shrink)

Immersive virtual environments can produce a state of behaviour referred to as ‘presence’, during which the individual responds to the virtual environment as if it were real. Presence can be arranged to scientifically evaluate and affect our consciousness within a controlled virtual environment. This phenomenon makes the use of virtual environments amenable to existing and in-development forms of therapy for various conditions. Delirium in the intensive care unit (ICU) is one such condition for which virtual reality (VR) technology has not (...) been evaluated to date. We are currently assessing the feasibility and utility of a delirium prevention and treatment system, which implements VR to improve quality of sleep, reduce pain, lower usage of sedatives, and stimulate cognition. The proposed system will consist of 3-axis wearable accelerometers, 6-DOF position trackers, a VR system and apps designed to promote sleep quality and mindfulness. Our a priori hypothesis is that our VR therapy system would lower the occurrence of delirium in patients admitted to ICUs. (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)

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)

This paper deals with the problem of the subject in Bachelard?s concept of surrationalism. Focusing on the epistemological character of surrational creativity, the issue of the subject is approached through the analysis of the relationship between subjectivity and objectivity in the surrational act. Comparing the character of novelty in surrealism and surrationalism, the paper introduces Bachelard?s distinction between formal and material imagination, with the latter further discussed through the prepositions?against? [contre] and?in? [dans]. Bachelard?s theory of the internal dialectic - the (...) theory of subdivision of the subject - is analyzed through his concept of reverie. The last chapter deals with the dialectic between the apodictic and the assertoric subject, aiming to reconsider the idea of interiority and repose. (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)

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)

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 aim of this work is to show, first of all, how landscape cannot but stand out on the horizon of a cognitive flux that affects every aspect of our being in the world (or, better said, of our being in the world) world). A special role will be reserved for aesthetic mediation, to be understood as a n act that regulates the epistemic negotiation between what is in the center and what is ”in the surroundings”. In this sense, the (...) work will start from bio cognitive assumptions on the species specific ways in which an organism circumscribes and enriches its world, and will then finally arrive at considerations that should, in our hopes, demonstrate how aisthesis is, in fact, the conceptual category that best lends itself to describing this process, in virtue of the particular gnoseological value it assigns to the se nsitive body and its extension extension. (shrink)

What exactly is reasoning? While debate on this question is ongoing, most philosophers seem to agree on at least the following: reasoning is a mental process operating on contents, which consists in adopting or revising some of your attitudes in light of others. In this paper, I argue that this characterisation is mistaken: there is no single mental phenomenon that satisfies both of these conditions. Instead, I characterise two distinct mental phenomena, which I call ‘deducing’, on the one hand, and (...) ‘reasoning’ or ‘inference’ on the other, to play each of these roles. Recognising this division of labour is essential to developing a better understanding of our rational economy. (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)

In their paper “Is psychopathy a mental disease?”, Thomas Nadelhoffer and Walter Sinnott-Armstrong argue that according to any plausible account of mental disorder, neural and psychological abnormalities correlated with psychopathy should be regarded as signs of a mental disorder. I oppose this conclusion by arguing that at least on a naturalistically grounded account, such as Wakefield’s ‘Harmful Dysfunction’ view, currently available empirical data and evolutionary considerations indicate that psychopathy is not a mental disorder.

Greek antiquity saw the development of two distinct systems of logic: Aristotle’s theory of the categorical syllogism and the Stoic theory of the hypothetical syllogism. Some ancient logicians argued that hypothetical syllogistic is more fundamental than categorical syllogistic on the grounds that the latter relies on modes of propositional reasoning such asreductio ad absurdum. Peripatetic logicians, by contrast, sought to establish the priority of categorical over hypothetical syllogistic by reducing various modes of propositional reasoning to categorical form. In the 17th (...) century, this Peripatetic program of reducing hypothetical to categorical logic was championed by Gottfried Wilhelm Leibniz. In an essay titledSpecimina calculi rationalis, Leibniz develops a theory of propositional terms that allows him to derive the rule ofreductio ad absurdumin a purely categorical calculus in which every proposition is of the formA is B. We reconstruct Leibniz’s categorical calculus and show that it is strong enough to establish not only the rule ofreductio ad absurdum, but all the laws of classical propositional logic. Moreover, we show that the propositional logic generated by the nonmonotonic variant of Leibniz’s categorical calculus is a natural system of relevance logic known as RMI$_{{}_ \to ^\neg }$. (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)