A common objection to sense-datum theories of perception is that they cannot give an adequate account of the fact that introspection indicates that our sensory experiences are directed on, or are about, the mind-independent entities in the world around us, that our sense experience is transparent to the world. In this paper I point out that the main force of this claim is to point out an explanatory challenge to sense-datum theories.

Wie kein anderer Philosoph vor oder nach ihm thematisierte Heidegger die metaphysischen Denkschemata, die der abendländisch-neuzeitlichen Technikentwicklung zugrunde liegen. Auf verständliche Weise rekonstruiert dieses Buch Heideggers radikal metaphysikkritischen Ansatz vor dem Hintergrund seiner frühen und mittleren Schriften. Dabei wird nicht nur deutlich, wie sehr sein spätes Denken der Technik in Kontinuität zu seinem frühen fundamentalontologischen Projekt (und dessen Scheitern) steht, sondern es werden auch die Alternativen zum rechnenden Denken und Handeln in Kunst und Dichtung aufgezeigt. (Quelle: www.buchhandel.de).

The political public sphere is important for democracy, and it is changing – this is how the quintessence of Jürgen Habermas’s monumental study on The Structural Transformation of the Public Sphere (1989) could be summarized in simple words. In the fields of political sociology and social theory, history, but also research on social movements, cultural studies, and media and communication studies, his conception of the public sphere as a sphere mediating between the state and civil society has had a decisive (...) influence on the debate about the potential of collective reason for modern democracy. In this introduction we give a short overview of Habermas’s arguments on the rise and fall of the bourgeois public sphere, demonstrate the necessary link between the public sphere and democracy and, referring to the contributions to this special issue, sketch current transformations of the public sphere along three basic processes – digitalization, commodification, and globalization. (shrink)

Philosophers of logic are particularly interested in understanding the aims, epistemology, and methodology of logic. This raises the question of how the philosophy of logic should go about these enquires. According to the practice-based approach, the most reliable method we have to investigate the methodology and epistemology of a research field is by considering in detail the activities of its practitioners. This holds just as true for logic as it does for the recognised empirical and abstract sciences. If we wish (...) to systematically understand the aims and epistemology of logic, we are best placed achieving this by looking at what logicians do, rather than reflecting upon the nature of logic itself. In this entry, we outline the motivations for a practice-based approach towards the philosophy of logic and highlight its advantages over more “top-down” approaches, which attempt to infer conclusions about the nature of logic and its methodology on the basis of traditional assumptions about knowledge, metaphysics, or logic itself. We end by addressing several prominent concerns raised against the practice-based approach. (shrink)

Joan Stambaugh's translations of the works of Heidegger, accomplished with his guidance, have made key aspects of his thought and philosophy accessible to readers of English for many years. This collection, writes Stambaugh, contains Heidegger's attempt "to show the history of Being as metaphysics," combining three chapters from the philosopher's Nietzsche ("Metaphysics as a History of Being," "Sketches for a History of Being as Metaphysics," and "Recollection in Metaphysics") with a selection from Vortrage und Aufsatze ("Overcoming Metaphysics").

Questions concerning the proof-theoretic strength of classical versus nonclassical theories of truth have received some attention recently. A particularly convenient case study concerns classical and nonclassical axiomatizations of fixed-point semantics. It is known that nonclassical axiomatizations in four- or three-valued logics are substantially weaker than their classical counterparts. In this paper we consider the addition of a suitable conditional to First-Degree Entailment—a logic recently studied by Hannes Leitgeb under the label HYPE. We show in particular that, by formulating the theory (...) PKF over HYPE, one obtains a theory that is sound with respect to fixed-point models, while being proof-theoretically on a par with its classical counterpart KF. Moreover, we establish that also its schematic extension—in the sense of Feferman—is as strong as the schematic extension of KF, thus matching the strength of predicative analysis. (shrink)

These are the very scholars that were involved in initiating the revolution in personal identity theory.

The first English translation of one of Heidegger's most important early lecture courses, including his most extensive treatment of the topic of destruction.

A political challenge facing constitutional democracies in Africa is the lack of adequate representation and participation of citizens in democratic processes and institutions. This challenge is manifest in the vesting of power solely in, and the exercise of this power by, a sectional group – the majority party – to the exclusion of others; as evinced in the liberal democratic systems extensively practised on the continent. Wiredu proposes as a solution to these challenges the adoption of consensual democracy; an indigenous, (...) non-party democratic system rooted in the traditional African humanist and communitarian conceptions of the individual and the community, in which political decisions are characteristically reached by consensus. In this article, I present a critical exposition of Wiredu’s consensual democracy and defend it against liberal democracy on the one hand, and criticisms levelled against it on the other hand. I also offer some modifications to Wiredu’s theory in a bid to render it more suitable for practice in Africa. (shrink)

In this paper we apply proof theoretic methods used for classical systems in order to obtain upper bounds for systems in partial logic. We focus on a truth predicate interpreted in a Kripke style way via strong Kleene; whereas the aim is to connect harmoniously the partial version of Kripke–Feferman with its intended semantics. The method we apply is based on infinitary proof systems containing an ω-rule.

Historical Epistemology: On the Diversity and Change of Epistemic Values in Science. Historical epistemology involves the claim that the system of scientific knowledge is not determined by the observations but is also subject to epistemic requirements that may change in the historical process of doing research. As a result, the system of knowledge is path‐dependent in that its shape is contingent on epistemic choices made at certain historical points. I attempt to elaborate this approach by drawing attention to the double (...) role of epistemic values. First, such values create relations of significance and thereby contribute to directing research into certain avenues. Second, they are also important in the process of confirmation in that they entail that certain forms of agreement with the facts are superior and preferable to other such forms. Some epistemic orientations and reorientations can be reconstructed as arising from an interaction with nature, but others are based on commitments to the kind of knowledge we appreciate. The epistemic authority of science is created in large measure by rules of the scientific community that express how to deal with knowledge claims. (shrink)

This paper examines the question of whether human rights are related to ontology. It examines perspectives on this question from human rights theories in the Western and African traditions of philosophy and defends the thesis that a good account of human rights requires an explicit ontology of the human, and that taking this seriously engenders divergent conclusions about what rights are. It then proceeds to claim that the African Charter on Human and Peoples’ Rights adds substantive features to the International (...) Bill of Human Rights, and that the Charter expresses Kwame Gyekye’s ontology of the human being. (shrink)

Moral character is explored in all its dimensions: virtues, vices, attitudes, emotions, commitments, and personal relationships, in addition to right and wrong conduct. The aim is to stimulate personal reflection and group dialogue, rather than to offer solutions. It seeks to sharpen ideas which we use as tools in coping responsibly with our daily lives.

The first case of COVID-19 infection in Africa was recorded in Egypt on 14 February 2020. Following this, several projections of the possible devastating effect that the virus can have on the population of African countries were made in the Western media. This paper presents evidence for Africa’s successful responses to the COVID-19 pandemic and under-reporting or misrepresentation of these successes in Western media. It proceeds to argue for accounting for these successes in terms of Africa’s communitarian way of life (...) and conceptions of self, duty, and rights; and that a particular orientation in theorizing on global justice can highlight the injustices inherent in the misrepresentation of these successes and contribute shared perspectives to formulating a framework of values and concepts that would facilitate the implementation of global policy goals for justice. The paper is thus grounded in a rejection of the insular tenets of theorizing prevalent in the global justice debate and to persistent inclinations in Western scholarship to the thinking that theorizing in the African context that draws inspiration from the cultural past has little to contribute to the quest for justice globally. On the contrary, it argues that reflexive critique of cultural history is a necessary source of normative ideals that can foster tolerant coexistence and a cooperative endeavour toward shared conceptions of justice in the contemporary world. (shrink)

Mr. B. A. Farrell has argued that psychoanalysis is refutable, without clarifying different senses of 'refutable'. Once this clarification is done and the relevant literature examined, however, it is seen that psychoanalysis is not refutable in several important senses of 'refutable', although it is refutable in a sense that is quite uninteresting.

There has been extensive work in the space of Indigenous epistemological approaches to research. Because Australian Indigenous peoples have been researched significantly, there are guidelines around the ethical and cultural conduct of this type of research. Via investigating the Academy’s approach to research in general, we can illuminate the vast differences between empirical approaches to research from the ‘West’ compared to knowledge acquisition and sharing through ‘relationality’ from an Indigenous perspective. This paper investigates this dichotomy and brings into question the (...) premise of power and value attributed to each approach, arguing that this is still not an equal ascription. This paper posits a reconfiguration of approaches to research as a way of extending on research in general, and provides a platform of how Indigenous knowledges can extend on and reconfigure, in a positive way, approaches to research. (shrink)

Reasoning and change over inconsistent knowledge bases is of utmost relevance in areas like medicine and law. Argumentation may bring the possibility to cope with both problems. Firstly, by constructing an argumentation framework from the inconsistent KB, we can decide whether to accept or reject a certain claim through the interplay among arguments and counterarguments. Secondly, by handling dynamics of arguments of the AF, we might deal with the dynamics of knowledge of the underlying inconsistent KB. Dynamics of arguments has (...) recently attracted attention and although some approaches have been proposed, a full axiomatization within the theory of belief revision was still missing. A revision arises when we want the argumentation semantics to accept an argument. Argument Theory Change encloses the revision operators that modify the AF by analyzing dialectical trees—arguments as nodes and attacks as edges—as the adopted argumentation semantics. In this article, we present a simple approach to ATC based on propositional KBs. This allows to manage change of inconsistent KBs by relying upon classical belief revision, although contrary to it, consistency restoration of the KB is avoided. Subsequently, a set of rationality postulates adapted to argumentation is given, and finally, the proposed model of change is related to the postulates through the corresponding representation theorem. Though we focus on propositional logic, the results can be easily extended to more expressive formalisms such as first-order logic and description logics, to handle evolution of ontologies. (shrink)

In the Netherlands, euthanasia has been decriminalized. Termination of life on request and assisted suicide are criminal offences under Dutch law; but if physicians comply with the due care requirements of the Euthanasia Act and report their actions in the manner prescribed by law, they will not be prosecuted. One of the requirements relates to the act of euthanasia itself. If this is to be performed with due medical care, the physician relies on the services of a pharmacist. However, the (...) responsibilities of the pharmacist with respect to euthanasia are not laid down in law. At present, Dutch pharmacists have to make do with professional rules that do not offer adequate solutions for the problems that may arise when euthanasia is performed. (shrink)

Taking precautions to prevent harm. Whether principe de précaution, Vorsorgeprinzip, føre-var prinsippet, or försiktighetsprincip, etc., the precautionary principle embodies the idea that public and private interests should act to prevent harm. Furthermore, the precautionary principle suggests that action should be taken to limit, regulate, or prevent potentially dangerous undertakings even in the absence of absolute scientific proof. Such measures also naturally entail taking economic costs into account. With the environmental disasters of the 1980s, the precautionary principle established itself as an (...) operational concept. On the eve of the 1997 Climate Summit in Kyoto, precaution, as the precautionary principle is often referred to, has now become a key legal principle in environmental law, in general, and in current international climate negotiations, in particular, attempts to understand why. It examines in turn the natural affinity between the precautionary principle and climate change, reviews a series of issues which the principle raises, and discusses avenues which it opens paper, climate change fulfills the theoretical requirements set for the application of the precautionary principle. It comes as no surprise that the actual application of the precautionary principle in the context of climate change raises high political stakes. As a result, climate change science, in particular, and science, in general, is under the fire of politically-motivated scientific skeptics. Thus, by way of the counter-measures which must be put into effect, the precautionary principle calls for a greater sense of responsibility on the part of scientists and the public at large. Specifically, from scientists, it demands perseverance in rigor, excellence in communication, and committment to education. However, even if special efforts are made to implement the precautionary principle in the context of climate change, the success of climate change mitigation will constitute no test of the validity, the usefulness, or the efficiency of the precautionary principle. Indeed, the degree to which climate change mitigation succeeds only provides a measure of our kind's ability to manage responsibly the global commons which we inherited from our ancestors and which our generation enjoys, the global commons which we will pass on to today's children and to generations to come. (shrink)

Scientific inquiry is represented as a process of rational hypothesis revision in the face of data. For the concept of rationality, we rely on the theory of belief dynamics as developed in [5, 9]. Among other things, it is shown that if belief states are left unclosed under deductive logic then scientific theories can be expanded in a uniform, consistent fashion that allows inquiry to proceed by any method of hypothesis revision based on "kernel" contraction. In contrast, if belief states (...) are closed under logic, then no such expansion is possible. (shrink)

Though acknowledged by scholars, Plato’s identification of the Beautiful and the Good has generated little interest, even in aesthetics where the moral concepts are a current topic. The view is suspect because, e.g., it is easy to find examples of ugly saints and beautiful sinners. In this paper the thesis is defended using ideas from Plato’s ancient commentators, the Neoplatonists. Most interesting is Proclus, who applied to value theory a battery of linguistic tools with fixed semantic properties—comparative adjectives, associated gradable (...) adjectives, mass nouns, and predicate negations—all with a semantics that demand a privative scale of value. It is shown how it is perfectly possible to interpret value terms Platonically over privative Boolean algebras so that beautifuland good diverge while at higher levels other value terms are coextensional. Considerations are offered that this structure conforms to actual usage. (shrink)

The theoretical reliability of determinism. A review from the proposal of Mariano Artigas This article has two purposes. The first is to demonstrate that the theory of determinism, which claims to be based on the principles of experimental science, cannot be considered as an explanation compatible with such sciences. To do this, we use some ideas of Mariano Artigas on the explanatory power of scientific theories and their reliability from his book The Mind of the Universe. Through this process we (...) seek to achieve the second objective: to show the importance of the work of Artigas to dissolve complex contemporary debates, such as the current discussion about the existence of human freedom. (shrink)

Karl Marx had to deal with a situation that bears an uncanny resemblance to the current predicament of trade unions regarding immigrant workers. The First International faced the threat of an internal division along ethnic and national lines around the Irish question, and more specifically around the role played by Irish immigrants in England. Firstly, I will argue that Marx’s late work on Ireland, and especially his change of opinion on its tactical importance, cannot be isolated from his vigorous manoeuvring (...) within the International to prevent an internal rift over the question of immigrant workers. Secondly, I will contend that Marx’s theoretical contribution on the Irish question fails to consider that class politics are not only international in nature, but also transnational. Consequently, Marx overlooks the tactical importance of immigrant workers who could play a pivotal role in challenging exploitative and oppressive ties on the international scene. (shrink)

So-called "transparency theories" of self-knowledge, inspired by a remark of Gareth Evans, claim that we can obtain knowledge of our own beliefs by directing out attention towards the world, rather than introspecting the contents of our own minds. Most recent transparency theories concentrate on the case of self-knowledge concerning belief and desires. But can a transparency account be generalised to knowledge of one's own perceptions? In a recent paper, Alex Byrne (2012) argues that we can know what we see by (...) inferring from visual facts about our environment because such facts can exclusively be known by us through vision. I discuss his proposal and object that visual facts, as conceived of by Byrne, are odd: they cannot be remembered and we cannot, as yet, write them down. More needs to be said about them to make his account plausible. (shrink)

The discovery of “molecular chaperones” has dramatically changed our concept of cellular protein folding. Rather than folding spontaneously, most newly synthesized polypeptide chains seem to acquire their native conformation in a reaction mediated by these versatile helper proteins. Understanding the structure and function of molecular chaperones is likely to yield useful applications for medicine and biotechnology in the future.

Most readers of Habermas would not classify him as an existential thinker. The view of Habermas as a philosopher in German Idealist and Critical traditions from Kant to Hegel and Marx to the Frankfurt School prevails among Continental as much as among analytic philosophers. And the mainstream Anglo-American reception of his work and politics is shaped by the approaches of formal analysis rather than those of existential and social phenomenology or even current American pragmatism. One may argue that both these (...) readings eclipse richer existential dimensions of a thinker who challenges the notorious methodological and political splits among analytic, Continental and pragmatist orientations. I argue that Habermas’ critical relation to Heidegger’s a historical history of Being and his misguided political career cannot explain a competing narrative of his own affirmative appropriation of existential-ethical dimensions of thought and activism. Second, if one sets in the foreground this competing narrative, there emerges a weak thesis, whether or not a plausible complementarity between the communications critical social theory and concrete existential categories can be established. Third, one may inquire further into a stronger thesis whether or not this link must be developed in order to render Habermas’ own theory of a communicatively competent self sufficiently concrete and critical. (shrink)

Given a Mahlo cardinal κ and a regular ε such that $\omega_1 we show that $\diamond_\kappa (cf = \epsilon)$ holds in V provided that there are only non-stationarily many $\beta , with o(β) ≥ ε in K.