In this paper we consider an intuitionistic variant of the modal logic S4 (which we call IS4). The novelty of this paper is that we place particular importance on the natural deduction formulation of IS4— our formulation has several important metatheoretic properties. In addition, we study models of IS4— not in the framework of Kirpke semantics, but in the more general framework of category theory. This allows not only a more abstract definition of a whole class of models but also (...) a means of modelling proofs as well as provability. (shrink)

The present paper explores, theoretically, and empirically, whether compliance with the International Code of marketing of breast-milk substitutes impacts on financial performance measured by stock markets. The empirical analysis, which considers a 20-year period, shows that stock markets are indifferent to the level of compliance by manufacturers with the International Code. Two important issues emerge from this result. Based on our finding that financial performance as measured by stock markets cannot explain the level of compliance, the first issue refers to (...) what alternative types of mechanisms drive manufacturers who comply the least with voluntary codes such as the International Code. Conversely, from our finding that stock markets do not reward the most compliant, the second issue raised is an inherent weakness of stock markets to fully incorporate social and environmental values. (shrink)

O presente artigo visa problematizar a concepção de música proposta pelo filósofo Friedrich Schelling em sua obra ‘Filosofia da Arte’, na qual essa forma artística é concebida enquanto uma potência real do Absoluto. Desse modo, pretende-se apontar para o caráter inovador e peculiar da concepção schelliniana em contraste com a noção romântica de música absoluta, assim como situá-la dentro do panorama geral do sistema de identidades desenvolvido pelo autor.

The classical and scholastic view of things was of neutral substance to which qualities were attached as substantial adjuncts. Qualities could apparently not be conceived of otherwise than as entities: blueness, hardness, pliability, toughness, translucency, and so on. Noun substantives were the part of speech by which they could most properly be referred to. The use of adjectives did not imply that these qualities were not substantival entities, but emphasized their subordinateness to the thing itself, and were useful in giving (...) pliability, lightness, and elegance to speech. But qualities could not be conceived of otherwise than as something superadded to the neutral substance which carried them. (shrink)

Healey et al. introduce the special issue with a brief overview of work on communication in the Cognitive Sciences and some of the historical and conceptual influences that have marginalized the study of miscommunication. Drawing on more recent work in Cognitive Science and Conversation Analysis they argue that miscommunication is in fact a highly structured, ubiquitous phenomenon that is fundamental to human interaction.

Many biological systems experience a periodic environment. Floquet theory is a mathematical tool to deal with such time periodic systems. It is not often applied in biology, because linkage between the mathematics and the biology is not available. To create this linkage, we derive the Floquet theory for natural systems. We construct a framework, where the rotation of the Earth is causing the periodicity. Within this framework the angular momentum operator is introduced to describe the Earth’s rotation. The Fourier operators (...) and the Fourier states are defined to link the rotation to the biological system. Using these operators, the biological system can be transformed into a rotating frame in which the environment becomes static. In this rotating frame the Floquet solution can be derived. Two examples demonstrate how to apply this natural framework. (shrink)

This book explores some of Kit Fine's outstanding contributions to logic, philosophy of language, philosophy of mathematics, and metaphysics, among others. Contributing authors address in-depth issues about truthmaker semantics, counterfactual conditionals, grounding, vagueness, non-classical consequence relations, and arbitrary objects, offering critical reflections and novel research contributions. Each chapter is accompanied by an extensive commentary, in which Kit Fine offers detailed responses to the ideas and themes raised by the contributors. The book includes a brief autobiography and exhaustive list of his (...) publications to this date. This book is of interest to logicians of all stripes and to analytic philosophers more generally. (shrink)

Teaching and the research of theology and philosophy in Africa faces serious challenges: Contents and methods of study programs are often coined by European universalism. Tertiary institutions depend largely on foreign funding. This study analyzes the situation and suggests a closer collaboration.

In his recent book Waar geest is, is vrijheid [Where there is mind, there is freedom], Guus Labooy sets forth an original and intriguing argument, inspired by the work of John Duns Scotus, for substance dualism in the philosophy of mind. In this paper we argue that his argument, although worthy of serious attention, is under-supported. In section 2 we question the significance of the particular scotistic notion of freedom he uses in his argument, even though we agree with his (...) premise that humans do possess freedom in the libertarian sense. In section 3 we argue that Labooy fails to make his key contention that significant freedom requires an irreducible immaterial soul sufficiently plausible. The key problem is that he does not consider the work of physicalists who also believe in libertarian freedom. In addition, it is not self-evident that an immaterial soul, as opposed to a physical body, can possess significant freedom. This requires argument. In section 4 we comment on Labooy’s specific conception of dualism and advise him to change it into a conception in which the soul — and not the composition of soul and body — is the human person, for the latter conception has absurd consequences. (shrink)

Private politics (Baron 2003), i.e. attempts by various groups in society to influence corporate behavior without recourse to the state regulation or the law, has been an increasingly significant theme over the past few decades, and is likely to remain prominent in the years ahead. Yet, the occasional success of such attempts remains difficult to understand, because from the firm’s perspective, such groups lack a well-developed basis for negotiation and bargaining. Following this line of reasoning, we discuss how such groups (...) try to influence firms, and whether how they do so today is any different from earlier periods in time. (shrink)

Kit Fine’s contribution to logic is vast and diverse; the chapters in this book deal with a significant part of it. In this introductory chapter, we clarify and contextualize the main themes of Fine’s work that are centre stage in this book, after which we give a summary of each chapter.

A new scheme is proposed in order to deduce an equation of motion for a spinless charged point particle leading to an equivalent Landau–Lifshitz equation of motion. Consequently Larmor’s formula must be substituted by a new expression for the large distance radiation rate of energy. A constraint appears on the applicability of the Maxwell electromagnetic tensor. The particular case of a sudden force is analyzed in order to show the physical results predicted by the new model. A geometrical rearrangement of (...) the energy explains the balance. (shrink)

Se examina si las políticas de la diferencia son compatibles con las políticas de redistribución que caracterizan el Estado de Bienestar. Se muestra cómo Brian Barry construye una versión caricaturizada del multiculturalismo, y se indaga si la dicotomía entre liberalismo y multiculturalismo admite a..