Há muitos pontos de concordância entre Frege e os neokantianos. Isso vale especialmente para os representantes do neokantismo da teoria do valor ou do Sudoeste alemão na tradição de Hermann Lotze. Não discutiremos aqui todos os aspectos dessa proximidade; de acordo com o tema que propomos, ficaremos restritos à filosofia da matemática. A primeira parte do artigo tratará da relação entre aritmética e geometria, mostrando surpreendentes semelhanças entre Frege e o neokantiano Otto Liebmann. A segunda parte discutirá as diferentes recepções (...) do logicismo de Frege por Jonas Cohn, Paul Natorp, Heinrich Rickert, Ernst Cassirer e Bruno Bauch. (shrink)

O objetivo principal deste trabalho é apresentar a distinção entre ciência e cientificismo e, com base no trabalho de van Fraassen, intitulado A imagem científica (2006), discutir sobre as circunstâncias em que o cientificismo poderia ser repudiado. O cientificismo é uma corrente de pensamento que somente considera válido um conhecimento se ele for científico. Segundo essa corrente, os procedimentos da ciência natural seriam mais especiais, uma vez que, dentre outros motivos, eles são capazes de descrever regularidades e possibilitar predições. Dessa (...) forma, o cientificismo defende que os procedimentos não científicos não possuem valor algum, pois não seriam capazes de descrever regularidades e realizar predições como fazem os procedimentos da ciência natural. Trataremos de maneira crítica essa concepção, apresentando o argumento de van Fraassen de que a descrição de uma regularidade também pode ser construída por explicações não científicas. Em sua opinião, o poder explicativo de uma teoria vai além de sua importância empírica, ele é radicalmente dependente do contexto. Isso significa que as regularidades descritas por uma crença científica são também dependentes de explicações não científicas, como as explicações da psicologia, da história, da filosofia, da sociologia, etc. Assim, a forte predição que encontramos na ciência natural não é realizada somente com base na adequação empírica e científica, mas com base em um sistema de explicações não científicas. Isso torna incorreta a classificação do conhecimento científico como o mais verdadeiro ou especial por ser capaz de descrever regularidades e realizar a predições. Pretende-se, com isso, refletir se o conhecimento pode ser construído por outras áreas não científicas, sem que o conhecimento seja com isso prejudicado. Uma reflexão necessária que servirá para apresentar um dos problemas que tornam o cientificismo indesejável. (shrink)

In the literature, Weak Kleene logics are usually taken as three-valued logics. However, Suszko has challenged the main idea of many-valued logic claiming that every logic can be presented in a two-valued fashion. In this paper, we provide two-valued semantics for the Weak Kleene logics and for a number of four-valued subsystems of them. We do the same for the so-called Logics of Nonsense, which are extensions of the Weak Kleene logics with unary operators that allow looking at them as (...) Logics of Formal Inconsistency and Logics of Formal Underterminedness. Our aim with this work, rather than arguing for Suszko’s thesis, is to show that two-valued presentations of these peculiar logics enlighten the non-standard behavior of their logical connectives. More specifically, the two-valued presentations of paraconsistent logics illustrate and clarify the disjunctive flavor of the conjunction, and dually, the two-valued presentations of paracomplete subsystems of Weak Kleene logics reveal the conjunctive flavor of the disjunction. (shrink)

In this paper I evaluate some recent virtue-ethical accounts of right action [Hursthouse 1999; Slote 2001; Swanton 2001]. I argue that all are vulnerable to what I call the insularity objection : evaluating action requires attention to worldly consequences external to the agent, whereas virtue ethics is primarily concerned with evaluating an agent's inner states. More specifically, I argue that insofar as these accounts are successful in meeting the insularity objection they invite the circularity objection : they end up relying (...) upon putatively virtue-ethical considerations that themselves depend on unexplained judgments of rightness. Such accounts thus face a dilemma that is characteristic of virtue-ethical accounts of right action. They avoid the insularity objection only at the cost of inviting the circularity objection: they become intuitively plausible roughly to the extent that they lose their distinctively virtue-ethical character. (shrink)

Im "Bruno" bemüht sich Schelling um eine allgemeinverständliche Erläuterung der Grundgedanken seiner Identitätsphilosophie und stellt sie daher nach dem Vorbild eines platonischen Dialogs dar. Das Beispiel der Verschmelzung von Grundgedanken einer monistischen Konzeption im Sinne Spinozas mit der Ideenlehre Platons in ihrer neuplatonischen Ausprägung, das hierbei im Hintergrund steht, fand Schelling in den Schriften des Renaissancephilosophen Giordano Bruno, der dem Dialog auch den Namen gab. Schellings Ziel liegt darin, die alten Theorien über die Struktur der Materie und die (...) Bildung des Kosmos neu zu etablieren, um so die epistemologische Sackgasse der modernen, mechanistischen Wissenschaft zu überwinden. Der Dialog "Bruno" (1802) erschien ein Jahr nach der Veröffentlichung von Schellings "Darstellung meines Systems der Philosophie" (PhB 524b), die eine neue Phase in seiner denkerischen Entwicklung eröffnete, die Epoche des sogenannten Identitätssystems (1801–1809). Mit ihr sollte die Dichotomie von Natur- und Transzendentalphilosophie und deren Prinzipien (Produktivität der Natur einerseits, Spontaneität des Ich andererseits), wie sie Schelling (1775–1854) in seinen Schriften der vorhergehenden Jahre entwickelt hatte, aufgehoben werden und beide in einem höchsten Prinzip ihre Einheit finden. Dieses wird 1801 bestimmt als "absolute Vernunft", die weder subjektiv noch objektiv zu denken ist, sondern als bestimmungslose "absolute Indifferenz" das identische Wesen alles Seienden darstellt. (shrink)

RESUMOO presente artigo tem como objetivo analisar os meandros da composição e suas intertextualidades na polêmica do samba entre Noel Rosa e Wilson Batista, observando o dialogismo na interação verbal e musical entre os autores e os diversos textos da década de 1930. Ao apurar os ouvidos sobre a "polêmica do samba" observa-se que as composições revelam tensões inexoráveis entre um mundo festivo do "malandro" e os limites da realidade da época. Desse modo, com suporte em estudos que tratam deste (...) tema, busca-se trazer à tona um insight sobre este "duelo" musical que está, certamente, muito mais disseminado na sociedade que restrito a questões puramente estéticas.ABSTRACTThe purpose of this paper is to analyze the meanders of composition and their intertextuality in the samba controversy between Noel Rosa and Wilson Batista. We observe dialogism in the verbal and musical interaction between the samba writers and several texts of the 1930s. When ears are in tune with the "samba controversy," one observes that the compositions reveal inexorable tensions between the festive world of the "malandro" and the limits of the reality of the time. Accordingly, based on studies that address this theme, we aim to present an insight into this musical "duel," which is not restricted to purely aesthetics issues, but certainly disseminated in society. (shrink)

Religion -- Philosophy. ; Bible -- Islamic interpretations. ; Knowledge, Theory of (Religion).

صدر عن المركز العربي للأبحاث ودراسة السياسات كتاب الكشف والبيان عن أوصاف خصال شرار أهل الزمان الذي ألّفه محمد الحافظ بن حسين الصيداوي النجار وحقّقه مهند مبيضين. ويُعدّ هذا الكتاب من أدب المواعظ والأخلاق والتاريخ، وقد جمع فيه صاحبه ثقافة أدبية ودينية واسعة مكّنته من صوغ النص بلغة محكمة منضبطة، وبطريقة منظمة. يأخذنا المؤلف في كتابه إلى دمشق خلال النصف الأول من القرن الثامن عشر، ويصلنا بها حتى عام 1172هـ (1758م). ويُعدّ كلٌّ من الناس والمدينة مدارَ التأليف في هذا الكتاب (...) الذي يبحث فيه مؤلفه عن المجتمع الأمثل والزمان الخالي من الفساد. لكنّ البحث عن شكل أفضل للمجتمع ليس دافع التأليف الوحيد بالنسبة إلى المؤلف؛ فدمشق تستحق زمانًا أفضل مما كانت عليه في عصره الذي جعل الناس سبب سوئه، وهي عنده الظرف والناس هم المظروف، فإنْ صلح المظروف صلح زمان المدينة؛ لذلك نجده يذكّر بدمشق وفضلها وفضائلها. (shrink)

The aim of this article is to discuss the extent to which certain substructural logics are related through the phenomenon of duality. Roughly speaking, metainferences are inferences between collect...

This article is concerned with an exploration of a family of systems—called immune logics—that arise from certain dualizations of the well-known family of infectious logics. The distinctive feature of the semantic of infectious logics is the presence of a certain “infectious” semantic value, by which two different though equivalent things are meant. On the one hand, it is meant that these values are zero elements for all the operations in the underlying algebraic structure. On the other hand, it is meant (...) that these values behave in a value-in-value-out fashion for all the operations in the underlying algebraic structure. Thus, in a rather informal manner, we will refer to immune logics as those systems whose underlying semantics count with a certain “immune” semantic value behaving in a way that is somewhat dual to that of the infectious values. In a more formal manner, carrying out this dualization will prove to be not as straightforward as one could imagine, since the two characterizations of infectiousness discussed above lead to two different outcomes when one tries to conduct them. We explore these alternatives and provide technical results regarding them, and the various logical systems defined using such semantics. (shrink)

The aim of this article is to study the notion of derivability and its semantic counterpart in the context of non-transitive and non-reflexive substructural logics. For this purpose we focus on the study cases of the logics _S__T_ and _T__S_. In this respect, we show that this notion doesn’t coincide, in general, with a nowadays broadly used semantic approach towards metainferential validity: the notion of local validity. Following this, and building on some previous work by Humberstone, we prove that in (...) these systems derivability can be characterized in terms of a notion we call absolute global validity. However, arriving at these results doesn’t lead us to disregard local validity. First, because we discuss the conditions under which local, and also global validity, can be expected to coincide with derivability. Secondly, because we show how taking into account certain families of valuations can be useful to describe derivability for different calculi used to present _S__T_ and _T__S_. (shrink)

O artigo discute a potencialidade e os modos de uso da prosopografia em pesquisas sobre intelectuais na história da educação. Apresenta, em percurso bibliográfico, as principais definições, conceitos, operações metodológicas e fontes que a constituem. Sustenta que, no campo da história da educação, a metodologia prosopográfica oferece contribuições para o estudo dos intelectuais, sobretudo em investigações sobre os manifestos e seus signatários, cujos liames societários podem reafirmar ou subverter a lógica das posições individuais; os coletivos docentes, suas trajetórias de formação (...) e movimentação institucional e regional; as histórias institucionais, notadamente quanto à destinação social e política de egressos e à circulação de quadros técnicos e acadêmicos; as associações da sociedade civil, tais como sindicatos e entidades categoriais, cujos quadros atuaram na esfera educacional. Conclui-se que a utilização da prosopografia permite ao historiador extrapolar a usual abordagem individual de autores e ideias em educação, a fim de integrar os intelectuais em coletivos, tais como grupos profissionais, redes de sociabilidade e comunidades disciplinares, nos quais as propriedades relacionais e os jogos de interesse podem revelar tantos significados quanto os discursos, material da maioria das pesquisas em torno do tema. Palavras-chave: Prosopografia. Intelectuais. Pesquisa histórica. (shrink)

Our main goal is to investigate whether the infinitary rules for the quantifiers endorsed by Elia Zardini in a recent paper are plausible. First, we will argue that they are problematic in several ways, especially due to their infinitary features. Secondly, we will show that even if these worries are somehow dealt with, there is another serious issue with them. They produce a truth-theoretic paradox that does not involve the structural rules of contraction.

In recent years, some theorists have argued that the clogics are not only defined by their inferences, but also by their metainferences. In this sense, logics that coincide in their inferences, but not in their metainferences were considered to be different. In this vein, some metainferential logics have been developed, as logics with metainferences of any level, built as hierarchies over known logics, such as \, and \. What is distinctive of these metainferential logics is that they are mixed, i.e. (...) the standard for the premises and the conclusion is not necessarily the same. However, so far, all of these systems have been presented following a semantical standpoint, in terms of valuations based on the Strong Kleene truth-tables. In this article, we provide sound and complete sequent-calculi for the valid inferences and the invalid inferences of the logics \ and \, and introduce an algorithm that allows obtaining sound and complete sequent-calculi for the global validities and the global invalidities of any metainferential logic of any level. (shrink)

In occasione del bimillenario della morte del poeta latino Ovidio, l’articolo analizza l’influenza del poema delle Metamorfosi come fonte primaria di Giordano Bruno. L’esposizione della dottrina pitagorica, esposta nel libro XV del poema, si adatta perfettamente all’ontologia del Nolano e alla sua fede nella metempsicosi. In particolare il mito di Diana e Atteone viene adottato dal filosofo, nel De gl’Heroici furori, come ideale rappresentazione della propria esperienza conoscitiva. La tormentosa vicenda del cacciatore Atteone, tramutato in cervo per aver sorpreso (...) la Diana nuda, simboleggia in Bruno il passaggio dall’amore profano a quello divino. -/- On the occasion of the two thousandth anniversary of the death of the Latin poet Ovid, the article analyzes the influence of the poem of the Metamorphoses as a primary source of Giordano Bruno. The exposition of the Pythagorean doctrine, contained in the XV book of the poem, fits perfectly with the ontology of the Nolan and his faith in metempsychosis. In particular, the myth of Diana and Actaeon is adopted by the philosopher, in De gl'Heroici furori, as an ideal representation of his own cognitive experience. The tormenting story of the hunter Atteone, turned into a deer for having surprised the “naked Diana”, symbolizes in Bruno the passage from the profane love to the divine one. (shrink)

In this article, our aim is to take a step towards a full understanding of the notion of paraconsistency in the context of metainferential logics. Following the work initiated by Barrio et al. [2018], we will consider a metainferential logic to be paraconsistent whenever the metainferential version of Explosion is invalid. However, our contribution consists in modifying the definition of meta-Explosion by extending the standard framework and introducing a negation for inferences and metainferences. From this new perspective, Tarskian paraconsistent logics (...) such as LP will not turn out to be metainferentially paraconsistent, in contrast to, for instance, non-transitive logics like ST. Finally, we will end up by defining a logic which is metainferentially paraconsistent at every level, and discussing whether this logic is uniform through translations. (shrink)

The purpose of the review is to provide a descriptive analysis of Gottfried Gabriel's book, focusing on the main doctrines of Kant.

O presente artigo pretende discutir e refletir sobre as contribuições da chamada Teoria Crítica da Sociedade para o campo da educação em tempos de crescente desenvolvimento tecnológico. Para tanto, voltamos o olhar para as obras de três autores expoentes da Teoria Crítica: Walter Benjamin, Theodor W. Adorno e Herbert Marcuse, destacando as reflexões e análises desses autores e utilizando-as como subsídio no campo educativo. A educação autorreflexiva e autocrítica é pensada em seu potencial para a superação das condições de dominação (...) que permanecem em nossa sociedade, cada vez mais tecnificada e pretensamente democrática. Desse modo, pensar a práxis educativa se afigura como algo urgente e necessário para que se rompa com certas condições que mantêm nosso potencial à barbárie. (shrink)

The use of forward models is well established in cognitive and computational neuroscience. We compare and contrast two recent, but interestingly divergent, accounts of the place of forward models in the human cognitive architecture. On the Auxiliary Forward Model account, forward models are special-purpose prediction mechanisms implemented by additional circuitry distinct from core mechanisms of perception and action. On the Integral Forward Model account, forward models lie at the heart of all forms of perception and action. We compare these neighbouring (...) but importantly different visions and consider their implications for the cognitive sciences. We end by asking what kinds of empirical research might offer evidence favouring one or the other of these approaches. (shrink)

Infectious logics are systems that have a truth-value that is assigned to a compound formula whenever it is assigned to one of its components. This paper studies four-valued infectious logics as the basis of transparent theories of truth. This take is motivated as a way to treat different pathological sentences differently, namely, by allowing some of them to be truth-value gluts and some others to be truth-value gaps and as a way to treat the semantic pathology suffered by at least (...) some of these sentences as infectious. This leads us to consider four distinct four-valued logics: one where truth-value gaps are infectious, but gluts are not; one where truth-value gluts are infectious, but gaps are not; and two logics where both gluts and gaps are infectious, in some sense. Additionally, we focus on the proof theory of these systems, by offering a discussion of two related topics. On the one hand, we prove some limitations regarding the possibility of providing standard Gentzen sequent calculi for these systems, by dualizing and extending some recent results for infectious logics. On the other hand, we provide sound and complete four-sided sequent calculi, arguing that the most important technical and philosophical features taken into account to usually prefer standard calculi are, indeed, enjoyed by the four-sided systems. (shrink)