O objetivo deste breve artigo é o estudo da confiabilidade alcançada pela ciência (natural) com o exame da contribuição para este fenômeno encontrada no trabalho de Filósofo da Ciência Thomas Kuhn (1922-1996). Busca-se compreender a contribuição, a partir da construção conceitual proposta por Kuhn em “A Estrutura das Revoluções Científicas”, à noção de que a ciência se movimenta a partir de paradigmas e que o sentido de (in) evolução, nas ciências naturais, sempre possui relevância histórica por se tratar de uma (...) experiência agregada, o que colocou a ciência em um patamar diferenciado dos demais conhecimentos humanos, gerando maior confiabilidade e certeza, onde se supõe que, mesmo quando diagnósticos ou assertivas ditas científicas se provem equivocados fatidicamente, são sempre proveitosos da perspectiva histórica. Há aqui uma isenção (absolvição) de qualquer possibilidade de falácia ou erro e uma enorme contribuição para a inequívoca confiabilidade popular à ciência. Tudo parece ser compreendido a partir da noção de “experiência”. (shrink)

Este trabalho tem como objetivo examinar a obra As Palavras e as Coisas, do filósofo francês Michel Foucault. Buscaremos destacar esta nova fase de seus estudos que se concentram em descrever uma arqueologia do saber, que repousa sobre uma pesada crítica ao modo de se pensar da modernidade. A centralidade do homem é uma destas características modernas e ele discorre sobre três áreas relativas ao homem em especial: o trabalho, a linguagem e a vida. As atenções do século XIX se (...) voltam ao estudo de novos objetos, dando origem a novos saberes e novas ciências. Em mais uma de suas genealogias, Foucault Analisa as camadas dos conhecimentos que foram construídos desde a Renascença, passando pela era Clássica e findando seu estudo na Modernidade. (shrink)

A graph-theoretic account of logics is explored based on the general notion of m-graph (that is, a graph where each edge can have a finite sequence of nodes as source). Signatures, interpretation structures and deduction systems are seen as m-graphs. After defining a category freely generated by a m-graph, formulas and expressions in general can be seen as morphisms. Moreover, derivations involving rule instantiation are also morphisms. Soundness and completeness theorems are proved. As a consequence of the generality of the (...) approach our results apply to very different logics encompassing, among others, substructural logics as well as logics with nondeterministic semantics, and subsume all logics endowed with an algebraic semantics. (shrink)

The main purpose of this study is to introduce, analyze and propose the concept of Piety in Rousseau as a part of the ethical fundament of Positive Leadership Theory, also as a continuum of the original fundamental element of the Social Pact and its implication on the legitimization of organizational dynamics in the private sector (corporate ethics) and the impact on institutional efficiency. Given the theoretical nature of this research, the classic dialectic method has shown itself adequate once in it (...) there is a search for identification of an object (theory), its contradictions, and conflicts involved in the analyses of the problem. For that purpose, a vast bibliographical, documental e internet site research was conducted examining many of the main works about the themes studied. After presenting and dialectically analyzing the foundation of the Rousseaunian Social Pact, in convergence with the responsibility principle structure, this paper concludes by suggesting that these theoretical models can constitute the ethical basis of the management proposition of Positive Leadership as organization dynamics. (shrink)

A graph-theoretic account of fibring of logics is developed, capitalizing on the interleaving characteristics of fibring at the linguistic, semantic and proof levels. Fibring of two signatures is seen as a multi-graph (m-graph) where the nodes and the m-edges include the sorts and the constructors of the signatures at hand. Fibring of two models is a multi-graph (m-graph) where the nodes and the m-edges are the values and the operations in the models, respectively. Fibring of two deductive systems is an (...) m-graph whose nodes are language expressions and the m-edges represent the inference rules of the two original systems. The sobriety of the approach is confirmed by proving that all the fibring notions are universal constructions. This graph-theoretic view is general enough to accommodate very different fibrings of propositional based logics encompassing logics with non-deterministic semantics, logics with an algebraic semantics, logics with partial semantics and substructural logics, among others. Soundness and weak completeness are proved to be preserved under very general conditions. Strong completeness is also shown to be preserved under tighter conditions. In this setting, the collapsing problem appearing in several combinations of logic systems can be avoided. (shrink)

This article argues that Amílcar Cabral adhered to some of the essential elements of the philosophical discourse of modernity. This commitment led Cabral to endorse an anti-essentialist, historicized conception of culture, and this in turn led him to conceive of cultural liberation in terms of cultural autonomy as opposed to the preservation of indigenous culture(s). Cabral’s attitude towards languages is employed as a case study in order to demonstrate how emphasis on Cabral’s commitment to the philosophical discourse of modernity can (...) help explain why he could denounce ‘colonialist culture’, while also defending the PAIGC’s (Partido Africano para a Independência da Guiné e Cabo Verde / African Party for the Independence of Guinea and Cape Verde) use of Portuguese as an official language. This essay argues that Cabral makes a significant distinction between foreign influences and foreign domination in the realm of culture. Cabral conceived of the anti-colonial struggle in the realm of culture as a struggle against the latter rather than the former. (shrink)

In a speech delivered to the First Solidarity Conference of the Peoples of Africa, Asia, and Latin America held in Havana in January 1966, Cabral posed the question: “does history begin only from the moment of the launching of the phenomenon of class, and consequently, of class struggle? Cabral raised this question because he is concerned with the fact that maintaining the thesis that the existence of classes is a necessary condition for the existence of dynamic social processes logically commits (...) one to excluding several peoples from the historical process, provided that one accepts that at least some societies were classless until they came into contact with European imperialists. The latter is an assumption that is shared by Cabral and his interlocutors. Of course, in order to understand what Cabral is asking here we have to understand what is meant by the word ‘history’ in this context. I think that if one takes into account the Marxist polemical context that Cabral is wading into with this speech, and his attempt to develop a version of historical materialism that would be suitable for conditions in Guinea-Bissau and Cape Verde, one would be justified in thinking that Cabral is referring to a process of social development (or even progress). In other words, the question at hand is not whether peoples without classes have a past, they obviously do. The question is whether they have lived in societies that were dynamic, and where such dynamism could lead to qualitative transformations in social relations such that one could describe those societies as having specific developmental trajectories. Cabral wants to argue that they did in fact live in societies that were dynamic, even if such societies did not contain classes. (shrink)

[Attached PDF is the Arabic translation, the hyperlink takes you to the original English version] In this paper I argue that the emphasis, which was placed by the PAIGC’s leadership, and specifically by Amílcar Cabral, on the importance of advancing women’s rights and women’s liberation should be understood as being a consequence of Cabral’s modernist philosophical orientation. Moreover, I argue that women played an essential part in the struggle for liberation from Portuguese colonialism. In the first section, I characterize Cabral’s (...) modernist philosophical orientation and the way it influenced his views on the necessity of women’s liberation. I emphasize the philosophical commitment to autonomy as a guiding normative principle. In the second section, I argue that women played a key role in pressuring the PAIGC to integrate them into its structure, i.e., they were active agents and not just passive subjects waiting for somebody to “liberate them.” In the third and concluding section, I describe the limits of the PAIGC’s commitment to women’s liberation, and I discuss why some members of the party’s leadership (e.g., Luis Cabral) disagreed with Amílcar Cabral regarding the importance of women’s liberation. This paper thus approaches the question of feminist anti-colonial imaginaries both from the perspective of the hopes which attended a partially feminist-inflected African liberation struggle, as well the betrayal of these hopes by men in leadership positions. Those leaders never took seriously the idea that the liberation of women was a necessary condition for the creation of a social environment which would allow for the full actualization of the capacities of men and women in Guinea-Bissau and Cape Verde. (shrink)

In this chapter I focus on listening as a potentially revolutionary pedagogical activity. I argue that listening should not be understood as an essentially passive state, and focus on pedagogical situations where the educator can be misled by prejudices regarding the abilities, or lack thereof, of the individuals that the educator is interacting with in a pedagogical context. While the claims which I argue for apply to pedagogues in formal classrooms, I will be mostly concerned with pedagogy in the context (...) of political and social movements. In the first section, I argue that there is a direct relationship between the manner in which dominant social groups , especially ruling classes in societies stratified along class lines, accumulate social power in a given society and the manner in which the conceptual tools that are available for the interpretation of social reality make it difficult for members of oppressed social groups to interpret social reality in a way that accords with their interests, either because the adequate conceptual tools are not part of the conceptual repertoire of their society, or because they do not have access to them due to their material conditions (grinding poverty, illiteracy, etc.). I argue that the revolutionary pedagogue must be aware of this structural problem. In the second section, I draw on the methods of participatory action research in an attempt to specify what the revolutionary pedagogue must be like as a listener in order to compensate for the existence of this deficiency in adequate conceptual tools for the analysis of social reality and the identification of objective social interests on the part of members of oppressed social groups. In other words, I specify the qualities that revolutionary pedagogues must possess as listeners in order to fulfill their task. In the third and concluding section, I argue that in order to compensate for the structural problem that I identify in the first section, pedagogues must be willing to identify with the members of the oppressed groups that they are attempting to teach (in a dialogical manner). They must be willing to commit what Amilcar Cabral called class suicide and its analogues in relation to other forms of oppression (Cabral 1979a, 126). (shrink)

In this paper the propositional logic LTop is introduced, as an extension of classical propositional logic by adding a paraconsistent negation. This logic has a very natural interpretation in terms of topological models. The logic LTop is nothing more than an alternative presentation of modal logic S4, but in the language of a paraconsistent logic. Moreover, LTop is a logic of formal inconsistency in which the consistency and inconsistency operators have a nice topological interpretation. This constitutes a new proof of (...) S4 as being "the logic of topological spaces", but now under the perspective of paraconsistency. (shrink)