For Aristotle, demonstrative knowledge is the result of what he calls ‘intellectual learning’, a process in which the knowledge of a conclusion depends on previous knowledge of the premises. Since demonstrations are ultimately based on indemonstrable principles (the knowledge of which is called ‘νοῦς’), Aristotle is often described as advancing a foundationalist doctrine. Without disputing the nomenclature, I shall attempt to show that Aristotle’s ‘foundationalism’ should not be taken as a rationalist theory of epistemic justification, as if the first principles (...) of science could be known as such independently of their explanatory connections to demonstrable propositions. I shall argue that knowing first principles as such involves knowing them as explanatory of other scientific propositions. I shall then explain in which way noetic and demonstrative knowledge are in a sense interdependent cognitive states – even though νοῦς remains distinct from (and, in Aristotle’s words, more ‘accurate’ than) demonstrative knowledge. (shrink)

In Posterior Analytics II 16-17, Aristotle seems to claim that there cannot be more than one explanans of the same scientific explanandum. However, this seems to be true only for “primary-universal” demonstrations, in which the major term belongs to the minor “in itself” and the middle term is coextensive with the extremes. If so, several explananda we would like to admit as truly scientific would be out of the scope of an Aristotelian science. The secondary literature has identified a second (...) problem in II 16-17: the middle term of a demonstration is sometimes taken as the definition of the minor term (the subject), other times as the definition (or the causal part of the definition) of the major (the demonstrable attribute). I shall argue that Aristotle’s solution to the first problem involves showing that certain problematic attributes, which appear to admit more than one explanation, actually fall into the privileged scenario of primary-universal demonstrations. In addition, his solution suggests a conciliatory way-out to our second problem (or so I shall argue): the existence of an attribute as a definable unity depends on its subject having the essence it has, which suggests that both the essence of subjects and the essence of demonstrable attributes can play explanatory roles in demonstrations. (shrink)

Aristotle's theory of demonstration, developed in the Posterior Analytics, is not restricted to determining the formal requirements for formulating probative arguments that establish properly the results of scientific investigation. To the probative aspect of demonstration it shall be added its primarily explanatory character, orientated by theses of strong ontological and metaphysical content and involving notions like substance, essence and causation. We shall analyze the relation between those two ranges of Aristotle's philosophy of science and investigate how the formal features of (...) demonstration maintain an affinity with the metaphysical background to which scientific activity is conditioned. (shrink)

In this paper, I explore two possible readings of Republic IV, 439c2-d8, and of Plato’s claim that the just soul is governed by its rational element. My aim is to argue against a “desiderative” interpretation of the passage, according to which the motivational strength of rational desires depends on a set of desires given in advance and produced independently of reason. As an alternative, I advance a “cognitivist” reading according to which the rational desires of the just soul have as (...) its ultimate source a knowledge about the nature of goodness and happiness, with its own motivational force. Finally, I argue for a reinterpretation of 439a4-b1, a passage that, at first sight, seems to contradict my analysis of 439c2-d8. (shrink)

ABSTRACT This is a review of David Bronstein's book "Aristotle on Knowledge and Learning: The Posterior Analytics".

according to aristotle's posterior analytics, scientific expertise is composed of two different cognitive dispositions. Some propositions in the domain can be scientifically explained, which means that they are known by "demonstration", a deductive argument in which the premises are explanatory of the conclusion. Thus, the kind of cognition that apprehends those propositions is called "demonstrative knowledge".1 However, not all propositions in a scientific domain are demonstrable. Demonstrations are ultimately based on indemonstrable principles, whose knowledge is called "comprehension".2 If the knowledge (...) of all scientific propositions were... (shrink)

This is an Editorial Note for the special volume of the journal Manuscrito (42: 4) devoted to Aristotle's theory of demonstration and its logical and metaphysical entanglements, which has been organized by me and Breno Zuppolini (as Guest Editors), with papers authored by Benjamin Morison, Owen Goldin, David Bronstein, Michail Peramatzis, Andrea Falcon, Laura Castelli, Paolo Fait, Joseph Karbowski, Adam Crager, Klaus Corcilius, Robert J. Hankinson, Raphael Zillig and Pieter Sjoerd Hasper.

This article offers a reconstruction of an argument against infinite regress formulated by Aristotle in Posterior Analytics I 22. I argue against the traditional interpretation of the chapter, according to which singular terms and summa genera, in virtue of having restrict logical roles, provide limits for predicative chains, preventing them from proceeding ad infinitum. As I intend to show, this traditional reading is at odds with some important aspects of Aristotle’s theory of demonstration. More importantly, it fails to explain how (...) his proof is connected to a defence of the existence of ultimate explanations, a connection that must be the case if I 19-22 is advancing a foundationalist way-out to a sceptical challenge raised in I 3. (shrink)

Most interpretations of Aristotle’s Posterior Analytics believe that the term ‘ameson’ is used to describe the principles or foundations of a given system of justification or explanation as epistemically prior to or more fundamental than the other propositions in the system. Epistemic readings (as I shall call them) arguably constitute a majority in the secondary literature. This predominant view has been challenged by Robin Smith (1986) and Michael Ferejohn (1994; 2013), who propose interpretations that should be classified as non-epistemic according (...) to the definition above. My aim in this article is purely negative. I intend to show that these non-epistemic interpretations are liable to serious objections and are in conflict with some important features of Aristotle’s theory of demonstration. (shrink)

At the beginning of the first book of Posterior Analytics, Aristotle‟s feature of demonstrative knowledge involves a certain concept of “necessity”. The traditional interpretation tends to associate this concept with modal necessity, which is found in the Prior Analytics and De interpretatione. The present article aims to show in which way the sixth chapter of book A of Posterior Analytics presupposes a set of essentialist theses that claims to base the necessity of scientific knowledge on predicative relations of essential character. (...) To acknowledge this essentialist background and simultaneously support a modal interpretation of scientific necessity urges us to attribute serious drawbacks to Aristotle‟s theory of demonstration, forcing us to reassess this interpretative tendency. (shrink)

In the Posterior Analytics, Aristotle imposes some requirements on scientific propositions: (i) they must be susceptible of syllogistic articulation, (ii) they must have universal terms as subjects of predication and (iii) their subjects must be primary, i.e. they cannot “be said of a distinct underlying subject”. However, it is problematic to meet those three requirements together. If associated with the theory of predication in Categories, the requirement (iii) shall prescribe names or descriptions of individuals within the category of substance as (...) subjects of predication, which are primary insofar as they cannot play the logical role of predicate. Nevertheless, if the requirement (i) is satisfied, then the terms of scientific proposition would be able to perform the function of subject as well as of predicate since the rules of conversion and syllogistic moods presuppose the interchangeability among terms of predication. The requirement (ii), by its turn, withdraws all particular subjects from scientific propositions and a fortiori individual substances. We offer as a solution for the aforementioned dilemma the association of theses from the Posterior Analytics, not with the treatise Categories, but with the new ontology of predication emerged in the Metaphysics, which, by introducing the hylomorphic analysis of compound substances, admits primary and notwithstanding universal subjects of predication: the specific forms. (shrink)

No tratado intitulado Segundos Analíticos, Aristóteles desenvolve uma teoria da demonstração científica e da ciência demonstrativa. Ali, o conhecimento científico é descrito pelo filósofo como envolvendo uma certa "necessidade". Alguns intérpretes associam esta noção de necessidade à necessidade modal, pertinente à silogística modal de Aristóteles. Esta interpretação, todavia, tornaria o modelo de ciência proposto nos Analíticos incompatível com os explananda das ciências da natureza, cuja cientificidade o próprio Aristóteles reiteradamente defendeu. A fim de evitar este inconveniente, abordamos e reconstruímos a (...) mencionada interpretação, reconhecemos suas falhas e propomos, seguindo outra tendência da literatura secundária, uma leitura alternativa da noção de necessidade como adequação explanatória, a qual garantiria a cientificidade dos fenômenos naturais. (shrink)

My aim in this paper is to engage with C. Thi Nguyen’s characterization of the echo chamber and to propose two things. First, I argue that a proper reading of his concept of echo chamber should make use of the notion of ignorance in the form of a structural epistemic insensitivity. My main contention is that ignorance as a substantive structural practice accounts for the epistemically deleterious effects of echo chambers. Second, I propose that from the talk of ignorance we (...) should be able to see echo chambers in terms of their more harmful impacts in our daily lives. To do that, I argue that we should think of echo chambers as tools to promote hermeneutical domination. If my representation of Nguyen’s concept is accurate, I believe we can see some important theoretical consequences stemming from the way Nguyen understands it. (shrink)

Neste verbete, ofereço uma apresentação breve e introdutória do conceito de injustiça epistêmica, de suas subpartes e da epistemologia das virtudes subjacente à proposta de Fricker, tanto em termos de caracterização quanto em termos de solução dos problemas que seu livro nos ajuda a diagnosticar. Ao final, indicarei algumas direções de crítica e aprofundamento dessa proposta nos trabalhos de outros autores e autoras que se ocuparam da compreensão desse profícuo debate.

In this paper, I discuss some of the recent developments in the political turn of Social Epistemology, focusing on the notions of epistemic injustice and epistemic oppression. In the first part of the work, I introduce Kristie Dotson’s characterization of the epistemic injustices presented by Miranda Fricker, through the understanding of systematic ways of violating epistemic agency in terms of oppressions. In the second part, I discuss Dotson’s critique of Fricker on the grounds that there is an important kind of (...) epistemic injustice that is not dealt with in Fricker’s proposal, and which could help us to perceive a particular, pervasive kind of violation of the epistemic agency. (shrink)

[From SEP]: Contemporary virtue epistemology (hereafter ‘VE’) is a diverse collection of approaches to epistemology. At least two central tendencies are discernible among the approaches. First, they view epistemology as a normative discipline. Second, they view intellectual agents and communities as the primary focus of epistemic evaluation, with a focus on the intellectual virtues and vices embodied in and expressed by these agents and communities. This entry introduces many of the most important results of the contemporary VE research program. These (...) include novel attempts to resolve longstanding disputes, solve perennial problems, grapple with novel challenges, and expand epistemology’s horizons. In the process, it reveals the diversity within VE. Beyond sharing the two unifying commitments mentioned above, its practitioners diverge over the nature of intellectual virtues, which questions to ask, and which methods to use. It will be helpful to note some terminology before proceeding. First, we use ‘cognitive’, ‘epistemic’ and ‘intellectual’ synonymously. Second, we often use ‘normative’ broadly to include not only norms and rules, but also duties and values. Finally, ‘practitioners’ names contemporary virtue epistemologists. (shrink)

In this paper, Charles Mills discusses what he calls “white ignorance”, developing one of the main themes of his 1997 book, The Racial Contract. His discussion is concerned with the idea of a cognitive disadvantage based on membership in a social group, which is not strange to the radical philosophical tradition, and that has been explored with more vigor in the recent Social Epistemology, in debates about epistemic injustices, silencing, willful ignorance, cognitive biases, epistemological standpoints, etc. Mills argues for an (...) “Epistemology of the white ignorance”, a racially and socially situated epistemology, which contraposes itself, in a great extent, to the individualistic tendencies of the traditional epistemological work, while conserving the interests in objectivity and truth of this work. (shrink)

In this paper, I argue that Plotinus does not limit the sphere of free human agency simply to intellectual contemplation, but rather extends it all the way to human praxis. Plotinus’s goal in the first six chapters of Ennead 6.8 is, accordingly, to demarcate the space of freedom within human practical actions. He ultimately concludes that our external actions are free whenever they actualize, in unhindered fashion, the moral principles derived from intellectual contemplation. This raises the question of how the (...) freedom of practical actions might relate to the freedom of intellectual contemplation. After considering two previously offered models—a model of double activity, and an Aristotelian model of practical syllogism—I offer a third alternative, namely a model of moral attunement, according to which our rational desires assume a kind of ‘care of the soul’ through active supervision. Practical life is thus imbued with freedom to the extent that the soul supervises its actions to conform to its will and choice of the good. (shrink)

Departing from Anderson’s (2016) suggestion that there are three communities in Peirce’s thought corresponding to his three normative sciences of logic, ethics, and esthetics, I argue that these communities partake in a relationship of dependence similar to that found among the normative sciences. In this way, just as logic relies on ethics which relies on esthetics, so too would a logical community of inquirers rely on an ethical community of love, which would rely on an esthetic community of artists. A (...) community could conduct inquiry together only if it pursued the same goal; and it could pursue the same goal only if it first imaginatively construed it. Any logical or ethical community requires a shared imaginative repertoire of ideal ends. (shrink)

A parcialidade epistêmica na amizade (PE) é a tese segundo a qual ser um bom amigo de alguém envolve tratar essa pessoa de forma diferente, em um sentido epistêmico. Sarah Stroud (2006) e Simon Keller (2004) defenderam essa tese e argumentaram que ela está em tensão direta com demandas de racionalidade epistêmica. A posição deles é que quando nossos amigos estão envolvidos em algum assunto ao qual temos que dar nossa avaliação (sobre os fatos, suas ações ou seu caráter), tendemos (...) a dar à questão um tratamento epistêmico diferencial, não reservado a não-amigos. Neste artigo, quero tratar de duas possíveis formas de responder à PE. Primeiro, quero discutir a rejeição de Sandy Goldberg (2018, 2020) a essa tese e à tensão que ela supostamente cria com as exigências da racionalidade epistêmica. Em sua proposta, Goldberg defende o comportamento epistêmico diferencial que a PE pressupõe, mas também argumenta que tal comportamento não configura um tipo de PE, e que tampouco está em tensão com as exigências da racionalidade epistêmica. Irei sugerir que a posição de Goldberg não capta uma distinção importante entre nossas atitudes epistêmicas diante do testemunho de um amigo e diante de relatos de terceiros sobre um amigo. Particularmente, o que eu argumentarei é que o caminho que leva da valorização da amizade às razões epistêmicas em apoio aos resultados doxásticos diferenciais quando nossos amigos estão envolvidos é, na melhor das hipóteses, frágil, já que envolve o que eu vejo como um movimento não autorizado de nosso desejo de preservar uma amizade para uma reação doxástica diferencial quando alguém testemunha negativamente sobre nossos amigos. Em segundo lugar, defenderei também que não devemos aceitar a prescrição da PE tão rapidamente. Argumentarei que, ao avaliar injustamente as credenciais epistêmicas de nossos amigos – algo que parece estar acontecendo em alguns casos de parcialidade epistêmica, podemos estar contribuindo para degradar as condições de trocas epistêmicas justas em uma comunidade. Se esse for o caso, teremos uma razão pragmática para rejeitar a PE. Na primeira seção do artigo, apresentarei a tese da parcialidade epistêmica na amizade, focalizando principalmente na forma como Stroud a articula. Depois disso, na seção II, tratarei da rejeição da PE por Goldberg e apresentarei uma crítica à sua posição. Na terceira e última seção, defenderei o que vejo como uma preocupação importante se aceitarmos a PE e oferecerei uma razão pragmática para questioná-la. (shrink)

Epistemological disjunctivism is a philosophical theory that has received special attention in the recent years. Particularly because it has been seen by many as a way of renewing discussions that range from the nature of justification of our daily beliefs to the possibility of unveiling the structure of the problem of radical skepticism and of responding to it. Duncan Pritchard is one of the authors who have offered a particular view of disjunctivism and ways of conceiving of disjunctivist treatments to (...) such questions. His work has as its main source of inspiration the seminal work of John McDowell. In this paper, I present a way of understanding the problem ofradicalskepticism and the mannerin which epistemological disjunctivism aimsto offer solutionsto it. In orderto do that, I present McDowell’s general proposal and discuss in which way his account differs from Pritchard’s own disjunctivism. At the end, I try to show how Pritchard’s approach tries to respond to radical skepticism not only by appealing to a disjunctivist reading of our epistemic position, but also by offering a revision of our structure of reasons. (shrink)

This paper seeks to point the epistemic aspects of obstetric violence. In order to do so, we will introduce the concept of epistemic injustice, as developed by Miranda Fricker, and how it has been used by the social epistemology literature to think about health issues. Subsequently, we will examine reports of cases of obstetric violence as well as a case of forced sterilization, by reviewing the Final Report of the CPMI on the incidence of mass sterilization of women in Brazil, (...) as well as papers that describe cases of obstetric violence. Thus, we aim to point out that there is an epistemic aspect to such violations and that a change in the distribution of credibility may be relevant to confront obstetric violence. (shrink)

‘Injustiça epistêmica’ é o termo usado por Miranda Fricker para descrever um tipo de injustiça que ocorre quando excluímos a contribuição de uma ou mais pessoas à produção, disseminação e manutenção do conhecimento. Em seu livro de mesmo nome (2007), e em uma série de outros trabalhos, Fricker examina de que modo interações interpessoais e sistemas sociais estruturais podem ser responsáveis por influenciar nossa prática cotidiana, consciente ou não, de atribuir status epistêmico a membros de uma comunidade. Seu trabalho se (...) insere em um campo particular da epistemologia contemporânea, conhecido como Epistemologia Social. Um ramo do trabalho filosófico que tem como objetivo uma investigação sobre a dimensão social e sobre a moralidade das nossas práticas epistêmicas, do ponto de vista da sua influência na aquisição de conhecimento e justificação, e da formação racional de crenças. Fricker aporta neste campo com um tratamento do papel que a injustiça de tipo epistêmico desempenha nessas atividades. E ela o faz, particularmente, através do exame de duas formas primárias deste tipo de injustiça: a injustiça testemunhal e a injustiça hermenêutica. Sua proposta consiste, em larga medida, em mostrar que algumas das normas que governam as nossas práticas epistêmicas podem ser limitadas por estruturas de poder que se manifestam socialmente. De acordo com essa proposta, a concepção do sujeito conhecedor é essencialmente social, no sentido em que ela está sujeita a inúmeras considerações sociopolíticas. Uma dessas considerações está na possibilidade de pressões sociais advindas de relações de poder exercerem alguma influência nas normas epistêmicas de credibilidade que utilizamos para avaliar a autoridade racional de interlocutores em uma troca epistêmica cotidiana. Segundo Fricker, é possível que as normas que regulam a concessão de credibilidade a indivíduos ou grupos envolvidos nessas trocas reproduzam estruturas de poder constituídas socialmente. Ou seja, é possível que pessoas ou grupos que detêm algum tipo de vantagem ou poder social tendam a negar credibilidade a agentes epistêmicos que possuem autoridade racional de fato acerca de determinado assunto. Uma recusa em reconhecer tal autoridade por conta de preconceitos identitários é um dos modos de conceber o que Fricker chama de injustiça epistêmica. Neste artigo, pretendo apresentar alguns detalhes da proposta de Fricker, caracterizando mais cuidadosamente os dois tipos de injustiças que ela examina em seu trabalho principal e apresentando algumas das soluções que ela oferece como estratégias para dirimir as consequências supostamente perniciosas de práticas epistêmicas reguladas por preconceitos de identidade e pela exclusão de agentes de aspectos importantes de uma comunidade epistêmica. Em seguida, discutirei duas críticas mais pontuais às soluções que Fricker oferece, que surgem menos como objeções, no sentido mais forte do termo, e mais como contribuições adicionais a essas estratégias de remediação dos danos de uma prática epistêmica injusta. Particularmente, quero defender que as duas contribuições que apresentarei podem ser pensadas como frutos da mesma preocupação com o escopo estreito da proposta de Fricker, e podem ser pensadas também como oferecendo leituras complementares sobre que caminhos devemos seguir para buscar práticas e comunidades epistêmicas marcadas pela justiça e não pela injustiça. (shrink)

Em seu artigo “Confiança epistêmica e testemunho feminino”, Patrícia Ketzer se propõe a duas tarefas centrais. Em primeiro lugar, ela pretende caracterizar as noções interpessoais de testemunho e de confiança epistêmica defendidas por Benjamin McMyler (2011). A partir disso, então, ela sugere que a proposta de McMyler pode ser útil para a compreensão de casos malsucedidos de testemunho, em particular casos de testemunho de violência sexual. Me interessa, aqui, em grande medida, avaliar se a aproximação sugerida é capaz de esclarecer (...) a natureza epistemológica dos problemas que parecem estar associados às práticas de rejeitar total ou parcialmente testemunho de violência sexual e de gênero. (shrink)

The icon is the type of sign connected to efficient representational features, and its manipulation reveals more information about its object. The London Underground Diagram (LUD) is an iconic artifact and a well-known example of representational efficiency, having been copied by urban transportation systems worldwide. This paper investigates the efficiency of the LUD in the light of different conceptions of iconicity. We stress that a specialized representation is an icon of the formal structure of the problem for which it has (...) been specialized. By embedding such rules of action and behavior, the icon acts as a semiotic artifact distributing cognitive effort and participating in niche construction. (shrink)

This work has as its main goal to discuss two different epistemic proposals, both under the reliabilist handle. The first one, developed by Alvin Goldman, has as its central goal to offer an adequate characterization of the justificational element present in the standard account of knowledge. Goldman's proposal has the initial challenge of properly explaining Gettier's demand presented some years earlier, but also to correct some more central problems that affect his own causal theory of knowledge. However, the externalist proposal (...) within Goldman's reliabilism faced some serious attacks directed to its notion of justification. Three of these attacks became well known in the recent literature: the generality problem, the meta-incoherence problem and the new evil genius problem. Each one in its own way has established challenges to the his reliabilist account. The second reliabilist theory we will discuss consists in a reformulation of Goldman's account, defended mainly by Ernest Sosa in a series of very important works in contemporary epistemology. In these works, Sosa was able to insert the notion of intellectual virtues in the epistemological debate, bringing to the center of the externalist debate an idea of a responsible belief formation, and at the same time trying to give a proper answer to the more central challenges faced by original reliabilism. In the first part of the paper I present the first of these theories, and after that I offer a treatment of Sosa's reformulation of reliabilism and a defense of this proposal as a more adequate theory to deal with some basic demands of a proper theory of justification. (shrink)

In this paper I argue that, to conceive transcendence, Levinas retrieves the Platonic concept of “separation” and deploys it in three ways: metaphysically, semantically, and affectively. Levinas finds in the interaction between being and the Good beyond being of Republic VI 509b a certain “formal structure of transcendence”—one in which a term is conditioned by another while remaining absolutely separated from it. This formal structure is subsequently deployed metaphysically, in the relation between creator and creature; semantically, in the relation between (...) meaning and sense; and affectively, in the relation between the desiring self and its desired aim. (shrink)

In this paper, I present two ways of conceiving a genealogical explanation of the concept of knowledge. The first one is through the epistemic state of nature hypothesis developed by Edward Craig, according to which knowledge is understood as a concept evolved from the concept of a good informant. After considering Craig’s project, I draw a parallel between this approach and Miranda Fricker’s value-laden account of the same concept. Then, I present and discuss Fricker’s social take on Craig’s genealogy, in (...) which she suggests that the notions of a good informant and of knowledge are necessarily dependent on the establishment of a credibility norm, and that this norm should be viewed as inherently political. Lastly, I defend an illustration, through Kristie Dotson’s work, of how both genealogical approaches could explain and offer solutions to failings in the normativity of our epistemic systems. (shrink)

Comments to: SOSA, Ernest. Representations, judgments, and the swamping problem for reliabilism: why the problem applies to process reliabilism, but not to virtue reliabilism. Trans/Form/Ação: Unesp journal of philosophy, vol. 44, Special issue in honor of Ernest Sosa, p. 19-24, 2021.

Debates em epistemologia recente têm se pautado, em grande medida, pelo problema de caracterizar a natureza da justificação. De modo geral, a tarefa tem sido explorar o status epistêmico que faz com que uma crença verdadeira seja uma instância de conhecimento. Este debate traz consigo uma discussão mais ampla acerca do conteúdo da definição de conhecimento, ou seja, uma discussão cujo propósito é identificar o que compõe de forma necessária e suficiente esta noção epistêmica central. No entanto, paralelamente a este (...) trabalho tem surgido um tipo de preocupação que, em alguma medida, parece ser anterior à tarefa de discutir a natureza ou os conteúdos do conceito em questão. Esta preocupação diz respeito ao problema da atribuição de conhecimento. Casos do tipo-Gettier não só colocam em xeque a definição tradicional, expondo uma insuficiência nos conteúdos comumente associados a esta noção, mas o fazem mostrando que atribuições triviais de conhecimento estão sob risco, quando pautadas pelos conteúdos da noção tradicional. Como veremos, a intuição contida na revisão feita por Edmund Gettier se torna ainda mais relevante ao notarmos que o problema persiste mesmo em versões reformuladas da noção tradicional do conhecimento, como presente na proposta confiabilista, com a qual lidaremos neste trabalho.Oproblema, em linhas gerais, é o seguinte: como devemos entender a atribuição de conhecimento para sujeitos que, supostamente, preenchem todas as demandas para tal, mas que não parecem ter conhecimento em sentido estrito? Os casos de Gettier são paradigmáticos neste sentido. Veremos mais adiante que casos como estes nos apresentam sujeitos que estão cumprindo todas as demandas da análise tradicional do conhecimento, mas que de fato não chegam a possuí-lo. Alternativamente, o problema pode ainda ser invertido: como devemos entender a atribuição de conhecimento para sujeitos que não cumprem todas estas demandas, mas para os quais, intuitivamente, atribuímos conhecimento? Este problema, veremos, é central para a proposta confiabilista, posto que coloca em dúvida uma das formulações recentes da teoria, defendida por John Greco, e pretende mostrar que tal formulação não salva a teoria do problema da atribuição. Neste trabalho, discutirei o alcance deste problema para a epistemologia e em que sentido sua versão invertida afeta o confiabilismo do agente1 de John Greco. Na primeira parte do trabalho meu foco estará no problema geral e na possível contribuição que a noção de saliência causal, proposta no confiabilismo do agente, tem a oferecer como solução.Emseguida, apresentarei dois contraexemplos à centralidade da saliência causal advogada por Greco. Então, na terceira e última parte do trabalho discutirei uma reformulação que Greco faz de sua própria proposta para dar conta das demandas apresentadas por estes contraexemplos. Ao final, defenderei, seguindo Greco, que sua reformulação da noção de saliência causal para casos de conhecimento, em termos qualitativos e não quantitativos, pode nos servir mais adequadamente para entender esta relação de atribuição. (shrink)

This work aims to present and discuss recent developments in epistemology that seek for satisfactory formulations and responses to the problem of radical skepticism. Its main goal is to understand how the skeptical problem can be properly characterized, how it can be viewed as inserted in the traditional dispute in epistemology between externalism and internalism, and to which extent antiskeptical theories are situated within this dispute. After identifying their place in the dispute, another antiskeptical proposal is discussed, one that suggests (...) a conciliatory take on the internalist/externalist debate. The way Duncan Pritchard presents this conciliatory view, known as epistemological disjunctivism, intends to show that we can know the things that radical skepticism wants to preclude us to know. In order to do that, we just have to consider our structure of reasons as one that allows us to have factive reasons, reasons of externalist and internalist nature, that could put us in a privileged position to know the things we ordinarily believe. After the presentation and discussion of Pritchard's epistemological disjunctivism, and his general rejection of skepticism, it is suggested that its antiskeptical tools are also available to more traditional epistemic theories - but to access them, some epistemological assumptions need to be adjusted. In order to do that, an alternative take on the internalism/externalism dispute is offered, so it can allow for a different way of conceiving the conciliatory antiskeptical strategy, one that has epistemic reliabilism as its framework. The final propposal consists in an attempt to democratize the disjunctivist tool against radical skepticism. (shrink)

Com esta obra, esperamos contribuir com uma pequena imagem do profícuo desenvolvimento recente da Epistemologia Social, em especial em terras brasileiras. A despeito de uma série de resistências, motivadas por fatores diversos, a uma concepção mais aplicada da Epistemologia, uma que extrapole os limites da mera análise conceitual, a Epistemologia Social tem ocupado um espaço cada vez mais significativo na Filosofia. Sua capacidade de dialogar com outras áreas da Filosofia e, principalmente, para além da Filosofia, tem se mostrado crucial para (...) sua consolidação. No Brasil, esta não é a primeira obra a reunir contribuições de relevo para a área, mas é com certeza a obra que reúne de modo mais nítido as investidas mais arrojadas de Epistemologia Social sobre problemas candentes do nosso tempo, que vão desde a importância e os limites da conversação para resolver impasses na nossa dinâmica de produção e transmissão de conhecimento até como o preconceito arraigado e a violência moldam nossos modos de vida epistêmico em comunidade, a ponto muitas vezes de anulá-los e destruí-los. Fazemos votos de que esta obra encontre leitores e leitoras animadas com os novos rumos da Filosofia, e que ela possibilite uma ampliação e uma renovação cada vez maior da Epistemologia enquanto teoria, mas também enquanto ferramenta de intervenção prática na nossa realidade. (shrink)

This work has as its main purpose to discuss the use of the concept of virtue in contemporary theories of justification. From a general approximation that recent epistemology has established with traditional moral theories, we intend to evaluate the normative potential that the notion of intellectual virtue can offer to handle key epistemic demands, as the demand for an adequate characterization of the justificational element within the traditional definition of knowledge. Hence, we need to explore some of the theories that, (...) in contemporary philosophy, intended to characterize more properly the element that converts true beliefs into knowledge, based on the idea that it can be derived from the cognitive nature of the subject that forms beliefs. One of the main approaches in this regard was Ernest Sosa's virtue perspectivism. Sosa was responsible for inserting the concept of intellectual virtues in the most recent epistemological debate. His theory is also responsible for the popularization of an epistemic evaluation focused on the character of the doxastic agent. Two other prominent theories in this framework, and which were directly influenced by Sosa's seminal work, are Linda Zagzebski's pure virtue theory and John Greco's agent reliabilism. Both authors followed intuitions present in Sosa's proposal to construct, each in its own way, theories of epistemic justification that takes as evaluative measure the contribution of the subject to convert their beliefs into instances of knowledge. We'll discuss here each of these theories and assess to what degree they can characterize the justification so as to meet some epistemic needs, that we frequently judge important. (shrink)

Conditional independence tests have received special attention lately in machine learning and computational intelligence related literature as an important indicator of the relationship among the variables used by their models. In the field of probabilistic graphical models, which includes Bayesian network models, conditional independence tests are especially important for the task of learning the probabilistic graphical model structure from data. In this paper, we propose the full Bayesian significance test for tests of conditional independence for discrete datasets. The full Bayesian (...) significance test is a powerful Bayesian test for precise hypothesis, as an alternative to the frequentist’s significance tests (characterized by the calculation of the p-value). (shrink)

The ability to solve problems is a prerequisite in preparing mathematics preservice teachers. This study assessed preservice teachers’ problem-solving difficulties and performance, particularly in worded problems on number sense, measurement, geometry, algebra, and probability. Also, academic profile differences in the preservice teacher’s problem-solving performance and common errors were determined. A descriptive-comparative research design was employed with 158 random respondents. Data were gathered face-to-face during the first semester of the school year 2022-2023, and data were analyzed with the aid of jamovi (...) software, ensuring ethical measures. Overall findings revealed that the preservice teachers experienced average difficulty in solving problems. The low performance of the preservice teachers on the given problems was also demonstrated. Further analysis revealed a significant difference between the preservice teachers’ problem-solving performance based on their subject preference and program. Moreover, the error analysis revealed that the preservice teachers incurred comprehension errors in misrepresentation, misinterpretation, and miscalculation. These results will serve as a measure for policymakers and curriculum developers of the teacher education institution concerned to make relevant enhancements to the math courses offered in the elementary and secondary education programs. (shrink)

Neste artigo propomos uma reconceitualização do amor como um modo de engajamento intersubjetivo normativamente guiado pela busca constante do equilíbrio entre a sub- e a sobredeterminação de seu objeto, que se efetiva em relações deconfiança marcadas pelo cuidado com o(a) outro(a). Esta reconceitualização permite que o amor participe da epistemologia como uma virtude intelectual responsabilista, que nos torna membros mais confiáveis de nossas comunidades epistêmicas e nos aproxima de descrições verdadeiras sobre o mundo, ao deixar que diversos pontos de vista (...) sobre esses objetos sejam reconhecidos e valorizados. (shrink)

In this paper, I argue that Plotinus’s critique of divine deliberation in Ennead 6.7 does not seek to banish teleology altogether from his philosophy of nature. Rather, his critique aims to situate teleology within his own metaphysical system so as to reconcile it with the basic principles governing the intelligible universe. In this sense, Plotinus does not propose that we expunge all reference to notions of utility and benefit from our natural explanations; he merely wishes to render those notions coherent (...) with an ontology in which the intelligible always takes precedence over sensible reality. To this end, Plotinus introduces, first, what I call a vertical teleology, where the different animal species create the necessary conditions for the maintenance of higher forms of intelligible life, such as genera. Second, Plotinus advances what I call a horizontal teleology, where the various animal organs serve to provide a minimal coefficient of noetic content to each species in its respective ontic level. Plotinus thus sketches the outlines of a properly ‘noetic’ teleology in Ennead 6.7. (shrink)

The costs of agricultural inputs added to those of labor represent almost a third of the total cost of Brazilian sugarcane production. This study analyzes the behavior of the price per ton of sugarcane in Brazil, relating it to the main production costs of this cultivation. Twelve price indicators from January 2015 to December 2020 were evaluated. First, the data were adjusted to a multiple linear regression model to identify the significant variables on variation in the price per ton of (...) sugarcane. Then, the Monte Carlo simulation was used to measure the level of certainty of occurrence of these variables, and forecasts were obtained from the adjustment of ARIMA models. The results showed the influence of the costs of diesel oil, two agricultural pesticides, and daily laborers on the price of sugarcane, besides an increasing trend of its, providing relevant short-term projections for decision-making about investments in the agribusiness sector. (shrink)

The diversity in agronomic practices being used by sugarcane producers in Brazil determines differences in economic performance and cost structure. The purpose of this study is to evaluate the cost of six systems of agronomic practices using fixed or variable rates for soil amendment, fertilizer, and defensive applications and assess the profitability of these systems at three scales of sugarcane production. We then describe the data sample related to the 2019–2020 harvest season and collected from fifty-five sugarcane producers in the (...) central-south region of Brazil. Thereafter, using a quantitative approach, a cost analysis was performed, and the cumulative frequency of the net revenue for the three scales of production (small, medium, and large), was calculated using a Monte Carlo simulation. The cost analysis indicated that fertilizer had the highest cost considering the agronomic practices adopted at the three scales of production analyzed. The cumulative frequency analysis results from the Monte Carlo simulation showed the highest net revenue per hectare for medium sugarcane producers. In addition, the presence of economies of scale was not confirmed because the lowest cost was found in small-scale sugarcane producers and the highest net revenue was obtained by medium-scale sugarcane producers. (shrink)

This paper discusses the possibility of an absolute vacuum - a space without any substance. The motivation of this study is the contrast between most philosophers, up to Descartes, who stated that a vacuum was impossible, and the 17th century change of outlook, when the possibility and effective existence of the vacuum was accepted after the experiments of Torricelli and Pascal. This article attempts to show that, contrary to the received opinion, the acceptance of an ether is preferable to the (...) acceptance of a vacuum for several reasons. First: it is impossible to provide an empirical proof of the non-existence of the ether; second, an absolute vacuum is unthinkable; third, the ether concept is useful for the understanding of physical phaenomena; and fourth, the hypothesis of an ether in apparently void spaces is useful for the future development of science. The paper also endeavours to show that no recent advance of science changed those conclusions and that no future development can change them. (shrink)

In this essay I will defend three points, the first being that Descartes- unlike the aristotelian traditon- maintained that abstraction is not a operation in which the intellect builds the mathematical object resorting to sensible ob- jects. Secondly I will demonstrate that, according to cartesian philosophy, the faculty of understanding has the ability to instatiate- within the process of abstraction- mathematical symbols that represent the relation between quantities, whether magnitude or multitude.And finally I will advocate that the lack of onthological (...) commitment with sensible experience found in cartesian philosophy of mathematics allows for the creation of a mathematical language that regards the objects of geometry and arithmetics through a system of rules and notations, in other words, algebra. (shrink)