Public discussions of political and social issues are often characterized by deep and persistent polarization. In social psychology, it’s standard to treat belief polarization as the product of epistemic irrationality. In contrast, we argue that the persistent disagreement that grounds political and social polarization can be produced by epistemically rational agents, when those agents have limited cognitive resources. Using an agent-based model of group deliberation, we show that groups of deliberating agents using coherence-based strategies for managing their limited resources tend (...) to polarize into different subgroups. We argue that using that strategy is epistemically rational for limited agents. So even though group polarization looks like it must be the product of human irrationality, polarization can be the result of fully rational deliberation with natural human limitations. (shrink)

[Newspaper Opinion] Before the COVID-19 pandemic and the accompanying fall in oil prices, a carbon price would have been immediately painful for the countries that imposed it, but far better for everyone over the longer term. In this unprecedented moment, introducing a carbon price would be beneficial both now and for the future.

You don't say much about who you are teaching, or what subject you teach, but you do seem to see a need to justify what you are doing. Perhaps you're teaching underprivileged children, opening their minds to possibilities that might otherwise never have occurred to them. Or maybe you're teaching the children of affluent families and opening their eyes to the big moral issues they will face in life — like global poverty, and climate change. If you're doing something like (...) this, then stick with it. Giving money isn't the only way to make a difference. (shrink)

The standard view says that epistemic normativity is normativity of belief. If you’re an evidentialist, for example, you’ll think that all epistemic reasons are reasons to believe what your evidence supports. Here we present a line of argument that pushes back against this standard view. If the argument is right, there are epistemic reasons for things other than belief. The argument starts with evidentialist commitments and proceeds by a series of cases, each containing a reason. As the cases progress, the (...) reasons change from counting in favor of things like having a belief to things like performing ordinary actions. We argue that each of those reasons is epistemic. If the argument succeeds, we should think there are epistemic reasons to consider hypotheses, conduct thought and physical experiments, extend one’s evidence, and perform mundane tasks like eating a sandwich, just as there are epistemic reasons to believe what one’s evidence supports. (shrink)

The is-ought gap is Hume’s claim that we can’t get an ‘ought’ from just ‘is’s. Prior (“The Autonomy of Ethics,” 1960) showed that its most straightforward formulation, a staple of introductory philosophy classes, fails. Many authors attempt to resurrect the claim by restricting its domain syntactically or by reformulating it in terms of models of deontic logic. Those attempts prove to be complex, incomplete, or incorrect. I provide a simple reformulation of the is-ought gap that closely fits Hume’s description of (...) it. My formulation of the gap avoids the proposed counterexamples from Prior and offers a natural explanation of why they seem compelling. Moreover, I show that my formulation of the gap is guaranteed by standard theories of the semantics of normative terms, and that provides a more general reason to accept it. (shrink)

In this paper I argue that the search for explainable models and interpretable decisions in AI must be reformulated in terms of the broader project of offering a pragmatic and naturalistic account of understanding in AI. Intuitively, the purpose of providing an explanation of a model or a decision is to make it understandable to its stakeholders. But without a previous grasp of what it means to say that an agent understands a model or a decision, the explanatory strategies will (...) lack a well-defined goal. Aside from providing a clearer objective for XAI, focusing on understanding also allows us to relax the factivity condition on explanation, which is impossible to fulfill in many machine learning models, and to focus instead on the pragmatic conditions that determine the best fit between a model and the methods and devices deployed to understand it. After an examination of the different types of understanding discussed in the philosophical and psychological literature, I conclude that interpretative or approximation models not only provide the best way to achieve the objectual understanding of a machine learning model, but are also a necessary condition to achieve post hoc interpretability. This conclusion is partly based on the shortcomings of the purely functionalist approach to post hoc interpretability that seems to be predominant in most recent literature. (shrink)

Tradução para o português do livro "Le Scepticisme Philosophique", Paris: Bordas, 1972, de André Verdan. Título da edição brasileira: O Ceticismo Filosófico. Florianópolis: Editora da UFSC, 1998, 135 páginas. ISBN: 8532801390 / ISBN-13: 9788532801395.

Some Molinists claim that a perfectly good God would actualize a world that is salvifically optimal, that is, a world in which the balance between the saved and damned is optimal and cannot be improved upon without undesirable consequences. I argue that given some plausible principles of rationality, alongside the assumptions Molinists already accept, God’s perfect rationality necessarily would lead him to actualize a salvifically optimal world; I call this position “Optimistic Molinism.” I then consider objections and offer replies, concluding (...) that Optimistic Molinism is undefeated and merits further exploration. (shrink)

Current work in language models (LMs) helps us speed up or even skip thinking by accelerating and automating cognitive work. But can LMs help us with critical thinking -- thinking in deeper, more reflective ways which challenge assumptions, clarify ideas, and engineer new concepts? We treat philosophy as a case study in critical thinking, and interview 21 professional philosophers about how they engage in critical thinking and on their experiences with LMs. We find that philosophers do not find LMs to (...) be useful because they lack a sense of selfhood (memory, beliefs, consistency) and initiative (curiosity, proactivity). We propose the selfhood-initiative model for critical thinking tools to characterize this gap. Using the model, we formulate three roles LMs could play as critical thinking tools: the Interlocutor, the Monitor, and the Respondent. We hope that our work inspires LM researchers to further develop LMs as critical thinking tools and philosophers and other 'critical thinkers' to imagine intellectually substantive uses of LMs. (shrink)

Rules 405(a) and 608(a) of the Federal Rules of Evidence allow the use of testimony about a witness’s reputation to support or undermine his or her credibility in trial. This paper analyzes the evidential weight of such testimony from the point of view of social epistemology and the theory of social networks. Together they provide the necessary elements to analyze how reputation is understood in this case, and to assess the epistemic foundation of a reputational attribution. The result of the (...) analysis will be that reputational testimony is extremely weak from an epistemological point of view, and that in many cases there are more reliable substitutes that achieve a similar purpose. The obvious fix, in my view, is to eliminate the use of reputation testimony to support or undermine the credibility, honesty, chastity or peacefulness of a witness. (shrink)

In a recent paper, Erasmus et al. (2021) defend the idea that the ambiguity of the term “explanation” in explainable AI (XAI) can be solved by adopting any of four different extant accounts of explanation in the philosophy of science: the Deductive Nomological, Inductive Statistical, Causal Mechanical, and New Mechanist models. In this chapter, I show that the authors’ claim that these accounts can be applied to deep neural networks as they would to any natural phenomenon is mistaken. I also (...) provide a more general argument as to why the notion of explainability as it is currently used in the XAI literature bears little resemblance to the traditional concept of scientific explanation. It would be more fruitful to use the label “understandable AI” to avoid the confusion that surrounds the goal and purposes of XAI. In the second half of the chapter, I argue for a pragmatic conception of understanding that is better suited to play the central role attributed to explanation in XAI. Following De Regt (2017) and Kuorikoski and Ylikoski (2015), the conditions of satisfaction for understanding an ML system are fleshed out in terms of an agent’s success in using the system. (shrink)

There is a growing awareness that there are many subtle forms of exclusion and partiality that affect the correct workings of a judicial system. The concept of epistemic injustice, introduced by the philosopher Miranda Fricker, is a useful conceptual tool to understand forms of judicial partiality that often go undetected. In this paper, we present Fricker’s original theory and some of the applications of the concept of epistemic injustice in legal processes. In particular, we want to show that the seed (...) planted by Fricker has flourished into a rich field of study in which the concept is used to analyze many different phenomena in law, not always following the original characterization provided by her. This has led to a distinction between what we will call the narrow version of the concept, which is closer to Fricker’s original account, and the wider version of epistemic injustice, which is a more controversial notion because it is always on the verge of morphing into other well-known concepts like sexism, racial discrimination, oppression, silencing, and gaslighting. We will show that the value of the narrow version is mostly theoretical, and that in order to use the concept of epistemic injustice one must adopt a more liberal understanding of it. (shrink)

Many word forms in natural language are polysemous, but only some of them allow for co-predication, that is, they allow for simultaneous predications selecting for two different meanings or senses of a nominal in a sentence. In this paper, we try to explain (i) why some groups of senses allow co-predication and others do not, and (ii) how we interpret co-predicative sentences. The paper focuses on those groups of senses that allow co-predication in an especially robust and stable way. We (...) argue, using these cases, but focusing particularly on the multiply polysemous word ‘school’, that the senses involved in co-predication form especially robust activation packages, which allow hearers and readers to access all the different senses in interpretation. (shrink)

Freedom of speech has traditionally been a cause championed by the left and liberal side of the political spectrum, against conservatives who have tried to limit the expression of radical ideas. Here are three examples from the United States: 1) When I was appointed to Princeton University in 1999, Steve Forbes, whose father had endowed the university’s Forbes College, called for my appointment to be rescinded, and pledged that he would not donate to the university as long as I was (...) on the faculty. Forbes was, at the time, running for the Republican nomination for president. (shrink)

This paper offers an overview of various alternative formulations for Analysis, the theory of Integral and Differential Calculus, and its diverging conceptions of the topological structure of the continuum. We pay particularly attention to Smooth Analysis, a proposal created by William Lawvere and Anders Kock based on Grothendieck’s work on a categorical algebraic geometry. The role of Heyting’s logic, common to all these alternatives is emphasized.

This paper offers a reconstruction of Wittgenstein's discussion on inductive proofs. A "algebraic version" of these indirect proofs is offered and contrasted with the usual ones in which an infinite sequence of modus pones is projected.

Wittgenstein’s philosophy of mathematics involves two highly controversial theses: the idea that mathematical propositions are not about (abstract) objects and the idea that no mathematical conjecture is ever answered as such, because the advent of the proof always determines a semantical shift of the meanings of the terms involved in the conjecture. The present article offers a reconstruction of Wittgenstein’s arguments supporting these theses within a very restricted setting: Archimedes’ discovery of an algorithm for calculating the number Pi.

Cada día es más evidente que existen muchas formas sutiles de exclusión y parcialidad que afectan el correcto funcionamiento de los sistemas jurídicos. El concepto de injusticia epistémica, introducido por la filósofa Miranda Fricker, ofrece una herramienta conceptual útil para comprender estas formas de exclusión y parcialidad judicial que a menudo pasan desapercibidas. En este artículo presentamos la teoría original de Fricker y algunas de las aplicaciones del concepto de injusticia epistémica en los procesos jurídicos. En particular, queremos demostrar que (...) la semilla sembrada por Fricker ha generado un floreciente campo de estudio en el cual el concepto se utiliza para analizar muchos fenómenos diferentes en el ámbito jurídico, no siempre siguiendo la caracterización original proporcionada por ella. Esto ha llevado a una distinción entre lo que llamaremos la versión estrecha del concepto, que se acerca a la descripción original de Fricker, y la versión más amplia de injusticia epistémica, que es una noción más controvertida porque existe el riesgo de que se confunda con otros conceptos más conocidos como el sexismo, la discriminación racial, la opresión, el silenciamiento y el gaslighting. Mostraremos que el valor de la versión estrecha es principalmente teórico y que para utilizar el concepto de injusticia epistémica se debe adoptar una comprensión más liberal del mismo. (shrink)

Durante los últimos años, el problema de cómo justificar aquellas creencias que se originan en testimonios ha ocupado un lugar central en la epistemología. Sin embargo, muy pocas de esas reflexiones son conocidas en el derecho probatorio. En el presente ensayo analizo la prueba testimonial a la luz de estas reflexiones con el fin de poner de manifiesto los supuestos epistemológicos de algunos principios procesales. En concreto, analizo la legislación colombiana y la estadounidense en el marco de la disputa entre (...) el reduccionismo y el antirreduccionismo en la filosofía del testimonio. Al final sugiero una nueva aproximación epistemológica que replantea los términos de la disputa y que tiene implicaciones importantes para la valoración de la prueba testimonial en los procesos judiciales. (shrink)

El testimonio es nuestra mayor fuente de creencias. La gran mayoría de nuestras creencias han sido adquiridas a partir de las palabras de otros y no a través de la observación directa del mundo. Una de las peculiaridades de la mayor parte de las creencias testimoniales es que son aceptadas sin ninguna deliberación consciente. Mientras el testimonio sea consistente con nuestras creencias y la fuente sea confiable, la reacción más corriente es la aceptación automática de la información (Thagard 2004, 2005). (...) Nuestra confianza en el testimonio de los demás es un requisito no sólo para la construcción colectiva del conocimiento (Hardwig 1985, 1991), sino también para la interacción social en general. Sin embargo existen contextos en los que la aceptación apresurada de un testimonio falso puede tener consecuencias nefastas. En contextos científicos, legales, políticos y financieros, entre otros, se toman decisiones importantes y se implementan políticas cruciales a partir de las afirmaciones de otros. En estos contextos la aceptación de un testimonio debe ser el resultado de un proceso de decisión basado en criterios objetivos de justificación. Sin embargo, existen dos objeciones al intento de justificar la aceptación de un testimonio (Coady 1973, 1992). La primera es que cualquier justificación será irremediablemente circular puesto que la inmensa mayoría de testimonios obtienen su justificación, al menos en parte, de evidencia de tipo testimonial. La segunda es que nuestras inferencias acerca de la confiabilidad de ciertos tipos de testimonio nunca tendrán un apoyo inductivo lo suficientemente fuerte debido a que los casos en los que un tipo de testimonio puede ser verificado directamente en la experiencia nunca serán lo suficientemente numerosos. En este ensayo presento una solución al problema de cómo decidir racionalmente si un testimonio puede ser aceptado como evidencia probatoria en una investigación. Mi propuesta, que está basada en la teoría de revisión de creencias desarrollada por Levi (1984, 1991), muestra que la aceptación justificada de un testimonio está basada en exactamente los mismos mecanismos de adquisición de creencias que operan en el caso de evidencias no testimoniales; al mismo tiempo, la propuesta da cuenta de las particularidades que se presentan en el proceso de evaluación de una evidencia testimonial. Mi tesis es que la decisión de aceptar un testimonio es un proceso que se cumple en dos etapas. En la primera se busca una justificación pare el testimonio buscando todos los hechos que aumenten la probabilidad de que el testimonio sea verdadero, es decir, de que el testigo o declarante esté reportando verídicamente un hecho. La aceptación de estos hechos y de su relación probabilística positiva con respecto al testimonio está basada en la búsqueda de un equilibrio entre su credibilidad y su valor informativo. En la segunda etapa, se determina si la justificación obtenida en la primera es suficiente para la aceptación del testimonio, de nuevo buscando encontrar un equilibrio entre su credibilidad y la utilidad de la información que contiene en promover los intereses y metas cognitivas del investigador. (shrink)

Do university ethics classes influence students’ real-world moral choices? We aimed to conduct the first controlled study of the effects of ordinary philosophical ethics classes on real-world moral choices, using non-self-report, non-laboratory behavior as the dependent measure. We assigned 1332 students in four large philosophy classes to either an experimental group on the ethics of eating meat or a control group on the ethics of charitable giving. Students in each group read a philosophy article on their assigned topic and optionally (...) viewed a related video, then met with teaching assistants for 50-minute group discussion sections. They expressed their opinions about meat ethics and charitable giving in a follow-up questionnaire (1032 respondents after exclusions). We obtained 13,642 food purchase receipts from campus restaurants for 495 of the students, before and after the intervention. Purchase of meat products declined in the experimental group (52% of purchases of at least $4.99 contained meat before the intervention, compared to 45% after) but remained the same in the control group (52% both before and after). Ethical opinion also differed, with 43% of students in the experimental group agreeing that eating the meat of factory farmed animals is unethical compared to 29% in the control group. We also attempted to measure food choice using vouchers, but voucher redemption rates were low and no effect was statistically detectable. It remains unclear what aspect of instruction influenced behavior. (shrink)

Los sesgos cognitivos afectan negativamente la toma de decisiones en todas las esferas de la vida, incluyendo las decisiones de los jueces. La imposibilidad de eliminarlos por completo de la práctica del derecho, o incluso de controlar sus efectos, contrasta con el anhelo de que las decisiones judiciales sean el resultado exclusivo de un razonamiento lógico-jurídico correcto. Frente el efecto sistemático, recalcitrante y porfiado de los sesgos cognitivos, una posible estrategia para disminuir su efecto es enfocarse, no en modificar el (...) comportamiento de los agentes judiciales, sino en moldear su entorno para que los sesgos tengan menos oportunidades de aparecer. En particular, es más provechoso concentrar los esfuerzos en identificar aquellas reglas procesales que faciliten o limiten el efecto de los sesgos. En este ensayo propongo un diálogo fructífero entre el derecho y la psicología que puede llevar a mejorar la calidad de los sistemas judiciales. La propuesta está basada en la creación de guías de práctica judicial que puedan servir de base para la creación de protocolos procesales que limiten en la medida de lo razonable sus efectos negativos y conduzcan a mejores decisiones judiciales. (shrink)

The probability calculus is very often used in the philosophy of science in order to support or to analyse epistemological points of view. The aim of this paper is to present in a summary the usual axioms of this calculus, as weIl as its most common consequences and theorems, which the philosopher of science in his arguments ressorts to.

This paper explores the relationship between a prominent version of the relational view of memory and recent work on forms of unsuccessful remembering or memory errors. I argue that unsuccessful remembering poses an important challenge for the relational view. Unsuccessful remembering can be divided into two kinds: misremembering and confabulating. I discuss each of these cases in light of a recent relational account, according to which remembering is characterized by an experiential relation to past events, and I argue that experiential (...) relations do not adequately distinguish between remembering and unsuccessful remembering. This is because there are, on the one hand, cases of remembering that do not instantiate the relevant experiential relations, and, on the other hand, cases of confabulation and misremembering that do instantiate the relevant experiential relations. I conclude by suggesting that any successful relationalist attempt to explain remembering needs to come to grips with unsuccessful remembering. (shrink)

¿Existe alguna diferencia filosóficamente significativa entre una explicación científica y las explicaciones que se ofrecen en el curso de la vida diaria? Dado que la mayor parte de las discusiones en la filosofía de la ciencia se refieren al primer tipo de explicaciones, debemos considerar si existe un concepto específico que corresponda al término “explicación científica”, y que sea discontinuo de su contraparte cotidiana. El ensayo tiene cuatro secciones. En cada una de ellas considero diferentes criterios que podrían ser utilizados (...) para establecer una distinción de clase entre las explicaciones científicas y las cotidianas. En la primera sección exploro la posibilidad de establecer un criterio puramente sociológico: el estatus científico de una explicación dependería del estatus institucional de las personas que dan origen a la explicación. El segundo criterio estudiado fue propuesto por Hempel: las explicaciones científicas deben hacer uso explícito de leyes naturales, y la ausencia de leyes invalida cualquier intento de ofrecer una explicación científica. Un tercer criterio se basa en la naturaleza del explanandum. Algunos filósofos han defendido la idea de que la única diferencia filosóficamente significativa entre las explicaciones científicas y las no científicas reside en el tipo de explanandum del que se ocupa cada una de ellas. En la vida diaria explicamos eventos individuales, mientras que en la ciencia se pretende explicar regularidades. Finalmente, examino el criterio propuesto por Wesley Salmon según el cual la diferencia entre los dos tipos de explicación está determinada por el tipo de comprensión que proporciona cada uno de ellos. Al final concluyo que ninguno de estos criterios es adecuado y que la aparente diferencia entre los dos tipos de explicaciones es una diferencia de grado y no de clase. Las explicaciones científicas ciertamente tienen un mayor grado de precisión, detalle y complejidad que sus contrapartes en la vida cotidiana. Normalmente involucran el uso de las matemáticas y de lenguajes altamente regimentados. Pero a pesar de estas diferencias, concluyo que los elementos que hacen que algo sea una explicación son esencialmente los mismos en ambos casos. (shrink)

Varios teóricos del derecho han propuesto el uso de umbrales o estándares de prueba más flexibles y más finamente discriminados. En la medicina es común utilizar estándares que poseen estas características en los procedimientos diagnósticos y en los exámenes médicos. Esta ponencia ofrece un marco probabilístico para establecer estándares de prueba múltiples en cualquier disciplina. La tesis principal es que la evidencia es un concepto umbral con respecto a la probabilidad. Múltiples umbrales pueden ser establecidos en un marco de intervalos (...) de probabilidad para la hipótesis que está siendo puesta a prueba, los cuales reflejan los diferentes grados de apoyo que la evidencia le provee a la hipótesis. Examinando los mecanismos utilizados para establecer los umbrales en medicina, sugiero una manera para establecer umbrales múltiples de prueba en derecho de una manera no arbitraria. (shrink)

A common objection to probabilistic theories of causation is that there are prima facie causes that lower the probability of their effects. Among the many replies to this objection, little attention has been given to Mellor's (1995) indirect strategy to deny that probability-lowering factors are bona fide causes. According to Mellor, such factors do not satisfy the evidential, explanatory, and instrumental connotations of causation. The paper argues that the evidential connotation only entails an epistemically relativized form of causal attribution, not (...) causation itself, and that there are clear cases of explanation and instrumental reasoning that must appeal to negatively relevant factors. In the end, it suggests a more liberal interpretation of causation that restores its connotations. Una objeción común a las teorías probabilísticas de la causalidad es que aparentemente existen causas que disminuyen la probabilidad de sus efectos. Entre las muchas respuestas a esta objeción, se le ha dado poca atención a la estrategia indirecta de D. H. Mellor (1995) para negar que un factor que disminuya la probabilidad de un efecto sea una causa legítima. Según Mellor, tales factores no satisfacen las connotaciones evidenciales, explicativas e instrumentales de la causalidad. El artículo argumenta que la connotación evidencial sólo implica una forma epistémicamente relativizada de atribución causal y no la causalidad misma, y que hay casos claros de explicación y razonamiento instrumental que deben apelar a factores negativamente relevantes. Se sugiere una interpretación más liberal de la causalidad que reinstaura sus connotaciones. (shrink)

Para solucionar a questão “sobre o que há” levantada por Quine, e realizar a tarefa de compreender de forma exauriente as muitas unidades ontológicas que povoam a grande província do Ser, propomos como alternativa à ontologia punteliana, uma nova ontologia designada de “Ontologia Estrutural” (OE). Tal ontologia parte de bases teóricas sistemático-estruturais, mas desemboca em uma visão diversa em que co-subsistem unidades factuais estruturadas, configurações estruturais (dinâmicas), bem como unidades ontológicas aparentes (objetos), todas englobadas pela subdimensão temporal que as interconexiona, (...) compreendida esta como uma subdimensão (interna) da macrodimensão do Ser. Nesse sentido, começamos situando a temática ontológica na discussão filosófica atual a partir de uma chave quineana; prosseguimos apresentando um conceito de verdade derivado de nossa leitura da filosofia punteliana, o qual constituirá o ponto de ligação entre linguagem e mundo. Na sequência, mostramos como do conceito de verdade trazido à lume, após uma breve incursão na semântica filosófica, chegamos ao campo ontológico a partir das categorias ontológicas de estrutura e estado ontológico. Ao final, delineamos, em seus caracteres gerais, a nossa ontologia estrutural, compreensiva de noções ontológicas próprias que dão novos rumos à compreensão filosófica desta grande temática. (shrink)

This article discusses some of Chateaubriand’s views on the connections between the ideas of formalization and infinity, as presented in chapters 19 and 20 of Logical Forms. We basically agree with his criticisms of the standard construal of these connections, a view we named “formal proofs as ultimate provings”, but we suggest an alternative way of picturing that connection based on some ideas of the late Wittgenstein.

Aunque el derecho probatorio y el derecho procesal se han dedicado desde siempre al estudio de los problemas relacionados con las pruebas y el establecimiento de los hechos en los procesos judiciales, el énfasis ha estado siempre en el aspecto formal, doctrinal y procedimental en detrimento de los fundamentos filosóficos y teóricos. Durante los últimos años ha habido un intento sostenido de explorar estos fundamentos combinando no sólo las herramientas tradicionales proporcionadas por la lógica, la gramática y la retórica, sino (...) también los avances hechos en ciencias como la estadística y la probabilidad, la medicina y la psicología forenses, la psicología de la percepción, la epistemología y la filosofía de la ciencia. El presente libro reúne las contribuciones de destacados juristas y filósofos latinoamericanos a esta nueva perspectiva interdisciplinaria, conocida como epistemología jurídica. El libro está dividido en tres grandes temas: la primera parte explora los problemas epistemológicos del conocimiento de los hechos en los procesos judiciales; la segunda se enfoca en el problema de los estándares de prueba; y la sección final discute el testimonio de los expertos. En su conjunto el libro ofrece un panorama tanto de los problemas centrales de la epistemología jurídica, como del estado del arte de la disciplina. (shrink)

In the first of this new series for the journal, Peter Singer responds to questions from the editors and Theron Pummer.

This paper deals with the recent Swedish proposals of a Intuitionistic notion of Truth, by Dag Prawitz and Per Martin-Löf.

El desarrollo de las artes visuales durante el siglo XX desdibujó la frontera entre aquellos objetos y artefactos que llamamos obras de arte, y aquéllos que no son merecedores de ese título. Arthur Danto ha propuesto una teoría estética a la luz de la cual sería posible volver a definir los límites del arte. En este ensayo examino dos de los aspectos más problemáticos de la teoría: la importancia excesiva que Danto le otorga al concepto de mímesis y su concepción (...) teleológica de la historia del arte. Si atenuamos el papel de estos dos elementos, la teoría pierde gran parte de su poder explicativo. En las últimas dos secciones del ensayo arguyo que el mundo del arte al que Danto atribuye un papel central en el problema de la demarcación debe él mismo ser considerado un subproducto de las condiciones que determinan la naturaleza del arte en general. (shrink)

El ensayo presenta el esbozo de una teoría de la explicación basada en el modelo duda-creencia de investigación propuesto por Peirce y desarrollado por Isaac Levi. Inicialmente se caracteriza una noción de explicación que hace referencia a las creencias y fines epistémicos de los miembros de una comunidad científica. Posteriormente se demuestra que la inclusión de los aspectos pragmáticos de la explicación en la teoría no sólo no conduce al relativismo, sino que es necesaria para poder dar cuenta de la (...) relación entre las nociones de explicación y comprensión. (shrink)

Radical enactivism, an increasingly influential approach to cognition in general, has recently been applied to memory in particular, with Hutto and Peeters New directions in the philosophy of memory, Routledge, New York, 2018) providing the first systematic discussion of the implications of the approach for mainstream philosophical theories of memory. Hutto and Peeters argue that radical enactivism, which entails a conception of memory traces as contentless, is fundamentally at odds with current causal and postcausal theories, which remain committed to a (...) conception of traces as contentful: on their view, if radical enactivism is right, then the relevant theories are wrong. Partisans of the theories in question might respond to Hutto and Peeters’ argument in two ways. First, they might challenge radical enactivism itself. Second, they might challenge the conditional claim that, if radical enactivism is right, then their theories are wrong. In this paper, we develop the latter response, arguing that, appearances to the contrary notwithstanding, radical enactivism in fact aligns neatly with an emerging tendency in the philosophy of memory: radical enactivists and causal and postcausal theorists of memory have begun to converge, for distinct but compatible reasons, on a contentless conception of memory traces. (shrink)

The use of machine learning algorithms has become ubiquitous in hiring decisions. Recent studies have shown that many of these algorithms generate unlawful discriminatory effects in every step of the process. The training phase of the machine learning models used in these decisions has been identified as the main source of bias. For a long time, discrimination cases have been analyzed under the banner of disparate treatment and disparate impact, but these concepts have been shown to be ineffective in the (...) context of AI. This paper examines the possibility of studying algorithmic discrimination from the perspective of negligence law. Negligent selection and validation of datasets and classifiers is a salient cause of improper training in machine learning. It is a breach of an employer’s duty to protect others, a failure of its exercise of due care in the manner of choosing employees. Adopting negligence to algorithmic discrimination requires a reformulation of what is foreseeable and reasonable within the context of black box algorithms, and a shift in the burden of proof to the employer, who must present evidence of its efforts to avoid bias. (shrink)

This paper argues that there is a class of terms, or uses of terms, that are best accounted for by an expressivist account. We put forward two sets of criteria to distinguish between expressive and factual terms. The first set relies on the action-guiding nature of expressive language. The second set relies on the difference between one's evidence for making an expressive vs. factual statement. We then put those criteria to work to show, first, that the basic evaluative adjectives such (...) as ‘good’ have expressive as well as factual uses and, second, that many adjectives whose primary meanings are factual, such as ‘powerful’, also have expressive uses. (shrink)

This paper offers a new interpretation for Wittgenstein`s treatment of mathematical identities. As it is widely known, Wittgenstein`s mature philosophy of mathematics includes a general rejection of abstract objects. On the other hand, the traditional interpretation of mathematical identities involves precisely the idea of a single abstract object – usually a number –named by both sides of an equation.

The objective of this paper will be to present a critical evaluation of the so-called “standard conception of a proof”. According to this conception, a text could only be called a “demonstration of a certain mathematical proposition” if we could find a completely formalized version of that demonstration, its “corresponding formal proof”. We will compare these ideas with the treatment of the same topic within two markedly different contexts, that of contemporary Swedish intuitionism and that of modern software engineering. Finally, (...) we will offer a quick discussion of some of Wittgenstein's proposals regarding the subject. /// -/- O objetivo deste texto será o de apresentar uma avaliação crítica da assim chamada “concepção estândar” do que seja uma prova. Segundo essa concepção, um texto só poderia ser chamado de uma “demonstração de uma certa proposição matemática” se pudéssemos encontrar uma versão completamente formalizada daquela demonstração, sua “prova formal correspondente”. Faremos comparações com o tratamento do mesmo tópico em dois contextos muito distintos, aquele do intuicionismo sueco contemporâneo e o da moderna engenharia de software. Por fim, faremos uma rápida apresentação de algumas propostas de Wittgenstein sobre o assunto. (shrink)

Polarization is a topic of intense interest among social scientists, but there is significant disagreement regarding the character of the phenomenon and little understanding of underlying mechanics. A first problem, we argue, is that polarization appears in the literature as not one concept but many. In the first part of the article, we distinguish nine phenomena that may be considered polarization, with suggestions of appropriate measures for each. In the second part of the article, we apply this analysis to evaluate (...) the types of polarization generated by the three major families of computational models proposing specific mechanisms of opinion polarization. (shrink)

In this research I present a study on the origin of alienism in the 19th century in the work of Phillipe Pinel in context. The purpose of the paper is to show how the French physician proposes alienism inspired by the anthropological ideas of his time. After the introduction, a brief historical overview of the anthropology of modernity is given to place Pinel's work in context. This is followed by a survey of Pinel's anthropological ideas, which are in a sense (...) coincident with his period. Finally, it is presented how Pinel proposes his famous alienism, situated between the understanding and the affected life, as well as the way of curing his patients as a consequence of his anthropological approach. (shrink)

In this paper I defend the idea that there is a sense in which it is meaningful and useful to talk about objective understanding, and that to characterize that notion it is necessary to formulate an account of explanation that makes reference to the beliefs and epistemic goals of the participants in a cognitive enterprise. Using the framework for belief revision developed by Isaac Levi, I analyze the conditions that information must fulfill to be both potentially explanatory and epistemically valuable (...) to an inquiring agent and to a scientific community. To be potentially explanatory, the information must state the relations of probabilistic relevance that the explanans bares to the explanandum. But a potential explanation con only be a bona fide explanation if it becomes part of inquiry, that is, if an agent or a group of agents can see any value in it for their cognitive purposes. I provide a way to evaluate the epistemic value of a potential explanation as a function of its credibility and its informational content. (shrink)

El uso de sistemas de machine learning en los procesos de selección laboral ha sido de gran utilidad para agilizarlos y volverlos más eficientes, pero al mismo tiempo ha generado problemas en términos de equidad, confiabilidad y transparencia. En este artículo comenzamos explicando los diferentes usos de la Inteligencia Artificial en los procesos de selección laboral en Estados Unidos. Presentamos los sesgos sexuales y raciales que han sido detectados en algunos de ellos y explicamos los obstáculos jurídicos y prácticos para (...) su detección y análisis. Un posible remedio jurídico a la discriminación algorítmica es el régimen de impacto diferencial sistémico utilizado en Estados Unidos. Usamos algunas características de este régimen para señalar los vacíos jurídicos frente a la discriminación en el acceso al empleo en el ámbito del derecho laboral colombiano, y ofrecemos algunas características generales que podría tener un régimen de esa naturaleza. (shrink)

Social wasps are broadly distributed in Brazil, and their distribution is closely related to local plant composition. However, only a few studies on the diversity of these insects have been carried out in northeastern Brazil, and in Caatinga Biome the diversity is probably underestimated due to the lack of inventories for the region. Aiming at advancing the knowledge about the wasp fauna, we carried out this study from October 2005 to September 2006 in Ibipeba, northeastern Brazil. We collected 172 wasps (...) of five genera and eight species, and recorded Polybia ruficeps Schrottky, 1902 for the first time in the state of Bahia. The most abundant species was Polybia ignobilis (Haliday, 1836) (n = 69), and the least abundant were Brachygastra lecheguana (Latreille, 1824) (n = 2) and Polistes canadensis (Linnaeus, 1758) (n = 2). The present study inventory focused exclusively on the diversity of social wasps in an area of Caatinga, which contributes to advance the local fauna knowledge. (shrink)

There is too much that we do not know about COVID-19. The longer we take to find it out, the more lives will be lost. In this paper, we will defend a principle of risk parity: if it is permissible to expose some members of society (e.g. health workers or the economically vulnerable) to a certain level of ex ante risk in order to minimize overall harm from the virus, then it is permissible to expose fully informed volunteers to a (...) comparable level of risk in the context of promising research into the virus. We apply this principle to three examples of risky research: skipping animal trials for promising treatments, human challenge trials to speed up vaccine development, and low-dose controlled infection or “variolation.” We conclude that if volunteers, fully informed about the risks, are willing to help fight the pandemic by aiding promising research, there are strong moral reasons to gratefully accept their help. To refuse it would implicitly subject others to still graver risks. (shrink)

Moore’s Paradox is a test case for any formal theory of belief. In Knowledge and Belief, Hintikka developed a multimodal logic for statements that express sentences containing the epistemic notions of knowledge and belief. His account purports to offer an explanation of the paradox. In this paper I argue that Hintikka’s interpretation of one of the doxastic operators is philosophically problematic and leads to an unnecessarily strong logical system. I offer a weaker alternative that captures in a more accurate way (...) our logical intuitions about the notion of belief without sacrificing the possibility of providing an explanation for problematic cases such as Moore’s Paradox. (shrink)