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)

Con el fin de examinar los aspectos exclusivamente morales del suicidio asistido y la eutanasia activa voluntaria, el análisis debe ser llevado a cabo independientemente de la función social de los agentes involucrados, de la opinión de los familiares del paciente terminal y del público en general, y de las consecuencias legales de dichas acciones. En consecuencia, en el presente ensayo se analiza un imaginario caso neutral, aislado del contexto natural de la eutanasia y el suicidio asistido. Utilizando un principio (...) moral—llamado PMS en el ensayo—cuya aplicabilidad depende de la apreciación subjetiva que de él hagan la persona que desea morir y el agente que asiste en su muerte, en el ensayo se concluye que en ciertos casos es posible justificar la obligación moral de asistir en un suicidio o de llevar a cabo una eutanasia activa voluntaria. (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)

This paper presents a new reconstruction of Wittgenstein’s famous (and controversial) rule-following arguments. Two are the novel features offered by our reconstruction. In the first place, we propose a shift of the central focus of the discussion, from the general semantics and the philosophy of mind to the philosophy of mathematics and the rejection of the notion of a function. The second new feature is positive: we argue that Wittgenstein offers us a new alternative notion of a rule (to replace (...) the rejected functions), a notion reminiscent of Category Theory’s notion of a morphism. (shrink)

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)

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)

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)

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)

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)

El trabajo insiste en la necesidad de flexibilizar el concepto general de experiencia, acudiendo a una "razón ampliada" . La idea de creación, por su parte, acentuando la diferencia en la continuidad, muestra que, junto a la dificultad, se da también una peculiar posibilidad de la experiencia religiosa, y posibilita su verificabilidad en una lógica concreta, atenta a su dación específica. Eso transforma el concepto de revelación, que se hace "ofrecimiento mayéutico" y abre la posibilidad del dialogo, tanto con la (...) cultura como de las religiones entre sí. (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)

Testimony about the future dangerousness of a person has become a central staple of many judicial processes. In settings such as bail, sentencing, and parole decisions, in rulings about the civil confinement of the mentally ill, and in custody decisions in a context of domestic violence, the assessment of a person’s propensity towards physical or sexual violence is regarded as a deciding factor. These assessments can be based on two forms of expert testimony: actuarial or clinical. The purpose of this (...) paper is to examine the scientific and epistemological basis of both methods of prediction or risk assessment. My analysis will reveal that this kind of expert testimony is scientifically baseless. The problems I will discuss will generate a dilemma for factfinders: on the one hand, given the weak predictive abilities of the branches of science involved, they should not admit expert clinical or actuarial testimony as evidence; on the other hand, there is a very strong tradition and a vast jurisprudence that supports the continued use of this kind of expert testimony. It is a clear case of the not so uncommon conflict between science and legal tradition. (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.

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)

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)

El análisis de los conceptos de espacio y tiempo es generalmente considerado uno de los aspectos menos satisfactorios de la obra de Hume. Kemp Smith ha demostrado que en esta sección del Tratado Hume estaba respondiendo a los argumentos que Pierre Bayle había utilizado para probar que el razonamiento humano siempre termina refutándose a sí mismo. En este ensayo expongo las falacias en los argumentos de Bayle, las cuales están basadas en una comprensión inadecuada del concepto de extensión. Hume no (...) logró detectar dichas falacias y repitió los mismos errores de Bayle, lo cual explica la absurda doctrina del espacio que defiende en el Tratado. (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)

The objective of this article is to try to elucidate Wittgenstein’s ex-travagant thesis that each and every mathematical advancement involves some “semantical mutation”, i.e., some alteration of the very meanings of the terms involved. To do that we will argue in favor of the idea of a “modal incompati-bility” between the concepts involved, as they were prior to the advancement, and what they become after the new result was obtained. We will also argue that the adoption of this thesis profoundly (...) alters the traditional way of con-struing the idea of “progress” in mathematics. (shrink)

The essay discusses the interpretation of Aristotle's natural right teaching by Leo Strauss. This interpretation ought to be seen as the result of an investigation into the history of philosophy and of an attempt to philosophically address political problems. By virtue of this twofold origin, the Straussian commentary is unorthodox: it deviates from traditional Aristotelianism (Aquinas and Averroes) and it seems alien to the text of the Nicomachean Ethics. Strauss's criticism of medieval variants results from their incapacity—shared by contemporary political (...) thought—to address a perplexing issue: political exception. He sees in Aristotle's political teaching a way to escape from this failure: the unification, in natural right, of the requirements of statesmanship and ethics. The discovery of this way allowed Strauss to produce an interpretation of natural right that articulates important points pertaining to Aristotelian political science. (shrink)

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 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)

This paper raises three questions regarding the attribution of beliefs, desires, and intentions to robots. The first one is whether humans in fact engage in robot mindreading. If they do, this raises a second question: does robot mindreading foster trust towards robots? Both of these questions are empirical, and I show that the available evidence is insufficient to answer them. Now, if we assume that the answer to both questions is affirmative, a third and more important question arises: should developers (...) and engineers promote robot mindreading in view of their stated goal of enhancing transparency? My worry here is that by attempting to make robots more mind-readable, they are abandoning the project of understanding automatic decision processes. Features that enhance mind-readability are prone to make the factors that determine automatic decisions even more opaque than they already are. And current strategies to eliminate opacity do not enhance mind-readability. The last part of the paper discusses different ways to analyze this apparent trade-off and suggests that a possible solution must adopt tolerable degrees of opacity that depend on pragmatic factors connected to the level of trust required for the intended uses of the robot. (shrink)

Unlike other classical arguments for the existence of God, Pascal’s Wager provides a pragmatic rationale for theistic belief. Its most popular version says that it is rationally mandatory to choose a way of life that seeks to cultivate belief in God because this is the option of maximum expected utility. Despite its initial attractiveness, this long-standing argument has been subject to various criticisms by many philosophers. What is less discussed, however, is the rationality of this choice in situations where the (...) decision-makers are confronted with greater uncertainty. In this paper, I examine the imprecise version of Pascal’s Wager: those scenarios where an agent’s credence that God exists is imprecise or vague rather than precise. After introducing some technical background on imprecise probabilities, I apply five different principles for decision-making to two cases of state uncertainty. In the final part of the paper, I argue that it is not rationally permitted to include zero as the lower probability of God’s existence. Although the conditions for what makes an act uniquely optimal vary significantly across those principles, I also show how the option of wagering for God can defeat any mixed strategy under two distinct interpretations of salvation. (shrink)

Many theists conceive of God as a perfect being, i.e., as that than which none greater is metaphysically possible. On this grand view of God, it seems plausible to think that such a supreme and maximally great being would not be subject to luck of any sort. Given the divine perfections, God is completely insulated from luck. However, I argue that the opposite is true: precisely because God is perfect, he is subject to a kind of luck called constitutive luck. (...) In this paper, first I provide an analysis of luck and then explain the concept of constitutive luck. I proceed to defend constitutive luck from charges of incoherence and examine a different approach to make sense of this luck. Furthermore, I distinguish between two kinds of constitutive luck and argue that even if God isn’t subject to one kind, evading the second kind is unsuccessful. I offer two ways that God is constitutively lucky and reach a surprising conclusion: a perfect being is the luckiest of all possible beings. (shrink)

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)

In the discourse on International Justice, traditional frameworks are deeply rooted in 'embodied metaphysics'—a perspective embedded in the tangible experiences of human existence. By contrasting the physical with the digital realms, I suggest that our current global justice systems are ill-equipped to address the complexities of the digital age. Utilizing the metaphor of water to highlight the often-unseen environment shaping justice theories and practices, I argue that International Justice, as conventionally understood, reflects the constraints akin to fish oblivious to the (...) water surrounding them. In digital spaces, individuals are no longer bound by principles of singularity and locality, and instead operate by principles of multiplicity and nonlocality. These metaphysical differences disrupt many theories of global justice assuming singularity and nonlocality. My aim is to encourage scholars and practitioners to 'see water'—to acknowledge and critically reassess the foundational assumptions underlying their theories and practices in an era of digital transformation. (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)

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

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.

El artículo expone el papel del otro y de lo otro en la hermenéutica de Gadamer a la luz de la idea de diálogo. Para comprender se requiere reconocer lo otro en su carácter de tú, asumir que no se tiene distancia frente a él y estar abierto a acoger lo dicho por él como una posible verdad. La compresión posee una estructura dialéctica que implica la cancelación de las propias expectativas y el acceso a un saber más abarcante. Aunque (...) la comprensión es histórica, en ella se muestra cada vez un aspecto de la cosa misma, que resulta de la interacción del yo y el tú en el curso de la conversación hermenéutica y que constituye una verdad común con caracteres análogos a los del saber de tipo práctico. [The paper exposes the role of the other in Gadamer’s hermeneutics in the light of the idea of dialogue. Understanding requires the recognition of the other as a thou, the acceptance of the lack of distance from him and the openness to embrace what is said by him as a possible truth. Understanding has a dialectical structure which implies the cancellation of one’s own expectations and the access to a more comprehensive knowledge. Even though every understanding is historical, it discloses an aspect of the thing itself, which results from the interaction of the I and the thou during the process of hermeneutical conversation and constitutes a common truth with analogous characteristics to practical reason.] . (shrink)

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)

A discussion of the ethics of stem cell research, and attempts to regulate it.

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)

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 paper deals with the mutations in Wittgenstein’s treatment of the notions of “generality” and of “singularity”, from his first philosophy, in the Tractatus Logico-Philosophicus, to his later mature philosophy represented by the Philosophical Investigations. As we shall see, Wittgenstein’s philosophical handling of the notion of “visual perception” plays a key role in those conceptual transformations.

Did we get Aquinas’ Epistemology right? St. Thomas is often interpreted according to Kantian principles, particularly in Transcendental Thomism. When this happens, it can appear as though Aquinas, too—along with Kant—had made the “turn to the subject”; as if Aquinas were no longer the Aristotelian “believer” who thinks nature is what it is but, instead, the Kantian “thinker” who holds that nature is what we think of it; as if St. Thomas, like Kant, had concluded that nature is intelligible not (...) only when we think of it, but because we think of it. After much struggle with this problem, the challenge seemed obvious to me: to show the radical difference between Aquinas and Kant. Kant had reasons to make his turn, his Copernican revolution. Could I explain those reasons, could I pinpoint the problem leading Kant to think in those terms? Could I show Aquinas facing the same problem and clearly taking a different direction in his proposed solution? That is what I have tried to do in this book. This book provides an interpretation of Aquinas’ agent intellect focusing on Summa Theologiae I, qq. 75-89, and proposing that the agent intellect is a metaphysical rather than a formal a priori of human understanding. A formal a priori is responsible for the intelligibility as content of the object of human understanding and is related to Kant’s epistemological views, whereas a metaphysical a priori is responsible for intelligibility as mode of being of this same object. We can find in Aquinas’ text many indications that the agent intellect is not productive of the intelligible object but is, rather, productive of the abstracted or intelligible mode of being of this object. This is because for Aquinas the universal as nature, which is the object of human understanding, is present in the things themselves but with a different mode of being. In this four-chapter book, Chapter 1 is intended to establish the fact which requires for Aquinas an agent intellect, and provides two very important principles: one is that the object of human understanding (the universal as nature) is present in the things themselves and, the other, that it is not in the things themselves with a mode of being which makes it available to the intellectual eye. These two principles lead us to the main point of Chapter 2, namely the distinction between the intelligible object and its intelligible mode of being. Now, because knowing is receptive of the intelligible object (Chapter 3), which is present in the things themselves (Chapter 1), the agent intellect is productive not of the object’s intelligible content, but of its abstracted or intelligible mode of being (Chapter 4). (shrink)

A menudo se asocia a Quine con los filósofos pragmatistas o al menos se le atribuye una posición consonante con el pragmatismo. En el presente ensayo examino la relación entre la obra de Quine y la de los pragmatistas clásicos: Peirce, James y Dewey. El recorrido por los escritos de Quine mostrará varias similitudes con la doctrina de los límites de la experiencia propuesta por James, y al mismo tiempo diferencias significativas con el naturalismo de Dewey y el pragmatismo de (...) Peirce. El balance de este recorrido es que aunque existen algunos elementos en común entre los pragmatistas clásicos y Quine,es imposible afirmar que haya existido un interés de parte de Quine de asumir como propias las tesis pragmatistas para desarrollarlas en direcciones novedosas. (shrink)

Vision is an important metaphor in ethical and political questions of knowledge. The feminist philosopher Donna Haraway points out the “perverse” nature of an intrusive, alienating, all-seeing vision (to which we might cry out “stop looking at me!”), but also encourages us to embrace the embodied nature of sight and its promises for genuinely situated knowledge. Current technologies of machine vision – surveillance cameras, drones (for war or recreation), iPhone cameras – are usually construed as instances of the former rather (...) than the latter, and for good reasons. However, although in no way attempting to diminish the real suffering these technologies have brought about in the world, I make the case for understanding technologies of computer vision as material instances of embodied seeing and situated knowing. Furthermore, borrowing from Iris Murdoch’s concept of moral vision, I suggest that these technologies direct our labor towards self-reflection in ethically significant ways. My approach draws upon paradigms in computer vision research, phenomenology, and feminist epistemology. Ultimately, this essay is an argument for directing more philosophical attention from merely criticizing technologies of vision as ethically deficient towards embracing them as complex, methodologically and epistemologically important objects. (shrink)

Review of the translation of Ludwig Wittgenstein book: Observações Filosóficas. São Paulo: Edições Loyola, 2005. Tradução (do inglês) por Adail Sobral e Maria Stela Gonçalves.

According to Molinism, logically prior to his creative decree, God knows via middle knowledge the truth value of the counterfactuals or conditionals of creaturely freedom (CFs) and thus what any possible person would do in any given circumstance. Critics of Molinism have pointed out that the Molinist God gets lucky that the CFs allow him to actualize either a world of his liking or even a good-enough world at all. In this paper, I advance and strengthen the popular critique in (...) two ways. First, I specify the kind of luck to which God is subject, which is circumstantial moral luck. Second, and more importantly, I argue that exposure to this luck is problematic because something external to God and beyond his control determines the degree of praiseworthiness he deserves in relevant possible worlds. My main contention is that divine subjection to circumstantial moral luck raises the theoretical costs of Molinism. (shrink)

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)

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.