One of the most expected properties of a logical system is that it can be algebraizable, in the sense that an algebraic counterpart of the deductive machinery could be found. Since the inception of da Costa's paraconsistent calculi, an algebraic equivalent for such systems have been searched. It is known that these systems are non self-extensional (i.e., they do not satisfy the replacement property). More than this, they are not algebraizable in the sense of Blok-Pigozzi. The same negative results hold (...) for several systems of the hierarchy of paraconsistent logics known as Logics of Formal Inconsistency (LFIs). Because of this, these logics are uniquely characterized by semantics of non-deterministic kind. This paper offers a solution for two open problems in the domain of paraconsistency, in particular connected to algebraization of LFIs, by obtaining several LFIs weaker than C1, each of one is algebraizable in the standard Lindenbaum-Tarski's sense by a suitable variety of Boolean algebras extended with operators. This means that such LFIs satisfy the replacement property. The weakest LFI satisfying replacement presented here is called RmbC, which is obtained from the basic LFI called mbC. Some axiomatic extensions of RmbC are also studied, and in addition a neighborhood semantics is defined for such systems. It is shown that RmbC can be defined within the minimal bimodal non-normal logic E+E defined by the fusion of the non-normal modal logic E with itself. Finally, the framework is extended to first-order languages. RQmbC, the quantified extension of RmbC, is shown to be sound and complete w.r.t. BALFI semantics. (shrink)

There are two foundational, but not fully developed, ideas in paraconsistency, namely, the duality between paraconsistent and intuitionistic paradigms, and the introduction of logical operators that express meta-logical notions in the object language. The aim of this paper is to show how these two ideas can be adequately accomplished by the Logics of Formal Inconsistency (LFIs) and by the Logics of Formal Undeterminedness (LFUs). LFIs recover the validity of the principle of explosion in a paraconsistent scenario, while LFUs recover the (...) validity of the principle of excluded middle in a paracomplete scenario. We introduce definitions of duality between inference rules and connectives that allow comparing rules and connectives that belong to different logics. Two formal systems are studied, the logics mbC and mbD, that display the duality between paraconsistency and paracompleteness as a duality between inference rules added to a common core– in the case studied here, this common core is classical positive propositional logic (CPL + ). The logics mbC and mbD are equipped with recovery operators that restore classical logic for, respectively, consistent and determined propositions. These two logics are then combined obtaining a pair of logics of formal inconsistency and undeterminedness (LFIUs), namely, mbCD and mbCDE. The logic mbCDE exhibits some nice duality properties. Besides, it is simultaneously paraconsistent and paracomplete, and able to recover the principles of excluded middle and explosion at once. The last sections offer an algebraic account for such logics by adapting the swap-structures semantics framework of the LFIs the LFUs. This semantics highlights some subtle aspects of these logics, and allows us to prove decidability by means of finite non-deterministic matrices. (shrink)

Boolean-valued models of set theory were independently introduced by Scott, Solovay and Vopěnka in 1965, offering a natural and rich alternative for describing forcing. The original method was adapted by Takeuti, Titani, Kozawa and Ozawa to lattice-valued models of set theory. After this, Löwe and Tarafder proposed a class of algebras based on a certain kind of implication which satisfy several axioms of ZF. From this class, they found a specific 3-valued model called PS3 which satisfies all the axioms of (...) ZF, and can be expanded with a paraconsistent negation *, thus obtaining a paraconsistent model of ZF. The logic (PS3 ,*) coincides (up to language) with da Costa and D'Ottaviano logic J3, a 3-valued paraconsistent logic that have been proposed independently in the literature by several authors and with different motivations such as CluNs, LFI1 and MPT. We propose in this paper a family of algebraic models of ZFC based on LPT0, another linguistic variant of J3 introduced by us in 2016. The semantics of LPT0, as well as of its first-order version QLPT0, is given by twist structures defined over Boolean agebras. From this, it is possible to adapt the standard Boolean-valued models of (classical) ZFC to twist-valued models of an expansion of ZFC by adding a paraconsistent negation. We argue that the implication operator of LPT0 is more suitable for a paraconsistent set theory than the implication of PS3, since it allows for genuinely inconsistent sets w such that [(w = w)] = 1/2 . This implication is not a 'reasonable implication' as defined by Löwe and Tarafder. This suggests that 'reasonable implication algebras' are just one way to define a paraconsistent set theory. Our twist-valued models are adapted to provide a class of twist-valued models for (PS3,*), thus generalizing Löwe and Tarafder result. It is shown that they are in fact models of ZFC (not only of ZF). (shrink)

This paper reviews the central points and presents some recent developments of the epistemic approach to paraconsistency in terms of the preservation of evidence. Two formal systems are surveyed, the basic logic of evidence (BLE) and the logic of evidence and truth (LET J ), designed to deal, respectively, with evidence and with evidence and truth. While BLE is equivalent to Nelson’s logic N4, it has been conceived for a different purpose. Adequate valuation semantics that provide decidability are given for (...) both BLE and LET J . The meanings of the connectives of BLE and LET J , from the point of view of preservation of evidence, is explained with the aid of an inferential semantics. A formalization of the notion of evidence for BLE as proposed by M. Fitting is also reviewed here. As a novel result, the paper shows that LET J is semantically characterized through the so-called Fidel structures. Some opportunities for further research are also discussed. (shrink)

In this paper we propose a very general de nition of combination of logics by means of the concept of sheaves of logics. We first discuss some properties of this general definition and list some problems, as well as connections to related work. As applications of our abstract setting, we show that the notion of possible-translations semantics, introduced in previous papers by the first author, can be described in categorial terms. Possible-translations semantics constitute illustrative cases, since they provide a new (...) semantical account for abstract logical systems, particularly for many-valued and paraconsistent logics. (shrink)

Inchoate crime consists of acts that are regarded as crimes despite the fact that they are only partial or incomplete in some respect. This includes acts that do not succeed in physically harming the victim or are only indirectly related to such a result. Examples include attempts (as in attempted murder that does not eventuate in the killing of anyone), conspiracy (in which case the crime has only been planned, not yet acted out) and incitement (where the inciter does not (...) himself commit the crime he is urging others to undertake). The present paper attempts to analyze these inchoate crimes from a libertarian perspective, based on the non-aggression principle. (shrink)

This book argues that there is a joint in nature between seeing and thinking, perception, and cognition. Perception is constitutively iconic, nonconceptual, and nonpropositional, whereas cognition does not have these properties constitutively. The book does not appeal to “intuitions,” as is common in philosophy, but to empirical evidence, including experiments in neuroscience and psychology. The book argues that cognition affects perception, i.e., that perception is cognitively penetrable, but that this does not impugn the joint in nature. A key part of (...) the argument is that we perceive not only low-level properties like colors, shapes, and textures but also high-level properties such as faces and causation. Along the way, the book explains the difference between perception and perceptual memory, the differences between format and content, and whether perception is probabilistic despite our lack of awareness of probabilistic properties. The book argues for perceptual categories that are not concepts, that perception need not be singular, that perceptual attribution and perceptual discrimination are equally fundamental, and that basic features of the mind known as “core cognition” are not a third category in between perception and cognition. The chapter on consciousness leverages these results to argue against some of the most widely accepted theories of consciousness. Although only one chapter is about consciousness, much of the rest of the book repurposes work on consciousness to isolate the scientific basis of perception. (shrink)

One of the most important issues concerning the foundations ofconscious perception centerson thequestion of whether perceptual consciousness is rich or sparse. The overflow argument uses a form of ‘iconic memory’ toarguethatperceptual consciousnessisricher (i.e.,has a higher capacity) than cognitive access: when observing a complex scene we are conscious of more than we can report or think about. Recently, the overflow argumenthas been challenged both empirically and conceptually. This paper reviews the controversy, arguing that proponents of sparse perception are committed to the (...) postulation of (i) a peculiar kind of generic conscious representation that has no independent rationale and (ii) an unmotivated form of unconscious representation that in some cases conflicts with what we know about unconscious representation. (shrink)

The goal of this programmatic paper is to highlight a close connection between the core problem in the philosophy of medicine, i.e. the concept of health, and the core problem of the philosophy of mind, i.e. the concept of consciousness. I show when we look at these phenomena together, taking the evolutionary perspective of modern state-based behavioural and life-history theory used as the teleonomic tool to Darwinize the agent- and subject-side of organisms, we will be in a better position to (...) make sense of them both as natural phenomena. (shrink)

According to Conceptual Role Semantics, the meaning of a representation is the role of that representation in the cognitive life of the agent, e.g. in perception, thought and decision-making. It is an extension of the well known "use" theory of meaning, according to which the meaning of a word is its use in communication and more generally, in social interaction. CRS supplements external use by including the role of a symbol inside a computer or a brain. The uses appealed to (...) are not just actual, but also counterfactual: not only what effects a thought does have, but what effects it would have had if stimuli or other states had differed. The view has arisen separately in philosophy and in cognitive science. The source of the view is Wittgenstein and Sellars, but the source in contemporary philosophy is a series of papers by Harman and Field. Other proponents in philosophy have included Block, Horwich, Loar, McGinn and Peacocke. In cognitive science, they include Woods and Miller and Johnson-Laird. (shrink)

As scientific progress approaches the point where significant human enhancements could become reality, debates arise whether such technologies should be made available. This paper evaluates the widespread concern that human enhancements will inevitably accentuate existing inequality and analyzes whether prohibition is the optimal public policy to avoid this outcome. Beyond these empirical questions, this paper considers whether the inequality objection is a sound argument against the set of enhancements most threatening to equality, i.e., cognitive enhancements. In doing so, I shall (...) argue that cognitive enhancements can be embraced wholeheartedly, for three separate reasons. However, though the inequality objection does not sufficiently support the conclusion that cognitive enhancements should be prohibited, it raises several concerns for optimal policy design that shall be addressed here. (shrink)

When William James published Pragmatism, he gave it a subtitle: A New Name for Some Old Ways of Thinking. In this article, I argue that pragmatism is an epistemological method for articulating success in, and between, a plurality of practices, and that this articulation helped James develop radical empiricism. I contend that this pluralistic philosophical methodology is evident in James’s approach to philosophy of religion, and that this method is also exemplified in the work of one of James’s most famous (...) students, W.E.B. Du Bois, specifically in the closing chapter of The Souls of Black Folk, “Of the Sorrow Songs.” I argue that “Sorrow Songs” can be read as an epistemological text, and that once one identifies the epistemic standards of pragmatism and radical empiricism in the text, it’s possible to identify an implicit case for moderate fideism in “Sorrow Songs.” I contend that this case illuminates the pluralistic philosophical methodology James worked throughout his career to develop, and that the James-Du Bois approach to philosophy may even help locate the epistemic value of other religious practices, beyond the singing of hymns, and identify terrain mainstream philosophy has long neglected. (shrink)

In a recent special issue dedicated to Dani Rodrik’s (2015) influential monograph Economics Rules, Grüne-Yanoff and Marchionni (2018) raise a potentially damning problem for Rodrik’s suggestion that progress in economics should be understood and measured laterally, by a continuous expansion of new models. They argue that this could lead to an “embarrassment of riches”, i.e. the rapid expansion of our model library to such an extent that we become unable to choose between the available models, and thus needs to be (...) solved to make ‘model pluralism’ viable. Drawing on Veit’s (2019a) ‘model pluralism’ account, this paper argues that model pluralism as a thesis about the relationship between science and nature undermines the very idea of a general model selection framework for policy making. (shrink)

The essay aims at demonstrating that it is dangerous to try to reconstruct a philosophical doctrine taking into account solely or predominantly the analysis of vocabulary. This is particularly true of the philosophical doctrines of the ancients, who generally did not feel obliged to adopt a coherent and unambiguous technical terminology. Starting from the essay of F. Camera, Sui molteplici significati di hermeneia in Platone, which was published in 2004 and then re-edited in 2011 with few modifications but with a (...) different title, the author shows that the method of facing Plato’s hermeneutics through the ἑρμηνεύειν-words is a source of distortions and over-interpretations; that is, it causes excessive density and conceptual significance to be attributed to words used instead in their current meaning. One must remember, even if it should be well known to anyone who devotes himself to these themes, that not all words, expressions and concepts become philosophical entities only because they appear in the works of an author tagged “philosophy.”. (shrink)

The global COVID-19 pandemic has spotlighted several instances of churches violating state issued and scientifically recommended guidelines designed to keep populations healthy and to prevent the further spread of the disease. While these instances are minority responses to these orders, they nonetheless raise questions about the rationality of ecclesial belonging in response to the COVID-19 pandemic. In this article, I draw on the work of William James and W. E. B. Du Bois to articulate a conception of ecclesial belonging as (...) a social epistemological process engaging a complex, fluid multiplicity of knowers of various scales. I argue that, in this view, ecclesial rationality involves the construction of a concatenation of internal and external practices individual believers and groups can traverse so long as they consistently satisfy a plurality of desiderata. I suggest that what is irrational about religious-based defiance of COVID-19 guidelines is the church-sanctioned severance of internal from external practices. I suggest that this behavior is supported by a failure to grasp the demands of ecclesial rationality rather than embrace them, and that this conception of rationality may have been eroded by the value-neutral skepticism of secular rationality. (shrink)

Dobzhansky, Theodosius; Ruse, Michael; Pigliucci, Massimo; Teehan, John. Ética e evolução. Tradução de Ediovani Antônio Gaboardi, Iago Pereira da Silva, Maíra Bittencourt, Maria Irene Baggio, Matheus Adriano Ferreira Coelho, Miécimo Ribeiro Moreira Júnior, Paulo Marcos da Silva, Walter Valdevino Oliveira Silva. Editora do PPGFil-UFRRJ & Associação Brasileira de Filosofia e História da Biologia – ABFHIB, 2024. ISBN 978-65-01-19441-7 -/- Este livro digital apresenta a tradução de uma coletânea de artigos que exploram a interseção entre ética e evolução, com o (...) objetivo de mostrar como esses dois domínios se entrelaçam e se influenciam. Cada artigo representa uma contribuição importante para o debate contemporâneo sobre a ética evolutiva, abordando temas que vão desde a relação entre moralidade e evolução biológica até a influência da religião, sob uma ótica evolutiva, na formação dos princípios éticos. Reunimos aqui o trabalho de quatro pensadores de destaque nessa discussão: Theodosius Dobzhansky, Michael Ruse, Massimo Pigliucci e John Teehan. -/- Os artigos traduzidos nesta coletânea foram organizados cronologicamente, permitindo que o leitor possa ter uma visão abrangente da própria complexificação, não necessariamente linear, das discussões ao longo das últimas décadas. Os artigos elegidos também mostram como, desde os anos 1970 e até os anos 2020, a relação entre evolução, moralidade e aspectos culturais é um tópico de intensa discussão entre biólogos e filósofos. Para aprofundar o contexto intelectual em que os artigos foram produzidos, as traduções são precedidas de uma breve descrição das demais contribuições de seus autores. (shrink)

Eliminativism is a position most readily associated with the eliminative materialism of the Churchlands, denying that there are such things as propositional states. This position has created much controversy, despite the fact that intentionality has long been seen as perhaps the core problem for naturalistic philosophy. There is a more radical interpretation of eliminativism, however, denying not only mental states, such as beliefs and desires, but also intentionality (i.e., aboutness) on a global level. This position traces its contemporary origin back (...) to Quine, but has generally been assumed to undermine naturalism or, worse, to be incoherent by the majority of philosophers who maintain that there clearly are things or mental states that are about others. In a recent paper, Hutto and Satne (2015a) offer an update that tries to revive John Haugeland’s baseball analogy from his influential 1990 review paper The Intentionality All-Stars on the state of the game to argue that the failure of Neo-Cartesians, Neo- Behaviorists, and Neo-Pragmatists should urge us to make them work together to naturalize content and “win the game.” But Hutto and Satne misunderstand what the game is ultimately about. The goal of the Intentionality All-Stars is not to naturalize content against eliminativism but to defend a naturalist “thirdperson” view of the problem against first-person phenomenalists. For this goal, a naturalist defense of global content eliminativism would equally enable them to emerge victorious. Revisiting Haugeland, I will offer my own analysis of the current state of play to argue that global content eliminativism has not received sufficient attention and deserves a more prominent place in the debate than it currently occupies. (shrink)

The conception of a ‘law of nature’ is a human product. It was created to play a role in natural philosophy, in the Cartesian tradition. In light of this, philosophers and scientists must sort out what they mean by a law of nature before evaluating rival theories and approaches. If one’s conception of the laws of nature is yoked to metaphysical notions of truth and explanation, that connection must be made explicit and defended. If, on the other hand, one’s aim (...) is to disentangle laws from truth or from explanation, that must be stated and defended as well. If philosophers do not make such assumptions, intuitions, and methodological commitments clear, then it will be impossible to identify the source of disagreement in debates about the laws of nature. Are the conflicts rooted in disagreement about the conclusions reached, or do the background commitments of the combatants block any resolution to the dispute in principle or in practice? (shrink)

Despite their influence on later philosophers such as Hume, Malebranche's central arguments for occasionalism remain deeply puzzling. Both the famous ‘no necessary connection’ argument and what I call the epistemic argument include assumptions – e.g., that a true cause is logically necessarily connected to its effect – that seem unmotivated, even in their context. I argue that a proper understanding of late scholastic views lets us see why Malebranche would make this assumption. Both arguments turn on the claim that a (...) volition is the only candidate for a cause, because only a volition can include an effect as its intentional content. (shrink)

As democracias ocidentais contemporâneas caracterizam-se pelo consenso a respeito da defesa dos direitos individuais fundamentais. O princípio da igualdade, tanto em sua formulação jurídica quanto em sua expressão social, tem por objetivo fazer com que fatores como poder econômico, influência política, origem familiar e preferências pessoais não possam promover desigualdades que não possuem justificativa moral. O princípio da liberdade tem por objetivo garantir espaço para a autonomia e a livre expressão individual. O conflito entre esses dois princípios, como se sabe, (...) define o contexto tanto das conquistas e dos impasses dos regimes democráticos quanto o contexto do debate filosófico a respeito da fundamentação da democracia. -/- Minha tese é a de que a instauração do individualismo nas democracias ocidentais é o resultado de um longo processo de desenvolvimento histórico que estabeleceu a igualdade – e não a liberdade – como o princípio organizador fundamental da ordem social democrática. Essa reavaliação permite superar os impasses gerados por teorias que colocam a autonomia e a racionalidade como fundamento das sociedades democráticas, inflacionando, assim, o conceito de liberdade, restringindo a política a processos de deliberação que deveriam se aproximar de condições idealizadas que não encontram correspondência na prática social e, quase sempre, pressupondo definições para o que seria a natureza humana, a escolha racional ou uma verdadeira autenticidade ou esclarecimento que permitiria escapar de todos os tipos de determinações heterônomas. -/- Para indicar em que sentido proponho essa reavaliação, inicio retomando a obra de Alexis de Tocqueville (1805-1859). Proveniente de uma família aristocrata em plena época pós-revolucionária na França, Tocqueville analisa a formação dos Estados Unidos da América mostrando que, na instauração da democracia americana, o ideal de igualdade ocupa um lugar anterior ao ideal de liberdade não só historicamente, mas também na justificação e na prática do sistema democrático. Subverte-se, assim, tanto a leitura da modernidade enquanto tentativa de efetivar conjuntamente os ideais de igualdade e liberdade, quanto a leitura de que o traço essencial da modernidade seria a instauração de uma racionalidade que acabou tornando-se instrumental ou técnica. Na primeira metade do século XIX, com uma interpretação que evita o unilateralismo, Tocqueville constata que a característica principal das democracias é o fato de que os homens, colocados em situação de igualdade, isolados e entregues a si mesmos, são indivíduos frágeis que, desprovidos de tradições, só possuem a razão para tentar justificar as leis que devem se auto-impor. -/- Essa leitura tocquevilleana negativa da democracia moderna permite compreender fenômenos contemporâneos aparentemente tão incompatíveis quanto, por exemplo, o isolamento social e o amplo consenso em relação aos direitos humanos ou as instituições jurídicas como instância última de mediação dos conflitos sociais e a falência praticamente completa da lei e de quaisquer instrumentos de poder para lidar com questões humanas e, mais recentemente, tecnológicas. -/- O individualismo democrático é, fundamentalmente, a consequência da efetivação cada vez maior do ideal moderno de igualdade. A filosofia política precisa levar a sério o fato de que, ao mesmo tempo em que corrói o ideal de uma racionalidade autofundante, essa condição democrática abre espaço, como nunca antes na história humana, para a responsabilidade individual. Essa responsabilidade é que nos permite, enquanto seres limitados e contingentes, chegar mais perto do ideal moderno de autonomia e autodeterminação. (shrink)

One of the primary concerns in animal research is ensuring the welfare of laboratory animals. Modern views on animal welfare emphasize the role of animal sentience, i.e. the capacity to experience subjective states such as pleasure or suffering, as a central component of welfare. The increasing official recognition of animal sentience has had large effects on laboratory animal research. The Cambridge Declaration on Consciousness (Low et al., University of Cambridge, 2012) marked an official scientific recognition of the presence of sentience (...) in mammals, birds, and cephalopods. Animal sentience has furthermore been recognized in legislation in the European Union, UK, New Zealand and parts of Australia, with discussions underway in other parts of the world to follow suit. In this paper, we analyze this shift towards recognition of sentience in the regulation and practice in the treatment of laboratory animals and its effects on animal welfare and use. (shrink)

This is the report on the XVI BRAZILIAN LOGIC CONFERENCE (EBL 2011) held in Petrópolis, Rio de Janeiro, Brazil between May 9–13, 2011 published in The Bulletin of Symbolic Logic Volume 18, Number 1, March 2012. -/- The 16th Brazilian Logic Conference (EBL 2011) was held in Petro ́polis, from May 9th to 13th, 2011, at the Laboratório Nacional de Computação o Científica (LNCC). It was the sixteenth in a series of conferences that started in 1977 with the aim of (...) congregating logicians from Brazil and abroad, furthering interest in logic and its applications, stimulating cooperation, and contributing to the development of this branch of science. EBL 2011 included more than one-hundred and fifty participants, all of them belonging to prominent research institutes from Brazil and abroad, especially Latin America. The conference was sponsored by the Academia Brasileira de Ciências (ABC), the As- sociation for Symbolic Logic (ASL), Universidade Estadual de Campinas (UNICAMP), Centre for Logic, Epistemology and the History of Sciences (CLE), Laboratório Nacional de Computação o Científica (LNCC), Pontif ́ıcia Universidade Cato ́lica do Rio de Janeiro (PUC- Rio), Sociedade Brasileira de Lógica (SBL), and Universidade Federal Fluminense (UFF). Funding was provided by Conselho Nacional de Desenvolvimento Cient ́ıfico e Tecnolo ́ gico (CNPq), Fundac ̧a ̃o de Amparo `a Pesquisa do Estado de São Paulo (FAPESP), Fundação Euclides da Cunha (FEC), and Universidade Federal Fluminense (UFF). The members of the Scientific Committee were: Mário Folhadela Benevides (COPPE- UFRJ), Fa ́bio Bertato (CLE-IFCH-UNICAMP), Jean-Yves Béziau (UFRJ), Ricardo Bianconi (USP), Juliana Bueno-Soler (UFABC), Xavier Caicedo (Universidad de Los An- des), Walter Carnielli (CLE-IFCH-UNICAMP), Oswaldo Chateaubriand Filho (PUC-Rio), Marcelo Esteban Coniglio (CLE-IFCH-UNICAMP), Newton da Costa (UFSC, President), Antonio Carlos da Rocha Costa (UFRG), Alexandre Costa-Leite (UnB), I ́tala M. Loffredo D’Ottaviano (CLE-IFCH-UNICAMP), Marcelo Finger (USP), Edward Hermann Haeusler (PUC-Rio), Décio Krause (UFSC), João Marcos (UFRN), Ana Teresa de Castro Martins (UFC), Maria da Paz Nunes de Medeiros (UFRN), Francisco Miraglia (USP), Luiz Car- los Pereira (PUC-Rio and UFRJ), Elaine Pimentel (UFMG), and Samuel Gomes da Silva (UFBA). The members of the Organizing Committee were: Anderson de Araujo (UNICAMP), Walter Carnielli (CLE-IFCH-UNICAMP), Oswaldo Chateaubriand Filho (PUC-Rio, Co- chair), Marcelo Correa (UFF), Renata de Freitas (UFF), Edward Hermann Haeusler (PUC- RJ), Hugo Nobrega (COPPE-UFRJ), Luiz Carlos Pereira (PUC-Rio e IFCS/UFRJ), Leandro Suguitani (UNICAMP), Rafael Testa (UNICAMP), Leonardo Bruno Vana (UFF), and Petrucio Viana (UFF, Co-chair). (shrink)

A central debate in philosophy and neuroscience pertains to whether PFC activity plays an essential role in the neural basis of consciousness. Neuroimaging and electrophysiology studies have revealed that the contents of conscious perceptual experience can be successfully decoded from PFC activity, but these findings might be confounded by post- perceptual cognitive processes, such as thinking, reasoning, and decision-making, that are not necessary for con- sciousness. To clarify the involvement of the PFC in consciousness, we present a synthesis of research (...) that has used intracranial electrical stimulation (iES) for the causal modulation of neural activity in the human PFC. This research provides compelling evidence that iES of only certain prefrontal regions (i.e., orbitofrontal cortex and anterior cingu- late cortex) reliably perturbs conscious experience. Conversely, stimulation of anterolateral prefrontal sites, often con- sidered crucial in higher-order and global workspace theories of consciousness, seldom elicits any reportable alterations in consciousness. Furthermore, the wide variety of iES-elicited effects in the PFC (e.g., emotions, thoughts, and olfactory and visual hallucinations) exhibits no clear relation to the immediate environment. Therefore, there is no evidence for the kinds of alterations in ongoing perceptual experience that would be predicted by higher-order or global workspace theories. Nevertheless, effects in the orbitofrontal and anterior cingulate cortices suggest a specific role for these PFC subregions in supporting emotional aspects of conscious experience. Overall, this evidence presents a challenge for higher-order and global workspace theories, which commonly point to the PFC as the basis for con- scious perception based on correlative and possibly confounded information. (shrink)

EN In his “Logic, Language, and Knowledge” Chateaubriand denounces the tyranny of belief , but takes some positions on knowledge and justification which seem to be too exacting. The fact that Chateaubriand derives constraints on the notion of justification by a close parallel to the notion of proof makes it unnecessarily loaded with the individual, rather than with the collective perspective. His position seems to leave little room for common knowledge, collective knowledge and usual common-sense knowledge, and absolutely no room (...) for explaining how people take correct decisions based on apparently faulty notions of knowledge and justification. -/- PT Em “Logic, Language, and Knowledge” Chateaubriand denuncia a tirania da crença , mas toma posições sobre conhecimento e justificação que parecem demasiado exigentes. O fato de Chateaubriand derivar condições sobre a noção de justificação a partir de uma estreita analogia com a noção de prova torna a noção de justiticação desnecessariamente carregada com a perspectiva indivídual, em detrimento da perspectiva coletiva. Sua posição parece deixar pouco espaço para noções como conhecimento comum, conhecimento coletivo e senso comum, e absolutamente nenhum espaço para explicar como as pessoas tomam decisões corretas com base em noções aparentemente errôneas de conhecimento e de justificação. (shrink)

Block argues for a distinction between phenomenal consciousness [PC] and access consciousness [AC] on the basis of his ‘overflow’ argument. Some have thought that this distinction might limit the possibilities of studying consciousness, as it suggests the existence of conscious mental states whose contents can’t be reported. After distinguishing theoretically between PC and AC, I will summarise Block’s overflow argument for their factual distinction. Highlighting that Block makes two related but separate modal claims about the PC/AC distinction, (...) I will show that the arguments he offers at most support the weak claim that a subject S can have a mental state which is P-conscious but which isn’t A-conscious. But the assumptions on which his argument for the weak claim rest prevent any supporters of his argument from making the strong claim that an individual can have a mental state which is P-conscious but which can’t be A-conscious. And if the overflow argument can’t motivate this stronger claim then there’s no reason to think that any mental state which is P-conscious can’t be made A-conscious given the right circumstances. In which case, even if Block’s argument succeeds, there’s no reason to think that there are inherently inaccessible and thus unreportable conscious mental states. So fears about the limitations of the possibility of the study of consciousness due to the existence of such mental states on the basis of the overflow argument can be allayed. (shrink)

As proposições condicionais receberam atenção teórica concentrada, embora intermitente, desde a Antiguidade. A atenção durante últimos quarenta anos tem sido intensa. Nesse artigo, apresentaremos os principais desenvolvimentos da análise lógica acerca das proposições condicionais e discutiremos como elas desempenham papel central em muitas teorias filosóficas. Na primeira parte dessas observações introdutórias, mostraremos como os antigos, principalmente as escolas megárica e estoica, envolveram-se com a questão dos condicionais e quão importante isso foi para os posteriores desenvolvimentos da análise lógica dos condicionais (...) no medievo e na Idade Moderna. Por fim, apresentaremos, já na contemporaneidade, C. I. Lewis expondo sua teoria da implicação estrita em franca oposição à doutrina da implicação que ele julgava errada. Espera-se que este trabalho sirva como a apresentação panorâmica de um campo que em lógica ainda é muito frutífero e fecundo para aprofundamentos e novas ideias. (shrink)

In this chapter, one considers finance at its very foundations, namely, at the place where assumptions are being made about the ways to measure the two key ingredients of finance: risk and return. It is well known that returns for a large class of assets display a number of stylized facts that cannot be squared with the traditional views of 1960s financial economics (normality and continuity assumptions, i.e. Brownian representation of market dynamics). Despite the empirical counterevidence, normality and continuity assumptions (...) were part and parcel of financial theory and practice, embedded in all financial practices and beliefs. Our aim is to build on this puzzle for extracting some clues revealing the use of one research strategy in academic community, model tinkering defined as a particular research habit. We choose to focus on one specific moment of the scientific controversies in academic finance: the ‘leptokurtic crisis’ opened by Mandelbrot in 1962. The profoundness of the crisis came from the angle of the Mandelbrot’s attack: not only he emphasized an empirical inadequacy of the Brownian representation, but also he argued for an inadequate grounding of this representation. We give some insights in this crisis and display the model tinkering strategies of the financial academic community in the 1970s and the 1980s. (shrink)

La filosofía de la educación ocupa un lugar paradójico en el campo de los saberes. Diversas producciones teóricas - de filósofos y pedagogos - convergen en señalar este carácter problemático. Siendo un área temática propia de la filosofía, resulta un espacio en general poco disputado entre los filósofos, como si la educación no estuviera entre las grandes preocupaciones filosóficas de nuestro tiempo. Por el contrario, suelen ser pedagogos quienes llevan a cabo investigaciones y publicaciones en el área y, más aún, (...) quienes ofrecen la disciplina en universidades e institutos de formación. Por lo menos en la inmensa mayoría de las universidades de América Latina, filosofía de la educación, como disciplina, ya no pertenece a los Departamentos o Facultades de Filosofía sino a los de Ciencias de la Educación o Pedagogía. En filosofía de la educación, el “de” ha pasado de indicar materia y tema, aplicación de la filosofía, a señalar pertenencia a la educación. En los Congresos de Filosofía no suele siquiera conformarse un área de la materia. Con reticencias, algunas veces los filósofos admiten discutir cuestiones de didáctica de la filosofía. (shrink)

Conceptualism is the view that at least some perceptual representation is conceptual. This paper considers a prominent recent argument against Conceptualism due to Ned Block. Block’s argument appeals to patterns of color representation in infants, alleging that infants exhibit categorical perception of color while failing to deploy concepts of color categories. Accordingly, the perceptual representation of color categories in infancy must be non-conceptual. This argument is distinctive insofar as it threatens not only the view that all perception is (...) conceptual, but also views that restrict the Conceptualist thesis to perceptual categorization. However, I contend that it fails at two stages. Block’s arguments for the perceptual representation of color categories in infancy, and against color concept deployment in infancy, are unpersuasive. Thus, Block has not vanquished Conceptualism. I draw out implications for debates about the perception-cognition border and for the question of whether explicit categorization occurs in perception. (shrink)

This paper is my last word, in the present journal, in the debate I have been having with Walter Block on the subject of evictionism as an alleged libertarian “third way,” capable of transcending the familiar “pro-life” and “pro-choice” dichotomy. In this debate, I myself defended what might be regarded as a qualified “pro-life” position, while Block consistently argued that the mother is morally allowed to expel the fetus from her womb provided that no non-lethal methods of (...) its eviction are available. While my position articulated in this paper contains an element of what Block might consider a concession on my part—i.e., an explicit declaration that abstaining from lethal evictions of fetuses conceived as a result of rape is a libertarian duty, but only an imperfect one—I continue to regard the unqualified support of evictionism as indefensible on libertarian grounds. (shrink)

The nucleus accumbens orchestrates processes related to reward and pleasure, including the addictive consequences of repeated reward (e.g., drug addiction and compulsive gambling) and the accompanying feelings of craving and anhedonia. The neurotransmitters dopamine and endogenous opiates play interactive roles in these processes. They are released by natural rewards (i.e., food, water, sex, money, play, etc.) and are released or mimicked by drugs of abuse. Repeated drug use induces conditioned down-regulation of these neurotransmitters, thus causing painful suppression of everyday pleasure. (...) As with many spiritual traditions, Buddhism provides strong advice against the pursuit of worldly pleasures to attain the ‘‘good life.’’ In contrast, many forms of meditation give rise to an immense and abiding joy. Most of these practices involve ‘‘stilling the mind,’’ whereby all content-laden thought (e.g., fantasies, daydreams, plans) ceases, and the mind enters a state of openness, formlessness, clarity, and bliss. This can be explained by the Buddhist suggestion that almost all of our everyday thoughts are a form of addiction. It follows that if we turn off this internal ‘‘gossip of ego,’’ we will find relief from the biochemical dopamine/opiate down-regulation, which is, perhaps, the perpetual concomitant of our daily rumination. (shrink)

I show, in words of one block of sound, that, while those whose likes form a loop could stop some wealth pumps if they now did what they would like most based on what they thought they would do next, there are wealth pumps they could not stop in that way.

This paper approaches the current epistemological debate on peer disagreement from a neo-Pyrrhonian perspective, thus adopting a form of skepticism which is more radical than those discussed in the literature. It makes use of argumentative strategies found in ancient Pyrrhonism both to show that such a debate rests on problematic assumptions and to block some maneuvers intended to offer an efficacious way of settling a considerable number of peer disputes. The essay takes issue with three views held in the (...) peer disagreement debate: there is an objective fact of the matter about at least most controversial questions; we possess theory-neutral evidence bearing on those questions which grants us access to the truth of the matter; and many peer controversies are resolved by attending to which disputant has correctly evaluated the objective evidence. With respect to the first two views, it is argued that the belief in both objective facts and theory-neutral evidence is subject to fierce dispute, and should not therefore be taken for granted in the discussion of peer disagreement. As for the third view, it is argued that from either a first- or a third-person perspective, there seems to be epistemic symmetry between the disputants which makes it necessary to suspend judgment. (shrink)

Much of the literature from political psychology has focused on the negative traits that are positively associated with affective polarization—e.g., animus, arrogance, distrust, hostility, and outrage. Not as much attention has been focused on the positive traits that might be negatively associated with polarization. For instance, given that people who are intellectually humble display greater openness and less hostility towards conflicting viewpoints (Krumrei-Mancuso & Rouse, 2016; Hopkin et al., 2014; Porter & Schumann, 2018), one might reasonably expect them to be (...) less polarized. -/- We ran two studies designed to explore the relationship between various forms of humility and polarization. Our chief finding is that people who value humility are prone to what we are calling epistemic polarization—that is, judging the epistemic traits of contrapartisans negatively—which in turn plays a role in polarization more generally. Not only are contrapartisans deemed to have the wrong moral and political beliefs, they are also viewed as less humble and more arrogant, close-minded, and irrational. This makes matters even worse when it comes to the growing partisan divide. In light of our findings, we believe that the novel concept of epistemic polarization that we introduce is a promising target for further investigation. (shrink)

I present a formal ontological theory where the basic building blocks of the world can be either things or events. In any case, the result is a Parmenidean worldview where change is not a global property. What we understand by change manifests as asymmetries in the pattern of the world-lines that constitute 4-dimensional existents. I maintain that such a view is in accord with current scientific knowledge.

I offer a commentary and criticism of the work Physical time within human time by Gruber, R. P., Block, R. A., and Montemayor, C. (2022). Front. Psychol. 13:718505. doi: 10.3389/fpsyg.2022.718505. Issues in the philosophy of time and the brain construction of time are discussed.

The aim of this dissertation is to convince you that time passes. It is commonly held that a belief in time’s passage is in conflict with relativistic physics and that our phenomenology as of passage is not sufficient reason for us to believe in it. I argue that both of these views are false. Along the way I offer a typology and critique of the existing accounts of passage. I offer my own view of passage, the process view, which requires (...) that we be relationalists about time. I make the case that there is strong reason to endorse relationalism. -/- In Chapter 1, I outline the most common positions in temporal ontology (presentism, eternalism, growing block theory, and the moving spotlight view), which are each committed to two theses: an ontological thesis about what exists, and a second thesis about whether the world is static or dynamic. I argue that the ontological theses are either trivial, not meaningful, or beg the question. I then try to recast the ontological theses in terms of truthmaking, which I argue also fails to generate a substantive dispute. I ultimately argue that the best way to salvage the debate over temporal ontology is to understand it as a debate about the second theses, that is, about whether or not time passes. -/- In Chapter 2, I turn to trying to spell out what temporal passage is supposed to be. I give a typology of the existing accounts of passage in the literature, and give some critique of each. I then try to offer my own account of what passage is: passage is to be identified with change, which is to be understood, not as the standard ‘at-at change’, but in terms of a primitive which I call process. Finally, I note that my account of passage requires relationalism to get off the ground. -/- In Chapter 3, I ask whether we should be substantivalists or relationalists about time, independent of our views on passage. I begin with an overview of the historical debate, focusing heavily on Newton, Leibniz, and the 20th century turn to considering “spacetime” as one entity (rather than treating space and time as two separate entities). I give an overview of the ways in which substantivalism and relationalism are characterized in contemporary debate, and show that it is more difficult than it seems at first pass to parse out what substantivalism is supposed to be. I offer three plausible versions of substantivalism, and characterize relationalism as the denial of all three. I then provide a critical discussion of five major arguments for or against substantivalism, and conclude that there is strong reason to accept relationalism. -/- In Chapter 4, I turn to the question of whether or not we should take our phenomenology as of passage seriously. The dynamic theorist demands an error theory from the static theorist: how is it that we experience temporal passage if there is no such thing? The most common static theorist response to the demand is to say that our experiences as of passage should be considered illusory, either as a cognitive-perceptual illusion akin to illusions of apparent motion, or as a consequence of our (false) view of ourselves as enduring selves against a changing background. I show that these accounts fail because they end up presupposing dynamicity in their quest to show that reality is static, because illusions require dynamicity to get off the ground. I then turn to another common static theorist response to the demand, which is to argue that the phenomenal reality of passage cannot (or should not) tell us anything about the physical reality of passage. One version of this move appeals to the absence of temporal passage in the formulations of the laws of physics; I show that this reasoning relies on an incorrect identification of passage with a privileged property of presentness. Another version argues that because our phenomenology is notoriously subject to a variety of interfering conditions, it is unreliable as a basis for theorizing. I respond that we do not require complete reliability from our evidence in order to use it to build a view, either in science or in philosophy. I conclude that we must take our phenomenology seriously after all, and that it gives us good reason for thinking that temporal passage is a real feature of the world. -/- In Chapter 5, I summarize the work I have done and try to tie up some loose ends by exploring consequences for ontology in light of the process view. I finish with a discussion of what we should do when science and philosophy seem to conflict. (shrink)

Loyalty, by making us identify with others, takes us beyond the very limited self (roughly the self of the Hobbesian natural condition) that is involved in selfishness and that is usually involved when people consider that self-concern, that aspect of human nature that must be limited if we are to live peaceably, is the main stumbling block to morality. Loyalty can thus be thought of as a version of altruism, as an inclination to identify with others and to share (...) their good. That is to say, loyalty seems opposed to the troublesome aspects of self-concern. We would, nevertheless, be mistaken to conclude that it must simply be a good in people, something to be encouraged. The primary issue is: Which loyalties should be encouraged? There is no general truth about the value of loyalty as such. (shrink)

The topic of the paper is the role of assensus, and consequently of divine and human will, in Walter Chatton’s theory of prophecy (Reportatio super Sententias I, dd. 39-41). Starting from the question “how God knows the future contingents?”, the first step will be to consider Chatton’s analysis of Scotus’s voluntarism in the light of the concept of divine assensus, meaning as a model for the prophet’s will and, more generally, for the human wills. The paper will then focus (...) on the role of assensus in the act whereby which a truth is being revealed to the prophet; it is described as a sort of “induced” assent, where the will is bypassed and so, paradoxically, “unwilling”. Finally, the role of the will returns to be crucial on a third level, namely the viator’s assent to the prophetic statements, where assensus makes freedom of will possible, consistent with the divine foreknowledge, avoiding the danger of deterministic consequences. (shrink)

Collected essays consider points of affinity and friction between Walter Benjamin and Martin Heidegger. Despite being contemporaries, Walter Benjamin and Martin Heidegger never directly engaged with one another. Yet, Hannah Arendt, who knew both men, pointed out common ground between the two. Both were concerned with the destruction of metaphysics, the development of a new way of reading and understanding literature and art, and the formulation of radical theories about time and history. On the other hand, their life (...) trajectories and political commitments were radically different. In a 1930 letter, Benjamin told a friend that he had been reading Heidegger and that if the two were to engage with one another, “sparks will fly.” Acknowledging both their affinities and points of conflict, this volume stages that confrontation, focusing in particular on temporality, Romanticism, and politics in their work. (shrink)

There is a particular ressonance between the thinking of Walter Benjamin and that of the German jurist Carl Schmitt, including the fact that both analyse the 16th and 17th centuries in order to understand the 20th. Regarding this fact, the article attempts to clarify some themes that lead Schmitt’s work, i.e that of State of Exception, that of theologization of politics, the critique of parliamentarism as support of the Modern State, the tension between democracy and dictatorship, to explain how (...) the dialog between the two thinkers occurs, seeking thus for a better understanding of key works of Benjamin, specially The Origin of German Tragic Drama. (shrink)

This replies to Block 2019 (B19), which responds to Lester 2014 (L14). The main issues in the, varyingly sized, sections are as follows. 1 Further explanations of critical rationalism, the theory of liberty, and problems with the non-aggression principle. 2.1 The relationships among law, morality, and libertarianism. 2.2 The objective invasiveness of low-level radiation and that it is therefore an initiated imposition (albeit trivial) if someone inflicts it on non-consenting people. 2.3 The objective and subjective aspects of initiated impositions; (...) and how clashes can be resolved. 2.4 How liberty relates to risk and self-ownership. 2.5 Libertarian initial acquisition versus absolute property rights by labour-mixing. 2.6 Organisational note. 2.7 Libertarianism and mens rea. 2.8 Libertarian rectification versus lex-talionis doubling. 2.9 Indirectly clashing rights, self-preservation, trespasser-hiker, flagpole-grasper, and landmine-layer. 2.10 A logical point is not a moral point. 2.11 Pacifism and libertarianism. 3.1 A weak criticism of utilitarianism. 3.2 Hedonometers; approximate interpersonal comparisons of utility imply libertarianism; what a libertarian is; libertarian rankings. 4. Libertarian philosophy versus propertarian dogma. Coda: the need to take seriously the philosophical problems with propertarian-justificationist libertarianism. (shrink)

David Friedman posed a number of libertarian philosophical problems (Friedman 1989). This essay criticizes Walter Block’s Rothbardian responses (Block 2011) and compares them with J C Lester’s critical-rationalist, libertarian-theory responses (Lester [2000] 2012). The main issues are as follows. 1. Critical rationalism and how it applies to libertarianism. 2.1. How libertarianism is not inherently about law and is inherently about morals. 2.2. How liberty relates to property and can be maximized: carbon dioxide and radio waves. 2.3. Applying (...) the theory to flashlights. 2.4. Applying the theory to the probability of imposed risks. 2.5. “Homesteading” or initial acquisition. 2.6 What is “essential” for a “true libertarian.” 2.7. Crime and punishment. 2.8. Extent of punishment. 2.9. The libertarian response to a madman with a gun. 2.10. How contradictions in rights are possible. 2.11. The draft. 3.1. Utilitarian libertarianism and “nose counting”. 3.2. How interpersonal comparisons of utility are possible and utility monsters are not a threat. 3.3. Why it is not utilitarian in practice to kill an innocent prisoner to prevent a riot. 3.4. Why David Friedman should not be forced to give up one of his eyes. 3.5. How utilitarians can be libertarians. Conclusion: a proper theory of liberty combined with critical rationalism offers superior solutions to Friedman’s problems. Appendix: replies to two commentators. (shrink)

ABSTRACT This article focuses on the role that the concept of “presence of mind” (Geistesgegenwart) plays in Walter Benjamin’s thought, deepening lines of interpretation that are connected to other relevant concepts such as “attention” (Aufmerksamkeit) and “now-time” (Jetztzeit). It examines elements of Benjamin’s work that develop the philosophical importance of presence of mind, emphasizing its corporeal dimension and its aesthetic and critical relevance. The analysis covers fve lines of interpretation that intersect in different ways: (i) presence of mind is (...) a form of thought/action that should be cultivated as a way of dealing with the experience of shock; (ii) having presence of mind is an attitude that can be exercised; (iii) “seizing the day” involves the body and presupposes an experience of intensive time; (iv) the conceptual framework of presence of mind integrates elements related to play; and (v) by valuing the present, presence of mind implies a relationship between danger and a critical gesture – in Benjamin’s historical and political reflection, this gesture intertwines the individual and the collective dimensions. (shrink)

E-Government refers to the administration of Information and Communication Technologies (ICT) to the procedures and functions of the government with the objective of enhancing the transparency, efficiency and participation of the citizens. E-Government is tough systems that require distribution, protection of privacy and security and collapse of these could result in social and economic costs on a large scale. Many of the available e-government systems like electronic identity system of management (eIDs), websites are established at duplicated databases and servers. An (...) established validation and management system could face a single failure point and the system is prone to Distributed Denial of Service Attacks (DDoS), denial of service attacks (DoS), malware and other cyber attacks. The execution of a privacy preserving and a secure decentralized system is enabled by the block chain technology. Here any third-party organizations do not have any control over the transactions of the Government. With the help of block chain technology, new and existing data are encapsulated within ledger or blocks, which are evenly distributed through the network in an enduring and sustainable way. The privacy and security of information are improved with the help of block chain technology, where distribution and encryption of data are performed through the total network. This analytical paper maps out the analysis of the security in the e-government system, utilizing the block chain technology that provides privacy and security of information and thereby enhancing the trust among the public sector. Qualitative and theoretical analysis is made for the proposed topic and implications of privacy and security of the proposed system is made. (shrink)

P/A (Block's phenomenal/access) confounds a logical distinction with an empirical claim. Success of P/A in its logical role has almost no bearing on its plausibility as an empirical thesis (i.e., that two kinds of consciousness exist). The advantage of P/A over a single-consciousness assumption is unclear, but one of Block's analogies for P (liquid in a hydraulic computer) may be used to clarify the notion of consciousness as cognitive “hardware.”.