A emoção sempre foi definida como um estado afetivo que se contrapõe à cognição ou à atividade racional. Tal distinção é hoje radicalmente negada pelas pesquisas em neurociências. As emoções, stricto sensu, se expressam sob forma de manifestações intensas, abruptas, inesperadas. Convém, por isso, reconhecer que a emoção envolve uma experiência sensorial e uma dimensão comportamental ou expressiva representada pela resposta motora que ela suscita . Assim, as emoções comportariam sentimentos e/ou atitudes , cujas manifestações variam segundo a intensidade, as (...) circunstâncias e a natureza dos agentes desencadeadores. Dessa gama enorme de possibilidades depende a caracterização precisa dos estados mentais que tais sensações suscitam e as formas de conduta que elas engendram. A atitude emocional, todavia, nem sempre se distingue do comportamento voluntário, aquele guiado pela decisão do agente. Algumas emoções não somente desencadeiam certas formas de comportamento, como são modos apropriados de os indivíduos se adaptarem às situações vividas. É dessa interação que trata o nosso trabalho. (shrink)

Such contradictions arise “at the limits of thought” in the following sense: we have reason to set boundaries to certain conceptual processes, which, however, turn out to actually cross those boundaries. The boundaries cannot be crossed, yet they can, for they are crossed. For example, Kant regarded noumena as beyond the limit of the conceivable, yet he made judgments about them, so he did conceive of them. For another example, Russell’s theory of types cannot be expressed, yet he does express (...) it. And so on, from Aristotle’s notion of prime matter to Derrida’s différance. The boundaries that cannot be but are crossed may concern iteration, expression, cognition, or conception. In most cases, a single argument pattern is operative, according to Priest. He calls it the Inclosure Schema [=IS]. It is a contradiction-generating mechanism that works as follows: suppose we define a set Ω, on the basis of a condition φ ); suppose that Ω exists and that it has property ψ. Next, suppose we can define a function δ such that, for any subset x of Ω that has property ψ, we have both δ ∉ x and δ ∈ Ω. As Ω is a subset of itself and it has ψ by hypothesis, a contradiction follows: both δ ∈ Ω and δ ∉ Ω. The two sides of the contradiction—or perhaps the operations by which they are established—are called Closure and Transcendence. ). For example, take Burali Forti’s paradox that is greater than all members of On, and therefore not an ordinal). Here Ω = On, and δ is the function that assigns to x the least ordinal greater than all members of x is both an ordinal—δ ∈ Ω, “Closure”—and not a member of x ). The condition φ is just the property of being an ordinal. (shrink)

. David Chalmerss version of two-dimensional semantics is an attempt at setting up a unified semantic framework that would vindicate both the Fregean and the Kripkean semantic intuitions. I claim that there are three acceptable ways of carrying out such a project, and that Chalmerss theory does not coherently fit any of the three patterns. I suggest that the theory may be seen as pointing to the possibility of a double reading for many linguistic expressions (a double reading which, however, (...) is not easily identified with straightforward semantic ambiguity). (shrink)

Externalism about artifactual words requires that (a) members of an artifactual word’s extension share a common nature, i.e. a set of necessary features, and (b) that possession of such features determines the word’s extension independently of whether the linguistic community is aware of them (ignorance) or can accurately describe them (error). However, many common artifactual words appear to be so used that features that are universally shared among members of their extensions are hard to come by, and even fewer can (...) be plausibly regarded as necessary; morevoer, it is highly doubtful that a speaker could manage to refer to kind A while being utterly ignorant of the role the As play in the A-producing community, and it is no less doubtful that an artifactual word that was used to refer to certain objects would keep referring to them (and be regarded as having referred to them) once it has been shown that the associated description is utterly false of such objects, the reason being that we could easily make things that do fit the associated description. Against generalized externalism, it is suggested that artifactual words come in (at least) three different semantic varieties: a few have an externalist semantics, others have an internalist semantics, still others have neither but rather behave as “family names” in Wittgenstein’s sense. (shrink)

Putnam and others have argued that semantic externalism extends to artifactual kind words such as “pencil” or “doorstop”. I first show that, even with natural kinds, externalism applies to words for ground level kinds. The issue then arises of which categories of artifacts should be identified as kinds in the relevant, restricted sense. I argue that, though there are natural taxonomies of artifactual categories at least some of which have well-defined ground levels, even words for such kinds do not appear (...) to have externalist semantics, as they do not support ignorance or error arguments. Some think that membership to any kind is determined by objective features. Against this, I argue that the makers’ productive intentions are often crucial in selecting which pattern of features counts as constitutive of a kind. Though externalists may insist that membership to a kind is ultimately determined by sharing objective features, the resulting version of externalism can hardly be distinguished from internalism. (shrink)

Different notions of analysis have been both theorized and put to use in early analytic philosophy. Two of them stand out: connective analysis and analysis as paraphrase. The latter played a central role in the development of analytic philosophy from Frege to Quine and beyond. With the advent of formal semantics of natural language in the 1970s, paraphrase came to be characterizable as translation into a formal “target language”. While I claim that the method cannot achieve its original philosophical aims, (...) I insist that, in spite of them, it is far from being a theoretically empty operation and that it lives on in some contemporary philosophical enterprises. (shrink)

What's the relation between being a P and being called 'P', for example, between being a cat and being called 'cat'? Surely something might be a cat without being called 'cat'; indeed, cats as such might not be called 'cats'. If the word 'cat' disappeared from the language, the event would not entail the disappearence of cats. What about the converse implication? Does being called 'cat' entail being a cat? It would seem so. For suppose 'cat' refers to certain objects, (...) and let Moon be one such object. Consider the statement that Moon is a cat. The statement is true just in case Moon is one of the objects that 'cat' refers to, which she is. Hence, the statement is true, therefore Moon is a cat. Being among the objects that 'cat' refers to entails being a cat. However, it is one thing to say that 'cat' refers to certain objects, and (possibly) a different thing to say that certain objects are called 'cats'. Spiders are often called 'insects', yet 'insect' does not refer to spiders: it is not correct to call spiders 'insects'. "Being called" is often intended as a descriptive notion: whether something is, or is not called 'P' is just a fact that can be stated in terms of people's behavior or patterns of behavior. Reference, on the other hand, may not be descriptive in this sense. Philosophers have often been trying to characterize the quasi-technical notion of reference by suitably restricting or qualifying the everyday, descriptive notion of "being called". Success in such an enterprise would amount to showing that being called* 'P' -a suitably modified version of being called 'P'- entails being P. Whether the enterprise is bound to fail is not the topic of this article. Here, I would like to show that one such attempt did fail, whereas another, more recent attempt that would seem to be bound to fail for analogous reasons does not fail; or not for such reasons, anyway. A few decades ago, some philosophers believed that being called 'P' was (with some qualifications) a sufficient condition for being a P.. (shrink)

In this article I first sketch what I take to be two Quinean arguments for the continuity of philosophy with science. After examining Wittgenstein’s reasons for not accepting the arguments, I conclude that they are ineffective on Wittgenstein’s assumptions. Next, I ask three related questions: Where do Quine’s and Wittgenstein’s philosophical views essentially diverge? Did Wittgenstein have an argument against the continuity of science with philosophy? Did Wittgenstein believe until the end of his philosophical career that scientific results are philosophically (...) irrelevant? It will be seen that all three questions are related with Wittgenstein’s distinction between conceptual and factual issues. I conclude that the opposition between Quinean philosophy and Wittgensteinian philosophy is genuine. (shrink)

The connection between sense, verification, and mode of verification never entirely disappeared from Wittgenstein’s philosophy. However, there was a time – the years 1929– 1932 – when Wittgenstein upheld explicitly verificationist views: he identified a proposition’s meaning with the mode or method of its verification, and he said that to understand a proposition is to know how the proposition is verified. This has been regarded as puzzling, in view of the fact that the Tractatus is usually considered not to be (...) committed to verificationism; indeed, it is usually regarded as incompatible with verificationism. Several people have proposed to revise such a received view: Michael Wrigley (1989) has claimed that verificationism must be implicit in the Tractatus; and P. M.S. Hacker (1986) has argued that the Tractatus, though not verificationist, is not as distant from verificationism as it has been taken to be. In another paper (Marconi, forthcoming) I discuss their views. Here I will just notice that, even if one regards the Tractatus as implicitly verificationist, the problem remains of explaining why and how did Wittgenstein reach the explicitly – indeed, blatantly – verificationist outlook of the early Thirties. This is the first question I would like to try to answer in this paper. The second question is, why was such rampant verificationism short-lived? Or in other words, why was verificationism de-emphasized so that, although verificationist themes are undoubtedly present in the later Wittgenstein’s writings, the extreme formulations of the early Thirties tend to disappear after 1933? (shrink)

I discuss Paolo Casalegno's objections to my views about semantic normativity as presented in my book Lexical Competence (MIT Press, 1997) and in a later paper. I argue that, contrary to Casalegno's claim, the phenomenon of semantic deference can be accounted for without having to appeal to an “objective” notion of reference, i.e. to the view that words have the reference they have independently of whatever knowledge or ability is available to or within the linguistic community. Against both Casalegno and (...) Timothy Williamson, I argue that a semantic norm based on objective reference would be really inapplicable, even though a speaker might believe to be guided by such a norm. (shrink)

Je m’efforcerai de donner plus de poids aux doutes de Pascal Engel relatifs à deux affirmations de Timothy Williamson dans Philosophy of Philosophy: que les expériences de pensée philosophiques portent sur une possibilité métaphysique par opposition à une possibilité conceptuelle, et que le raisonnement contrefactuel joue un rôle crucial pour atteindre les conclusions modales pertinentes dans les arguments fondés sur des expériences de pensée. Dans le premier cas, je soutiendrai qu’à moins de comprendre la notion de conceptuel dans un sens (...) psychologique, il est difficile de saisir la différence entre des expériences de pensée qui « portent sur des concepts » ou possibilités conceptuelles et des expériences de pensée qui « portent sur des êtres réels » ou possibilités métaphysiques. Dans le second cas, je soutiendrai qu’il n’est pas clair que les contrefactuels sont des prémisses indispensables dans des arguments fondés sur des expériences de pensée ou que le raisonnement contrefactuel prend l’avantage sur le raisonnement déductif ordinaire pour atteindre des conclusions modales. (shrink)

In On Certainty, Wittgenstein addressed the issue of beliefs that are not to be argued for, either because any grounds we could produce are less certain than the belief they are supposed to ground, or because our interlocutors would not accept our reasons. However, he did not address the closely related issue of justifying a conclusion to interlocutors who do not see that it follows from premises they accept. In fact, Wittgenstein had discussed the issue in the Remarks on the (...) Foundations of Mathematics; his view had been that certain inferential practices are constitutive of our notions of thinking and inferring. I argue that his treatment of unfounded beliefs in On Certainty essentially replicates, mutatis mutandis, his treatment of basic logical inference. (shrink)

Fazendo parte de uma pesquisa mais abrangente e mais ambiciosa sobre a possibilidade de uma releitura do conceito wittgensteiniano de ‘sujeito da vontade’ a partir do complexo conceito de ‘prohairesis’ em Epiteto, o presente trabalho visa proceder a uma análise preliminar de ‘pessoa moral’ e de ‘dignidade humana’ tal como dados por algumas das observações dos Discursos. Para além de uma leitura do próprio Epiteto, nos serviremos igualmente dos paralelos traçados por Dragona- -Monachou entre o filósofo estoico e Wittgenstein e (...) das notas exegéticas de Stephens e Long relativamente à significação plural de ‘prohairesis’. Se para Epiteto cada um é tão somente a sua prohairesis, o que significa dizer que cada um é tão somente a sua própria decisão racional ou atitude – ou, em termos de Wittgenstein, a sua dignidade humana? A intenção deste texto é procurar por possíveis pistas que nos permitam responder a esta pergunta. (shrink)

This introduction is a short critical presentation of the topic and main arguments of Andrea Iacona’s book Logical Form. Furthermore, it summarizes the commentators’ views on two central issues: Iacona’s rejection of the uniqueness thesis, i.e. his claim that no single notion of logical form can be adequate to the tasks that logical form has been supposed to perform, and the relation between a sentence’s logical form and its truth conditions.

The claim that truth is mind dependent has some initial plausibility only if truth bearers are taken to be mind dependent entities such as beliefs or statements. Even on that assumption, however, the claim is not uncontroversial. If it is spelled out as the thesis that “in a world devoid of mind nothing would be true”, then everything depends on how the phrase ‘true in world w’ is interpreted. If ‘A is true in w’ is interpreted as ‘A is true (...) of w’ (i.e. ‘w satisfies A’s truth conditions’, the claim need not be true. If on the other hand it is interpreted as ‘A is true of w and exists in w’ then the claim is trivially true, though devoid of any antirealistic efficacy. Philosophers like Heidegger and Rorty, who hold that truth is mind dependent but reality is not, must regard such principles as “A if and only if it is true that A” as only contingently true, which may be a good reason to reject the mind dependence of truth anyway. (shrink)

Chapter VI discusses a few assumptions which underlie the proposed reconstruction of Hegel's procedures. It is shown that certain equivalents of such assumptions are either explicitly accepted by Hegel, or they are consequences of theses he subscribed to. Finally, it is suggested that some of these assumptions envisage a conception of language and philosophy which has an interesting parallel in Wittgenstein's later work. Such a conception sets philosophy sharply apart from the sciences, and deemphasizes the formation of contradictions. The general (...) relationship between vagueness and contradiction is briefly explored to show that some familiar contradiction-generating procedures can be seen to be based on vagueness of the relevant theoretical expressions. ;Chapter V deals with the Aufhebung. After an examination of Hegel's own theory of sublation, and an analysis of some textual examples, it is shown that some Aufhebung-procedures can be modelled by certain patterns of argument concerning simple algebraic structures. A few Hegelian concepts, such as "opposition," "unity," "passing over," "reflection," are partially explicated in the process. ;Chapter IV plays a pivotal role in the dissertation. It explains the generation of dialectical contradictions as stemming from syntactic and intensional indeterminacy of the theoretical terms. It is shown that Hegel's conceptual terms have no well-determined sense, so that their senses can be identified in different and possibly inconsistent ways. It is also shown that they can be made to play different syntactic roles, for no rigid determination of their syntactic function is assumed. This, again, may create contradictions. Both kinds of indeterminacy are related to Hegel's borrowing of his conceptual terms from a "natural" philosophical koine. ;Chapter III is an analysis of Hegel's language in the Logic. It tries to determine the grammatical and semantical status of Hegel's conceptual terms and to explicate the Hegelian use of the copula as occurring in certain typical sentential forms. ;The presence of the so-called "dialectical contradictions" is the most evident logico-linguistic peculiarity of Hegel's text. After a discussion of Hegel's theory of contradiction, and of some of its interpretations, it is argued that any satisfactory account of the dialectical method must explain the formation of contradictions on the basis of other logico-linguistic features of Hegel's text. ;Chapter II deals with a few such explanations which have been offered by modern interpreters of Hegel. Use of contemporary analytic concepts in the logical and linguistic analysis of Hegel's text is justified with reference to the Carnapian categories of "explication" and "rational reconstruction." ;The literature on Hegel's dialectic has made important contributions to an understanding of its nature both as a metaphysical theory of reality and as a philosophical attitude towards the human world. However, many recent interpreters agree that no satisfactory progress has been made in understanding dialectic as a method. This dissertation identifies the dialectical method as the specific form of Hegel's philosophical discourse, and tries to bring out its basic logico-linguistic features. The Science of Logic is chosen as the field of inquiry, because of its crucial position among Hegel's mature works. (shrink)

One of the most common strategies in philosophical dispute is that of accusing the opponent of begging the question, that is, of assuming or presupposing what is to be proved. Thus, it happens quite often that the credibility of a philosophical argument is infected by the suspicion of begging the question. In many cases it is an open question whether the suspicion is grounded, and the answer lurks somewhere in the dark of what the proponent of the argument does not (...) say. This is why it may take years, or even centuries, before the begging of the question is brought to light. But few philosophers would deny that once it is established that a certain argument begs the question, that argument has to be rejected without hesitation: question-begging arguments are bad arguments, hence one should not appeal to them. Logicians traditionally classify begging the question as a fallacy, that is, as a bad reasoning that seems good at first sight. The fallacy is known under the name of petitio principii. This paper originated in our dissatisfaction with definitions of petitio principii found here and there in logic textbooks. Although it is uncontroversial that there is something wrong with begging the question, it is not clear from those definitions what is wrong. (shrink)

Azorín se confiesa pequeño filósofo. Con discurso sencillo y diáfano contempla fenomenolgicamente los pequeños detalles para conocer la idea de las cosas. Le atrae la belleza, se preocupa por la vida, el paso del tiempo, la dimensión estética, afirmando la vida con intensa sensibilidad y el sentimiento de la naturaleza. Cita preferentemente a Montaigne, Schopenhauer y Nietzsche. Siente el pesimismo, la indolencia de la voluntad y la nada, que refleja en el coloquio de los canes.

A proof method for automation of reasoning in a paraconsistent logic, the calculus C1* of da Costa, is presented. The method is analytical, using a specially designed tableau system. Actually two tableau systems were created. A first one, with a small number of rules in order to be mathematically convenient, is used to prove the soundness and the completeness of the method. The other one, which is equivalent to the former, is a system of derived rules designed to enhance computational (...) efficiency. A prototype based on this second system was effectively implemented. (shrink)

The paper offers an account of how the meaning of the concept of “invention” and “inventorship” is not stable and predefined but rather constructed during patent disputes. In particular, I look at how that construction takes place in adversarial settings like the courts of law. I argue that key notions of intellectual property law like invention and inventorship are as constructed as technoscientific claims are in laboratories. Courts should thus be seen as sites of construction through processes framed by specific (...) discursive and evidentiary technologies like bureaucratic paperwork, literary technologies, historiographic accounts of inventorship, and models of artifacts and devices. I draw my examples from the British disputes of the Marconi Company concerning the patenting of wireless telegraph and radio communication technologies in the first half of the twentieth century. The paper tracks Marconi’s circulation of publications, models, historical reconstruction of inventions, and expert witnessing. It unravels the material, discursive, textual, and evidentiary constructions of legality. (shrink)

A non-monotonic logic, the Logic of Plausible Reasoning (LPR), capable of coping with the demands of what we call complex reasoning, is introduced. It is argued that creative complex reasoning is the way of reasoning required in many instances of scientific thought, professional practice and common life decision taking. For managing the simultaneous consideration of multiple scenarios inherent in these activities, two new modalities, weak and strong plausibility, are introduced as part of the Logic of Plausible Deduction (LPD), a deductive (...) logic specially designed to serve as the monotonic support for LPR. Axiomatics and semantics for LPD, together with a completeness proof, are provided. Once LPD has been given, LPR may be defined via a concept of extension over LPD. Although the construction of LPR extensions is first presented in standard style, for the sake of comparison with existing non-monotonic formalisms, alternative more elegant and intuitive ways for constructing non-monotonic LPR extensions are also given and proofs of their equivalence are presented. (shrink)

Con este artículo pretendemos esbozar los fundamentos onto-lógicos esenciales de la propuesta metafísica de Alain Badiou; así como identificar los nexos dialécticos imprescindibles para la elaboración de lo que podemos considerar una metafísica contemporánea de lo múltiple infinito –frente a las clásicas metafísicas dogmáticas de lo Uno y las filosofías de la finitud– que incorpora de un modo dialécticamente inclusivo la matemática de la teoría de conjuntos, en _L’être et l’événement_, y la lógica matematizada de la teoría de categorías, en (...) _Logiques des mondes_. Sin adentrarnos en los pormenores de los conceptos vehiculares necesarios para pensar los procedimientos de verdad de la propuesta de Badiou, veremos cómo las relaciones dialécticas que se establecen a nivel onto-lógico en el interior de esta nueva metafísica concentran toda la historicidad del pensamiento de las correlaciones clásicas ser/aparecer, o ser/ser-ahí, univocidad/equivocidad, objeto/relación, extrínseco/intrínseco, lógica binaria/lógica trascendental y matemática/lógica en el pensamiento filosófico de la relación dialéctica contemporánea entre la teoría de conjuntos y la teoría de categorías. (shrink)

En este artículo abordaremos la cuestión de los ‘puntos de vista’ desde la propuesta filosófica de Alain Badiou. Para ello, recurriremos especialmente a L’être et l’événement y a los últimos seminarios, destinados a elaborar el material para L’Immanence des vérités, y centraremos el interés en las orientaciones de pensamiento constructivista y genérica. De tal modo que asociaremos el constructivismo a la noción de ‘puntos de vista’ y ensayaremos una especie de alternativa a partir de los postulados de Badiou sobre la (...) orientación genérica. In this paper we will address the question of ‘points of view’ from the philosophical proposal of Alain Badiou. In order to do this, we will especially resort to L’être et l’événement and to the last seminars, aimed at elaborating the material for L’Immanence des vérités, and we will focus on constructivist and generic orientations of thought. In such a way that we will associate constructivism with the notion of ‘points of view’ and we will try to propose an alternative based on Badiou’s generic orientation postulates. (shrink)