La réflexion philosophique, dont l'ouverture à l'univers dans lequel nous nous découvrons - avec une acuité proportionnelle à un étonnement renouvelé - n'a pas de limites, n'en est que plus tributaire des sciences et des techniques, des arts et de multiples activités qui régissent plus ou moins fructueusement notre expérience. Or, au sein des sciences humaines, privilégiées pour éclairer une condition que nous ne saurions cesser d'interpréter, peu d'oeuvres du dernier siècle auront enrichi en le précisant notre être-au-monde, comme la (...) théorie linguistique de Gustave Guillaume, assez solitaire, et les recherches multiformes de Jean Piaget - où la psychologie de l'enfant a souvent occulté la visée épistémologique et son enracinement biologique (cf Biologie et connaissance, 1967) et ses prolongements pédagogiques, voire éthiques. Le Cinquantenaire et le Trentenaire de leur disparition appelaient un hommage d'autant plus impératif qu'ils sont restés marginaux ou ignorés dans les milieux philosophiques, malgré la centralité de leurs élucidations. Leur commune orientation génétique et structurale n'ayant suscité aucun échange, pendant la contemporanéité de publications d'un tiers de siècle (1923-1960), mesurer leur complémentarité s'impose d'autant plus. S'ils peuvent aider à repenser la condition humaine, c'est qu'ils auront contribué à dissiper le "mystère de la pensée". L'un cherchant à habiliter les caractères systématique et cinétique des langues, irremplaçables moyens de penser ; l'autre dans un vis-à-vis cognitif et opératoire de Freud, en relavant sur les plans épistémologique et logique, notamment, l'élan révolutionnaire de la seconde modernité, autour de l'évolutionnisme. Mais les thèmes majeurs du constructivisme, du schème et de la symbolisation - et plus largement du temps et du langage - auront sans doute aidé à spécifier les mutations autorisées par la révolution critique. Entre l'Instant du je parle et un décentrement exigible pratiquement (éthique) comme théoriquement (épistémique), c'est bien la condition humaine dans son ensemble qui est concernée. Si repenser cette Condition s'impose en permanence, il importe de ne pas manquer des oeuvres qui, par-delà toute mode, proposent à notre expérience des fondations résistant à d'inéluctables vicissitudes. (shrink)

Although Wilhelm Dilthey and Franz Brentano apparently were pursuing roughly the same objective—to offer a description of our mental functions and of their relations to objects—and both called their respective research programs ‘descriptive psychology’, they seem to have used the term to refer to two different methods of psychological research. In this article, I compare analyses of these differences. Against the reading of Orth but also against a possible application of recent relativist accounts of the epistemology of peer disagreement to (...) this case, I argue that their apparent shared objective is not enough to support an understanding of their views as two alternatives within a given historical or scientific context, or as a mutual peer disagreement. I show that the impression of a shared objective can be explained away as stemming from the influence of their teacher Adolf Trendelenburg, and I stress that the case of introspection strongly suggests that an account in terms of peer disagreement is not plausible. Finally, I conclude that the opposition between two traditions, Austrian philosophy and historicism, might be better suited to account for the dispute and its apparent common historical context. (shrink)

Corporate codes of ethics, which have spread in the last decades, have shown a limited ability to foster ethical behaviors. For instance, they have been criticized for relying too much on formal compliance, rather than taking into account sufficiently agents and their moral development, or promoting self-reflexive behaviors. We aim here at showing that a code of ethics in fact has meaning and enables ethical progress when it is interpreted and appropriated with practical wisdom. We explore a model that represents (...) an uncommon organizational code of ethics: the monastic Rule of St. Benedict, written in the sixth century and still used today. Our empirical study—conducted in several monasteries living under this rule—shows that organization members interpret this rule, both hermeneutically and ethically, to adapt it to situations. They also appropriate this rule as a way of life and treat it as a dynamic framework that helps them to follow their purpose within their organization. This exceptional code actually offers an alternative model for practicing codes of ethics, in a virtue-ethical manner, beyond mere compliance with the text. The way in which reflexive and active agents practice the code, both individually and collectively, shapes their organizational experience and fosters their moral development. (shrink)

Guillaume Collett questions to what extent we can locate Deleuze within the Lacanian School during the late-1960s, prior to Guattari. In so doing, he offers a new, integrated reading of Deleuze's The Logic of Sense by understanding it as a 'psychoanalysis of sense', and gives a new interpretation of Deleuze's conception of philosophy itself. The Psychoanalysis of Sense shows that Deleuze was not merely aware of the debates animating the Lacanian School during the 1960s: he sought to contribute to (...) them. Emphasising his appropriation of the work of post-Lacanian Serge Leclaire, Collett explains how Deleuze constructed a more singular and immanent theory of the linguistic structure of the unconscious - granting the erogenous body a larger structuring role. (shrink)

The Grand Challenges literature brings under its umbrella a wide variety of disjointed phenomena but runs the risk of reinventing the wheel as well as overlooking incremental progress and past work. To avert this, scholars need to (dis)connect (dis)similar issues, build on past research on these issues, and create opportunities for generalizability through theoretical examinations.

The development of phenomenology in nineteenth‐century German philosophy is that of a particular stream within the larger historical‐philosophical complex of Austro‐German philosophy. As the “grandfather of phenomenology” resp. the “disgusted grandfather of phenomenology,” but also as the key figure on the “Anglo‐Austrian Analytic Axis”, Brentano is at the source of the two main philosophical traditions in twentieth‐century philosophy. This chapter focuses mainly on his place in nineteenth‐century European philosophy and on the central themes and concepts in his philosophy that were (...) determinant in the development of the philosophy of his most gifted student: Edmund Husserl. Despite the variety of stances which Brentano expressed on ontology, metaphysics, and psychology over the course of his career, the five general principles remain central to his whole philosophy throughout: they have an important place in what could be called Brentano's philosophical worldview or system. By extension, they also are essential to his conception of phenomenology. (shrink)

Unlike in physics, the category of thought experiment is not very common in biology. At least there are no classic examples that are as important and as well-known as the most famous thought experiments in physics, such as Galileo’s, Maxwell’s or Einstein’s. The reasons for this are far from obvious; maybe it has to do with the fact that modern biology for the most part sees itself as a thoroughly empirical discipline that engages either in real natural history or in (...) experimenting on real organisms rather than fictive ones. While theoretical biology does exist and is recognized as part of biology, its role within biology appears to be more marginal than the role of theoretical physics within physics. It could be that this marginality of theory also affects thought experiments as sources of theoretical knowledge. Of course, none of this provides a sufficient reason for thinking that thought experiments are really unimportant in biology. It is quite possible that the common perception of this matter is wrong and that there are important theoretical considerations in biology, past or present, that deserve the title of thought experiment just as much as the standard examples from physics. Some such considerations may even be widely known and considered to be important, but were not recognized as thought experiments. In fact, as we shall see, there are reasons for thinking that what is arguably the single most important biological work ever, Charles Darwin’s On the Origin of Species, contains a number of thought experiments. There are also more recent examples both in evolutionary and non-evolutionary biology, as we will show. Part of the problem in identifying positive examples in the history of biology is the lack of agreement as to what exactly a thought experiment is. Even worse, there may not be more than a family resemblance that unifies this epistemic category. We take it that classical thought experiments show the following characteristics: They serve directly or indirectly in the non-empirical epistemic evaluation of theoretical propositions, explanations or hypotheses. Thought experiments somehow appeal to the imagination. They involve hypothetical scenarios, which may or may not be fictive. In other words, thought experiments suppose that certain states of affairs hold and then try to intuit what would happen in a world where these suppositions are true. We want to examine in the following sections if there are episodes in the history of biology that satisfy these criteria. As we will show, there are a few episodes that might satisfy all three of these criteria, and many more if the imagination criterion is dropped or understood in a lose sense. In any case, this criterion is somewhat vague in the first place, unless a specific account of the imagination is presupposed. There will also be issues as to what exactly “non-empirical” means. In general, for the sake of discussion we propose to understand the term “thought experiment” here in a broad rather than a narrow sense here. We would rather be guilty of having too wide a conception of thought experiment than of missing a whole range of really interesting examples. (shrink)

This conference was devoted to the 80 years of the Copenhagen Interpretation, and to the question of the relevance of the Copenhagen interpretation for the present understanding of quantum mechanics. It is in this framework that fundamental questions raised by quantum mechanics, especially in information theory, were discussed throughout the conference. As has become customary in our series of conference in Växjö, we were glad to welcome a fruitful assembly of theoretical physicists, experimentalists, mathematicians and even philosophers interested in the (...) foundations of probability and physics. The nature of quantum fluctuations---in the form of Stochastic Electrodynamics or in other approaches to stochastic quantum mechanics---was also a central topic discussed during the conference, especially during debates. We should also mention talks on the completeness or incompleteness of quantum mechanics; on macroscopic quantum systems; on Bell's inequality, entanglement and experiments on quantum nonlocality (and locality); on Bohmian mechanics; on the connection between quantum mechanics and general relativity; on quantum probability; on quantum computing, quantum teleportation and quantum cryptography technologies; and more generally on the mathematical formalism of quantum mechanics and on the philosophical problems raised by its interpretations. (shrink)

This Växjö conference was devoted to the reconsideration of quantum foundations. Due to increasing research in quantum information theory, especially on quantum computing and cryptography, many questions regarding the foundations of quantum mechanics, which have long been considered to be exclusively of philosophical interest, nowadays play an important role in theoretical and experimental quantum physics.

The first step of the construction of Nézondet's models of finite arithmetics which are counter-models to Erdös–Woods conjecture is to add to the natural numbers the non-standard numbers generated by one of them, using addition, multiplication and divisions by a natural factor allowed in an ultrapower construction. After a review of some properties of such a structure, we show that the choice of the ultrafilter can be managed, using just the Chinese remainder's theorem, so that a model as desired is (...) obtained as early as at the first time. (shrink)

Representing an epistemic situation involving several agents obviously depends on the modeling point of view one takes. We start by identifying the types of modeling points of view which are logically possible. We call the one traditionally followed by epistemic logic the perfect external approach, because there the modeler is assumed to be an omniscient and external observer of the epistemic situation. In the rest of the paper we focus on what we call the internal approach, where the modeler is (...) one of the agents involved in the situation. For this approach we propose and axiomatize a logical formalism based on epistemic logic. This leads us to formalize some intuitions about the internal approach and about its connections with the external ones. Finally, we show that our internal logic is decidable and PSPACE-complete. (shrink)

Résumé David Chalmers maintient que la réalité virtuelle est une véritable réalité. Une version de ce « réalisme virtuel » affirme que les entités virtuelles dépendent ontologiquement d'entités numériques réelles. Nous explorons ici cette suggestion, en proposant un nouveau modèle pour décrire la dépendance du virtuel à l’égard du numérique. En nous appuyant sur la théorie de la constitution de Lynne Rudder Baker, nous défendons que les objets virtuels sont constitués par des objets numériques, lorsque ceux-ci se trouvent dans certaines (...) circonstances favorables. Nous explorons les motivations et les implications de cette approche, que nous considérons comme une forme prometteuse de réalisme virtuel. (shrink)

Guillaume Fréchette | : Il est généralement admis dans la littérature analytique sur l’intuition que celle-ci est principalement, ou même fondamentalement, une attitude propositionnelle. Partant de là, elle est aussi souvent caractérisée comme une croyance que P, comme la formation d’une croyance sans inférence que P, comme une impression que P, comme une impression intellectuelle que P, comme l’attitude consistant à être poussé, mu par P. Dans tous les cas, la spécificité de l’intuition reposerait au moins en partie sur (...) les propriétés doxastiques qui la distingue d’autres attitudes propositionnelles, comme savoir que P ou douter que P.Cette caractérisation de l’intuition semble à première vue incommensurable avec le concept d’intuition discuté dans la tradition phénoménologique, où l’intuition est caractérisée comme ce type d’expérience qui rend les objets présents, et peut certes être caractérisée en termes d’attitude propositionnelle, mais ne l’est pas essentiellement.Dans ce qui suit, je soulève quelques problèmes auxquels fait face la conception de l’intuition comme attitude propositionnelle. Partant de là, j’aimerais suggérer qu’en amendant cette idée, on peut développer une théorie de l’intuition qui peut employer de manière fructueuse les ressources de la phénoménologie et de la philosophie analytique. Cette suggestion montre que l’incommensurabilité des conceptions analytiques et phénoménologiques de l’intuition est superficielle, plus superficielle que ne le laissent entendre ses défenseurs respectifs. | : It is generally acknowledged in the analytic literature on intuitions that these are generally, or even fundamentally, propositional attitudes. For this reason, intuitions are often characterized as beliefs that P, as seeming that P, as the intellectual seeming that P, or as the attitude of being pushed by P. In all cases, the specificity of intuitions would consist at least in part in the doxastic properties that distinguishes them from other propositional attitudes, such as knowing that P or doubting that P.At first glance, this characterization of intuitions seems incommensurable with the concept of intuition discussed in the phenomenological tradition, where intuition is characterized as the type of experience that make objects present to us. While intuitions in this sense may be characterized as propositional attitudes, it doesn’t imply that they fundamentally are propositional.In the following paper, I raise some problems which faces the conception of intuitions as propositional attitudes. I would suggest that amending this idea allows to develop a theory of intuition which can use fruitfully both the resources of phenomenology and analytic philosophy. As a consequence, the alleged incommensurability of analytical and phenomenological conceptions of intuitions appears to be more superficial than it is usually taken to be defenders of intuitions as propositional attitudes. (shrink)

A collection of essays on the approaches and applications of Deleuze's philosophy to the bodyUsing a variety of contemporary cultural, scientific and philosophical lines of enquiry, the contributors produce a truly multidisciplinary view of the Deleuzian body, inviting us to look afresh at art, movement and literature.The Deleuzian body is not necessarily a human body, but the lines of enquiry here all illuminate the idea of the human body and thinking about formation, origins and becoming in relation to power, creativity (...) and affect. (shrink)

Emotion Review, Volume 14, Issue 2, Page 161-163, April 2022. The role emotions play in the dynamics of cultural phenomena has long been neglected. The collection of articles recently published in Emotion Review provides an important first step into this necessary endeavor. In this commentary, we discuss this contribution by emphasizing the role epistemological parsimony should play in the future of this research agenda. The cultural behavior and emotions of chimpanzees is taken as reference.

. From the bankruptcy of relations to the reality of connections: language and semantics in Bradley and Bosanquet. British Journal for the History of Philosophy: Vol. 26, Special Issue: British Idealism: Language, Aesthetics and Emotions. Guest Editors: Colin Tyler and James Connelly, pp. 700-718.

In this paper, we examine Sextus Empiricus’ treatise Against the geometers. We first set this treatise in the overall context of the sceptic’s polemics against the liberal arts. After a discussion of Sextus’ attitude to the quadrivium, we discuss the structure, the sources and the target of the Against the geometers. It appears that Euclid is not Sextus’ source, and neither he, nor the professional geometers, seem to be Sextus’ main targets. Of course, Sextus never really makes clear his precise (...) target, but his attacks are rather directed against geometry as a means of modelling the physical world, thus ruining the support geometry was intended to bring to the physical part of dogmatic philosophy. (shrink)

This essay discusses an important early French response to the American Revolution, chapters 38-52 in Book 18 of Raynal and Diderot's Histoire des deux Indes (1780), and explores how this reponse was shaped by the influence of Montesquieu. In Raynal and Diderot's conception of political freedom, as in Montesquieu's, universalism is tempered by empiricism. Public opinion must never be ignored, local factors matter: the two philosophes praise the American revolutionaries for their wisdom in this respect. Clearly Montesquieuan in inspiration, the (...) American chapters of the Histoire des deux Indes constitute one of the most significant pre-revolutionary examples of moderate liberalism in France. (shrink)

Thinking through other minds encompasses new dimensions in computational psychiatry: social interaction and mutual sense-making. It questions the nature of psychiatric manifestations in light of recent data on social interaction in neuroscience. We propose the concept of “social physiology” in response to the call by the conceivers of TTOM for the renewal of computational psychiatry.

(2012). DEL-sequents for regression and epistemic planning. Journal of Applied Non-Classical Logics: Vol. 22, No. 4, pp. 337-367. doi: 10.1080/11663081.2012.736703.

L'étude de la réflexion en optique est souvent nommée catoptrique. Le phénomène qu’elle étudie suppose plusieurs choses. D’abord, une source lumineuse d’où émane le rayon incident. Ensuite, une surface sur laquelle il se réfléchit, souvent un miroir. Enfin, un rayon qu’on appelle le rayon réfléchi. Ce n’est pas un hasard si cette notion se trouve au cœur de nombreux ouvrages des philosophes du XVIIe comme du XVIIIe siècle, puisqu’elle est liée à la fois aux découvertes scientifiques de l’époq...

This paper introduces the category of b-frames as a new tool in the study of complete lattices. B-frames can be seen as a generalization of posets, which play an important role in the representation theory of Heyting algebras, but also in the study of complete Boolean algebras in forcing. This paper combines ideas from the two traditions in order to generalize some techniques and results to the wider context of complete lattices. In particular, we lift a representation theorem of Allwein (...) and MacCaull to a duality between complete lattices and b-frames, and we derive alternative characterizations of several classes of complete lattices from this duality. This framework is then used to obtain new results in the theory of complete Heyting algebras and the semantics of intuitionistic propositional logic. (shrink)

_A portrait of Martin Heidegger as a man and a philosopher_ In this biography of Martin Heidegger (1889–1976), now available in English, historian Guillaume Payen synthesizes the connections between the German philosopher’s life and work. Critically, but without polemics, he creates a portrait of Heidegger in his time, using all available sources—lectures, letters, and the notorious “black notebooks.” Payen chronicles Heidegger’s “changing destinies”: after the First World War, an uncompromising Catholicism gave way to a vigorous striving for a philosophical (...) revolution—fertile ground for National Socialism. The book reflects a life of light and shadow. Heidegger was a great philosopher and teacher who cultivated friendships and love affairs with Jews but also was an anti-Semitic nationalist who lamented the “Judaization of German intellectual life.”. (shrink)

Uncertainty is recognized as a key issue in water resources research, amongst other sciences. Discussions of uncertainty typically focus on tools and techniques applied within an analysis, e.g. uncertainty quantification and model validation. But uncertainty is also addressed outside the analysis, in writing scientific publications. The language that authors use conveys their perspective of the role of uncertainty when interpreting a claim —what we call here “framing” the uncertainty. This article promotes awareness of uncertainty framing in four ways. 1) It (...) proposes a typology of eighteen uncertainty frames, addressing five questions about uncertainty. 2) It describes the context in which uncertainty framing occurs. This is an interdisciplinary topic, involving philosophy of science, science studies, linguistics, rhetoric, and argumentation. 3) We analyze the use of uncertainty frames in a sample of 177 abstracts from the Water Resources Research journal in 2015. This helped develop and tentatively verify the typology, and provides a snapshot of current practice. 4) Provocative recommendations promote adjustments for a more influential, dynamic science. Current practice in uncertainty framing might be described as carefully-considered incremental science. In addition to uncertainty quantification and degree of belief (present in ~5% of abstracts), uncertainty is addressed by a combination of limiting scope, deferring to further work (~25%) and indicating evidence is sufficient (~40%) – or uncertainty is completely ignored (~8%). There is a need for public debate within our discipline to decide in what context different uncertainty frames are appropriate. Uncertainty framing cannot remain a hidden practice evaluated only by lone reviewers. (shrink)

Faced with the disenchantment and disengagement expressed by their employees, business leaders are considering ways of incorporating more benevolence into managerial practices. Nevertheless, ‘benevolence’—care and concern for the well-being of others—has not yet been studied in an organizational profit-focused context. In this paper, we seek to investigate the emergence and practice of benevolence with an eye on profit and performance. We begin by investigating the main ethical approaches to benevolence—virtue ethical, utilitarian, and deontological. Then, based on an empirical study, we (...) identify two distinct types of benevolence. On the one hand, formal benevolence is defined and monitored by the organizational processes and actions of leaders; it is understood by all concerned to be bounded by organizational performance. On the other hand, informal benevolence exists at the margin of these processes, in interpersonal and discretionary relationships. We set out to analyze these two types of benevolence and the complementarity between them. We also discuss to what extent they can be managed, teasing out some implications for managers and some potential avenues for further research. (shrink)

Ne serait-ce que par son titre, dont l’oxymore est d’emblée assumée (p.11) et dont les protagonistes sont associés d’une manière qui ne laisse de surprendre, l’ouvrage de Julien Boudon publié dans la collection « Les sens du droit » des éditions Dalloz, mériterait de retenir l’attention.Dans ce court opus, l’auteur entend, à travers un examen qui puise tout à la fois aux sources de l’histoire, de la philosophie, du droit, de la science politique, et qui emprunte à la fois au (...) style de la monog.. (shrink)

La biologie travaille sur des particuliers. De par son historicité, chaque entité biologique est unique. Nous devons pourtant les regrouper pour parvenir à en parler de manière générale. Nos classifications sont destinées à communiquer nos concepts, et ce faisant elles reflètent une intention. Comme nous sommes en science, nous préférons les procédures de regroupement aux procédures de division, lesquelles finissent toujours par isoler les particuliers. En systématique, science des classifications, la géométrie de nos concepts est celle d’une hiérarchie par emboîtement, (...) du plus général au plus particulier, plutôt qu’une hiérarchie par empilement, parce que les premières pratiquent l’inclusion tandis que les secondes pratiquent l’inclusion et l’exclusion. Les êtres biologiques sont traversés par une foule de ressemblances différentes, et la ressemblance globale, à vouloir les saisir toutes, n’en saisit rigoureusement aucune. Elle ne se distingue pas de la différence globale. Or, nous voulons travailler sur les partages, pas sur les différences, lesquelles finissent par isoler les entités. Ces partages, ce sont des attributs communs ou des propriétés partagées : c’est la ressemblance vue en mosaïque. Mais quel type de ressemblance est pris en compte? La ressemblance topologique est prioritaire, vient ensuite la ressemblance de forme et celle du processus de genèse. La ressemblance de fonction est trop trompeuse pour être prise en compte. Mais trompeuse au regard de quel but? Nous classons pour parler des origines de ce qui existe. La classification moderne des êtres vivants reflète leur généalogie passée, ou du moins ce que nous pouvons en reconstruire indirectement. Et pour cela, la ressemblance topologique est la plus efficace. (shrink)

"Contrairement à une idée reçue, Hegel n'est pas un penseur perdu dans des abstractions logiques. La folie, la mort et l'éducation sont au centre de la pensée du philosophe allemand et forment un ensemble cohérent, concourant à caractériser l'homme comme une nature en conflit entre une particularité figée et un universel auquel il lui faudrait s'élever. Les réflexions anthropologiques essaiment dans l'ensemble de sa pensée et contribuent à forger une réflexion stimulante qui, partant de l'homme comme être du possible, s'attache (...) à dégager les modalités de sa réalisation grâce à la technique et à la formation. En adoptant une perspective dynamique, la pensée de Hegel rencontre certains enjeux contemporains touchant à ce que l'homme pourrait être, en particulier les thèses du transhumanisme. Loin de trancher dogmatiquement en faveur ou en défaveur d'une anthropotechnique, elle nous offre certains réquisits normatifs et nous donne les éléments d'une éducation au possible reposant sur une culture de la décision. L'auteur dessine ainsi une voie hégélienne de réponse au posthumanisme."--Page 4 of cover. (shrink)

In this paper, I discuss the distribution and the interpretation of the temporal suffix -kue in Mbyá, a Guaraní language that is closely related to Paraguayan Guaraní. This suffix is attested both inside noun phrases and inside clauses. Interestingly, its nominal uses give rise to inferences that are unattested in its clausal uses. These inferences were first identified in Paraguayan Guaraní by Tonhauser, who called them the existence property and the change of state property. Tonhauser further argued that these properties (...) are built into the lexical entry of the nominal temporal marker -kue. By contrast, I argue that -kue denotes a relative past tense both in its nominal and clausal uses, and that the existence and change of state properties are pragmatic inferences that arise from the interaction of the literal meaning of -kue with general constraints on the interpretation of noun phrases, notably constraints on the topicality of the time of evaluation of noun phrases. This allows me to maintain a uniform analysis of -kue across its nominal uses and its clausal uses. The analysis of -kue in Mbyá is relevant to a number of current debates on the expression of tense crosslinguistically. Firstly, the existence of relative tenses has sometimes been called into question. Klein notably argues that relative tenses are actually combinations of tense with the perfect aspect. Others have argued that there exist true relative tenses in certain languages. I argue that facts of Mbyá support the latter view. Secondly, Klein famously defined tenses as relations between topic times and the time of utterance. I argue, on the other hand, that relative tenses only denote relations between times, and that the topicality or non-topicality of their temporal arguments depends on their context of use, including their syntactic environment. Thirdly, this paper contributes to debates on the nature and reality of nominal tenses The Oxford handbook of tense and aspect, 2012), by arguing that tense in Mbyá is a genuinely nominal category, in the sense that temporal functional projections are part of the extended projection of the noun phrase. (shrink)

After observing that the truth conditions of connectives of non–classical logics are generally defined in terms of formulas of first–order logic, we introduce ‘protologics’, a class of logics whose connectives are defined by arbitrary first–order formulas. Then, we introduce atomic and molecular logics, which are two subclasses of protologics that generalize our gaggle logics and which behave particularly well from a theoretical point of view. We also study and introduce a notion of equi-expressivity between two logics based on different classes (...) of models. We prove that, according to that notion, every pure predicate logic with \ variables and constants is as expressive as a predicate atomic logic, some sort of atomic logic. Then, we prove that the class of protologics is equally expressive as the class of molecular logics. That formally supports our claim that atomic and molecular logics are somehow ‘universal’. Finally, we identify a subclass of molecular logics that we call predicate molecular logics and which constitutes its representative core: every molecular logic is as expressive as a predicate molecular logic. (shrink)

Dynamic Epistemic Logic (DEL) deals with the representation and the study in a multi-agent setting of knowledge and belief change. It can express in a uniform way epistemic statements about: 1. what is true about an initial situation 2. what is true about an event occurring in this situation 3. what is true about the resulting situation after the event has occurred. We axiomatize within the DEL framework what we can infer about (iii) given (i) and (ii). Given three formulas (...) φ,φ' and φ" describing respectively (i), (ii) and (iii), we also show how to build a formula φ ? φ' which captures all the information which can be inferred about (iii) from φ and φ'. We show how our results extend to other modal logics than K. In our proofs and definitions, we resort to a large extent to the normal form formulas for modal logic originally introduced by Kit Fine. In a companion paper (Aucher, 2012), we axiomatize what we can infer about (ii) given (i) and (iii), and what we can infer about (i) given (ii) and (iii), and show how to build two formulas φ ? φ" and φ' ? φ" which capture respectively all the information which can be inferred about (ii) from φ and φ", and all the information which can be inferred about (i) from φ' and φ". (shrink)