Energy is a crucial concept within classical and quantum physics. An essential tool to quantify energy is the Hamiltonian. Here, we consider how to define a Hamiltonian in general probabilistic theories—a framework in which quantum theory is a special case. We list desiderata which the definition should meet. For 3-dimensional systems, we provide a fully-defined recipe which satisfies these desiderata. We discuss the higher dimensional case where some freedom of choice is left remaining. We apply the definition to example toy (...) theories, and discuss how the quantum notion of time evolution as a phase between energy eigenstates generalises to other theories. (shrink)

The black hole information problem provides important clues for trying to piece together a quantum theory of gravity. Discussions on this topic have generally assumed that in a consistent theory of gravity and quantum mechanics, quantum theory is unmodified. In this review, we discuss the black hole information problem in the context of generalisations of quantum theory. In this preliminary exploration, we examine black holes in the setting of generalised probabilistic theories, in which quantum theory and classical probability theory are (...) special cases. We are able to calculate the time it takes information to escape a black hole, assuming that information is preserved. In quantum mechanics, information should escape pure state black holes after half the Hawking photons have been emitted, but we find that this get’s modified in generalisations of quantum mechanics. Likewise the black-hole mirror result of Hayden and Preskill, that information from entangled black holes can escape quickly, also get’s modified. We find that although information exits the black hole as predicted by quantum theory, it is fairly generic that it fails to appear outside the black hole at this point—something impossible in quantum theory due to the no-hiding theorem. The information is neither inside the black hole, nor outside it, but is delocalised. (shrink)

A presente coletânea é resultado de cooperação de pesquisadores brasileiros e portugueses, envolvidos com a docência no ensino superior e a consequente formação continuada dos professores universitários. A frequência no ensino superior é vista como uma conquista social dos ideais democráticos modernos e teria trazido novos públicos aos bancos escolares, o que tornaria esse ensino uma realidade de maneira qualitativa distinta com a qual decisores políticos, gestores, professores e estudantes devem aprender a lidar. Essas preocupações pretenderam motivar e nortear os (...) temas abordados nesta obra. (shrink)

Reseña de la obra de Câmara Dantas, Pedro Luiz, O vaticano do deserto: história da Igreja Católica Palmariana. Belém/PA, RFB, 2021, 144 pp. ISBN: 978-65-5889-104-8.

The object of this t e xt is to present human rights as subjec t i ve rights, and therefore, as an appropriate fo r m of discourse in mode r n socie t y . Subject i v e rights are a discourse strat e gy through w hich ind i viduals h a ve lost contact with their companions in c i vil socie t y , and th e y f ind themsel v es isolate d , (...) in a relationship that e xists on l y with a f iction that the l a w calls "state". Citizens h a ve been stripped of the possibilities of addressing the other members of c i vil socie t y , and forced in the conflicts with them to go through special c i vil ser v ants w h o are in cha r ge of suppressing the conflict b y the use of force a g ainst some of the liti g ants. This discourse strat e gy ma k es the ind i vidual a citizen, and it tu r ns into a linguistic manner of being in the mode r n or bou r geois w orld. The strat e gy of subject i v e rights is w hat ma k es mode r n l a w modern. Human rights, for their pa r t, are all the e xpectations and aspirations of ind i viduals of a capitalist socie t y , that can on l y be mentioned in te r ms of "rights , " since it is this discourse that ma k es them into citizens. In this w a y , all human aspirations are co n v er ted - or can be co n v e r ted- into "rights", w hich is the peculiar linguistic manner that modernity o f fers to ind i viduals to talk about their aspirations. (shrink)

Empleando procedimientos de la lógica simbólica, se intenta contribuir a una mejor comprensión del ejercicio dialéctico llevado a cabo en el Parménides. La interpretación de las formas del ser y el no ser a partir de la oposición entre el objeto de conocimiento y el pensamiento acerca del mismo, abre la puerta a una manera original de enfocar el problema de la verdad en Platón. Puede resultar interesante, asimismo, la solución que se propone a la aporía planteada en Parménides 132b-c, (...) relativa a la confusión del pensamiento o el no ser con otras formas. (shrink)

O autor desta obra, Oscar de Figueiredo Lustosa, é doutor em História Social pela Universidade de São Paulo, escritor de várias obras com ênfase à pesquisa histórica da Igreja no Brasil e na América Latina. Por isso, sua formação acadêmica dá pressupostos legítimos para desenvolver a presente abordagem: o desenvolvimento histórico da catequese no contexto eclesial brasileiro. O texto está dividido em cinco capítulos e seu objetivo é percorrer a gênese e a evolução da catequese e da evangelização no (...) Brasil. (shrink)

Levando–se em conta os leitores do século XXI, ao debruçar-se sobre a participação da Igreja católica brasileira na preparação do Concílio Vaticano II, o presente estudo parte de três perguntas: a) o quê interessa saber sobre a participação brasileira? b) É este um tema relevante? c) Alguns brasileiros participação significativamente na fase preparatória? Para responder apropriadamente a essas questões os autores propõem um conceito diferente de “participação” na preparação do Vaticano II por parte do episcopado brasileiro. O artigo não foca (...) apenas a presença deste ou daquele bispo ou perito nas comissões do Concílio, mas propõe a idéia de que o mais importante foi a auto-preparação, que durante certo tempo permaneceu “latente” e posteriormente se organizou através de um Concílio com um episcopado jovem, com uma média de idade em torno de 54 anos e 11 de experiência como bispo. Por isso, conscientes dos problemas pastorais que a realidade do subdesenvolvimento punha à Igreja, e com uma incipiente experiência de participação colegial, desenvolvida na construção do Plano de Emergência, este episcopado não só vivenciou em profundidade o “evento” conciliar, como foi o primeiro a sair dele organizado para colocá-lo em prática. Daqui a relevância desta reconstrução. Palavras-chave: Helder Câmara. Plano de Emergência. Colegialidade. Vaticano II. Igreja Católica no BrasilThis article aims to show the contribution of the Brazilian Catholic Church in the preparation of the Second Vatican Council. To fulfill such purpose the present study focus its research in three basic questions: a) what is important to know about the Brazilian participation? b) Is this a relevant topic? C) Some Brazilians participate significantly in the preparatory phase? To respond appropriately to these issues the authors propose a different concept of "participation" in the preparation of Vatican II by the Brazilian episcopate. The article focuses not only the presence of this or that bishop or the expert commissions of the Council, but proposes the idea that the most important was the self-preparation, which for a time remained "latent" and later was organized by a council with a young bishop, with an average age around 11 and 54 years of experience as a bishop. Therefore, aware of the problems that the pastoral reality of underdevelopment put the Church, and with an incipient experience of participating high school, developed in the construction of the Emergency Plan, the bishops not only experienced in depth the "event" to reconcile, as was the first it held out to put it into practice. Key words: Helder Câmara. Emergency Plan. Collegiality. Vatican II. Catholic Church in Brazil. (shrink)

While Ç ´Ò¿ µ methods for parsing probabilistic context-free grammars (PCFGs) are well known, a tabular parsing framework for arbitrary PCFGs which allows for botton-up, topdown, and other parsing strategies, has not yet been provided. This paper presents such an algorithm, and shows its correctness and advantages over prior work. The paper finishes by bringing out the connections between the algorithm and work on hypergraphs, which permits us to extend the presented Viterbi (best parse) algorithm to an inside (total probability) (...) algorithm. (shrink)

This is a preprint version of my "Review of E. Husserl's Allgemeine Erkenntnistheorie (1902/03), Vorlesung published in History and Philosophy of Logic 24 (2003), 76-78. The published version should be consulted for all citations.

The title of this book is somewhat misleading. A more apt title would have been, "A Marxist Critique of Husserl’s Nullification of the Real World." Such a title would have made the central argument and underlying concern in the present discussion more explicit. The author is intent on a spirited refutation of Husserl’s phenomenology as a transcendental, phenomenological idealism. It is particularly this stage of Husserl’s phenomenological development, maintains Sang-Ki Kim, that effects a sacrifice of the real world. The belated (...) return to the life-world, characteristic of Husserl’s later thought, does not, according to the author, help matters much. Husserl’s analysis of the life-world continues to be informed by the anti-historical apriorism that defined his earlier program of phenomenological idealism. Husserl’s concept of the life-world thus remains a bloodless abstraction, bereft of any acknowledgement of the concrete, historical, naturalist-materialist basis that undergirds it. (shrink)

Volume V of Analecta Husserliana consists of papers and discussions at the Third International Conference held by the International Husserl and Phenomenological Research Society. Anna-Teresa Tymieniecka, who is the President of the Society, has edited the papers and discussions of this volume and has provided a keynote inaugural lecture in which the dominant and unifying themes of the Conference are delineated. The general title, which binds the papers and discussions in the volume into a thematic unity, is "The Crisis of (...) Culture." The sub-title, "Steps to Reopen the Phenomenological Investigation of Man," provides further clarification of the direction of questioning that is illustrated throughout. Both the diagnosis and cure for the crisis of contemporary culture is sought through ruminations on the procedures and goals of phenomenological analysis. Ms. Tymieniecka, however, makes it abundantly clear in her inaugural lecture that if phenomenology is to lead us to a comprehension of the concrete modalities of human life, with their irreducible value predicates, then it will need to proceed along different lines from those laid out by Husserl in his program of transcendental, intentional analysis. What is recommended is a shift of inquiry-standpoint, enabling one to recover the initial spontaneity of concrete, lived-experience. This shift of standpoint enjoins a substitution of creativity for constitution as the guiding thematic, and a move from logos to ethos as the proper dimension in which to search for the dynamics and meaning of human action. Creativity rather than constitution points to the primordial function of consciousness, and the appeal to ethos makes possible the retrieval of lived-experiences that antedate the apriori possibilities of theoretical intentionality. (shrink)

The philosophical press, in the United States as well as abroad, has not given the thought of the Polish philosopher, Roman Ingarden, the recognition that it rightly deserves. It is because of this state of affairs that Volume IV of Analecta Husserliana comes to us as a scholarly contribution in a time of need. The singular merit of this volume is that it not only makes available some noteworthy critical and constructive analyses by Ingarden but also offers a series of (...) systematic studies of various facets of Ingarden’s philosophy by his chief interpreters and critics. The first selection in Volume IV is part of the Oslo Lectures, given by Ingarden in 1967, and here made public for the first time in its original German transcription. In these very important lectures Ingarden distills the results of his many years of critical reflection on the possibilities and limits of Husserl’s program of phenomenological research. The general topic of these lectures is: "The Problem of Husserlian Reduction". However, as the discussion proceeds it is not only problems attendant to the celebrated reduction that come under critical review but indeed the whole gamut of Husserlian motifs from intentionality to inter-subjectivity. (shrink)

The philosophical press, in the United States as well as abroad, has not given the thought of the Polish philosopher, Roman Ingarden, the recognition that it rightly deserves. It is because of this state of affairs that Volume IV of Analecta Husserliana comes to us as a scholarly contribution in a time of need. The singular merit of this volume is that it not only makes available some noteworthy critical and constructive analyses by Ingarden but also offers a series of (...) systematic studies of various facets of Ingarden’s philosophy by his chief interpreters and critics. The first selection in Volume IV is part of the Oslo Lectures, given by Ingarden in 1967, and here made public for the first time in its original German transcription. In these very important lectures Ingarden distills the results of his many years of critical reflection on the possibilities and limits of Husserl’s program of phenomenological research. The general topic of these lectures is: "The Problem of Husserlian Reduction". However, as the discussion proceeds it is not only problems attendant to the celebrated reduction that come under critical review but indeed the whole gamut of Husserlian motifs from intentionality to inter-subjectivity. (shrink)

In this collection of fourteen essays, first published in 1943, Herbert Read extends and amplifies the points of view expressed in his successful pamphlet _To Hell with Culture_, which has been reprinted here. The ‘politics of the unpolitical’ are the politics of those who strive for human values and not for national or sectional interests. Herbert Read defines these values and demands their recognition as a solvent of social and cultural crises’, and looks forward to the future with constructive vision. (...) This book will be of interest to students of politics, history, and philosophy. (shrink)

Considering the difficulty of Heidegger’s work this short expository and critical study is worthy of note as being both readable and scholarly. It should prove very helpful to those who have already some acquaintance with the general lines of Heidegger’s philosophy.

The pivotal thesis of Cunningham’s critical discussion is that Husserl failed to realize that consciousness is essentially "language-using consciousness." The spread of argumentation throughout her analysis is designed to show that this failure on Husserl’s part resulted in a number of unhappy consequences. It occluded the primacy of the social context; it misconstrued what is at issue in the phenomenological transcendental and eidetic reductions; and it led to unwarranted claims for an apodictic foundation of science and metaphysics. The launching-pad for (...) Cunningham’s critique is Husserl’s Cartesian Meditations, of which she offers, in her own words, "a somewhat oblique commentary." This work by Husserl is selected because it illustrates most clearly the conflict between linguistic performance and the quest for certainty. Cunningham works out from this conflict, from time to time calling upon the later Wittgenstein to help her demonstrate the untenability of Husserl’s separation of language from intentional consciousness. After correcting this mistake by Husserl she then goes on to show how attentiveness to the language-using posture of consciousness is able to bridge the chasms between essence and existence, the transcendental and the transcendent, the ideal and the real—chasms which remained unbridged throughout Husserl’s intellectual development. (shrink)

The author notes that "it might strike some readers as mildly incredible that Nietzsche incorporated in his writings anything as staid and proper as an ontology or epistemology". At the same time he vigorously denies that there is anything staid about these aspects of Nietzsche’s thought. They do not qualify but underline its thoroughgoing "radicality." Nietzsche’s "theory of knowledge" stands up to scrutiny precisely because Nietzsche is not, as Heidegger and implicitly others would have it, the "last metaphysician.".