We explore the complexity of Sacks’ Splitting Theorem in terms of the mind change functions associated with the members of the splits. We prove that, for any c.e. set A, there are low computably enumerable sets $A_0\sqcup A_1=A$ splitting A with $A_0$ and $A_1$ both totally $\omega ^2$ -c.a. in terms of the Downey–Greenberg hierarchy, and this result cannot be improved to totally $\omega $ -c.a. as shown in [9]. We also show that if cone avoidance is added then there (...) is no level below $\varepsilon _0$ which can be used to characterize the complexity of $A_1$ and $A_2$. (shrink)

We solve a longstanding question of Soare by showing that if ${\mathbf d}$ is a non-low $_2$ computably enumerable degree then ${\mathbf d}$ contains a c.e. set with no r-maximal c.e. superset.

Reseña del libro FLAKIN, Nathaniel. Martin Monath: A Jewish Resistance Fighter among Nazi Soldiers. London, Pluto Press, 2019.

Publisher's description: The Phenomenology of Religious Life presents the text of Heidegger's important 1920621 lectures on religion. First published in 1995 as volume 60 of the Gesamtausgabe, the work reveals a young Heidegger searching for the striking language that eventually formed the mature expression of his thought. The volume consists of the famous lecture course "Introduction to the Phenomenology of Religion," a course on "Augustine and Neoplatonism," and notes for a course on "The Philosophical Foundations of Medieval Mysticism" that was (...) never delivered. Heidegger's engagements with Aristotle, St. Paul, Augustine, and Luther give readers a sense of what phenomenology would come to mean in his later works. Here, Heidegger reveals an impressive display of theological knowledge, protecting Christian life experience from Greek philosophy and defending Paul against Nietzsche. The appearance of this first English translation marks a significant event in Heidegger scholarship and affords a unique look into his phenomenology. (shrink)

Some philosophers hold that trust grows fragile when people become too rational. They advocate a retreat from reason and a return to local, traditional values. Others hold that truly rational people are both trusting and trustworthy. Everything hinges on what we mean by 'reason' and 'rational'. If these are understood in an egocentric, instrumental fashion, then they are indeed incompatible with trust. With the help of game theory, Martin Hollis argues against that narrow definition and in favour of a (...) richer, deeper notion of reason founded on reciprocity and the pursuit of the common good. Within that framework he reconstructs the Enlightenment idea of citizens of the world, rationally encountering, and at the same time finding their identity in, their multiple commitments to communities both local and universal. (shrink)

"Fried and Polt's translation of Martin Heidegger's Being and Truth is a well-crafted and careful rendering of an important and demanding volume of the Complete Works."-Andrew Mitchell, Emory University In these lectures, delivered in 1933-1934 while he was Rector of the University of Freiburg and an active supporter of the National Socialist regime, Martin Heidegger addresses the history of metaphysics and the notion of truth from Heraclitus to Hegel. First published in German in 2001, these two lecture courses (...) offer a sustained encounter with Heidegger's thinking during a period when he attempted to give expression to his highest ambitions for a philosophy engaged with politics and the world. While the lectures are strongly nationalistic and celebrate the revolutionary spirit of the time, they also attack theories of racial supremacy in an attempt to stake out a distinctively Heideggerian understanding of what it means to be a people. This careful translation offers valuable insight into Heidegger's views on language, truth, animality, and life, as well as his political thought and activity. Gregory Fried is Professor and Chair of the Philosophy Department at Suffolk University. He is author of Heidegger's Polemos: From Being to Politics and editor of A Companion to Hedegger's Introduction to Metaphysics. Richard Polt is Professor and Chair of the Philosophy Department at Xavier University. He is author of The Emergency of Being: On Heidegger's Contributions to Philosophy and Heidegger: An Introduction. (shrink)

. This is thinking that is alive, always green.Ó ÑReview of Metaphysics ÒThis translation . . . enlarges our historical view of the probing advances in Heidegger's thought.Ó ÑInternational Studies in Philosophy This clear translation ...

Earlier in this century, many philosophers of science (for example, Rudolf Carnap) drew a fairly sharp distinction between theory and observation, between theoretical terms like 'mass' and 'electron', and observation terms like 'measures three meters in length' and 'is _2° Celsius'. By simply looking at our instruments we can ascertain what numbers our measurements yield. Creatures like mass are different: we determine mass by calculation; we never directly observe a mass. Nor an electron: this term is introduced in order to (...) explain what we observe. This (once standard) distinction between theory and observation was eventually found to be wanting. First, if the distinction holds, it is difficult to see what can characterize the relationship between theory :md observation. How can theoretical terms explain that which is itself in no way theorized? The second point leads out of the first: are not the instruments that provide us with observational material themselves creatures of theory? Is it really possible to have an observation language that is entirely barren of theory? The theory-Iadenness of observation languages is now an accept ed feature of the logic of science. Many regard such dependence of observation on theory as a virtue. If our instruments of observation do not derive their meaning from theories, whence comes that meaning? Surely - in science - we have nothing else but theories to tell us what to try to observe. (shrink)

In Groenendijk & Stokhof [1989] a system of dynamic predicate logic (DPL) was developed, as a compositional alternative for classical discourse representation theory (DRT ). DPL shares with DRT the restriction of being a first-order system. In the present paper, we are mainly concerned with overcoming this limitation. We shall define a dynamic semantics for a typed language with λ-abstraction which is compatible with the semantics DPL specifies for the language of first-order predicate logic. We shall propose to use this (...) new logical system as the semantic component of a Montague-style grammar (referred to as dynamic Montague grammar, DMG), which will enable us to extend the compositionality of DPL to the subsentential level. Furthermore, we shall extend this analysis also in this sense that we shall add new, dynamic interpretations for logical constants which in DPL were treated in a static fashion. This will substantially increase the descriptive coverage of DMG. (shrink)

Tanto la explicación de sentido de la modernidad como el lenguaje de la posmodernidad han rechazado la noción de presente intemporal conocida otrora por la filosofía. Aquí se quiere mostrar en qué sentido y por qué razón el novísimo pensamiento logotectónico permite recuperar aquella noción merced a una nueva distinción del presente.

Of course, although this view on meaning was the prevailing one for almost a century, many of the people who initiated the enterprise of logical semantics, including people like Frege and Wittgenstein, had an open eye for all that it did not catch. However, the logical means which Frege, Wittgenstein, Russell, and the generation that succeeded them, had at their disposal were those of classical mathematical logic and set-theory, and these indeed are not very suited for an analysis of other (...) aspects of meaning than those which the slogan covers. A real change in view then had to await the emergence of other concepts, which in due course became available mainly under the influence of developments in computer science and cognate disciplines such as artificial intelligence. And this is one of the reasons why it took almost a century before any serious and successful challenge of the view that meaning equals truthconditions from within logical semantics could emerge. (shrink)

Few words in both everyday parlance and theoretical discourse have been as rhapsodically defended or as fervently resisted as "experience." Yet, to date, there have been no comprehensive studies of how the concept of experience has evolved over time and why so many thinkers in so many different traditions have been compelled to understand it. _Songs of Experience _is a remarkable history of Western ideas about the nature of human experience written by one of our best-known intellectual historians. With its (...) sweeping historical reach and lucid comparative analysis—qualities that have made Martin Jay's previous books so distinctive and so successful—_Songs of Experience _explores Western discourse from the sixteenth century to the present, asking why the concept of experience has been such a magnet for controversy. Resisting any single overarching narrative, Jay discovers themes and patterns that transcend individuals and particular schools of thought and illuminate the entire spectrum of intellectual history. As he explores the manifold contexts for understanding experience—epistemological, religious, aesthetic, political, and historical—Jay engages an exceptionally broad range of European and American traditions and thinkers from the American pragmatists and British Marxist humanists to the Frankfurt School and the French poststructuralists, and he delves into the thought of individual philosophers as well, including Montaigne, Bacon, Locke, Hume and Kant, Oakeshott, Collingwood, and Ankersmit. Provocative, engaging, erudite, this key work will be an essential source for anyone who joins the ongoing debate about the material, linguistic, cultural, and theoretical meaning of "experience" in modern cultures. (shrink)

When one looks into the role of artificial languages in philosophy of language it seems appropriate to start with making a distinction between philosophy of language proper and formal semantics of natural language. Although the distinction between the two disciplines may not always be easy to make since there arguably exist substantial historical and systematic relationships between the two, it nevertheless pays to keep the two apart, at least initially, since the motivation commonly given for the use of artificial languages (...) in philosophy of language is often rather different from the one that drives the use of such languages in semantics. Of course, this difference in motivation should not blind us for the commonalities that exists between the two disciplines. Philosophy of language and formal semantics have a common history, and arguably also share some of their substance. Philosophy of language is by and large an outgrowth of work in the analytical tradition in philosophy in the first half of the twentieth century. Both ordinary language philosophy, with its emphasis on the description of actual language use, as well as the more logic-oriented and formally inclined school of logical positivism contributed to the definition of philosophy of language as a separate philosophical discipline, with its own set of problems and methods to solve them. Another major contributor to the establishment of philosophy of language as a distinct discipline has been modern linguistics, in particular generative grammar in the tradition of Chomsky that became the dominant paradigm in linguisticsin the fifties and sixties of the previous century. And as it happens, both the generative tradition of Chomsky and analytic philosophy in its formal and less formal guises have been important factors in the development of formal semantics as well. Thus, it should come as no surprise that the two have something in common. That the communalities go beyond a common ancestry, but are reflected in substance and methods as well, will be argued later on. However, be that as it may, it is still a good idea to keep philosophy of language and formal semantics separate, at least initially, since the role that is assigned to artificial languages and the ways in which these languages are employed in both does differ in a number of respects that are worth keeping in mind.. (shrink)

This “excellent translation” of Heidegger’s writings on Hegel shows an essential engagement between two of the foundational thinkers of phenomenology (Phenomenological Reviews). While Martin Heidegger’s writings on Hegel are notoriously difficult, this volume provides a clear and careful translation of two important texts—a treatise on negativity, and a penetrating reading of Hegel’s Phenomenology of Spirit. In these stimulating works, Heidegger relates his interpretation of Hegel to his own thought on the event, taking up themes developed in Contributions to Philosophy. (...) While many parts of the text are fragmentary in nature, these interpretations are considered some of the most significant as they bring Hegel into Heidegger’s philosophical trajectory. (shrink)

Linguistic interaction between two people is the fundamental form of communication, yet almost all research in language use focuses on isolated speakers and listeners. In this innovative work, Garrod and Pickering extend the scope of psycholinguistics beyond individuals by introducing communication as a social activity. Drawing on psychological, linguistic, philosophical and sociological research, they expand their theory that alignment across individuals is the basis of communication, through the model of a 'shared workspace account'. In this workspace, interlocutors are actors who (...) jointly manipulate and control the interaction and develop similar representations of both language and social context, in order to achieve communicative success. The book also explores dialogue within groups, technologies, as well as the role of culture more generally. Providing a new understanding of cognitive representation, this trailblazing work will be highly influential in the fields of linguistics, psychology and cognitive linguistics. (shrink)

In this paper, I shall defend externalism for the contents of perceptual experience. A perceptual experience has representational properties; it presents the world as being a certain way. A visual experience, for example, might present the world to a subject as containing a surface with a certain shape, lying at a certain distance, in a certain direction; perhaps a square with sides about 30 cm, lying about one metre in front of the subject, in a direction about 20 degrees to (...) the left of straight ahead. (shrink)

Michael Polanyi’s work has often been conflated with that of Thomas Kuhn. This article shows that although Polanyi and Kuhn both conceded the similarities in some aspects of their accounts of science, both were critical of the other’s position. The key to a correct understanding of the tensions between the authors and their views is to recognize the clash of worldviews within which their philosophies of science were constructed.

Christian Georg Martin offers an argumentative reconstruction of the whole work, reading it as a critical ontology, namely as the attempt to abstract from all presuppositions and to immanently unfold conceptual determinations characterizing ...

In these essays, written between 1909 and 1954 and first published as a collection in 1957, the eminent philosopher relates the "I-Thou" dialogue to such varied fields as religion, social thought, philosophy, myth, drama, literature, and art. Buber thus responds to the crises and challenges of the 20th century and enables the reader to follow his lifelong struggles toward "authentic existence.".

Frege hat in seinen Schriften zu den philosophischen Grundlagen der Logik eine eigenwillige Konzeption der Wahrheit skizziert, der zufolge das Wahre und das Falsche keine Eigenschaften von Sätzen oder Gedanken sind, sondern Gegenstände, die von Sätzen bezeichnet werden. In dem vorliegenden Sammelband werden zentrale Komponenten dieser Konzeption näher beleuchtet: die Thesen der Undefinierbarkeit der Wahrheit und der Redundanz des Wortes „wahr“, die Auffassung der Wahrheitswerte als Gegenstände, das so genannte slingshot-Argument, die Konzeption der Tatsachen als wahre Gedanken und die Bestimmung (...) der logischen Gesetze als Gesetze des Wahrseins. Mit Beiträgen von Joachim Bromand, Gottfried Gabriel, Martin Grajner, Dirk Greimann, Andreas Kemmerling, Ulrike Kleemeier, Michael Kober, Verena Mayer, Uwe Meixner, Marco Ruffino, Richard Schantz, Hans Sluga und Christian Thiel. (shrink)

This paper redirects some of the philosophical discussion of sexual objectification. Rather than contributing further to debates over what constitutes objectification and whether it is harmful, I argue that aesthetic experience is a useful tool for resisting objectification. Attending to our embodied experiences provides immediate evidence that we are subjects; aesthetically attending to that evidence is a way of valuing it. I consider the human body as an aesthetic site, then as an ethico-aesthetic site, and finally as a site of (...) resistance. In addition to deepening accounts of body aesthetic experience, this paper helps frame human bodies as integral to moral agency, rather than impediments to it. (shrink)