Colour has long been a source of fascination to both scientists and philosophers. In one sense, colours are in the mind of the beholder, in another sense they belong to the external world. Colours appear to lie on the boundary where we have divided the world into 'objective' and 'subjective' events. They represent, more than any other attribute of our visual experience, a place where both physical and mental properties are interwoven in an intimate and enigmatic way. -/- The last (...) few decades have brought fascinating changes in the way that we think about 'colour' and the role 'colour' plays in our perceptual architecture. In Colour Perception: Mind and the physical world, leading scholars from cognitive psychology, philosophy, neurophysiology, and computational vision provide an overview of the contemporary developments in our understanding of colours and of the relationship between the 'mental' and the 'physical'. With each chapter followed by critical commentaries, the volume presents a lively and accessible picture of the intellectual traditions which have shaped research into colour perception. -/- Written in a non-technical style and accessible to an interdisciplinary audience, the book will provide an invaluable resource for researchers in colour perception and the cognitive sciences. (shrink)

The focus of this book is on conceptual and philosophical issues of perception including the classic notion of unconscious inferences in perception. The book consists of contributions from a group of internationally renowned researchers who spent a year together as distinguised fellows at the German Centre for Advanced Study.

In these essays, appearing for the first time in English, Gadamer addresses practical questions about recent politics in Europe, about education and university reform, and about the role of poetry in the modern world. This book also includes a series of interviews that the editors conducted in 1986. Gadamer elaborates on his experiences in education and politics, touching on the collapse of the Weimar Republic, the early Frankfurt School, Heidegger and the Nazis, university life in East Germany, and the prospects (...) for Europe in the coming years. Hans-Georg Gadamer was probably Heidegger’s leading interpreter in Germany, and in the 1950s and 1960s he became the world’s leading exponent of hermeneutics. His hermeneutical theory explains how it is that ancient art and philosophy still speak to us today. His influential idea of the “fusion of horizons” also shows how it is that we understand what is remote form our own culture. (shrink)

Previous research indicates positive effects of a person’s attractiveness on evaluations of opposite-sex persons, but less positive or even negative effects of attractiveness on same-sex evaluations. These biases are consistent with social motives linked to mate search and intrasexual rivalry. In line with the hypothesis that such motives should not become operative until after puberty, 6- to 12-year-old participants (i.e., children) displayed no evidence for biased social evaluations based on other people’s attractiveness. In contrast, 13- to 19-year-old participants (i.e., adolescents) (...) displayed positive and negative attractiveness biases toward opposite- and same-sex targets, respectively. Moreover, these biases increased with the age—and thus the reproductive relevance—of the targets being evaluated. Findings corroborate the relevance of mating-related motives for social judgment and illustrate how such biases can grow during human development. At a broader conceptual level, this research demonstrates the utility of investigating proximate social judgment processes through the lens of adaptationist thinking. (shrink)

in: Compendium of Quantum Physics, ed. by F. Weinert, K. Hentschel, D. Greenberger, and B. Falkenburg (Springer 2008).

--Über Schellings Konstruktion des Christentums, von W. Becker.--Zur systematischen Differenz von Apriorität und Reinheit in Kants Lehre von den synthetischen Urteilen a priori, von K. Cramer.--Endlichkeit des Bewusstseins und absolulte Gewissheit bei Descartes, von H. Fahrenbach.--Objektivation und Designation, von W. Flach.--Über den spekulativen Anfang, von H.F. Fulda.--Vorgestalten der Reflexion, von H.-G. Gadamer.--Formalisierung und Formalismus von J. Glöckl.--Naturzweck und Wesenbegriff, von E. Heintel.--Fichtes ursprüngliche Einsicht, von D. Heinrich.--Zur Präsenz der transzendentalen Differenz in der dialektischen Vernunft, von W. Marx.--Zum Verhältnis von Faktizität (...) und Reflexion in der Transzendent alphilosophie, von H. Radermacher.--Beziehung und Beziehungsloses (Absolutes) von J.J. Schaaf.--Ist Metaphysik des Transzendenten möglich? von H. Wagner.--Vernunft als Kanon, Organon und Kathartikon des allgemeinen Verstandes, von R. Wiehl.--Gestaltwelt, von G. Wolandt. (shrink)

We introduce 0• as a sharp for an inner model with a proper class of strong cardinals. We prove the existence of the core model K in the theory “ does not exist”. Combined with work of Woodin, Steel, and earlier work of the author, this provides the last step for determining the exact consistency strength of the assumption in the statement of the 12th Delfino problem pp. 221–224)).

We show that weakly compact cardinals are the smallest large cardinals k where k+ < k+ is impossible provided 0# does not exist. We also show that if k+Kc < k+ for some k being weakly compact , then there is a transitive set M with M ⊨ ZFC + “there is a strong cardinal”.

We show that weakly compact cardinals are the smallest large cardinals k where k+ < k+ is impossible provided 0# does not exist. We also show that if k+Kc < k+ for some k being weakly compact , then there is a transitive set M with M ⊨ ZFC + “there is a strong cardinal”.

Suppose that there is no transitive model of ZFC + there is a strong cardinal, and let K denote the core model. It is shown that if $\delta$ has the tree property then $\delta^{+K} = \delta^+$ and $\delta$ is weakly compact in K.

We introduce a restricted second-order logic $\textrm{SO}^{\textit{plog}}$ for finite structures where second-order quantification ranges over relations of size at most poly-logarithmic in the size of the structure. We demonstrate the relevance of this logic and complexity class by several problems in database theory. We then prove a Fagin’s style theorem showing that the Boolean queries which can be expressed in the existential fragment of $\textrm{SO}^{\textit{plog}}$ correspond exactly to the class of decision problems that can be computed by a non-deterministic Turing (...) machine with random access to the input in time $O^k)$ for some $k \ge 0$, i.e. to the class of problems computable in non-deterministic poly-logarithmic time. It should be noted that unlike Fagin’s theorem which proves that the existential fragment of second-order logic captures NP over arbitrary finite structures, our result only holds over ordered finite structures, since $\textrm{SO}^{\textit{plog}}$ is too weak as to define a total order of the domain. Nevertheless, $\textrm{SO}^{\textit{plog}}$ provides natural levels of expressibility within poly-logarithmic space in a way which is closely related to how second-order logic provides natural levels of expressibility within polynomial space. Indeed, we show an exact correspondence between the quantifier prefix classes of $\textrm{SO}^{\textit{plog}}$ and the levels of the non-deterministic poly-logarithmic time hierarchy, analogous to the correspondence between the quantifier prefix classes of second-order logic and the polynomial-time hierarchy. Our work closely relates to the constant depth quasipolynomial size AND/OR circuits and corresponding restricted second-order logic defined by David A. Mix Barrington in 1992. We explore this relationship in detail. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 127 les Paiens de leurs t6nebres,... de les fortifier de telle sorte contre les pr~jugez & contre les erreurs populaires qu'ils fussent incapables d'y tomber. Again, we learn that Bayle says "we do not know if a substance is by nature spiritual or corporeal, nor if the soul is immortal" with references to "Pyrrhon, B" and "Charron, O" (p. 112). Whatever Professor Mason means about substance, it (...) is not contained as far as I can see in "Pyrrhon, B"; and the point in "Charron, O" is that there is no irrefutable proof of the immortality of the soul. 2Professor Mason is following Voltaire's example more thanBayle's when he attributes to an author implications or attitudes not clearly expressed in the original. This is not to say that his conclusions are totally invalidated; on the contrary, they stand up despite his unreliability on Bayle, for his principal concern is Voltaire's reactions to the Scholar of Rotterdam. Apart from these reservations, it is good to have so important and so complicated a subject so compactly documented. CRAm B. BRVS~ Columbia University Das medizinische Weltbild des Paracelsus. Seine Zusammenhiinge mit Neuplatonismus und Gnosis. By Waiter Pagel. (Wiesbaden: Franz Steiner Verlag, 1962. "Kosmosophie", Forschungen und Texte zur Geschichte des Weltbildes, der Naturphilosophie, der Mystik und des Spiritualismus vom Sp~tmittelalter bis zur Romantik, ed. by K. Goldammer, Vol. I. Pp. xvi ~- 160. DM 24.) The new monograph series "Kosmosophie" couId not have been introduced more excellently than by Walter Pagel's work on Paracelsus which supplements and extends his earlier study Paracelsus, An Introduction to Philosophical Medicine in the Era of the Renaissance (Basel & New York: 1958). The new series is devoted to studies in the history of science, exploring the old traditions of a "sophic" understanding of the cosmos which always existed side by side with a "logical" one, i.e., the heritage from ancient mysticism, gnosticism, alchemy, and metaphysical speculation which so "disgracefully" characterizes the beginnings of modern science. In this book, Pagel tries to locate the great physician and philosopher Theophrastus of Hohenheim called Paracelsus (1493-1541) within the history of science at that turning point between the Middle Ages and the Renaissance and to understand him on the basis of the specific relationship of inheriting and modifying the traditions of neoplatonie and gnostic thought in his writings. After an introductory chapter about Paracelsus's position in the history of medicine and in contemporary times, the author investigates the neoplatonic and gnostic sources and presuppositions for the medical-physical world-view of Paracelsus. It should have been pointed out more clearly in this chapter, however, that the study of gnosticism and its effect upon the thinking of the later Hellenism is still in its beginning stages. He describes, then, Paracelsus's world of ideas as it is to be seen in the light of these neoplatonic and gnostic traditions: the doctrines of the invisible spiritual world, the astral powers, the astral body, dualism of sex, the two kinds of fire, the Logoi, the elements, primordial matter, etc. In each case, possible connections with the Hermetic writings, alchemy, gnosticism, neoplatonism, and their transmission through mysticism, cabbala, and the neoplatonic philosophers of the Renaissance (especially Marsilius Ficinus) as well as through St. Augustine have been discussed. Here are a few other distressing misrepresentations of what Bayle has to say: p. 30, on Jews; p. 30, n. 6, on the inspiration of scripture; p. 31, n. 2, on the same subject; p. 37, on miracles; p. 61, n. 1, on man's dominion over animals; p. 92, n. 4, on Christian and natural morality; p. 137, n. 4, on moral and speculative dogmas. Page 92, n. 9, refers to several pages in which Bayle's concluding remark flatly contradicts Professor Mason's interpretation. Spot checks in Moland have turned up no misrepresentations of Voltaire's thought, which is generally less qualified than Bayle's. 128 HISTORY OF PHILOSOPHY The result is that this Hellenistic-Middle Age syncretism has had a far-reaching influence upon Paracelsus's thought. Because he was in no way a systematic philosopher, his writings are full of contradictions, developments, unitarian and dualistic tendencies, theistic... (shrink)

Zwei Anlässe bilden den Ausgangspunkt für diesen Sammelband. Anlässlich des 100. Todestags von Hermann Cohen fand im Oktober 2018 in Dortmund ein Symposium statt, das hier dokumentiert wird. Im Mittelpunkt standen hierbei die Fragen nach Cohens Bedeutung für die Philosophiegeschichte bis in die Gegenwart sowie nach der bleibenden Relevanz seines Religionsbegriffs. Zudem wird Dieter Adelmanns grundlegende Studie zum Herkommen des Begriffs „erzeugen“ in Cohens Logik der reinen Erkenntnis aus der Synthese von früher Wissenschaft des Judentums und der Humboldtschen Sprachphilosophie (...) im Werk H. Steinthals erstmals einer breiten Öffentlichkeit vorgelegt. Adelmann zeigt insbesondere die Bedeutung von M. Joel, Michael Sachs und Steinthal für das religiös geprägte Denken des Marburger Neukantianers und Erkenntnistheoretikers Cohen auf. Brigitte Falkenburg zeigt, dass jenseits von Cohens Erkenntnistheorie seine eigentliche Bedeutung im philosophischen Konstruktivismus zu finden ist. Knut Martin Stünkel wendet sich Cohens unterschätzter Religionsschrift Der Begriff der Religion im System der Philosophie von 1915 zu und entwickelt eine Religionstopologie, mit deren Hilfe eine metasprachliche Ebene der Religionsforschung ermöglicht wird. (shrink)

This essay explores the aspects of the Aristotelian psuchē that accounts for its contemporary appeal. The poverty of the notion of the mind is discussed. The superiority of the psuchē over the mind is emphasized.

German noun plurals not ending in -s are not as irregular as Clahsen suggests. Feminine nouns get the -n plural, unless they umlaut and are subject to a constraint that requires a reduced final syllable in the plural. Another regular class is masculine nouns ending in schwa, which are weakly inflected. It is suggested that more differentiated psycholinguistic experiments can identify these regularities.

Effective inseparability of pairs of sets is an important notion in logic and computer science. We study the effective inseparability of sets which appear as index sets of subsets of an effectively given topological T0-space and discuss its consequences. It is shown that for two disjoint subsets X and Y of the space one can effectively find a witness that the index set of X cannot be separated from the index set of Y by a recursively enumerable set, if X (...) intersects the topological closure of an effectively enumerable subset of Y. As a consequence of a more general parametric inseparability result a theorem of Rice-Shapiro type is obtained. Moreover, under some additional requirements it follows that nonopen subsets have productive index sets. This implies a generalized Rice theorem: Connected spaces have only trivial completely recursive subsets. As application some decision problems in computable analysis and domain theory are studied. It follows that the complement of the halting problem can be reduced to the problem to decide of a number whether it is a computable irrational. The same is true for the problems to decide whether two numbers are equal, whether one is not greater than the other, and whether a number is equal to a given number. In the case of an effectively given continuous complete partial order the complexity of the last problem depends on whether the given element is the smallest element, in which case the complement of the halting problem is reducible to it, whether it is a base element and maximal, then the decision problem is recursively isomorphic to the halting problem, or whether it is none of these. In this case, both the halting problem and its complement are reducible to the problem. The same is true in nontrivial cases for the problems whether an element belongs to the basis, whether two elements of the partial order are equal, or whether one approximates the other. In general, for any nonempty proper subset of the partial order either the halting problem or its complement can be reduced to the membership problem of the subset. (shrink)