The theme of this book is formed by a pair of concepts: the concept of formal language as carrier of the precise expression of meaning, facts and problems, and the concept of algorithm or calculus, i.e. a formally operating procedure for the solution of precisely described questions and problems. The book is a unified introduction to the modern theory of these concepts, to the way in which they developed first in mathematical logic and computability theory and later in automata theory, (...) and to the theory of formal languages and complexity theory. Apart from considering the fundamental themes and classical aspects of these areas, the subject matter has been selected to give priority throughout to the new aspects of traditional questions, results and methods which have developed from the needs or knowledge of computer science and particularly of complexity theory. It is both a textbook for introductory courses in the above-mentioned disciplines as well as a monograph in which further results of new research are systematically presented and where an attempt is made to make explicit the connections and analogies between a variety of concepts and constructions. (shrink)

Popper holds to the unity of scientific method: any differences between natural and social science are a product of theory, not a pretheoretical premise. Distin guishing instead pure and applied generalizing sciences, Popper focuses on the different role of laws in each. In generalizing social science, our tools are the logic of the situation, including the rationality principle, and unintended conse quences. Situations contain individuals, but also social entities not reducible to individuals: conspiracy theory is the extreme form of individualism. (...) Action in situations has unintended consequences. Both social and natural laws may be required to explain outcomes. The fate of Popper's ideas is a case study in the logic of the situation. Professional philosophers of social science lean toward individualism and a priorism (either intuitionist or rational choice). There are social and political explanations of this outcome, but little critical engagement with Popper's ideas. (shrink)

This article raises the question of whether standard economics with the general equilibrium model at its core applies situational analysis in a Popperian sense. Contrary to Popper's own view, the authors come to the conclusion that this is not the case. Standard economics fails to represent elements essential to any social situation in an adequate manner. It comprises uncertainty, time and space, social interaction, unintended effects, as well as culture and institutions. The authors suggest, therefore, the socioeconomic context as an (...) alternative approach to analyzing social situations. It consists of four basic elements: (1) dominant worldviews, (2) institutions and technologies, (3) relative prices, and (4) political instruments. The alternative approach was applied with some success to analyzing inter alia problems of unemployment as well as of transformation. (shrink)

In the Consolation of Ontology, Czech poet-philosopher Egon Bondy examines the substantial model of reality — the notion that there is some sort of substance, some "thing", idea, being, or principle that creates, underlies, transcends, or gives meaning to the universe in which we live. He shows how the substantial model, in both its theistic and mechanical materialist versions, is logically untenable and dangerous in its consequences. From there, Bondy shows how the nonsubstantial alternative — prefigured in the thinking (...) of cultures that developed independently of Greece — is simpler and more logically consistent. More importantly, it is free from the negative consequences of the substantial model and instead opens the way toward genuine human freedom, creativity, and responsibility, toward a corresponding and supportive form of social organization, and toward an unclouded understanding of ontological reality. Previously untranslated, the book asks that we leave behind comfortable assumptions and understand how the struggles for a genuinely human future and for ontological clarity presuppose each other and are mutually interdependent. (shrink)

ABSTRACTPeople's relationship between positive and negative affect varies on a continuum from relatively independent to bipolar opposites, with stronger bipolar opposition being termed affective bipolarity. Experiencing more depressive symptoms is associated with increased bipolarity, but the processes underlying this relation are not yet understood. Here, we sought to replicate this link, and to examine the role of two potential mediating mechanisms: emotion regulation ability, and trait brooding. Drawing from the Dynamic Model of Affect, we hypothesised that a poor ability to (...) regulate negative emotion, and the tendency to brood over one's depressed feelings would predict stronger affective bipolarity, and mediate the relationship between depressive symptoms and affective bipolarity. To measure affective bipolarity, we calculated within-person affect correlations using two weeks of experience sampling data from a community sample. Mediation analyses indicated that baseline assessments o... (shrink)

This chapter examines art-historical classification and style-dating and evaluates their applications in establishing the connections between Ireland and Anglo-Saxon England during the seventh century. It describes the animals and plants in Christian objects and suggests that they are variants of the Germanic Animal Style II defined by Bernhard Salin. The chapter also argues that these objects reflect the relationships between the Anglo-Saxon and Irish ruling elites.