Contents: INTRODUCTION. Kazimierz TWARDOWSKI: The Majesty of the University. I. Zygmunt ZIEMBI??N??SKI: What Can Be Saved of the Idea of the University? Leszek KO??l??AKOWSKI: What Are Universities for? Leon GUMA??N??SKI: The Ideal University and Reality. Zygmunt BAUMAN: The Present Crisis of the Universities. II. Kazimierz AJDUKIEWICZ: On Freedom of Science. Henryk SAMSONOWICZ: Universities and Democracy. Jerzy TOPOLSKI: The Commonwealth of Scholars and New Conceptions of Truth. Klemens SZANIAWSKI: Plus ratio quam vis. III. Leon KOJ: Science, Teaching and Values. Klemens (...) SZANIAWSKI: The Ethics of Scientific Criticism. Jerzy BRZEZI??N??SKI: Ethical Problems of Research Work of Psychologists. IV. Janusz GO??L??KOWSKI: Tradition in Science. Jerzy KMITA: Is a "Creative Man of Knowledge" Needed in University Teaching? Leszek NOWAK: The Personality of Researchers and the Necessity of Schools in Science. RECAPITULATION. Jerzy BRZEZI??N??SKI: Reflections on the University. (shrink)

Contents: PART 1. MODELS IN SCIENTIFIC PROCESSES. Joseph AGASSI: Why there is no theory of models. Ma??l??gorzata CZARNOCKA: Models and symbolic nature of knowledge. Adam GROBLER: The representational and the non-representational in models of scientific theories. Stephan HARTMANN: Models as a tool for the theory construction; some strategies of preliminary physics. William HERFEL: Nonlinear dynamical models as concrete construction. Elzbieta KA??L??USZY??N??SKA: Styles of thinking. Stathis PSILLOS: The cognitive interplay between theories and models: the case of 19th century optics. PART 2. (...) TOOLS OF SCIENCE. Nancy D. CARTWRIGHT, Towfic SHOMAR, Maricio SUAREZ: The tool-box of science. Javier ECHEVERRIA: The four contexts of scientific activity. Katline HAVAS: Continuity and change; kinds of negation in scientific progress. Matthias KAISER: The independence of scientific phenomena. W??l??adys??l??aw KRAJEWSKI: Scientific meta-philosophy. Ilkka NIINILUOTO: The emergence if scientific specialities: six models. Leszek NOWAK: Antirealism, realism and idealization. Rinat M. NUGAYEV: Classic, modern and postmodern scientific unification. Veikko RANTALA: Translation and scientific change. Gerhard SCHURZ: Theories and their applications - a case of nonmonotonic reasoning. Witold STRAWI??N??SKI: The unity of science today. Vardan TOROSIAN: Are the ethic and logic of science compatible. PART 3. UNSHARP APPROACHES IN SCIENCE. Ernest W. ADAMS: Problems and prospects in a theory of inexact first-order theories. Wolfgang BALZER and Gerhard ZOUBEK: On the comparison of approximative empirical claims. Gianpierro CATTANEO, Maria Luisa DALLA CHIARA, Roberto GIUNTINI: The unsharp approaches to quantum theory. Theo A.F. KUIPERS: Falsification versus efficient truth approximation. Bernhard LAUTH: Limiting decidability and probability. Jaros??l??aw PYKACZ: Many-valued logics in foundations of quantum mechanics. Roman R. ZAPATRIN: Logico-algebraic approach to spacetime quantization. (shrink)

This paper has a two-fold purpose. On the one hand, it introduces the concept of a syntactically \-algebraizable \-institution, which generalizes in the context of categorical abstract algebraic logic the notion of an algebraizable logic of Blok and Pigozzi. On the other hand, it has the purpose of comparing this important notion with the weaker ones of an \-protoalgebraic and of a syntactically \-equivalential \-institution and with the stronger one of a regularly \-algebraizable \-institution. \-protoalgebraic \-institutions and syntactically \-equivalential \-institutions (...) were previously introduced by the author and abstract in the categorical framework the protoalgebraic logics of Blok and Pigozzi and the equivalential logics of Prucnal and Wro\'{n}ski and of Czelakowski. Regularly \-algebraizable \-institutions are introduced in the present paper taking after work of Czelakowski and of Blok and Pigozzi in the sentential logic framework. On the way to defining syntactically \-algebraizable \-institutions, the important notion of an equational \-institution associated with a given quasivariety of \-algebraic systems is also introduced. It is based on the notion of an \-quasivariety imported recently from the theory of Universal Algebra to the categorical level by the author. (shrink)

Contents: PART I. PHILOSOPHICAL EXPLANATIONS OF CREATIVITY AND CONSCIOUSNESS. Krystyna ZAMIARA: The psychological approach to creativity. A critical appraisal. Rick L. FRANKLIN: Creativity and depth in understanding. Zdzis??l??awa PIATEK: Creativity of life and F.W. Nietzsche's idea of Superman. Jaromír JANOUSEK: Dialogue and joint activity: A psychological approach. Krystyna ZAMIARA: Some remarks on Piaget's notion of "consciousness" and its importance for the studies of culture. Anna GA??L??DOWA, and Aleksander NELICKI: Attitudes towards values as a factor determining creativity. PART II. THE ROLE (...) OF CREATIVITY IN THE THEORY-BUILDING. Leszek NOWAK: On creativity in theory-building. Izabella NOWAK: Discovery and correspondence. A contribution to the idealizational approach to science. Jerzy BRZEZI??N??SKI: Research process in psychology in the context of the researcher's methodological consciousness. Andrzej FALKOWSKI: Cognitive similarity in scientific discovery: An ecological approach. PART III: CONSCIOUSNESS IN HISTORICAL PERSPECTIVE. Kathleen V. WILKES: Inside insight. Franco DI MARIA, and Gioacchino LAVANCO: History and epistemology of the unconscious. Franco DI MARIA, and Gioacchino LAVANCO: Conscious/unconscious and group-analysis. Banjamin WALLACE, Andrzej KOKOSZKA, and Deanna D. TUROSKY: Historical and contemporary thoughts on consciousness and its altered states. PART IV. BETWEEN EXPRESSION AND PROJECTION. Micha??l?? STASIAKIEWICZ: Creativity and projection: Paradigm opposition and implicit correspondence. Anna BRZEZI??N??SKA: Creative expression versus projection. PART V. THE ROLE OF PSYCHOPHYSIOLOGICAL COMPONENTS IN EXPLANATION OF PHENOMENA OF CONSCIOUSNESS AND CREATIVITY. Mario BUNGE: Explaining creativity. Piotr WOLSKI: Hemispheric asymmetry and consciousness. Is there any relationship? Andrzej KOKOSZKA: A rationale for psychology of consciousness. PSYCHOLOGICAL EXPLANATIONS OF CREATIVITY AND CONSCIOUSNESS. Santo DI NUOVO: Consciousness and attention. Tomasz MARUSZEWSKI: Two looks on consciousness. Is there any interface between philosophy of science and psychology? Marek KOWALCZYK: On the question of the functions of consciousness. Dean Keith SIMONTON: From childhood giftedness to creative genius. Magdalena FAFROWICZ, Tadeusz MAREK, and Czes??l??aw NOWOROL: Effectiveness of innovation as a function of creative style of behavior and type of leadership. Mark A. RUNCO, and Joni RADIO GAYNOR: Creativity and optimal development. (shrink)

The paper offers a theoretical investigation into the sources of normativity in practical argumentation. The chief question is: Do we need objectively-minded, unbiased arguers or can we count on “good” argumentative processes in which individual biases cancel each other out? I address this question by analysing a detailed structure of practical argument and its varieties, and by discussing the tenets of a comparative approach to practical reason. I argue that given the comparative structure proposed, reasoned advocacy in argumentative activity upholds (...) reasonableness whenever that activity is adequately designed. I propose some basic rules for such a design of practical argumentation. (shrink)

This article addresses the question whether skiing as a nature sport enables practitioners to develop a rapport with nature, or rather estranges and insulates them from their mountainous ambiance. To address this question, I analyse a recent skiing movie from a psychoanalytical perspective and from a neuro-scientific perspective. I conclude that Jean-Paul Sartre’s classical but egocentric account of his skiing experiences disavows the technicity involved in contemporary skiing as a sportive practice for the affluent masses, which actually represents an urbanisation (...) of the sublime, symptomatic for the current era. (shrink)

We introduce the notion of a Minkowskian Branching Structure ("MBS" for short). Then we prove some results concerning the phenomenon of funny business in its finitary and infinitary variants.

Since its first introduction by Hans Reichenbach, many philosophers have claimed to refute the common cause principle. The situation is not so straightforward, though: validity of the principle remains an open question. The book traces different formulations of the principle, and provides proofs of a few pertinent theorems, settling the relevant questions in various probability spaces. It offers both philosophical insight and mathematical rigor.

ABSTRACT The following text is a large fragment of the lectures on heresy that Leszek Kołakowski gave between November 1982 and February 1983 on the Polish radio station Radio Free Europe. These lectures have never been published in English. They were only published under the title ‘Herezja’ in Poland after the author’s death in 2010 by the publishing company Znak. Kołakowski raises the universal and timeless issues of tolerance, ideological struggles, protection of doctrine by religious institutions and the changing (...) attitude of the Catholic Church towards heretical challenges. The concept of heresy is an opportunity to describe the history of ideological conflicts, show how they arise and how they can be resolved. The story of struggle between dogmatists and heretics is an endless story of changing social order and giving new shapes to the reality created by people and their ideas. Kołakowski points out that any doctrinal, political or ideological system must allow for criticism and otherness. Nearly 40 years after these lectures were given, they retain a special freshness in the context of the political, ideological and social crisis that Europe is experiencing in the early twenty-first century. (shrink)

The philosophical argument between Jean-Paul Sartre and Albert Camus can be summarised in their conflicting accounts of skiing and swimming. For Sartre skiing exemplifies the struggle of existence and the angst of the alienated ego. For Camus, swimming represents some glimmering of collective harmony, the possibility of transcendence. Sartre's thinking is inflected by quantum theory and the 'steady state', whereas Camus is more of a wave theorist, with a lingering nostalgia for the 'primeval atom' and a fondness for peak experiences. (...) Put together their separate ways of analysing consciousness suggest a two-phase account of cognition. (shrink)

Since its introduction by Hans Reichenbach, many philosophers have claimed to refute the idea – known as the common cause principle – that any surprising correlation between any two factors that do not directly influence one another is due to some common cause. For example, falsity of the principle is frequently inferred from falsifiability of Bell’s inequalities. The author demonstrates, however, that the situation is not so straightforward. There is more than one version of the principle formulated with the use (...) of different variants of Reichenbach-inspired notions; their falsity still remains an open question. The book traces different formulations of the principle and provides proofs of a few pertinent theorems, settling the relevant questions in various probability spaces. In exploring mathematical and philosophical issues surrounding the principle, the book offers both philosophical insight and mathematical rigor. (shrink)

In this paper we give a positive answer to a problem posed by Hofer-Szabó and Rédei (Int. J. Theor. Phys. 43:1819–1826, 2004) regarding the existence of infinite Reichenbachian common cause systems (RCCSs). An example of a countably infinite RCCS is presented. It is also determined that no RCCSs of greater cardinality exist.

The aim of the paper is to analyze the types of interpretative reasoning determining the content of extra-legal criteria contained in general reference clauses. This construction, despite its normative foundation, detaches itself from the intention of the legislator much more than e.g. the principles of law, at the same time extending deliberately judicial discretion. Extra-legal values, identified by courts as to their type and their content, then confronted with internal legal axiology and concretized with respect to the facts of the (...) case, are the most crucial part of reasoning that affects the process, results and roles of particular rules of judicial interpretation. It reduces the role of language and systemic rules, connecting the effect of determining the content of extra-legal values primarily with the type of political system and the related scope of judicial autonomy. The different impact between democratic and authoritarian regimes on judicial reasoning is confirmed by the analyzed examples of the case law of the European Court of Human Rights and the Polish courts deciding in the period before and after 1989. (shrink)

Leszek Kolakowski delves into some of the most intellectually vigorous questions of our time in this remarkable collection of essays garnished with his characteristic wit. Ten of the essays have never appeared before in English. "Exemplary.

We give a few results concerning the notions of causal completability and causal closedness of classical probability spaces . We prove that any classical probability space has a causally closed extension; any finite classical probability space with positive rational probabilities on the atoms of the event algebra can be extended to a causally up-to-three-closed finite space; and any classical probability space can be extended to a space in which all correlations between events that are logically independent modulo measure zero event (...) have a countably infinite common-cause system. Collectively, these results show that it is surprisingly easy to find Reichenbach-style ‘explanations' for correlations, underlining doubts as to whether this approach can yield a philosophically relevant account of causality. 1 Introduction2 Basic Definitions and Results in the Literature3 Causal Completability the Easy Way: ‘Splitting the Atom’4 Causal Completability of Classical Probability Spaces: The General Case5 Infinite Statistical Common-Cause Systems for Arbitrary Pairs6 ConclusionAppendix A. (shrink)

We show, under the assumption that factoring is hard, that a model of PV exists in which the polynomial hierarchy does not collapse to the linear hierarchy; that a model of S21 exists in which NP is not in the second level of the linear hierarchy; and that a model of S21 exists in which the polynomial hierarchy collapses to the linear hierarchy. Our methods are model-theoretic. We use the assumption about factoring to get a model in which the weak (...) pigeonhole principle fails in a certain way, and then work with this failure to obtain our results. As a corollary of one of the proofs, we also show that in S21 the failure of WPHP (for Σb1 definable relations) implies that the strict version of PH does not collapse to a finite level. (shrink)

In recent years part of the literature on probabilistic causality concerned notions stemming from Reichenbach’s idea of explaining correlations between not directly causally related events by referring to their common causes. A few related notions have been introduced, e.g. that of a “common cause system” (Hofer-Szabó and Rédei in Int J Theor Phys 43(7/8):1819–1826, 2004) and “causal (N-)closedness” of probability spaces (Gyenis and Rédei in Found Phys 34(9):1284–1303, 2004; Hofer-Szabó and Rédei in Found Phys 36(5):745–756, 2006). In this paper we (...) introduce a new and natural notion similar to causal closedness and prove a number of theorems which can be seen as extensions of earlier results from the literature. Most notably we prove that a finite probability space is causally closed in our sense iff its measure is uniform. We also present a generalisation of this result to a class of non-classical probability spaces. (shrink)

My Ph.D. dissertation written under the supervision of Prof. Tomasz Placek at the Institute of Philosophy of the Jagiellonian University in Kraków. In one of its most basic and informal shapes, the principle of the common cause states that any surprising correlation between two factors which are believed not to directly influence one another is due to their common cause. Here we will be concerned with a version od this idea which possesses a purely probabilistic formulation. It was introduced, in (...) the form of a general principle, by Hans Reichenbach in his posthumously published book "The Direction of Time". The central notion of the principle in Reichenbach's formulation, and of the current essay, is that of screening off: two correlated events are screened off by a third event if conditioning on the third event makes them probabilistically independent. Reichenbach's principle marks also the beginning of a new field of philosophy: namely, that of ``probabilistic causality''. For the most part, the current essay can be seen as an effort at checking how far one can go with the purely statistical notions revolving around Reichenbach's idea of common cause. In short, the answer is ``surprisingly far''; in some classes of probability spaces all correlations between ``interesting'' events possess explanations of such sort. However, this fact lends itself to opposing interpretations; more on that in the conclusion. Chapters 6 and 7 contain mathematical results concerning these issues. The screening-off condition requires an equality of a probabilistic nature to hold; chapter 8 is a short discussion of slightly weakened versions of the condition, which hold if the sides of the above mentioned equality differ to a small degree. In chapter 2, after some mathematical preliminaries, we study the various formulations of the principle which might be said to stem from the original idea of Reichenbach. We also examine a few of the most salient counterarguments, which undermine at least some of the formulations. Chapter 3 is of a formal nature, dealing with various probabilistic notions which can be thought of as generalizations of Reichenbach's concept of common cause. The next chapter concerns the relationship between the idea of common causal explanation and the Bell inequalities. In chapter 5 we briefly present the form of Reichenbach's principle which can be found in the field of representing causal structures by means of directed acyclic graphs. (shrink)

The paper investigates, in the framework of branching space–times, whether an infinite EPR-like correlation which does not involve finite EPR-like correlations is possible.

We investigate some topological properties of the spaces of classes of bounded type-definable equivalence relations.

We investigate the semantics of historical counterfactuals in indeterministic contexts. We claim that "plain" and "necessitated" counterfactuals differ in meaning. To substantiate this claim, we propose a new semantic treatment of historical counterfactuals in the Branching Time framework. We supplement our semantics with supervaluationist postsemantics, thanks to which we can explain away the intuitions which seem to talk in favor of the identification of "would" with "would necessarily".

The paper concerns the conditions and methods of using previous judicial decisions as a kind of precedents in the processes of application of law within the statutory legal order. The use of such decisions, not announced by the legislator, depends on the courts, undertaking such actions on the grounds of similarity of cases or of decisional processes. Such decisions do not become an exclusive validation argument and may create a situation of their potential conflict with legal regulations as well as (...) an inferential supplementation of their content. Dissemination of such activity of the courts leads to the development of precedential practice, though, its actual jurisdictional role depends on proper justification of decisions, within which reference to these decisions should be adaptive, generalizing as well as argumentative and discursive. (shrink)

We tackle two open questions from Leitgeb and Pettigrew (2010b) regarding what the belief update framework described in that paper mandates as correct responses to two problems. One of them concerns credences in overlapping propositions and is known in the literature as the “simultaneous update problem”. The other is the well known “Judy Benjamin” problem concerning conditional credences. We argue that our results concerning the problems point to deficiencies of the framework. More generally, we observe that the method of minimizing (...) inverse relative entropy seems to work better than (or at least equally well as) its competitors in many situations. (shrink)

Modifying the methods of Z. Adamowicz's paper Herbrand consistency and bounded arithmetic [3] we show that there exists a number n such that ⋃m Sm (the union of the bounded arithmetic theories Sm) does not prove the Herbrand consistency of the finitely axiomatizable theory $S_{3}^{n}$.

Hawthorne, Landes, Wallmann and Williamson argue that the Principal Principle implies a version of the Principle of Indifference. We show that what the Authors take to be the Principle of Indifference can be obtained without invoking anything which would seem to be related to the Principal Principle. In the Appendix we also discuss several Conditions proposed in the same paper.

In a recent paper in this Journal Iñaki San Pedro put forward a conjecture regarding the relationship between no-conspiracy and parameter independence in EPR scenarios; namely, that violation of the former implies violation of the latter. He also offered an argument supporting the conjecture. In this short note I present a method of constructing counterexamples to the conjecture and point to a mistake in the argument.

There is a remarkable similarity between some mathematical objects used in the Branching Space-Times framework and those appearing in computer science in the fields of event structures for concurrent processing and Chu spaces. This paper introduces the similarities and formulates a few open questions for further research, hoping that both BST theorists and computer scientists can benefit from the project.

Leszek Kolakowski, an eminent philosopher known mainly outside his native Poland for Main Currents of Marxism, was an enormously influential public figure in Poland. He was awarded the Order of the White Eagle when Poland was liberated and went into exile in 1968, first to North America, where he continued to give active support and advice to Solidarity, and then to Oxford. Kolakowski, who became a Fellow of the British Academy in 1980, was buried in Poland with military honours (...) and a minute's silence in the national Parliament. Obituary by Steven Lukes FBA. (shrink)

First lecture: The end -- Second lecture: The means -- Third lecture: The achievements.

Moral thinking plays an important role in philosophy of Leszek Kołakowski. The paper examines his ethical position as it was presented in Kołakowski’s writings dealing directly with this subject, against the background of those stances that he opposed. In the scope of the author’s interest is the problem of the persistence of some elements and the development of the position in question. Both Kołakowski’s ethical and metaethical reflection is taken into account. In conclusion, Kołakowski’s position is ascribed to the (...) anti-theoretic current in ethics. (shrink)

Leszek Kolakowski discusses, in a highly original way, the arguments for and against the existence of God as they have been conducted through the ages. He examines the critiques of religious belief, from the Epicureans through Nietzsche to contemporary anthropological inquiry, the assumptions that underlie them, and the counter-arguments of such apologists as Descartes, Leibniz, and Pascal. His exploration of the philosophy of religion covers the historical discussions of the nature and existence of evil, the importance of the concepts (...) of failure and eternity to the religious impulse, the relationship between skepticism and mysticism, and the place of reason, understanding, and in models of religious thought. He examines why people, throughout known history, have cherished the idea of eternity and existence after death, and why this hope has been dependent on the worship of an eternal reality. He confronts the problems of meaning in religious language. (shrink)

For over a century, philosophers have argued that philosophy is impossible or useless, or both. Although the basic notion dates back to the days of Socrates, there is still heated disagreement about the nature of truth, reality, knowledge, the good, and God. This may make little practical difference to our lives, but it leaves us with a feeling of radical uncertainty, a feeling described by Kolakowski as "metaphysical horror." "The horror is this," he says, "if nothing truly exists except the (...) Absolute, the Absolute is nothing if nothing truly exists except myself, I am nothing." The aim of this book, for Kolakowski, is finding a way out of this seeming dead end. In a trenchant analysis that serves as an introduction to nearly all of Western philosophy, Kolakowski confronts these dilemmas head on through examinations of several prominent philosophers including Descartes, Spinoza, Husserl, and many of the Neo-Platonists. He finds that philosophy may not provide definitive answers to the fundamental questions, yet the quest itself transforms our lives. It may undermine most of our certainties, yet it still leaves room for our spiritual yearnings and religious beliefs. The final sentence of the book captures the hopefulness that has survived the horror of nothingness when Kolakowski asks: "Is it not reasonable to suspect that if existence were pointless and the universe devoid of meaning, we would never have achieved not only the ability to imagine otherwise, but even the ability to entertain this very thought--to wit, that existence is pointless and the universe devoid of meaning?" The answer, of course, is clear. Now it is up to readers to take up the challenge of his arguments. (shrink)

In this paper, I criticize Mika Hämäläinen’s recent argument for compensated sex-integrated individual competitions in ski jumping. I argue that Hämäläinen’s argument is problematic at least in four different ways. Two of my criticisms are intended to show that Hämäläinen ignores some important considerations which he should have discussed. On the other hand, I also argue that Hämäläinen’s argument is inherently flawed in two respects.

Can nature make us happy? How can we know anything? What is justice? Why is there evil in the world? What is the source of truth? Is it possible for God not to exist? Can we really believe what we see? There are questions that have intrigued the world's great thinkers over the ages, which still touch a chord in all of us today. They are questions that can teach us about the way we live, work, relate to each other (...) and see the world. Here Leszek Kolakowski explores the essence of these ideas, introducing figures from Socrates to Thomas Aquinas, Descartes to Nietzsche, and concentrating on one single important philosophical question from each of them. Whether reflecting on good and evil, truth and beauty, faith and the soul, or free will and consciousness, Leszek Kolakowski shows that these timeless ideas remain at the very core of our existence. (shrink)