1 Coherentist Contraction Sven Ove Hansson 1. Introduction Coherence is one of the epistemic ideals most often referred to in the belief revision literature, not least since the treatment of coherence in Peter Gärdenfors’s seminal book Knowledge in Flux. The purpose of the present paper is to investigate what can be meant by performing a contraction coherently. A minimal requirement is that contra

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/decision/so-hansson.pdf - 2025-06-30

1 CONCEPTUAL SPACE AND PROJECTIBILITY By Inge-Bert Täljedal Department of Integrative Medical Biology, Section for Histology and Cell Biology, Umeå University, SE-901 87 Umeå, Sweden Summary. According to Gärdenfors, the formal property of convexity in a conceptual space can serve as a criterion of projectibility. This theory is here criticized on two grounds: 1) Gärdenfors is inconsistent when ap

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/decision/taljedal.pdf - 2025-06-30

E:\MyFiles\Texte\vilks.wpd $/2*,&)25&+$1*,1*%(/,()6 :,7+$33/,&$7,21672 5($621,1*$%287&+2,&($1'*$0(6 $UQLV9LONV Handelshochschule Leipzig - Leipzig Graduate School of Management - Jahnallee 59, 04109 Leipzig, Germany vilks@microec.hhl.de ABSTRACT. We suggest a belief set semantics for an epistemic logic with a sequence K0, K1, K2,... of belief operators. The key idea consists in taking a model for

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/decision/vilks.pdf - 2025-06-30

A Reduction of Doxastic Logic to Action Logic Heinrich Wansing Dresden University of Technology Institute of Philosophy D-01062 Dresden Germany Personal preface Knowledge is in ux. To a very large extent, we all owe a better understanding of what this may mean to Peter Gardenfors. But not only knowledge is in ux; also people uctuate from time to time. I rst met Peter more than a decade ago, when I

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/decision/wansing.pdf - 2025-06-30

Namnlıst4 Risk’s Place in Decision Rules Paul Weirich Philosophy Department University of Missouri-Columbia Columbia, MO 65211, USA What a delight to celebrate the achievements of Peter Gärdenfors! His monumental book, Knowledge in Flux, gives new direction to epistemology. His judicious collection of readings, compiled with Nils-Eric Sahlin, Decision, Probability, and Utility, is a standard text

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/decision/weirich.pdf - 2025-06-30

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https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/dynamics/friedman_halpern.pdf - 2025-06-30

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/dynamics/gomolinska_pearce.pdf - 2025-06-30

Partial Logic and the Dynamics of Epistemic States François Lepage Serge Lapierre Université de Montréal Collège de Bois-de-Boulogne lepagef@ere.umontreal.ca lapierrs@magellan.umontreal.ca 0. Introduction This paper proposes a new approach for the modelization of the dynamics of epistemic states using partial logic. It has three parts. In the first one, we present in a nutshell the classical Alcho

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/dynamics/lepage_lapierre.pdf - 2025-06-30

Microsoft Word - Lindstrom/Rabinowicz BELIEF CHANGE FOR INTROSPECTIVE AGENTS* Sten Lindstrm and Wlodek Rabinowicz ABSTRACT The modern development in doxastic (and epistemic) logic started with Jaakko HintikkaÕs seminal book Knowledge and Belief (1962). In a doxastic logic of Hintikka-type, with a mo- dal operator B standing for Òthe agent believes thatÓ, it is possible to represent and reason abou

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/dynamics/lindstrom_rabinowicz.pdf - 2025-06-30

Microsoft Word - Roeper.word98/corrected Sequent Logic Based on Belief Change 1 A Sequent Formulation of Conditional Logic Based on Belief Change Operations1 Peter Roeper As part of his well-known investigation of the theory of belief change Peter Gärdenfors has developed a semantics for conditional logic, based on the operations of expansion and revision of states of information.2 The account amo

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/dynamics/roeper.pdf - 2025-06-30

Two Dogmas of Belief Revision Hans Rott Institute for Philosophy, University of Regensburg, 93040 Regensburg, Germany hans.rott@psk.uni-regensburg.de Abstract The paper attacks the widely held view that belief revison theories, as they have been studied in the past two decades, are founded on the Principle of Informational Economy. The principle comes in two versions. According to the rst, an agen

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/dynamics/rott.pdf - 2025-06-30

prot.dvi A Note on Prototype Revision Renata Wassermann y ILLC University of Amsterdam The Netherlands renata@wins.uva.nl Eduardo Ferme Departamento de Computacion Universidad de Buenos Aires Argentina ferme@dc.uba.ar 1 Introduction Belief revision (for an overview, see [Gar88, GR95]) deals with the problem of how to accommodate new assertions into an existent body of knowledge. Traditionally, the

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/dynamics/wassermann_ferme.pdf - 2025-06-30

bengt_hansson.wp5 Mapping The Mind - A Matter Of Logic? 1. Knowledge - a mysterious matter Perhaps the most impressive feature of man is his ability to accumulate knowledge, to utilise the knowing of his forefathers and contemporaries, and to pass on his own understanding to the next generation. Not that nothing is lost in the process, not that the working of any man’s mind is exactly copied in an

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/language/b-hansson.pdf - 2025-06-30

Microsoft Word - Brinck key words: evolution of language; communication; attention; tool use; reference; perception; intelligence; intentionality Abstract. It is argued that the capacity to focus attention is crucial for intentional communication. Intentional communication is goal-intended; directed at changing mental states and as a consequence behaviour; about a referential object common to send

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/language/brinck.pdf - 2025-06-30

Microsoft Word - emt&sjılander.RTF 1 Jeanette Emt & Sverre Sjölander Utopia in Mind: An Inevitable Consequence of Human Cognition? Abstract: The dream of a better or perfect world, Utopia, seems to be inescapable for humans. We have the cognitive capacity to imagine any conceivable future. This capacity, needed for complex social interaction, hunting, and gathering, has as a byproduct given us the

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/language/emt_sjolander.pdf - 2025-06-30

Haaparanta.PDF Existence and Propositional Attitudes: A Fregean Analysis* Leila Haaparanta Department of Mathematics, Statistics and Philosophy University of Tampere P.O. Box 607 FIN-33101 Tampere Finland Abstract It is a commonly held view that Frege's doctrine of senses and references is not compatible with the idea that there are de re beliefs. The present paper is meant to challenge that view.

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/language/haaparanta.pdf - 2025-06-30

Microsoft Word - DIANAFINFIN.doc A Distinction in Value: Intrinsic and For Its Own Sake* Wlodek Rabinowicz and Toni R¿nnow-Rasmussen Department of Philosophy, Lund University Several philosophers have recently argued for a distinction between intrinsic and final value. Following G. E. Moore (1903, 1922, 1993), an object is thought to be intrinsically valuable insofar as its value depends on (Ósupe

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/moral/rabinowicz_ronnow_rasmussen.pdf - 2025-06-30

Microsoft Word - poem-tommy-olofsson.docx Old Mountains Want to Turn to Sand Tommy Olofsson for Peter Gärdenfors I have my roots inside me, a skein of red threads. The stones have their roots inside them, like fine little ferns. Wrapped around their softness the stones sleep hard. For centuries they have rested under the sun. Old mountains want to turn to sand. They let themselves go and open up t

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS-pub/LUCS-SE/prelude/poem-tommy-olofsson.pdf - 2025-06-30

Microsoft Word - preface-spinning-ideas.docx Spinning Ideas Electronic Essays Dedicated to Peter Gärdenfors on His Fiftieth Birthday This collection of philosophical essays is dedicated to Peter Gärdenfors on his 50th birthday. They are written by his colleagues and friends from near and far. Peter’s philosophical achievements range through a wide spectrum of subjects - he has made significant con

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MOTION DETECTION – A NEURAL MODEL AND ITS IMPLEMENTATION Robert Pallbo Lund University Cognitive Science, Kungshuset, Lundagård, S–223 50 Lund, Sweden. E-mail: robert.pallbo@fil.lu.se Abstract A model for motion detection is presented. In this approach, motion is viewed as a stable pattern propagating over the image – a technique that makes the model unusually insensitive to noisy input sequences

https://www.lucs.lu.se/fileadmin/user_upload/project/lucs/LUCS_Minor/LUCS-Minor-01.pdf - 2025-06-30