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810The new Tweety puzzle: arguments against monistic Bayesian approaches in epistemology and cognitive scienceSynthese 190 (8): 1407-1435. 2013.In this paper we discuss the new Tweety puzzle. The original Tweety puzzle was addressed by approaches in non-monotonic logic, which aim to adequately represent the Tweety case, namely that Tweety is a penguin and, thus, an exceptional bird, which cannot fly, although in general birds can fly. The new Tweety puzzle is intended as a challenge for probabilistic theories of epistemic states. In the first part of the paper we argue against monistic Bayesians, who assume that epistemic states can at …Read more
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38Sraffa's Impact on WittgensteinIn Herbert Hrachovec, Alois Pichler & Joseph Wang (eds.), Papers of the 30th International Wittgenstein Symposium 5-11 August 2007. Philosophie der Informationsgesellschaft - Philosophy of the Information Society, Austrian Ludwig Wittgenstein Society. 2007.Sraffa was one of two persons whom Wittgenstein explicitly acknowledged in the preface of the Philosophical Investigations. However, little is known of Sraffa’s influence on Wittgenstein. On the basis on the yet unpublished letters from Wittgenstein to Sraffa and interviews with Georg Kreisel, the influence of Sraffa on Wittgenstein is investigated.
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96Philosophy of Science in Germany, 1992–2012: Survey-Based Overview and Quantitative AnalysisJournal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 45 (1): 71-160. 2014.An overview of the German philosophy of science community is given for the years 1992–2012, based on a survey in which 159 philosophers of science in Germany participated. To this end, the institutional background of the German philosophy of science community is examined in terms of journals, centers, and associations. Furthermore, a qualitative description and a quantitative analysis of our survey results are presented. Quantitative estimates are given for: (a) academic positions, (b) research …Read more
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102Thinking about Non-Universal Laws: Introduction to the Special Issue Ceteris Paribus Laws RevisitedErkenntnis 79 (10): 1703-1713. 2014.What are ceteris paribus laws? Which disciplines appeal to cp laws and which semantics, metaphysical underpinning, and epistemological dimensions do cp law statements have? Firstly, we give a short overview of the recent discussion on cp laws, which addresses these questions. Secondly, we suggest that given the rich and diverse literature on cp laws a broad conception of cp laws should be endorsed which takes into account the different ways in which laws can be non-universal . Finally, we provid…Read more
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43Logic and Probability: Reasoning in Uncertain Environments – Introduction to the Special IssueStudia Logica 102 (4): 663-671. 2014.The current special issue focuses on logical and probabilistic approaches to reasoning in uncertain environments, both from a formal, conceptual and argumentative perspective as well as an empirical point of view. In the present introduction we give an overview of the types of problems addressed by the individual contributions of the special issue, based on fundamental distinctions employed in this area. We furthermore describe some of the general features of the special issue
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870Completeness and Correspondence in Chellas–Segerberg SemanticsStudia Logica 102 (4): 891-911. 2014.We investigate a lattice of conditional logics described by a Kripke type semantics, which was suggested by Chellas and Segerberg – Chellas–Segerberg (CS) semantics – plus 30 further principles. We (i) present a non-trivial frame-based completeness result, (ii) a translation procedure which gives one corresponding trivial frame conditions for arbitrary formula schemata, and (iii) non-trivial frame conditions in CS semantics which correspond to the 30 principles
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105Conditional structures lie at the heart of the sciences, humanities, and everyday reasoning. It is hence not surprising that conditional logics – logics specifically designed to account for natural language conditionals – are an active and interdisciplinary area. The present book gives a formal and a philosophical account of indicative and counterfactual conditionals in terms of Chellas-Segerberg semantics. For that purpose a range of topics are discussed such as Bennett’s arguments against trut…Read more
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116Do Ceteris Paribus Laws Exist? A Regularity-Based Best System AnalysisErkenntnis 79 (S10): 1833-1847. 2014.This paper argues that ceteris paribus (cp) laws exist based on a Lewisian best system analysis of lawhood (BSA). Furthermore, it shows that a BSA faces a second trivialization problem besides the one identified by Lewis. The first point concerns an argument against cp laws by Earman and Roberts. The second point aims to help making some assumptions of the BSA explicit. To address the second trivialization problem, a restriction in terms of natural logical constants is proposed that allows one t…Read more
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Heinrich Heine University DüsseldorfDepartment of Philosophy/DCLPS
Areas of Specialization
Logic and Philosophy of Logic |
Philosophy of Cognitive Science |
General Philosophy of Science |