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163The paper argues against a commitment to metaphysical necessity, semantic modalities are enough. The best approaches to elucidate the semantic modalities are (still) versions of lingustic ersatzism and fictionalism, even if only developed in parts. Within these necessary properties and the difference between natural and semantic laws can be accounted for. The proper background theory for this is an updated version of Logical Empiricism, which is congenial to recent trends in Structural Realism. …Read more
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190The following considerations concern modelling Belief Dynamics (BD) not just in the sense of a formalization, but rather in the sense of building a computational model and implementing the corresponding data structures and algorithms of recomputing beliefs. The purpose of such a project is to illustrate some ideas about belief changes in a Web of Beliefs (WoB) to explore and deepen one's understanding of belief changes by trying to implement or improve corresponding algorithms.
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6The Egological Structure of Consciousness: Lessons from Sartre for Analytical Philosophy of MindIn Hubert L. Dreyfus & Mark A. Wrathall (eds.), A Companion to Phenomenology and Existentialism, Wiley-blackwell. 2006.This chapter contains sections titled: Using Sartre Ordinary Language and the Self Self‐Denial in the Analytic Philosophy of Mind and in Sartre A Short Phenomenology of Some Distinctions Sartre's Conception of the Pre‐Reflexive Cogito De Se Theories of Self‐Awareness A Synthesis of the Pre‐reflexive Cogito with a De Se Theory of Self‐Awareness Unity of Consciousness and Reflexive Assent Where Do Higher‐Order Theories of Consciousness Go Wrong? Conclusion.
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2Philosophische SemantikDe Gruyter. 2005.Was ist Philosophische Semantik? Bedarf es neben der Linguistik uberhaupt noch einer "philosophischen" Semantik? Welche Rolle spielt diese Semantik fur die Philosophie im Allgemeinen? Welche methodische Rolle spielt die Klarung von "Bedeutung" fur die Sprachanalytische Philosophie? Tritt die philosophische Semantik an die Stelle der Erkenntnistheorie? In welchem Verhaltnis steht sie zur Ontologie und zur Philosophie des Geistes? Diesen Fragen geht das vorliegende Buch nach. In einem zentralen Ve…Read more
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4Der Sinn des Lebens: ein Beitrag zur analytischen ReligionsphilosophieDr. Hänsel-Hohenhausen. 2002.
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130This essay tries to elucidate structural elements of consciousness by drawing on phenomenological descriptions of consciousness and employing representationalist models of consciousness. The aim is not to explain the genesis of self-awareness, but to outline different aspects of its structure.
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65Richard G. Heck, Jr. , Frege's Theorem . Reviewed by (review)Philosophy in Review 32 (4): 319-325. 2012.
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Möglichkeits-und Unmöglichkeitsbedingungen des religiösen DiskursesFreiburger Zeitschrift für Philosophie Und Theologie 44 (1-2): 44-67. 1997.
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7How Are Semantic Metarepresentations Built and Processed?Kriterion - Journal of Philosophy 1 (26): 22-38. 2012.This paper looks at some aspects of semantic metarepresentation. It is mostly concerned with questions more formal, concerning the representation format in semantic metarepresentations, and the way they are processed. Section 1 distinguishes between metacognition and metarepresen- tation in a narrow and broad sense. Section 2 reminds the reader of some main areas where metarepresentations have to be used. The main part considers the ways that metarepresentations are built and processed. Section …Read more
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3Leila Haaparanta (Ed.): The Development of Modern Logic: Oxford University Press: Oxford, 2009, 1008 pp., 150.00 $, ISBN 978-0-195-13731-6 (review)Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 42 (1): 189-191. 2011.
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27An introduction to paraconsistent logicsPeter Lang. 2005.This book gives an overview of paraconsistent logics - that is logics which allow for inconsistency. Although allowing for inconsistency, paraconsistent logics are worth considering: Logical systems are worth considering in their own right since we can learn about very abstract structural properties of logics and the concepts employed within them such as negation, necessity and consistency. Some non-classical logics are especially of interest from a philosophical perspective since they alone off…Read more
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35Kearns' Illocutionary Logic and the LiarHistory and Philosophy of Logic 29 (3): 223-225. 2008.In his recent paper in History and Philosophy of Logic, John Kearns argues for a solution of the Liar paradox using an illocutionary logic (Kearns 2007 ). Paraconsistent approaches, especially dialetheism, which accepts the Liar as being both true and false, are rejected by Kearns as making no ?clear sense? (p. 51). In this critical note, I want to highlight some shortcomings of Kearns' approach that concern a general difficulty for supposed solutions to (semantic) antinomies like the Liar. It i…Read more
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Anita Burdman Feferman and Solomon Feferman, Alfred Tarski: Life and LogicPhilosophy in Review 29 (6): 404. 2009.
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19Leila Haaparanta (Ed.): The Development of Modern Logic (review)Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 42 (1): 189-191. 2011.
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25Transcendental Logic's New ClothesIn Jean-Yves Béziau & Alexandre Costa-Leite (eds.), Perspectives on Universal Logic, Polimetrica. pp. 101. 2007.
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121Internal RealismIn Patricia Hanna (ed.), An Anthology of Philosophical Studies, Atiner. 2006.This essay characterizes a version of internal realism. In §1 I will argue that for semantical reasons we should be realists of a strong kind. In §2 I plead for an internalistic setting of realism starting from the thesis that truth is, at least, not a non-epistemic concept. We have to bear the consequences of this in form of a more complicated concept of truth. The ‘internal’ of ‘internal realism’ points to the justification aspect of truth. The ‘realism’ of ‘internal realism’ points to the cor…Read more
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61How Are Semantic Metarepresentations Built and Processed?Kriterion - Journal of Philosophy 26 (1). 2012.This paper looks at some aspects of semantic metarepresentation. It is mostly concerned with questions more formal, concerning the representation format in semantic metarepresentations, and the way they are processed. §1 distinguishes between metacognition and metarepresentation in a narrow and broad sense. §2 reminds the reader of some main areas where metarepresentations have to be used. The main part considers the ways that metarepresentations are built and processed. §3 introduces some gener…Read more
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40Naturalistic explanations (of linguistic behaviour) have to answer two questions: What is meant by giving a naturalistic explanation, and what does it explain after all? Two kinds of descriptivism present in Wittgenstein´s work are distinguished and applied to Hirsch´s “division problem”. They answer the two questions raised and keeping in mind their distinction is important to assess naturalistic explanations
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60Penelope Maddy , Defending the Axioms: On the Philosophical Foundations of Set Theory . Reviewed byPhilosophy in Review 31 (4): 292-294. 2011.
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30Book Reviews:Patrick Blackburn, Maarten de Rijke and Yde Venema, Modal Logic, Cambridge: Cambridge University Press, 2002, xxii + 554 pp., US$53.00, ISBN 0-52152-714-7 (paperback) (review)Minds and Machines 15 (1): 126-129. 2005.
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18Michael Potter and Tom Ricketts, eds. , The Cambridge Companion to Frege . Reviewed byPhilosophy in Review 32 (4): 319-325. 2012.
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162Varieties of FinitismMetaphysica 8 (2): 131-148. 2007.I consider here several versions of finitism or conceptions that try to work around postulating sets of infinite size. Restricting oneself to the so-called potential infinite seems to rest either on temporal readings of infinity (or infinite series) or on anti-realistic background assumptions. Both these motivations may be considered problematic. Quine’s virtual set theory points out where strong assumptions of infinity enter into number theory, but is implicitly committed to infinity anyway. Th…Read more
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62The book aims to set out in which respects concepts are properly studied in philosophy, what methodological role the study of concepts has in philoso-phy's study of the world. Many of the considerations in this book nowadays are placed under the headline ‘metaphilosophy’. In contrast to paradigmatic ordinary language philosophy the book endorses a representationalist theory of meaning and concepts, thus agreeing with many of its critics in philosophy and the cognitive sciences. In contrast to ma…Read more
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29Jonathan L. Kvanvig, Rationality and Reflection: How to Think About What to Think. Reviewed byPhilosophy in Review 36 (4): 173-175. 2016.Review of Jonathan Kvanvig Rationality and Reflection.
University of Cologne
PhD, 1993
Areas of Specialization
Logic and Philosophy of Logic |
Epistemology |
Areas of Interest
Logic and Philosophy of Logic |
Science, Logic, and Mathematics |