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Christoph Lumer
University Of Siena
  1.  21
    Arguments From Expert Opinion – An Epistemological Approach.Christoph Lumer - 2020 - In Catarina Dutilh Novaes, Henrike Jansen, Jan Albert Van Laar & Bart Verheij (eds.), Reason to Dissent. Proceedings of the 3rd European Conference on Argumentation. College Publications. pp. 403-422.
    In times of populist mistrust towards experts, it is important and the aim of the paper to ascertain the rationality of arguments from expert opinion and to reconstruct their rational foundations as well as to determine their limits. The foundational approach chosen is probabilistic. However, there are at least three correct probabilistic reconstructions of such argumentations: statistical inferences, Bayesian updating, and interpretive arguments. To solve this competition problem, the paper proposes a recourse to the arguments' justification strengths achievable in the (...)
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  2.  15
    Knowledge and the Epistemic Function of Argumentation – Comment on Gascón's "Where Are Dissent and Reasons in Epistemic Justification?".Christoph Lumer - 2020 - In Catarina Dutilh Novaes, Henrike Jansen, Jan Albert Van Laar & Bart Verheij (eds.), Reason to Dissent. Proceedings of the 3rd European Conference on Argumentation. College Publications. pp. 219-224.
    José Ángel Gascón’s essay "Where are dissent and reasons in epistemic justification?" is an exposition of a version of a social functionalist epistemology. I agree with Gascón's emphasis on reasons and on taking into account dissent as important parts of epistemology. But I think that these concerns do not require a social functionalist epistemology, but that, on the contrary, Gascón's social functionalist epistemology throws the baby out with the bathwater. It does so by excluding also a traditional, at its core (...)
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  3. Recognizing Argument Types and Adding Missing Reasons.Christoph Lumer - 2019 - In Bart J. Garssen, David Godden, Gordon Mitchell & Jean Wagemans (eds.), Proceedings of the Ninth Conference of the International Society for the Study of Argumentation (ISSA). [Amsterdam, July 3-6, 2018.]. Amsterdam (Netherlands): pp. 769-777.
    The article develops and justifies, on the basis of the epistemological argumentation theory, two central pieces of the theory of evaluative argumentation interpretation: 1. criteria for recognizing argument types and 2. rules for adding reasons to create ideal arguments. Ad 1: The criteria for identifying argument types are a selection of essential elements from the definitions of the respective argument types. Ad 2: After presenting the general principles for adding reasons (benevolence, authenticity, immanence, optimization), heuristics are proposed for finding missing (...)
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  4. Intentions Are Optimality Beliefs – But Optimizing What?Christoph Lumer - 2005 - Erkenntnis 62 (2):235-262.
    In this paper an empirical theory about the nature of intention is sketched. After stressing the necessity of reckoning with intentions in philosophy of action a strategy for deciding empirically between competing theories of intention is exposed and applied for criticizing various philosophical theories of intention, among others that of Bratman. The hypothesis that intentions are optimality beliefs is defended on the basis of empirical decision theory. Present empirical decision theory however does not provide an empirically satisfying elaboration of the (...)
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  5. Praktische Argumentationstheorie. Theoretische Grundlagen, praktische Begründung und Regeln wichtiger Argumentationsarten.Christoph Lumer - 1990 - Braunschweig, Germany: Vieweg.
    Das spezifische Ziel von Argumentationen ist nicht einfach, den Adressaten etwas glauben zu machen - dies wäre bloße Rhetorik ﷓, sondern: den Adressaten beim Erkennen der Akzeptabilität (insbesondere der Wahrheit) der These anzuleiten und ihn so zu begründetem Glauben, zu Erkenntnis zu führen. Argumentationen leiten das Erkennen an, indem sie in ihren Argumenten hinreichende Akzeptabilitätsbedingungen der These als erfüllt beurteilen und so den Adressaten implizit auffordern, diese Bedingungen zu überprüfen. Argumentationen sind gültig, wenn sie prinzipiell das Erkennen anleiten können; d. (...)
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  6. Unconscious Motives and Actions – Agency, Freedom and Responsibility.Christoph Lumer - 2019 - Frontiers in Psychology 9.
    According to many criteria, agency, intentionality, responsibility and freedom of decision, require conscious decisions. Freud already assumed that many of our decisions are influenced by dynamically unconscious motives or that we even perform unconscious actions based on completely unconscious considerations. Such actions might not be intentional, and perhaps not even actions in the narrow sense, we would not be responsible for them and freedom of decision would be missing. Recent psychological and neurophysiological research has added to this a number of (...)
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  7.  41
    Probabilistic Arguments in the Epistemological Approach to Argumentation.Christoph Lumer - 2011 - In Frans H. Van Eemeren, Bart Garssen, David Godden & Gordon Mitchell (eds.), Proceedings of the 7th Conference of the International Society for the Study of Argumentation. Amsterdam, Netherlands: Rozenberg; Sic Sat. pp. 1141-1154.
    The aim of the paper is to develop general criteria of argumentative validity and adequacy for probabilistic arguments on the basis of the epistemological approach to argumentation. In this approach, as in most other approaches to argumentation, proabilistic arguments have been neglected somewhat. Nonetheless, criteria for several special types of probabilistic arguments have been developed, in particular by Richard Feldman and Christoph Lumer. In the first part (sects. 2-5) the epistemological basis of probabilistic arguments is discussed. With regard to the (...)
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  8.  53
    Libertà del volere – dalla filosofia teoretica alla filosofia pratica. Un dialogo con Sandro Nannini.Christoph Lumer - 2018 - In Christoph Lumer & Giacomo Romano (eds.), Dalla filosofia dell’azione alla filosofia della mente. Riflessioni in onore di Sandro Nannini. Messina, Italy: corisco. pp. 53-84.
    The article, first, reconstructs and criticizes Sandro Nannini’s incompatibilistic concept of freedom of decision and, second, develops a compatibilistic alternative, a synthesis of a rationalistic and an autonomous approach. Nannini justifies his conception primarily from a naturalistic point of view: it reflects our sense of agency, so he says. This is criticized as empirically wrong and methodically mistaken: The theory of freedom of decision is, actually, normative; it is about good decisions; naturalism cannot establish normative claims. The alternative is based, (...)
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  9.  97
    Strength of Justification – The Rational Degree of Certainty Approach.Christoph Lumer - 2018 - In Steve Oswald (ed.), Argumentation and Inference. Proceedings of the 2nd European Conference on Argumentation, Fribourg 2017. London, GB: College Publications. pp. 315-333.
    In this paper, I present the fundamental ideas of a new theory of justification strength. This theory is based on the epistemological approach to argumentation. Even the thesis of a valid justification can be false for various reasons. The theory outlined here identifies such possible errors. Justification strength is equated with the degree to which such possible errors are excluded. The natural expression of this kind of justification strength is the (rational) degree of certainty of the belief in the thesis.
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  10.  51
    Argument Schemes—an Epistemological Approach.Christoph Lumer - 2011 - Argumentation. Cognition and Community. Proceedings of the 9th International Conference of the Ontario Society for the Study of Argumentation (OSSA), May 18-22, 2011.
    The paper develops a classificatory system of basic argument types on the basis of the epis-temological approach to argumentation. This approach has provided strict rules for several kinds of argu-ments. These kinds may be brought into a system of basic irreducible types, which rely on different parts of epistemology: deductive logic, probability theory, utility theory. The system reduces a huge mass of differ-ent argument schemes to basic types and gives them an epistemological foundation.
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  11.  32
    Libertà del volere – dalla filosofia teoretica alla filosofia pratica. Un dialogo con Sandro Nannini.Christoph Lumer - 2018 - In Christoph Lumer & Giacomo Romano (eds.), Libertà del volere – dalla filosofia teoretica alla filosofia pratica. Un dialogo con Sandro Nannini. Roma; Messina (Italy): corisco. pp. 53-84.
    The article, first, reconstructs and criticizes Sandro Nannini’s incompatibilistic concept of freedom of decision and, second, develops a compatibilistic alternative, a synthesis of a rationalistic and an autonomous approach. Nannini justifies his conception primarily from a naturalistic point of view: it reflects our sense of agency, so he says. This is criticized as empirically wrong and methodically mistaken: The theory of freedom of decision is, actually, normative; it is about good decisions; naturalism cannot establish normative claims. The alternative is based, (...)
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  12.  85
    Morality in Times of Naturalising the Mind – An Overview.Christoph Lumer - 2014 - In Morality in Times of Naturalising the Mind. Boston; Berlin, Germany: De Gruyter. pp. 3-42.
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  13.  44
    Commentary on “On Appeals to Models”: Appeals to Visual Models – An Epistemological Reconstruction of an Argument Type.Christoph Lumer - unknown
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  14. Subjunctive Tu Quoque Arguments. Commentary on Anderson, Aikin & Casey.Christoph Lumer - 2011 - Argumentation. Cognition and Community. Proceedings of the 9th International Conference of the Ontario Society for the Study of Argumentation (OSSA).
    Tu quoque arguments regard inconsistencies in some speaker‘s performance. Most tu quoque arguments depend on actual inconsistencies. However, there are forms of tu quoque arguments that key, instead, on the conflicts a speaker would have, were some crucial contingent fact different. These, we call subjunctive tu quoque arguments. Finally, there are cases wherein the counterfactual inconsistencies of a speaker are relevant to the issue.
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  15.  67
    Habermas' Diskursethik.Christoph Lumer - 1997 - Zeitschrift für Philosophische Forschung 51 (1):42 - 64.
    Zunächst werden die Kernthesen von Habermas' Diskursethik vorgestellt, insbesondere der Universalisierungsgrundsatz U und das diskursethische Prinzip D. Eine ausführliche Analyse zeigt dann, daß Habermas' Argumentationen für diese Prinzipien in mehrfacher Hinsicht ungültig sind. Die Betrachtung früherer Varianten dieser Argumentationen und späterer Kommentare Habermas' macht zudem eine gewisse Wendung Habermas' weg von der Transzendentalpragmatik hin zum Intuitionismus und eine Abschwächung seines Begründungsanspruchs bis hin zu dessen Annullierung deutlich. Eine Kritik an vier Interpretationen von U selbst und an den beiden Hauptinterpretationen von (...)
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  16. Dalla filosofia dell’azione alla filosofia della mente – Riflessioni in onore di Sandro Nannini.Christoph Lumer & Giacomo Romano (eds.) - 2018 - Roma; Messina (Italy): corisco.
    “Dalla filosofia dell’azione alla filosofia della mente” è stato il percorso di alcuni filosofi di nazionalità varia degli anni 1980 – come Paul Churchland negli Stati Uniti o Ansgar Beckermann in Germania – che prima si sono interessati agli aspetti più teorici nella filosofia dell’azione, come il modo di funzionamento delle azioni e la loro spiegazione scientifica, e che poi, con l’arrivo e la diffusione dei personal computers e delle scienze cognitive, hanno ampliato e approfondito questo interesse di ricerca e (...)
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