13 found
Sort by:
  1. Dunja Šešelja & Christian Straßer (forthcoming). Epistemic Justification in the Context of Pursuit: A Coherentist Approach. Synthese:1-31.
    The aim of this paper is to offer an account of epistemic justification suitable for the context of theory pursuit, that is, for the context in which new scientific ideas, possibly incompatible with the already established theories, emerge and are pursued by scientists. We will frame our account paradigmatically on the basis of one of the influential systems of epistemic justification: Laurence Bonjour’s coherence theory of justification. The idea underlying our approach is to develop a set of criteria which indicate (...)
    No categories
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  2. Frederik Van De Putte & Christian Straßer (forthcoming). Preferential Semantics Using Non-Smooth Preference Relations. Journal of Philosophical Logic:1-40.
    This paper studies the properties of eight semantic consequence relations defined from a Tarski-logic L and a preference relation ≺ . They are equivalent to Shoham’s so-called preferential entailment for smooth model structures, but avoid certain problems of the latter in non-smooth configurations. Each of the logics can be characterized in terms of what we call multi-selection semantics. After discussing this type of semantics, we focus on some concrete proposals from the literature, checking a number of meta-theoretic properties and elaborating (...)
    Direct download (4 more)  
     
    My bibliography  
     
    Export citation  
  3. Mathieu Beirlaen & Christian Straßer (2013). Two Adaptive Logics of Norm-Propositions. Journal of Applied Logic 11 (2):147-168.
    We present two defeasible logics of norm-propositions (statements about norms) that (i) consistently allow for the possibility of normative gaps and normative conflicts, and (ii) map each premise set to a sufficiently rich consequence set. In order to meet (i), we define the logic LNP, a conflict- and gap-tolerant logic of norm-propositions capable of formalizing both normative conflicts and normative gaps within the object language. Next, we strengthen LNP within the adaptive logic framework for non-monotonic reasoning in order to meet (...)
    Direct download (2 more)  
     
    My bibliography  
     
    Export citation  
  4. Mathieu Beirlaen, Christian Straßer & Joke Meheus (2013). An Inconsistency-Adaptive Deontic Logic for Normative Conflicts. Journal of Philosophical Logic 42 (2):285-315.
    We present the inconsistency-adaptive deontic logic DP r , a nonmonotonic logic for dealing with conflicts between normative statements. On the one hand, this logic does not lead to explosion in view of normative conflicts such as O A ∧ O ∼A, O A ∧ P ∼A or even O A ∧ ∼O A. On the other hand, DP r still verifies all intuitively reliable inferences valid in Standard Deontic Logic (SDL). DP r interprets a given premise set ‘as normally (...)
    Direct download (7 more)  
     
    My bibliography  
     
    Export citation  
  5. Dunja Šešelja & Christian Straßer (2013). Abstract Argumentation and Explanation Applied to Scientific Debates. Synthese 190 (12):2195-2217.
    argumentation has been shown to be a powerful tool within many fields such as artificial intelligence, logic and legal reasoning. In this paper we enhance Dung’s well-known abstract argumentation framework with explanatory capabilities. We show that an explanatory argumentation framework (EAF) obtained in this way is a useful tool for the modeling of scientific debates. On the one hand, EAFs allow for the representation of explanatory and justificatory arguments constituting rivaling scientific views. On the other hand, different procedures for selecting (...)
    Direct download (4 more)  
     
    My bibliography  
     
    Export citation  
  6. Dunja Šešelja & Christian Straßer (2013). Kuhn and the Question of Pursuit Worthiness. Topoi 32 (1):9-19.
    The aim of this paper is, on the one hand, to critically investigate Kuhn’s stance on the assessment of the pursuit worthiness of scientific theories, and, on the other hand, to show the actuality of some of Kuhn’s points on this issue, in view of their critical analysis. To this end we show that Kuhn presents certain tools, which may help scientists to overcome communication breakdowns when engaging in the process of rational deliberation regarding the question whether a theory is (...)
    Direct download (7 more)  
     
    My bibliography  
     
    Export citation  
  7. Christian Straßer (2012). Adaptively Applying Modus Ponens in Conditional Logics of Normality. Journal of Applied Non-Classical Logics 22 (1-2):125-148.
    This paper presents an adaptive logic enhancement of conditional logics of normality that allows for defeasible applications of Modus Ponens to conditionals. In addition to the possibilities these logics already offer in terms of reasoning about conditionals, this way they are enriched by the ability to perform default inferencing. The idea is to apply Modus Ponens defeasibly to a conditional and a fact on the condition that it is ?safe' to do so concerning the factual and conditional knowledge at hand. (...)
    Direct download (3 more)  
     
    My bibliography  
     
    Export citation  
  8. Christian Straßer, Mathieu Beirlaen & Joke Meheus (2012). Tolerating Deontic Conflicts by Adaptively Restricting Inheritance. Logique Et Analyse 55 (219):477.
    Direct download  
     
    My bibliography  
     
    Export citation  
  9. Frederik Van De Putte & Christian Straßer (2012). Extending the Standard Format of Adaptive Logics to the Prioritized Case. Logique Et Analyse 120.
    Direct download  
     
    My bibliography  
     
    Export citation  
  10. Christian Straßer (2010). An Adaptive Logic Framework for Conditional Obligations and Deontic Dilemmas. Logic and Logical Philosophy 19 (1-2):95-128.
    Lou Goble proposed powerful conditional deontic logics (CDPM) that are able to deal with deontic conflicts by means of restricting the inheritance principle. One of the central problems for dyadic deontic logics is to properly treat the restricted applicability of the principle “strengthening the antecedent”. In most cases it is desirable to derive from an obligation A under condition B, that A is also obliged under condition B and C. However, there are important counterexamples. Goble proposed a weakened rational monotonicity (...)
    Direct download (7 more)  
     
    My bibliography  
     
    Export citation  
  11. Diderik Batens, Christian Straßer & Peter Verdée (2009). On the Transparency of Defeasible Logics: Equivalent Premise Sets, Equivalence of Their Extensions, and Maximality of the Lower Limit. Logique Et Analyse 207:281-304.
    Direct download  
     
    My bibliography  
     
    Export citation  
  12. Dunja Šešelja & Christian Straßer (2009). Kuhn and Coherentist Epistemology. Studies in History and Philosophy of Science Part A 40 (3):322-327.