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- Igor Douven
- 1999

Among those addressed by Putnam's model-theoretic argument it is common opinion that the argument is invalid because question-begging. If the standard analysis of the argument is along the right lines, then what has been called the 'just more theory move' is to be held responsible for this. In the present paper, an alternative reading of Putnam's argument… (More)

This paper is concerned with formal solutions to the lottery paradox on which high probability defeasibly warrants acceptance. It considers some recently proposed solutions of this type and presents an argument showing that these solutions are trivial in that they boil down to the claim that perfect probability is sufficient for rational acceptability. The… (More)

- Igor Douven, Alexander Riegler
- Logic Journal of the IGPL
- 2010

Hegselmann and Krause have developed a simple yet powerful computational model for studying the opinion dynamics in societies of epistemically interacting truth-seeking agents. We present various extensions of this model and show their relevance to the investigation of socio-epistemic questions, with an emphasis on normative questions. Agent-based computer… (More)

- Igor Douven, Wouter Meijs
- Synthese
- 2007

- Igor Douven, Sara Verbrugge
- Cognition
- 2010

According to Adams's Thesis, the acceptability of an indicative conditional sentence goes by the conditional probability of its consequent given its antecedent. We test, for the first time, whether this thesis is descriptively correct and show that it is not; in particular, we show that it yields the wrong predictions for people's judgments of the… (More)

- Igor Douven, Lieven Decock, Richard Dietz, Paul Égré
- J. Philosophical Logic
- 2013

The conceptual spaces approach has recently emerged as a novel account of concepts. Its guiding idea is that concepts can be represented geometrically, by means of metrical spaces. While it is generally recognized that many of our concepts are vague, the question of how to model vagueness in the conceptual spaces approach has not been addressed so far, even… (More)

- Igor Douven, Sara Verbrugge
- Cognitive Science
- 2013

According to what is now commonly referred to as "the Equation" in the literature on indicative conditionals, the probability of any indicative conditional equals the probability of its consequent of the conditional given the antecedent of the conditional. Philosophers widely agree in their assessment that the triviality arguments of Lewis and others have… (More)

- Igor Douven, Wouter Meijs
- Synthese
- 2006

Van Fraassen's Judy Benjamin problem has generally been taken to show that not all rational changes of belief can be modelled in a probabilistic framework if the available update rules are restricted to Bayes's rule and Jeffrey's generalization thereof. But alternative rules based on distance functions between probability assignments that allegedly can… (More)

- Igor Douven
- Synthese
- 2008

According to so-called epistemic theories of conditionals, the assertability/ acceptability/acceptance of a conditional requires the existence of an epistemically significant relation between the conditional's antecedent and its consequent. This paper points to some linguistic data that our current best theories of the foregoing type appear unable to… (More)