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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, 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, 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, Wouter Meijs
- Synthese
- 2007

- Karolina Krzyzanowska, Sylvia Wenmackers, Igor Douven
- Journal of Logic, Language and Information
- 2013

Many conditionals seem to convey the existence of a link between their antecedent and consequent. We draw on a recently proposed typology of conditionals to argue for an old philosophical idea according towhich the link is inferential in nature. We show that the proposal has explanatory force by presenting empirical results on the evidential meaning of… (More)

- Igor Douven, Jonah N. Schupbach
- Front. Psychol.
- 2015

There has been a probabilistic turn in contemporary cognitive science. Far and away, most of the work in this vein is Bayesian, at least in name. Coinciding with this development, philosophers have increasingly promoted Bayesianism as the best normative account of how humans ought to reason. In this paper, we make a push for exploring the probabilistic… (More)

- Igor Douven, Jonah N. Schupbach
- Cognition
- 2015

There is an ongoing controversy in philosophy about the connection between explanation and inference. According to Bayesians, explanatory considerations should be given weight in determining which inferences to make, if at all, only insofar as doing so is compatible with Strict Conditionalization. Explanationists, on the other hand, hold that explanatory… (More)

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
- 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)