Relative overlap measures of coherence have recently been shown to have two devastating properties: according to the plain relative overlap measure, the degree of coherence of any set of propositions cannot be increased by adding further propositions, and according to the refined relative overlap measure, no set can be more coherent than its most coherent two-element subset. This result has been taken to rule out relative overlap as a foundation for a probabilistic explication of coherence. The present paper shows that (...) this view is premature: we propose a relative overlap measure that does not fall victim to the two properties. The guiding idea is to employ a well-established recipe for the construction of coherence measures and to adapt it to the idea of relative overlap. We show that this new measure keeps up with, or even outperforms, former overlap measures in a set of desiderata for coherence measures and a collection of popular test cases. This result re-establishes relative overlap as a candidate for a proper formalization of coherence. (shrink)

The Role of the Notion of Truth in the Project of Kant’s Critical Philosophy [English] The discussion about Kant’s theory of truth usually revolves around his ascription to some version of the coherence or correspondence theory of truth, and the matching criteria of truth. These discussions often deliberate which theory of truth is most appropriate given the critical principles. Instead, this paper aims to exhibit, through the evolution of Kant’s notion of truth in his precritical years and through the project (...) of a transcendental logic, the intrinsic relation between the notion of truth and the very principles of critical philosophy; and to raise again the questions about the definition and the criteria of truth, but in the framework of the question of the possibility of truth. [Español] La discusión en torno a la teoría kantiana de la verdad suele girar alrededor de las preguntas —íntimamente relacionadas entre sí— por la adscripción de Kant a una versión coherentista o correspondentista de la verdad y por los correspondientes criterios de verdad. Estas discusiones suelen ponderar qué teoría de la verdad resulta más adecuada dados ya los principios críticos. En contraste con esto, este trabajo pretende mostrar, a través de la evolución de la noción de verdad del Kant precrítico y del proyecto de una lógica trascendental, la vinculación intrínseca de la noción de verdad con los principios mismos de la filosofía crítica, y replantear las preguntas por la definición y el criterio de verdad en el marco de la pregunta por la posibilidad de la verdad. (shrink)

A measure of coherence is said to be truth conducive if and only if a higher degree of coherence (as measured) results in a higher likelihood of truth. Recent impossibility results strongly indicate that there are no (non-trivial) probabilistic coherence measures that are truth conducive. Indeed, this holds even if truth conduciveness is understood in a weak ceteris paribus sense (Bovens & Hartmann, 2003, Bayesian epistemology. New York, Oxford: Oxford University Press; Olsson, 2005, Against coherence: Truth probability and justification. Oxford: (...) Oxford University Press). This raises the problem of how coherence could nonetheless be an epistemically important property. Our proposal is that coherence may be linked in a certain way to reliability. We define a measure of coherence to be reliability conducive if and only if a higher degree of coherence (as measured) results in a higher probability that the information sources are reliable. Restricting ourselves to the most basic case, we investigate which coherence measures in the literature are reliability conducive. It turns out that, while a number of measures fail to be reliability conducive, except possibly in a trivial and uninteresting sense, Shogenji’s measure and several measures generated by Douven and Meijs’s recipe are notable exceptions to this rule. (shrink)

It is a pleasure for me to give this opening address to the Royal Institute of Philosophy Conference on ‘Explanation’ for two reasons. The first is that it is succeeded by exciting symposia and other papers concerned with various special aspects of the topic of explanation. The second is that the conference is being held in my old alma mater, the University of Glasgow, where I did my first degree. Especially due to C. A. Campbell and George Brown there was (...) in the Logic Department a big emphasis on absolute idealism, especially F. H. Bradley. My inclinations were to oppose this line of thought and to espouse the empiricism and realism of Russell, Broad and the like. Empiricism was represented in the department by D. R. Cousin, a modest man who published relatively little, but who was of quite extraordinary philosophical acumen and lucidity, and by Miss M. J. Levett, whose translation of Plato's Theaetetus formed an important part of the philosophy syllabus. (shrink)