Each of these require different sorts of elements and constraints. These kinds of coherence are explanatory, analogical, deductive, perceptual and conceptual coherence. In their model epistemic coherence is understood in terms of maximization of constrain satisfaction.Īccording to this model knowledge involves at least five different kinds of coherence. It namely well be that we see some concepts similar, because they are part of the very same category, and thus one needs an independent theory of similarity (Quine, 1977, also Murphy and Medin, 1985).Īnother, interesting and theoretically deep analysis of the notion of coherence is proposed by Thagard, Chris Eliasmith ( he is my personal idol!!!) and their colleagues (Thagard and Verbeugt, 1998, Thagard, Eliasmith & et al). Of course, as was pointed out by Quine, using similarity as the basis of concepts will raise the very same question again. The basic idea is that objects fall into natural clusters of similar kinds, and our concepts map into these concepts. (The sun was shining and so on…) As well know, t here are several ways to interpret philosophically the notion of (conceptual) coherence.įor instance, one way is to say that the notion of coherence can be simply defined as the similarity of certain concepts. Quite recently I started to think the notion of coherence in the context of cognitive sciences.
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