Belief states are only contingently connected with the objects of belief. Burge's examples show that the same belief state can be associated with different objects of belief. Kripke's puzzle shows that the same object of belief can be associated with different belief states. Nevertheless, belief states can best be characterized by a subset of the propositions one believes, namely those one directly or immediately believes. The rest of the things one believes are believed indirectly, by virtue of one's direct beliefs. (...) This distinction sheds light on Kripke's puzzle, the problem of the contingent a priori, and the problem of logical omniscience. (shrink)

In spite of alleged differences in purpose, descriptive and computational linguistics share many problems, due to the fact that any precise study on language needs some form of knowledge representation. This constraint is mostly apparent when interpretation of sentences takes into account elements of the so-called “context”. The parametrization of context, i.e. the explicit listing of features relevant to some intepretation task, is difficult because it requires flexible formal structures for understanding or simulating inferential behaviour, as well as a large (...) amount of information about conventional structures in the given language. This paper aims at illustrating major difficulties in these two fields, in relation with the necessity of a contextual approach. It offers a (clearly partial) enumeration of open problems inthe reperesentation of commonsense knowledge and languages-dependent structures, with some attempt to delineate future solutions. (shrink)