In this paper I argue that the ‘ambiguity’ between mention-all and mentionsome readings of questions can be resolved when we relate it to the decision problem of the questioner. By relating questions to decision problems, I (i) show how we can measure the utilities of both mention-all and mention-some readings of questions, and (ii) give a natural explanation under which circumstances the menti...

It is shown that theassumption that language is non-finite involves the use of a constructive logic which lea#s to some restrictions on language theory an~ to the fact that the only possible definition of language is that propose~ by ~enerative grammars. Generative grammars can be formulate~ a~ normal /~ar~ov/ algorithms an~ thu~ their study can be reduce~ to the stu#7 of such algorithms of a s...

An infinite first-order structure is minimal if its each definable subset is either finite or co-finite. We formulate three questions concerning order properties of minimal structures which are motivated by Pillay’s Conjecture (stating that a countable first-order structure must have infinitely many countable, pairwise non-isomorphic elementary extensions). In this article a connection between ...

Frans Oort \Een zot kan meer vragen \One fool can ask more questions dan tien wijzen kunnen beantwoorden." than ten wise men can answer." Een oud Nederlands spreekwoord. An old Dutch saying. Introduction In June 1995 several mathematicians will gather in Utrecht for a conference on \Arithmetic and geometry of abelian varieties," and this seems a good occasion to share with them some of the ques...

To the Editor Pourghaznein et al. have reported the results of a fascinating study into the effects of e-learning, lectures, and role playing on knowledge acquisition, retention and satisfaction of nursing students (1). Perhaps, their most interesting finding is related to elearning. E-learning resources have been shown to be an effective and cost-effective method of healthcare professional edu...