Inaccessible worlds.
نویسندگان
چکیده
منابع مشابه
Inaccessible Worlds and Irrelevance: Preliminary Report
Recently, the relationship between several forms of default reasoning based on conditional defaults has been investigated. In particular, the systems based on ε-semantics, preferential models, and (fragments of) modally-defined conditional logics have been shown to be equivalent. These systems form a plausible core for default inference, but are too weak in general, failing to deal adequately w...
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With the development of new instruments as telecommunication, teleoperation, computer representation tools, human beings are commonly in situation to perceive and act on spaces that are more and more distant or different from our physical world. These new tools raise nowadays the question of Presence of these distant spaces with a growing intensity. This question crosses disciplines as differen...
متن کاملAre referred inaccessible human primary molar teeth really inaccessible?
Despite a body of compelling evidence pertaining to the root canal accessibility of primary teeth, the number of referrals for inaccessibility of primary molars is considerable. The aim of the present study was to evaluate the prevalence of true and false primary molar inaccessibility among subjects who had been referred by general and pediatric dentists. We examined 199 primary molars in 156 p...
متن کاملInaccessible Varieties of Groups
A weak but still unsolved version of the first half of Problem 7 in Hanna Neumann's book [5] asks whether the product 1193 of a nontrivial join-irreducible variety VL and an arbitrary variety 93 is necessarily also join-irreducible. One of the results of this paper is a positive answer provided either It is abelian or the infiniterank free groups of IX have no nontrivial abelian verbal subgroup...
متن کاملInaccessible Singularities in Toral Cosmology
The familiar Bang/Crunch singularities of classical cosmology have recently been augmented by new varieties: rips, sudden singularities, and so on. These tend to be associated with final states. Here we consider an alternative possibility for the initial state: a singularity which has the novel property of being inaccessible to physically well-defined probes. These singularities arise naturally...
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ژورنال
عنوان ژورنال: Notre Dame Journal of Formal Logic
سال: 1983
ISSN: 0029-4527
DOI: 10.1305/ndjfl/1093870378