نتایج جستجو برای: p extension
تعداد نتایج: 1403585 فیلتر نتایج به سال:
Given a Boolean algebra B and an embedding e : B → P(N)/ fin we consider the possibility of extending each or some automorphism of B to the whole P(N)/ fin. Among other things, we show, assuming CH, that for a wide class of Boolean algebras there are embeddings for which no non-trivial automorphism can be extended.
In this paper, we propose the logic Pmin , which is a nonmonotonic extension of Preferential logic P defined by Kraus, Lehmann and Magidor (KLM). In order to perform nonmonotonic inferences, we define a “minimal model” semantics. Given a modal interpretation of a minimal A-world as A ∧ ¬A, the intuition is that preferred, or minimal models are those that minimize the number of worlds where ¬ ¬A...
Background and Objective: Eccentric exercises and taping have been claimed to be an efficient method to improve the symptoms of tennis elbow. The objective of this study was to compare the effect of the implementation of a six-week-eccentric training program with and without taping on grip strength, wrist and middle finger extension in female athletes with tennis elbow. Materials and Methods...
In this paper we propose a generalization of the extension complexity of a polyhedron Q. On the one hand it is general enough so that all problems in P can be formulated as linear programs with polynomial size extension complexity. On the other hand it still allows non-polynomial lower bounds to be proved for NP -hard problems independently of whether or not P = NP . The generalization, called ...
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