Nonmonotonic Logic
نویسنده
چکیده
منابع مشابه
An S4F-related Monotonic Modal Logic
This paper introduces a novel monotonic modal logic, allowing us to capture the nonmonotonic variant of the modal logic S4F: we add a second new modal operator into the original language of S4F, and show that the resulting formalism is strong enough to characterise the logical consequence of (nonmonotonic) S4F, as well as its minimal model semantics. The latter underlies major forms of nonmonot...
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We investigate the problem of reasoning in nonmonotonic extensions of rst-order logic. In particular, we study reasoning in rst-order MKNF, the modal logic of minimal knowledge and negation as failure introduced by Lifschitz. MKNF can be considered as a unifying framework for several nonmonotonic formalisms, including default logic, autoepistemic logic, circumscription, and logic programming. B...
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We define a nonmonotonic formalism that shares some features with three other systems of nonmonotonic reasoning—default logic, logic programming with strong negation, and nonmonotonic causal logic—and study its possibilities as a language for describing actions. 1998 ACM Subject Classification D.1.6 Logic Programming
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This paper presents a study of the nonmonotonic consequence relation which models the skeptical reasoning formalised by constrained default logic. The nonmonotonic skeptical consequence relation is defined using the sequent calculus axiomatic system. We study the formal properties desirable for a “good” nonmonotonic relation: supraclassicality, cut, cautious monotony, cumulativity, absorption, ...
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