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KSEM
2007
Springer
14 years 2 months ago
A Diagrammatic Reasoning System for ALC
Abstract. Description logics (DLs) are a well-known family of knowledge representation (KR) languages. The notation of DLs has the style of a variable-free first order predicate l...
Frithjof Dau, Peter W. Eklund
LOGCOM
2002
72views more  LOGCOM 2002»
13 years 8 months ago
Definability in Rationals with Real Order in the Background
The paper deals with logically definable families of sets (or point-sets) of rational numbers. In particular we are interested whether the families definable over the real line wi...
Yuri Gurevich, Alexander Moshe Rabinovich
ENTCS
2006
94views more  ENTCS 2006»
13 years 8 months ago
Reasoning About Partial Functions in the Formal Development of Programs
Partial functions and operators are used extensively in the formal development of programs and thus development methods have to clarify how to reason about them. There are a numbe...
Cliff B. Jones
MST
2008
119views more  MST 2008»
13 years 8 months ago
Logical Equivalence for Subtyping Object and Recursive Types
Subtyping in first order object calculi is studied with respect to the logical semantics obtained by identifying terms that satisfy the same set of predicates, as formalised throu...
Steffen van Bakel, Ugo de'Liguoro
TOCL
2008
128views more  TOCL 2008»
13 years 8 months ago
A comprehensive combination framework
fragment enjoys suitable noetherianity conditions and admits an abstract version of a `KeislerShelah like' isomorphism theorem. We show that this general decidability transfer...
Silvio Ghilardi, Enrica Nicolini, Daniele Zucchell...