This module is part of LKIF-Core, version 1.0.3, part of Deliverable 1.4 of ESTRELLA, IST-2004-027665 LKIF-Core, version 1.0.3, copyright (C) 2007, the ESTRELLA consortium The LKIF-Core ontology, version 1.0, is part of Deliverable 1.4 of the European project for Standardised Transparent Representations in order to Extend Legal Accessibility (ESTRELLA, IST-2004-027665), http://www.estrellaproject.org The use of this ontology, and the OWL files through which it is distributed, is covered by the GNU Lesser General Public License (LGPL), version 2.1 (http://www.gnu.org/copyleft/lesser.html) in as far as the copyright is not covered by additional restrictions of the ESTRELLA consortium agreement (info@estrellaproject.org). The LGPL license places copyright restrictions on the ontology itself but does not apply these restrictions to software that merely links with concepts defined in the ontology library. Please read the license restrictions before using this work. Partner contributions from the University of Amsterdam (UvA) and the Fraunhofer institute (FOKUS). Authors: Rinke Hoekstra (UvA), Thomas Gordon (FOKUS) This ontology describes the classes and properties used in the LKIF rules language, as specified in Deliverable 1.1. Please note that the definition of SWRL rules is not imported into this ontology. This extension will be realised through an argumentation rules framework. An assumption is some atom held to be true, without proof, in the head of a rule (defeasibly), cf. Deliverable 1.1 An atom is the most basic (undivisible) part of an LKIF rule (cf. Deliverable 1.1) A valid LKIF rule An LKIF rule, based on swrl:Impl An exception states an exception to the head of the rule (defeasibly), cf. Deliverable 1.1 An argument is some rule used in argumentation (cf. Deliverable 1.1) A negated atom is the negation of some other atom (cf. Deliverable 1.1) Some predicate in or over some rule Specifies a prior relation between two rules Specifies an exclusion relation between a rule and an atom Specifies whether some rule applies to some atom Specifies whether some rule abuts another rule