the paper presents a logical framework to model some aspects of contextuality; i.e., generating contexts in a multi-context setting. Following the existing work on extended logicprogramming and multi-agent systems, a...
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the paper presents a logical framework to model some aspects of contextuality; i.e., generating contexts in a multi-context setting. Following the existing work on extended logicprogramming and multi-agent systems, a contextual reasoning procedure for a particular class of multi-context systems, the law ones, is proposed based on Grice's maxims (1975), which in turn are used to support a larger set of contexts by combining contexts into compound structures, thus defining a logic of contexts. the notion of compound contexts reflects the beliefs, desires, intentions and obligations, among others, that depend on the problem, leading to a variety of dynamic context formations. In its applied form, the Portuguese Public Prosecution Service is considered, which is the state body entrusted with representing the state, bringing criminal cases to court, defending democratic legality, and any other interests that the law determines.
Although mathematically elegant, partial orders limit the representation of taxonomic knowledge to subsort-supersort (or isa) relationships. We cannot, for example, directly state that two sorts are incompatible or de...
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the proceedings contain 21 papers. the special focus in this conference is on Extensions of logicprogramming. the topics include: Semantics of constraint logic programs with bounded quantifiers;translating a modal la...
ISBN:
(纸本)9783540609834
the proceedings contain 21 papers. the special focus in this conference is on Extensions of logicprogramming. the topics include: Semantics of constraint logic programs with bounded quantifiers;translating a modal language with embedded implication into horn clause logic;pruning the search space of logic programs;a significant extension of logicprogramming by adapting model building rules;efficient resource management for linear logic proof search;a logic language based on GAMMA-like multiset rewriting;handling equality in logicprogramming via basic folding;an abstract machine for reasoning about situations, actions, and causality;on the computational complexity of propositional logic programs with nested implications;proof-theory for extensions of logicprogramming;a fibrational semantics for logic programs;language and implementation;a new framework for declarative programming;extending constructive negation for partial functions in lazy functional-logic languages;total correctness of logic programs;a declarative semantics for the prolog cut operator;a definitional approach to functional logicprogramming;soundness and completeness of non-classical extended SLD-resolution and some postulates for nonmonotonic theory revision applied to logicprogramming.
A term rewriting system is strongly innermost normalizing if every innermost derivation of it is of finite length. this property is very important in the integration of functional and logicprogramming paradigms. Unli...
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the proceedings contain 28 papers. the special focus in this conference is on theorem Proving in Higher Order logics. the topics include: Translating specifications in VDM-SL to PVS;a comparison of HOL and ALF formali...
ISBN:
(纸本)9783540615873
the proceedings contain 28 papers. the special focus in this conference is on theorem Proving in Higher Order logics. the topics include: Translating specifications in VDM-SL to PVS;a comparison of HOL and ALF formalizations of a categorical coherence theorem;modeling a hardware synthesis methodology in isabelle;inference rules for programming languages with side effects in expressions;deciding cryptographic protocol adequacy with HOL;proving liveness of fair transition systems;program derivation using the refinement calculator;a proof tool for reasoning about functional programs;coq and hardware verification;elements of mathematical analysis in PVS;implementation issues about the embedding of existing high level synthesis algorithms in HOL;five axioms of alpha-conversion;set theory, higher order logic or both;a mizar mode for HOL;towards applying the composition principle to verify a microkernel operating system;a modular coding of unity in coq;importing mathematics from HOL into nuprl;a structure preserving encoding of Z in Isabelle/HOL;improving the result of high-level synthesis using interactive transformational design;using lattice theory in higher order logic;verification of compiler correctness for the WAM;another logic of computable functions;function definition in higher order logic;higher order annotated terms for proof search;a comparison of MDG and HOL for hardware verification and a mechanisation of computability theory in HOL.
the proceedings contain 63 papers. the special focus in this conference is on Automated Deduction. the topics include: A resolution theorem prover for intuitionistic logic;proof-terms for classical and intuitionistic ...
ISBN:
(纸本)3540615113
the proceedings contain 63 papers. the special focus in this conference is on Automated Deduction. the topics include: A resolution theorem prover for intuitionistic logic;proof-terms for classical and intuitionistic resolution;proof-search in intuitionistic logic with equality, or back to simultaneous rigid E-unification;extensions to a generalization critic for inductive proof;learning domain knowledge to improve theorem proving;patching faulty conjectures;internal analogy in theorem proving;termination of theorem proving by reuse;termination of algorithms over non-freely generated data types;a proof checker with abstraction;the design of the CADE-13 ATP system competition;elimination of predicate quantifiers;a geometry theorem prover;structuring metatheory on inductive definitions;an embedding of ruby in isabelle;mechanical verification of mutually recursive procedures;decentralized traffic control system based on logicprogramming;presenting machine-found proofs;towards an expert system for many-valued logics;a system presentation;an introduction to geometry expert;simple competitive parallel theorem provers;unification algorithms cannot be combined in polynomial time;unification and matching modulo nilpotence;an improved lower bound for the elementary theories of trees;prolog technology theorem prover for default reasoning;an updated system description;generating models by SEM;optimizing proof search in model elimination;an abstract machine for fixed-order dynamically stratified programs;unification in pseudo-linear sort theories is decidable;theorem proving with group presentations;transforming termination by self-labelling;theorem proving in cancellative abelian monoids and on the practical value of different definitional translations to normal form.
the proceedings contain 30 papers. the special focus in this conference is on CASE Environments, Temporal, Active Database Technologies, Experience Reports and Interoperability in Information Systems. the topics inclu...
ISBN:
(纸本)3540612920
the proceedings contain 30 papers. the special focus in this conference is on CASE Environments, Temporal, Active Database Technologies, Experience Reports and Interoperability in Information Systems. the topics include: A fully configurable multi-user and multi-tool case and came environment;a computer aided requirements engineering environment;a logic-based framework for reasoning support in software evolution;a temporal active language and execution model;tool-based re-engineering of a legacy MIS;developing an information system using troll;active relationships for controlling the propagation of information and activities in databases;multi-data models translations in interoperable information systems;interoperable transactions in business models;on information modeling to support interoperable spatial databases;guidelines for formalizing fusion object-oriented analysis models;handling conceptual model validation by planning;the world-wide web as a platform for supporting interactive concurrent engineering;context-driven information base update;managing overlapping transactional workflows;shared data management mechanism for distributed software development based on a reflective object-oriented model;agent-based tool integration for distributed information systems;cognitive biases in information modeling;the role of benchmarking in information system development;user-enhanceability for organizational information systems through visual programming;advanced primitives for changing schemas of object databases;views for information system design without reorganization;semantics, features, and applications of the viewpoint abstraction and towards a content-based data model for information retrieval.
In this paper we propose a logicprogramming language which supports hypothetical updates together with integrity constraints. the language allows sequences of updates by sets of atoms and it makes use of a revision m...
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ISBN:
(纸本)3540594876
In this paper we propose a logicprogramming language which supports hypothetical updates together with integrity constraints. the language allows sequences of updates by sets of atoms and it makes use of a revision mechanism to restore consistency when an update violates some integrity constraint. the revision policy we adopt is based on the simple idea that more recent information is preferred to earlier one. this language can be used to perform several types of defeasible reasoning. We define a goal-directed proof procedure for the language and develope a logical characterization in a modal logic by introducing an abductive semantics.
the BQM1 system extends deductive database technology with knowledge structuring capabilities to provide an advanced environment for the development of data and knowledge-based applications. the system relies on a kno...
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ISBN:
(纸本)0818673125
the BQM1 system extends deductive database technology with knowledge structuring capabilities to provide an advanced environment for the development of data and knowledge-based applications. the system relies on a knowledge representation language that combines the declarativeness of logicprogramming withthe notions of object, inheritance with exceptions, and message passing. Exceptions are supported by allowing rules with negated heads. the use of exceptions inside the inheritance mechanism makes the language inherently nonmonotonic. the paper describes BQM focusing on boththe language and the implementation techniques. An informal overview of the language is first given. then, a number of techniques for efficient query evaluation are presented. these techniques significantly extend 'traditional' deductive database query evaluation strategies to deal with nonmonotonic reasoning. A description of the architecture of the current prototype of the BQM system is also given.
the new HELIC-II is a software tool for legal reasoning. It consists of two functions - argumentation function and debating function. Argumentation function is realized by a typed logicprogramming language with gener...
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the new HELIC-II is a software tool for legal reasoning. It consists of two functions - argumentation function and debating function. Argumentation function is realized by a typed logicprogramming language with generalization of rules and defeasible reasoning based on priority of rules. Debating function is realized by meta knowledge which controls the argumentation function. this paper introduces overview of the new HELIC-II system. We show how legal knowledge is represented in the new HELIC-II illustrated by presenting the example of an actual criminal case.
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