This software is an implementation of an abductive logic programming (ALP) system. The ALP system is a reasoning system for logic programs containing negation as failure (NAF), classical negation, disjunction, and abducible literals. It is based on bottom-up, incremental, backtrack-free computation of the minimal models for disjunctive programs using a model generation theorem prover (MGTP). This system realizes a sound and complete proof procedure for a large class of logic programs, and can deal with abduction and nonmonotonic inference at the same time. This system implements Inoue and Sakama's fixpoint semantics of ALP.
Prolog on UNIX Workstation. The software is tested for running in SICStus Prolog v.2.1#9 on SunOS 4.1.3.
The expanded directory has the following directories and files:
This software will be updated periodically.
Currently, no English manual for ALP-MGTP is available. If you are interested in using ALP-MGTP, please contact the copyright owner: