net.sf.tweety.logics.ml.reasoner

Class MleanCoPReasoner

java.lang.Object

net.sf.tweety.logics.ml.reasoner.AbstractModalReasoner

net.sf.tweety.logics.ml.reasoner.MleanCoPReasoner

All Implemented Interfaces:

QualitativeReasoner<ModalBeliefSet,FolFormula>, Reasoner<java.lang.Boolean,ModalBeliefSet,FolFormula>

public class MleanCoPReasoner
extends AbstractModalReasoner

Invokes MleanCoP (http://www.leancop.de/mleancop/), a compact automated theorem prover for modal first-order logic based on the clausal connection calculus. It checks whether a given formula is valid.
NOTE: Make sure to set the PROVER_PATH variable in the mleancop.sh script to the location of the mleancop files (= the Prolog files).

Author:

Anna Gessler, Matthias Thimm

Field Summary

Fields

Modifier and Type	Field and Description
private Shell	bash Shell to run MleanCoP.
private java.lang.String	scriptLocation String representation of the mleancop.sh path.

Fields inherited from class net.sf.tweety.logics.ml.reasoner.AbstractModalReasoner

defaultReasoner

Constructor Summary

Constructors

Constructor and Description
MleanCoPReasoner(java.lang.String location) Constructs a new instance pointing to a specific MleanCoProver.
MleanCoPReasoner(java.lang.String location, Shell bash) Constructs a new instance pointing to a specific MleanCoProver.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getScriptLocation() Get the mleancop.sh path.
java.lang.Boolean	query(ModalBeliefSet beliefbase, FolFormula formula) Queries the given belief base for the given formula.
void	setScriptLocation(java.lang.String location) Set the mleancop.sh path.

Methods inherited from class net.sf.tweety.logics.ml.reasoner.AbstractModalReasoner

getDefaultReasoner, setDefaultReasoner

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

scriptLocation

private java.lang.String scriptLocation

String representation of the mleancop.sh path. This shell script specifies the prolog system, prover location and modal logic (D, T, S4 or S5) and domain (constant, cumulative or varying) that will be used.
NOTE: Make sure to set the PROVER_PATH variable in the mleancop.sh script to the location of the mleancop files (= the prolog files).

bash

private Shell bash

Shell to run MleanCoP.

Constructor Detail

MleanCoPReasoner

public MleanCoPReasoner(java.lang.String location,
                        Shell bash)

Constructs a new instance pointing to a specific MleanCoProver.

Parameters:

location - mleancop.sh path on the hard drive

bash - shell to run commands

MleanCoPReasoner

public MleanCoPReasoner(java.lang.String location)

Constructs a new instance pointing to a specific MleanCoProver.

Parameters:

location - mleancop.sh path on the hard drive

Method Detail

getScriptLocation

public java.lang.String getScriptLocation()

Get the mleancop.sh path.

Returns:

location of MleanCOP shell script

setScriptLocation

public void setScriptLocation(java.lang.String location)

Set the mleancop.sh path.

Parameters:

location - of MleanCOP shell script

query

public java.lang.Boolean query(ModalBeliefSet beliefbase,
                               FolFormula formula)

Description copied from interface: Reasoner

Queries the given belief base for the given formula.

Specified by:

query in interface QualitativeReasoner<ModalBeliefSet,FolFormula>

Specified by:

query in interface Reasoner<java.lang.Boolean,ModalBeliefSet,FolFormula>

Specified by:

query in class AbstractModalReasoner

Parameters:

beliefbase - a belief base

formula - a formula

Returns:

the answer to the query