Package org.opennars.language

Class Equivalence

java.lang.Object

org.opennars.language.Term

org.opennars.language.CompoundTerm

org.opennars.language.Statement

org.opennars.language.Equivalence

All Implemented Interfaces:

Serializable, Cloneable, Comparable<AbstractTerm>, Iterable<Term>, AbstractTerm

public class Equivalence
extends Statement

A Statement about an Equivalence relation as defined in the NARS-theory

Author:

Pei Wang, Patrick Hammer

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.opennars.language.CompoundTerm

CompoundTerm.ConvRectangle, CompoundTerm.UnableToCloneException

Nested classes/interfaces inherited from class org.opennars.language.Statement

Statement.EnumStatementSide

Nested classes/interfaces inherited from class org.opennars.language.Term

Term.TermVisitor

Field Summary

Fields

Modifier and Type	Field	Description
private int	temporalOrder

Fields inherited from class org.opennars.language.CompoundTerm

complexity, conceptival, containedTemporalRelations, hash, term

Fields inherited from class org.opennars.language.Term

EmptyTermArray, imagination, index_variable, SELF, SEQ_SPATIAL, SEQ_TEMPORAL, term_indices

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Equivalence(Term[] components, int order)	Constructor with partial values, called by make

Method Summary

Modifier and Type	Method	Description
Equivalence	clone()	Clone an object
Equivalence	clone(Term[] t)	Must be Term return type because the type of Term may change with different arguments
int	getTemporalOrder()
boolean	isCommutative()	Check if the compound is commutative.
static Equivalence	make(Term subject, Term predicate)	Try to make a new compound from two term.
static Equivalence	make(Term subject, Term predicate, int temporalOrder)
static Term	makeTerm(Term subject, Term predicate, int temporalOrder)	alternate version of Inheritance.make that allows equivalent subject and predicate to be reduced to the common term.
Symbols.NativeOperator	operator()	Get the operator of the term.

Methods inherited from class org.opennars.language.CompoundTerm

addComponentsRecursively, addTermsTo, applySubstitute, applySubstituteToCompound, asTermList, cloneDeep, cloneDeepVariables, cloneTerms, cloneTermsAppend, cloneTermsDeep, cloneTermsExcept, cloneTermsListDeep, cloneTermsReplacing, cloneVariableTermsDeep, compareTo, containedTemporalRelations, containsAllTermsOf, containsTerm, containsTermRecursively, countTermRecursively, equals, extractIntervals, getComplexity, getContainedTerms, hashCode, hasInterval, hasVar, hasVarDep, hasVarIndep, hasVarQuery, invalidateName, isNormalized, iterator, makeCompoundName, name, prepareComponentLinks, replaceIntervals, setComponent, setNormalized, shuffle, size, termArray, termList, transformIndependentVariableToDependent, UpdateConvRectangle

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from class org.opennars.language.Statement

getPredicate, getSubject, init, invalid, invalidPair, invalidStatement, invalidStatement, make, make, make, make, makeName, makeStatementName, makeSym, retBySide, retOppositeSide

Methods inherited from class org.opennars.language.Term

get, get, getIsSpatial, hasVar, isConstant, isExecutable, isHigherOrderStatement, isSelf, nameInternal, recurseSubtermsContainingVariables, recurseSubtermsContainingVariables, recurseTerms, setName, subjectOrPredicateIsIndependentVar, text, toSortedSet, toSortedSetArray, toString, valid

Field Detail

temporalOrder

private int temporalOrder

Constructor Detail

Equivalence

private Equivalence(Term[] components,
                    int order)

Constructor with partial values, called by make

Parameters:

components - The component list of the term

Method Detail

clone

public Equivalence clone()

Clone an object

Specified by:

clone in class Statement

Returns:

A new object

clone

public Equivalence clone(Term[] t)

Description copied from class: CompoundTerm

Must be Term return type because the type of Term may change with different arguments

Specified by:

clone in class CompoundTerm

makeTerm

public static Term makeTerm(Term subject,
                            Term predicate,
                            int temporalOrder)

alternate version of Inheritance.make that allows equivalent subject and predicate to be reduced to the common term.

make

public static Equivalence make(Term subject,
                               Term predicate)

Try to make a new compound from two term. Called by the inference rules.

Parameters:

subject - The first component

predicate - The second component

Returns:

A compound generated or null

make

public static Equivalence make(Term subject,
                               Term predicate,
                               int temporalOrder)

operator

public Symbols.NativeOperator operator()

Get the operator of the term.

Specified by:

operator in class CompoundTerm

Returns:

the operator of the term

isCommutative

public boolean isCommutative()

Check if the compound is commutative.

Overrides:

isCommutative in class CompoundTerm

Returns:

true for commutative

getTemporalOrder

public int getTemporalOrder()

Overrides:

getTemporalOrder in class Term