Package org.tweetyproject.lp.nlp.syntax

Class NLPProgram

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<E>

java.util.HashSet<T>

org.tweetyproject.commons.util.rules.RuleSet<NLPRule>

org.tweetyproject.lp.nlp.syntax.NLPProgram

All Implemented Interfaces:

Serializable, Cloneable, Iterable<NLPRule>, Collection<NLPRule>, Set<NLPRule>, BeliefBase, LogicProgram<FolFormula,FolFormula,NLPRule>

public class NLPProgram
extends RuleSet<NLPRule>
implements LogicProgram<FolFormula,FolFormula,NLPRule>

A nested logic program

Author:

Tim Janus

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
NLPProgram()

Method Summary

Modifier and Type	Method	Description
void	addFact(FolFormula fact)	Adds the given fact to the program
void	addFacts(FolFormula... facts)	Adds the given facts to the program
NLPProgram	exchange(Term<?> v, Term<?> t)	Substitutes all occurrences of term "v" in this formula by term "t" and at the same time replaces all occurrences of term "t" by term "v" and eventually returns the new formula.
Set<FolFormula>	getFacts()
FolSignature	getMinimalSignature()	Returns the signature of the language of this knowledge base.
NLPProgram	substitute(Map<? extends Term<?>,? extends Term<?>> map)	Substitutes all occurrences of all terms "v" in map.keyset() in this formula by map.get(v) and returns the new formula.
NLPProgram	substitute(Term<?> t, Term<?> v)	Substitutes all occurrences of term "v" in this formula by term "t" and returns the new formula.

Methods inherited from class org.tweetyproject.commons.util.rules.RuleSet

getConclusions, getPremises, getRulesWithConclusion, getSyntacticModule

Methods inherited from class java.util.HashSet

add, clear, clone, contains, isEmpty, iterator, remove, size, spliterator, toArray, toArray

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, retainAll, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface org.tweetyproject.logics.commons.syntax.interfaces.LogicProgram

toString

Methods inherited from interface java.util.Set

addAll, containsAll, equals, hashCode, removeAll, retainAll

Constructor Details

NLPProgram

public NLPProgram()

Method Details

getFacts

public Set<FolFormula> getFacts()

Returns:

A set of facts as FOL formulas

addFact

public void addFact(FolFormula fact)

Description copied from interface: LogicProgram

Adds the given fact to the program

Specified by:

addFact in interface LogicProgram<FolFormula,FolFormula,NLPRule>

Parameters:

fact - a fact

addFacts

public void addFacts(FolFormula... facts)

Description copied from interface: LogicProgram

Adds the given facts to the program

Specified by:

addFacts in interface LogicProgram<FolFormula,FolFormula,NLPRule>

Parameters:

facts - some facts

getMinimalSignature

public FolSignature getMinimalSignature()

Description copied from interface: BeliefBase

Returns the signature of the language of this knowledge base.

Specified by:

getMinimalSignature in interface BeliefBase

Specified by:

getMinimalSignature in interface LogicProgram<FolFormula,FolFormula,NLPRule>

Returns:

the signature of the language of this knowledge base.

substitute

public NLPProgram substitute(Term<?> t,
 Term<?> v)

Description copied from interface: LogicProgram

Substitutes all occurrences of term "v" in this formula by term "t" and returns the new formula.

Specified by:

substitute in interface LogicProgram<FolFormula,FolFormula,NLPRule>

Parameters:

t - the term to be substituted.

v - the term to substitute.

Returns:

a formula where every occurrence of "v" is replaced by "t".

substitute

public NLPProgram substitute(Map<? extends Term<?>,? extends Term<?>> map)
                      throws IllegalArgumentException

Description copied from interface: LogicProgram

Substitutes all occurrences of all terms "v" in map.keyset() in this formula by map.get(v) and returns the new formula.

Specified by:

substitute in interface LogicProgram<FolFormula,FolFormula,NLPRule>

Parameters:

map - a mapping defining which terms to be substituted.

Returns:

a formula where every term in map.keyset() has been replaced by map.get(v).

Throws:

IllegalArgumentException - if any term and its mapping are of different sorts

exchange

public NLPProgram exchange(Term<?> v,
 Term<?> t)
                    throws IllegalArgumentException

Description copied from interface: LogicProgram

Substitutes all occurrences of term "v" in this formula by term "t" and at the same time replaces all occurrences of term "t" by term "v" and eventually returns the new formula.

Specified by:

exchange in interface LogicProgram<FolFormula,FolFormula,NLPRule>

Parameters:

v - a term.

t - a term.

Returns:

a new logical formula with both "v" and "t" exchanged.

Throws:

IllegalArgumentException - if "v" and "t" are of different sorts