net.sf.tweety.logics.fol.syntax

Class QuantifiedFormula

java.lang.Object

net.sf.tweety.logics.fol.syntax.RelationalFormula

net.sf.tweety.logics.fol.syntax.FolFormula

net.sf.tweety.logics.fol.syntax.QuantifiedFormula

All Implemented Interfaces:

net.sf.tweety.commons.Formula, net.sf.tweety.logics.commons.syntax.interfaces.ClassicalFormula, net.sf.tweety.logics.commons.syntax.interfaces.ComplexLogicalFormula, net.sf.tweety.logics.commons.syntax.interfaces.Conjuctable, net.sf.tweety.logics.commons.syntax.interfaces.Disjunctable, net.sf.tweety.logics.commons.syntax.interfaces.Invertable, net.sf.tweety.logics.commons.syntax.interfaces.LogicStructure, net.sf.tweety.logics.commons.syntax.interfaces.ProbabilityAware, net.sf.tweety.logics.commons.syntax.interfaces.QuantifiedFormula, net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Direct Known Subclasses:

ExistsQuantifiedFormula, ForallQuantifiedFormula

public abstract class QuantifiedFormula
extends FolFormula

The common parent of exists and forall quantified formulas, which contains common functionalities.

Author:

Matthias Thimm

Constructor Summary

Constructors

Constructor and Description
QuantifiedFormula(FolFormula folFormula, net.sf.tweety.logics.commons.syntax.Variable variable) Creates a new quantified folFormula with the given folFormula and variable.
QuantifiedFormula(RelationalFormula folFormula, Set<net.sf.tweety.logics.commons.syntax.Variable> variables) Creates a new quantified folFormula with the given folFormula and variables.

Method Summary

Modifier and Type	Method and Description
boolean	containsQuantifier()
boolean	equals(Object obj)
Set<FOLAtom>	getAtoms()
FolFormula	getFormula() Returns the folFormula this quantified folFormula ranges over
Set<net.sf.tweety.logics.commons.syntax.Functor>	getFunctors()
Set<? extends net.sf.tweety.logics.commons.syntax.Predicate>	getPredicates()
Set<QuantifiedFormula>	getQuantifiedFormulas()
Set<net.sf.tweety.logics.commons.syntax.Variable>	getQuantifierVariables() Returns the variables of this quantified folFormula.
Set<net.sf.tweety.logics.commons.syntax.interfaces.Term<?>>	getTerms()
<C extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> Set<C>	getTerms(Class<C> cls)
Set<net.sf.tweety.logics.commons.syntax.Variable>	getUnboundVariables()
int	hashCode()
boolean	isClosed()
boolean	isClosed(Set<net.sf.tweety.logics.commons.syntax.Variable> boundVariables)
boolean	isDnf() Checks whether this formula is in disjunctive normal form.
boolean	isLiteral()
boolean	isWellBound()
boolean	isWellBound(Set<net.sf.tweety.logics.commons.syntax.Variable> boundVariables)

Methods inherited from class net.sf.tweety.logics.fol.syntax.FolFormula

clone, collapseAssociativeFormulas, combineWithAnd, combineWithOr, complement, getUniformProbability, substitute, toDnf, toNnf

Methods inherited from class net.sf.tweety.logics.fol.syntax.RelationalFormula

allGroundInstances, allSubstitutions, containsTermsOfType, exchange, getPredicateCls, getSatisfactionRatio, getSignature, isGround, isWellFormed, substitute, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

QuantifiedFormula

public QuantifiedFormula(RelationalFormula folFormula,
                         Set<net.sf.tweety.logics.commons.syntax.Variable> variables)

Creates a new quantified folFormula with the given folFormula and variables.

Parameters:

folFormula - the folFormula this quantified folFormula ranges over.

variables - the variables of this quantified folFormula.

QuantifiedFormula

public QuantifiedFormula(FolFormula folFormula,
                         net.sf.tweety.logics.commons.syntax.Variable variable)

Creates a new quantified folFormula with the given folFormula and variable.

Parameters:

folFormula - the folFormula this quantified folFormula ranges over.

variable - the variable of this quantified folFormula.

Method Detail

isClosed

public boolean isClosed()

isClosed

public boolean isClosed(Set<net.sf.tweety.logics.commons.syntax.Variable> boundVariables)

containsQuantifier

public boolean containsQuantifier()

isWellBound

public boolean isWellBound()

isWellBound

public boolean isWellBound(Set<net.sf.tweety.logics.commons.syntax.Variable> boundVariables)

getPredicates

public Set<? extends net.sf.tweety.logics.commons.syntax.Predicate> getPredicates()

getFunctors

public Set<net.sf.tweety.logics.commons.syntax.Functor> getFunctors()

Specified by:

getFunctors in class RelationalFormula

Returns:

all functor that appear in this formula.

getAtoms

public Set<FOLAtom> getAtoms()

Specified by:

getAtoms in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Specified by:

getAtoms in class RelationalFormula

Returns:

all atoms that appear in this formula.

getUnboundVariables

public Set<net.sf.tweety.logics.commons.syntax.Variable> getUnboundVariables()

getFormula

public FolFormula getFormula()

Returns the folFormula this quantified folFormula ranges over

Specified by:

getFormula in interface net.sf.tweety.logics.commons.syntax.interfaces.QuantifiedFormula

Overrides:

getFormula in class RelationalFormula

Returns:

the folFormula this quantified folFormula ranges over

getQuantifierVariables

public Set<net.sf.tweety.logics.commons.syntax.Variable> getQuantifierVariables()

Returns the variables of this quantified folFormula.

Specified by:

getQuantifierVariables in interface net.sf.tweety.logics.commons.syntax.interfaces.QuantifiedFormula

Overrides:

getQuantifierVariables in class FolFormula

Returns:

the variables of this quantified folFormula.

getQuantifiedFormulas

public Set<QuantifiedFormula> getQuantifiedFormulas()

isDnf

public boolean isDnf()

Description copied from class: FolFormula

Checks whether this formula is in disjunctive normal form.

Specified by:

isDnf in class FolFormula

Returns:

"true" iff this formula is in disjunctive normal form.

isLiteral

public boolean isLiteral()

getTerms

public Set<net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> getTerms()

getTerms

public <C extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> Set<C> getTerms(Class<C> cls)

hashCode

public int hashCode()

Specified by:

hashCode in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Specified by:

equals in interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

Overrides:

equals in class Object