Browsing Interface : Welcome guest : log in
Home |  Graph |  ]  KB:  Language:   

Formal Language: 


KB Term:  Term intersection
English Word: 

Sigma KEE - Necessity
Necessity(necessity)essential, fatal, fateful, ineluctable, inescapable, inevitable, inevitably, must, necessarily, necessary, necessity, needfully, needs, of_necessity, prerequisite, requirement, requisite, unavoidable, unnecessary, unneeded

appearance as argument number 1
-------------------------


(documentation Necessity ChineseLanguage "这是指应用于必须出现 Proposition 的属性,即是 它在所有的世界上都会实现。") chinese_format.kif 3891-3892
(documentation Necessity EnglishLanguage "Attribute that applies to Propositions that are necessary, i.e. true in every possible world.") Merge.kif 17573-17574
(instance Necessity AlethicAttribute) Merge.kif 17572-17572 Necessity is an instance of alethic attribute

appearance as argument number 2
-------------------------


(termFormat ChineseLanguage Necessity "必要性") domainEnglishFormat.kif 40072-40072
(termFormat ChineseTraditionalLanguage Necessity "必要性") domainEnglishFormat.kif 40071-40071
(termFormat EnglishLanguage Necessity "necessity") domainEnglishFormat.kif 40070-40070

antecedent
-------------------------


(<=>
    (modalAttribute ?FORMULA Necessity)
    (not
        (modalAttribute
            (not ?FORMULA) Possibility)))
Merge.kif 17576-17578 The statement a formula has the modal force of necessity if and only if the statement the formula doesn't have the modal force of possibility
(=>
    (and
        (instance ?AGENT AutonomousAgent)
        (potentialCustomer ?CUST ?AGENT)
        (modalAttribute
            (and
                (instance ?R Reserving)
                (destination ?R ?AGENT)) Necessity)
        (conditionalProbability
            (exists (?RES1)
                (and
                    (instance ?RES1 Reservation)
                    (reservingEntity ?CUST ?RES1)
                    (fulfillingEntity ?AGENT ?RES1)))
            (customer ?CUST ?AGENT) ?NUM1)
        (conditionalProbability
            (not
                (exists (?RES2)
                    (and
                        (instance ?RES2 Reservation)
                        (reservingEntity ?CUST ?RES2)
                        (fulfillingEntity ?AGENT ?RES2))))
            (customer ?CUST ?AGENT) ?NUM2))
    (lessThan ?NUM2 ?NUM1))
Dining.kif 772-795
(=>
    (modalAttribute ?FORMULA Necessity)
    (modalAttribute ?FORMULA Possibility))
Merge.kif 17580-17582

consequent
-------------------------


(=>
    (attribute ?ORG Greedy)
    (exists (?OBJ)
        (and
            (instance ?ORG Organism)
            (instance ?OBJ Physical)
            (desires ?ORG
                (possesses ?ORG ?OBJ))
            (not
                (modalAttribute
                    (possesses ?ORG ?OBJ) Necessity)))))
Mid-level-ontology.kif 21401-21409
(=>
    (instance ?GUN Handgun)
    (hasPurpose ?GUN
        (exists (?MAN ?S ?H ?G ?S)
            (and
                (instance ?MAN Human)
                (instance ?S Shooting)
                (instrument ?S ?GUN)
                (agent ?S ?MAN)
                (instance ?G Grabbing)
                (subProcess ?G ?S)
                (patient ?G ?GUN)
                (agent ?G ?MAN)
                (instrument ?G ?H)
                (instance ?H Hand)
                (part ?H ?MAN)
                (not
                    (modalAttribute
                        (exists (?H2)
                            (and
                                (instance ?H2 Hand)
                                (not
                                    (equal ?H ?H2))
                                (part ?H2 ?MAN)
                                (instrument ?G ?H2))) Necessity))))))
Mid-level-ontology.kif 1976-2000
(=>
    (instance ?L Longgun)
    (hasPurpose ?L
        (exists (?S ?A)
            (and
                (instance ?S Shooting)
                (instrument ?S ?L)
                (agent ?S ?A)
                (instance ?A Human)
                (holdsDuring
                    (WhenFn ?S)
                    (exists (?G)
                        (and
                            (instance ?G Grabbing)
                            (agent ?G ?A)
                            (patient ?G ?L)
                            (modalAttribute
                                (exists (?H1 ?H2)
                                    (and
                                        (instance ?H1 Hand)
                                        (part ?H1 ?A)
                                        (instance ?H2 Hand)
                                        (part ?H2 ?A)
                                        (not
                                            (equal ?H1 ?H2))
                                        (instrument ?G ?H1)
                                        (instrument ?G ?H2))) Necessity))))))))
Mid-level-ontology.kif 1897-1923
(=>
    (instance ?X PartInspection)
    (hasPurpose ?X
        (exists (?O ?P)
            (and
                (instance ?O SelfConnectedObject)
                (patient ?X ?O)
                (instance ?P Proposition)
                (refers ?P ?O)
                (modalAttribute
                    (conforms ?O ?P) Necessity)))))
Economy.kif 2072-2082


Show full definition with tree view
Show simplified definition (without tree view)
Show simplified definition (with tree view)



Sigma web home      Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is open source software produced by Articulate Software and its partners