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KB Term:  Term intersection
English Word: 

  Necessity

 Sigma KEE - Necessity
Necessity(必要性)

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 17588-17589
(instance Necessity AlethicAttribute) Merge.kif 17587-17587 必要性 是 真势属性 的 instance

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 17591-17593 公式 的声明 has 必要性 的语气 若且唯若 那个 公式 的声明 doesn't have 可能性 的语气
(=>
    (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 17595-17597

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


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