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Sigma KEE - InvoiceNumber
InvoiceNumber

appearance as argument number 1
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(documentation InvoiceNumber EnglishLanguage "A SymbolicString for an Invoice which is unique to Seller.") Mid-level-ontology.kif 28164-28164
(subclass InvoiceNumber SymbolicString) Mid-level-ontology.kif 28165-28165

antecedent
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(=>
    (instance ?AN InvoiceNumber)
    (exists (?INVOICE ?SELLER)
        (and
            (instance ?INVOICE Invoice)
            (instance ?SELLING Selling)
            (agent ?SELLING ?SELLER)
            (uniqueIdWithRespectTo ?INVOICE ?SELLER ?AN))))
Mid-level-ontology.kif 28167-28174


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