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Sigma KEE - CharcoalFilter
CharcoalFilter(charcoal filter)

appearance as argument number 1
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(subclass CharcoalFilter Filter) Cars.kif 1570-1570 Charcoal filter is a subclass of filter
(documentation CharcoalFilter EnglishLanguage "A Filter that uses Charcoal to remove impurities from a Gas or Liquid Mixture.") Cars.kif 1572-1573 Charcoal filter is a subclass of filter

appearance as argument number 2
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(termFormat EnglishLanguage CharcoalFilter "charcoal filter") Cars.kif 1571-1571

antecedent
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(=>
    (instance ?CF CharcoalFilter)
    (exists (?C)
        (and
            (subclass ?C Charcoal)
            (material ?C ?CF))))
Cars.kif 1575-1580 If X is an instance of charcoal filter, then there exists Y such that Y is a subclass of charcoal and X is made of Y


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