Quadrilateral - Sigma Knowledge base Browser

appearance as argument number 1

(documentation Quadrilateral EnglishLanguage "Any four-sided Polygon.")	Mid-level-ontology.kif 5221-5221
(externalImage Quadrilateral "http://upload.wikimedia.org/wikipedia/commons/ thumb/ d/ d4/ Square_diagonals.svg/ 250px-Square_diagonals.svg.png")	pictureList.kif 1223-1223
(subclass Quadrilateral Polygon)	Mid-level-ontology.kif 5220-5220	Quadrilateral is a subclass of polygon

appearance as argument number 2

(subclass Rectangle Quadrilateral)	Mid-level-ontology.kif 5227-5227	Rectangle is a subclass of quadrilateral
(termFormat ChineseLanguage Quadrilateral "四边形")	domainEnglishFormat.kif 48182-48182
(termFormat ChineseTraditionalLanguage Quadrilateral "四邊形")	domainEnglishFormat.kif 48181-48181
(termFormat EnglishLanguage Quadrilateral "quadrilateral")	domainEnglishFormat.kif 48180-48180

antecedent

(=>
    (instance ?QUAD Quadrilateral)
    (equal
        (CardinalityFn
            (KappaFn ?SIDE
                (sideOfFigure ?SIDE ?QUAD))) 4))

Mid-level-ontology.kif 5223-5225

If an entity is an instance of quadrilateral,
then the number of instances in the class described by a symbolic string is equal to 4

consequent

(=>
    (instance ?X FourPosterBed)
    (exists (?SHAPE)
        (and
            (attribute ?X ?SHAPE)
            (instance ?SHAPE Quadrilateral)
            (forall (?CORNER)
                (=>
                    (and
                        (pointOfIntersection ?SIDE1 ?SIDE2 ?CORNER)
                        (sideOfFigure ?SIDE1 ?SHAPE)
                        (sideOfFigure ?SIDE2 ?SHAPE)
                        (not
                            (equal ?SIDE1 ?SIDE2)))
                    (exists (?POST ?FLOOR)
                        (and
                            (meetsSpatially ?CORNER ?POST)
                            (instance ?POST Artifact)
                            (instance ?FLOOR Floor)
                            (orientation ?X ?FLOOR On)
                            (orientation ?POST ?FLOOR Vertical))))))))

Mid-level-ontology.kif 4551-4570

If an object is an instance of four-poster bed,
then there exists a geometric figure such that the geometric figure is an attribute of the object and the geometric figure is an instance of quadrilateral and for all a geometric point
- if an one dimensional figure is point of intersection another one dimensional figure for the geometric point and the geometric figure の size は the one dimensional figure では %n and the geometric figure の size は the other one dimensional figure では %n and the one dimensional figure is not equal to the other one dimensional figure,
- then there exist another object and a third object such that the geometric point meets the other object and the other object is an instance of artifact and the third object is an instance of floor and the object is on to the third object and the other object is vertical to the third object

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KB Term:			Term intersection

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