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Sigma KEE - RightAngle
RightAngle(right angle)
right_angle

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


(documentation RightAngle EnglishLanguage "Any TwoDimensionalAngle that has the angularMeasure of 90 AngularDegrees.") Mid-level-ontology.kif 4856-4857
(externalImage RightAngle "http://upload.wikimedia.org/wikipedia/commons/ 6/ 6c/ Right_angle.svg") pictureList.kif 1958-1958
(instance RightAngle PositionalAttribute) Cars.kif 2249-2249 Right angle is an instance of positional attribute
(subclass RightAngle TwoDimensionalAngle) Mid-level-ontology.kif 4855-4855 Right angle is a subclass of two dimensional angle

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


(partition TwoDimensionalAngle RightAngle ObliqueAngle AcuteAngle) Mid-level-ontology.kif 4866-4866 Two dimensional angle is exhaustively partitioned into right angle, oblique angle, and acute angle
(termFormat ChineseLanguage RightAngle "直角") domainEnglishFormat.kif 50012-50012
(termFormat ChineseTraditionalLanguage RightAngle "直角") domainEnglishFormat.kif 50011-50011
(termFormat EnglishLanguage RightAngle "right angle") domainEnglishFormat.kif 50010-50010

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


(=>
    (instance ?A RightAngle)
    (angularMeasure ?A 90.0))
Mid-level-ontology.kif 4859-4861

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


(=>
    (instance ?D Differential)
    (exists (?G1 ?G2)
        (and
            (instance ?G1 Gear)
            (instance ?G2 Gear)
            (part ?G1 ?D)
            (part ?G2 ?D)
            (orientation ?G1 ?G2 RightAngle))))
Cars.kif 2257-2265
(=>
    (instance ?RECTANGLE Rectangle)
    (exists (?ANGLE)
        (and
            (angleOfFigure ?ANGLE ?RECTANGLE)
            (instance ?ANGLE RightAngle))))
Mid-level-ontology.kif 4927-4932
(=>
    (instance ?T RightTriangle)
    (exists (?A)
        (and
            (instance ?A RightAngle)
            (angleOfFigure ?A ?T))))
Mid-level-ontology.kif 4906-4911
(=>
    (instance ?WEAVE Weaving)
    (hasPurpose ?WEAVE
        (exists (?SUB ?WARP ?WEFT ?OBJ)
            (and
                (instance ?SUB Substance)
                (attribute ?SUB Pliable)
                (patient ?WEAVE ?SUB)
                (part ?WARP ?SUB)
                (part ?WEFT ?SUB)
                (not
                    (equal ?WARP ?WEFT))
                (orientation ?WARP ?WEFT RightAngle)
                (result ?WEAVE ?OBJ)
                (instance ?OBJ Artifact)))))
Mid-level-ontology.kif 4626-4640


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