RightAngle - Sigma Knowledge base Browser

appearance as argument number 1

(angleOfFigure RightAngle Rectangle)	Mid-level-ontology.kif 5573-5573	Right angle is the angle found in rectangle
(documentation RightAngle EnglishLanguage "Any TwoDimensionalAngle that has the angularMeasure of 90 AngularDegrees.")	Mid-level-ontology.kif 5498-5499	Right angle is the angle found in rectangle
(externalImage RightAngle "http://upload.wikimedia.org/wikipedia/commons/ 6/ 6c/ Right_angle.svg")	pictureList.kif 1957-1957	Right angle is the angle found in rectangle
(instance RightAngle PositionalAttribute)	Cars.kif 2233-2233	Right angle is an instance of positional attribute
(instance RightAngle TwoDimensionalAngle)	Mid-level-ontology.kif 5497-5497	Right angle is an instance of two dimensional angle

appearance as argument number 2

(termFormat ChineseLanguage RightAngle "直角")	domainEnglishFormat.kif 50045-50045
(termFormat ChineseTraditionalLanguage RightAngle "直角")	domainEnglishFormat.kif 50044-50044
(termFormat EnglishLanguage RightAngle "right angle")	domainEnglishFormat.kif 50043-50043

antecedent

(=>
    (and
        (equal ?R RightAngle)
        (angularMeasure ?R
            (MeasureFn ?N AngularDegree)))
    (equal ?N 90.0))

Mid-level-ontology.kif 5501-5506

If a two dimensional angle is equal to right angle and a real number angular degree(s) is an angular measure of the two dimensional angle,
then the real number is equal to 90.0

consequent

(=> (and (instance ?T Polygon) (equal ?T RightTriangle)) (exists (?A) (and (instance ?A TwoDimensionalAngle) (angleOfFigure ?A ?T) (equal ?A RightAngle))))	Mid-level-ontology.kif 5549-5557	If a geometric figure is an instance of polygon and the geometric figure is equal to right triangle, then there exists a two dimensional angle such that the two dimensional angle is an instance of two dimensional angle and the two dimensional angle is the angle found in the geometric figure and the two dimensional angle is equal to right angle
(=> (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 2241-2249	If an object is an instance of differential, then there exist another object and a third object such that the other object is an instance of gear and the third object is an instance of gear and the other object is a part of the object and the third object is a part of the object and the other object is right angle to the third object
(=> (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 5090-5104	If a physical is an instance of weaving, then the physical has the purpose there exist an entity, another entity,, , a third entity and a fourth entity such that the entity is an instance of substance and pliable is an attribute of the entity and the entity is a patient of the physical and the other entity is a part of the entity and the third entity is a part of the entity and the other entity is not equal to the third entity and the other entity is right angle to the third entity and the fourth entity is a result of the physical and the fourth entity is an instance of artifact

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