Ladder - Sigma Knowledge base Browser

appearance as argument number 1

(documentation Ladder EnglishLanguage "An Artifact which consists of two parallel supports connected by a series of rungs which can be used to ascend or descend.")	Mid-level-ontology.kif 12829-12830
(externalImage Ladder "http://www.adampease.org/Articulate/SUMOpictures/ pictures/ tools/ BW/ ladder.png")	pictureList.kif 547-547
(subclass Ladder Artifact)	Mid-level-ontology.kif 12828-12828

appearance as argument number 2

(termFormat ChineseLanguage Ladder "阶梯")	domainEnglishFormat.kif 33073-33073
(termFormat ChineseTraditionalLanguage Ladder "階梯")	domainEnglishFormat.kif 33072-33072
(termFormat EnglishLanguage Ladder "ladder")	domainEnglishFormat.kif 33071-33071

antecedent

(=>
    (instance ?LADDER Ladder)
    (and
        (capability MotionUpward instrument ?LADDER)
        (capability MotionDownward instrument ?LADDER)))

Mid-level-ontology.kif 12832-12836