WheelChock - Sigma Knowledge base Browser

appearance as argument number 1

(documentation WheelChock EnglishLanguage "A Device that is designed to keep a Vehicle's Wheels, and thus the vehicle itself, from moving.")	Cars.kif 4303-4304
(subclass WheelChock Device)	Cars.kif 4301-4301	Wheel chock is a subclass of device

appearance as argument number 2

(termFormat EnglishLanguage WheelChock "wheel chock")

Cars.kif 4302-4302

antecedent

(=>
    (instance ?WC WheelChock)
    (hasPurpose ?WC
        (exists (?W ?T)
            (and
                (instance ?W Wheel)
                (holdsDuring ?T
                    (and
                        (meetsSpatially ?WC ?W)
                        (not
                            (exists (?R)
                                (and
                                    (instance ?R Rotating)
                                    (patient ?R ?W))))))))))

Cars.kif 4306-4319

If a physical is an instance of wheel chock,
then the physical has the purpose there exist an entity and another entity such that the entity is an instance of wheel and the physical meets the entity and there doesn't exist a third entity such that the third entity is an instance of rotating and the entity is a patient of the third entity holds during the other entity

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