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Formal Language:
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| Concrete(concrete) | concrete |
| appearance as argument number 1 |
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| (subclass Concrete Mixture) | Economy.kif 6312-6312 | Concrete is a subclass of mixture |
| (documentation Concrete EnglishLanguage "Concrete is a class of CompoundSubstances used as building materials. Concrete is made up of Mineral pieces (sand or gravel) and a Cement material used to bind them together.") | Economy.kif 6316-6318 | Concrete is a subclass of mixture |
| (subclass Concrete Artifact) | Society.kif 566-566 | Concrete is a subclass of artifact |
| (externalImage Concrete "http://upload.wikimedia.org/wikipedia/commons/2/ 25/ Concrete_aggregate_grinding.JPG") | pictureList.kif 946-946 | Concrete is a subclass of artifact |
| appearance as argument number 2 |
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| antecedent |
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| (=> (instance ?CONCRETE Concrete) (exists (?PART) (and (instance ?PART Mineral) (component ?PART ?CONCRETE)))) |
Economy.kif 6320-6325 | If X is an instance of concrete, then there exists Y such that Y is an instance of mineral and Y is a component of X |
| (=> (instance ?CONCRETE Concrete) (exists (?PART) (and (instance ?PART Cement) (component ?PART ?CONCRETE)))) |
Economy.kif 6327-6332 | If X is an instance of concrete, then there exists Y such that Y is an instance of cement and Y is a component of X |
| (=> (and (instance ?RUNWAY Runway) (surface ?SURFACE ?RUNWAY) (instance ?SURFACE Concrete)) (instance ?RUNWAY PavedRunway)) |
Transportation.kif 1419-1424 | If X is an instance of runway, Y is a surface of X, and Y is an instance of concrete, then X is an instance of paved runway |
| consequent |
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| (=> (and (instance ?RUNWAY PavedRunway) (surface ?SURFACE ?RUNWAY)) (or (instance ?SURFACE Asphalt) (instance ?SURFACE Concrete))) |
Transportation.kif 1404-1410 | If X is an instance of paved runway and Y is a surface of X, then Y is an instance of asphalt or Y is an instance of concrete |