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| ElevationLowPointFn |
| appearance as argument number 1 |
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| (instance ElevationLowPointFn UnaryFunction) | Geography.kif 3383-3383 | Elevation low point is an instance of unary function |
| (domain ElevationLowPointFn 1 GeographicArea) | Geography.kif 3384-3384 | The number 1 argument of elevation low point is an instance of geographic area |
| (range ElevationLowPointFn GeographicArea) | Geography.kif 3385-3385 | The range of elevation low point is an instance of geographic area |
| (documentation ElevationLowPointFn EnglishLanguage "(ElevationLowPointFn ?AREA) denotes the area within the GeographicArea ?AREA that has the lowest elevation.") | Geography.kif 3387-3389 | The range of elevation low point is an instance of geographic area |
| appearance as argument number 2 |
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| antecedent |
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| (=> (and (instance ?AREA GeographicArea) (geographicSubregion (ElevationLowPointFn ?AREA) ?AREA) (instance ?U UnitOfLength) (elevation (ElevationLowPointFn ?AREA) (MeasureFn ?ELEV1 ?U))) (not (exists (?OTHER ?ELEV2) (and (geographicSubregion ?OTHER ?AREA) (not (equal ?OTHER (ElevationLowPointFn ?AREA))) (elevation ?OTHER (MeasureFn ?ELEV2 ?U)) (lessThan ?ELEV2 ?ELEV1))))) |
Geography.kif 3391-3405 | If X is an instance of geographic area, the elevation low point of X is a geographic subregion of X, Y is an instance of unit of length, and Z Y(s) is an elevation of the elevation low point of X, then there don't exist W and V such that W is a geographic subregion of X and equal W and the elevation low point of X and V Y(s) is an elevation of W and V is less than Z |
| consequent |
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| (=> (and (instance ?AREA GeographicArea) (geographicSubregion (ElevationLowPointFn ?AREA) ?AREA) (instance ?U UnitOfLength) (elevation (ElevationLowPointFn ?AREA) (MeasureFn ?ELEV1 ?U))) (not (exists (?OTHER ?ELEV2) (and (geographicSubregion ?OTHER ?AREA) (not (equal ?OTHER (ElevationLowPointFn ?AREA))) (elevation ?OTHER (MeasureFn ?ELEV2 ?U)) (lessThan ?ELEV2 ?ELEV1))))) |
Geography.kif 3391-3405 | If X is an instance of geographic area, the elevation low point of X is a geographic subregion of X, Y is an instance of unit of length, and Z Y(s) is an elevation of the elevation low point of X, then there don't exist W and V such that W is a geographic subregion of X and equal W and the elevation low point of X and V Y(s) is an elevation of W and V is less than Z |
| statement |
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| (elevation (ElevationLowPointFn SouthernOcean) (MeasureFn -7235.0 Meter)) |
Geography.kif 6229-6231 | -7235.0 Meter(s) is an elevation of the elevation low point of southern ocean |