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   BroadGaugeRailway
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| appearance as argument number 1 |
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| (subclass BroadGaugeRailway Railway) | Transportation.kif 353-353 | Broad gauge railway is a subclass of railway |
| appearance as argument number 2 |
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| antecedent |
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| (<=> (instance ?RR BroadGaugeRailway) (property ?RR BroadGauge)) |
Transportation.kif 411-413 | X is an instance of broad gauge railway if and only if X the attribute broad gauge |
| consequent |
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| (<=> (lengthOfBroadGaugeRailway ?AREA ?LENGTH) (length (KappaFn ?RAILWAYS (and (instance ?RAILWAYS BroadGaugeRailway) (located ?RAILWAYS ?AREA))) ?LENGTH)) |
Transportation.kif 182-189 | X is a length of broad gauge railway of Y if and only if the length of the class described by Z is X |
| (=> (and (lengthOfBroadGaugeRailway ?AREA (MeasureFn ?LENGTH ?UNIT)) (instance ?UNIT UnitOfLength) (greaterThan ?LENGTH 0)) (exists (?RAILWAY) (and (instance ?RAILWAY BroadGaugeRailway) (located ?RAILWAY ?AREA)))) |
Transportation.kif 191-199 | If X Y(s) is a length of broad gauge railway of Z, Y is an instance of unit of length, and X is greater than 0, then there exists W such that W is an instance of broad gauge railway and W is located at Z |
| (<=> (lengthOfUnclassifiedGaugeRailway ?AREA ?LENGTH) (length (KappaFn ?RAILWAYS (and (located ?RAILWAYS ?AREA) (not (instance ?RAILWAYS (UnionFn StandardGaugeRailway (UnionFn BroadGaugeRailway (UnionFn DualGaugeRailway NarrowGaugeRailway))))))) ?LENGTH)) |
Transportation.kif 294-306 | X is a length of unclassified gauge railway of Y if and only if the length of the class described by Z is X |
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