(=>
(or
(equal ?DIRECTION North)
(equal ?DIRECTION South))
(length
(LatitudeFn ?DIRECTION
(MeasureFn 0.0 AngularDegree)
(MeasureFn 1.0 ArcMinute)
(MeasureFn 0.0 ArcSecond))
(MeasureFn 1.0 NauticalMile))) |
Geography.kif 1911-1918 |
If equal X and north of or equal X and south of, then the length of the region X of 0.0 angular degree(s) is 1.0 nautical mile(s) |
(=>
(equal ?NUM
(MultiplicationFn 1.0 ?NUM))
(equal
(MeasureFn ?NUM NauticalMile)
(MeasureFn
(MultiplicationFn ?NUM 1852.0) Meter))) |
Geography.kif 5420-5427 |
If equal X, 1.0, and X, then equal X nautical mile(s) and X and 1852.0 meter(s) |
(=>
(equal ?NUM
(MultiplicationFn 1.0 ?NUM))
(equal
(MeasureFn ?NUM NauticalMile)
(MeasureFn
(MultiplicationFn ?NUM 1.852)
(KiloFn Meter)))) |
Geography.kif 5429-5436 |
If equal X, 1.0, and X, then equal X nautical mile(s) and X and 1.852 1 thousand meters(s) |
(=>
(equal ?NUM
(MultiplicationFn 1.0 ?NUM))
(equal
(MeasureFn ?NUM NauticalMile)
(MeasureFn
(MultiplicationFn ?NUM 6076.1) FootLength))) |
Geography.kif 5438-5445 |
If equal X, 1.0, and X, then equal X nautical mile(s) and X and 6076.1 foot length(s) |
(=>
(equal ?NUM
(MultiplicationFn 1.0 ?NUM))
(equal
(MeasureFn ?NUM NauticalMile)
(MeasureFn
(MultiplicationFn ?NUM 1.151) Mile))) |
Geography.kif 5447-5454 |
If equal X, 1.0, and X, then equal X nautical mile(s) and X and 1.151 mile(s) |
(=>
(equal ?SPEED
(MeasureFn ?NUM KnotUnitOfSpeed))
(equal ?SPEED
(SpeedFn
(MeasureFn ?NUM NauticalMile)
(MeasureFn 1.0 HourDuration)))) |
Geography.kif 5474-5480 |
If equal X and Y knot unit of speed(s), then equal X and Y nautical mile(s) per 1.0 hour duration(s) |
(<=>
(attribute ?WATER OpenSea)
(exists (?LAND ?DIST)
(and
(instance ?WATER SaltWaterArea)
(not
(instance ?WATER LandlockedWater))
(distance ?LAND ?WATER
(MeasureFn ?DIST NauticalMile))
(greaterThan ?DIST 5.0)))) |
Geography.kif 6253-6262 |
Open sea is an attribute of X if and only if there exist Y and Z such that X is an instance of salt water area and X is not an instance of landlocked water and the distance between Y and X is Z nautical mile(s) and Z is greater than 5.0 |