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Entity > Abstract > Quantity > PhysicalQuantity > ConstantQuantity > TimeMeasure > TimeDuration > DayDuration

DayDuration
subject			fact

DayDuration	documentation Time unit. 1 day = 24 hours
	has axiom (=> (instance ?DAY Day) (duration ?DAY DayDuration))
	has axiom (equal (MeasureFn ?NUMBER DayDuration) (MeasureFn (MultiplicationFn ?NUMBER 24) HourDuration))
	has axiom (equal (MeasureFn ?NUMBER YearDuration) (MeasureFn (MultiplicationFn ?NUMBER 365) DayDuration))
	is an instance of TimeDuration
	is an instance of UnitOfMeasure
TimeDuration	is second domain of age
	is second domain of duration
	is second domain of frequency
UnitOfMeasure	is second domain of MeasureFn
PhysicalQuantity	is partitioned into ConstantQuantity, FunctionQuantity
ConstantQuantity	is first domain of MagnitudeFn
Quantity	is first domain of AdditionFn
	is first domain of DivisionFn
	is first domain of ExponentiationFn
	is first domain of greaterThan
	is first domain of greaterThanOrEqualTo
	is first domain of lessThan
	is first domain of lessThanOrEqualTo
	is first domain of MaxFn
	is first domain of MinFn
	is first domain of MultiplicationFn
	is first domain of ReciprocalFn
	is first domain of RemainderFn
	is first domain of RoundFn
	is first domain of SubtractionFn
Abstract	is disjoint from Physical

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