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Entity > Abstract > Quantity > PhysicalQuantity > ConstantQuantity > TimeMeasure > TimePosition > TimePoint
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TimePoint comparison table
Subject documentation have axiom
NegativeInfinityThe TimePoint that is before all other TimePoints
(equal (BeginFn (PastFn ?TIME)) NegativeInfinity)
PositiveInfinityThe TimePoint that is after all other TimePoints
(equal (EndFn (FutureFn ?TIME)) PositiveInfinity)

Next TimePositionTimeInterval    UpTimePosition