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okamžik (TimePoint)

An extensionless point on the universal timeline. The TimePoints at which Processes occur can be known with various degrees of precision and approximation, but conceptually TimePoints are point-like and not interval-like. That is, it doesn't make sense to talk about what happens during a TimePoint, or how long the TimePoint lasts.

Ontologie

SUMO / BASE-ONTOLOGY

Nadtřída(y)

[tree]
entita
is subclass of
  abstraktum  
is subclass of
  veličina  
is subclass of
  fyzikální veličina  
is subclass of
  konstantní veličina  
is subclass of
  časová míra  
is subclass of
  časová pozice  
is subclass of
  okamžik  

Instance(s)

positive infinity  negative infinity 

Související termín(y)

časový interval 

Constrains relations

begin fn  end fn  time interval fn  where fn  before  before or equal  temporally between  temporally between or equal 

Related WordNet synsets

point, point in time
a very short period of time; "at that point I had to leave"
point is kind of (all)...   point is kind of...   kinds of point...   kinds of point (all)...  
See more related synsets on a separate page.

Axiomy (10)

časová pozice je exhaustively partitioned into časový interval,okamžik.
(partition TimePosition TimeInterval TimePoint)

Jestliže point je instancí třídy okamžik a point se nerovná positive infinity, potom point happens before positive infinity.
(=>
      (and
            (instance ?POINT TimePoint)
            (not
                  (equal ?POINT PositiveInfinity)))
      (before ?POINT PositiveInfinity))

Jestliže point je instancí třídy okamžik a point se nerovná positive infinity, potom existuje otherpoint tak, že otherpoint je between point and positive infinity.
(=>
      (and
            (instance ?POINT TimePoint)
            (not
                  (equal ?POINT PositiveInfinity)))
      (exists
            (?OTHERPOINT)
            (temporallyBetween ?POINT ?OTHERPOINT PositiveInfinity)))

Jestliže point je instancí třídy okamžik a point se nerovná negative infinity, potom negative infinity happens before point.
(=>
      (and
            (instance ?POINT TimePoint)
            (not
                  (equal ?POINT NegativeInfinity)))
      (before NegativeInfinity ?POINT))

Jestliže point je instancí třídy okamžik a point se nerovná negative infinity, potom existuje otherpoint tak, že otherpoint je between negative infinity and point.
(=>
      (and
            (instance ?POINT TimePoint)
            (not
                  (equal ?POINT NegativeInfinity)))
      (exists
            (?OTHERPOINT)
            (temporallyBetween NegativeInfinity ?OTHERPOINT ?POINT)))

Jestliže point je instancí třídy okamžik, potom existuje časový interval interval tak, že point je a part of interval.
(=>
      (instance ?POINT TimePoint)
      (exists
            (?INTERVAL)
            (and
                  (instance ?INTERVAL TimeInterval)
                  (temporalPart ?POINT ?INTERVAL))))

Jestliže interval je instancí třídy časový interval, potom existuje okamžik point tak, že point je a part of interval.
(=>
      (instance ?INTERVAL TimeInterval)
      (exists
            (?POINT)
            (and
                  (instance ?POINT TimePoint)
                  (temporalPart ?POINT ?INTERVAL))))

(=>
      (instance ?OBJ Object)
      (exists
            (?TIME1 ?TIME2)
            (and
                  (instance ?TIME1 TimePoint)
                  (instance ?TIME2 TimePoint)
                  (before ?TIME1 ?TIME2)
                  (forall
                        (?TIME)
                        (=>
                              (and
                                    (beforeOrEqual ?TIME1 ?TIME)
                                    (beforeOrEqual ?TIME ?TIME2))
                              (time ?OBJ ?TIME))))))

phys exists during time a time je instancí třídy okamžik tehdy a jen tehdy pokud time je between or at "the beginning of doba existence phys" and "the end of doba existence phys".
(<=>
      (and
            (time ?PHYS ?TIME)
            (instance ?TIME TimePoint))
      (temporallyBetweenOrEqual
            (BeginFn
                  (WhenFn ?PHYS))
            ?TIME
            (EndFn
                  (WhenFn ?PHYS))))

(=>
      (equal
            (TemporalCompositionFn ?INTERVAL ?INTERVAL-TYPE)
            ?CLASS)
      (forall
            (?TIME)
            (=>
                  (and
                        (instance ?TIME TimePoint)
                        (temporalPart ?TIME ?INTERVAL))
                  (exists
                        (?INSTANCE)
                        (and
                              (instance ?INSTANCE ?CLASS)
                              (temporalPart ?TIME ?INSTANCE))))))