Select language: english | cesky | deutsch | italiano | simplified chinese | traditional chinese | hindi Concept: English word: Home

negative infinity (NegativeInfinity)

The TimePoint that is before all other TimePoints.

Ontology

SUMO / TEMPORAL-CONCEPTS

Class(es)

 time point

negative infinity

Coordinate term(s)

positive infinity

Axioms (3)

If point is an instance of time point and point is not equal to negative infinity, then negative infinity happen?{s} before point.
```(=>
(and
(instance ?POINT TimePoint)
(not
(equal ?POINT NegativeInfinity)))
(before NegativeInfinity ?POINT))```

If point is an instance of time point and point is not equal to negative infinity, then there exists otherpoint so that otherpoint is between negative infinity and point.
```(=>
(and
(instance ?POINT TimePoint)
(not
(equal ?POINT NegativeInfinity)))
(exists
(?OTHERPOINT)
(temporallyBetween NegativeInfinity ?OTHERPOINT ?POINT)))```

If process is an instance of physical, then "before "the time of existence of process"" is equal to "interval between negative infinity and "the beginning of "the time of existence of process""".
```(=>
(instance ?PROCESS Physical)
(equal
(PastFn
(WhenFn ?PROCESS))
(TimeIntervalFn
NegativeInfinity
(BeginFn
(WhenFn ?PROCESS)))))```