Function TIME-RANGE.DURATION


Slots on this function:

Documentation:
(TR-END-DURATION 'tr) denotes a duration of a time range tr.
Instance-Of: Function
Arity: 2
Domain: Time-range
Range: Duration

Other Related Axioms:

(Tp= (Tp+ (Time-Range.Start-Time ?Time-Range)
          (Time-Range.Duration ?Time-Range))
     (Time-Range.End-Time ?Time-Range))

(=> (Time-Range ?Time-Range)
    (Tp= (Tp+ (Time-Range.Start-Time ?Time-Range)
              (Time-Range.Duration ?Time-Range))
         (Time-Range.End-Time ?Time-Range)))

(=> (Time-Range.Duration $X $Y) (Duration $Y))

(=> (Time-Range.Duration $X $Y) (Time-Range $X))