Class DAY-NUMBER


Slots on this class:

Documentation:
integer representing day of month.
Instance-Of: Class
Subclass-Of: Integer
Range-Of: Ref.day, Timepoint.day

Equivalence Axioms:

(<=> (Day-Number ?Day-Of-Month)
     (And (Integer ?Day-Of-Month)
          (=< 0 ?Day-Of-Month)
          (=< ?Day-Of-Month 31)))


Axioms:

(=< ?Day-Of-Month 31)

(=< 0 ?Day-Of-Month)

(Integer ?Day-Of-Month)


Other Related Axioms:

(<=> (Day-Number ?Day-Of-Month)
     (And (Integer ?Day-Of-Month)
          (=< 0 ?Day-Of-Month)
          (=< ?Day-Of-Month 31)))

(=> (Timepoint.Day $X $Y) (Day-Number $Y))

(=> (Ref.Day $X $Y) (Day-Number $Y))