Class DAY-NUMBER


Slots on this class:

Documentation:
DAY-NUMBER denotes a day of a month.
Instance-Of: Class, Integer-range
Range-Of: Time-point.day

Axioms:

(= (I-Upper-Bound Day-Number) 31)

(= (I-Lower-Bound Day-Number) 1)


Other Related Axioms:

(=> (Time-Point.Day $X $Y) (Day-Number $Y))