A Lobounded_real_interval is a Real_interval that has a lower bound.
EXPRESS specification:
*) ENTITY Lobounded_real_interval SUBTYPE OF (Real_interval); lobnd : REAL; loclosure : BOOLEAN; END_ENTITY; (*
Attributes:
lobnd: The lower bound for the interval.
loclosure: Closure indicator that is as follows:
- true
- The interval includes reals greater than or equal to lobnd, i.e. the interval is closed below.
- false
- The interval includes reals greater than lobnd, i.e. the interval is open below.