Algosim documentation: universe

universe (variable)

The set containing all entities under consideration.

Description

If the programmer assigns a set to the universe variable, which may not exist prior to that assignment, then this set will be used as the universe by the operator (and the complement) function.

Examples

universe ≔ ToSet(SequenceList(0, 10))
{8, 6, 10, 2, 9, 3, 4, 5, 1, 7, 0}
A ≔ { 1, 2, 3, 4, 5 }
{4, 5, 1, 2, 3}
∁A
{7, 6, 10, 9, 8, 0}

See also