isFinite<T> static method
Checks if a set is finite (has a finite cardinality).
In this implementation, all sets are finite by design. This method is provided for conceptual completeness.
Example:
final a = CustomSet<int>([1, 2, 3, 4, 5]);
print(CardinalityUtils.isFinite(a)); // Output: true
Implementation
static bool isFinite<T>(CustomSet<T> set) => true;