difference method
Returns a new set with the elements of this set that are not in other.
Implementation
TreapSetOfDouble difference(TreapSetOfDouble other) =>
TreapSetOfDouble._(base.difference(other.base));
Returns a new set with the elements of this set that are not in other.
TreapSetOfDouble difference(TreapSetOfDouble other) =>
TreapSetOfDouble._(base.difference(other.base));