src/main/java/org/organicdesign/fp/collections/PersistentTreeSet.java
@Override public ImSortedSet<E> tailSet(E fromElement) {
        return PersistentTreeSet.ofMap(impl.tailMap(fromElement));
    }
@Override public ImSortedSet<E> tailSet(E fromElement) {
        return PersistentTreeSet.ofMap(impl.tailMap(fromElement));
    }
@ Override public ImSortedSet < E > tailSet ( E fromElement ) { return PersistentTreeSet . ofMap ( impl . tailMap ( fromElement ) ) ; }
{@inheritDoc}
{