public Hack(Atom<T> a) { this.a = a; }
public Topology<T> top() { return ((Topology<T>)a.top()).minus(leftright); }
public String toString() { return "~"+a; }
public Hack(Atom<T> a) { this.a = a; }
public Topology<T> top() { return ((Topology<T>)a.top()).minus(leftright); }
public String toString() { return "~"+a; }