@Override
	public boolean equals(Object obj) {
		if (obj == this) {
			return true;
		}
		if (obj instanceof AndFilter<?>) {
			AndFilter<?> them = (AndFilter<?>)obj;
			return (base.equals(them.base) && refiner.equals(them.refiner)) ||
					(refiner.equals(them.base) && base.equals(them.refiner));
		}
		
		return false;
	}