public IVPBoolean and(IVPBoolean b2, Context context, DataFactory factory) {
		IVPBoolean result = factory.createIVPBoolean();
		Boolean res = new Boolean(context.getBoolean(getUniqueID()) && context.getBoolean(b2.getUniqueID()));
		context.addBoolean(result.getUniqueID(), res);
		return result;
	}