   interval map
                </p>
              </td>
</tr>
</tbody>
</table></div>
</div>
<br class="table-break"><p>
        <a class="link" href="subtraction.html" title="Subtraction"><span class="emphasis"><em><span class="bold"><strong>Subtraction</strong></span></em></span></a>, <a class="link" href="erasure.html" title="Erasure"><span class="emphasis"><em><span class="bold"><strong>erasure</strong></span></em></span></a>, <a class="link" href="intersection.html" title="Intersection"><span class="e