/span></big><span
 style="font-family: arial;">closed-theory</span>(<span
 style="font-style: italic; font-weight: bold;">L</span>) &#8594; <span
 style="font-family: arial;">closed-theory</span>(<span
 style="font-style: italic; font-weight: bold;">L</span>)<br>
      <span style="font-family: arial;">truth-lattice</span>(<span
 style="font-style: italic; font-weight: bold;">L</span>)<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;"><span style="font-family: arial;">maximal-theory<