/span>), |=<sub
 style="font-style: italic; font-weight: bold;">L</sub>)<br>
      </td>
      <td style="vertical-align: top;">truth classification over <span
 style="font-style: italic; font-weight: bold;">L</span></td>
    </tr>
  </tbody>
</table>
<br>
<h3><a name="The_Truth_Concept_Lattice"></a>The Truth Concept Lattice</h3>
<p>The notion of a <span style="font-style: italic;">concept lattice</span>
is the central data structure in
FCA. It is a complete lattice, where each lattice element resolves as
b