" cellpadding="5" cellspacing="2">
  <tbody>
    <tr>
      <td style="vertical-align: top;"><span
 style="font-family: arial; font-style: italic;">mod</span>(<span
 style="font-style: italic; font-weight: bold;">L</span>)<br>
= <span style="font-family: arial; font-style: italic;">model</span>(<span
 style="font-style: italic; font-weight: bold;">L</span>)<br>
      </td>
      <td style="vertical-align: top;">instances (formal objects):<br>
models whose underlying type language is <span
 style="font-style