Singleton</a></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="Size.html" title="class in hydra.lib.sets">Size</a></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="ToList.html" title="class in hydra.lib.sets">ToList</a></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="Union.html" title="class in hydra.lib.sets">Union</a></th>
<td class=