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<div><span class="kw">theorem </span><a NAME="T1"><span class="comment"><font color="firebrick">:: CATALG_1:1</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">I</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> <br/>  for <font color="Olive" title="b2">A</font> being   <a href="pboole.html#NM1" title="PBOOLE:NM.1">ManySortedSet</a> of <font color="Olive" title="b1">I</font> holds  <span class="p1">(<span class="default"><a href="partfun1.html#K6" title="PARTFUN1:func.6">id</a> <span class="p2">(<span class="default"><a href="card_3.html#K3" title="CARD_3:func.3">Union</a> <font color="Olive" title="b2">A</font></span>)</span></span>)</span> <a href="catalg_1.html#K1" title="CATALG_1:func.1">-MSF</a> (<font color="Olive" title="b1">I</font>,<font color="Olive" title="b2">A</font>) <a href="pboole.html#R6" title="PBOOLE:pred.6">=</a>  <a href="msualg_3.html#K2" title="MSUALG_3:func.2">id</a> <font color="Olive" title="b2">A</font></div></div>
