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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E34">Th59</font></span>: <a NAME="T57"><span class="comment"><font color="firebrick">:: CLASSES5:57</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">o</font>, <font color="Olive" title="b2">m</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a> <br/>  for <font color="Olive" title="b3">c</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="cat_1.html#K3" title="CAT_1:func.3">1Cat</a> (<font color="Olive" title="b1">o</font>,<font color="Olive" title="b2">m</font>)</span>)</span> holds <br/> ( <font color="Olive" title="b3">c</font> is   <a href="cat_1.html#NM1" title="CAT_1:NM.1">Object</a> of <span class="p1">(<span class="default"><a href="cat_1.html#K3" title="CAT_1:func.3">1Cat</a> (<font color="Olive" title="b1">o</font>,<font color="Olive" title="b2">m</font>)</span>)</span> &amp; <font color="Olive" title="b3">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">o</font> &amp;  <a href="cat_1.html#K4" title="CAT_1:func.4">id</a> <font color="Olive" title="b3">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">m</font> )</div></div>
