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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E16">Th15</font></span>: <a NAME="T15"><span class="comment"><font color="firebrick">:: ROUGHS_1:15</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">A</font> being   <a href="roughs_1.html#NM2" title="ROUGHS_1:NM.2">Tolerance_Space</a><br/>  for <font color="Olive" title="b2">X</font> being   <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Olive" title="b1">A</font> holds <br/> ( <font color="Olive" title="b2">X</font> is  <a href="roughs_1.html#NV5" title="ROUGHS_1:NV.5">exact</a>  iff  <a href="roughs_1.html#K3" title="ROUGHS_1:func.3">LAp</a> <font color="Olive" title="b2">X</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">X</font> )</div></div>
