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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E13">Th32</font></span>: <a NAME="T32"><span class="comment"><font color="firebrick">:: TOPREALA:32</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">a</font>, <font color="Olive" title="b2">b</font>, <font color="Olive" title="b3">r</font>, <font color="Olive" title="b4">s</font> being   <a href="xreal_0.html#NM1" title="XREAL_0:NM.1">Real</a>  st <font color="Olive" title="b1">a</font> <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a> <font color="Olive" title="b2">b</font> &amp; <font color="Olive" title="b3">r</font> <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a> <font color="Olive" title="b4">s</font> holds <br/> not  <a href="topreala.html#K1" title="TOPREALA:func.1">Trectangle</a> (<font color="Olive" title="b1">a</font>,<font color="Olive" title="b2">b</font>,<font color="Olive" title="b3">r</font>,<font color="Olive" title="b4">s</font>) is  <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a> </div></div>
