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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E28">Th15</font></span>: <a NAME="T15"><span class="comment"><font color="firebrick">:: RINGCAT1:15</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">x</font>, <font color="Olive" title="b2">y1</font>, <font color="Olive" title="b3">y2</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a>   st  <a href="ringcat1.html#R2" title="RINGCAT1:pred.2">GO</a> <font color="Olive" title="b1">x</font>,<font color="Olive" title="b2">y1</font> &amp;  <a href="ringcat1.html#R2" title="RINGCAT1:pred.2">GO</a> <font color="Olive" title="b1">x</font>,<font color="Olive" title="b3">y2</font> holds <br/><font color="Olive" title="b2">y1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b3">y2</font></div></div>
