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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E9">Th11</font></span>: <a NAME="T12"><span class="comment"><font color="firebrick">:: TOPGRP_1:12</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">G</font> being   <a href="group_1.html#NM1" title="GROUP_1:NM.1">Group</a> holds   <a href="group_1.html#K3" title="GROUP_1:func.3">inverse_op</a> <font color="Olive" title="b1">G</font> is  <a href="funct_1.html#V2" title="FUNCT_1:attr.2">one-to-one</a> </div></div>
