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<div><span class="kw">theorem </span><a NAME="T108"><span class="comment"><font color="firebrick">:: GROUP_24:108</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">n</font> being   non  <a href="ordinal1.html#V8" title="ORDINAL1:attr.8">zero</a>  <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a>  st <font color="Olive" title="b1">n</font> <a href="xxreal_0.html#NR4" title="XXREAL_0:NR.4">&gt;</a> 2 holds <br/> not  <a href="group_24.html#K6" title="GROUP_24:func.6">Dihedral_group</a> <font color="Olive" title="b1">n</font> is  <a href="group_1.html#V5" title="GROUP_1:attr.5">commutative</a> </div></div>
