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<div>:: <span class="kw">deftheorem </span>   defines <a href="group_24.html#K6" title="GROUP_24:func.6">Dihedral_group</a> <a onclick="hs(this)" href="javascript:()">GROUP_24:def 8 : <br/></a><span> 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> holds   <a href="group_24.html#K6" title="GROUP_24:func.6">Dihedral_group</a> <font color="Olive" title="b1">n</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="group_24.html#K1" title="GROUP_24:func.1">semidirect_product</a> (<span class="p1">(<span class="default"><a href="gr_cy_1.html#K4" title="GR_CY_1:func.4">INT.Group</a> <font color="Olive" title="b1">n</font></span>)</span>,<span class="p1">(<span class="default"><a href="gr_cy_1.html#K4" title="GR_CY_1:func.4">INT.Group</a> 2</span>)</span>,<span class="p1">(<span class="default"><a href="group_24.html#K5" title="GROUP_24:func.5">inversions</a> <span class="p2">(<span class="default"><a href="gr_cy_1.html#K4" title="GR_CY_1:func.4">INT.Group</a> <font color="Olive" title="b1">n</font></span>)</span></span>)</span>);<br/></span></div>
