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<a NAME="E1:50_1_1"/>
 <a href="gr_cy_1.html#K3">INT.Group</a> , <a href="topalg_1.html#NK4" target="_self">pi_1</a> <font color="Maroon">S</font>,<font color="Maroon">x</font> <a href="group_6.html#R2">are_isomorphic</a> 
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:50_1_1"/>
not  <a href="topalg_1.html#NK4" target="_self">pi_1</a> <font color="Maroon">S</font>,<font color="Maroon">x</font> is <a href="group_1.html#V6">finite</a>
 <b>by </b><i><a class="ref" href="group_6.html#T85">GROUP_6:85</a></i>;<br/>


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