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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E21">Th31</font></span>: <a NAME="T31"><span class="comment"><font color="firebrick">:: GR_CY_3:31</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">x</font>, <font color="Olive" title="b2">y</font>, <font color="Olive" title="b3">n</font> being   <a href="int_1.html#NM1" title="INT_1:NM.1">Integer</a>  st <font color="Olive" title="b1">x</font>,<font color="Olive" title="b3">n</font> <a href="int_2.html#R1" title="INT_2:pred.1">are_coprime</a>  &amp; <font color="Olive" title="b1">x</font>,<font color="Olive" title="b2">y</font> <a href="int_1.html#R2" title="INT_1:pred.2">are_congruent_mod</a> <font color="Olive" title="b3">n</font> holds <br/><font color="Olive" title="b2">y</font>,<font color="Olive" title="b3">n</font> <a href="int_2.html#R1" title="INT_2:pred.1">are_coprime</a> </div></div>
