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<div><span class="kw">theorem </span><a NAME="T12"><span class="comment"><font color="firebrick">:: IDEA_1:12</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">i</font>, <font color="Olive" title="b2">j</font>, <font color="Olive" title="b3">n</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a> holds   <a href="idea_1.html#K4" title="IDEA_1:func.4">ADD_MOD</a> (<font color="Olive" title="b1">i</font>,<font color="Olive" title="b2">j</font>,<font color="Olive" title="b3">n</font>) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="idea_1.html#K4" title="IDEA_1:func.4">ADD_MOD</a> (<font color="Olive" title="b2">j</font>,<font color="Olive" title="b1">i</font>,<font color="Olive" title="b3">n</font>) ;<br/></div></div>
