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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E45">Th44</font></span>: <a NAME="T42"><span class="comment"><font color="firebrick">:: GROUP_1A:42</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">A</font> being   <a href="rlvect_1.html#V2" title="RLVECT_1:attr.2">Abelian</a>  <a href="group_1a.html#NM1" title="GROUP_1A:NM.1">addGroup</a><br/>  for <font color="Olive" title="b2">a</font>, <font color="Olive" title="b3">b</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Olive" title="b1">A</font> holds   <a href="group_1a.html#K2" title="GROUP_1A:func.2">-</a> <span class="p1">(<span class="default"><font color="Olive" title="b2">a</font> <a href="rlvect_1.html#K3" title="RLVECT_1:func.3">+</a> <font color="Olive" title="b3">b</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><a href="group_1a.html#K2" title="GROUP_1A:func.2">-</a> <font color="Olive" title="b2">a</font></span>)</span> <a href="rlvect_1.html#K3" title="RLVECT_1:func.3">+</a> <span class="p1">(<span class="default"><a href="group_1a.html#K2" title="GROUP_1A:func.2">-</a> <font color="Olive" title="b3">b</font></span>)</span> <span class="kw">by</span> <span class="lab"><a class="ref" href="group_1a.html#T16" target="_self" onmouseover="rs('group_1a/T16')" onmouseout="rh()">Th16</a></span>;<br/></div></div>
