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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E34">Th39</font></span>: <a NAME="T39"><span class="comment"><font color="firebrick">:: QUATERN2:39</font></span><br/></a><div class="add"> <a href="struct_0.html#K4" title="STRUCT_0:func.4">0.</a> <a href="quatern2.html#K15" title="QUATERN2:func.15">R_Quaternion</a> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="quatern2.html#K1" title="QUATERN2:func.1">0q</a>  <span class="kw">by</span> <span class="lab"><a class="ref" href="quatern2.html#D10" target="_self" onmouseover="rs('quatern2/D10')" onmouseout="rh()">Def10</a></span>;<br/></div></div>
