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<div><span class="kw">theorem </span><a NAME="T68"><span class="comment"><font color="firebrick">:: QUATERNI:68</font></span><br/></a><div class="add"><span class="p1"><a href="quaterni.html#K27" title="QUATERNI:func.27">|.</a><span class="default"><a href="quaterni.html#K17" title="QUATERNI:func.17">1q</a></span><a href="quaterni.html#K27" title="QUATERNI:func.27">.|</a></span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 1</div></div>
