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<div><span class="kw">theorem </span><a NAME="T1"><span class="comment"><font color="firebrick">:: RVSUM_1:1</font></span><br/></a><div class="add"> <a href="numbers.html#K5" title="NUMBERS:func.5">0</a>  <a href="binop_1.html#R3" title="BINOP_1:pred.3">is_a_unity_wrt</a>  <a href="binop_2.html#K9" title="BINOP_2:func.9">addreal</a>  <span class="kw">by</span> <span class="lab"><a class="ref" href="binop_2.html#T2" onmouseover="rs('binop_2/T2')" onmouseout="rh()">BINOP_2:2</a>, <a class="ref" href="setwiseo.html#T14" onmouseover="rs('setwiseo/T14')" onmouseout="rh()">SETWISEO:14</a></span>;<br/></div></div>
