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<div><span class="kw">theorem </span><a NAME="T38"><span class="comment"><font color="firebrick">:: XTUPLE_0:38</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font>, <font color="Olive" title="b2">Y</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds  <span class="p1">(<span class="default"><a href="xtuple_0.html#K12" title="XTUPLE_0:func.12">proj2_3</a> <font color="Olive" title="b1">X</font></span>)</span> <a href="xboole_0.html#K5" title="XBOOLE_0:func.5">\+\</a> <span class="p1">(<span class="default"><a href="xtuple_0.html#K12" title="XTUPLE_0:func.12">proj2_3</a> <font color="Olive" title="b2">Y</font></span>)</span> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="xtuple_0.html#K12" title="XTUPLE_0:func.12">proj2_3</a> <span class="p1">(<span class="default"><font color="Olive" title="b1">X</font> <a href="xboole_0.html#K5" title="XBOOLE_0:func.5">\+\</a> <font color="Olive" title="b2">Y</font></span>)</span></div></div>
