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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E4">Th6</font></span>: <a NAME="T6"><span class="comment"><font color="firebrick">:: MSUALG_8:6</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">Y</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> <br/>  for <font color="Olive" title="b2">X</font> being   <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <span class="p1">(<span class="default"><a href="msualg_5.html#K2" title="MSUALG_5:func.2">EqRelLatt</a> <font color="Olive" title="b1">Y</font></span>)</span> holds   <a href="tarski.html#K3" title="TARSKI:func.3">union</a> <font color="Olive" title="b2">X</font> is   <a href="relset_1.html#NM2" title="RELSET_1:NM.2">Relation</a> of <font color="Olive" title="b1">Y</font></div></div>
