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<div><span class="kw">theorem </span><a NAME="T66"><span class="comment"><font color="firebrick">:: TOPGEN_4:66</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">T</font> being   non  <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>  <a href="pre_topc.html#NM1" title="PRE_TOPC:NM.1">TopSpace</a> holds   <a href="topgen_4.html#K5" title="TOPGEN_4:func.5">BorelSets</a> <font color="Olive" title="b1">T</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="prob_1.html#K9" title="PROB_1:func.9">sigma</a> <span class="p1">(<span class="default"><a href="openlatt.html#K1" title="OPENLATT:func.1">Topology_of</a> <font color="Olive" title="b1">T</font></span>)</span></div></div>
