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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E12">Th11</font></span>: <a NAME="T11"><span class="comment"><font color="firebrick">:: LANG1:11</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">a</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds   <a href="lang1.html#K3" title="LANG1:func.3">Lang</a> <span class="p1">(<span class="default"><a href="lang1.html#K6" title="LANG1:func.6">EmptyGrammar</a> <font color="Olive" title="b1">a</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span></div></div>
