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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E29">tautsat</font></span>: <a NAME="T27"><span class="comment"><font color="firebrick">:: PL_AXIOM:27</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">A</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="pl_axiom.html#K1" title="PL_AXIOM:func.1">PL-WFF</a>  holds <br/> ( <font color="Olive" title="b1">A</font> is  <a href="pl_axiom.html#V3" title="PL_AXIOM:attr.3">tautology</a>  iff  <a href="subset_1.html#K1" title="SUBSET_1:func.1">{}</a> <a href="pl_axiom.html#K1" title="PL_AXIOM:func.1">PL-WFF</a> <a href="pl_axiom.html#R3" title="PL_AXIOM:pred.3">|=</a> <font color="Olive" title="b1">A</font> )</div></div>
