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<div><span class="kw">theorem </span><a NAME="T6"><span class="comment"><font color="firebrick">:: SUPINF_2:6</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font>, <font color="Olive" title="b2">Y</font> being   non  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of <a href="numbers.html#K6" title="NUMBERS:func.6">ExtREAL</a> holds <br/> ( <font color="Olive" title="b1">X</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Olive" title="b2">Y</font> iff  <a href="supinf_2.html#K6" title="SUPINF_2:func.6">-</a> <font color="Olive" title="b1">X</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="supinf_2.html#K6" title="SUPINF_2:func.6">-</a> <font color="Olive" title="b2">Y</font> ) <span class="kw">by</span> <span class="lab"><a class="ref" href="member_1.html#T3" onmouseover="rs('member_1/T3')" onmouseout="rh()">MEMBER_1:3</a></span>;<br/></div></div>
