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<div><span class="kw">theorem </span><a NAME="T26"><span class="comment"><font color="firebrick">:: ZF_LANG:26</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">H</font> being   <a href="zf_lang.html#NM2" title="ZF_LANG:NM.2">ZF-formula</a>  st <font color="Olive" title="b1">H</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 holds <br/><font color="Olive" title="b1">H</font> is  <a href="zf_lang.html#V4" title="ZF_LANG:attr.4">negative</a>  <span class="kw">by</span> <span class="lab"><a class="ref" href="zf_lang.html#T23" target="_self" onmouseover="rs('zf_lang/T23')" onmouseout="rh()">Th23</a></span>;<br/></div></div>
