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<div><span class="kw">theorem </span><a NAME="T134"><span class="comment"><font color="firebrick">:: ZF_LANG1:134</font></span><br/></a><div class="add"> <a href="zf_lang.html#K8" title="ZF_LANG:func.8">WFF</a>  <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="zfmisc_1.html#K1" title="ZFMISC_1:func.1">bool</a> <span class="p1"><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">[:</a><span class="default"><a href="numbers.html#NK1" title="NUMBERS:NK.1">NAT</a>,<a href="numbers.html#NK1" title="NUMBERS:NK.1">NAT</a></span><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">:]</a></span></div></div>
