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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E34">Th40</font></span>: <a NAME="T40"><span class="comment"><font color="firebrick">:: MATRIXR2:40</font></span><br/></a><div class="add"> <a href="matrix_1.html#K9" title="MATRIX_1:func.9">Permutations</a> <a href="numbers.html#K5" title="NUMBERS:func.5">0</a> <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"><span class="p2">(<span class="default"><a href="finseq_1.html#K6" title="FINSEQ_1:func.6">&lt;*&gt;</a> <a href="numbers.html#NK1" title="NUMBERS:NK.1">NAT</a></span>)</span></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span></div></div>
