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<b>take </b>
 <a href="cat_1.html#G1" title="CAT_1:aggr.1">CatStr</a>(# <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><a href="numbers.html#K6" title="NUMBERS:func.6">0</a> </span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>,<span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default">1</span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>,<span class="p1">(<span class="default">1 <a href="cat_1.html#K2" title="CAT_1:func.2">.--&gt;</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> </span>)</span>,<span class="p1">(<span class="default">1 <a href="cat_1.html#K2" title="CAT_1:func.2">.--&gt;</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> </span>)</span>,<span class="p1">(<span class="default">1,1 <a href="cat_1.html#K1" title="CAT_1:func.1">.--&gt;</a> 1</span>)</span>,<span class="p1">(<span class="default"><a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  <a href="cat_1.html#K2" title="CAT_1:func.2">.--&gt;</a> 1</span>)</span> #)
;<br/>

<b>thus </b><a NAME="E1:9_1_1"/>
not  <a href="cat_1.html#G1" title="CAT_1:aggr.1">CatStr</a>(# <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><a href="numbers.html#K6" title="NUMBERS:func.6">0</a> </span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>,<span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default">1</span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>,<span class="p1">(<span class="default">1 <a href="cat_1.html#K2" title="CAT_1:func.2">.--&gt;</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> </span>)</span>,<span class="p1">(<span class="default">1 <a href="cat_1.html#K2" title="CAT_1:func.2">.--&gt;</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> </span>)</span>,<span class="p1">(<span class="default">1,1 <a href="cat_1.html#K1" title="CAT_1:func.1">.--&gt;</a> 1</span>)</span>,<span class="p1">(<span class="default"><a href="numbers.html#K6" title="NUMBERS:func.6">0</a>  <a href="cat_1.html#K2" title="CAT_1:func.2">.--&gt;</a> 1</span>)</span> #) is <a href="cat_1.html#V2" title="CAT_1:attr.2">void</a>
 <b>by </b><i><a class="ref" href="cat_1.html#D1" target="_self" title="CAT_1:def.1">Def1</a></i>;<br/>


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