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<b>consider </b><font color="Maroon" title="c1">o</font>, <font color="Maroon" title="c2">m</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/>
<b>take </b>
 <a href="cat_4.html#G1" title="CAT_4:aggr.1">ProdCatStr</a>(# <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">o</font></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"><font color="Maroon" title="c2">m</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>,<span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c2">m</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c2">m</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c2">m</font>,<font color="Maroon" title="c2">m</font> <a href="cat_1.html#K1" title="CAT_1:func.1">.--&gt;</a> <font color="Maroon" title="c2">m</font></span>)</span>,<span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">o</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c2">m</font></span>)</span>,<span class="p1">(<span class="default"><a href="algstr_1.html#K1" title="ALGSTR_1:func.1">Extract</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c1">o</font>,<font color="Maroon" title="c1">o</font> <a href="funcop_1.html#K17" title="FUNCOP_1:func.17">:-&gt;</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c1">o</font>,<font color="Maroon" title="c1">o</font> <a href="funcop_1.html#K17" title="FUNCOP_1:func.17">:-&gt;</a> <font color="Maroon" title="c2">m</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c1">o</font>,<font color="Maroon" title="c1">o</font> <a href="funcop_1.html#K17" title="FUNCOP_1:func.17">:-&gt;</a> <font color="Maroon" title="c2">m</font></span>)</span> #)
;<br/>

<b>thus </b><a NAME="E2:6_1_1"/>
not  <a href="cat_4.html#G1" title="CAT_4:aggr.1">ProdCatStr</a>(# <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">o</font></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"><font color="Maroon" title="c2">m</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>,<span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c2">m</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c2">m</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c2">m</font>,<font color="Maroon" title="c2">m</font> <a href="cat_1.html#K1" title="CAT_1:func.1">.--&gt;</a> <font color="Maroon" title="c2">m</font></span>)</span>,<span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">o</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Maroon" title="c2">m</font></span>)</span>,<span class="p1">(<span class="default"><a href="algstr_1.html#K1" title="ALGSTR_1:func.1">Extract</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c1">o</font>,<font color="Maroon" title="c1">o</font> <a href="funcop_1.html#K17" title="FUNCOP_1:func.17">:-&gt;</a> <font color="Maroon" title="c1">o</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c1">o</font>,<font color="Maroon" title="c1">o</font> <a href="funcop_1.html#K17" title="FUNCOP_1:func.17">:-&gt;</a> <font color="Maroon" title="c2">m</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c1">o</font>,<font color="Maroon" title="c1">o</font> <a href="funcop_1.html#K17" title="FUNCOP_1:func.17">:-&gt;</a> <font color="Maroon" title="c2">m</font></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" title="CAT_1:def.1">CAT_1:def 1</a></i>;<br/>


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