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<b>let </b><font color="Maroon">K</font> be   <a href="card_1.html#NM1">Cardinal</a>;<br/><b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> ;<br/>



<b>thus </b> <a href="card_3.html#K7" target="_self">Product</a> <span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">x</font></span><a href="tarski.html#K1">}</a></span> <a href="funcop_1.html#K2">--&gt;</a> <font color="Maroon">K</font></span>)</span> = 
 <a href="card_1.html#K1">Card</a> <span class="p1">(<span class="default"><a href="funct_2.html#K1">Funcs</a> <span class="p2"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">x</font></span><a href="tarski.html#K1">}</a></span>,<font color="Maroon">K</font></span>)</span>
<b>by </b><i/>
<br/>.= 
 <a href="card_1.html#K1">Card</a> <font color="Maroon">K</font>
<b>by </b><i><a class="ref" href="funct_5.html#T65">FUNCT_5:65</a></i>
<br/>.= 
<font color="Maroon">K</font>
<b>by </b><i><a class="ref" href="card_1.html#D5">CARD_1:def 5</a></i>
;<br/>


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