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<a NAME="E1:13_2_1"/>
<span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default">1,<span class="p2"><a href="domain_1.html#K6">{</a><span class="default">0</span><a href="domain_1.html#K6">}</a></span></span><a href="zfmisc_1.html#K2">:]</a></span> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="xboole_0.html#K1">{}</a> 
 
;<br/>
<a NAME="E2:13_2_1"/><b>then </b>
( 1 <a href="catalan2.html#K1" target="_self">--&gt;</a> 0 <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="xboole_0.html#K1">{}</a>  &amp; 1 <a href="catalan2.html#K1" target="_self">--&gt;</a> 0 is <a href="catalan2.html#V1" target="_self">dominated_by_0</a> )
 
<b>by </b><i>, <a class="ref" href="funcop_1.html#D2">FUNCOP_1:def 2</a></i>;<br/>
<b>hence </b><a NAME="E3:13_2_1"/>
 ex <font color="Olive">b<sub>1</sub></font> being  <a href="afinsq_1.html#NM2">XFinSequence</a> of  <a href="numbers.html#K5">NAT</a>  st <br/>( not <font color="Olive">b<sub>1</sub></font> is <a href="xboole_0.html#V1">empty</a> &amp; <font color="Olive">b<sub>1</sub></font> is <a href="catalan2.html#V1" target="_self">dominated_by_0</a> )
 ;<br/>


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