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<span class="kw">take </span><font color="Maroon" title="c1">Y</font> =  <a href="struct_0.html#G1" title="STRUCT_0:aggr.1">1-sorted</a>(# 1 #); <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> ( <font color="Maroon" title="c1">Y</font> is  <a href="struct_0.html#V7" title="STRUCT_0:attr.7">trivial</a>  &amp; not <font color="Maroon" title="c1">Y</font> is  <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>  )</span><br/>

<span class="kw">thus </span><a NAME="E1:32_1_1"/>
( <font color="Maroon" title="c1">Y</font> is  <a href="struct_0.html#V7" title="STRUCT_0:attr.7">trivial</a>  &amp; not <font color="Maroon" title="c1">Y</font> is  <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>  )
 <span class="kw">by</span> <span class="lab"><a class="ref" href="struct_0.html#D9" target="_self" title="STRUCT_0:def.9">Def9</a>, <a class="ref" href="card_1.html#T87" title="CARD_1:th.87">CARD_1:87</a></span>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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