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<span class="kw">take </span>
1 <a href="funcop_1.html#K16" title="FUNCOP_1:func.16">.--&gt;</a> 1
; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 1 <a href="funcop_1.html#K16" title="FUNCOP_1:func.16">.--&gt;</a> 1 is  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  &amp; 1 <a href="funcop_1.html#K16" title="FUNCOP_1:func.16">.--&gt;</a> 1 is  <a href="funct_1.html#V3" title="FUNCT_1:attr.3">constant</a>  &amp; 1 <a href="funcop_1.html#K16" title="FUNCOP_1:func.16">.--&gt;</a> 1 is  <a href="valued_0.html#V6" title="VALUED_0:attr.6">natural-valued</a>  )</span><br/>

<span class="kw">thus </span><a NAME="E1:115_1_1"/>
(  not 1 <a href="funcop_1.html#K16" title="FUNCOP_1:func.16">.--&gt;</a> 1 is  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  &amp; 1 <a href="funcop_1.html#K16" title="FUNCOP_1:func.16">.--&gt;</a> 1 is  <a href="funct_1.html#V3" title="FUNCT_1:attr.3">constant</a>  &amp; 1 <a href="funcop_1.html#K16" title="FUNCOP_1:func.16">.--&gt;</a> 1 is  <a href="valued_0.html#V6" title="VALUED_0:attr.6">natural-valued</a>  )
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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