<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T27"><span class="comment"><font color="firebrick">:: CFUNCDOM:27</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">A</font> being   non  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>   <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  holds   <a href="cfuncdom.html#K8" title="CFUNCDOM:func.8">CAlgebra</a> <font color="Olive" title="b1">A</font> is   <a href="cfuncdom.html#NM1" title="CFUNCDOM:NM.1">ComplexAlgebra</a> ;<br/></div></div>
