<?xml version="1.0"?>
<div class="add">

<b>consider </b><font color="Maroon" title="c1">X</font> being  <a href="algstr_0.html#V36" title="ALGSTR_0:attr.36">strict</a> <a href="funcsdom.html#NM1" title="FUNCSDOM:NM.1">Ring</a>;<br/>
<b>set </b><font color="Maroon" title="c2">D</font> = <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">X</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>;<br/>
<a NAME="E2:37_1_1"/><i><font color="Green" title="E26">A1</font></i>: 
for <font color="Olive" title="b1">x</font> being   <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">X</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> holds  <font color="Olive" title="b1">x</font> is  <a href="algstr_0.html#V36" title="ALGSTR_0:attr.36">strict</a> <a href="funcsdom.html#NM1" title="FUNCSDOM:NM.1">Ring</a>
 
<b>by </b><i><a class="ref" href="tarski.html#D1" title="TARSKI:def.1">TARSKI:def 1</a></i>;<br/>
<b>take </b>
<span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">X</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span>
;<br/>

<b>thus </b><a NAME="E3:37_1_1"/>
( <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">X</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> is <a href="ringcat1.html#V4" title="RINGCAT1:attr.4">Ring_DOMAIN-like</a> &amp; not <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><font color="Maroon" title="c1">X</font></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a> )
 <b>by </b><i><a class="txt" href="ringcat1.html#E2:37_1_1"><i><font color="Green" title="E26">A1</font></i></a>, <a class="ref" href="ringcat1.html#D12" target="_self" title="RINGCAT1:def.12">Def12</a></i>;<br/>


</div>
