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

<b>consider </b><font color="Maroon">G</font> being   <a href="mod_1.html#NM1">AddGroup</a>;<br/>
<b>take </b>
<span class="p1"><a href="tarski.html#K1">{</a><span class="default"><span class="p2">(<span class="default"><a href="grcat_1.html#K13" target="_self">ID</a> <font color="Maroon">G</font></span>)</span></span><a href="tarski.html#K1">}</a></span>
;<br/>

<a NAME="E2:61_1_1"/>
for <font color="Olive">x</font> being   <a href="hidden.html#M1">set</a>   st <font color="Olive">x</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><span class="p2">(<span class="default"><a href="grcat_1.html#K13" target="_self">ID</a> <font color="Maroon">G</font></span>)</span></span><a href="tarski.html#K1">}</a></span> holds <br/><font color="Olive">x</font> is  <a href="grcat_1.html#V2" target="_self">strict</a> <a href="grcat_1.html#NM1">GroupMorphism</a>
 
<b>by </b><i><a class="ref" href="tarski.html#D1">TARSKI:def 1</a></i>;<br/>
<b>hence </b><a NAME="E3:61_1_1"/>
( <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><span class="p2">(<span class="default"><a href="grcat_1.html#K13" target="_self">ID</a> <font color="Maroon">G</font></span>)</span></span><a href="tarski.html#K1">}</a></span> is <a href="grcat_1.html#V5" target="_self">GroupMorphism_DOMAIN-like</a> &amp; not <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><span class="p2">(<span class="default"><a href="grcat_1.html#K13" target="_self">ID</a> <font color="Maroon">G</font></span>)</span></span><a href="tarski.html#K1">}</a></span> is <a href="xboole_0.html#V1">empty</a> )
 <b>by </b><i/>;<br/>


</div>
