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<span class="kw">consider </span><font color="Maroon" title="c2">x1</font>, <font color="Maroon" title="c3">x2</font>, <font color="Maroon" title="c4">x3</font>, <font color="Maroon" title="c5">x4</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a> <span class="kw"> such that </span><br/><a NAME="E2:30_1_1"/><span class="lab"><font color="Green" title="E11">A1</font></span>: 
<font color="Maroon" title="c1">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="xtuple_0.html#K6" title="XTUPLE_0:func.6">[</a><span class="default"><font color="Maroon" title="c2">x1</font>,<font color="Maroon" title="c3">x2</font>,<font color="Maroon" title="c4">x3</font>,<font color="Maroon" title="c5">x4</font></span><a href="xtuple_0.html#K6" title="XTUPLE_0:func.6">]</a></span>
 <span class="kw">by</span> <span class="lab"><a class="ref" href="xtuple_0.html#D9" target="_self" onmouseover="rs('xtuple_0/D9')" onmouseout="rh()">Def9</a></span>;<br/>
<span class="kw">thus </span><a NAME="E3:30_1_1"/>
<span class="p1"><a href="xtuple_0.html#K6" title="XTUPLE_0:func.6">[</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon" title="c1">x</font> <a href="xtuple_0.html#K7" title="XTUPLE_0:func.7">`1_4</a></span>)</span>,<span class="p2">(<span class="default"><font color="Maroon" title="c1">x</font> <a href="xtuple_0.html#K8" title="XTUPLE_0:func.8">`2_4</a></span>)</span>,<span class="p2">(<span class="default"><font color="Maroon" title="c1">x</font> <a href="xtuple_0.html#NK10" title="XTUPLE_0:NK.10">`3_4</a></span>)</span>,<span class="p2">(<span class="default"><font color="Maroon" title="c1">x</font> <a href="xtuple_0.html#NK11" title="XTUPLE_0:NK.11">`4_4</a></span>)</span></span><a href="xtuple_0.html#K6" title="XTUPLE_0:func.6">]</a></span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c1">x</font>
 <span class="kw">by</span> <span class="lab"><a class="txt" href="#E2:30_1_1"><span class="lab"><font color="Green" title="E11">A1</font></span></a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" 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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