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<b>let </b><font color="Maroon" title="c1">R</font> be   <a href="relat_1.html#NM1" title="RELAT_1:NM.1">Relation</a>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> for <font color="Olive" title="b1">X</font> being   <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a>  holds <br/> ( <font color="Olive" title="b1">X</font> <a href="orders_1.html#R4" title="ORDERS_1:pred.4">has_upper_Zorn_property_wrt</a> <font color="Maroon" title="c1">R</font> <a href="relat_1.html#K4" title="RELAT_1:func.4">~</a>  iff <font color="Olive" title="b1">X</font> <a href="orders_1.html#R5" title="ORDERS_1:pred.5">has_lower_Zorn_property_wrt</a> <font color="Maroon" title="c1">R</font> )</span><br/><b>let </b><font color="Maroon" title="c2">X</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> ( <font color="Maroon" title="c2">X</font> <a href="orders_1.html#R4" title="ORDERS_1:pred.4">has_upper_Zorn_property_wrt</a> <font color="Maroon" title="c1">R</font> <a href="relat_1.html#K4" title="RELAT_1:func.4">~</a>  iff <font color="Maroon" title="c2">X</font> <a href="orders_1.html#R5" title="ORDERS_1:pred.5">has_lower_Zorn_property_wrt</a> <font color="Maroon" title="c1">R</font> )</span><br/>



<a NAME="E1:72"/>
<span class="p1">(<span class="default"><font color="Maroon" title="c1">R</font> <a href="relat_1.html#K4" title="RELAT_1:func.4">~</a> </span>)</span> <a href="relat_1.html#K4" title="RELAT_1:func.4">~</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c1">R</font>
 
;<br/>
<b>hence </b><a NAME="E2:72"/>
( <font color="Maroon" title="c2">X</font> <a href="orders_1.html#R4" title="ORDERS_1:pred.4">has_upper_Zorn_property_wrt</a> <font color="Maroon" title="c1">R</font> <a href="relat_1.html#K4" title="RELAT_1:func.4">~</a>  iff <font color="Maroon" title="c2">X</font> <a href="orders_1.html#R5" title="ORDERS_1:pred.5">has_lower_Zorn_property_wrt</a> <font color="Maroon" title="c1">R</font> )
 <b>by </b><i><a class="ref" href="orders_1.html#T151" target="_self" title="ORDERS_1:th.151">Th151</a></i>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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