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<b>thus </b><a NAME="E1:2_1_1"/>
( <font color="Maroon">f</font> is <a href="waybel_0.html#V5">antitone</a> implies for <font color="Olive">x</font>, <font color="Olive">y</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S</font>  st <font color="Olive">x</font> <a href="orders_2.html#R1">&lt;=</a> <font color="Olive">y</font> holds <br/><font color="Maroon">f</font> <a href="yellow_6.html#K3">.</a> <font color="Olive">x</font> <a href="orders_2.html#NR2" target="_self">&gt;=</a> <font color="Maroon">f</font> <a href="yellow_6.html#K3">.</a> <font color="Olive">y</font> )
 <b>by </b><i><a class="ref" href="waybel_0.html#D5">WAYBEL_0:def 5</a></i>;<br/>

<b>assume </b><a NAME="E2:2_1_1"/>
for <font color="Olive">x</font>, <font color="Olive">y</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S</font>  st <font color="Olive">x</font> <a href="orders_2.html#R1">&lt;=</a> <font color="Olive">y</font> holds <br/><font color="Maroon">f</font> <a href="yellow_6.html#K3">.</a> <font color="Olive">x</font> <a href="orders_2.html#NR2" target="_self">&gt;=</a> <font color="Maroon">f</font> <a href="yellow_6.html#K3">.</a> <font color="Olive">y</font>
 ;<br/>

<b>hence </b><a NAME="E3:2_1_1"/>
for <font color="Olive">x</font>, <font color="Olive">y</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">S</font>  st <font color="Olive">x</font> <a href="orders_2.html#R1">&lt;=</a> <font color="Olive">y</font> holds <br/>for <font color="Olive">a</font>, <font color="Olive">b</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">T</font>  st <font color="Olive">a</font> <a href="hidden.html#R1">=</a> <font color="Maroon">f</font> <a href="yellow_6.html#K3">.</a> <font color="Olive">x</font> &amp; <font color="Olive">b</font> <a href="hidden.html#R1">=</a> <font color="Maroon">f</font> <a href="yellow_6.html#K3">.</a> <font color="Olive">y</font> holds <br/><font color="Olive">a</font> <a href="orders_2.html#NR2" target="_self">&gt;=</a> <font color="Olive">b</font>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="waybel_0.html#D5">WAYBEL_0:def 5</a><br/>


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