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<b>let </b><font color="Maroon" title="c1">K</font> be  non <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a> <a href="rlvect_1.html#V4" title="RLVECT_1:attr.4">add-associative</a> <a href="rlvect_1.html#V5" title="RLVECT_1:attr.5">right_zeroed</a> <a href="rlvect_1.html#V6" title="RLVECT_1:attr.6">right_complementable</a> <a href="vectsp_1.html#V7" title="VECTSP_1:attr.7">well-unital</a>  <a href="vectsp_1.html#L3" title="VECTSP_1:struct.3">doubleLoopStr</a> ;<br/><b>let </b><font color="Maroon" title="c2">J</font> be   <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <font color="Maroon" title="c1">K</font>,<font color="Maroon" title="c1">K</font>;<br/>



<a NAME="E1:76"/>
( <font color="Maroon" title="c2">J</font> is <a href="mod_4.html#V8" title="MOD_4:attr.8">antiisomorphism</a> iff  <a href="mod_4.html#K7" title="MOD_4:func.7">opp</a> <font color="Maroon" title="c2">J</font> is <a href="mod_4.html#V7" title="MOD_4:attr.7">isomorphism</a> )
 
<b>by </b><i><a class="ref" href="mod_4.html#T42" target="_self" title="MOD_4:th.42">Th42</a></i>;<br/>
<b>hence </b><a NAME="E2:76"/>
( <font color="Maroon" title="c2">J</font> is <a href="mod_4.html#V12" title="MOD_4:attr.12">antiautomorphism</a> iff  <a href="mod_4.html#K7" title="MOD_4:func.7">opp</a> <font color="Maroon" title="c2">J</font> is <a href="mod_4.html#V7" title="MOD_4:attr.7">isomorphism</a> )
 <b>by </b><i><a class="ref" href="mod_4.html#D17" target="_self" title="MOD_4:def.17">Def17</a></i>;<br/>


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