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<b>consider </b><font color="Maroon" title="c4">G</font>, <font color="Maroon" title="c5">H</font> being  <a href="vectsp_1.html#V11" title="VECTSP_1:attr.11">strict</a>  <a href="modcat_1.html#M2" title="MODCAT_1:mode.2">Element</a> of <font color="Maroon" title="c2">V</font><b> such that </b><br/><a NAME="E2:22_1_1"/><i><font color="Green" title="E14">A1</font></i>: 
<font color="Maroon" title="c3">F</font> is  <a href="mod_2.html#V2" title="MOD_2:attr.2">strict</a>  <a href="mod_2.html#M1" title="MOD_2:mode.1">Morphism</a> of <font color="Maroon" title="c4">G</font>,<font color="Maroon" title="c5">H</font>
 <b>by </b><i><a class="ref" href="modcat_1.html#D7" target="_self" title="MODCAT_1:def.7">Def7</a></i>;<br/>
<b>reconsider </b><font color="Maroon" title="c6">F'</font> = <font color="Maroon" title="c3">F</font> as    <a href="mod_2.html#M1" title="MOD_2:mode.1">Morphism</a> of <font color="Maroon" title="c4">G</font>,<font color="Maroon" title="c5">H</font> <b>by </b><i><a class="txt" href="modcat_1.html#E2:22_1_1"><i><font color="Green" title="E14">A1</font></i></a></i>;<br/>
<a NAME="E4:22_1_1"/>
 <a href="mod_2.html#K2" title="MOD_2:func.2">dom</a> <font color="Maroon" title="c6">F'</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">G</font>
 
<b>by </b><i><a class="ref" href="mod_2.html#D11" title="MOD_2:def.11">MOD_2:def 11</a></i>;<br/>
<b>hence </b><a NAME="E5:22_1_1"/>
 <a href="mod_2.html#K2" title="MOD_2:func.2">dom</a> <font color="Maroon" title="c3">F</font> is    <a href="modcat_1.html#M2" title="MODCAT_1:mode.2">Element</a> of <font color="Maroon" title="c2">V</font>
 ;<br/>


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