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<b>let </b><font color="Maroon" title="c1">G</font> be  non <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a> <a href="rlvect_1.html#V3" title="RLVECT_1:attr.3">Abelian</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="midsp_2.html#V1" title="MIDSP_2:attr.1">midpoint_operator</a>  <a href="rlvect_1.html#L1" title="RLVECT_1:struct.1">LoopStr</a> ;<br/><b>let </b><font color="Maroon" title="c2">M</font> be  non <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>  <a href="midsp_1.html#L1" title="MIDSP_1:struct.1">MidStr</a> ;<br/><b>let </b><font color="Maroon" title="c3">w</font> be   <a href="funct_2.html#NM1" title="FUNCT_2:NM.1">Function</a> of <span class="p1"><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">[:</a><span class="default">the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c2">M</font>,the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c2">M</font></span><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">:]</a></span>,the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c1">G</font>;<br/><b>let </b><font color="Maroon" title="c4">a</font>, <font color="Maroon" title="c5">c</font>, <font color="Maroon" title="c6">b1</font>, <font color="Maroon" title="c7">b2</font> be   <a href="pre_topc.html#NM2" title="PRE_TOPC:NM.2">Point</a> of <font color="Maroon" title="c2">M</font>;<br/>













<b>assume </b><b>that </b><br/><a NAME="E1:53"/><i><font color="Green" title="E37">A1</font></i>: 
<font color="Maroon" title="c3">w</font> <a href="midsp_2.html#R2" title="MIDSP_2:pred.2">is_atlas_of</a> the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c2">M</font>,<font color="Maroon" title="c1">G</font>
 <b>and </b><br/><a NAME="E2:53"/><i><font color="Green" title="E38">A2</font></i>: 
<font color="Maroon" title="c2">M</font>,<font color="Maroon" title="c1">G</font> <a href="midsp_2.html#R1" title="MIDSP_2:pred.1">are_associated_wrp</a> <font color="Maroon" title="c3">w</font>
 ;<br/>

<a NAME="E3:53"/><i><font color="Green" title="E39">A3</font></i>: 
( <font color="Maroon" title="c4">a</font> <a href="midsp_1.html#K1" title="MIDSP_1:func.1">@</a> <font color="Maroon" title="c5">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c6">b1</font> <a href="midsp_1.html#K1" title="MIDSP_1:func.1">@</a> <font color="Maroon" title="c7">b2</font> iff <font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c7">b2</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c6">b1</font>,<font color="Maroon" title="c5">c</font> )
 
<b>by </b><i><a class="txt" href="midsp_2.html#E1:53"><i><font color="Green" title="E37">A1</font></i></a>, <a class="txt" href="midsp_2.html#E2:53"><i><font color="Green" title="E38">A2</font></i></a>, <a class="ref" href="midsp_2.html#T16" target="_self" title="MIDSP_2:th.16">Th16</a></i>;<br/>
<a NAME="E4:53"/><i><font color="Green" title="E40">A4</font></i>: 
<font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c5">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c6">b1</font></span>)</span> <a href="rlvect_1.html#K3" title="RLVECT_1:func.3">+</a> <span class="p1">(<span class="default"><font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c6">b1</font>,<font color="Maroon" title="c5">c</font></span>)</span>
 
<b>by </b><i><a class="txt" href="midsp_2.html#E1:53"><i><font color="Green" title="E37">A1</font></i></a>, <a class="ref" href="midsp_2.html#D3" target="_self" title="MIDSP_2:def.3">Def3</a></i>;<br/>
<b>thus </b><a NAME="E5:53"/>
( <font color="Maroon" title="c4">a</font> <a href="midsp_1.html#K1" title="MIDSP_1:func.1">@</a> <font color="Maroon" title="c5">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c6">b1</font> <a href="midsp_1.html#K1" title="MIDSP_1:func.1">@</a> <font color="Maroon" title="c7">b2</font> implies <font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c5">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c6">b1</font></span>)</span> <a href="rlvect_1.html#K3" title="RLVECT_1:func.3">+</a> <span class="p1">(<span class="default"><font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c7">b2</font></span>)</span> )
 <b>by </b><i><a class="txt" href="midsp_2.html#E1:53"><i><font color="Green" title="E37">A1</font></i></a>, <a class="txt" href="midsp_2.html#E3:53"><i><font color="Green" title="E39">A3</font></i></a>, <a class="ref" href="midsp_2.html#D3" target="_self" title="MIDSP_2:def.3">Def3</a></i>;<br/>

<b>thus </b><a NAME="E6:53"/>
( <font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c5">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c6">b1</font></span>)</span> <a href="rlvect_1.html#K3" title="RLVECT_1:func.3">+</a> <span class="p1">(<span class="default"><font color="Maroon" title="c3">w</font> <a href="binop_1.html#K2" title="BINOP_1:func.2">.</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c7">b2</font></span>)</span> implies <font color="Maroon" title="c4">a</font> <a href="midsp_1.html#K1" title="MIDSP_1:func.1">@</a> <font color="Maroon" title="c5">c</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c6">b1</font> <a href="midsp_1.html#K1" title="MIDSP_1:func.1">@</a> <font color="Maroon" title="c7">b2</font> )
 <b>by </b><i><a class="txt" href="midsp_2.html#E3:53"><i><font color="Green" title="E39">A3</font></i></a>, <a class="txt" href="midsp_2.html#E4:53"><i><font color="Green" title="E40">A4</font></i></a>, <a class="ref" href="rlvect_1.html#T21" title="RLVECT_1:th.21">RLVECT_1:21</a></i>;<br/>


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