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<paragraph inlist="toc" xml:id="S0.SS0.SSS0.Px1">
<title>Sideset</title>
<para xml:id="S0.SS0.SSS0.Px1.p1">
<equation xml:id="S0.Ex1">
<Math mode="display" tex="\sideset{}{{}^{\prime}}{\sum}_{i=1}^{\infty}S_{i}" text="((sum ^ prime) _ (i = 1)) ^ infinity * S _ i" xml:id="S0.Ex1.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="mid1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="mid1"/>
<XMApp scriptpos="mid1">
<XMTok role="SUPERSCRIPTOP" scriptpos="post2"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok fontsize="70%" name="prime" role="SUPOP">′</XMTok>
</XMApp>
<XMApp>
<XMTok fontsize="70%" meaning="equals" role="RELOP">=</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">i</XMTok>
<XMTok fontsize="70%" meaning="1" role="NUMBER">1</XMTok>
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</XMApp>
<XMTok fontsize="70%" meaning="infinity" name="infty" role="ID">∞</XMTok>
</XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="post1"/>
<XMTok font="italic" role="UNKNOWN">S</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">i</XMTok>
</XMApp>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex2">
<Math mode="display" tex="\sideset{{}_{a}}{{}_{c}}{\sum}x" text="_ a sum _ c * x" xml:id="S0.Ex2.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUBSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex3">
<Math mode="display" tex="\sideset{{}^{b}}{{}^{d}}{\sum}x" text="^ b sum ^ d * x" xml:id="S0.Ex3.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUPERSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex4">
<Math mode="display" tex="\sideset{{}_{a}}{{}^{d}}{\sum}x" text="_ a sum ^ d * x" xml:id="S0.Ex4.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUPERSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex5">
<Math mode="display" tex="\sideset{{}^{b}}{{}_{c}}{\sum}x" text="^ b sum _ c * x" xml:id="S0.Ex5.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUBSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex6">
<Math mode="display" tex="\sideset{{}_{a}^{b}}{{}_{c}^{d}}{\sum}x" text="(_ a ^ b sum _ c) ^ d * x" xml:id="S0.Ex6.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUPERSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex7">
<Math mode="display" tex="\sideset{{}^{b}_{a}}{{}^{d}_{c}}{\sum}x" text="(^ b _ a sum ^ d) _ c * x" xml:id="S0.Ex7.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUBSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="post3"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex8">
<Math mode="display" tex="\sideset{{}_{a}{}^{b}}{{}_{c}{}^{d}}{\sum}x" text="(_ a ^ b sum _ c) ^ d * x" xml:id="S0.Ex8.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUPERSCRIPTOP" scriptpos="post5"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="post4"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex9">
<Math mode="display" tex="\sideset{{}^{b}{}_{a}}{{}^{d}{}_{c}}{\sum}x" text="(^ b _ a sum ^ d) _ c * x" xml:id="S0.Ex9.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUBSCRIPTOP" scriptpos="post5"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="post4"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
</para>
</paragraph>
<paragraph inlist="toc" xml:id="S0.SS0.SSS0.Px2">
<title>Classic</title>
<para xml:id="S0.SS0.SSS0.Px2.p1">
<equation xml:id="S0.Ex10">
<Math mode="display" tex="{}_{a}^{b}\sum_{c}^{d}x" text="(_ a ^ b (sum _ c) ^ d)@(x)" xml:id="S0.Ex10.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="mid1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="mid1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex11">
<Math mode="display" tex="{}^{b}_{a}\sum^{d}_{c}x" text="(^ b _ a (sum ^ d) _ c)@(x)" xml:id="S0.Ex11.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="mid1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="mid1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex12">
<Math mode="display" tex="{}_{a}^{b}\sum\nolimits_{c}^{d}x" text="(_ a ^ b (sum _ c) ^ d)@(x)" xml:id="S0.Ex12.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="post1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="post1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="post1">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex13">
<Math mode="display" tex="{}^{b}_{a}\sum\nolimits^{d}_{c}x" text="(^ b _ a (sum ^ d) _ c)@(x)" xml:id="S0.Ex13.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="post1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="post1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="post1">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex14">
<Math mode="display" tex="{}_{a}{}^{b}\sum{}_{c}{}^{d}x" text="(_ a ^ b sum)@(_ c ^ d x)" xml:id="S0.Ex14.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex15">
<Math mode="display" tex="{}^{b}{}_{a}\sum{}^{d}{}_{c}x" text="(^ b _ a sum)@(^ d _ c x)" xml:id="S0.Ex15.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
</XMApp>
</XMath>
</Math>
</equation>
</para>
</paragraph>
<paragraph inlist="toc" xml:id="S0.SS0.SSS0.Px3">
<title>Multi</title>
<para xml:id="S0.SS0.SSS0.Px3.p1">
<equation xml:id="S0.Ex16">
<Math mode="display" tex="{}_{a}^{b}{}_{c}{}_{d}^{e}\sum\nolimits_{f}^{g}x" text="(_ a ^ b _ c _ d ^ e (sum _ f) ^ g)@(x)" xml:id="S0.Ex16.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="post1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="post1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="post1">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">f</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">g</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">e</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S0.Ex17">
<Math mode="display" tex="{}_{a}^{b}{}_{c}{}_{d}^{e}\sum\nolimits_{f}^{g}{}_{i}{}_{j}^{k}x" text="(_ a ^ b _ c _ d ^ e (sum _ f) ^ g)@(_ i _ j ^ k x)" xml:id="S0.Ex17.m1">
<XMath>
<XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="post1"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="post1"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="post1">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">f</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">g</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">e</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">d</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">c</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">b</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">a</XMTok>
</XMApp>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre2"/>
<XMApp>
<XMTok role="SUBSCRIPTOP" scriptpos="pre1"/>
<XMApp>
<XMTok role="SUPERSCRIPTOP" scriptpos="pre1"/>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">k</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">j</XMTok>
</XMApp>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">i</XMTok>
</XMApp>
</XMApp>
</XMath>
</Math>
</equation>
</para>
<para xml:id="S0.SS0.SSS0.Px3.p2">
<equation xml:id="S0.Ex18">
<Math mode="display" tex="\sideset{u}{{}_{e}v}{\sum}x" text="u * sum _ e * v * x" xml:id="S0.Ex18.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMTok font="italic" role="UNKNOWN">u</XMTok>
<XMApp scriptpos="mid1">
<XMTok role="SUBSCRIPTOP" scriptpos="post2"/>
<XMTok mathstyle="display" meaning="sum" role="SUMOP" scriptpos="mid">∑</XMTok>
<XMTok font="italic" fontsize="70%" role="UNKNOWN">e</XMTok>
</XMApp>
<XMTok font="italic" role="UNKNOWN">v</XMTok>
<XMTok font="italic" role="UNKNOWN">x</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
</para>
</paragraph>
</document>