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<section inlist="toc" xml:id="S1">
<tags>
<tag>1</tag>
<tag role="refnum">1</tag>
<tag role="typerefnum">§1</tag>
</tags>
<title><tag close=" ">1</tag>Basic math</title>
<para xml:id="S1.p1">
<equation xml:id="S1.Ex1">
<Math mode="display" tex="a+b+c-d+e" text="((a + b + c) - d) + e" xml:id="S1.Ex1.m1">
<XMath>
<XMApp>
<XMTok meaning="plus" role="ADDOP">+</XMTok>
<XMApp>
<XMTok meaning="minus" role="ADDOP">-</XMTok>
<XMApp>
<XMTok meaning="plus" role="ADDOP">+</XMTok>
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<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
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<XMTok font="italic" role="ID">d</XMTok>
</XMApp>
<XMTok font="italic" role="ID">e</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S1.Ex2">
<Math mode="display" tex="a+bc-de" text="(a + b * c) - d * e" xml:id="S1.Ex2.m1">
<XMath>
<XMApp>
<XMTok meaning="minus" role="ADDOP">-</XMTok>
<XMApp>
<XMTok meaning="plus" role="ADDOP">+</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
</XMApp>
</XMApp>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMTok font="italic" role="ID">d</XMTok>
<XMTok font="italic" role="ID">e</XMTok>
</XMApp>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S1.Ex3">
<Math mode="display" tex="abc/de" text="((a * b * c) / d) * e" xml:id="S1.Ex3.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMApp>
<XMTok meaning="divide" role="MULOP">/</XMTok>
<XMApp>
<XMTok meaning="times" role="MULOP"></XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
</XMApp>
<XMTok font="italic" role="ID">d</XMTok>
</XMApp>
<XMTok font="italic" role="ID">e</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S1.Ex4">
<Math mode="display" tex="a\times b\times c/d\times e" text="((a * b * c) / d) * e" xml:id="S1.Ex4.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMApp>
<XMTok meaning="divide" role="MULOP">/</XMTok>
<XMApp>
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
</XMApp>
<XMTok font="italic" role="ID">d</XMTok>
</XMApp>
<XMTok font="italic" role="ID">e</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
</para>
<paragraph inlist="toc" xml:id="S1.SS0.SSS0.Px1">
<title>N-ary special cases</title>
<para xml:id="S1.SS0.SSS0.Px1.p1">
<equation xml:id="S1.Ex5">
<Math mode="display" tex="a\times b\times c\times d" text="a * b * c * d" xml:id="S1.Ex5.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
<XMTok font="italic" role="ID">d</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S1.Ex6">
<Math mode="display" tex="(a\times b)\times(c\times d)" text="a * b * c * d" xml:id="S1.Ex6.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP">×</XMTok>
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<XMRef idref="S1.Ex6.m1.1"/>
<XMWrap>
<XMTok role="OPEN" stretchy="false">(</XMTok>
<XMApp xml:id="S1.Ex6.m1.1">
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
</XMApp>
<XMTok role="CLOSE" stretchy="false">)</XMTok>
</XMWrap>
</XMDual>
<XMDual>
<XMRef idref="S1.Ex6.m1.2"/>
<XMWrap>
<XMTok role="OPEN" stretchy="false">(</XMTok>
<XMApp xml:id="S1.Ex6.m1.2">
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
<XMTok font="italic" role="ID">d</XMTok>
</XMApp>
<XMTok role="CLOSE" stretchy="false">)</XMTok>
</XMWrap>
</XMDual>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S1.Ex7">
<Math mode="display" tex="((a\times b)\times(c\times d))" text="a * b * c * d" xml:id="S1.Ex7.m1">
<XMath>
<XMDual>
<XMRef idref="S1.Ex7.m1.1"/>
<XMWrap>
<XMTok role="OPEN" stretchy="false">(</XMTok>
<XMApp xml:id="S1.Ex7.m1.1">
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMDual>
<XMRef idref="S1.Ex7.m1.1.1"/>
<XMWrap>
<XMTok role="OPEN" stretchy="false">(</XMTok>
<XMApp xml:id="S1.Ex7.m1.1.1">
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
</XMApp>
<XMTok role="CLOSE" stretchy="false">)</XMTok>
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<XMDual>
<XMRef idref="S1.Ex7.m1.1.2"/>
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<XMTok role="OPEN" stretchy="false">(</XMTok>
<XMApp xml:id="S1.Ex7.m1.1.2">
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
<XMTok font="italic" role="ID">d</XMTok>
</XMApp>
<XMTok role="CLOSE" stretchy="false">)</XMTok>
</XMWrap>
</XMDual>
</XMApp>
<XMTok role="CLOSE" stretchy="false">)</XMTok>
</XMWrap>
</XMDual>
</XMath>
</Math>
</equation>
</para>
<para xml:id="S1.SS0.SSS0.Px1.p2">
<equation xml:id="S1.Ex8">
<Math mode="display" tex="a/b/c" text="a / b / c" xml:id="S1.Ex8.m1">
<XMath>
<XMApp>
<XMTok meaning="divide" role="MULOP">/</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S1.Ex9">
<Math mode="display" tex="\frac{a}{b}/c" text="a / b / c" xml:id="S1.Ex9.m1">
<XMath>
<XMApp>
<XMTok meaning="divide" role="MULOP">/</XMTok>
<XMApp>
<XMTok mathstyle="display" meaning="divide" role="FRACOP"/>
<XMTok font="italic" role="ID">a</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
</XMApp>
<XMTok font="italic" role="ID">c</XMTok>
</XMApp>
</XMath>
</Math>
</equation>
<equation xml:id="S1.Ex10">
<Math mode="display" tex="a/\frac{b}{c}" text="a / b / c" xml:id="S1.Ex10.m1">
<XMath>
<XMApp>
<XMTok meaning="divide" role="MULOP">/</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMApp>
<XMTok mathstyle="display" meaning="divide" role="FRACOP"/>
<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
</XMApp>
</XMApp>
</XMath>
</Math>
</equation>
</para>
<para xml:id="S1.SS0.SSS0.Px1.p3">
<equation xml:id="S1.Ex11">
<Math mode="display" tex="a\times\framebox{$b\times c$}" text="a * b * c" xml:id="S1.Ex11.m1">
<XMath>
<XMApp>
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">a</XMTok>
<XMApp enclose="box">
<XMTok meaning="times" role="MULOP">×</XMTok>
<XMTok font="italic" role="ID">b</XMTok>
<XMTok font="italic" role="ID">c</XMTok>
</XMApp>
</XMApp>
</XMath>
</Math>
</equation>
</para>
</paragraph>
</section>
</document>