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 | | http://functions.wolfram.com/10.08.17.0055.01 | 
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 | | PolyLog[3, -x^2] + PolyLog[3, -y^2] + PolyLog[3, -z^2] - 2 PolyLog[3, x y] - 
   2 PolyLog[3, x z] - 2 PolyLog[3, y z] - 2 PolyLog[3, -(x/y)] - 
   2 PolyLog[3, -(y/z)] - 2 PolyLog[3, -(x/z)] == 
  (Pi^2/3) Log[-(z/y)] + (1/3) Log[-(z/y)]^3 + Log[-(z/y)]^2 Log[-(x/z)] - 
   2 PolyLog[3, 1] /; x + y + z == x y z | 
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 | | Cell[BoxData[RowBox[List[RowBox[List[RowBox[List[RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", SuperscriptBox["x", "2"]]]]], "]"]], "+", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", SuperscriptBox["y", "2"]]]]], "]"]], "+", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", SuperscriptBox["z", "2"]]]]], "]"]], "-", RowBox[List["2", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["x", " ", "y"]]]], "]"]]]], "-", RowBox[List["2", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["x", " ", "z"]]]], "]"]]]], "-", RowBox[List["2", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["y", " ", "z"]]]], "]"]]]], "-", RowBox[List["2", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", FractionBox["x", "y"]]]]], "]"]]]], "-", RowBox[List["2", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", FractionBox["y", "z"]]]]], "]"]]]], "-", RowBox[List["2", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", FractionBox["x", "z"]]]]], "]"]]]]]], "\[Equal]", RowBox[List[RowBox[List[FractionBox[SuperscriptBox["\[Pi]", "2"], "3"], RowBox[List["Log", "[", RowBox[List["-", FractionBox["z", "y"]]], "]"]]]], "+", RowBox[List[FractionBox["1", "3"], SuperscriptBox[RowBox[List["Log", "[", RowBox[List["-", FractionBox["z", "y"]]], "]"]], "3"]]], "+", RowBox[List[SuperscriptBox[RowBox[List["Log", "[", RowBox[List["-", FractionBox["z", "y"]]], "]"]], "2"], RowBox[List["Log", "[", RowBox[List["-", FractionBox["x", "z"]]], "]"]]]], "-", RowBox[List["2", RowBox[List["PolyLog", "[", RowBox[List["3", ",", "1"]], "]"]]]]]]]], "/;", RowBox[List[RowBox[List["x", "+", "y", "+", "z"]], "\[Equal]", RowBox[List["x", " ", "y", " ", "z"]]]]]]]] | 
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   <math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'>  <semantics>  <mrow>  <mrow>  <mrow>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <msup>  <mi> z </mi>  <mn> 2 </mn>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mi> x </mi>  <mo> ⁢ </mo>  <mi> y </mi>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mi> x </mi>  <mo> ⁢ </mo>  <mi> z </mi>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mi> y </mi>  <mo> ⁢ </mo>  <mi> z </mi>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mi> x </mi>  <mi> y </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mi> x </mi>  <mi> z </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mi> y </mi>  <mi> z </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 3 </mn>  </mfrac>  <mo> ⁢ </mo>  <mrow>  <msup>  <mi> log </mi>  <mn> 3 </mn>  </msup>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mi> z </mi>  <mi> y </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> + </mo>  <mrow>  <mrow>  <mi> log </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mi> x </mi>  <mi> z </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <msup>  <mi> log </mi>  <mn> 2 </mn>  </msup>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mi> z </mi>  <mi> y </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> + </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 3 </mn>  </mfrac>  <mo> ⁢ </mo>  <msup>  <mi> π </mi>  <mn> 2 </mn>  </msup>  <mo> ⁢ </mo>  <mrow>  <mi> log </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mi> z </mi>  <mi> y </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 3 </mn>  </msub>  <mo> ( </mo>  <mn> 1 </mn>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  </mrow>  <mo> /; </mo>  <mrow>  <mrow>  <mi> x </mi>  <mo> + </mo>  <mi> y </mi>  <mo> + </mo>  <mi> z </mi>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mi> x </mi>  <mo> ⁢ </mo>  <mi> y </mi>  <mo> ⁢ </mo>  <mi> z </mi>  </mrow>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <ci> Condition </ci>  <apply>  <eq />  <apply>  <plus />  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <power />  <ci> x </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  </apply>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <power />  <ci> y </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  </apply>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <power />  <ci> z </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <ci> x </ci>  <ci> y </ci>  </apply>  </apply>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <ci> x </ci>  <ci> z </ci>  </apply>  </apply>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <ci> y </ci>  <ci> z </ci>  </apply>  </apply>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <ci> x </ci>  <apply>  <power />  <ci> y </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <ci> x </ci>  <apply>  <power />  <ci> z </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <ci> y </ci>  <apply>  <power />  <ci> z </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <plus />  <apply>  <times />  <cn type='rational'> 1 <sep /> 3 </cn>  <apply>  <power />  <apply>  <ln />  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <ci> z </ci>  <apply>  <power />  <ci> y </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  <cn type='integer'> 3 </cn>  </apply>  </apply>  <apply>  <times />  <apply>  <ln />  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <ci> x </ci>  <apply>  <power />  <ci> z </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  <apply>  <power />  <apply>  <ln />  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <ci> z </ci>  <apply>  <power />  <ci> y </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  <cn type='integer'> 2 </cn>  </apply>  </apply>  <apply>  <times />  <cn type='rational'> 1 <sep /> 3 </cn>  <apply>  <power />  <pi />  <cn type='integer'> 2 </cn>  </apply>  <apply>  <ln />  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <ci> z </ci>  <apply>  <power />  <ci> y </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 3 </cn>  <cn type='integer'> 1 </cn>  </apply>  </apply>  </apply>  </apply>  </apply>  <apply>  <eq />  <apply>  <plus />  <ci> x </ci>  <ci> y </ci>  <ci> z </ci>  </apply>  <apply>  <times />  <ci> x </ci>  <ci> y </ci>  <ci> z </ci>  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
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 | | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", SuperscriptBox["x_", "2"]]]]], "]"]], "+", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", SuperscriptBox["y_", "2"]]]]], "]"]], "+", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", SuperscriptBox["z_", "2"]]]]], "]"]], "-", RowBox[List["2", " ", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["x_", " ", "y_"]]]], "]"]]]], "-", RowBox[List["2", " ", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["x_", " ", "z_"]]]], "]"]]]], "-", RowBox[List["2", " ", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["y_", " ", "z_"]]]], "]"]]]], "-", RowBox[List["2", " ", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", FractionBox["x_", "y_"]]]]], "]"]]]], "-", RowBox[List["2", " ", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", FractionBox["y_", "z_"]]]]], "]"]]]], "-", RowBox[List["2", " ", RowBox[List["PolyLog", "[", RowBox[List["3", ",", RowBox[List["-", FractionBox["x_", "z_"]]]]], "]"]]]]]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List[RowBox[List[FractionBox["1", "3"], " ", SuperscriptBox["\[Pi]", "2"], " ", RowBox[List["Log", "[", RowBox[List["-", FractionBox["z", "y"]]], "]"]]]], "+", RowBox[List[FractionBox["1", "3"], " ", SuperscriptBox[RowBox[List["Log", "[", RowBox[List["-", FractionBox["z", "y"]]], "]"]], "3"]]], "+", RowBox[List[SuperscriptBox[RowBox[List["Log", "[", RowBox[List["-", FractionBox["z", "y"]]], "]"]], "2"], " ", RowBox[List["Log", "[", RowBox[List["-", FractionBox["x", "z"]]], "]"]]]], "-", RowBox[List["2", " ", RowBox[List["PolyLog", "[", RowBox[List["3", ",", "1"]], "]"]]]]]], "/;", RowBox[List[RowBox[List["x", "+", "y", "+", "z"]], "\[Equal]", RowBox[List["x", " ", "y", " ", "z"]]]]]]]]]] | 
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