ag-gipp/GoUldI

                             ⇀μ    μ
Syntax::bktmcp: Expression "{ξ   , τ  " has no closing "}".

ToExpression::esntx: Could not parse \{\vec{\xi}^{\mu},\tau^{\mu} as input.

<math 
  xmlns='http://www.w3.org/1998/Math/MathML'>
  <semantics>
    <mi>$Failed</mi>
    <annotation-xml encoding='MathML-Content'>
      <ci>$Failed</ci>
    </annotation-xml>
  </semantics>
</math>