Italic formatting is missing for math variables in prince output pdf.
<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mi>σ</mi><mo>−</mo><mi>ε</mi></math>
CSS:
mi{font-style:italic;}
<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mi>σ</mi><mo>−</mo><mi>ε</mi></math>
CSS:
mi{font-style:italic;}
Edited by Balaa