data/snuggletex/143.mml
<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>E</mi><mfenced close=")" open="("><mrow><mo>-</mo><mi>i</mi><msup><mi>k</mi><mi>′</mi></msup><mo>/</mo><mi>k</mi></mrow></mfenced><mo>=</mo><mfenced close=")" open="("><mrow><mn>1</mn><mo>/</mo><mi>k</mi></mrow></mfenced><mi>E</mi><mfenced close=")" open="("><msup><mi>k</mi><mi>′</mi></msup></mfenced></math>