op-dict-8-ref.html

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<!DOCTYPE html>

<html>

<head>

  <title>op-dict lspace and rspace</title>

</head>

<body>

  <math>

    <mrow>

      <mi>x</mi><mo form="prefix" lspace="0.16666666666666666em" rspace="0em">&#x2202;</mo><mi>y</mi>

    </mrow>

  </math>

</body>

</html>