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<title>Operator dictionary</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#operator-fence-separator-or-accent-mo">
<link rel="help" href="https://w3c.github.io/mathml-core/#dictionary-based-attributes">
<link rel="help" href="https://w3c.github.io/mathml-core/#operator-dictionary">
<link rel="help" href="https://w3c.github.io/mathml-core/#stretchy-operator-axis">
<meta name="assert" content="Verify default properties for characters that 