/* Do not label equations unless they have an <identifier> */
#show: body => {
  for elem in body.children {
    if elem.func() == math.equation and elem.block {
      let numbering = if "label" in elem.fields().keys() { "(1)" } else { none }
      set math.equation(numbering: numbering)
      elem
    } else {
      elem
    }
  }
}