esults in: &darr;</li>
  <li>Writing <code>\downarrow</code>, results in: &darr;</li>
  <li>Writing <code>\dArr</code>, results in: &dArr;</li>
  <li>Writing <code>\Downarrow</code>, results in: &dArr;</li>
  <li>Writing <code>\harr</code>, results in: &harr;</li>
  <li>Writing <code>\leftrightarrow</code>, results in: &harr;</li>
  <li>Writing <code>\hArr</code>, results in: &hArr;</li>
  <li>Writing <code>\Leftrightarrow</code>, results in: &hArr;</li>
  <li>Writing <code>\crarr</code>, results in: &crarr