title: Recursive function in ML
body: <p>This is curried function that examines only the first two list elements.</p>
  
  <pre><code>fun inn list f = f(hd(list), hd(tl(list)));
  </code></pre>
  
  <p>What I would like to know is any ways that I can go through the rest of the list elements.
  I don't know how I make it recursive.
  Can anybody help me?</p>