title: F# - how to turn a list into a list of list?
body: <p>I was wondering how to make a list such as </p>
  
  <pre><code>[1;2;3;4]
  </code></pre>
  
  <p>and turn it into</p>
  
  <pre><code>[[1];[2];[3];[4]]
  </code></pre>
  
  <p>I was thinking of using List.init but that didn't work</p>