title: in over multiple lists
body: <p>I was recently confused by this</p>
  
  <pre class="lang-py prettyprint-override"><code>if 2 in ([1,2] or [3,4]) : print(True)
  else: print(False)
  #prints True
  </code></pre>
  
  <ol>
  <li><code>or</code> is a boolean operator so how can it be applied to lists?</li>
  <li>why does it work the same as <code>if 2 in [1,2] or [3,4]</code>?</li>
  </ol>