title: Rails if statement syntax
body: <p>I've written the following ERB and am getting a syntax error at the question mark. This helper function from devise currently evaluates as false. What have I missed?</p>
  
  <pre><code>&lt;%= if user_signed_in? %&gt;
  &lt;%= render 'form' %&gt;
  &lt;%= end %&gt;
  </code></pre>