title: Using bitwise AND operation in haskell
body: <p>why doesn't the code</p>
  
  <pre><code>import Data.Bits
  
  a = (.&amp;.) 6 9
  </code></pre>
  
  <p>give me </p>
  
  <pre><code>9
  </code></pre>
  
  <p>Can someone explain to me why this doesn't work. Cheers !</p>