h&#x00A0;x&#x00A0;=&#x00A0;[x]&#x00A0;++&#x00A0;[]
</div>
     <p class="noindent"></div>
<p class="noindent"> the explicit <span 
class="pcrr7t-">import</span><span 
class="pcrr7t-">&#x00A0;Prelude()</span> declaration prevents the automatic import of <span 
class="pcrr7t-">Prelude</span>, while the declaration
<span 
class="pcrr7t-">import</span><span 
class="pcrr7t-">&#x00A0;MyPrelude</span> brings the non-standard prelude into scope. The special syntax for tuples (such as
<span 
class="pcrr7t-">(x,x)</s