text"
	  >x' :: Int
</span
	  ><a href="#"
	  ><span class="hs-identifier hs-var hs-var"
	    >x'</span
	    ></a
	  ></span
	></span
      ><span
      > </span
      ><span class="hs-glyph"
      >=</span
      ><span
      > </span
      ><span class="annot"
      ><span class="annottext"
	>[Int] -&gt; Int
forall a. Num a =&gt; [a] -&gt; a
forall (t :: * -&gt; *) a. (Foldable t, Num a) =&gt; t a -&gt; a
</span
	><span class="hs-identifier hs-var"
	>sum</span
	></span
      ><span
      > </span
      ><s