ght : <span>f:<span>(<span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'b</span> <span>&#45;&gt;</span> <span class="type-var">'b</span>)</span></span> <span>&#45;&gt;</span> <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>&#45;&gt;</span> <span>init:<span class="type-var">'b</span></span> <span>&#45;&gt;</span> <span class="type-var">'b</span></code></dt><dd><p><code>fold_right ~f t ~init</code> combines the elements of <code>t</code> using