<span class="paren2">(<span class="lisp-bg">x</span>)</span>
    <span class="paren2">(<span class="lisp-bg"><i><span class="symbol">let</span></i> <span class="paren3">(<span class="lisp-bg"><span class="paren4">(<span class="lisp-bg"><span class="keyword">#:g3182</span> <span class="paren5">(<span class="lisp-bg"><i><span class="symbol">if</span></i> x 1 0</span>)</span></span>)</span></span>)</span>
      <span class="paren3">(<span class="lisp-bg">not <span class="paren4">(<span class="lisp-bg">zerop <s