lass="func_signature">
        <code class="type">anyrange</code> <code class="literal">-|-</code> <code class="type">anyrange</code>
        → <code class="returnvalue">boolean</code>
       </p>
       <p>
        Are the ranges adjacent?
       </p>
       <p>
        <code class="literal">numrange(1.1,2.2) -|- numrange(2.2,3.3)</code>
        → <code class="returnvalue">t</code>
       </p></td></tr><tr><td class="func_table_entry"><p class="func_signature">
        <code class="type">anyrange</code