d="provingground.learning.SortList.Cons" class="extype">Cons</a>[<span name="provingground.learning.SortList.::.Z" class="extype">Z</span>, <span name="provingground.learning.SortList.::.X" class="extype">X</span>, <span name="shapeless.::" class="extype">::</span>[<span name="provingground.learning.SortList.Cons.X" class="extype">X</span>, <span name="provingground.learning.SortList.Cons.U" class="extype">U</span>]]</span></span><div class="fullcomment"><dl class="attributes block"><dt>Definition Classes</