kind"><span class="modifier"></span> <span class="kind">val</span></span> <span class="symbol"><span class="name">valueOpt</span><span class="result">: <span name="scala.Option" class="extype">Option</span>[<a href="HoTT$$Term.html" name="provingground.HoTT.Term" id="provingground.HoTT.Term" class="extype">Term</a>]</span></span><div class="fullcomment"><dl class="attributes block"><dt>Definition Classes</dt><dd><a href="" name="provingground.Context.AppendConstant" id="provingground.Context.AppendConstant"