FamilyExst" id="provingground.induction.TypFamilyExst" class="extype">TypFamilyExst</a></span>, <span name="cnstTyp">cnstTyp: <a href="../HoTT$$Typ.html" name="provingground.HoTT.Typ" id="provingground.HoTT.Typ" class="extype">Typ</a>[<a href="../HoTT$$Term.html" name="provingground.HoTT.Term" id="provingground.HoTT.Term" class="extype">Term</a>]</span>)</span><span class="result"> extends <a href="../../scala/index.html#Exception=Exception" name="scala.Exception" id="scala.Exception" class="extmbr">Excepti