i class="material-icons"></i></a></span> <span class="modifier_kind"><span class="modifier"></span> <span class="kind">val</span></span> <span class="symbol"><span class="name">intros</span><span class="result">: <span name="provingground.induction.ConstructorSeqTL.Intros" class="extype">Intros</span></span></span><p class="shortcomment cmt">The introduction rules.</p></li><li class="indented0 " name="scala.Any#isInstanceOf" group="Ungrouped" fullComment="yes" data-isabs="false" visbl="pub"><a id="isInst