link"><i class="material-icons"></i></a></span> <span class="modifier_kind"><span class="modifier"></span> <span class="kind">def</span></span> <span class="symbol"><span class="implicit">ensuring</span><span class="params">(<span name="cond">cond: (<a href="" name="provingground.ProbabilityDistribution.Mixture" id="provingground.ProbabilityDistribution.Mixture" class="extype">Mixture</a>[<span name="provingground.ProbabilityDistribution.Mixture.A" class="extype">A</span>]) =&gt; <span name="scala.Boolea