)"></a> <span class="permalink"><a href="../../provingground/learning/AdjDiffbleFunction$$Oplus.html#adjDer:((A,C))=&gt;((B,D))=&gt;(A,C)" title="Permalink"><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">adjDer</span><span class="result">: ((<span name="provingground.learning.AdjDiffbleFunction.Oplus.A" class="extype">A</span>, <span name="provingground.learning.AdjDiffbleFun