id="equals(AnyRef):Boolean"></a> <span class="permalink"><a href="../../provingground/translation/FreeExpr$$FreePi$.html#equals(x$1:Object):Boolean" title="Permalink"><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="name">equals</span><span class="params">(<span name="arg0">arg0: <a href="../../scala/index.html#AnyRef=Object" name="scala.AnyRef" id="scala.AnyRef" class="extmbr">AnyRe