@@ -450,6 +450,13 @@ isSuper super tipe =
450 Appendable -> isString h n || isList h n
450 Appendable -> isString h n || isList h n
451 CompAppend -> isString h n || isList h n && isSuper Comparable (head args)
451 CompAppend -> isString h n || isList h n && isSuper Comparable (head args)
456+ Comparable -> isSuper super a && isSuper super b && maybe True (isSuper super) maybeC