reg054.idr:18:5:When elaborating left hand side of inf: When elaborating an application of constructor Main.MkInfer: Attempting concrete match on polymorphic argument: 0 reg054.idr:34:7:When elaborating left hand side of weird: When elaborating argument x to Main.weird: No explicit types on left hand side: Char reg054.idr:37:1-8:When elaborating left hand side of tctrick: When elaborating an application of Main.tctrick: Can't unify Maybe a1 (Type of Just x) with a (Expected type)