fact: Definition Param2b4_list (A A' : Type) (AR : Param2b4.Rel A A') : Param2b4.Rel (list A) (list A') := Param42b_sym _ _ (Param42b_list _ _ (Param2b4_sym _ _ AR)).
imports: Coq(ssreflect) HoTT(HoTT) HoTT_additions Hierarchy