fact: Definition Param2a4_list (A A' : Type) (AR : Param2a4.Rel A A') : Param2a4.Rel (list A) (list A') := Param42a_sym _ _ (Param42a_list _ _ (Param2a4_sym _ _ AR)).
imports: Coq(ssreflect) HoTT(HoTT) HoTT_additions Hierarchy