Evar_tacticsval instantiate_tac : int -> Ltac_pretype.closed_glob_constr -> (Names.Id.t * Locus.hyp_location_flag) option -> unit Proofview.tacticval instantiate_tac_by_name : Names.Id.t -> Ltac_pretype.closed_glob_constr -> unit Proofview.tacticval let_evar : Names.Name.t -> EConstr.types -> unit Proofview.tactic