Invval inv_clause : 
  inversion_kind ->
  Tactypes.or_and_intro_pattern option ->
  Names.Id.t list ->
  Tactypes.quantified_hypothesis ->
  unit Proofview.tacticval inv : 
  inversion_kind ->
  Tactypes.or_and_intro_pattern option ->
  Tactypes.quantified_hypothesis ->
  unit Proofview.tacticval dinv : 
  inversion_kind ->
  EConstr.constr option ->
  Tactypes.or_and_intro_pattern option ->
  Tactypes.quantified_hypothesis ->
  unit Proofview.tacticval inv_tac : Names.Id.t -> unit Proofview.tacticval inv_clear_tac : Names.Id.t -> unit Proofview.tacticval dinv_tac : Names.Id.t -> unit Proofview.tacticval dinv_clear_tac : Names.Id.t -> unit Proofview.tactic