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(* This modules provides useful functions for unification algorithms.
* Used in Trad and Progmach
* This interface will have to be improved.
*)
open Names
open Term
open Sign
open Evd
open Environ
open Reduction
val filter_unique : 'a list -> 'a list
val distinct_id_list : identifier list -> identifier list
val filter_sign :
('a -> identifier * typed_type -> bool * 'a) -> var_context -> 'a ->
'a * identifier list * var_context
val dummy_sort : constr
val do_restrict_hyps : 'a evar_map -> constr -> 'a evar_map * constr
type 'a evar_defs = 'a evar_map ref
val ise_try : 'a evar_defs -> (unit -> bool) list -> bool
val ise_undefined : 'a evar_defs -> constr -> bool
val ise_defined : 'a evar_defs -> constr -> bool
val real_clean :
'a evar_defs ->
section_path -> (identifier * constr) list -> constr -> constr
val new_isevar :
unsafe_env -> 'a evar_defs -> constr -> path_kind -> constr * constr
val evar_define : 'a evar_defs -> constr -> constr -> section_path list
val solve_simple_eqn : (constr -> constr -> bool) -> 'a evar_defs ->
(conv_pb * constr * constr) -> section_path list option
val has_undefined_isevars : 'a evar_defs -> constr -> bool
val head_is_exist : 'a evar_defs -> constr -> bool
val is_eliminator : constr -> bool
val head_is_embedded_exist : 'a evar_defs -> constr -> bool
val headconstant : constr -> section_path
val status_changed : section_path list -> conv_pb * constr * constr -> bool
(* Value/Type constraints *)
type trad_constraint = bool * (constr option * constr option)
val mt_tycon : trad_constraint
val def_vty_con : trad_constraint
val mk_tycon : constr -> trad_constraint
val mk_tycon2 : trad_constraint -> constr -> trad_constraint
(* application *)
val app_dom_tycon : 'a evar_defs -> trad_constraint -> trad_constraint
val app_rng_tycon :
'a evar_defs -> constr -> trad_constraint -> trad_constraint
(* abstraction *)
val abs_dom_valcon : 'a evar_defs -> trad_constraint -> trad_constraint
val abs_rng_tycon : 'a evar_defs -> trad_constraint -> trad_constraint
(* $Id$ *)
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