(* --------------------------------------------------------------------
 * Copyright (c) - 2012--2015 - IMDEA Software Institute
 * Copyright (c) - 2012--2015 - Inria
 * 
 * Distributed under the terms of the CeCILL-C-V1 license
 * -------------------------------------------------------------------- *)

(* -------------------------------------------------------------------- *)
open EcSymbols
open EcTypes
open EcDecl
open EcFol
open EcAlgebra
open EcCoreGoal

(* -------------------------------------------------------------------- *)
val is_module_loaded : EcEnv.env -> bool

(* -------------------------------------------------------------------- *)
val ring_symbols  : EcEnv.env -> EcDecl.rkind -> ty -> (symbol * (bool * ty)) list
val field_symbols : EcEnv.env -> ty -> (symbol * (bool * ty)) list

val ring_axioms  : EcEnv.env -> ring  -> (symbol * form) list
val field_axioms : EcEnv.env -> field -> (symbol * form) list

(* -------------------------------------------------------------------- *)
val t_ring : ring -> eq list -> form * form -> FApi.backward
val t_ring_simplify : ring -> eq list -> form * form -> FApi.backward

val t_ring_congr :
     cring -> RState.rstate -> int list -> form list -> FApi.backward 

(* -------------------------------------------------------------------- *)
val t_field : field -> eq list -> form * form -> FApi.backward
val t_field_simplify : field -> eq list -> form * form -> FApi.backward

val t_field_congr :
     cfield -> RState.rstate -> int list -> form list -> FApi.backward