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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: reduction.mli 13323 2010-07-24 15:57:30Z herbelin $ i*)
(*i*)
open Term
open Environ
open Closure
(*i*)
(************************************************************************)
(*s Reduction functions *)
val whd_betaiotazeta : constr -> constr
val whd_betadeltaiota : env -> constr -> constr
val whd_betadeltaiota_nolet : env -> constr -> constr
val whd_betaiota : constr -> constr
val nf_betaiota : constr -> constr
(************************************************************************)
(*s conversion functions *)
exception NotConvertible
exception NotConvertibleVect of int
type 'a conversion_function = env -> 'a -> 'a -> Univ.constraints
type 'a trans_conversion_function = Names.transparent_state -> env -> 'a -> 'a -> Univ.constraints
type conv_pb = CONV | CUMUL
val sort_cmp :
conv_pb -> sorts -> sorts -> Univ.constraints -> Univ.constraints
val conv_sort : sorts conversion_function
val conv_sort_leq : sorts conversion_function
val trans_conv_cmp : conv_pb -> constr trans_conversion_function
val trans_conv :
?evars:(existential->constr option) -> constr trans_conversion_function
val trans_conv_leq :
?evars:(existential->constr option) -> types trans_conversion_function
val conv_cmp : conv_pb -> constr conversion_function
val conv :
?evars:(existential->constr option) -> constr conversion_function
val conv_leq :
?evars:(existential->constr option) -> types conversion_function
val conv_leq_vecti :
?evars:(existential->constr option) -> types array conversion_function
(* option for conversion *)
val set_vm_conv : (conv_pb -> types conversion_function) -> unit
val vm_conv : conv_pb -> types conversion_function
val set_default_conv : (conv_pb -> types conversion_function) -> unit
val default_conv : conv_pb -> types conversion_function
val default_conv_leq : types conversion_function
(************************************************************************)
(* Builds an application node, reducing beta redexes it may produce. *)
val beta_appvect : constr -> constr array -> constr
(* Builds an application node, reducing the [n] first beta-zeta redexes. *)
val betazeta_appvect : int -> constr -> constr array -> constr
(* Pseudo-reduction rule Prod(x,A,B) a --> B[x\a] *)
val hnf_prod_applist : env -> types -> constr list -> types
(************************************************************************)
(*s Recognizing products and arities modulo reduction *)
val dest_prod : env -> types -> rel_context * types
val dest_prod_assum : env -> types -> rel_context * types
val dest_arity : env -> types -> arity
val is_arity : env -> types -> bool
|
