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authorGravatar Samuel Mimram <samuel.mimram@ens-lyon.org>2004-07-28 21:54:47 +0000
committerGravatar Samuel Mimram <samuel.mimram@ens-lyon.org>2004-07-28 21:54:47 +0000
commit6b649aba925b6f7462da07599fe67ebb12a3460e (patch)
tree43656bcaa51164548f3fa14e5b10de5ef1088574 /kernel/reduction.mli
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+(************************************************************************)
+(* v * The Coq Proof Assistant / The Coq Development Team *)
+(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
+(* \VV/ **************************************************************)
+(* // * This file is distributed under the terms of the *)
+(* * GNU Lesser General Public License Version 2.1 *)
+(************************************************************************)
+
+(*i $Id: reduction.mli,v 1.56.8.1 2004/07/16 19:30:26 herbelin Exp $ i*)
+
+(*i*)
+open Term
+open Environ
+(*i*)
+
+(************************************************************************)
+(*s Reduction functions *)
+
+val whd_betaiotazeta : env -> constr -> constr
+val whd_betadeltaiota : env -> constr -> constr
+val whd_betadeltaiota_nolet : env -> 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
+
+val conv_sort : sorts conversion_function
+val conv_sort_leq : sorts conversion_function
+
+val conv : types conversion_function
+val conv_leq : types conversion_function
+val conv_leq_vecti : types array conversion_function
+
+(************************************************************************)
+
+(* Builds an application node, reducing beta redexes it may produce. *)
+val beta_appvect : 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 -> Sign.rel_context * types
+val dest_prod_assum : env -> types -> Sign.rel_context * types
+
+val dest_arity : env -> types -> Sign.arity
+val is_arity : env -> types -> bool