X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FnCicSubstitution.mli;h=158f53fdc7113cc1ff2b1a6986cf74fefffb6614;hb=c25986cdbd05f0c06d93f850453b5f82695b7814;hp=30a6c74516676b03790748bd4e75fe6313ffab0f;hpb=cf3c2f9d76c0483afc91ad89c0ae2517081ce912;p=helm.git

diff --git a/helm/software/components/ng_kernel/nCicSubstitution.mli b/helm/software/components/ng_kernel/nCicSubstitution.mli
index 30a6c7451..158f53fdc 100644
--- a/helm/software/components/ng_kernel/nCicSubstitution.mli
+++ b/helm/software/components/ng_kernel/nCicSubstitution.mli
@@ -37,6 +37,20 @@ val lift : ?from:int -> int -> NCic.term -> NCic.term
 (*  well typed and avoid_beta_redexes is true.                          *)
 val subst : ?avoid_beta_redexes:bool -> NCic.term -> NCic.term -> NCic.term
 
+(* psubst [avoid] [delift] [lift_args] [t] [map_arg] [args]              
+ *  [avoid] : do not leave newly created beta-redexes, default false
+ *  [delift] : perform delifting
+ *  [t] : term to fill in
+ *  [lift_args] : lift argument after map_arg is applied
+ *  [args] : stuff to substitute
+ *  [map_arg] : map the argument to obtain a term
+ *    the function is ReductionStrategy.from_env_for_unwind when psubst is
+ *    used to implement nCicReduction.unwind'                              *)
+val psubst : 
+  ?avoid_beta_redexes:bool -> bool -> int -> 
+  ('a -> NCic.term) -> 'a list -> NCic.term -> 
+    NCic.term
+
 (* subst_meta (n, Ctx [t_1 ; ... ; t_n]) t                                  *)
 (*  returns the term [t] where [Rel i] is substituted with [t_i] lifted by n *)
 (*  [t_i] is lifted as usual when it crosses an abstraction                  *)