X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FnCicReduction.mli;h=713edd1705050d14fe6ee2d1fee270a71f7fd713;hb=2da35c1dc1aff5f852886ac64d641774f2f187cf;hp=1455abd8d05cd52c60afb0b99e378a0ed27a71fa;hpb=0542386e10041791982e7240f281299677b1997b;p=helm.git

diff --git a/helm/software/components/ng_kernel/nCicReduction.mli b/helm/software/components/ng_kernel/nCicReduction.mli
index 1455abd8d..713edd170 100644
--- a/helm/software/components/ng_kernel/nCicReduction.mli
+++ b/helm/software/components/ng_kernel/nCicReduction.mli
@@ -13,6 +13,8 @@
 
 exception AssertFailure of string Lazy.t;;
 
+val debug: bool ref
+
 val whd : 
   ?delta:int -> subst:NCic.substitution -> 
   NCic.context -> NCic.term -> 
@@ -41,9 +43,14 @@ type machine = int * environment_item list * NCic.term * stack_item list
 val reduce_machine : 
      delta:int -> ?subst:NCic.substitution -> NCic.context -> machine -> 
       machine * bool
-val from_stack : stack_item -> machine
+val from_stack : delta:int -> stack_item -> machine
 val unwind : machine -> NCic.term
 
 val split_prods:
  subst:NCic.substitution -> NCic.context -> int -> NCic.term ->
   NCic.context * NCic.term
+
+(* to be used outside the kernel *)
+val alpha_eq:
+ NCic.metasenv -> NCic.substitution ->
+  NCic.context -> NCic.term -> NCic.term -> bool