cicDischarge: new module for discharging the explicit variables occurring in a

[helm.git] / helm / software / components / ng_kernel / nCic.ml

diff --git a/helm/software/components/ng_kernel/nCic.ml b/helm/software/components/ng_kernel/nCic.ml
index 2be6a73882bae4249e68f8845e510f5b5680385e..a9cc9a671f39161afc8500eec4f012d2769fc589 100644 (file)
--- a/helm/software/components/ng_kernel/nCic.ml
+++ b/helm/software/components/ng_kernel/nCic.ml
@@ -13,14 +13,18 @@
 
 (********************************* TERMS ************************************)
 
-type sort = Prop | Type of int | CProp
+type universe = (bool * NUri.uri) list 
+  (* Max of non-empty list of named universes, or their successor (when true) *)
+
+type sort = Prop | Type of universe
 
 type implicit_annotation = [ `Closed | `Type | `Hole | `Term ]
 
 type lc_kind = Irl of int | Ctx of term list
 
 and local_context = int * lc_kind             (* shift (0 -> no shift), 
-                                                 subst (None means id) *) 
+                                                 subst (Irl n means id of
+                                                length n) *) 
 and term =
  | Rel      of int                            (* DeBruijn index, 1 based    *)
  | Meta     of int * local_context