First version of refine for MutCase, still largely incomplete.

[helm.git] / helm / ocaml / cic_unification / cicUnification.ml

diff --git a/helm/ocaml/cic_unification/cicUnification.ml b/helm/ocaml/cic_unification/cicUnification.ml
index dd33f3e442258c4c9ccb1b328b3288b367c8e568..164a9cdce3bf88b9cb377eecd079bae24dcc04a3 100644 (file)
--- a/helm/ocaml/cic_unification/cicUnification.ml
+++ b/helm/ocaml/cic_unification/cicUnification.ml
@@ -33,7 +33,8 @@ exception OpenTerm;;
 
 (* the delift function takes in input an ordered list of optional terms       *)
 (* [t1,...,tn] and a term t, and substitutes every tk = Some (rel(nk)) with   *)
-(* rel(k). Typically, the list of optional terms is the explicit substitution *)(* that is applied to a metavariable occurrence and the result of the delift  *)
+(* rel(k). Typically, the list of optional terms is the explicit substitution *)
+(* that is applied to a metavariable occurrence and the result of the delift  *)
 (* function is a term the implicit variable can be substituted with to make   *)
 (* the term [t] unifiable with the metavariable occurrence.                   *)
 (* In general, the problem is undecidable if we consider equivalence in place *)
@@ -498,6 +499,7 @@ let unwind metasenv subst unwinded t =
 (*  during the unwinding the eta-expansions are undone.                 *)
 
 let apply_subst_reducing subst meta_to_reduce t =
+ (* andrea: che senso ha questo ref ?? *)
  let unwinded = ref subst in
  let rec um_aux =
   let module C = Cic in