X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FgTopLevel%2FproofEngineTypes.ml;h=f5e75fc47e817acc192fffd24e003839c70f4049;hb=b1fb6b8e1767d775bc452303629e95941d142bea;hp=38492fce9b551641fa71dc5f378dbf2992918a5f;hpb=76cb30ecd0159512548aee0ba7085ab17c6fd5bd;p=helm.git

diff --git a/helm/gTopLevel/proofEngineTypes.ml b/helm/gTopLevel/proofEngineTypes.ml
index 38492fce9..f5e75fc47 100644
--- a/helm/gTopLevel/proofEngineTypes.ml
+++ b/helm/gTopLevel/proofEngineTypes.ml
@@ -24,19 +24,17 @@
  *)
 
   (**
-    current proof (proof uri * metas * (in)complete proof * term to be prooved),
-    possibly None
+    current proof (proof uri * metas * (in)complete proof * term to be prooved)
   *)
-type proof = (UriManager.uri * Cic.metasenv * Cic.term * Cic.term) option
+type proof = UriManager.uri * Cic.metasenv * Cic.term * Cic.term
   (** current goal, integer index *)
-type goal = int option
-  (** current status: (proof, goal) pair *)
-type status = proof * goal
+type goal = int
   (**
     a tactic: make a transition from one status to another one or, usually,
     raise a "Fail" (@see Fail) exception in case of failure
   *)
-type tactic = status:status -> status
+  (** an unfinished proof with the optional current goal *)
+type tactic = status:(proof * goal) -> proof * goal list
 
   (** tactic failure *)
 exception Fail of string