1) variables occurring only in proofs anre not relocated

[helm.git] / components / tactics / paramodulation / inference.ml

diff --git a/components/tactics/paramodulation/inference.ml b/components/tactics/paramodulation/inference.ml
index ab27f8a314b13e4b75cce13afbd272a7f9440475..36e9f99a64a710785976c200979d0764620bc849 100644 (file)
--- a/components/tactics/paramodulation/inference.ml
+++ b/components/tactics/paramodulation/inference.ml
@@ -139,7 +139,10 @@ let profiler3 = HExtlib.profile "P/Inference.unif_simple[resolve_meta]"
 let profiler4 = HExtlib.profile "P/Inference.unif_simple[filter]"
 
 let unification_aux b metasenv1 metasenv2 context t1 t2 ugraph =
-  let metasenv = metasenv1 @ metasenv2 in
+  let metasenv = 
+    HExtlib.list_uniq (List.sort Pervasives.compare (metasenv1 @ metasenv2))
+    (*metasenv1 @ metasenv2*)
+  in
   let subst, menv, ug =
     if not (is_simple_term t1) || not (is_simple_term t2) then (
       debug_print