fixed auto invocation

diff --git a/helm/software/matita/library/decidable_kit/decidable.ma b/helm/software/matita/library/decidable_kit/decidable.ma
index c1a8d5816db6065bf294f0c329fa41935b667489..3478ef628e44c5871298100c970e3f36c9b05370 100644 (file)
--- a/helm/software/matita/library/decidable_kit/decidable.ma
+++ b/helm/software/matita/library/decidable_kit/decidable.ma
@@ -137,7 +137,7 @@ qed.
 
 lemma leb_eqb : ∀n,m. orb (eqb n m) (leb (S n) m) = leb n m.
 intros (n m); apply bool_to_eq; split; intros (H);
-[1:cases (b2pT ? ? (orbP ? ?) H); [2: autobatch] 
+[1:cases (b2pT ? ? (orbP ? ?) H); [2: autobatch type] 
    rewrite > (eqb_true_to_eq ? ? H1); autobatch
 |2:cases (b2pT ? ? (lebP ? ?) H); 
    [ elim n; [reflexivity|assumption]