- xoa: bug fix and improvement

[helm.git] / matita / matita / lib / lambda-delta / reduction / lpr_defs.ma

diff --git a/matita/matita/lib/lambda-delta/reduction/lpr_defs.ma b/matita/matita/lib/lambda-delta/reduction/lpr_defs.ma
index 2411191084e4856e99c3704b8ecf3bcc2f6b5fa6..8adec5ca5d1f4fdf6dd5ef0a7fdf4703053ad8db 100644 (file)
--- a/matita/matita/lib/lambda-delta/reduction/lpr_defs.ma
+++ b/matita/matita/lib/lambda-delta/reduction/lpr_defs.ma
@@ -30,9 +30,9 @@ interpretation
 
 lemma lpr_inv_item1_aux: ∀L1,L2. L1 ⇒ L2 → ∀K1,I,V1. L1 = K1. 𝕓{I} V1 →
                          ∃∃K2,V2. K1 ⇒ K2 & V1 ⇒ V2 & L2 = K2. 𝕓{I} V2.
-#L1 #L2 #H elim H -H L1 L2
+#L1 #L2 * -L1 L2
 [ #K1 #I #V1 #H destruct
-| #K1 #K2 #I #V1 #V2 #HK12 #HV12 #_ #L #J #W #H destruct - K1 I V1 /2 width=5/
+| #K1 #K2 #I #V1 #V2 #HK12 #HV12 #L #J #W #H destruct - K1 I V1 /2 width=5/
 ]
 qed.