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[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / reduction / lpr.ma
index 04d5d1a294f09cd6c0f75334945950372e0d6abe..afab7f20fb7483115fc59cc2dd17bb8c40211881 100644 (file)
@@ -12,7 +12,8 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "basic_2/unfold/lpqs.ma".
+include "basic_2/notation/relations/predsn_2.ma".
+include "basic_2/grammar/lpx_sn.ma".
 include "basic_2/reduction/cpr.ma".
 
 (* SN PARALLEL REDUCTION FOR LOCAL ENVIRONMENTS *****************************)
@@ -54,13 +55,6 @@ lemma lpr_append: ∀K1,K2. K1 ⊢ ➡ K2 → ∀L1,L2. L1 ⊢ ➡ L2 →
                   L1 @@ K1 ⊢ ➡ L2 @@ K2.
 /3 width=1 by lpx_sn_append, cpr_append/ qed.
 
-lemma lpqs_lpr: ∀L1,L2. L1 ⊢ ➤* L2 → L1 ⊢ ➡ L2.
-#L1 #L2 #H elim H -L1 -L2 // /3 width=1/
-qed.
-
-lemma lpss_lpr: ∀L1,L2. L1 ⊢ ▶* L2 → L1 ⊢ ➡ L2.
-/3 width=1/ qed.
-
 (* Basic forward lemmas *****************************************************)
 
 lemma lpr_fwd_length: ∀L1,L2. L1 ⊢ ➡ L2 → |L1| = |L2|.