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diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_lsubd.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_lsubd.ma
index 86007b1f5..7f9e72946 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_lsubd.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_lsubd.ma
@@ -12,13 +12,13 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "basic_2/static/lsubd.ma".
+include "static_2/static/lsubd.ma".
 include "basic_2/dynamic/lsubsv.ma".
 
 (* LOCAL ENVIRONMENT REFINEMENT FOR STRATIFIED NATIVE VALIDITY **************)
 
 (* Forward lemmas on lenv refinement for degree assignment ******************)
 
-lemma lsubsv_fwd_lsubd: ∀h,g,G,L1,L2. G ⊢ L1 ¡⫃[h, g] L2 → G ⊢ L1 ▪⫃[h, g] L2.
-#h #g #G #L1 #L2 #H elim H -L1 -L2 // /2 width=1/ /2 width=3/
+lemma lsubsv_fwd_lsubd: ∀h,o,G,L1,L2. G ⊢ L1 ⫃¡[h, o] L2 → G ⊢ L1 ⫃▪[h, o] L2.
+#h #o #G #L1 #L2 #H elim H -L1 -L2 /2 width=3 by lsubd_pair, lsubd_beta/
 qed-.