X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fmultiple%2Fllor_ldrop.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fmultiple%2Fllor_ldrop.ma;h=afc0924d9d4c3405c6b955dc00b8cfd12277c9f6;hb=c88fe30a6900da730a684d7df6522407a388cd67;hp=f8458d3c63a4a7e39e3361e766032e25e21a6db3;hpb=3f37332f773685e992ae666cada75d5efaecd4bb;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/multiple/llor_ldrop.ma b/matita/matita/contribs/lambdadelta/basic_2/multiple/llor_ldrop.ma
index f8458d3c6..afc0924d9 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/multiple/llor_ldrop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/multiple/llor_ldrop.ma
@@ -19,7 +19,7 @@ include "basic_2/multiple/llor.ma".
 
 (* Advanced properties ******************************************************)
 
-lemma llor_skip: ∀L1,L2,U,d. |L1| ≤ |L2| → yinj (|L1|) ≤ d → L1 ⩖[U, d] L2 ≡ L1.
+lemma llor_skip: ∀L1,L2,U,d. |L1| = |L2| → yinj (|L1|) ≤ d → L1 ⩖[U, d] L2 ≡ L1.
 #L1 #L2 #U #d #HL12 #Hd @and3_intro // -HL12
 #I1 #I2 #I #K1 #K2 #K #W1 #W2 #W #i #HLK1 #_ #HLK -L2 -K2
 lapply (ldrop_mono … HLK … HLK1) -HLK #H destruct
@@ -27,4 +27,4 @@ lapply (ldrop_fwd_length_lt2 … HLK1) -K1
 /5 width=3 by ylt_yle_trans, ylt_inj, or3_intro0, and3_intro/
 qed.
 
-axiom llor_total: ∀L1,L2,T,d. |L1| ≤ |L2| → ∃L. L1 ⩖[T, d] L2 ≡ L.
+axiom llor_total: ∀L1,L2,T,d. |L1| = |L2| → ∃L. L1 ⩖[T, d] L2 ≡ L.