X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Fcomputation%2Flsubc_lsuba.ma;h=aad454f626941fb4829208c76542f9ec4633bb52;hb=a04bfe6d381b281db15e8b432f6f221576aad439;hp=e50551086c32a92f094251cddb424e1d3e757350;hpb=a8c166f1e1baeeae04553058bd179420ada8bbe7;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_lsuba.ma b/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_lsuba.ma
index e50551086..aad454f62 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_lsuba.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/computation/lsubc_lsuba.ma
@@ -20,7 +20,7 @@ include "basic_2/computation/acp_aaa.ma".
 (* properties concerning lenv refinement for atomic arity assignment ********)
 
 lemma lsubc_lsuba: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
-                   ∀L1,L2. L1 ÷⊑ L2 → L1 [RP] ⊑ L2.
+                   ∀L1,L2. L1 ⁝⊑ L2 → L1 ⊑[RP] L2.
 #RR #RS #RP #H1RP #H2RP #L1 #L2 #H elim H -L1 -L2
 // /2 width=1/ /3 width=4/
 qed.