X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcpxs_theq_vector.ma;h=529c90c254a455b9bb272e4681b065d24aeedff1;hb=397413c4196f84c81d61ba7dd79b54ab1c428ebb;hp=a1bf1e5b8bb1b19158a9886eba13f3d3b1ce8612;hpb=24ba1bb3f67505d3e384747ff90d26d3996bd3f5;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_theq_vector.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_theq_vector.ma
index a1bf1e5b8..529c90c25 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_theq_vector.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/cpxs_theq_vector.ma
@@ -45,7 +45,7 @@ qed-.
 
 (* Basic_2A1: was: cpxs_fwd_delta_vector *)
 lemma cpxs_fwd_delta_drops_vector: ∀h,o,I,G,L,K,V1,i. ⬇*[i] L ≘ K.ⓑ{I}V1 →
-                                   ∀V2. ⬆*[⫯i] V1 ≘ V2 →
+                                   ∀V2. ⬆*[↑i] V1 ≘ V2 →
                                    ∀Vs,U. ⦃G, L⦄ ⊢ ⒶVs.#i ⬈*[h] U →
                                    ⒶVs.#i ⩳[h, o] U ∨ ⦃G, L⦄ ⊢ ⒶVs.V2 ⬈*[h] U.
 #h #o #I #G #L #K #V1 #i #HLK #V2 #HV12 #Vs elim Vs -Vs /2 width=5 by cpxs_fwd_delta_drops/