(* Properties concerning generic relocation *********************************)
-lemma aaa_lifts: â\88\80G,L1,L2,T2,A,s,des. â\87©*[s, des] L2 â\89¡ L1 â\86\92 â\88\80T1. â\87§*[des] T1 ≡ T2 →
+lemma aaa_lifts: â\88\80G,L1,L2,T2,A,s,des. â¬\87*[s, des] L2 â\89¡ L1 â\86\92 â\88\80T1. â¬\86*[des] T1 ≡ T2 →
⦃G, L1⦄ ⊢ T1 ⁝ A → ⦃G, L2⦄ ⊢ T2 ⁝ A.
#G #L1 #L2 #T2 #A #s #des #H elim H -L1 -L2 -des
[ #L #T1 #H #HT1