(* Properties on lazy equivalence for local environments ********************)
-lemma lleq_fpbu_trans: â\88\80h,g,F,K1,K2,T. K1 â\8b\95[T, 0] K2 →
+lemma lleq_fpbu_trans: â\88\80h,g,F,K1,K2,T. K1 â\89¡[T, 0] K2 →
∀G,L2,U. ⦃F, K2, T⦄ ≻[h, g] ⦃G, L2, U⦄ →
- â\88\83â\88\83L1. â¦\83F, K1, Tâ¦\84 â\89»[h, g] â¦\83G, L1, Uâ¦\84 & L1 â\8b\95[U, 0] L2.
+ â\88\83â\88\83L1. â¦\83F, K1, Tâ¦\84 â\89»[h, g] â¦\83G, L1, Uâ¦\84 & L1 â\89¡[U, 0] L2.
#h #g #F #K1 #K2 #T #HT #G #L2 #U * -G -L2 -U
[ #G #L2 #U #H2 elim (lleq_fqup_trans … H2 … HT) -K2
/3 width=3 by fpbu_fqup, ex2_intro/