(* Properties on lazy equivalence on closures *******************************)
lemma fleq_fpbs: ∀h,g,G1,G2,L1,L2,T1,T2.
- â¦\83G1, L1, T1â¦\84 â\8b\95[0] ⦃G2, L2, T2⦄ → ⦃G1, L1, T1⦄ ≥[h, g] ⦃G2, L2, T2⦄.
+ â¦\83G1, L1, T1â¦\84 â\89¡[0] ⦃G2, L2, T2⦄ → ⦃G1, L1, T1⦄ ≥[h, g] ⦃G2, L2, T2⦄.
#h #g #G1 #G2 #L1 #L2 #T1 #T2 * /2 width=1 by lleq_fpbs/
qed.