(* Properties with degree-based equivalence on referred entries *************)
-lemma aaa_tdeq_conf_fldeq: â\88\80h,o,G,L1,T1,A. â¦\83G, L1â¦\84 â\8a¢ T1 â\81\9d A â\86\92 â\88\80T2. T1 â\89¡[h, o] T2 →
- â\88\80L2. L1 â\89¡[h, o, T1] L2 → ⦃G, L2⦄ ⊢ T2 ⁝ A.
+lemma aaa_tdeq_conf_fldeq: â\88\80h,o,G,L1,T1,A. â¦\83G, L1â¦\84 â\8a¢ T1 â\81\9d A â\86\92 â\88\80T2. T1 â\89\9b[h, o] T2 →
+ â\88\80L2. L1 â\89\9b[h, o, T1] L2 → ⦃G, L2⦄ ⊢ T2 ⁝ A.
#h #o #G #L1 #T1 #A #H elim H -G -L1 -T1 -A
[ #G #L1 #s1 #X #H1 elim (tdeq_inv_sort1 … H1) -H1 //
| #I #G #L1 #V1 #B #_ #IH #X #H1 >(tdeq_inv_lref1 … H1) -H1