-lemma aaa_inv_lifts: â\88\80G,L2,T2,A. â¦\83G,L2â¦\84 â\8a¢ T2 â\81\9d A â\86\92 â\88\80b,f,L1. â¬\87*[b,f] L2 ≘ L1 →
- â\88\80T1. â¬\86*[f] T1 â\89\98 T2 â\86\92 â¦\83G,L1â¦\84 ⊢ T1 ⁝ A.
+lemma aaa_inv_lifts: â\88\80G,L2,T2,A. â\9d¨G,L2â\9d© â\8a¢ T2 â\81\9d A â\86\92 â\88\80b,f,L1. â\87©*[b,f] L2 ≘ L1 →
+ â\88\80T1. â\87§*[f] T1 â\89\98 T2 â\86\92 â\9d¨G,L1â\9d© ⊢ T1 ⁝ A.