-theorem liftsv_trans: â\88\80f1,T1s,Ts. â¬\86*[f1] T1s â\89\98 Ts â\86\92 â\88\80T2s,f2. â¬\86*[f2] Ts ≘ T2s →
- â\88\80f. f2 â\8a\9a f1 â\89\98 f â\86\92 â¬\86*[f] T1s ≘ T2s.
+theorem liftsv_trans: â\88\80f1,T1s,Ts. â\87§*[f1] T1s â\89\98 Ts â\86\92 â\88\80T2s,f2. â\87§*[f2] Ts ≘ T2s →
+ â\88\80f. f2 â\8a\9a f1 â\89\98 f â\86\92 â\87§*[f] T1s ≘ T2s.