-lemma cpr_lift: â\88\80L,K,d,e. â\86\93[d, e] L ≡ K →
- â\88\80T1,U1. â\86\91[d, e] T1 â\89¡ U1 â\86\92 â\88\80T2,U2. â\86\91[d, e] T2 ≡ U2 →
- K â\8a¢ T1 â\87\92 T2 â\86\92 L â\8a¢ U1 â\87\92 U2.
+lemma cpr_lift: â\88\80L,K,d,e. â\87©[d, e] L ≡ K →
+ â\88\80T1,U1. â\87§[d, e] T1 â\89¡ U1 â\86\92 â\88\80T2,U2. â\87§[d, e] T2 ≡ U2 →
+ K â\8a¢ T1 â\9e¡ T2 â\86\92 L â\8a¢ U1 â\9e¡ U2.