-inductive fpb (h) (G1) (L1) (T1): relation3 genv lenv term ≝
-| fpb_fqu: â\88\80G2,L2,T2. â¦\83G1,L1,T1â¦\84 â¬\82 â¦\83G2,L2,T2â¦\84 â\86\92 fpb h G1 L1 T1 G2 L2 T2
-| fpb_cpx: â\88\80T2. â¦\83G1,L1â¦\84 â\8a¢ T1 â¬\88[h] T2 â\86\92 (T1 â\89\9b T2 â\86\92 â\8a¥) â\86\92 fpb h G1 L1 T1 G1 L1 T2
-| fpb_lpx: â\88\80L2. â¦\83G1,L1â¦\84 â\8a¢ â¬\88[h] L2 â\86\92 (L1 â\89\9b[T1] L2 â\86\92 â\8a¥) â\86\92 fpb h G1 L1 T1 G1 L2 T1
+inductive fpb (G1) (L1) (T1): relation3 genv lenv term ≝
+| fpb_fqu: â\88\80G2,L2,T2. â\9dªG1,L1,T1â\9d« â¬\82 â\9dªG2,L2,T2â\9d« â\86\92 fpb G1 L1 T1 G2 L2 T2
+| fpb_cpx: â\88\80T2. â\9dªG1,L1â\9d« â\8a¢ T1 â¬\88 T2 â\86\92 (T1 â\89\85 T2 â\86\92 â\8a¥) â\86\92 fpb G1 L1 T1 G1 L1 T2
+| fpb_lpx: â\88\80L2. â\9dªG1,L1â\9d« â\8a¢ â¬\88 L2 â\86\92 (L1 â\89\85[T1] L2 â\86\92 â\8a¥) â\86\92 fpb G1 L1 T1 G1 L2 T1