-let rec C_rect (P: (C \to Type[0])) (f: (\forall (n: nat).(P (CSort n))))
-(f0: (\forall (c: C).((P c) \to (\forall (k: K).(\forall (t: T).(P (CHead c k
-t))))))) (c: C) on c: P c \def match c with [(CSort n) \Rightarrow (f n) |
-(CHead c0 k t) \Rightarrow (f0 c0 ((C_rect P f f0) c0) k t)].
+implied let rec C_rect (P: (C \to Type[0])) (f: (\forall (n: nat).(P (CSort
+n)))) (f0: (\forall (c: C).((P c) \to (\forall (k: K).(\forall (t: T).(P
+(CHead c k t))))))) (c: C) on c: P c \def match c with [(CSort n) \Rightarrow
+(f n) | (CHead c0 k t) \Rightarrow (f0 c0 ((C_rect P f f0) c0) k t)].