-(* Problem 2: several disambiguation errors *)
-
-(* Same object of problem 1 with "nut", "net", "nit" replaced by "nat"
- *)
-
-theorem nat_dec_real:
- \forall (n1: nat).(\forall (n2: nat).(or (eq nat n1 n2) ((eq nat n1 n2) \to (\forall (P: Prop).P))))
-\def
- \lambda (n1: nat).(nat_ind (\lambda (n: nat).(\forall (n2: nat).(or (eq nat n n2) ((eq nat n n2) \to (\forall (P: Prop).P))))) (\lambda (n2: nat).(nat_ind (\lambda (n: nat).(or (eq nat O n) ((eq nat O n) \to (\forall (P: Prop).P)))) (or_introl (eq nat O O) ((eq nat O O) \to (\forall (P: Prop).P)) (refl_equal nat O)) (\lambda (n: nat).(\lambda (_: (or (eq nat O n) ((eq nat O n) \to (\forall (P: Prop).P)))).(or_intror (eq nat O (S n)) ((eq nat O (S n)) \to (\forall (P: Prop).P)) (\lambda (H0: (eq nat O (S n))).(\lambda (P: Prop).(let H1 \def (eq_ind nat O (\lambda (ee: nat).(match ee return Prop with [O \Rightarrow True | (S _) \Rightarrow False])) I (S n) H0) in (False_ind P H1))))))) n2)) (\lambda (n: nat).(\lambda (H: ((\forall (n2: nat).(or (eq nat n n2) ((eq nat n n2) \to (\forall (P: Prop).P)))))).(\lambda (n2: nat).(nat_ind (\lambda (n0: nat).(or (eq nat (S n) n0) ((eq nat (S n) n0) \to (\forall (P: Prop).P)))) (or_intror (eq nat (S n) O) ((eq nat (S n) O) \to (\forall (P: Prop).P)) (\lambda (H0: (eq nat (S n) O)).(\lambda (P: Prop).(let H1 \def (eq_ind nat (S n) (\lambda (ee: nat).(match ee return Prop with [O \Rightarrow False | (S _) \Rightarrow True])) I O H0) in (False_ind P H1))))) (\lambda (n0: nat).(\lambda (H0: (or (eq nat (S n) n0) ((eq nat (S n) n0) \to (\forall (P: Prop).P)))).(or_ind (eq nat n n0) ((eq nat n n0) \to (\forall (P: Prop).P)) (or (eq nat (S n) (S n0)) ((eq nat (S n) (S n0)) \to (\forall (P: Prop).P))) (\lambda (H1: (eq nat n n0)).(let H2 \def (eq_ind_r nat n0 (\lambda (n0: nat).(or (eq nat (S n) n0) ((eq nat (S n) n0) \to (\forall (P: Prop).P)))) H0 n H1) in (eq_ind nat n (\lambda (n3: nat).(or (eq nat (S n) (S n3)) ((eq nat (S n) (S n3)) \to (\forall (P: Prop).P)))) (or_introl (eq nat (S n) (S n)) ((eq nat (S n) (S n)) \to (\forall (P: Prop).P)) (refl_equal nat (S n))) n0 H1))) (\lambda (H1: (((eq nat n n0) \to (\forall (P: Prop).P)))).(or_intror (eq nat (S n) (S n0)) ((eq nat (S n) (S n0)) \to (\forall (P: Prop).P)) (\lambda (H2: (eq nat (S n) (S n0))).(\lambda (P: Prop).(let H3 \def (f_equal nat nat (\lambda (e: nat).(match (e:nat) return nat with [O \Rightarrow n | (S n) \Rightarrow n])) (S n) (S n0) H2) in (let H4 \def (eq_ind_r nat n0 (\lambda (n0: nat).((eq nat n n0) \to (\forall (P: Prop).P))) H1 n H3) in (let H5 \def (eq_ind_r nat n0 (\lambda (n0: nat).(or (eq nat (S n) n0) ((eq nat (S n) n0) \to (\forall (P: Prop).P)))) H0 n H3) in (H4 (refl_equal nat n) P)))))))) (H n0)))) n2)))) n1).
+inductive tau1 (g:G) (c:C) (t1:T): T \to Prop \def
+| tau1_tau0: \forall (t2: T).((tau0 g c t1 t2) \to (tau1 g c t1 t2))
+| tau1_sing: \forall (t: T).((tau1 g c t1 t) \to (\forall (t2: T).((tau0 g c
+t t2) \to (tau1 g c t1 t2)))).