\forall (t: T).(or (ex_3 B T T (\lambda (b: B).(\lambda (w: T).(\lambda (u:
T).(eq T t (THead (Bind b) w u)))))) (\forall (b: B).(\forall (w: T).(\forall
(u: T).((eq T t (THead (Bind b) w u)) \to (\forall (P: Prop).P))))))
\forall (t: T).(or (ex_3 B T T (\lambda (b: B).(\lambda (w: T).(\lambda (u:
T).(eq T t (THead (Bind b) w u)))))) (\forall (b: B).(\forall (w: T).(\forall
(u: T).((eq T t (THead (Bind b) w u)) \to (\forall (P: Prop).P))))))