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-(* A Wiedijk-Cruz-Filipe style tactic for solving implicit arguments *)
-
-(* Declare a term expression with a hole *)
-Parameter quo : nat -> forall n:nat, n<>0 -> nat.
-Notation "x / y" := (quo x y _) : nat_scope.
-
-(* Declare the tactic for resolving implicit arguments still
- unresolved after type-checking; it must complete the subgoal to
- succeed *)
-Declare Implicit Tactic assumption.
-
-Goal forall n d, d<>0 -> { q:nat & { r:nat | d * q + r = n }}.
-intros.
-(* Here, assumption is used to solve the implicit argument of quo *)
-exists (n / d).
-