Goal:
    A : Type  R : ReflectEq A
  ============================
   (forall x y : A, false = (x == y) -> x <> y)


DEBUG:Going to execute:
simplify ?
Level 2: Backtrace:

The first hypothesis in the goal is not an equality.
Level 2: Backtrace:

The first hypothesis in the goal is not an equality.