Goal:
    A : Type  R : ReflectEq A  x : A  y : A  Heq_anonymous : true = (x == y)
  ============================
   (x = y)


DEBUG:Going to execute:
auto
DEBUG LTAC Evaluated term: (x = y)
DEBUG LTAC Evaluated term: Prop
Level 3: type of T
 has value 
Prop