Goal:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None ∧ v = d)


DEBUG:Going to execute:
fun => <coq-core.plugins.ltac::split@0>

Goals:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None)

    A : Type  d : A  v : A  H : d = v
  ============================
   (v = d)


DEBUG:Going to execute:
do_ccl

Goals:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None)

    A : Type  d : A  v : A  H : d = v
  ============================
   (v = d)


DEBUG:Going to execute:
try do_atom; repeat (do_intro; try do_atom); try arith_congr;
            (solve [ split; do_ccl ])

Goals:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None)

    A : Type  d : A  v : A  H : d = v
  ============================
   (v = d)


DEBUG:Going to execute:
try do_atom; repeat (do_intro; try do_atom); try arith_congr;
            (solve [ split; do_ccl ])

Goals:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None)

    A : Type  d : A  v : A  H : d = v
  ============================
   (v = d)


DEBUG:Going to execute:
try do_atom; repeat (do_intro; try do_atom); try arith_congr

Goals:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None)

    A : Type  d : A  v : A  H : d = v
  ============================
   (v = d)


DEBUG:Going to execute:
try do_atom; repeat (do_intro; try do_atom)

Goals:
    A : Type  d : A  v : A  H : d = v
  ============================
   (None = None)

    A : Type  d : A  v : A  H : d = v
  ============================
   (v = d)


DEBUG:Going to execute:
try do_atom