Goal:
  
  A : Type
  B : Type
  R : nat → A → B → Type
  n : nat
  b0 : All2i R n [] []
  b'' : nat
  b''0 : list A
  b' : list B
  ============================
   (∀ b : All2i R b'' b''0 b',
      {|
        pr1 := {| pr1 := n; pr2 := {| pr1 := []; pr2 := [] |} |}; pr2 := b0
      |} =
      {|
        pr1 := {| pr1 := b''; pr2 := {| pr1 := b''0; pr2 := b' |} |};
        pr2 := b
      |}
      → ∀ (H := CoreTactics.block) (e : NoConfusionHom_All2i A B R n [] []
                                          All2i_nil b0),
          let H0 := CoreTactics.block in
          noConfusionHom_All2i_obligation_2 A B R n [] [] All2i_nil b0
            (noConfusionHom_All2i_obligation_1 A B R n [] [] All2i_nil b0 e) =
          e)


DEBUG:Going to execute:
intros p