Goal:
  
  A : Type
  B : Type
  P : B → A → A → Type
  b0 : B
  bs : list B
  hd : A
  tl : list A
  tl' : list A
  a : OnOne2All P bs tl tl'
  b : B
  bs0 : list B
  hd0 : A
  tl0 : list A
  tl'0 : list A
  b1 : OnOne2All P bs0 tl0 tl'0
  ============================
   (noConfusion_OnOne2All_obligation_2 A B P
      {|
        pr1 :=
          {|
            pr1 := b0 :: bs; pr2 := {| pr1 := hd :: tl; pr2 := hd :: tl' |}
          |};
        pr2 := OnOne2All_tl P b0 bs hd tl tl' a
      |}
      {|
        pr1 :=
          {|
            pr1 :=
              pr1
                {|
                  pr1 := b0;
                  pr2 :=
                    {|
                      pr1 := bs;
                      pr2 :=
                        {|
                          pr1 := hd;
                          pr2 :=
                            {|
                              pr1 := tl; pr2 := {| pr1 := tl'; pr2 := a |}
                            |}
                        |}
                    |}
                |}
              :: pr1
                   (pr2
                      {|
                        pr1 := b0;
                        pr2 :=
                          {|
                            pr1 := bs;
                            pr2 :=
                              {|
                                pr1 := hd;
                                pr2 :=
                                  {|
                                    pr1 := tl;
                                    pr2 := {| pr1 := tl'; pr2 := a |}
                                  |}
                              |}
                          |}
                      |});
            pr2 :=
              {|
                pr1 :=
                  pr1
                    (pr2
                       (pr2
                          {|
                            pr1 := b0;
                            pr2 :=
                              {|
                                pr1 := bs;
                                pr2 :=
                                  {|
                                    pr1 := hd;
                                    pr2 :=
                                      {|
                                        pr1 := tl;
                                        pr2 := {| pr1 := tl'; pr2 := a |}
                                      |}
                                  |}
                              |}
                          |}))
                  :: pr1
                       (pr2
                          (pr2
                             (pr2
                                {|
                                  pr1 := b0;
                                  pr2 :=
                                    {|
                                      pr1 := bs;
                                      pr2 :=
                                        {|
                                          pr1 := hd;
                                          pr2 :=
                                            {|
                                              pr1 := tl;
                                              pr2 :=
                                                {| pr1 := tl'; pr2 := a |}
                                            |}
                                        |}
                                    |}
                                |})));
                pr2 :=
                  pr1
                    (pr2
                       (pr2
                          {|
                            pr1 := b0;
                            pr2 :=
                              {|
                                pr1 := bs;
                                pr2 :=
                                  {|
                                    pr1 := hd;
                                    pr2 :=
                                      {|
                                        pr1 := tl;
                                        pr2 := {| pr1 := tl'; pr2 := a |}
                                      |}
                                  |}
                              |}
                          |}))
                  :: pr1
                       (pr2
                          (pr2
                             (pr2
                                (pr2
                                   {|
                                     pr1 := b0;
                                     pr2 :=
                                       {|
                                         pr1 := bs;
                                         pr2 :=
                                           {|
                                             pr1 := hd;
                                             pr2 :=
                                               {|
                                                 pr1 := tl;
                                                 pr2 :=
                                                 {| pr1 := tl'; pr2 := a |}
                                               |}
                                           |}
                                       |}
                                   |}))))
              |}
          |};
        pr2 :=
          OnOne2All_tl P
            (pr1
               {|
                 pr1 := b0;
                 pr2 :=
                   {|
                     pr1 := bs;
                     pr2 :=
                       {|
                         pr1 := hd;
                         pr2 :=
                           {| pr1 := tl; pr2 := {| pr1 := tl'; pr2 := a |} |}
                       |}
                   |}
               |})
            (pr1
               (pr2
                  {|
                    pr1 := b0;
                    pr2 :=
                      {|
                        pr1 := bs;
                        pr2 :=
                          {|
                            pr1 := hd;
                            pr2 :=
                              {|
                                pr1 := tl; pr2 := {| pr1 := tl'; pr2 := a |}
                              |}
                          |}
                      |}
                  |}))
            (pr1
               (pr2
                  (pr2
                     {|
                       pr1 := b0;
                       pr2 :=
                         {|
                           pr1 := bs;
                           pr2 :=
                             {|
                               pr1 := hd;
                               pr2 :=
                                 {|
                                   pr1 := tl;
                                   pr2 := {| pr1 := tl'; pr2 := a |}
                                 |}
                             |}
                         |}
                     |})))
            (pr1
               (pr2
                  (pr2
                     (pr2
                        {|
                          pr1 := b0;
                          pr2 :=
                            {|
                              pr1 := bs;
                              pr2 :=
                                {|
                                  pr1 := hd;
                                  pr2 :=
                                    {|
                                      pr1 := tl;
                                      pr2 := {| pr1 := tl'; pr2 := a |}
                                    |}
                                |}
                            |}
                        |}))))
            (pr1
               (pr2
                  (pr2
                     (pr2
                        (pr2
                           {|
                             pr1 := b0;
                             pr2 :=
                               {|
                                 pr1 := bs;
                                 pr2 :=
                                   {|
                                     pr1 := hd;
                                     pr2 :=
                                       {|
                                         pr1 := tl;
                                         pr2 := {| pr1 := tl'; pr2 := a |}
                                       |}
                                   |}
                               |}
                           |})))))
            (pr2
               (pr2
                  (pr2
                     (pr2
                        (pr2
                           {|
                             pr1 := b0;
                             pr2 :=
                               {|
                                 pr1 := bs;
                                 pr2 :=
                                   {|
                                     pr1 := hd;
                                     pr2 :=
                                       {|
                                         pr1 := tl;
                                         pr2 := {| pr1 := tl'; pr2 := a |}
                                       |}
                                   |}
                               |}
                           |})))))
      |}
      (noConfusion_OnOne2All_obligation_1 A B P
         {|
           pr1 :=
             {|
               pr1 := b0 :: bs;
               pr2 := {| pr1 := hd :: tl; pr2 := hd :: tl' |}
             |};
           pr2 := OnOne2All_tl P b0 bs hd tl tl' a
         |}
         {|
           pr1 :=
             {|
               pr1 :=
                 pr1
                   {|
                     pr1 := b0;
                     pr2 :=
                       {|
                         pr1 := bs;
                         pr2 :=
                           {|
                             pr1 := hd;
                             pr2 :=
                               {|
                                 pr1 := tl; pr2 := {| pr1 := tl'; pr2 := a |}
                               |}
                           |}
                       |}
                   |}
                 :: pr1
                      (pr2
                         {|
                           pr1 := b0;
                           pr2 :=
                             {|
                               pr1 := bs;
                               pr2 :=
                                 {|
                                   pr1 := hd;
                                   pr2 :=
                                     {|
                                       pr1 := tl;
                                       pr2 := {| pr1 := tl'; pr2 := a |}
                                     |}
                                 |}
                             |}
                         |});
               pr2 :=
                 {|
                   pr1 :=
                     pr1
                       (pr2
                          (pr2
                             {|
                               pr1 := b0;
                               pr2 :=
                                 {|
                                   pr1 := bs;
                                   pr2 :=
                                     {|
                                       pr1 := hd;
                                       pr2 :=
                                         {|
                                           pr1 := tl;
                                           pr2 := {| pr1 := tl'; pr2 := a |}
                                         |}
                                     |}
                                 |}
                             |}))
                     :: pr1
                          (pr2
                             (pr2
                                (pr2
                                   {|
                                     pr1 := b0;
                                     pr2 :=
                                       {|
                                         pr1 := bs;
                                         pr2 :=
                                           {|
                                             pr1 := hd;
                                             pr2 :=
                                               {|
                                                 pr1 := tl;
                                                 pr2 :=
                                                 {| pr1 := tl'; pr2 := a |}
                                               |}
                                           |}
                                       |}
                                   |})));
                   pr2 :=
                     pr1
                       (pr2
                          (pr2
                             {|
                               pr1 := b0;
                               pr2 :=
                                 {|
                                   pr1 := bs;
                                   pr2 :=
                                     {|
                                       pr1 := hd;
                                       pr2 :=
                                         {|
                                           pr1 := tl;
                                           pr2 := {| pr1 := tl'; pr2 := a |}
                                         |}
                                     |}
                                 |}
                             |}))
                     :: pr1
                          (pr2
                             (pr2
                                (pr2
                                   (pr2
                                      {|
                                        pr1 := b0;
                                        pr2 :=
                                          {|
                                            pr1 := bs;
                                            pr2 :=
                                              {|
                                                pr1 := hd;
                                                pr2 :=
                                                 {|
                                                 pr1 := tl;
                                                 pr2 :=
                                                 {| pr1 := tl'; pr2 := a |}
                                                 |}
                                              |}
                                          |}
                                      |}))))
                 |}
             |};
           pr2 :=
             OnOne2All_tl P
               (pr1
                  {|
                    pr1 := b0;
                    pr2 :=
                      {|
                        pr1 := bs;
                        pr2 :=
                          {|
                            pr1 := hd;
                            pr2 :=
                              {|
                                pr1 := tl; pr2 := {| pr1 := tl'; pr2 := a |}
                              |}
                          |}
                      |}
                  |})
               (pr1
                  (pr2
                     {|
                       pr1 := b0;
                       pr2 :=
                         {|
                           pr1 := bs;
                           pr2 :=
                             {|
                               pr1 := hd;
                               pr2 :=
                                 {|
                                   pr1 := tl;
                                   pr2 := {| pr1 := tl'; pr2 := a |}
                                 |}
                             |}
                         |}
                     |}))
               (pr1
                  (pr2
                     (pr2
                        {|
                          pr1 := b0;
                          pr2 :=
                            {|
                              pr1 := bs;
                              pr2 :=
                                {|
                                  pr1 := hd;
                                  pr2 :=
                                    {|
                                      pr1 := tl;
                                      pr2 := {| pr1 := tl'; pr2 := a |}
                                    |}
                                |}
                            |}
                        |})))
               (pr1
                  (pr2
                     (pr2
                        (pr2
                           {|
                             pr1 := b0;
                             pr2 :=
                               {|
                                 pr1 := bs;
                                 pr2 :=
                                   {|
                                     pr1 := hd;
                                     pr2 :=
                                       {|
                                         pr1 := tl;
                                         pr2 := {| pr1 := tl'; pr2 := a |}
                                       |}
                                   |}
                               |}
                           |}))))
               (pr1
                  (pr2
                     (pr2
                        (pr2
                           (pr2
                              {|
                                pr1 := b0;
                                pr2 :=
                                  {|
                                    pr1 := bs;
                                    pr2 :=
                                      {|
                                        pr1 := hd;
                                        pr2 :=
                                          {|
                                            pr1 := tl;
                                            pr2 := {| pr1 := tl'; pr2 := a |}
                                          |}
                                      |}
                                  |}
                              |})))))
               (pr2
                  (pr2
                     (pr2
                        (pr2
                           (pr2
                              {|
                                pr1 := b0;
                                pr2 :=
                                  {|
                                    pr1 := bs;
                                    pr2 :=
                                      {|
                                        pr1 := hd;
                                        pr2 :=
                                          {|
                                            pr1 := tl;
                                            pr2 := {| pr1 := tl'; pr2 := a |}
                                          |}
                                      |}
                                  |}
                              |})))))
         |} eq_refl) = eq_refl)


DEBUG:Going to execute:
simpl

Goals:
  
  A : Type
  B : Type
  P : B → A → A → Type
  b0 : B
  bs : list B
  hd : A
  hd' : A
  tl : list A
  p : P b0 hd hd'
  e0 : #|bs| = #|tl|
  b : B
  bs0 : list B
  hd0 : A
  hd'0 : A
  tl0 : list A
  p0 : P b hd0 hd'0
  e : #|bs0| = #|tl0|
  ============================
   (eq_refl = eq_refl)

  
  A : Type
  B : Type
  P : B → A → A → Type
  b0 : B
  bs : list B
  hd : A
  tl : list A
  tl' : list A
  a : OnOne2All P bs tl tl'
  b : B
  bs0 : list B
  hd0 : A
  tl0 : list A
  tl'0 : list A
  b1 : OnOne2All P bs0 tl0 tl'0
  ============================
   (eq_refl = eq_refl)


DEBUG:Going to execute:
solve [ constructor ]
Level 5: evaluation returns
idtac of type tacvalue

Level 3: evaluation returns
idtac of type tacvalue

Level 3: evaluation returns
idtac of type tacvalue