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Drodi---4.1.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : Drodi---4.1.1
% Problem  : SWC173+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Sep 24 02:40:15 PM UTC 2026

% Result   : Theorem 53.88s 7.22s
% Output   : CNFRefutation 53.88s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   72
% Syntax   : Number of formulae    :  327 (  19 unt;  49 def)
%            Number of atoms       : 1258 ( 201 equ)
%            Maximal formula atoms :   25 (   3 avg)
%            Number of connectives : 1607 ( 676   ~; 688   |; 110   &)
%                                         (  60 <=>;  73  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   26 (   5 avg)
%            Maximal term depth    :    5 (   1 avg)
%            Number of predicates  :   57 (  55 usr;  48 prp; 0-3 aty)
%            Number of functors    :   19 (  19 usr;  10 con; 0-5 aty)
%            Number of variables   :  319 ( 280   !;  39   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [U] :
      ( ssItem(U)
     => ! [V] :
          ( ssItem(V)
         => ( neq(U,V)
          <=> U != V ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f5,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( frontsegP(U,V)
          <=> ? [W] :
                ( app(V,W) = U
                & ssList(W) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f16,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssItem(V)
         => ssList(cons(V,U)) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f17,axiom,
    ssList(nil),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f21,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssItem(V)
         => nil != cons(V,U) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f23,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssItem(V)
         => hd(cons(V,U)) = V ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f24,axiom,
    ! [U] :
      ( ssList(U)
     => ( nil != U
       => ssList(tl(U)) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f26,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ssList(app(U,V)) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f28,axiom,
    ! [U] :
      ( ssList(U)
     => app(nil,U) = U ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f36,axiom,
    ! [U] :
      ( ssItem(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ( memberP(app(V,W),U)
              <=> ( memberP(W,U)
                  | memberP(V,U) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f37,axiom,
    ! [U] :
      ( ssItem(U)
     => ! [V] :
          ( ssItem(V)
         => ! [W] :
              ( ssList(W)
             => ( memberP(cons(V,W),U)
              <=> ( memberP(W,U)
                  | U = V ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f38,axiom,
    ! [U] :
      ( ssItem(U)
     => ~ memberP(nil,U) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f41,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( ( frontsegP(V,U)
              & frontsegP(U,V) )
           => U = V ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f43,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ( frontsegP(U,V)
               => frontsegP(app(U,W),V) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f44,axiom,
    ! [U] :
      ( ssItem(U)
     => ! [V] :
          ( ssItem(V)
         => ! [W] :
              ( ssList(W)
             => ! [X] :
                  ( ssList(X)
                 => ( frontsegP(cons(U,W),cons(V,X))
                  <=> ( frontsegP(W,X)
                      & U = V ) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f45,axiom,
    ! [U] :
      ( ssList(U)
     => frontsegP(U,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f78,axiom,
    ! [U] :
      ( ssList(U)
     => ( nil != U
       => cons(hd(U),tl(U)) = U ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f79,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ( app(W,V) = app(U,V)
               => W = U ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f80,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ( app(V,W) = app(V,U)
               => W = U ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f82,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => app(app(U,V),W) = app(U,app(V,W)) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f84,axiom,
    ! [U] :
      ( ssList(U)
     => app(U,nil) = U ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f85,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( nil != U
           => hd(app(U,V)) = hd(U) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f96,conjecture,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X] :
                  ( ssList(X)
                 => ( ( ( nil != W
                        | nil != X )
                      & ! [X3] :
                          ( ssItem(X3)
                         => ! [X4] :
                              ( ssList(X4)
                             => ! [X5] :
                                  ( ssList(X5)
                                 => ( ? [X7] :
                                        ( lt(X7,X3)
                                        & memberP(X5,X7)
                                        & ssItem(X7) )
                                    | ? [X6] :
                                        ( lt(X3,X6)
                                        & memberP(X4,X6)
                                        & ssItem(X6) )
                                    | app(app(X4,W),X5) != X
                                    | cons(X3,nil) != W ) ) ) ) )
                    | ! [Y] :
                        ( ssItem(Y)
                       => ! [Z] :
                            ( ssItem(Z)
                           => ( neq(Y,Z)
                              | ! [X1] :
                                  ( ssList(X1)
                                 => ! [X2] :
                                      ( ssList(X2)
                                     => app(app(app(X1,cons(Y,nil)),cons(Z,nil)),X2) != U ) ) ) ) )
                    | U != W
                    | V != X ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f97,negated_conjecture,
    ~ ! [U] :
        ( ssList(U)
       => ! [V] :
            ( ssList(V)
           => ! [W] :
                ( ssList(W)
               => ! [X] :
                    ( ssList(X)
                   => ( ( ( nil != W
                          | nil != X )
                        & ! [X3] :
                            ( ssItem(X3)
                           => ! [X4] :
                                ( ssList(X4)
                               => ! [X5] :
                                    ( ssList(X5)
                                   => ( ? [X7] :
                                          ( lt(X7,X3)
                                          & memberP(X5,X7)
                                          & ssItem(X7) )
                                      | ? [X6] :
                                          ( lt(X3,X6)
                                          & memberP(X4,X6)
                                          & ssItem(X6) )
                                      | app(app(X4,W),X5) != X
                                      | cons(X3,nil) != W ) ) ) ) )
                      | ! [Y] :
                          ( ssItem(Y)
                         => ! [Z] :
                              ( ssItem(Z)
                             => ( neq(Y,Z)
                                | ! [X1] :
                                    ( ssList(X1)
                                   => ! [X2] :
                                        ( ssList(X2)
                                       => app(app(app(X1,cons(Y,nil)),cons(Z,nil)),X2) != U ) ) ) ) )
                      | U != W
                      | V != X ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f96]) ).

fof(f98,plain,
    ! [U] :
      ( ! [V] :
          ( ( neq(U,V)
          <=> U != V )
          | ~ ssItem(V) )
      | ~ ssItem(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f1]) ).

fof(f99,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( U = V
              | neq(U,V) )
            & ( U != V
              | ~ neq(U,V) ) )
          | ~ ssItem(V) )
      | ~ ssItem(U) ),
    inference(NNF_transformation,[status(thm)],[f98]) ).

fof(f101,plain,
    ! [X0,X1] :
      ( X0 = X1
      | neq(X0,X1)
      | ~ ssItem(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f99]) ).

fof(f119,plain,
    ! [U] :
      ( ! [V] :
          ( ( frontsegP(U,V)
          <=> ? [W] :
                ( app(V,W) = U
                & ssList(W) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f5]) ).

fof(f120,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( app(V,W) != U
                  | ~ ssList(W) )
              | frontsegP(U,V) )
            & ( ? [W] :
                  ( app(V,W) = U
                  & ssList(W) )
              | ~ frontsegP(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(NNF_transformation,[status(thm)],[f119]) ).

fof(f121,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( app(V,W) != U
                  | ~ ssList(W) )
              | frontsegP(U,V) )
            & ( ( app(V,sK5_skl(V,U)) = U
                & ssList(sK5_skl(V,U)) )
              | ~ frontsegP(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK5_skl]),skolemize(W,sK5_skl(V,U))],[f120]) ).

fof(f122,plain,
    ! [X0,X1] :
      ( ssList(sK5_skl(X1,X0))
      | ~ frontsegP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f121]) ).

fof(f123,plain,
    ! [X0,X1] :
      ( app(X1,sK5_skl(X1,X0)) = X0
      | ~ frontsegP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f121]) ).

fof(f124,plain,
    ! [X0,X1,X2] :
      ( app(X1,X2) != X0
      | ~ ssList(X2)
      | frontsegP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f121]) ).

fof(f221,plain,
    ! [U] :
      ( ! [V] :
          ( ssList(cons(V,U))
          | ~ ssItem(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f16]) ).

fof(f222,plain,
    ! [X0,X1] :
      ( ssList(cons(X1,X0))
      | ~ ssItem(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f221]) ).

fof(f223,plain,
    ssList(nil),
    inference(cnf_transformation,[status(thm)],[f17]) ).

fof(f234,plain,
    ! [U] :
      ( ! [V] :
          ( nil != cons(V,U)
          | ~ ssItem(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f21]) ).

fof(f235,plain,
    ! [X0,X1] :
      ( nil != cons(X1,X0)
      | ~ ssItem(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f234]) ).

fof(f238,plain,
    ! [U] :
      ( ! [V] :
          ( hd(cons(V,U)) = V
          | ~ ssItem(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f23]) ).

fof(f239,plain,
    ! [X0,X1] :
      ( hd(cons(X1,X0)) = X1
      | ~ ssItem(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f238]) ).

fof(f240,plain,
    ! [U] :
      ( ssList(tl(U))
      | nil = U
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f24]) ).

fof(f241,plain,
    ! [X0] :
      ( ssList(tl(X0))
      | nil = X0
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f240]) ).

fof(f244,plain,
    ! [U] :
      ( ! [V] :
          ( ssList(app(U,V))
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f26]) ).

fof(f245,plain,
    ! [X0,X1] :
      ( ssList(app(X0,X1))
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f244]) ).

fof(f248,plain,
    ! [U] :
      ( app(nil,U) = U
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f28]) ).

fof(f249,plain,
    ! [X0] :
      ( app(nil,X0) = X0
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f248]) ).

fof(f268,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( ( memberP(app(V,W),U)
              <=> ( memberP(W,U)
                  | memberP(V,U) ) )
              | ~ ssList(W) )
          | ~ ssList(V) )
      | ~ ssItem(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f36]) ).

fof(f269,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( ( ( ( ~ memberP(W,U)
                    & ~ memberP(V,U) )
                  | memberP(app(V,W),U) )
                & ( memberP(W,U)
                  | memberP(V,U)
                  | ~ memberP(app(V,W),U) ) )
              | ~ ssList(W) )
          | ~ ssList(V) )
      | ~ ssItem(U) ),
    inference(NNF_transformation,[status(thm)],[f268]) ).

fof(f271,plain,
    ! [X0,X1,X2] :
      ( ~ memberP(X1,X0)
      | memberP(app(X1,X2),X0)
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f269]) ).

fof(f272,plain,
    ! [X0,X1,X2] :
      ( ~ memberP(X2,X0)
      | memberP(app(X1,X2),X0)
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f269]) ).

fof(f273,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( ( memberP(cons(V,W),U)
              <=> ( memberP(W,U)
                  | U = V ) )
              | ~ ssList(W) )
          | ~ ssItem(V) )
      | ~ ssItem(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f37]) ).

fof(f274,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( ( ( ( ~ memberP(W,U)
                    & U != V )
                  | memberP(cons(V,W),U) )
                & ( memberP(W,U)
                  | U = V
                  | ~ memberP(cons(V,W),U) ) )
              | ~ ssList(W) )
          | ~ ssItem(V) )
      | ~ ssItem(U) ),
    inference(NNF_transformation,[status(thm)],[f273]) ).

fof(f275,plain,
    ! [X0,X1,X2] :
      ( memberP(X2,X0)
      | X0 = X1
      | ~ memberP(cons(X1,X2),X0)
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f274]) ).

fof(f276,plain,
    ! [X0,X1,X2] :
      ( X0 != X1
      | memberP(cons(X1,X2),X0)
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f274]) ).

fof(f278,plain,
    ! [U] :
      ( ~ memberP(nil,U)
      | ~ ssItem(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f38]) ).

fof(f279,plain,
    ! [X0] :
      ( ~ memberP(nil,X0)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f278]) ).

fof(f283,plain,
    ! [U] :
      ( ! [V] :
          ( U = V
          | ~ frontsegP(V,U)
          | ~ frontsegP(U,V)
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f41]) ).

fof(f284,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ frontsegP(X1,X0)
      | ~ frontsegP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f283]) ).

fof(f287,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( frontsegP(app(U,W),V)
              | ~ frontsegP(U,V)
              | ~ ssList(W) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f43]) ).

fof(f288,plain,
    ! [X0,X1,X2] :
      ( frontsegP(app(X0,X2),X1)
      | ~ frontsegP(X0,X1)
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f287]) ).

fof(f289,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( ! [X] :
                  ( ( frontsegP(cons(U,W),cons(V,X))
                  <=> ( frontsegP(W,X)
                      & U = V ) )
                  | ~ ssList(X) )
              | ~ ssList(W) )
          | ~ ssItem(V) )
      | ~ ssItem(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f44]) ).

fof(f290,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( ! [X] :
                  ( ( ( ~ frontsegP(W,X)
                      | U != V
                      | frontsegP(cons(U,W),cons(V,X)) )
                    & ( ( frontsegP(W,X)
                        & U = V )
                      | ~ frontsegP(cons(U,W),cons(V,X)) ) )
                  | ~ ssList(X) )
              | ~ ssList(W) )
          | ~ ssItem(V) )
      | ~ ssItem(U) ),
    inference(NNF_transformation,[status(thm)],[f289]) ).

fof(f293,plain,
    ! [X0,X1,X2,X3] :
      ( ~ frontsegP(X2,X3)
      | X0 != X1
      | frontsegP(cons(X0,X2),cons(X1,X3))
      | ~ ssList(X3)
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f290]) ).

fof(f294,plain,
    ! [U] :
      ( frontsegP(U,nil)
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f45]) ).

fof(f295,plain,
    ! [X0] :
      ( frontsegP(X0,nil)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f294]) ).

fof(f373,plain,
    ! [U] :
      ( cons(hd(U),tl(U)) = U
      | nil = U
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f78]) ).

fof(f374,plain,
    ! [X0] :
      ( cons(hd(X0),tl(X0)) = X0
      | nil = X0
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f373]) ).

fof(f375,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( W = U
              | app(W,V) != app(U,V)
              | ~ ssList(W) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f79]) ).

fof(f376,plain,
    ! [X0,X1,X2] :
      ( X2 = X0
      | app(X2,X1) != app(X0,X1)
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f375]) ).

fof(f377,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( W = U
              | app(V,W) != app(V,U)
              | ~ ssList(W) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f80]) ).

fof(f378,plain,
    ! [X0,X1,X2] :
      ( X2 = X0
      | app(X1,X2) != app(X1,X0)
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f377]) ).

fof(f381,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( app(app(U,V),W) = app(U,app(V,W))
              | ~ ssList(W) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f82]) ).

fof(f382,plain,
    ! [X0,X1,X2] :
      ( app(app(X0,X1),X2) = app(X0,app(X1,X2))
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f381]) ).

fof(f388,plain,
    ! [U] :
      ( app(U,nil) = U
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f84]) ).

fof(f389,plain,
    ! [X0] :
      ( app(X0,nil) = X0
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f388]) ).

fof(f390,plain,
    ! [U] :
      ( ! [V] :
          ( hd(app(U,V)) = hd(U)
          | nil = U
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f85]) ).

fof(f391,plain,
    ! [X0,X1] :
      ( hd(app(X0,X1)) = hd(X0)
      | nil = X0
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f390]) ).

fof(f415,plain,
    ? [U] :
      ( ? [V] :
          ( ? [W] :
              ( ? [X] :
                  ( ( ( nil = W
                      & nil = X )
                    | ? [X3] :
                        ( ? [X4] :
                            ( ? [X5] :
                                ( ! [X7] :
                                    ( ~ lt(X7,X3)
                                    | ~ memberP(X5,X7)
                                    | ~ ssItem(X7) )
                                & ! [X6] :
                                    ( ~ lt(X3,X6)
                                    | ~ memberP(X4,X6)
                                    | ~ ssItem(X6) )
                                & app(app(X4,W),X5) = X
                                & cons(X3,nil) = W
                                & ssList(X5) )
                            & ssList(X4) )
                        & ssItem(X3) ) )
                  & ? [Y] :
                      ( ? [Z] :
                          ( ~ neq(Y,Z)
                          & ? [X1] :
                              ( ? [X2] :
                                  ( app(app(app(X1,cons(Y,nil)),cons(Z,nil)),X2) = U
                                  & ssList(X2) )
                              & ssList(X1) )
                          & ssItem(Z) )
                      & ssItem(Y) )
                  & U = W
                  & V = X
                  & ssList(X) )
              & ssList(W) )
          & ssList(V) )
      & ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f97]) ).

fof(f416,definition,
    ! [W,X,X3] :
      ( sP0_prd(X3,X,W)
    <=> ( ? [X4] :
            ( ? [X5] :
                ( ! [X7] :
                    ( ~ lt(X7,X3)
                    | ~ memberP(X5,X7)
                    | ~ ssItem(X7) )
                & ! [X6] :
                    ( ~ lt(X3,X6)
                    | ~ memberP(X4,X6)
                    | ~ ssItem(X6) )
                & app(app(X4,W),X5) = X
                & cons(X3,nil) = W
                & ssList(X5) )
            & ssList(X4) )
        & ssItem(X3) ) ),
    introduced(definition,[new_symbols(definition,[sP0_prd])],[]) ).

fof(f417,plain,
    ? [U] :
      ( ? [V] :
          ( ? [W] :
              ( ? [X] :
                  ( ( ( nil = W
                      & nil = X )
                    | ? [X3] : sP0_prd(X3,X,W) )
                  & ? [Y] :
                      ( ? [Z] :
                          ( ~ neq(Y,Z)
                          & ? [X1] :
                              ( ? [X2] :
                                  ( app(app(app(X1,cons(Y,nil)),cons(Z,nil)),X2) = U
                                  & ssList(X2) )
                              & ssList(X1) )
                          & ssItem(Z) )
                      & ssItem(Y) )
                  & U = W
                  & V = X
                  & ssList(X) )
              & ssList(W) )
          & ssList(V) )
      & ssList(U) ),
    inference(formula_renaming,[status(thm)],[f415,f416]) ).

fof(f418,plain,
    ( ( ( nil = sK49_skl
        & nil = sK50_skl )
      | sP0_prd(sK55_skl,sK50_skl,sK49_skl) )
    & ~ neq(sK51_skl,sK52_skl)
    & app(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil)),sK54_skl) = sK47_skl
    & ssList(sK54_skl)
    & ssList(sK53_skl)
    & ssItem(sK52_skl)
    & ssItem(sK51_skl)
    & sK47_skl = sK49_skl
    & sK48_skl = sK50_skl
    & ssList(sK50_skl)
    & ssList(sK49_skl)
    & ssList(sK48_skl)
    & ssList(sK47_skl) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK47_skl,sK48_skl,sK49_skl,sK50_skl,sK51_skl,sK52_skl,sK53_skl,sK54_skl,sK55_skl]),skolemize(U,sK47_skl),skolemize(V,sK48_skl),skolemize(W,sK49_skl),skolemize(X,sK50_skl),skolemize(Y,sK51_skl),skolemize(Z,sK52_skl),skolemize(X1,sK53_skl),skolemize(X2,sK54_skl),skolemize(X3,sK55_skl)],[f417]) ).

fof(f419,plain,
    ssList(sK47_skl),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f423,plain,
    sK48_skl = sK50_skl,
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f424,plain,
    sK47_skl = sK49_skl,
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f425,plain,
    ssItem(sK51_skl),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f426,plain,
    ssItem(sK52_skl),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f427,plain,
    ssList(sK53_skl),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f428,plain,
    ssList(sK54_skl),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f429,plain,
    app(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil)),sK54_skl) = sK47_skl,
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f430,plain,
    ~ neq(sK51_skl,sK52_skl),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f432,plain,
    ( nil = sK49_skl
    | sP0_prd(sK55_skl,sK50_skl,sK49_skl) ),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f433,definition,
    ! [X3,X4,X6] :
      ( sP1_prd(X6,X4,X3)
    <=> ( ~ lt(X3,X6)
        | ~ memberP(X4,X6)
        | ~ ssItem(X6) ) ),
    introduced(definition,[new_symbols(definition,[sP1_prd])],[]) ).

fof(f434,plain,
    ! [W,X,X3] :
      ( sP0_prd(X3,X,W)
    <=> ( ? [X4] :
            ( ? [X5] :
                ( ! [X7] :
                    ( ~ lt(X7,X3)
                    | ~ memberP(X5,X7)
                    | ~ ssItem(X7) )
                & ! [X6] : sP1_prd(X6,X4,X3)
                & app(app(X4,W),X5) = X
                & cons(X3,nil) = W
                & ssList(X5) )
            & ssList(X4) )
        & ssItem(X3) ) ),
    inference(formula_renaming,[status(thm)],[f416,f433]) ).

fof(f435,plain,
    ! [W,X,X3] :
      ( ( ! [X4] :
            ( ! [X5] :
                ( ? [X7] :
                    ( lt(X7,X3)
                    & memberP(X5,X7)
                    & ssItem(X7) )
                | ? [X6] : ~ sP1_prd(X6,X4,X3)
                | app(app(X4,W),X5) != X
                | cons(X3,nil) != W
                | ~ ssList(X5) )
            | ~ ssList(X4) )
        | ~ ssItem(X3)
        | sP0_prd(X3,X,W) )
      & ( ( ? [X4] :
              ( ? [X5] :
                  ( ! [X7] :
                      ( ~ lt(X7,X3)
                      | ~ memberP(X5,X7)
                      | ~ ssItem(X7) )
                  & ! [X6] : sP1_prd(X6,X4,X3)
                  & app(app(X4,W),X5) = X
                  & cons(X3,nil) = W
                  & ssList(X5) )
              & ssList(X4) )
          & ssItem(X3) )
        | ~ sP0_prd(X3,X,W) ) ),
    inference(NNF_transformation,[status(thm)],[f434]) ).

fof(f436,plain,
    ( ! [W,X,X3] :
        ( ! [X4] :
            ( ! [X5] :
                ( ? [X7] :
                    ( lt(X7,X3)
                    & memberP(X5,X7)
                    & ssItem(X7) )
                | ? [X6] : ~ sP1_prd(X6,X4,X3)
                | app(app(X4,W),X5) != X
                | cons(X3,nil) != W
                | ~ ssList(X5) )
            | ~ ssList(X4) )
        | ~ ssItem(X3)
        | sP0_prd(X3,X,W) )
    & ! [W,X,X3] :
        ( ( ? [X4] :
              ( ? [X5] :
                  ( ! [X7] :
                      ( ~ lt(X7,X3)
                      | ~ memberP(X5,X7)
                      | ~ ssItem(X7) )
                  & ! [X6] : sP1_prd(X6,X4,X3)
                  & app(app(X4,W),X5) = X
                  & cons(X3,nil) = W
                  & ssList(X5) )
              & ssList(X4) )
          & ssItem(X3) )
        | ~ sP0_prd(X3,X,W) ) ),
    inference(miniscoping,[status(thm)],[f435]) ).

fof(f437,plain,
    ( ! [W,X,X3] :
        ( ! [X4] :
            ( ! [X5] :
                ( ( lt(sK59_skl(X5,X4,X3,X,W),X3)
                  & memberP(X5,sK59_skl(X5,X4,X3,X,W))
                  & ssItem(sK59_skl(X5,X4,X3,X,W)) )
                | ~ sP1_prd(sK58_skl(X5,X4,X3,X,W),X4,X3)
                | app(app(X4,W),X5) != X
                | cons(X3,nil) != W
                | ~ ssList(X5) )
            | ~ ssList(X4) )
        | ~ ssItem(X3)
        | sP0_prd(X3,X,W) )
    & ! [W,X,X3] :
        ( ( ! [X7] :
              ( ~ lt(X7,X3)
              | ~ memberP(sK57_skl(X3,X,W),X7)
              | ~ ssItem(X7) )
          & ! [X6] : sP1_prd(X6,sK56_skl(X3,X,W),X3)
          & app(app(sK56_skl(X3,X,W),W),sK57_skl(X3,X,W)) = X
          & cons(X3,nil) = W
          & ssList(sK57_skl(X3,X,W))
          & ssList(sK56_skl(X3,X,W))
          & ssItem(X3) )
        | ~ sP0_prd(X3,X,W) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK56_skl,sK57_skl,sK58_skl,sK59_skl]),skolemize(X4,sK56_skl(X3,X,W)),skolemize(X5,sK57_skl(X3,X,W)),skolemize(X6,sK58_skl(X5,X4,X3,X,W)),skolemize(X7,sK59_skl(X5,X4,X3,X,W))],[f436]) ).

fof(f438,plain,
    ! [X0,X1,X2] :
      ( ssItem(X0)
      | ~ sP0_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f437]) ).

fof(f441,plain,
    ! [X0,X1,X2] :
      ( cons(X0,nil) = X2
      | ~ sP0_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f437]) ).

fof(f454,definition,
    ( sQ0_spl
  <=> sP0_prd(sK55_skl,sK50_skl,sK49_skl) ),
    introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).

fof(f455,plain,
    ( ~ sQ0_spl
    | sP0_prd(sK55_skl,sK50_skl,sK49_skl) ),
    inference(component_clause,[status(thm)],[f454]) ).

fof(f461,definition,
    ( sQ2_spl
  <=> nil = sK49_skl ),
    introduced(definition,[new_symbols(definition,[sQ2_spl])],[split_symbol_definition]) ).

fof(f462,plain,
    ( ~ sQ2_spl
    | nil = sK49_skl ),
    inference(component_clause,[status(thm)],[f461]) ).

fof(f464,plain,
    ( sQ2_spl
    | sQ0_spl ),
    inference(split_clause,[status(thm)],[f432,f454,f461]) ).

fof(f469,plain,
    ! [X0,X1] :
      ( ~ ssList(X1)
      | frontsegP(app(X0,X1),X0)
      | ~ ssList(X0)
      | ~ ssList(app(X0,X1)) ),
    inference(destructive_equality_resolution,[status(thm)],[f124]) ).

fof(f482,plain,
    ! [X1,X2] :
      ( memberP(cons(X1,X2),X1)
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ ssItem(X1) ),
    inference(destructive_equality_resolution,[status(thm)],[f276]) ).

fof(f483,plain,
    ! [X0,X1] :
      ( memberP(cons(X0,X1),X0)
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f482]) ).

fof(f484,plain,
    ! [X1,X2,X3] :
      ( ~ frontsegP(X2,X3)
      | frontsegP(cons(X1,X2),cons(X1,X3))
      | ~ ssList(X3)
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ ssItem(X1) ),
    inference(destructive_equality_resolution,[status(thm)],[f293]) ).

fof(f485,plain,
    ! [X0,X1,X2] :
      ( ~ frontsegP(X1,X2)
      | frontsegP(cons(X0,X1),cons(X0,X2))
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f484]) ).

fof(f500,plain,
    ( sK51_skl = sK52_skl
    | ~ ssItem(sK52_skl)
    | ~ ssItem(sK51_skl) ),
    inference(resolution,[status(thm)],[f101,f430]) ).

fof(f503,definition,
    ( sQ3_spl
  <=> ssItem(sK51_skl) ),
    introduced(definition,[new_symbols(definition,[sQ3_spl])],[split_symbol_definition]) ).

fof(f505,plain,
    ( sQ3_spl
    | ~ ssItem(sK51_skl) ),
    inference(component_clause,[status(thm)],[f503]) ).

fof(f506,definition,
    ( sQ4_spl
  <=> ssItem(sK52_skl) ),
    introduced(definition,[new_symbols(definition,[sQ4_spl])],[split_symbol_definition]) ).

fof(f508,plain,
    ( sQ4_spl
    | ~ ssItem(sK52_skl) ),
    inference(component_clause,[status(thm)],[f506]) ).

fof(f509,definition,
    ( sQ5_spl
  <=> sK51_skl = sK52_skl ),
    introduced(definition,[new_symbols(definition,[sQ5_spl])],[split_symbol_definition]) ).

fof(f510,plain,
    ( ~ sQ5_spl
    | sK51_skl = sK52_skl ),
    inference(component_clause,[status(thm)],[f509]) ).

fof(f512,plain,
    ( sQ5_spl
    | ~ sQ4_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f500,f503,f506,f509]) ).

fof(f520,plain,
    ( sQ3_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f505,f425]) ).

fof(f521,plain,
    sQ3_spl,
    inference(contradiction_clause,[status(thm)],[f520]) ).

fof(f537,plain,
    ( ssList(sK47_skl)
    | ~ ssList(sK54_skl)
    | ~ ssList(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil))) ),
    inference(paramodulation,[status(thm)],[f429,f245]) ).

fof(f538,definition,
    ( sQ9_spl
  <=> ssList(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil))) ),
    introduced(definition,[new_symbols(definition,[sQ9_spl])],[split_symbol_definition]) ).

fof(f540,plain,
    ( sQ9_spl
    | ~ ssList(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil))) ),
    inference(component_clause,[status(thm)],[f538]) ).

fof(f541,definition,
    ( sQ10_spl
  <=> ssList(sK54_skl) ),
    introduced(definition,[new_symbols(definition,[sQ10_spl])],[split_symbol_definition]) ).

fof(f543,plain,
    ( sQ10_spl
    | ~ ssList(sK54_skl) ),
    inference(component_clause,[status(thm)],[f541]) ).

fof(f544,definition,
    ( sQ11_spl
  <=> ssList(sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ11_spl])],[split_symbol_definition]) ).

fof(f547,plain,
    ( sQ11_spl
    | ~ sQ10_spl
    | ~ sQ9_spl ),
    inference(split_clause,[status(thm)],[f537,f538,f541,f544]) ).

fof(f548,plain,
    ( sQ10_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f543,f428]) ).

fof(f549,plain,
    sQ10_spl,
    inference(contradiction_clause,[status(thm)],[f548]) ).

fof(f550,plain,
    ! [X0] :
      ( ~ memberP(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil)),X0)
      | memberP(sK47_skl,X0)
      | ~ ssList(sK54_skl)
      | ~ ssList(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil)))
      | ~ ssItem(X0) ),
    inference(paramodulation,[status(thm)],[f429,f271]) ).

fof(f551,definition,
    ! [X0] :
      ( sQ12_spl
    <=> ( ~ memberP(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil)),X0)
        | memberP(sK47_skl,X0)
        | ~ ssItem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ12_spl])],[split_symbol_definition]) ).

fof(f552,plain,
    ! [X0] :
      ( ~ sQ12_spl
      | ~ memberP(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK52_skl,nil)),X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(component_clause,[status(thm)],[f551]) ).

fof(f554,plain,
    ( ~ sQ10_spl
    | ~ sQ9_spl
    | sQ12_spl ),
    inference(split_clause,[status(thm)],[f550,f551,f538,f541]) ).

fof(f594,definition,
    ( sQ18_spl
  <=> ssList(nil) ),
    introduced(definition,[new_symbols(definition,[sQ18_spl])],[split_symbol_definition]) ).

fof(f596,plain,
    ( sQ18_spl
    | ~ ssList(nil) ),
    inference(component_clause,[status(thm)],[f594]) ).

fof(f604,plain,
    ( sQ18_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f596,f223]) ).

fof(f605,plain,
    sQ18_spl,
    inference(contradiction_clause,[status(thm)],[f604]) ).

fof(f623,plain,
    ( sQ4_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f508,f426]) ).

fof(f624,plain,
    sQ4_spl,
    inference(contradiction_clause,[status(thm)],[f623]) ).

fof(f626,plain,
    ( ~ sQ5_spl
    | app(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK51_skl,nil)),sK54_skl) = sK47_skl ),
    inference(backward_demodulation,[status(thm)],[f510,f429]) ).

fof(f656,plain,
    ! [X0,X1] :
      ( ~ ssList(X1)
      | frontsegP(app(X0,X1),X0)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f469,f245]) ).

fof(f663,plain,
    ( ~ sQ0_spl
    | sP0_prd(sK55_skl,sK48_skl,sK49_skl) ),
    inference(forward_demodulation,[status(thm)],[f423,f455]) ).

fof(f664,plain,
    ( ~ sQ0_spl
    | sP0_prd(sK55_skl,sK48_skl,sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f424,f663]) ).

fof(f665,plain,
    ( ~ sQ0_spl
    | cons(sK55_skl,nil) = sK47_skl ),
    inference(resolution,[status(thm)],[f664,f441]) ).

fof(f666,plain,
    ( ~ sQ0_spl
    | ssItem(sK55_skl) ),
    inference(resolution,[status(thm)],[f664,f438]) ).

fof(f668,plain,
    ! [X0] :
      ( ~ sQ0_spl
      | memberP(nil,X0)
      | X0 = sK55_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssList(nil)
      | ~ ssItem(sK55_skl)
      | ~ ssItem(X0) ),
    inference(paramodulation,[status(thm)],[f665,f275]) ).

fof(f681,definition,
    ( sQ24_spl
  <=> ssItem(sK55_skl) ),
    introduced(definition,[new_symbols(definition,[sQ24_spl])],[split_symbol_definition]) ).

fof(f683,plain,
    ( sQ24_spl
    | ~ ssItem(sK55_skl) ),
    inference(component_clause,[status(thm)],[f681]) ).

fof(f685,definition,
    ! [X0] :
      ( sQ25_spl
    <=> ( memberP(nil,X0)
        | X0 = sK55_skl
        | ~ memberP(sK47_skl,X0)
        | ~ ssItem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ25_spl])],[split_symbol_definition]) ).

fof(f686,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | memberP(nil,X0)
      | X0 = sK55_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(component_clause,[status(thm)],[f685]) ).

fof(f688,plain,
    ( ~ sQ0_spl
    | ~ sQ18_spl
    | ~ sQ24_spl
    | sQ25_spl ),
    inference(split_clause,[status(thm)],[f668,f685,f681,f594,f454]) ).

fof(f702,definition,
    ( sQ29_spl
  <=> nil = sK47_skl ),
    introduced(definition,[new_symbols(definition,[sQ29_spl])],[split_symbol_definition]) ).

fof(f704,plain,
    ( sQ29_spl
    | nil != sK47_skl ),
    inference(component_clause,[status(thm)],[f702]) ).

fof(f707,plain,
    ( sQ24_spl
    | ~ sQ0_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f683,f666]) ).

fof(f708,plain,
    ( sQ24_spl
    | ~ sQ0_spl ),
    inference(contradiction_clause,[status(thm)],[f707]) ).

fof(f710,plain,
    ( ~ sQ2_spl
    | nil = sK47_skl ),
    inference(forward_demodulation,[status(thm)],[f424,f462]) ).

fof(f777,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | X0 = sK55_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f686,f279]) ).

fof(f779,plain,
    ! [X0,X1] :
      ( ~ frontsegP(app(X1,X0),X1)
      | ~ ssList(X1)
      | ~ ssList(app(X1,X0))
      | sK5_skl(X1,app(X1,X0)) = X0
      | ~ ssList(sK5_skl(X1,app(X1,X0)))
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f378,f123]) ).

fof(f787,plain,
    ! [X0,X1] :
      ( ~ frontsegP(app(X1,X0),X1)
      | ~ ssList(app(X1,X0))
      | sK5_skl(X1,app(X1,X0)) = X0
      | ~ ssList(sK5_skl(X1,app(X1,X0)))
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f779]) ).

fof(f788,plain,
    ! [X0,X1] :
      ( ~ frontsegP(app(X1,X0),X1)
      | ~ ssList(app(X1,X0))
      | sK5_skl(X1,app(X1,X0)) = X0
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f787,f122]) ).

fof(f942,plain,
    ( sQ9_spl
    | ~ sQ5_spl
    | ~ ssList(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK51_skl,nil))) ),
    inference(forward_demodulation,[status(thm)],[f510,f540]) ).

fof(f943,plain,
    ( sQ9_spl
    | ~ sQ5_spl
    | ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(app(sK53_skl,cons(sK51_skl,nil))) ),
    inference(resolution,[status(thm)],[f942,f245]) ).

fof(f944,definition,
    ( sQ44_spl
  <=> ssList(app(sK53_skl,cons(sK51_skl,nil))) ),
    introduced(definition,[new_symbols(definition,[sQ44_spl])],[split_symbol_definition]) ).

fof(f945,plain,
    ( ~ sQ44_spl
    | ssList(app(sK53_skl,cons(sK51_skl,nil))) ),
    inference(component_clause,[status(thm)],[f944]) ).

fof(f946,plain,
    ( sQ44_spl
    | ~ ssList(app(sK53_skl,cons(sK51_skl,nil))) ),
    inference(component_clause,[status(thm)],[f944]) ).

fof(f947,definition,
    ( sQ45_spl
  <=> ssList(cons(sK51_skl,nil)) ),
    introduced(definition,[new_symbols(definition,[sQ45_spl])],[split_symbol_definition]) ).

fof(f949,plain,
    ( sQ45_spl
    | ~ ssList(cons(sK51_skl,nil)) ),
    inference(component_clause,[status(thm)],[f947]) ).

fof(f950,plain,
    ( sQ9_spl
    | ~ sQ5_spl
    | ~ sQ45_spl
    | ~ sQ44_spl ),
    inference(split_clause,[status(thm)],[f943,f944,f947,f509,f538]) ).

fof(f951,plain,
    ( sQ44_spl
    | ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK53_skl) ),
    inference(resolution,[status(thm)],[f946,f245]) ).

fof(f952,definition,
    ( sQ46_spl
  <=> ssList(sK53_skl) ),
    introduced(definition,[new_symbols(definition,[sQ46_spl])],[split_symbol_definition]) ).

fof(f954,plain,
    ( sQ46_spl
    | ~ ssList(sK53_skl) ),
    inference(component_clause,[status(thm)],[f952]) ).

fof(f955,plain,
    ( sQ44_spl
    | ~ sQ45_spl
    | ~ sQ46_spl ),
    inference(split_clause,[status(thm)],[f951,f952,f947,f944]) ).

fof(f956,plain,
    ( sQ45_spl
    | ~ ssItem(sK51_skl)
    | ~ ssList(nil) ),
    inference(resolution,[status(thm)],[f949,f222]) ).

fof(f957,plain,
    ( sQ45_spl
    | ~ sQ3_spl
    | ~ sQ18_spl ),
    inference(split_clause,[status(thm)],[f956,f594,f503,f947]) ).

fof(f963,plain,
    ( sQ46_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f954,f427]) ).

fof(f964,plain,
    sQ46_spl,
    inference(contradiction_clause,[status(thm)],[f963]) ).

fof(f1265,plain,
    ! [X0] :
      ( ~ sQ12_spl
      | ~ sQ5_spl
      | ~ memberP(app(app(sK53_skl,cons(sK51_skl,nil)),cons(sK51_skl,nil)),X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_demodulation,[status(thm)],[f510,f552]) ).

fof(f1282,plain,
    ( ~ sQ0_spl
    | hd(sK47_skl) = sK55_skl
    | ~ ssItem(sK55_skl)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f665,f239]) ).

fof(f1348,definition,
    ( sQ118_spl
  <=> hd(sK47_skl) = sK55_skl ),
    introduced(definition,[new_symbols(definition,[sQ118_spl])],[split_symbol_definition]) ).

fof(f1349,plain,
    ( ~ sQ118_spl
    | hd(sK47_skl) = sK55_skl ),
    inference(component_clause,[status(thm)],[f1348]) ).

fof(f1351,plain,
    ( ~ sQ0_spl
    | sQ118_spl
    | ~ sQ24_spl
    | ~ sQ18_spl ),
    inference(split_clause,[status(thm)],[f1282,f594,f681,f1348,f454]) ).

fof(f1400,plain,
    ! [X0] :
      ( ~ sQ12_spl
      | ~ sQ5_spl
      | ~ memberP(app(sK53_skl,cons(sK51_skl,nil)),X0)
      | ~ ssList(cons(sK51_skl,nil))
      | ~ ssList(app(sK53_skl,cons(sK51_skl,nil)))
      | ~ ssItem(X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f1265,f271]) ).

fof(f1402,definition,
    ( sQ120_spl
  <=> memberP(sK47_skl,sK51_skl) ),
    introduced(definition,[new_symbols(definition,[sQ120_spl])],[split_symbol_definition]) ).

fof(f1403,plain,
    ( ~ sQ120_spl
    | memberP(sK47_skl,sK51_skl) ),
    inference(component_clause,[status(thm)],[f1402]) ).

fof(f1406,definition,
    ! [X0] :
      ( sQ121_spl
    <=> ( ~ memberP(app(sK53_skl,cons(sK51_skl,nil)),X0)
        | ~ ssItem(X0)
        | memberP(sK47_skl,X0)
        | ~ ssItem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ121_spl])],[split_symbol_definition]) ).

fof(f1407,plain,
    ! [X0] :
      ( ~ sQ121_spl
      | ~ memberP(app(sK53_skl,cons(sK51_skl,nil)),X0)
      | ~ ssItem(X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(component_clause,[status(thm)],[f1406]) ).

fof(f1409,plain,
    ( ~ sQ12_spl
    | ~ sQ5_spl
    | ~ sQ45_spl
    | ~ sQ44_spl
    | sQ121_spl ),
    inference(split_clause,[status(thm)],[f1400,f1406,f944,f947,f509,f551]) ).

fof(f1410,definition,
    ! [X0] :
      ( sQ122_spl
    <=> ( ~ memberP(cons(sK51_skl,nil),X0)
        | ~ ssItem(X0)
        | memberP(sK47_skl,X0)
        | ~ ssItem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ122_spl])],[split_symbol_definition]) ).

fof(f1411,plain,
    ! [X0] :
      ( ~ sQ122_spl
      | ~ memberP(cons(sK51_skl,nil),X0)
      | ~ ssItem(X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(component_clause,[status(thm)],[f1410]) ).

fof(f1414,plain,
    ! [X0] :
      ( ~ sQ121_spl
      | ~ memberP(app(sK53_skl,cons(sK51_skl,nil)),X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f1407]) ).

fof(f1415,plain,
    ! [X0] :
      ( ~ sQ122_spl
      | ~ memberP(cons(sK51_skl,nil),X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f1411]) ).

fof(f1416,plain,
    ( ~ sQ25_spl
    | ~ sQ120_spl
    | sK51_skl = sK55_skl
    | ~ ssItem(sK51_skl) ),
    inference(resolution,[status(thm)],[f1403,f777]) ).

fof(f1417,definition,
    ( sQ123_spl
  <=> sK51_skl = sK55_skl ),
    introduced(definition,[new_symbols(definition,[sQ123_spl])],[split_symbol_definition]) ).

fof(f1418,plain,
    ( ~ sQ123_spl
    | sK51_skl = sK55_skl ),
    inference(component_clause,[status(thm)],[f1417]) ).

fof(f1420,plain,
    ( ~ sQ25_spl
    | ~ sQ120_spl
    | sQ123_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f1416,f503,f1417,f1402,f685]) ).

fof(f1446,plain,
    ( ~ sQ5_spl
    | sK47_skl = app(app(sK53_skl,cons(sK51_skl,nil)),app(cons(sK51_skl,nil),sK54_skl))
    | ~ ssList(sK54_skl)
    | ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(app(sK53_skl,cons(sK51_skl,nil))) ),
    inference(paramodulation,[status(thm)],[f626,f382]) ).

fof(f1471,definition,
    ( sQ128_spl
  <=> sK47_skl = app(app(sK53_skl,cons(sK51_skl,nil)),app(cons(sK51_skl,nil),sK54_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ128_spl])],[split_symbol_definition]) ).

fof(f1472,plain,
    ( ~ sQ128_spl
    | sK47_skl = app(app(sK53_skl,cons(sK51_skl,nil)),app(cons(sK51_skl,nil),sK54_skl)) ),
    inference(component_clause,[status(thm)],[f1471]) ).

fof(f1474,plain,
    ( ~ sQ5_spl
    | sQ128_spl
    | ~ sQ10_spl
    | ~ sQ45_spl
    | ~ sQ44_spl ),
    inference(split_clause,[status(thm)],[f1446,f944,f947,f541,f1471,f509]) ).

fof(f1522,plain,
    ( ~ sQ0_spl
    | ~ sQ123_spl
    | cons(sK51_skl,nil) = sK47_skl ),
    inference(backward_demodulation,[status(thm)],[f1418,f665]) ).

fof(f1528,plain,
    ( ~ sQ44_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | ssList(app(sK53_skl,sK47_skl)) ),
    inference(backward_demodulation,[status(thm)],[f1522,f945]) ).

fof(f1554,plain,
    ( ~ sQ0_spl
    | ~ sQ123_spl
    | nil != sK47_skl
    | ~ ssItem(sK51_skl)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f1522,f235]) ).

fof(f1631,plain,
    ( ~ sQ0_spl
    | ~ sQ123_spl
    | ~ sQ29_spl
    | ~ sQ3_spl
    | ~ sQ18_spl ),
    inference(split_clause,[status(thm)],[f1554,f594,f503,f702,f1417,f454]) ).

fof(f1653,plain,
    ( ~ sQ122_spl
    | ~ ssList(nil)
    | ~ ssItem(sK51_skl)
    | memberP(sK47_skl,sK51_skl)
    | ~ ssItem(sK51_skl) ),
    inference(resolution,[status(thm)],[f1415,f483]) ).

fof(f1658,plain,
    ( ~ sQ122_spl
    | ~ sQ18_spl
    | sQ120_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f1653,f503,f1402,f594,f1410]) ).

fof(f1767,plain,
    ( ~ sQ118_spl
    | ~ sQ123_spl
    | hd(sK47_skl) = sK51_skl ),
    inference(forward_demodulation,[status(thm)],[f1418,f1349]) ).

fof(f1858,definition,
    ( sQ159_spl
  <=> ssList(app(sK53_skl,sK47_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ159_spl])],[split_symbol_definition]) ).

fof(f1860,plain,
    ( sQ159_spl
    | ~ ssList(app(sK53_skl,sK47_skl)) ),
    inference(component_clause,[status(thm)],[f1858]) ).

fof(f1876,plain,
    ( ~ sQ5_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | app(app(app(sK53_skl,sK47_skl),cons(sK51_skl,nil)),sK54_skl) = sK47_skl ),
    inference(forward_demodulation,[status(thm)],[f1522,f626]) ).

fof(f1877,plain,
    ( ~ sQ5_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | app(app(app(sK53_skl,sK47_skl),sK47_skl),sK54_skl) = sK47_skl ),
    inference(forward_demodulation,[status(thm)],[f1522,f1876]) ).

fof(f1964,plain,
    ( sQ159_spl
    | ~ sQ44_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f1860,f1528]) ).

fof(f1965,plain,
    ( sQ159_spl
    | ~ sQ44_spl
    | ~ sQ0_spl
    | ~ sQ123_spl ),
    inference(contradiction_clause,[status(thm)],[f1964]) ).

fof(f2446,definition,
    ( sQ235_spl
  <=> nil = app(sK53_skl,sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ235_spl])],[split_symbol_definition]) ).

fof(f2447,plain,
    ( ~ sQ235_spl
    | nil = app(sK53_skl,sK47_skl) ),
    inference(component_clause,[status(thm)],[f2446]) ).

fof(f2463,plain,
    ! [X0] :
      ( ~ sQ235_spl
      | ~ memberP(sK47_skl,X0)
      | memberP(nil,X0)
      | ~ ssList(sK47_skl)
      | ~ ssList(sK53_skl)
      | ~ ssItem(X0) ),
    inference(paramodulation,[status(thm)],[f2447,f272]) ).

fof(f2468,definition,
    ( sQ236_spl
  <=> nil = sK53_skl ),
    introduced(definition,[new_symbols(definition,[sQ236_spl])],[split_symbol_definition]) ).

fof(f2469,plain,
    ( ~ sQ236_spl
    | nil = sK53_skl ),
    inference(component_clause,[status(thm)],[f2468]) ).

fof(f2474,definition,
    ! [X0] :
      ( sQ237_spl
    <=> ( ~ memberP(sK47_skl,X0)
        | memberP(nil,X0)
        | ~ ssItem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ237_spl])],[split_symbol_definition]) ).

fof(f2475,plain,
    ! [X0] :
      ( ~ sQ237_spl
      | ~ memberP(sK47_skl,X0)
      | memberP(nil,X0)
      | ~ ssItem(X0) ),
    inference(component_clause,[status(thm)],[f2474]) ).

fof(f2477,plain,
    ( ~ sQ235_spl
    | ~ sQ11_spl
    | ~ sQ46_spl
    | sQ237_spl ),
    inference(split_clause,[status(thm)],[f2463,f2474,f952,f544,f2446]) ).

fof(f2488,plain,
    ! [X0] :
      ( ~ sQ237_spl
      | ~ memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2475,f279]) ).

fof(f2489,plain,
    ( ~ sQ120_spl
    | ~ sQ237_spl
    | ~ ssItem(sK51_skl) ),
    inference(resolution,[status(thm)],[f2488,f1403]) ).

fof(f2490,plain,
    ( ~ sQ120_spl
    | ~ sQ237_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f2489,f503,f2474,f1402]) ).

fof(f2637,definition,
    ( sQ243_spl
  <=> ssList(app(sK47_skl,sK47_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ243_spl])],[split_symbol_definition]) ).

fof(f2639,plain,
    ( sQ243_spl
    | ~ ssList(app(sK47_skl,sK47_skl)) ),
    inference(component_clause,[status(thm)],[f2637]) ).

fof(f2775,plain,
    ( sQ243_spl
    | ~ ssList(sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(resolution,[status(thm)],[f2639,f245]) ).

fof(f2776,plain,
    ( sQ243_spl
    | ~ sQ11_spl ),
    inference(split_clause,[status(thm)],[f2775,f544,f2637]) ).

fof(f2826,definition,
    ( sQ259_spl
  <=> frontsegP(sK47_skl,sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ259_spl])],[split_symbol_definition]) ).

fof(f2827,plain,
    ( ~ sQ259_spl
    | frontsegP(sK47_skl,sK47_skl) ),
    inference(component_clause,[status(thm)],[f2826]) ).

fof(f2945,definition,
    ( sQ274_spl
  <=> frontsegP(sK47_skl,app(sK53_skl,sK47_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ274_spl])],[split_symbol_definition]) ).

fof(f2946,plain,
    ( ~ sQ274_spl
    | frontsegP(sK47_skl,app(sK53_skl,sK47_skl)) ),
    inference(component_clause,[status(thm)],[f2945]) ).

fof(f2968,plain,
    ( ~ sQ274_spl
    | app(sK53_skl,sK47_skl) = sK47_skl
    | ~ frontsegP(app(sK53_skl,sK47_skl),sK47_skl)
    | ~ ssList(sK47_skl)
    | ~ ssList(app(sK53_skl,sK47_skl)) ),
    inference(resolution,[status(thm)],[f2946,f284]) ).

fof(f2970,definition,
    ( sQ278_spl
  <=> frontsegP(app(sK53_skl,sK47_skl),sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ278_spl])],[split_symbol_definition]) ).

fof(f2972,plain,
    ( sQ278_spl
    | ~ frontsegP(app(sK53_skl,sK47_skl),sK47_skl) ),
    inference(component_clause,[status(thm)],[f2970]) ).

fof(f2973,definition,
    ( sQ279_spl
  <=> app(sK53_skl,sK47_skl) = sK47_skl ),
    introduced(definition,[new_symbols(definition,[sQ279_spl])],[split_symbol_definition]) ).

fof(f2974,plain,
    ( ~ sQ279_spl
    | app(sK53_skl,sK47_skl) = sK47_skl ),
    inference(component_clause,[status(thm)],[f2973]) ).

fof(f2976,plain,
    ( ~ sQ274_spl
    | sQ279_spl
    | ~ sQ278_spl
    | ~ sQ11_spl
    | ~ sQ159_spl ),
    inference(split_clause,[status(thm)],[f2968,f1858,f544,f2970,f2973,f2945]) ).

fof(f3027,definition,
    ( sQ286_spl
  <=> frontsegP(sK53_skl,sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ286_spl])],[split_symbol_definition]) ).

fof(f3166,plain,
    ! [X0] :
      ( ~ sQ279_spl
      | sK53_skl = X0
      | sK47_skl != app(X0,sK47_skl)
      | ~ ssList(sK53_skl)
      | ~ ssList(sK47_skl)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f2974,f376]) ).

fof(f3175,definition,
    ! [X0] :
      ( sQ299_spl
    <=> ( sK53_skl = X0
        | sK47_skl != app(X0,sK47_skl)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ299_spl])],[split_symbol_definition]) ).

fof(f3176,plain,
    ! [X0] :
      ( ~ sQ299_spl
      | sK53_skl = X0
      | sK47_skl != app(X0,sK47_skl)
      | ~ ssList(X0) ),
    inference(component_clause,[status(thm)],[f3175]) ).

fof(f3178,plain,
    ( ~ sQ279_spl
    | ~ sQ46_spl
    | ~ sQ11_spl
    | sQ299_spl ),
    inference(split_clause,[status(thm)],[f3166,f3175,f544,f952,f2973]) ).

fof(f3277,plain,
    ! [X0] :
      ( ~ sQ0_spl
      | ~ sQ123_spl
      | ~ frontsegP(X0,nil)
      | frontsegP(cons(sK51_skl,X0),sK47_skl)
      | ~ ssList(nil)
      | ~ ssList(X0)
      | ~ ssItem(sK51_skl) ),
    inference(paramodulation,[status(thm)],[f1522,f485]) ).

fof(f3298,definition,
    ! [X0] :
      ( sQ310_spl
    <=> ( ~ frontsegP(X0,nil)
        | frontsegP(cons(sK51_skl,X0),sK47_skl)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ310_spl])],[split_symbol_definition]) ).

fof(f3299,plain,
    ! [X0] :
      ( ~ sQ310_spl
      | ~ frontsegP(X0,nil)
      | frontsegP(cons(sK51_skl,X0),sK47_skl)
      | ~ ssList(X0) ),
    inference(component_clause,[status(thm)],[f3298]) ).

fof(f3301,plain,
    ( ~ sQ0_spl
    | ~ sQ123_spl
    | ~ sQ18_spl
    | sQ310_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f3277,f503,f3298,f594,f1417,f454]) ).

fof(f3302,plain,
    ! [X0] :
      ( ~ sQ310_spl
      | frontsegP(cons(sK51_skl,X0),sK47_skl)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f3299,f295]) ).

fof(f3674,plain,
    ! [X0] :
      ( ~ sQ121_spl
      | ~ memberP(cons(sK51_skl,nil),X0)
      | ~ ssList(cons(sK51_skl,nil))
      | ~ ssList(sK53_skl)
      | ~ ssItem(X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f1414,f272]) ).

fof(f3676,plain,
    ( ~ sQ121_spl
    | ~ sQ45_spl
    | ~ sQ46_spl
    | sQ122_spl ),
    inference(split_clause,[status(thm)],[f3674,f1410,f952,f947,f1406]) ).

fof(f3695,plain,
    ( ~ sQ120_spl
    | ~ sQ2_spl
    | memberP(nil,sK51_skl) ),
    inference(backward_demodulation,[status(thm)],[f710,f1403]) ).

fof(f3706,plain,
    ( ~ sQ120_spl
    | ~ sQ2_spl
    | ~ ssItem(sK51_skl) ),
    inference(resolution,[status(thm)],[f3695,f279]) ).

fof(f3707,plain,
    ( ~ sQ120_spl
    | ~ sQ2_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f3706,f503,f461,f1402]) ).

fof(f7228,plain,
    ! [X0,X1] :
      ( ~ frontsegP(app(X1,X0),X1)
      | sK5_skl(X1,app(X1,X0)) = X0
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f788,f245]) ).

fof(f7232,definition,
    ( sQ618_spl
  <=> sK5_skl(sK47_skl,sK47_skl) = sK47_skl ),
    introduced(definition,[new_symbols(definition,[sQ618_spl])],[split_symbol_definition]) ).

fof(f7233,plain,
    ( ~ sQ618_spl
    | sK5_skl(sK47_skl,sK47_skl) = sK47_skl ),
    inference(component_clause,[status(thm)],[f7232]) ).

fof(f7235,definition,
    ( sQ619_spl
  <=> frontsegP(app(sK47_skl,sK47_skl),sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ619_spl])],[split_symbol_definition]) ).

fof(f7237,plain,
    ( sQ619_spl
    | ~ frontsegP(app(sK47_skl,sK47_skl),sK47_skl) ),
    inference(component_clause,[status(thm)],[f7235]) ).

fof(f7239,definition,
    ( sQ620_spl
  <=> sK5_skl(sK47_skl,sK47_skl) = nil ),
    introduced(definition,[new_symbols(definition,[sQ620_spl])],[split_symbol_definition]) ).

fof(f7240,plain,
    ( ~ sQ620_spl
    | sK5_skl(sK47_skl,sK47_skl) = nil ),
    inference(component_clause,[status(thm)],[f7239]) ).

fof(f7242,definition,
    ( sQ621_spl
  <=> frontsegP(app(sK47_skl,nil),sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ621_spl])],[split_symbol_definition]) ).

fof(f7244,plain,
    ( sQ621_spl
    | ~ frontsegP(app(sK47_skl,nil),sK47_skl) ),
    inference(component_clause,[status(thm)],[f7242]) ).

fof(f7329,definition,
    ( sQ629_spl
  <=> app(nil,sK47_skl) = sK47_skl ),
    introduced(definition,[new_symbols(definition,[sQ629_spl])],[split_symbol_definition]) ).

fof(f7330,plain,
    ( ~ sQ629_spl
    | app(nil,sK47_skl) = sK47_skl ),
    inference(component_clause,[status(thm)],[f7329]) ).

fof(f7331,plain,
    ( sQ629_spl
    | app(nil,sK47_skl) != sK47_skl ),
    inference(component_clause,[status(thm)],[f7329]) ).

fof(f7336,definition,
    ( sQ630_spl
  <=> app(sK47_skl,sK47_skl) = sK47_skl ),
    introduced(definition,[new_symbols(definition,[sQ630_spl])],[split_symbol_definition]) ).

fof(f7337,plain,
    ( ~ sQ630_spl
    | app(sK47_skl,sK47_skl) = sK47_skl ),
    inference(component_clause,[status(thm)],[f7336]) ).

fof(f7436,plain,
    ( sQ629_spl
    | ~ ssList(sK47_skl) ),
    inference(resolution,[status(thm)],[f7331,f249]) ).

fof(f7437,plain,
    ( sQ629_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f7436,f419]) ).

fof(f7438,plain,
    sQ629_spl,
    inference(contradiction_clause,[status(thm)],[f7437]) ).

fof(f7632,plain,
    ( ~ sQ630_spl
    | ~ frontsegP(app(sK47_skl,sK47_skl),sK47_skl)
    | sK5_skl(sK47_skl,sK47_skl) = sK47_skl
    | ~ ssList(sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(paramodulation,[status(thm)],[f7337,f7228]) ).

fof(f7651,plain,
    ( ~ sQ630_spl
    | ~ sQ619_spl
    | sQ618_spl
    | ~ sQ11_spl ),
    inference(split_clause,[status(thm)],[f7632,f544,f7232,f7235,f7336]) ).

fof(f7778,definition,
    ( sQ646_spl
  <=> app(sK47_skl,nil) = sK47_skl ),
    introduced(definition,[new_symbols(definition,[sQ646_spl])],[split_symbol_definition]) ).

fof(f7779,plain,
    ( ~ sQ646_spl
    | app(sK47_skl,nil) = sK47_skl ),
    inference(component_clause,[status(thm)],[f7778]) ).

fof(f7780,plain,
    ( sQ646_spl
    | app(sK47_skl,nil) != sK47_skl ),
    inference(component_clause,[status(thm)],[f7778]) ).

fof(f7953,plain,
    ( ~ sQ618_spl
    | ~ sQ620_spl
    | nil = sK47_skl ),
    inference(forward_demodulation,[status(thm)],[f7240,f7233]) ).

fof(f7954,plain,
    ( ~ sQ618_spl
    | ~ sQ620_spl
    | sQ29_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f7953,f704]) ).

fof(f7955,plain,
    ( ~ sQ618_spl
    | ~ sQ620_spl
    | sQ29_spl ),
    inference(contradiction_clause,[status(thm)],[f7954]) ).

fof(f8011,plain,
    ( ~ sQ646_spl
    | ~ frontsegP(app(sK47_skl,nil),sK47_skl)
    | sK5_skl(sK47_skl,sK47_skl) = nil
    | ~ ssList(sK47_skl)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f7779,f7228]) ).

fof(f8021,plain,
    ( ~ sQ646_spl
    | ~ ssList(nil)
    | frontsegP(sK47_skl,sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(paramodulation,[status(thm)],[f7779,f656]) ).

fof(f8031,plain,
    ( ~ sQ646_spl
    | ~ sQ621_spl
    | sQ620_spl
    | ~ sQ11_spl
    | ~ sQ18_spl ),
    inference(split_clause,[status(thm)],[f8011,f594,f544,f7239,f7242,f7778]) ).

fof(f8041,plain,
    ( ~ sQ646_spl
    | ~ sQ18_spl
    | sQ259_spl
    | ~ sQ11_spl ),
    inference(split_clause,[status(thm)],[f8021,f544,f2826,f594,f7778]) ).

fof(f8064,plain,
    ( sQ646_spl
    | ~ ssList(sK47_skl) ),
    inference(resolution,[status(thm)],[f7780,f389]) ).

fof(f8065,plain,
    ( sQ646_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f8064,f419]) ).

fof(f8066,plain,
    sQ646_spl,
    inference(contradiction_clause,[status(thm)],[f8065]) ).

fof(f8240,plain,
    ( sQ621_spl
    | ~ sQ646_spl
    | ~ frontsegP(sK47_skl,sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f7779,f7244]) ).

fof(f8241,plain,
    ( sQ621_spl
    | ~ sQ646_spl
    | ~ sQ259_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f8240,f2827]) ).

fof(f8242,plain,
    ( sQ621_spl
    | ~ sQ646_spl
    | ~ sQ259_spl ),
    inference(contradiction_clause,[status(thm)],[f8241]) ).

fof(f9905,definition,
    ( sQ798_spl
  <=> frontsegP(sK47_skl,app(sK47_skl,sK47_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ798_spl])],[split_symbol_definition]) ).

fof(f9906,plain,
    ( ~ sQ798_spl
    | frontsegP(sK47_skl,app(sK47_skl,sK47_skl)) ),
    inference(component_clause,[status(thm)],[f9905]) ).

fof(f9923,plain,
    ( ~ sQ5_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | ~ sQ236_spl
    | app(app(app(nil,sK47_skl),sK47_skl),sK54_skl) = sK47_skl ),
    inference(forward_demodulation,[status(thm)],[f2469,f1877]) ).

fof(f9924,plain,
    ( ~ sQ5_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | ~ sQ236_spl
    | ~ sQ629_spl
    | app(app(sK47_skl,sK47_skl),sK54_skl) = sK47_skl ),
    inference(forward_demodulation,[status(thm)],[f7330,f9923]) ).

fof(f9993,plain,
    ( ~ sQ5_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | ~ sQ236_spl
    | ~ sQ629_spl
    | ~ ssList(sK54_skl)
    | frontsegP(sK47_skl,app(sK47_skl,sK47_skl))
    | ~ ssList(app(sK47_skl,sK47_skl)) ),
    inference(paramodulation,[status(thm)],[f9924,f656]) ).

fof(f10049,plain,
    ( ~ sQ5_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | ~ sQ236_spl
    | ~ sQ629_spl
    | ~ sQ10_spl
    | sQ798_spl
    | ~ sQ243_spl ),
    inference(split_clause,[status(thm)],[f9993,f2637,f9905,f541,f7329,f2468,f1417,f454,f509]) ).

fof(f10219,plain,
    ( ~ sQ798_spl
    | app(sK47_skl,sK47_skl) = sK47_skl
    | ~ frontsegP(app(sK47_skl,sK47_skl),sK47_skl)
    | ~ ssList(sK47_skl)
    | ~ ssList(app(sK47_skl,sK47_skl)) ),
    inference(resolution,[status(thm)],[f284,f9906]) ).

fof(f10232,plain,
    ( ~ sQ798_spl
    | sQ630_spl
    | ~ sQ619_spl
    | ~ sQ11_spl
    | ~ sQ243_spl ),
    inference(split_clause,[status(thm)],[f10219,f2637,f544,f7235,f7336,f9905]) ).

fof(f10462,plain,
    ( sQ619_spl
    | ~ ssList(sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(resolution,[status(thm)],[f7237,f656]) ).

fof(f10465,plain,
    ( sQ619_spl
    | ~ sQ11_spl ),
    inference(split_clause,[status(thm)],[f10462,f544,f7235]) ).

fof(f10920,plain,
    ( sQ278_spl
    | ~ frontsegP(sK53_skl,sK47_skl)
    | ~ ssList(sK47_skl)
    | ~ ssList(sK47_skl)
    | ~ ssList(sK53_skl) ),
    inference(resolution,[status(thm)],[f2972,f288]) ).

fof(f10922,plain,
    ( sQ278_spl
    | ~ sQ286_spl
    | ~ sQ11_spl
    | ~ sQ46_spl ),
    inference(split_clause,[status(thm)],[f10920,f952,f544,f3027,f2970]) ).

fof(f12384,plain,
    ( ~ sQ629_spl
    | ~ sQ299_spl
    | sK53_skl = nil
    | ~ ssList(nil) ),
    inference(resolution,[status(thm)],[f3176,f7330]) ).

fof(f12391,plain,
    ( ~ sQ629_spl
    | ~ sQ299_spl
    | sQ236_spl
    | ~ sQ18_spl ),
    inference(split_clause,[status(thm)],[f12384,f594,f2468,f3175,f7329]) ).

fof(f12532,plain,
    ( ~ sQ128_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | sK47_skl = app(app(sK53_skl,sK47_skl),app(cons(sK51_skl,nil),sK54_skl)) ),
    inference(forward_demodulation,[status(thm)],[f1522,f1472]) ).

fof(f12533,plain,
    ( ~ sQ128_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | sK47_skl = app(app(sK53_skl,sK47_skl),app(sK47_skl,sK54_skl)) ),
    inference(forward_demodulation,[status(thm)],[f1522,f12532]) ).

fof(f12541,plain,
    ( ~ sQ128_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | hd(sK47_skl) = hd(app(sK53_skl,sK47_skl))
    | nil = app(sK53_skl,sK47_skl)
    | ~ ssList(app(sK47_skl,sK54_skl))
    | ~ ssList(app(sK53_skl,sK47_skl)) ),
    inference(paramodulation,[status(thm)],[f12533,f391]) ).

fof(f12549,plain,
    ( ~ sQ128_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | ~ ssList(app(sK47_skl,sK54_skl))
    | frontsegP(sK47_skl,app(sK53_skl,sK47_skl))
    | ~ ssList(app(sK53_skl,sK47_skl)) ),
    inference(paramodulation,[status(thm)],[f12533,f656]) ).

fof(f12560,definition,
    ( sQ1040_spl
  <=> ssList(app(sK47_skl,sK54_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ1040_spl])],[split_symbol_definition]) ).

fof(f12562,plain,
    ( sQ1040_spl
    | ~ ssList(app(sK47_skl,sK54_skl)) ),
    inference(component_clause,[status(thm)],[f12560]) ).

fof(f12588,definition,
    ( sQ1047_spl
  <=> hd(sK47_skl) = hd(app(sK53_skl,sK47_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ1047_spl])],[split_symbol_definition]) ).

fof(f12589,plain,
    ( ~ sQ1047_spl
    | hd(sK47_skl) = hd(app(sK53_skl,sK47_skl)) ),
    inference(component_clause,[status(thm)],[f12588]) ).

fof(f12591,plain,
    ( ~ sQ128_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | sQ1047_spl
    | sQ235_spl
    | ~ sQ1040_spl
    | ~ sQ159_spl ),
    inference(split_clause,[status(thm)],[f12541,f1858,f12560,f2446,f12588,f1417,f454,f1471]) ).

fof(f12614,plain,
    ( ~ sQ128_spl
    | ~ sQ0_spl
    | ~ sQ123_spl
    | ~ sQ1040_spl
    | sQ274_spl
    | ~ sQ159_spl ),
    inference(split_clause,[status(thm)],[f12549,f1858,f2945,f12560,f1417,f454,f1471]) ).

fof(f12634,plain,
    ( ~ sQ1047_spl
    | ~ sQ118_spl
    | ~ sQ123_spl
    | sK51_skl = hd(app(sK53_skl,sK47_skl)) ),
    inference(forward_demodulation,[status(thm)],[f1767,f12589]) ).

fof(f13059,plain,
    ( sQ1040_spl
    | ~ ssList(sK54_skl)
    | ~ ssList(sK47_skl) ),
    inference(resolution,[status(thm)],[f12562,f245]) ).

fof(f13060,plain,
    ( sQ1040_spl
    | ~ sQ10_spl
    | ~ sQ11_spl ),
    inference(split_clause,[status(thm)],[f13059,f544,f541,f12560]) ).

fof(f14161,plain,
    ( ~ sQ1047_spl
    | ~ sQ118_spl
    | ~ sQ123_spl
    | sK51_skl = hd(sK53_skl)
    | nil = sK53_skl
    | ~ ssList(sK47_skl)
    | ~ ssList(sK53_skl) ),
    inference(paramodulation,[status(thm)],[f12634,f391]) ).

fof(f14168,definition,
    ( sQ1255_spl
  <=> sK51_skl = hd(sK53_skl) ),
    introduced(definition,[new_symbols(definition,[sQ1255_spl])],[split_symbol_definition]) ).

fof(f14169,plain,
    ( ~ sQ1255_spl
    | sK51_skl = hd(sK53_skl) ),
    inference(component_clause,[status(thm)],[f14168]) ).

fof(f14171,plain,
    ( ~ sQ1047_spl
    | ~ sQ118_spl
    | ~ sQ123_spl
    | sQ1255_spl
    | sQ236_spl
    | ~ sQ11_spl
    | ~ sQ46_spl ),
    inference(split_clause,[status(thm)],[f14161,f952,f544,f2468,f14168,f1417,f1348,f12588]) ).

fof(f14202,plain,
    ( ~ sQ1255_spl
    | cons(sK51_skl,tl(sK53_skl)) = sK53_skl
    | nil = sK53_skl
    | ~ ssList(sK53_skl) ),
    inference(paramodulation,[status(thm)],[f14169,f374]) ).

fof(f14208,definition,
    ( sQ1263_spl
  <=> cons(sK51_skl,tl(sK53_skl)) = sK53_skl ),
    introduced(definition,[new_symbols(definition,[sQ1263_spl])],[split_symbol_definition]) ).

fof(f14209,plain,
    ( ~ sQ1263_spl
    | cons(sK51_skl,tl(sK53_skl)) = sK53_skl ),
    inference(component_clause,[status(thm)],[f14208]) ).

fof(f14211,plain,
    ( ~ sQ1255_spl
    | sQ1263_spl
    | sQ236_spl
    | ~ sQ46_spl ),
    inference(split_clause,[status(thm)],[f14202,f952,f2468,f14208,f14168]) ).

fof(f14453,plain,
    ( ~ sQ1263_spl
    | ~ sQ310_spl
    | frontsegP(sK53_skl,sK47_skl)
    | ~ ssList(tl(sK53_skl)) ),
    inference(paramodulation,[status(thm)],[f14209,f3302]) ).

fof(f14493,definition,
    ( sQ1284_spl
  <=> ssList(tl(sK53_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ1284_spl])],[split_symbol_definition]) ).

fof(f14495,plain,
    ( sQ1284_spl
    | ~ ssList(tl(sK53_skl)) ),
    inference(component_clause,[status(thm)],[f14493]) ).

fof(f14496,plain,
    ( ~ sQ1263_spl
    | ~ sQ310_spl
    | sQ286_spl
    | ~ sQ1284_spl ),
    inference(split_clause,[status(thm)],[f14453,f14493,f3027,f3298,f14208]) ).

fof(f15186,plain,
    ( sQ1284_spl
    | nil = sK53_skl
    | ~ ssList(sK53_skl) ),
    inference(resolution,[status(thm)],[f14495,f241]) ).

fof(f15187,plain,
    ( sQ1284_spl
    | sQ236_spl
    | ~ sQ46_spl ),
    inference(split_clause,[status(thm)],[f15186,f952,f2468,f14493]) ).

fof(f15188,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f464,f512,f521,f547,f549,f554,f605,f624,f688,f708,f950,f955,f957,f964,f1351,f1409,f1420,f1474,f1631,f1658,f1965,f2477,f2490,f2776,f2976,f3178,f3301,f3676,f3707,f7438,f7651,f7955,f8031,f8041,f8066,f8242,f10049,f10232,f10465,f10922,f12391,f12591,f12614,f13060,f14171,f14211,f14496,f15187]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02  % Problem  : SWC173+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.03  % Command  : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.36  % Computer : n014.cluster.edu
% 0.10/0.36  % Model    : x86_64 x86_64
% 0.10/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36  % Memory   : 8046.5625MB
% 0.10/0.36  % OS       : Linux 6.8.0-71-generic
% 0.10/0.36  % CPULimit : 300
% 0.10/0.36  % WCLimit  : 300
% 0.10/0.36  % DateTime : Mon Sep 21 08:00:51 UTC 2026
% 0.10/0.37  % CPUTime  : 
% 0.12/0.38  % Drodi V4.1.1
% 53.88/7.22  % Refutation found
% 53.88/7.22  % SZS status Theorem for theBenchmark: Theorem is valid
% 53.88/7.22  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 53.88/7.27  % Elapsed time: 6.889098 seconds
% 53.88/7.27  % CPU time: 54.287783 seconds
% 53.88/7.27  % Total memory used: 388.906 MB
% 53.88/7.27  % Net memory used: 366.587 MB
%------------------------------------------------------------------------------