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Drodi---4.1.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : Drodi---4.1.1
% Problem  : SWC254+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -timeout(300) /export/starexec/sandbox/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 02:40:31 PM UTC 2026

% Result   : Theorem 0.09s 0.42s
% Output   : CNFRefutation 0.09s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :   66
% Syntax   : Number of formulae    :  270 (  25 unt;  50 def)
%            Number of atoms       :  908 ( 164 equ)
%            Maximal formula atoms :   14 (   3 avg)
%            Number of connectives : 1098 ( 460   ~; 447   |;  87   &)
%                                         (  62 <=>;  42  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   21 (   5 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :   59 (  57 usr;  50 prp; 0-4 aty)
%            Number of functors    :   16 (  16 usr;   7 con; 0-4 aty)
%            Number of variables   :  278 ( 245   !;  33   ?)

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

fof(f2,axiom,
    ? [U] :
      ( ? [V] :
          ( U != V
          & ssItem(V) )
      & ssItem(U) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f4,axiom,
    ! [U] :
      ( ssList(U)
     => ( singletonP(U)
      <=> ? [V] :
            ( cons(V,nil) = U
            & ssItem(V) ) ) ),
    file('/export/starexec/sandbox/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/sandbox/benchmark/theBenchmark.p') ).

fof(f6,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( rearsegP(U,V)
          <=> ? [W] :
                ( app(W,V) = U
                & ssList(W) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f7,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( segmentP(U,V)
          <=> ? [W] :
                ( ? [X] :
                    ( app(app(W,V),X) = U
                    & ssList(X) )
                & ssList(W) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f15,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( neq(U,V)
          <=> U != V ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

fof(f19,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssItem(W)
             => ! [X] :
                  ( ssItem(X)
                 => ( cons(W,U) = cons(X,V)
                   => ( V = U
                      & W = X ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

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

fof(f96,conjecture,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X] :
                  ( ssList(X)
                 => ( ( ( neq(X,nil)
                        | ~ neq(V,nil) )
                      & ( singletonP(U)
                        | ! [Y] :
                            ( ssItem(Y)
                           => ! [Z] :
                                ( ssList(Z)
                               => ( app(Z,cons(Y,nil)) != X
                                  | cons(Y,nil) != W ) ) )
                        | ~ neq(V,nil) ) )
                    | U != W
                    | V != X ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f97,negated_conjecture,
    ~ ! [U] :
        ( ssList(U)
       => ! [V] :
            ( ssList(V)
           => ! [W] :
                ( ssList(W)
               => ! [X] :
                    ( ssList(X)
                   => ( ( ( neq(X,nil)
                          | ~ neq(V,nil) )
                        & ( singletonP(U)
                          | ! [Y] :
                              ( ssItem(Y)
                             => ! [Z] :
                                  ( ssList(Z)
                                 => ( app(Z,cons(Y,nil)) != X
                                    | cons(Y,nil) != W ) ) )
                          | ~ neq(V,nil) ) )
                      | 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(f100,plain,
    ! [X0,X1] :
      ( X0 != X1
      | ~ neq(X0,X1)
      | ~ ssItem(X1)
      | ~ ssItem(X0) ),
    inference(cnf_transformation,[status(thm)],[f99]) ).

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

fof(f102,plain,
    ( sK0_skl != sK1_skl
    & ssItem(sK1_skl)
    & ssItem(sK0_skl) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK0_skl,sK1_skl]),skolemize(U,sK0_skl),skolemize(V,sK1_skl)],[f2]) ).

fof(f103,plain,
    ssItem(sK0_skl),
    inference(cnf_transformation,[status(thm)],[f102]) ).

fof(f104,plain,
    ssItem(sK1_skl),
    inference(cnf_transformation,[status(thm)],[f102]) ).

fof(f113,plain,
    ! [U] :
      ( ( singletonP(U)
      <=> ? [V] :
            ( cons(V,nil) = U
            & ssItem(V) ) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f4]) ).

fof(f114,plain,
    ! [U] :
      ( ( ( ! [V] :
              ( cons(V,nil) != U
              | ~ ssItem(V) )
          | singletonP(U) )
        & ( ? [V] :
              ( cons(V,nil) = U
              & ssItem(V) )
          | ~ singletonP(U) ) )
      | ~ ssList(U) ),
    inference(NNF_transformation,[status(thm)],[f113]) ).

fof(f115,plain,
    ! [U] :
      ( ( ( ! [V] :
              ( cons(V,nil) != U
              | ~ ssItem(V) )
          | singletonP(U) )
        & ( ( cons(sK4_skl(U),nil) = U
            & ssItem(sK4_skl(U)) )
          | ~ singletonP(U) ) )
      | ~ ssList(U) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK4_skl]),skolemize(V,sK4_skl(U))],[f114]) ).

fof(f118,plain,
    ! [X0,X1] :
      ( cons(X1,nil) != X0
      | ~ ssItem(X1)
      | singletonP(X0)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f115]) ).

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(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(f125,plain,
    ! [U] :
      ( ! [V] :
          ( ( rearsegP(U,V)
          <=> ? [W] :
                ( app(W,V) = U
                & ssList(W) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f6]) ).

fof(f126,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( app(W,V) != U
                  | ~ ssList(W) )
              | rearsegP(U,V) )
            & ( ? [W] :
                  ( app(W,V) = U
                  & ssList(W) )
              | ~ rearsegP(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(NNF_transformation,[status(thm)],[f125]) ).

fof(f127,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( app(W,V) != U
                  | ~ ssList(W) )
              | rearsegP(U,V) )
            & ( ( app(sK6_skl(V,U),V) = U
                & ssList(sK6_skl(V,U)) )
              | ~ rearsegP(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK6_skl]),skolemize(W,sK6_skl(V,U))],[f126]) ).

fof(f130,plain,
    ! [X0,X1,X2] :
      ( app(X2,X1) != X0
      | ~ ssList(X2)
      | rearsegP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f127]) ).

fof(f131,plain,
    ! [U] :
      ( ! [V] :
          ( ( segmentP(U,V)
          <=> ? [W] :
                ( ? [X] :
                    ( app(app(W,V),X) = U
                    & ssList(X) )
                & ssList(W) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f7]) ).

fof(f132,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( ! [X] :
                      ( app(app(W,V),X) != U
                      | ~ ssList(X) )
                  | ~ ssList(W) )
              | segmentP(U,V) )
            & ( ? [W] :
                  ( ? [X] :
                      ( app(app(W,V),X) = U
                      & ssList(X) )
                  & ssList(W) )
              | ~ segmentP(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(NNF_transformation,[status(thm)],[f131]) ).

fof(f133,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( ! [X] :
                      ( app(app(W,V),X) != U
                      | ~ ssList(X) )
                  | ~ ssList(W) )
              | segmentP(U,V) )
            & ( ( app(app(sK7_skl(V,U),V),sK8_skl(V,U)) = U
                & ssList(sK8_skl(V,U))
                & ssList(sK7_skl(V,U)) )
              | ~ segmentP(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK7_skl,sK8_skl]),skolemize(W,sK7_skl(V,U)),skolemize(X,sK8_skl(V,U))],[f132]) ).

fof(f137,plain,
    ! [X0,X1,X2,X3] :
      ( app(app(X2,X1),X3) != X0
      | ~ ssList(X3)
      | ~ ssList(X2)
      | segmentP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f133]) ).

fof(f217,plain,
    ! [U] :
      ( ! [V] :
          ( ( neq(U,V)
          <=> U != V )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f15]) ).

fof(f218,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( U = V
              | neq(U,V) )
            & ( U != V
              | ~ neq(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(NNF_transformation,[status(thm)],[f217]) ).

fof(f219,plain,
    ! [X0,X1] :
      ( X0 != X1
      | ~ neq(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f218]) ).

fof(f220,plain,
    ! [X0,X1] :
      ( X0 = X1
      | neq(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f218]) ).

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(f226,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( ! [X] :
                  ( ( V = U
                    & W = X )
                  | cons(W,U) != cons(X,V)
                  | ~ ssItem(X) )
              | ~ ssItem(W) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f19]) ).

fof(f227,plain,
    ! [X0,X1,X2,X3] :
      ( X2 = X3
      | cons(X2,X0) != cons(X3,X1)
      | ~ ssItem(X3)
      | ~ ssItem(X2)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f226]) ).

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(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(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(f415,plain,
    ? [U] :
      ( ? [V] :
          ( ? [W] :
              ( ? [X] :
                  ( ( ( ~ neq(X,nil)
                      & neq(V,nil) )
                    | ( ~ singletonP(U)
                      & ? [Y] :
                          ( ? [Z] :
                              ( app(Z,cons(Y,nil)) = X
                              & cons(Y,nil) = W
                              & ssList(Z) )
                          & ssItem(Y) )
                      & neq(V,nil) ) )
                  & U = W
                  & V = X
                  & ssList(X) )
              & ssList(W) )
          & ssList(V) )
      & ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f97]) ).

fof(f416,definition,
    ! [U,V,W,X] :
      ( sP0_prd(X,W,V,U)
    <=> ( ~ singletonP(U)
        & ? [Y] :
            ( ? [Z] :
                ( app(Z,cons(Y,nil)) = X
                & cons(Y,nil) = W
                & ssList(Z) )
            & ssItem(Y) )
        & neq(V,nil) ) ),
    introduced(definition,[new_symbols(definition,[sP0_prd])],[]) ).

fof(f417,plain,
    ? [U] :
      ( ? [V] :
          ( ? [W] :
              ( ? [X] :
                  ( ( ( ~ neq(X,nil)
                      & neq(V,nil) )
                    | sP0_prd(X,W,V,U) )
                  & U = W
                  & V = X
                  & ssList(X) )
              & ssList(W) )
          & ssList(V) )
      & ssList(U) ),
    inference(formula_renaming,[status(thm)],[f415,f416]) ).

fof(f418,plain,
    ( ( ( ~ neq(sK50_skl,nil)
        & neq(sK48_skl,nil) )
      | sP0_prd(sK50_skl,sK49_skl,sK48_skl,sK47_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]),skolemize(U,sK47_skl),skolemize(V,sK48_skl),skolemize(W,sK49_skl),skolemize(X,sK50_skl)],[f417]) ).

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

fof(f420,plain,
    ssList(sK48_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,
    ( neq(sK48_skl,nil)
    | sP0_prd(sK50_skl,sK49_skl,sK48_skl,sK47_skl) ),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f426,plain,
    ( ~ neq(sK50_skl,nil)
    | sP0_prd(sK50_skl,sK49_skl,sK48_skl,sK47_skl) ),
    inference(cnf_transformation,[status(thm)],[f418]) ).

fof(f427,plain,
    ! [U,V,W,X] :
      ( ( singletonP(U)
        | ! [Y] :
            ( ! [Z] :
                ( app(Z,cons(Y,nil)) != X
                | cons(Y,nil) != W
                | ~ ssList(Z) )
            | ~ ssItem(Y) )
        | ~ neq(V,nil)
        | sP0_prd(X,W,V,U) )
      & ( ( ~ singletonP(U)
          & ? [Y] :
              ( ? [Z] :
                  ( app(Z,cons(Y,nil)) = X
                  & cons(Y,nil) = W
                  & ssList(Z) )
              & ssItem(Y) )
          & neq(V,nil) )
        | ~ sP0_prd(X,W,V,U) ) ),
    inference(NNF_transformation,[status(thm)],[f416]) ).

fof(f428,plain,
    ( ! [U,V,W,X] :
        ( singletonP(U)
        | ! [Y] :
            ( ! [Z] :
                ( app(Z,cons(Y,nil)) != X
                | cons(Y,nil) != W
                | ~ ssList(Z) )
            | ~ ssItem(Y) )
        | ~ neq(V,nil)
        | sP0_prd(X,W,V,U) )
    & ! [U,V,W,X] :
        ( ( ~ singletonP(U)
          & ? [Y] :
              ( ? [Z] :
                  ( app(Z,cons(Y,nil)) = X
                  & cons(Y,nil) = W
                  & ssList(Z) )
              & ssItem(Y) )
          & neq(V,nil) )
        | ~ sP0_prd(X,W,V,U) ) ),
    inference(miniscoping,[status(thm)],[f427]) ).

fof(f429,plain,
    ( ! [U,V,W,X] :
        ( singletonP(U)
        | ! [Y] :
            ( ! [Z] :
                ( app(Z,cons(Y,nil)) != X
                | cons(Y,nil) != W
                | ~ ssList(Z) )
            | ~ ssItem(Y) )
        | ~ neq(V,nil)
        | sP0_prd(X,W,V,U) )
    & ! [U,V,W,X] :
        ( ( ~ singletonP(U)
          & app(sK52_skl(X,W,V,U),cons(sK51_skl(X,W,V,U),nil)) = X
          & cons(sK51_skl(X,W,V,U),nil) = W
          & ssList(sK52_skl(X,W,V,U))
          & ssItem(sK51_skl(X,W,V,U))
          & neq(V,nil) )
        | ~ sP0_prd(X,W,V,U) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK51_skl,sK52_skl]),skolemize(Y,sK51_skl(X,W,V,U)),skolemize(Z,sK52_skl(X,W,V,U))],[f428]) ).

fof(f431,plain,
    ! [X0,X1,X2,X3] :
      ( ssItem(sK51_skl(X0,X1,X2,X3))
      | ~ sP0_prd(X0,X1,X2,X3) ),
    inference(cnf_transformation,[status(thm)],[f429]) ).

fof(f433,plain,
    ! [X0,X1,X2,X3] :
      ( cons(sK51_skl(X0,X1,X2,X3),nil) = X1
      | ~ sP0_prd(X0,X1,X2,X3) ),
    inference(cnf_transformation,[status(thm)],[f429]) ).

fof(f435,plain,
    ! [X0,X1,X2,X3] :
      ( ~ singletonP(X3)
      | ~ sP0_prd(X0,X1,X2,X3) ),
    inference(cnf_transformation,[status(thm)],[f429]) ).

fof(f437,definition,
    ( sQ0_spl
  <=> sP0_prd(sK50_skl,sK49_skl,sK48_skl,sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).

fof(f438,plain,
    ( ~ sQ0_spl
    | sP0_prd(sK50_skl,sK49_skl,sK48_skl,sK47_skl) ),
    inference(component_clause,[status(thm)],[f437]) ).

fof(f440,definition,
    ( sQ1_spl
  <=> neq(sK48_skl,nil) ),
    introduced(definition,[new_symbols(definition,[sQ1_spl])],[split_symbol_definition]) ).

fof(f441,plain,
    ( ~ sQ1_spl
    | neq(sK48_skl,nil) ),
    inference(component_clause,[status(thm)],[f440]) ).

fof(f443,plain,
    ( sQ1_spl
    | sQ0_spl ),
    inference(split_clause,[status(thm)],[f425,f437,f440]) ).

fof(f444,definition,
    ( sQ2_spl
  <=> neq(sK50_skl,nil) ),
    introduced(definition,[new_symbols(definition,[sQ2_spl])],[split_symbol_definition]) ).

fof(f446,plain,
    ( sQ2_spl
    | ~ neq(sK50_skl,nil) ),
    inference(component_clause,[status(thm)],[f444]) ).

fof(f447,plain,
    ( ~ sQ2_spl
    | sQ0_spl ),
    inference(split_clause,[status(thm)],[f426,f437,f444]) ).

fof(f448,plain,
    ! [X1] :
      ( ~ neq(X1,X1)
      | ~ ssItem(X1)
      | ~ ssItem(X1) ),
    inference(destructive_equality_resolution,[status(thm)],[f100]) ).

fof(f449,plain,
    ! [X0] :
      ( ~ neq(X0,X0)
      | ~ ssItem(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f448]) ).

fof(f451,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | singletonP(cons(X0,nil))
      | ~ ssList(cons(X0,nil)) ),
    inference(destructive_equality_resolution,[status(thm)],[f118]) ).

fof(f452,plain,
    ! [X0,X1] :
      ( ~ ssList(X1)
      | frontsegP(app(X0,X1),X0)
      | ~ ssList(X0)
      | ~ ssList(app(X0,X1)) ),
    inference(destructive_equality_resolution,[status(thm)],[f124]) ).

fof(f453,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | rearsegP(app(X0,X1),X1)
      | ~ ssList(X1)
      | ~ ssList(app(X0,X1)) ),
    inference(destructive_equality_resolution,[status(thm)],[f130]) ).

fof(f454,plain,
    ! [X0,X1,X2] :
      ( ~ ssList(X2)
      | ~ ssList(X0)
      | segmentP(app(app(X0,X1),X2),X1)
      | ~ ssList(X1)
      | ~ ssList(app(app(X0,X1),X2)) ),
    inference(destructive_equality_resolution,[status(thm)],[f137]) ).

fof(f463,plain,
    ! [X1] :
      ( ~ neq(X1,X1)
      | ~ ssList(X1)
      | ~ ssList(X1) ),
    inference(destructive_equality_resolution,[status(thm)],[f219]) ).

fof(f464,plain,
    ! [X0] :
      ( ~ neq(X0,X0)
      | ~ ssList(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f463]) ).

fof(f480,plain,
    ! [X0] :
      ( X0 = sK0_skl
      | neq(X0,sK0_skl)
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f103,f101]) ).

fof(f481,plain,
    ~ neq(sK0_skl,sK0_skl),
    inference(resolution,[status(thm)],[f103,f449]) ).

fof(f482,plain,
    ! [X0] :
      ( X0 = sK1_skl
      | neq(X0,sK1_skl)
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f104,f101]) ).

fof(f483,plain,
    ~ neq(sK1_skl,sK1_skl),
    inference(resolution,[status(thm)],[f104,f449]) ).

fof(f493,plain,
    ~ neq(nil,nil),
    inference(resolution,[status(thm)],[f464,f223]) ).

fof(f494,plain,
    ~ neq(sK48_skl,sK48_skl),
    inference(resolution,[status(thm)],[f464,f420]) ).

fof(f495,plain,
    ~ neq(sK47_skl,sK47_skl),
    inference(resolution,[status(thm)],[f464,f419]) ).

fof(f497,plain,
    ! [X0,X1,X2,X3] :
      ( ~ sP0_prd(X1,X2,X3,cons(X0,nil))
      | ~ ssItem(X0)
      | ~ ssList(cons(X0,nil)) ),
    inference(resolution,[status(thm)],[f451,f435]) ).

fof(f500,plain,
    ! [X0] :
      ( X0 = nil
      | neq(X0,nil)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f220,f223]) ).

fof(f501,plain,
    ! [X0] :
      ( X0 = sK48_skl
      | neq(X0,sK48_skl)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f220,f420]) ).

fof(f502,plain,
    ! [X0] :
      ( X0 = sK47_skl
      | neq(X0,sK47_skl)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f220,f419]) ).

fof(f507,plain,
    ( ~ sQ0_spl
    | sP0_prd(sK48_skl,sK49_skl,sK48_skl,sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f423,f438]) ).

fof(f508,plain,
    ( ~ sQ0_spl
    | sP0_prd(sK48_skl,sK47_skl,sK48_skl,sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f424,f507]) ).

fof(f513,plain,
    app(nil,nil) = nil,
    inference(resolution,[status(thm)],[f249,f223]) ).

fof(f514,plain,
    app(nil,sK48_skl) = sK48_skl,
    inference(resolution,[status(thm)],[f249,f420]) ).

fof(f515,plain,
    app(nil,sK47_skl) = sK47_skl,
    inference(resolution,[status(thm)],[f249,f419]) ).

fof(f549,plain,
    ( ~ ssList(sK47_skl)
    | frontsegP(app(nil,sK47_skl),nil)
    | ~ ssList(nil)
    | ~ ssList(sK47_skl) ),
    inference(paramodulation,[status(thm)],[f515,f452]) ).

fof(f550,plain,
    ( ~ ssList(sK48_skl)
    | frontsegP(app(nil,sK48_skl),nil)
    | ~ ssList(nil)
    | ~ ssList(sK48_skl) ),
    inference(paramodulation,[status(thm)],[f514,f452]) ).

fof(f551,plain,
    ( ~ ssList(nil)
    | frontsegP(app(nil,nil),nil)
    | ~ ssList(nil)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f513,f452]) ).

fof(f552,definition,
    ( sQ3_spl
  <=> ssList(sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ3_spl])],[split_symbol_definition]) ).

fof(f554,plain,
    ( sQ3_spl
    | ~ ssList(sK47_skl) ),
    inference(component_clause,[status(thm)],[f552]) ).

fof(f555,definition,
    ( sQ4_spl
  <=> ssList(nil) ),
    introduced(definition,[new_symbols(definition,[sQ4_spl])],[split_symbol_definition]) ).

fof(f557,plain,
    ( sQ4_spl
    | ~ ssList(nil) ),
    inference(component_clause,[status(thm)],[f555]) ).

fof(f558,definition,
    ( sQ5_spl
  <=> frontsegP(app(nil,sK47_skl),nil) ),
    introduced(definition,[new_symbols(definition,[sQ5_spl])],[split_symbol_definition]) ).

fof(f561,plain,
    ( sQ5_spl
    | ~ sQ4_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f549,f552,f555,f558]) ).

fof(f562,definition,
    ( sQ6_spl
  <=> ssList(sK48_skl) ),
    introduced(definition,[new_symbols(definition,[sQ6_spl])],[split_symbol_definition]) ).

fof(f564,plain,
    ( sQ6_spl
    | ~ ssList(sK48_skl) ),
    inference(component_clause,[status(thm)],[f562]) ).

fof(f565,definition,
    ( sQ7_spl
  <=> frontsegP(app(nil,sK48_skl),nil) ),
    introduced(definition,[new_symbols(definition,[sQ7_spl])],[split_symbol_definition]) ).

fof(f568,plain,
    ( sQ7_spl
    | ~ sQ4_spl
    | ~ sQ6_spl ),
    inference(split_clause,[status(thm)],[f550,f562,f555,f565]) ).

fof(f569,definition,
    ( sQ8_spl
  <=> frontsegP(app(nil,nil),nil) ),
    introduced(definition,[new_symbols(definition,[sQ8_spl])],[split_symbol_definition]) ).

fof(f572,plain,
    ( sQ8_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f551,f555,f569]) ).

fof(f573,plain,
    ( sQ4_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f557,f223]) ).

fof(f574,plain,
    sQ4_spl,
    inference(contradiction_clause,[status(thm)],[f573]) ).

fof(f576,plain,
    ( sQ3_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f554,f419]) ).

fof(f577,plain,
    sQ3_spl,
    inference(contradiction_clause,[status(thm)],[f576]) ).

fof(f578,plain,
    ( sQ6_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f564,f420]) ).

fof(f579,plain,
    sQ6_spl,
    inference(contradiction_clause,[status(thm)],[f578]) ).

fof(f595,plain,
    app(sK48_skl,nil) = sK48_skl,
    inference(resolution,[status(thm)],[f389,f420]) ).

fof(f596,plain,
    app(sK47_skl,nil) = sK47_skl,
    inference(resolution,[status(thm)],[f389,f419]) ).

fof(f597,plain,
    ( ~ ssList(nil)
    | frontsegP(app(sK48_skl,nil),sK48_skl)
    | ~ ssList(sK48_skl)
    | ~ ssList(sK48_skl) ),
    inference(paramodulation,[status(thm)],[f595,f452]) ).

fof(f598,definition,
    ( sQ9_spl
  <=> frontsegP(app(sK48_skl,nil),sK48_skl) ),
    introduced(definition,[new_symbols(definition,[sQ9_spl])],[split_symbol_definition]) ).

fof(f601,plain,
    ( ~ sQ4_spl
    | sQ9_spl
    | ~ sQ6_spl ),
    inference(split_clause,[status(thm)],[f597,f562,f598,f555]) ).

fof(f603,plain,
    ( ~ ssList(nil)
    | frontsegP(app(sK47_skl,nil),sK47_skl)
    | ~ ssList(sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(paramodulation,[status(thm)],[f596,f452]) ).

fof(f604,definition,
    ( sQ10_spl
  <=> frontsegP(app(sK47_skl,nil),sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ10_spl])],[split_symbol_definition]) ).

fof(f607,plain,
    ( ~ sQ4_spl
    | sQ10_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f603,f552,f604,f555]) ).

fof(f609,plain,
    ! [X0,X1] :
      ( X1 = X1
      | ~ ssItem(X1)
      | ~ ssItem(X1)
      | ~ ssList(X0)
      | ~ ssList(X0) ),
    inference(equality_resolution,[status(thm)],[f227]) ).

fof(f610,definition,
    ! [X0] :
      ( sQ11_spl
    <=> ( ~ ssList(X0)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ11_spl])],[split_symbol_definition]) ).

fof(f611,plain,
    ! [X0] :
      ( ~ sQ11_spl
      | ~ ssList(X0)
      | ~ ssList(X0) ),
    inference(component_clause,[status(thm)],[f610]) ).

fof(f613,definition,
    ! [X1] :
      ( sQ12_spl
    <=> ( X1 = X1
        | ~ ssItem(X1)
        | ~ ssItem(X1) ) ),
    introduced(definition,[new_symbols(definition,[sQ12_spl])],[split_symbol_definition]) ).

fof(f616,plain,
    ( sQ12_spl
    | sQ11_spl ),
    inference(split_clause,[status(thm)],[f609,f610,f613]) ).

fof(f617,plain,
    ! [X0] :
      ( ~ sQ11_spl
      | ~ ssList(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f611]) ).

fof(f627,plain,
    ( ~ sQ11_spl
    | $false ),
    inference(backward_subsumption_resolution,[status(thm)],[f223,f617]) ).

fof(f630,plain,
    ~ sQ11_spl,
    inference(contradiction_clause,[status(thm)],[f627]) ).

fof(f639,plain,
    ( ~ ssList(sK47_skl)
    | rearsegP(app(sK47_skl,nil),nil)
    | ~ ssList(nil)
    | ~ ssList(sK47_skl) ),
    inference(paramodulation,[status(thm)],[f596,f453]) ).

fof(f640,plain,
    ( ~ ssList(sK48_skl)
    | rearsegP(app(sK48_skl,nil),nil)
    | ~ ssList(nil)
    | ~ ssList(sK48_skl) ),
    inference(paramodulation,[status(thm)],[f595,f453]) ).

fof(f641,plain,
    ( ~ ssList(nil)
    | rearsegP(app(nil,sK47_skl),sK47_skl)
    | ~ ssList(sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(paramodulation,[status(thm)],[f515,f453]) ).

fof(f642,plain,
    ( ~ ssList(nil)
    | rearsegP(app(nil,sK48_skl),sK48_skl)
    | ~ ssList(sK48_skl)
    | ~ ssList(sK48_skl) ),
    inference(paramodulation,[status(thm)],[f514,f453]) ).

fof(f643,plain,
    ( ~ ssList(nil)
    | rearsegP(app(nil,nil),nil)
    | ~ ssList(nil)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f513,f453]) ).

fof(f644,definition,
    ( sQ15_spl
  <=> rearsegP(app(sK47_skl,nil),nil) ),
    introduced(definition,[new_symbols(definition,[sQ15_spl])],[split_symbol_definition]) ).

fof(f647,plain,
    ( sQ15_spl
    | ~ sQ4_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f639,f552,f555,f644]) ).

fof(f648,definition,
    ( sQ16_spl
  <=> rearsegP(app(sK48_skl,nil),nil) ),
    introduced(definition,[new_symbols(definition,[sQ16_spl])],[split_symbol_definition]) ).

fof(f651,plain,
    ( sQ16_spl
    | ~ sQ4_spl
    | ~ sQ6_spl ),
    inference(split_clause,[status(thm)],[f640,f562,f555,f648]) ).

fof(f652,definition,
    ( sQ17_spl
  <=> rearsegP(app(nil,sK47_skl),sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ17_spl])],[split_symbol_definition]) ).

fof(f655,plain,
    ( ~ sQ4_spl
    | sQ17_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f641,f552,f652,f555]) ).

fof(f656,definition,
    ( sQ18_spl
  <=> rearsegP(app(nil,sK48_skl),sK48_skl) ),
    introduced(definition,[new_symbols(definition,[sQ18_spl])],[split_symbol_definition]) ).

fof(f659,plain,
    ( ~ sQ4_spl
    | sQ18_spl
    | ~ sQ6_spl ),
    inference(split_clause,[status(thm)],[f642,f562,f656,f555]) ).

fof(f660,definition,
    ( sQ19_spl
  <=> rearsegP(app(nil,nil),nil) ),
    introduced(definition,[new_symbols(definition,[sQ19_spl])],[split_symbol_definition]) ).

fof(f663,plain,
    ( sQ19_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f643,f555,f660]) ).

fof(f669,plain,
    ( ~ sQ0_spl
    | cons(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl),nil) = sK47_skl ),
    inference(resolution,[status(thm)],[f433,f508]) ).

fof(f670,plain,
    ! [X0,X1] :
      ( ~ ssList(X1)
      | rearsegP(app(X1,X0),X0)
      | ~ ssList(X0) ),
    inference(backward_subsumption_resolution,[status(thm)],[f453,f245]) ).

fof(f733,plain,
    ! [X0] :
      ( sK47_skl = X0
      | sK47_skl != app(X0,nil)
      | ~ ssList(sK47_skl)
      | ~ ssList(nil)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f596,f376]) ).

fof(f734,plain,
    ! [X0] :
      ( sK48_skl = X0
      | sK48_skl != app(X0,nil)
      | ~ ssList(sK48_skl)
      | ~ ssList(nil)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f595,f376]) ).

fof(f735,plain,
    ! [X0] :
      ( nil = X0
      | sK47_skl != app(X0,sK47_skl)
      | ~ ssList(nil)
      | ~ ssList(sK47_skl)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f515,f376]) ).

fof(f736,plain,
    ! [X0] :
      ( nil = X0
      | sK48_skl != app(X0,sK48_skl)
      | ~ ssList(nil)
      | ~ ssList(sK48_skl)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f514,f376]) ).

fof(f737,plain,
    ! [X0] :
      ( nil = X0
      | nil != app(X0,nil)
      | ~ ssList(nil)
      | ~ ssList(nil)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f513,f376]) ).

fof(f744,definition,
    ! [X0] :
      ( sQ20_spl
    <=> ( sK47_skl = X0
        | sK47_skl != app(X0,nil)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ20_spl])],[split_symbol_definition]) ).

fof(f747,plain,
    ( ~ sQ3_spl
    | ~ sQ4_spl
    | sQ20_spl ),
    inference(split_clause,[status(thm)],[f733,f744,f555,f552]) ).

fof(f748,definition,
    ! [X0] :
      ( sQ21_spl
    <=> ( sK48_skl = X0
        | sK48_skl != app(X0,nil)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ21_spl])],[split_symbol_definition]) ).

fof(f751,plain,
    ( ~ sQ6_spl
    | ~ sQ4_spl
    | sQ21_spl ),
    inference(split_clause,[status(thm)],[f734,f748,f555,f562]) ).

fof(f752,definition,
    ! [X0] :
      ( sQ22_spl
    <=> ( nil = X0
        | sK47_skl != app(X0,sK47_skl)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ22_spl])],[split_symbol_definition]) ).

fof(f755,plain,
    ( ~ sQ4_spl
    | ~ sQ3_spl
    | sQ22_spl ),
    inference(split_clause,[status(thm)],[f735,f752,f552,f555]) ).

fof(f756,definition,
    ! [X0] :
      ( sQ23_spl
    <=> ( nil = X0
        | sK48_skl != app(X0,sK48_skl)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ23_spl])],[split_symbol_definition]) ).

fof(f759,plain,
    ( ~ sQ4_spl
    | ~ sQ6_spl
    | sQ23_spl ),
    inference(split_clause,[status(thm)],[f736,f756,f562,f555]) ).

fof(f760,definition,
    ! [X0] :
      ( sQ24_spl
    <=> ( nil = X0
        | nil != app(X0,nil)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ24_spl])],[split_symbol_definition]) ).

fof(f763,plain,
    ( ~ sQ4_spl
    | sQ24_spl ),
    inference(split_clause,[status(thm)],[f737,f760,f555]) ).

fof(f784,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ ssList(sK47_skl)
      | segmentP(app(app(sK47_skl,nil),X0),nil)
      | ~ ssList(nil)
      | ~ ssList(app(sK47_skl,X0)) ),
    inference(paramodulation,[status(thm)],[f596,f454]) ).

fof(f785,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ ssList(sK48_skl)
      | segmentP(app(app(sK48_skl,nil),X0),nil)
      | ~ ssList(nil)
      | ~ ssList(app(sK48_skl,X0)) ),
    inference(paramodulation,[status(thm)],[f595,f454]) ).

fof(f786,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ ssList(nil)
      | segmentP(app(app(nil,sK47_skl),X0),sK47_skl)
      | ~ ssList(sK47_skl)
      | ~ ssList(app(sK47_skl,X0)) ),
    inference(paramodulation,[status(thm)],[f515,f454]) ).

fof(f787,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ ssList(nil)
      | segmentP(app(app(nil,sK48_skl),X0),sK48_skl)
      | ~ ssList(sK48_skl)
      | ~ ssList(app(sK48_skl,X0)) ),
    inference(paramodulation,[status(thm)],[f514,f454]) ).

fof(f788,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ ssList(nil)
      | segmentP(app(app(nil,nil),X0),nil)
      | ~ ssList(nil)
      | ~ ssList(app(nil,X0)) ),
    inference(paramodulation,[status(thm)],[f513,f454]) ).

fof(f791,definition,
    ! [X0] :
      ( sQ26_spl
    <=> ( ~ ssList(X0)
        | segmentP(app(app(sK47_skl,nil),X0),nil)
        | ~ ssList(app(sK47_skl,X0)) ) ),
    introduced(definition,[new_symbols(definition,[sQ26_spl])],[split_symbol_definition]) ).

fof(f794,plain,
    ( ~ sQ3_spl
    | ~ sQ4_spl
    | sQ26_spl ),
    inference(split_clause,[status(thm)],[f784,f791,f555,f552]) ).

fof(f795,definition,
    ! [X0] :
      ( sQ27_spl
    <=> ( ~ ssList(X0)
        | segmentP(app(app(sK48_skl,nil),X0),nil)
        | ~ ssList(app(sK48_skl,X0)) ) ),
    introduced(definition,[new_symbols(definition,[sQ27_spl])],[split_symbol_definition]) ).

fof(f798,plain,
    ( ~ sQ6_spl
    | ~ sQ4_spl
    | sQ27_spl ),
    inference(split_clause,[status(thm)],[f785,f795,f555,f562]) ).

fof(f799,definition,
    ! [X0] :
      ( sQ28_spl
    <=> ( ~ ssList(X0)
        | segmentP(app(app(nil,sK47_skl),X0),sK47_skl)
        | ~ ssList(app(sK47_skl,X0)) ) ),
    introduced(definition,[new_symbols(definition,[sQ28_spl])],[split_symbol_definition]) ).

fof(f802,plain,
    ( ~ sQ4_spl
    | ~ sQ3_spl
    | sQ28_spl ),
    inference(split_clause,[status(thm)],[f786,f799,f552,f555]) ).

fof(f803,definition,
    ! [X0] :
      ( sQ29_spl
    <=> ( ~ ssList(X0)
        | segmentP(app(app(nil,sK48_skl),X0),sK48_skl)
        | ~ ssList(app(sK48_skl,X0)) ) ),
    introduced(definition,[new_symbols(definition,[sQ29_spl])],[split_symbol_definition]) ).

fof(f806,plain,
    ( ~ sQ4_spl
    | ~ sQ6_spl
    | sQ29_spl ),
    inference(split_clause,[status(thm)],[f787,f803,f562,f555]) ).

fof(f807,definition,
    ! [X0] :
      ( sQ30_spl
    <=> ( ~ ssList(X0)
        | segmentP(app(app(nil,nil),X0),nil)
        | ~ ssList(app(nil,X0)) ) ),
    introduced(definition,[new_symbols(definition,[sQ30_spl])],[split_symbol_definition]) ).

fof(f810,plain,
    ( ~ sQ4_spl
    | sQ30_spl ),
    inference(split_clause,[status(thm)],[f788,f807,f555]) ).

fof(f821,plain,
    ( sK48_skl = sK48_skl
    | ~ ssList(sK48_skl) ),
    inference(resolution,[status(thm)],[f501,f494]) ).

fof(f822,definition,
    ( sQ31_spl
  <=> sK48_skl = sK48_skl ),
    introduced(definition,[new_symbols(definition,[sQ31_spl])],[split_symbol_definition]) ).

fof(f825,plain,
    ( sQ31_spl
    | ~ sQ6_spl ),
    inference(split_clause,[status(thm)],[f821,f562,f822]) ).

fof(f826,plain,
    ( sK47_skl = sK47_skl
    | ~ ssList(sK47_skl) ),
    inference(resolution,[status(thm)],[f502,f495]) ).

fof(f827,definition,
    ( sQ32_spl
  <=> sK47_skl = sK47_skl ),
    introduced(definition,[new_symbols(definition,[sQ32_spl])],[split_symbol_definition]) ).

fof(f830,plain,
    ( sQ32_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f826,f552,f827]) ).

fof(f832,plain,
    ( sK0_skl = sK0_skl
    | ~ ssItem(sK0_skl) ),
    inference(resolution,[status(thm)],[f480,f481]) ).

fof(f833,definition,
    ( sQ33_spl
  <=> ssItem(sK0_skl) ),
    introduced(definition,[new_symbols(definition,[sQ33_spl])],[split_symbol_definition]) ).

fof(f835,plain,
    ( sQ33_spl
    | ~ ssItem(sK0_skl) ),
    inference(component_clause,[status(thm)],[f833]) ).

fof(f836,definition,
    ( sQ34_spl
  <=> sK0_skl = sK0_skl ),
    introduced(definition,[new_symbols(definition,[sQ34_spl])],[split_symbol_definition]) ).

fof(f839,plain,
    ( sQ34_spl
    | ~ sQ33_spl ),
    inference(split_clause,[status(thm)],[f832,f833,f836]) ).

fof(f840,plain,
    ( sQ33_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f835,f103]) ).

fof(f841,plain,
    sQ33_spl,
    inference(contradiction_clause,[status(thm)],[f840]) ).

fof(f842,plain,
    ( sK1_skl = sK1_skl
    | ~ ssItem(sK1_skl) ),
    inference(resolution,[status(thm)],[f482,f483]) ).

fof(f843,definition,
    ( sQ35_spl
  <=> ssItem(sK1_skl) ),
    introduced(definition,[new_symbols(definition,[sQ35_spl])],[split_symbol_definition]) ).

fof(f845,plain,
    ( sQ35_spl
    | ~ ssItem(sK1_skl) ),
    inference(component_clause,[status(thm)],[f843]) ).

fof(f846,definition,
    ( sQ36_spl
  <=> sK1_skl = sK1_skl ),
    introduced(definition,[new_symbols(definition,[sQ36_spl])],[split_symbol_definition]) ).

fof(f849,plain,
    ( sQ36_spl
    | ~ sQ35_spl ),
    inference(split_clause,[status(thm)],[f842,f843,f846]) ).

fof(f850,plain,
    ( sQ35_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f845,f104]) ).

fof(f851,plain,
    sQ35_spl,
    inference(contradiction_clause,[status(thm)],[f850]) ).

fof(f852,plain,
    ( nil = nil
    | ~ ssList(nil) ),
    inference(resolution,[status(thm)],[f500,f493]) ).

fof(f854,definition,
    ( sQ37_spl
  <=> nil = nil ),
    introduced(definition,[new_symbols(definition,[sQ37_spl])],[split_symbol_definition]) ).

fof(f857,plain,
    ( sQ37_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f852,f555,f854]) ).

fof(f865,plain,
    ! [X0] :
      ( nil = X0
      | sK47_skl != app(sK47_skl,X0)
      | ~ ssList(nil)
      | ~ ssList(sK47_skl)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f596,f378]) ).

fof(f866,plain,
    ! [X0] :
      ( nil = X0
      | sK48_skl != app(sK48_skl,X0)
      | ~ ssList(nil)
      | ~ ssList(sK48_skl)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f595,f378]) ).

fof(f867,plain,
    ! [X0] :
      ( sK47_skl = X0
      | sK47_skl != app(nil,X0)
      | ~ ssList(sK47_skl)
      | ~ ssList(nil)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f515,f378]) ).

fof(f868,plain,
    ! [X0] :
      ( sK48_skl = X0
      | sK48_skl != app(nil,X0)
      | ~ ssList(sK48_skl)
      | ~ ssList(nil)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f514,f378]) ).

fof(f869,plain,
    ! [X0] :
      ( nil = X0
      | nil != app(nil,X0)
      | ~ ssList(nil)
      | ~ ssList(nil)
      | ~ ssList(X0) ),
    inference(paramodulation,[status(thm)],[f513,f378]) ).

fof(f876,definition,
    ! [X0] :
      ( sQ38_spl
    <=> ( nil = X0
        | sK47_skl != app(sK47_skl,X0)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ38_spl])],[split_symbol_definition]) ).

fof(f879,plain,
    ( ~ sQ4_spl
    | ~ sQ3_spl
    | sQ38_spl ),
    inference(split_clause,[status(thm)],[f865,f876,f552,f555]) ).

fof(f880,definition,
    ! [X0] :
      ( sQ39_spl
    <=> ( nil = X0
        | sK48_skl != app(sK48_skl,X0)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ39_spl])],[split_symbol_definition]) ).

fof(f883,plain,
    ( ~ sQ4_spl
    | ~ sQ6_spl
    | sQ39_spl ),
    inference(split_clause,[status(thm)],[f866,f880,f562,f555]) ).

fof(f884,definition,
    ! [X0] :
      ( sQ40_spl
    <=> ( sK47_skl = X0
        | sK47_skl != app(nil,X0)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ40_spl])],[split_symbol_definition]) ).

fof(f887,plain,
    ( ~ sQ3_spl
    | ~ sQ4_spl
    | sQ40_spl ),
    inference(split_clause,[status(thm)],[f867,f884,f555,f552]) ).

fof(f888,definition,
    ! [X0] :
      ( sQ41_spl
    <=> ( sK48_skl = X0
        | sK48_skl != app(nil,X0)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ41_spl])],[split_symbol_definition]) ).

fof(f891,plain,
    ( ~ sQ6_spl
    | ~ sQ4_spl
    | sQ41_spl ),
    inference(split_clause,[status(thm)],[f868,f888,f555,f562]) ).

fof(f892,definition,
    ! [X0] :
      ( sQ42_spl
    <=> ( nil = X0
        | nil != app(nil,X0)
        | ~ ssList(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ42_spl])],[split_symbol_definition]) ).

fof(f895,plain,
    ( ~ sQ4_spl
    | sQ42_spl ),
    inference(split_clause,[status(thm)],[f869,f892,f555]) ).

fof(f1002,plain,
    ! [X0] :
      ( rearsegP(app(sK47_skl,X0),X0)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f670,f419]) ).

fof(f1003,plain,
    ! [X0] :
      ( rearsegP(app(sK48_skl,X0),X0)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f670,f420]) ).

fof(f1004,plain,
    ! [X0] :
      ( rearsegP(app(nil,X0),X0)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f670,f223]) ).

fof(f1070,plain,
    ( rearsegP(sK47_skl,nil)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f596,f1002]) ).

fof(f1071,definition,
    ( sQ46_spl
  <=> rearsegP(sK47_skl,nil) ),
    introduced(definition,[new_symbols(definition,[sQ46_spl])],[split_symbol_definition]) ).

fof(f1074,plain,
    ( sQ46_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f1070,f555,f1071]) ).

fof(f1075,plain,
    ( rearsegP(sK48_skl,nil)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f595,f1003]) ).

fof(f1076,definition,
    ( sQ47_spl
  <=> rearsegP(sK48_skl,nil) ),
    introduced(definition,[new_symbols(definition,[sQ47_spl])],[split_symbol_definition]) ).

fof(f1079,plain,
    ( sQ47_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f1075,f555,f1076]) ).

fof(f1084,plain,
    ( rearsegP(sK47_skl,sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(paramodulation,[status(thm)],[f515,f1004]) ).

fof(f1085,plain,
    ( rearsegP(sK48_skl,sK48_skl)
    | ~ ssList(sK48_skl) ),
    inference(paramodulation,[status(thm)],[f514,f1004]) ).

fof(f1086,plain,
    ( rearsegP(nil,nil)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f513,f1004]) ).

fof(f1087,definition,
    ( sQ48_spl
  <=> rearsegP(sK47_skl,sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ48_spl])],[split_symbol_definition]) ).

fof(f1090,plain,
    ( sQ48_spl
    | ~ sQ3_spl ),
    inference(split_clause,[status(thm)],[f1084,f552,f1087]) ).

fof(f1091,definition,
    ( sQ49_spl
  <=> rearsegP(sK48_skl,sK48_skl) ),
    introduced(definition,[new_symbols(definition,[sQ49_spl])],[split_symbol_definition]) ).

fof(f1094,plain,
    ( sQ49_spl
    | ~ sQ6_spl ),
    inference(split_clause,[status(thm)],[f1085,f562,f1091]) ).

fof(f1095,definition,
    ( sQ50_spl
  <=> rearsegP(nil,nil) ),
    introduced(definition,[new_symbols(definition,[sQ50_spl])],[split_symbol_definition]) ).

fof(f1098,plain,
    ( sQ50_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f1086,f555,f1095]) ).

fof(f1295,plain,
    ( ~ sQ0_spl
    | ~ ssItem(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl))
    | singletonP(sK47_skl)
    | ~ ssList(cons(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl),nil)) ),
    inference(paramodulation,[status(thm)],[f669,f451]) ).

fof(f1312,definition,
    ( sQ51_spl
  <=> ssItem(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ51_spl])],[split_symbol_definition]) ).

fof(f1314,plain,
    ( sQ51_spl
    | ~ ssItem(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl)) ),
    inference(component_clause,[status(thm)],[f1312]) ).

fof(f1323,definition,
    ( sQ54_spl
  <=> ssList(cons(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl),nil)) ),
    introduced(definition,[new_symbols(definition,[sQ54_spl])],[split_symbol_definition]) ).

fof(f1325,plain,
    ( sQ54_spl
    | ~ ssList(cons(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl),nil)) ),
    inference(component_clause,[status(thm)],[f1323]) ).

fof(f1326,definition,
    ( sQ55_spl
  <=> singletonP(sK47_skl) ),
    introduced(definition,[new_symbols(definition,[sQ55_spl])],[split_symbol_definition]) ).

fof(f1327,plain,
    ( ~ sQ55_spl
    | singletonP(sK47_skl) ),
    inference(component_clause,[status(thm)],[f1326]) ).

fof(f1329,plain,
    ( ~ sQ0_spl
    | ~ sQ51_spl
    | sQ55_spl
    | ~ sQ54_spl ),
    inference(split_clause,[status(thm)],[f1295,f1323,f1326,f1312,f437]) ).

fof(f1379,plain,
    ( sQ51_spl
    | ~ sP0_prd(sK48_skl,sK47_skl,sK48_skl,sK47_skl) ),
    inference(resolution,[status(thm)],[f1314,f431]) ).

fof(f1380,plain,
    ( sQ51_spl
    | ~ sQ0_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f1379,f508]) ).

fof(f1381,plain,
    ( sQ51_spl
    | ~ sQ0_spl ),
    inference(contradiction_clause,[status(thm)],[f1380]) ).

fof(f1382,plain,
    ( sQ2_spl
    | ~ neq(sK48_skl,nil) ),
    inference(forward_demodulation,[status(thm)],[f423,f446]) ).

fof(f1386,plain,
    ( sQ2_spl
    | ~ sQ1_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f1382,f441]) ).

fof(f1387,plain,
    ( sQ2_spl
    | ~ sQ1_spl ),
    inference(contradiction_clause,[status(thm)],[f1386]) ).

fof(f1470,plain,
    ( sQ54_spl
    | ~ ssItem(sK51_skl(sK48_skl,sK47_skl,sK48_skl,sK47_skl))
    | ~ ssList(nil) ),
    inference(resolution,[status(thm)],[f1325,f222]) ).

fof(f1471,plain,
    ( sQ54_spl
    | ~ sQ51_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f1470,f555,f1312,f1323]) ).

fof(f1475,plain,
    ! [X0,X1,X2] :
      ( ~ sQ55_spl
      | ~ sP0_prd(X0,X1,X2,sK47_skl) ),
    inference(resolution,[status(thm)],[f1327,f435]) ).

fof(f1538,plain,
    ! [X0,X1,X2,X3] :
      ( ~ ssItem(X0)
      | ~ ssList(nil)
      | ~ sP0_prd(X1,X2,X3,cons(X0,nil))
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f497,f222]) ).

fof(f1539,definition,
    ! [X0,X1,X2,X3] :
      ( sQ67_spl
    <=> ( ~ ssItem(X0)
        | ~ sP0_prd(X1,X2,X3,cons(X0,nil))
        | ~ ssItem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ67_spl])],[split_symbol_definition]) ).

fof(f1542,plain,
    ( ~ sQ4_spl
    | sQ67_spl ),
    inference(split_clause,[status(thm)],[f1538,f1539,f555]) ).

fof(f1566,plain,
    ( ~ sQ0_spl
    | ~ sQ55_spl
    | $false ),
    inference(backward_subsumption_resolution,[status(thm)],[f508,f1475]) ).

fof(f1567,plain,
    ( ~ sQ0_spl
    | ~ sQ55_spl ),
    inference(contradiction_clause,[status(thm)],[f1566]) ).

fof(f1568,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f443,f447,f561,f568,f572,f574,f577,f579,f601,f607,f616,f630,f647,f651,f655,f659,f663,f747,f751,f755,f759,f763,f794,f798,f802,f806,f810,f825,f830,f839,f841,f849,f851,f857,f879,f883,f887,f891,f895,f1074,f1079,f1090,f1094,f1098,f1329,f1381,f1387,f1471,f1542,f1567]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SWC254+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04  % Command  : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.09/0.36  % Computer : n014.cluster.edu
% 0.09/0.36  % Model    : x86_64 x86_64
% 0.09/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36  % Memory   : 8046.5625MB
% 0.09/0.36  % OS       : Linux 6.8.0-71-generic
% 0.09/0.37  % CPULimit : 300
% 0.09/0.37  % WCLimit  : 300
% 0.09/0.37  % DateTime : Mon Sep 21 08:08:49 UTC 2026
% 0.09/0.37  % CPUTime  : 
% 0.09/0.39  % Drodi V4.1.1
% 0.09/0.42  % Refutation found
% 0.09/0.42  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.09/0.42  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.09/0.45  % Elapsed time: 0.076877 seconds
% 0.09/0.45  % CPU time: 0.369457 seconds
% 0.09/0.45  % Total memory used: 70.709 MB
% 0.09/0.45  % Net memory used: 70.327 MB
%------------------------------------------------------------------------------