↑ Up

Drodi---4.1.1.THM-CRf.s

View TPTP
Problem
Process solution in
SystemOnTSTP
Download .tgz
%------------------------------------------------------------------------------
% File     : Drodi---4.1.1
% Problem  : SWC295+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 : n001.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 02:40:41 PM UTC 2026

% Result   : Theorem 90.33s 11.96s
% Output   : CNFRefutation 81.96s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   73
%            Number of leaves      :   27
% Syntax   : Number of formulae    :  301 (  27 unt;   2 def)
%            Number of atoms       : 1228 ( 304 equ)
%            Maximal formula atoms :   24 (   4 avg)
%            Number of connectives : 1563 ( 636   ~; 716   |; 121   &)
%                                         (  16 <=>;  74  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   25 (   6 avg)
%            Maximal term depth    :    5 (   1 avg)
%            Number of predicates  :   11 (   9 usr;   1 prp; 0-3 aty)
%            Number of functors    :   19 (  19 usr;  10 con; 0-3 aty)
%            Number of variables   :  383 ( 349   !;  34   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f3,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssItem(V)
         => ( memberP(U,V)
          <=> ? [W] :
                ( ? [X] :
                    ( app(W,cons(V,X)) = U
                    & ssList(X) )
                & ssList(W) ) ) ) ),
    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(f6,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( rearsegP(U,V)
          <=> ? [W] :
                ( app(W,V) = 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(f25,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssItem(V)
         => tl(cons(V,U)) = 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(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(f47,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ( ( rearsegP(V,W)
                  & rearsegP(U,V) )
               => rearsegP(U,W) ) ) ) ),
    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(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(f83,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( nil = app(U,V)
          <=> ( nil = U
              & nil = V ) ) ) ),
    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(f86,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( nil != U
           => tl(app(U,V)) = app(tl(U),V) ) ) ),
    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] :
                                ( leq(X3,X4)
                                & memberP(X,X4)
                                & X3 != X4
                                & ssItem(X4) )
                            | ~ memberP(X,X3)
                            | cons(X3,nil) != W ) ) )
                    | ! [Y] :
                        ( ssItem(Y)
                       => ! [Z] :
                            ( ssList(Z)
                           => ! [X1] :
                                ( ssList(X1)
                               => ( ! [X2] :
                                      ( ssItem(X2)
                                     => ( ( lt(Y,X2)
                                          | ~ memberP(X1,X2) )
                                        & ( lt(X2,Y)
                                          | ~ memberP(Z,X2) ) ) )
                                  | app(app(Z,cons(Y,nil)),X1) != 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] :
                                  ( leq(X3,X4)
                                  & memberP(X,X4)
                                  & X3 != X4
                                  & ssItem(X4) )
                              | ~ memberP(X,X3)
                              | cons(X3,nil) != W ) ) )
                      | ! [Y] :
                          ( ssItem(Y)
                         => ! [Z] :
                              ( ssList(Z)
                             => ! [X1] :
                                  ( ssList(X1)
                                 => ( ! [X2] :
                                        ( ssItem(X2)
                                       => ( ( lt(Y,X2)
                                            | ~ memberP(X1,X2) )
                                          & ( lt(X2,Y)
                                            | ~ memberP(Z,X2) ) ) )
                                    | app(app(Z,cons(Y,nil)),X1) != U ) ) ) )
                      | U != W
                      | V != X ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f96]) ).

fof(f106,plain,
    ! [U] :
      ( ! [V] :
          ( ( memberP(U,V)
          <=> ? [W] :
                ( ? [X] :
                    ( app(W,cons(V,X)) = U
                    & ssList(X) )
                & ssList(W) ) )
          | ~ ssItem(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f3]) ).

fof(f107,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( ! [X] :
                      ( app(W,cons(V,X)) != U
                      | ~ ssList(X) )
                  | ~ ssList(W) )
              | memberP(U,V) )
            & ( ? [W] :
                  ( ? [X] :
                      ( app(W,cons(V,X)) = U
                      & ssList(X) )
                  & ssList(W) )
              | ~ memberP(U,V) ) )
          | ~ ssItem(V) )
      | ~ ssList(U) ),
    inference(NNF_transformation,[status(thm)],[f106]) ).

fof(f108,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( ! [W] :
                  ( ! [X] :
                      ( app(W,cons(V,X)) != U
                      | ~ ssList(X) )
                  | ~ ssList(W) )
              | memberP(U,V) )
            & ( ( app(sK2_skl(V,U),cons(V,sK3_skl(V,U))) = U
                & ssList(sK3_skl(V,U))
                & ssList(sK2_skl(V,U)) )
              | ~ memberP(U,V) ) )
          | ~ ssItem(V) )
      | ~ ssList(U) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK2_skl,sK3_skl]),skolemize(W,sK2_skl(V,U)),skolemize(X,sK3_skl(V,U))],[f107]) ).

fof(f112,plain,
    ! [X0,X1,X2,X3] :
      ( app(X2,cons(X1,X3)) != X0
      | ~ ssList(X3)
      | ~ ssList(X2)
      | memberP(X0,X1)
      | ~ ssItem(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f108]) ).

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(f128,plain,
    ! [X0,X1] :
      ( ssList(sK6_skl(X1,X0))
      | ~ rearsegP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f127]) ).

fof(f129,plain,
    ! [X0,X1] :
      ( app(sK6_skl(X1,X0),X1) = X0
      | ~ rearsegP(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f127]) ).

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(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(f242,plain,
    ! [U] :
      ( ! [V] :
          ( tl(cons(V,U)) = U
          | ~ ssItem(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f25]) ).

fof(f243,plain,
    ! [X0,X1] :
      ( tl(cons(X1,X0)) = X0
      | ~ ssItem(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f242]) ).

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(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(f300,plain,
    ! [U] :
      ( ! [V] :
          ( ! [W] :
              ( rearsegP(U,W)
              | ~ rearsegP(V,W)
              | ~ rearsegP(U,V)
              | ~ ssList(W) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f47]) ).

fof(f301,plain,
    ! [X0,X1,X2] :
      ( rearsegP(X0,X2)
      | ~ rearsegP(X1,X2)
      | ~ rearsegP(X0,X1)
      | ~ ssList(X2)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f300]) ).

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(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(f383,plain,
    ! [U] :
      ( ! [V] :
          ( ( nil = app(U,V)
          <=> ( nil = U
              & nil = V ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f83]) ).

fof(f384,plain,
    ! [U] :
      ( ! [V] :
          ( ( ( nil != U
              | nil != V
              | nil = app(U,V) )
            & ( ( nil = U
                & nil = V )
              | nil != app(U,V) ) )
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(NNF_transformation,[status(thm)],[f383]) ).

fof(f385,plain,
    ! [X0,X1] :
      ( nil = X1
      | nil != app(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f384]) ).

fof(f386,plain,
    ! [X0,X1] :
      ( nil = X0
      | nil != app(X0,X1)
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f384]) ).

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(f392,plain,
    ! [U] :
      ( ! [V] :
          ( tl(app(U,V)) = app(tl(U),V)
          | nil = U
          | ~ ssList(V) )
      | ~ ssList(U) ),
    inference(pre_NNF_transformation,[status(thm)],[f86]) ).

fof(f393,plain,
    ! [X0,X1] :
      ( tl(app(X0,X1)) = app(tl(X0),X1)
      | nil = X0
      | ~ ssList(X1)
      | ~ ssList(X0) ),
    inference(cnf_transformation,[status(thm)],[f392]) ).

fof(f415,plain,
    ? [U] :
      ( ? [V] :
          ( ? [W] :
              ( ? [X] :
                  ( ( ( nil = W
                      & nil = X )
                    | ? [X3] :
                        ( ! [X4] :
                            ( ~ leq(X3,X4)
                            | ~ memberP(X,X4)
                            | X3 = X4
                            | ~ ssItem(X4) )
                        & memberP(X,X3)
                        & cons(X3,nil) = W
                        & ssItem(X3) ) )
                  & ? [Y] :
                      ( ? [Z] :
                          ( ? [X1] :
                              ( ? [X2] :
                                  ( ( ( ~ lt(Y,X2)
                                      & memberP(X1,X2) )
                                    | ( ~ lt(X2,Y)
                                      & memberP(Z,X2) ) )
                                  & ssItem(X2) )
                              & app(app(Z,cons(Y,nil)),X1) = U
                              & ssList(X1) )
                          & ssList(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,
    ! [Y,Z,X2] :
      ( sP0_prd(X2,Z,Y)
    <=> ( ~ lt(X2,Y)
        & memberP(Z,X2) ) ),
    introduced(definition,[new_symbols(definition,[sP0_prd])],[]) ).

fof(f417,definition,
    ! [W,X,X3] :
      ( sP1_prd(X3,X,W)
    <=> ( ! [X4] :
            ( ~ leq(X3,X4)
            | ~ memberP(X,X4)
            | X3 = X4
            | ~ ssItem(X4) )
        & memberP(X,X3)
        & cons(X3,nil) = W
        & ssItem(X3) ) ),
    introduced(definition,[new_symbols(definition,[sP1_prd])],[]) ).

fof(f418,plain,
    ? [U] :
      ( ? [V] :
          ( ? [W] :
              ( ? [X] :
                  ( ( ( nil = W
                      & nil = X )
                    | ? [X3] : sP1_prd(X3,X,W) )
                  & ? [Y] :
                      ( ? [Z] :
                          ( ? [X1] :
                              ( ? [X2] :
                                  ( ( ( ~ lt(Y,X2)
                                      & memberP(X1,X2) )
                                    | sP0_prd(X2,Z,Y) )
                                  & ssItem(X2) )
                              & app(app(Z,cons(Y,nil)),X1) = U
                              & ssList(X1) )
                          & ssList(Z) )
                      & ssItem(Y) )
                  & U = W
                  & V = X
                  & ssList(X) )
              & ssList(W) )
          & ssList(V) )
      & ssList(U) ),
    inference(formula_renaming,[status(thm)],[f415,f417,f416]) ).

fof(f419,plain,
    ( ( ( nil = sK49_skl
        & nil = sK50_skl )
      | sP1_prd(sK55_skl,sK50_skl,sK49_skl) )
    & ( ( ~ lt(sK51_skl,sK54_skl)
        & memberP(sK53_skl,sK54_skl) )
      | sP0_prd(sK54_skl,sK52_skl,sK51_skl) )
    & ssItem(sK54_skl)
    & app(app(sK52_skl,cons(sK51_skl,nil)),sK53_skl) = sK47_skl
    & ssList(sK53_skl)
    & ssList(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)],[f418]) ).

fof(f420,plain,
    ssList(sK47_skl),
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f424,plain,
    sK48_skl = sK50_skl,
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f425,plain,
    sK47_skl = sK49_skl,
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f426,plain,
    ssItem(sK51_skl),
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f427,plain,
    ssList(sK52_skl),
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f428,plain,
    ssList(sK53_skl),
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f429,plain,
    app(app(sK52_skl,cons(sK51_skl,nil)),sK53_skl) = sK47_skl,
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f430,plain,
    ssItem(sK54_skl),
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f431,plain,
    ( memberP(sK53_skl,sK54_skl)
    | sP0_prd(sK54_skl,sK52_skl,sK51_skl) ),
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f434,plain,
    ( nil = sK49_skl
    | sP1_prd(sK55_skl,sK50_skl,sK49_skl) ),
    inference(cnf_transformation,[status(thm)],[f419]) ).

fof(f435,plain,
    ! [Y,Z,X2] :
      ( ( lt(X2,Y)
        | ~ memberP(Z,X2)
        | sP0_prd(X2,Z,Y) )
      & ( ( ~ lt(X2,Y)
          & memberP(Z,X2) )
        | ~ sP0_prd(X2,Z,Y) ) ),
    inference(NNF_transformation,[status(thm)],[f416]) ).

fof(f436,plain,
    ( ! [Y,Z,X2] :
        ( lt(X2,Y)
        | ~ memberP(Z,X2)
        | sP0_prd(X2,Z,Y) )
    & ! [Y,Z,X2] :
        ( ( ~ lt(X2,Y)
          & memberP(Z,X2) )
        | ~ sP0_prd(X2,Z,Y) ) ),
    inference(miniscoping,[status(thm)],[f435]) ).

fof(f437,plain,
    ! [X0,X1,X2] :
      ( memberP(X1,X0)
      | ~ sP0_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f436]) ).

fof(f440,plain,
    ! [W,X,X3] :
      ( ( ? [X4] :
            ( leq(X3,X4)
            & memberP(X,X4)
            & X3 != X4
            & ssItem(X4) )
        | ~ memberP(X,X3)
        | cons(X3,nil) != W
        | ~ ssItem(X3)
        | sP1_prd(X3,X,W) )
      & ( ( ! [X4] :
              ( ~ leq(X3,X4)
              | ~ memberP(X,X4)
              | X3 = X4
              | ~ ssItem(X4) )
          & memberP(X,X3)
          & cons(X3,nil) = W
          & ssItem(X3) )
        | ~ sP1_prd(X3,X,W) ) ),
    inference(NNF_transformation,[status(thm)],[f417]) ).

fof(f441,plain,
    ( ! [W,X,X3] :
        ( ? [X4] :
            ( leq(X3,X4)
            & memberP(X,X4)
            & X3 != X4
            & ssItem(X4) )
        | ~ memberP(X,X3)
        | cons(X3,nil) != W
        | ~ ssItem(X3)
        | sP1_prd(X3,X,W) )
    & ! [W,X,X3] :
        ( ( ! [X4] :
              ( ~ leq(X3,X4)
              | ~ memberP(X,X4)
              | X3 = X4
              | ~ ssItem(X4) )
          & memberP(X,X3)
          & cons(X3,nil) = W
          & ssItem(X3) )
        | ~ sP1_prd(X3,X,W) ) ),
    inference(miniscoping,[status(thm)],[f440]) ).

fof(f442,plain,
    ( ! [W,X,X3] :
        ( ( leq(X3,sK56_skl(X3,X,W))
          & memberP(X,sK56_skl(X3,X,W))
          & X3 != sK56_skl(X3,X,W)
          & ssItem(sK56_skl(X3,X,W)) )
        | ~ memberP(X,X3)
        | cons(X3,nil) != W
        | ~ ssItem(X3)
        | sP1_prd(X3,X,W) )
    & ! [W,X,X3] :
        ( ( ! [X4] :
              ( ~ leq(X3,X4)
              | ~ memberP(X,X4)
              | X3 = X4
              | ~ ssItem(X4) )
          & memberP(X,X3)
          & cons(X3,nil) = W
          & ssItem(X3) )
        | ~ sP1_prd(X3,X,W) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK56_skl]),skolemize(X4,sK56_skl(X3,X,W))],[f441]) ).

fof(f443,plain,
    ! [X0,X1,X2] :
      ( ssItem(X0)
      | ~ sP1_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f442]) ).

fof(f444,plain,
    ! [X0,X1,X2] :
      ( cons(X0,nil) = X2
      | ~ sP1_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f442]) ).

fof(f447,plain,
    ! [X0,X1,X2] :
      ( ssItem(sK56_skl(X0,X1,X2))
      | ~ memberP(X1,X0)
      | cons(X0,nil) != X2
      | ~ ssItem(X0)
      | sP1_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f442]) ).

fof(f448,plain,
    ! [X0,X1,X2] :
      ( X0 != sK56_skl(X0,X1,X2)
      | ~ memberP(X1,X0)
      | cons(X0,nil) != X2
      | ~ ssItem(X0)
      | sP1_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f442]) ).

fof(f449,plain,
    ! [X0,X1,X2] :
      ( memberP(X1,sK56_skl(X0,X1,X2))
      | ~ memberP(X1,X0)
      | cons(X0,nil) != X2
      | ~ ssItem(X0)
      | sP1_prd(X0,X1,X2) ),
    inference(cnf_transformation,[status(thm)],[f442]) ).

fof(f453,plain,
    ! [X0,X1,X2] :
      ( ~ ssList(X2)
      | ~ ssList(X0)
      | memberP(app(X0,cons(X1,X2)),X1)
      | ~ ssItem(X1)
      | ~ ssList(app(X0,cons(X1,X2))) ),
    inference(destructive_equality_resolution,[status(thm)],[f112]) ).

fof(f455,plain,
    ! [X0,X1] :
      ( ~ ssList(X1)
      | frontsegP(app(X0,X1),X0)
      | ~ ssList(X0)
      | ~ ssList(app(X0,X1)) ),
    inference(destructive_equality_resolution,[status(thm)],[f124]) ).

fof(f456,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | rearsegP(app(X0,X1),X1)
      | ~ ssList(X1)
      | ~ ssList(app(X0,X1)) ),
    inference(destructive_equality_resolution,[status(thm)],[f130]) ).

fof(f468,plain,
    ! [X1,X2] :
      ( memberP(cons(X1,X2),X1)
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ ssItem(X1) ),
    inference(destructive_equality_resolution,[status(thm)],[f276]) ).

fof(f469,plain,
    ! [X0,X1] :
      ( memberP(cons(X0,X1),X0)
      | ~ ssList(X1)
      | ~ ssItem(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f468]) ).

fof(f470,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(f471,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)],[f470]) ).

fof(f481,plain,
    ! [X0,X1] :
      ( ssItem(sK56_skl(X0,X1,cons(X0,nil)))
      | ~ memberP(X1,X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,X1,cons(X0,nil)) ),
    inference(destructive_equality_resolution,[status(thm)],[f447]) ).

fof(f482,plain,
    ! [X0,X1] :
      ( X0 != sK56_skl(X0,X1,cons(X0,nil))
      | ~ memberP(X1,X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,X1,cons(X0,nil)) ),
    inference(destructive_equality_resolution,[status(thm)],[f448]) ).

fof(f483,plain,
    ! [X0,X1] :
      ( memberP(X1,sK56_skl(X0,X1,cons(X0,nil)))
      | ~ memberP(X1,X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,X1,cons(X0,nil)) ),
    inference(destructive_equality_resolution,[status(thm)],[f449]) ).

fof(f499,plain,
    ( nil = sK49_skl
    | sP1_prd(sK55_skl,sK48_skl,sK49_skl) ),
    inference(forward_demodulation,[status(thm)],[f424,f434]) ).

fof(f500,plain,
    ( nil = sK49_skl
    | sP1_prd(sK55_skl,sK48_skl,sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f425,f499]) ).

fof(f501,plain,
    ( nil = sK47_skl
    | sP1_prd(sK55_skl,sK48_skl,sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f425,f500]) ).

fof(f502,plain,
    ( cons(sK55_skl,nil) = sK47_skl
    | nil = sK47_skl ),
    inference(resolution,[status(thm)],[f501,f444]) ).

fof(f504,plain,
    ( ssItem(sK55_skl)
    | nil = sK47_skl ),
    inference(resolution,[status(thm)],[f501,f443]) ).

fof(f685,plain,
    ( memberP(sK52_skl,sK54_skl)
    | memberP(sK53_skl,sK54_skl) ),
    inference(resolution,[status(thm)],[f431,f437]) ).

fof(f714,plain,
    ( nil = app(sK52_skl,cons(sK51_skl,nil))
    | nil != sK47_skl
    | ~ ssList(sK53_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(paramodulation,[status(thm)],[f429,f386]) ).

fof(f715,plain,
    ( nil = app(sK52_skl,cons(sK51_skl,nil))
    | nil != sK47_skl
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(forward_subsumption_resolution,[status(thm)],[f714,f428]) ).

fof(f884,plain,
    ! [X0,X1] :
      ( ~ ssList(X1)
      | frontsegP(app(X0,X1),X0)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f455,f245]) ).

fof(f888,plain,
    ! [X0] :
      ( nil = X0
      | ~ ssList(X0)
      | ~ ssList(sK6_skl(X0,nil))
      | ~ rearsegP(nil,X0)
      | ~ ssList(X0)
      | ~ ssList(nil) ),
    inference(resolution,[status(thm)],[f129,f385]) ).

fof(f891,plain,
    ! [X0] :
      ( nil = X0
      | ~ ssList(sK6_skl(X0,nil))
      | ~ rearsegP(nil,X0)
      | ~ ssList(X0)
      | ~ ssList(nil) ),
    inference(duplicate_literals_removal,[status(thm)],[f888]) ).

fof(f892,plain,
    ! [X0] :
      ( nil = X0
      | ~ ssList(sK6_skl(X0,nil))
      | ~ rearsegP(nil,X0)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f891,f223]) ).

fof(f927,plain,
    ! [X0] :
      ( ~ rearsegP(nil,X0)
      | ~ ssList(X0)
      | ~ ssList(nil)
      | nil = X0
      | ~ rearsegP(nil,X0)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f892,f128]) ).

fof(f928,plain,
    ! [X0] :
      ( ~ ssList(nil)
      | nil = X0
      | ~ rearsegP(nil,X0)
      | ~ ssList(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f927]) ).

fof(f929,plain,
    ! [X0] :
      ( nil = X0
      | ~ rearsegP(nil,X0)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f928,f223]) ).

fof(f963,plain,
    ! [X0] :
      ( ~ memberP(app(sK52_skl,cons(sK51_skl,nil)),X0)
      | memberP(sK47_skl,X0)
      | ~ ssList(sK53_skl)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
      | ~ ssItem(X0) ),
    inference(paramodulation,[status(thm)],[f429,f271]) ).

fof(f964,plain,
    ! [X0] :
      ( ~ memberP(app(sK52_skl,cons(sK51_skl,nil)),X0)
      | memberP(sK47_skl,X0)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f963,f428]) ).

fof(f966,plain,
    ! [X0] :
      ( ~ memberP(sK53_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssList(sK53_skl)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
      | ~ ssItem(X0) ),
    inference(paramodulation,[status(thm)],[f429,f272]) ).

fof(f967,plain,
    ! [X0] :
      ( ~ memberP(sK53_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f966,f428]) ).

fof(f972,plain,
    ! [X0] :
      ( nil = sK47_skl
      | memberP(nil,X0)
      | X0 = sK55_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssList(nil)
      | ~ ssItem(sK55_skl)
      | ~ ssItem(X0) ),
    inference(paramodulation,[status(thm)],[f502,f275]) ).

fof(f974,plain,
    ! [X0] :
      ( nil = sK47_skl
      | memberP(nil,X0)
      | X0 = sK55_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssList(nil)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f972,f504]) ).

fof(f989,plain,
    ! [X0,X1] :
      ( ~ ssList(X1)
      | rearsegP(app(X1,X0),X0)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f456,f245]) ).

fof(f990,plain,
    ( ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
    | rearsegP(sK47_skl,sK53_skl)
    | ~ ssList(sK53_skl) ),
    inference(paramodulation,[status(thm)],[f429,f989]) ).

fof(f991,plain,
    ( ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
    | rearsegP(sK47_skl,sK53_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f990,f428]) ).

fof(f992,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | rearsegP(sK47_skl,sK53_skl) ),
    inference(resolution,[status(thm)],[f991,f245]) ).

fof(f993,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | rearsegP(sK47_skl,sK53_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f992,f427]) ).

fof(f994,plain,
    ( ~ ssItem(sK51_skl)
    | ~ ssList(nil)
    | rearsegP(sK47_skl,sK53_skl) ),
    inference(resolution,[status(thm)],[f993,f222]) ).

fof(f995,plain,
    ( ~ ssItem(sK51_skl)
    | rearsegP(sK47_skl,sK53_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f994,f223]) ).

fof(f996,plain,
    rearsegP(sK47_skl,sK53_skl),
    inference(forward_subsumption_resolution,[status(thm)],[f995,f426]) ).

fof(f1018,plain,
    ! [X0,X1,X2] :
      ( memberP(X2,sK56_skl(X0,cons(X1,X2),cons(X0,nil)))
      | sK56_skl(X0,cons(X1,X2),cons(X0,nil)) = X1
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ ssItem(sK56_skl(X0,cons(X1,X2),cons(X0,nil)))
      | ~ memberP(cons(X1,X2),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X1,X2),cons(X0,nil)) ),
    inference(resolution,[status(thm)],[f483,f275]) ).

fof(f1023,plain,
    ! [X0,X1,X2] :
      ( memberP(X2,sK56_skl(X0,cons(X1,X2),cons(X0,nil)))
      | sK56_skl(X0,cons(X1,X2),cons(X0,nil)) = X1
      | ~ ssList(X2)
      | ~ ssItem(X1)
      | ~ memberP(cons(X1,X2),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X1,X2),cons(X0,nil)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f1018,f481]) ).

fof(f1380,plain,
    ( nil = sK52_skl
    | ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | nil != sK47_skl
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(resolution,[status(thm)],[f715,f386]) ).

fof(f1381,plain,
    ( nil = cons(sK51_skl,nil)
    | ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | nil != sK47_skl
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(resolution,[status(thm)],[f715,f385]) ).

fof(f1382,plain,
    ( nil = sK52_skl
    | ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | nil != sK47_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f1380,f245]) ).

fof(f1383,plain,
    ( nil = cons(sK51_skl,nil)
    | ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | nil != sK47_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f1381,f245]) ).

fof(f2700,plain,
    ! [X0] :
      ( frontsegP(sK47_skl,X0)
      | ~ frontsegP(app(sK52_skl,cons(sK51_skl,nil)),X0)
      | ~ ssList(sK53_skl)
      | ~ ssList(X0)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(paramodulation,[status(thm)],[f429,f288]) ).

fof(f2705,plain,
    ! [X0] :
      ( frontsegP(sK47_skl,X0)
      | ~ frontsegP(app(sK52_skl,cons(sK51_skl,nil)),X0)
      | ~ ssList(X0)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2700,f428]) ).

fof(f2707,plain,
    ( ~ ssList(nil)
    | ~ ssList(sK52_skl)
    | ~ ssItem(sK51_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
    | memberP(sK47_skl,sK51_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
    | ~ ssItem(sK51_skl) ),
    inference(resolution,[status(thm)],[f964,f453]) ).

fof(f2709,plain,
    ! [X0] :
      ( ~ memberP(sK52_skl,X0)
      | ~ ssList(cons(sK51_skl,nil))
      | ~ ssList(sK52_skl)
      | ~ ssItem(X0)
      | memberP(sK47_skl,X0)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f964,f271]) ).

fof(f2711,plain,
    ( ~ ssList(nil)
    | ~ ssList(sK52_skl)
    | memberP(sK47_skl,sK51_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
    | ~ ssItem(sK51_skl) ),
    inference(duplicate_literals_removal,[status(thm)],[f2707]) ).

fof(f2712,plain,
    ( ~ ssList(nil)
    | ~ ssList(sK52_skl)
    | memberP(sK47_skl,sK51_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2711,f426]) ).

fof(f2715,plain,
    ! [X0] :
      ( ~ memberP(sK52_skl,X0)
      | ~ ssList(cons(sK51_skl,nil))
      | ~ ssList(sK52_skl)
      | memberP(sK47_skl,X0)
      | ~ ssList(app(sK52_skl,cons(sK51_skl,nil)))
      | ~ ssItem(X0) ),
    inference(duplicate_literals_removal,[status(thm)],[f2709]) ).

fof(f2716,plain,
    ! [X0] :
      ( ~ memberP(sK52_skl,X0)
      | ~ ssList(cons(sK51_skl,nil))
      | ~ ssList(sK52_skl)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2715,f245]) ).

fof(f2718,plain,
    ! [X0] :
      ( ~ ssList(cons(sK51_skl,nil))
      | ~ ssList(sK52_skl)
      | ~ memberP(sK53_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f967,f245]) ).

fof(f2719,plain,
    ! [X0] :
      ( ~ ssList(cons(sK51_skl,nil))
      | ~ memberP(sK53_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2718,f427]) ).

fof(f2795,plain,
    ! [X0,X1] :
      ( ~ ssItem(sK56_skl(X0,cons(X1,nil),cons(X0,nil)))
      | sK56_skl(X0,cons(X1,nil),cons(X0,nil)) = X1
      | ~ ssList(nil)
      | ~ ssItem(X1)
      | ~ memberP(cons(X1,nil),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X1,nil),cons(X0,nil)) ),
    inference(resolution,[status(thm)],[f1023,f279]) ).

fof(f2807,plain,
    ! [X0,X1] :
      ( ~ ssItem(sK56_skl(X0,cons(X1,nil),cons(X0,nil)))
      | sK56_skl(X0,cons(X1,nil),cons(X0,nil)) = X1
      | ~ ssItem(X1)
      | ~ memberP(cons(X1,nil),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X1,nil),cons(X0,nil)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2795,f223]) ).

fof(f2956,plain,
    ! [X0] :
      ( rearsegP(X0,sK53_skl)
      | ~ rearsegP(X0,sK47_skl)
      | ~ ssList(sK53_skl)
      | ~ ssList(sK47_skl)
      | ~ ssList(X0) ),
    inference(resolution,[status(thm)],[f301,f996]) ).

fof(f2978,plain,
    ! [X0] :
      ( rearsegP(X0,sK53_skl)
      | ~ rearsegP(X0,sK47_skl)
      | ~ ssList(sK53_skl)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2956,f420]) ).

fof(f2997,plain,
    ! [X0] :
      ( rearsegP(X0,sK53_skl)
      | ~ rearsegP(X0,sK47_skl)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2978,f428]) ).

fof(f3017,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ ssList(sK47_skl)
      | rearsegP(app(X0,sK47_skl),sK53_skl)
      | ~ ssList(app(X0,sK47_skl)) ),
    inference(resolution,[status(thm)],[f2997,f989]) ).

fof(f3029,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ ssList(sK47_skl)
      | rearsegP(app(X0,sK47_skl),sK53_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f3017,f245]) ).

fof(f5863,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | rearsegP(app(X0,sK47_skl),sK53_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f3029,f420]) ).

fof(f5920,plain,
    ( tl(sK47_skl) = app(tl(app(sK52_skl,cons(sK51_skl,nil))),sK53_skl)
    | nil = app(sK52_skl,cons(sK51_skl,nil))
    | ~ ssList(sK53_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(paramodulation,[status(thm)],[f429,f393]) ).

fof(f5921,plain,
    ( tl(sK47_skl) = app(tl(app(sK52_skl,cons(sK51_skl,nil))),sK53_skl)
    | nil = app(sK52_skl,cons(sK51_skl,nil))
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(forward_subsumption_resolution,[status(thm)],[f5920,f428]) ).

fof(f5927,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | frontsegP(sK47_skl,sK52_skl)
    | ~ ssList(sK52_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(resolution,[status(thm)],[f2705,f884]) ).

fof(f5932,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | frontsegP(sK47_skl,sK52_skl)
    | ~ ssList(sK52_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(duplicate_literals_removal,[status(thm)],[f5927]) ).

fof(f5933,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | frontsegP(sK47_skl,sK52_skl)
    | ~ ssList(sK52_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f5932,f245]) ).

fof(f6819,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | frontsegP(sK47_skl,sK52_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f5933,f427]) ).

fof(f6820,plain,
    ( ~ ssItem(sK51_skl)
    | ~ ssList(nil)
    | frontsegP(sK47_skl,sK52_skl) ),
    inference(resolution,[status(thm)],[f6819,f222]) ).

fof(f6821,plain,
    ( ~ ssItem(sK51_skl)
    | frontsegP(sK47_skl,sK52_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f6820,f223]) ).

fof(f6822,plain,
    frontsegP(sK47_skl,sK52_skl),
    inference(forward_subsumption_resolution,[status(thm)],[f6821,f426]) ).

fof(f6824,plain,
    ( sK52_skl = sK47_skl
    | ~ frontsegP(sK52_skl,sK47_skl)
    | ~ ssList(sK47_skl)
    | ~ ssList(sK52_skl) ),
    inference(resolution,[status(thm)],[f6822,f284]) ).

fof(f6835,plain,
    ( sK52_skl = sK47_skl
    | ~ frontsegP(sK52_skl,sK47_skl)
    | ~ ssList(sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f6824,f427]) ).

fof(f7611,plain,
    ( sK52_skl = sK47_skl
    | ~ frontsegP(sK52_skl,sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f6835,f420]) ).

fof(f7669,plain,
    ! [X0] :
      ( nil = sK47_skl
      | memberP(nil,X0)
      | X0 = sK55_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f974,f223]) ).

fof(f7821,plain,
    ( nil = sK52_skl
    | ~ ssList(cons(sK51_skl,nil))
    | nil != sK47_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f1382,f427]) ).

fof(f7878,plain,
    ( nil = cons(sK51_skl,nil)
    | ~ ssList(cons(sK51_skl,nil))
    | nil != sK47_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f1383,f427]) ).

fof(f7879,plain,
    ( ~ ssItem(sK51_skl)
    | ~ ssList(nil)
    | ~ ssList(cons(sK51_skl,nil))
    | nil != sK47_skl ),
    inference(resolution,[status(thm)],[f7878,f235]) ).

fof(f7881,plain,
    ( ~ ssItem(sK51_skl)
    | ~ ssList(nil)
    | nil != sK47_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f7879,f222]) ).

fof(f7897,plain,
    ( ~ ssItem(sK51_skl)
    | nil != sK47_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f7881,f223]) ).

fof(f8264,plain,
    ( ~ ssList(nil)
    | memberP(sK47_skl,sK51_skl)
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2712,f427]) ).

fof(f8265,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | ~ ssList(nil)
    | memberP(sK47_skl,sK51_skl) ),
    inference(resolution,[status(thm)],[f8264,f245]) ).

fof(f8266,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | ~ ssList(sK52_skl)
    | memberP(sK47_skl,sK51_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f8265,f223]) ).

fof(f8267,plain,
    ( ~ ssList(cons(sK51_skl,nil))
    | memberP(sK47_skl,sK51_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f8266,f427]) ).

fof(f8268,plain,
    ( ~ ssItem(sK51_skl)
    | ~ ssList(nil)
    | memberP(sK47_skl,sK51_skl) ),
    inference(resolution,[status(thm)],[f8267,f222]) ).

fof(f8269,plain,
    ( ~ ssItem(sK51_skl)
    | memberP(sK47_skl,sK51_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f8268,f223]) ).

fof(f8270,plain,
    memberP(sK47_skl,sK51_skl),
    inference(forward_subsumption_resolution,[status(thm)],[f8269,f426]) ).

fof(f8272,plain,
    ( nil = sK47_skl
    | memberP(nil,sK51_skl)
    | sK51_skl = sK55_skl
    | ~ ssItem(sK51_skl) ),
    inference(resolution,[status(thm)],[f8270,f7669]) ).

fof(f8274,plain,
    ( nil = sK47_skl
    | memberP(nil,sK51_skl)
    | sK51_skl = sK55_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f8272,f426]) ).

fof(f8484,plain,
    ! [X0] :
      ( ~ memberP(sK52_skl,X0)
      | ~ ssList(cons(sK51_skl,nil))
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2716,f427]) ).

fof(f8485,plain,
    ! [X0] :
      ( ~ ssItem(sK51_skl)
      | ~ ssList(nil)
      | ~ memberP(sK52_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f8484,f222]) ).

fof(f8486,plain,
    ! [X0] :
      ( ~ ssItem(sK51_skl)
      | ~ memberP(sK52_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f8485,f223]) ).

fof(f8709,plain,
    ! [X0] :
      ( ~ ssItem(sK51_skl)
      | ~ ssList(nil)
      | ~ memberP(sK53_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(resolution,[status(thm)],[f2719,f222]) ).

fof(f8711,plain,
    ! [X0] :
      ( ~ ssItem(sK51_skl)
      | ~ memberP(sK53_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f8709,f223]) ).

fof(f8713,plain,
    ( ~ ssItem(sK51_skl)
    | nil = sK47_skl
    | sK51_skl = sK55_skl ),
    inference(resolution,[status(thm)],[f8274,f279]) ).

fof(f8714,plain,
    ( ~ ssItem(sK51_skl)
    | sK51_skl = sK55_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f8713,f7897]) ).

fof(f8786,plain,
    ( cons(sK51_skl,nil) = sK47_skl
    | nil = sK47_skl ),
    inference(backward_demodulation,[status(thm)],[f8792,f502]) ).

fof(f8792,plain,
    sK51_skl = sK55_skl,
    inference(forward_subsumption_resolution,[status(thm)],[f8714,f426]) ).

fof(f9486,plain,
    ! [X0] :
      ( ~ memberP(sK52_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f8486,f426]) ).

fof(f9493,plain,
    ! [X0] :
      ( ~ memberP(sK53_skl,X0)
      | memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f8711,f426]) ).

fof(f9494,plain,
    ( memberP(sK52_skl,sK54_skl)
    | memberP(sK47_skl,sK54_skl)
    | ~ ssItem(sK54_skl) ),
    inference(resolution,[status(thm)],[f9493,f685]) ).

fof(f9498,plain,
    ( memberP(sK52_skl,sK54_skl)
    | memberP(sK47_skl,sK54_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f9494,f430]) ).

fof(f9520,plain,
    ( memberP(sK47_skl,sK54_skl)
    | ~ ssItem(sK54_skl)
    | memberP(sK47_skl,sK54_skl) ),
    inference(resolution,[status(thm)],[f9498,f9486]) ).

fof(f9521,plain,
    ( ~ ssItem(sK54_skl)
    | memberP(sK47_skl,sK54_skl) ),
    inference(duplicate_literals_removal,[status(thm)],[f9520]) ).

fof(f9522,plain,
    memberP(sK47_skl,sK54_skl),
    inference(forward_subsumption_resolution,[status(thm)],[f9521,f430]) ).

fof(f9868,plain,
    ! [X0,X1] :
      ( sK56_skl(X0,cons(X1,nil),cons(X0,nil)) = X1
      | ~ ssItem(X1)
      | ~ memberP(cons(X1,nil),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X1,nil),cons(X0,nil)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f2807,f481]) ).

fof(f9869,plain,
    ! [X0] :
      ( ~ memberP(cons(X0,nil),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X0,nil),cons(X0,nil))
      | ~ ssItem(X0)
      | ~ memberP(cons(X0,nil),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X0,nil),cons(X0,nil)) ),
    inference(resolution,[status(thm)],[f9868,f482]) ).

fof(f9876,plain,
    ! [X0] :
      ( ~ memberP(cons(X0,nil),X0)
      | ~ ssItem(X0)
      | sP1_prd(X0,cons(X0,nil),cons(X0,nil)) ),
    inference(duplicate_literals_removal,[status(thm)],[f9869]) ).

fof(f13561,plain,
    ( nil = sK47_skl
    | ~ memberP(cons(sK51_skl,nil),sK51_skl)
    | ~ ssItem(sK51_skl)
    | sP1_prd(sK51_skl,sK47_skl,cons(sK51_skl,nil)) ),
    inference(paramodulation,[status(thm)],[f8786,f9876]) ).

fof(f13569,plain,
    ( nil = sK47_skl
    | ~ memberP(cons(sK51_skl,nil),sK51_skl)
    | sP1_prd(sK51_skl,sK47_skl,cons(sK51_skl,nil)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f13561,f426]) ).

fof(f14853,plain,
    ( nil = sK47_skl
    | nil = sK47_skl
    | ~ memberP(cons(sK51_skl,nil),sK51_skl)
    | sP1_prd(sK51_skl,sK47_skl,sK47_skl) ),
    inference(paramodulation,[status(thm)],[f8786,f13569]) ).

fof(f14855,plain,
    ( nil = sK47_skl
    | ~ memberP(cons(sK51_skl,nil),sK51_skl)
    | sP1_prd(sK51_skl,sK47_skl,sK47_skl) ),
    inference(duplicate_literals_removal,[status(thm)],[f14853]) ).

fof(f14859,plain,
    ( ~ ssList(nil)
    | ~ ssItem(sK51_skl)
    | nil = sK47_skl
    | sP1_prd(sK51_skl,sK47_skl,sK47_skl) ),
    inference(resolution,[status(thm)],[f14855,f469]) ).

fof(f14863,plain,
    ( ~ ssList(nil)
    | ~ ssItem(sK51_skl)
    | sP1_prd(sK51_skl,sK47_skl,sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f14859,f7897]) ).

fof(f14871,plain,
    ( ~ ssList(nil)
    | sP1_prd(sK51_skl,sK47_skl,sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f14863,f426]) ).

fof(f14873,plain,
    ( cons(sK51_skl,nil) = sK47_skl
    | ~ ssList(nil) ),
    inference(resolution,[status(thm)],[f14871,f444]) ).

fof(f14877,plain,
    cons(sK51_skl,nil) = sK47_skl,
    inference(forward_subsumption_resolution,[status(thm)],[f14873,f223]) ).

fof(f15000,plain,
    ( nil = sK52_skl
    | ~ ssList(sK47_skl)
    | nil != sK47_skl ),
    inference(backward_demodulation,[status(thm)],[f14877,f7821]) ).

fof(f15001,plain,
    ( tl(sK47_skl) = app(tl(app(sK52_skl,sK47_skl)),sK53_skl)
    | nil = app(sK52_skl,cons(sK51_skl,nil))
    | ~ ssList(app(sK52_skl,cons(sK51_skl,nil))) ),
    inference(backward_demodulation,[status(thm)],[f14877,f5921]) ).

fof(f15015,plain,
    app(app(sK52_skl,sK47_skl),sK53_skl) = sK47_skl,
    inference(backward_demodulation,[status(thm)],[f14877,f429]) ).

fof(f15110,plain,
    ! [X0] :
      ( ~ frontsegP(X0,nil)
      | frontsegP(cons(sK51_skl,X0),sK47_skl)
      | ~ ssList(nil)
      | ~ ssList(X0)
      | ~ ssItem(sK51_skl) ),
    inference(paramodulation,[status(thm)],[f14877,f471]) ).

fof(f15128,plain,
    ( tl(sK47_skl) = nil
    | ~ ssItem(sK51_skl)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f14877,f243]) ).

fof(f15129,plain,
    ( hd(sK47_skl) = sK51_skl
    | ~ ssItem(sK51_skl)
    | ~ ssList(nil) ),
    inference(paramodulation,[status(thm)],[f14877,f239]) ).

fof(f15132,plain,
    ! [X0] :
      ( memberP(nil,X0)
      | X0 = sK51_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssList(nil)
      | ~ ssItem(sK51_skl)
      | ~ ssItem(X0) ),
    inference(paramodulation,[status(thm)],[f14877,f275]) ).

fof(f15216,plain,
    ( nil = sK52_skl
    | nil != sK47_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f15000,f420]) ).

fof(f15217,plain,
    ( tl(sK47_skl) = app(tl(app(sK52_skl,sK47_skl)),sK53_skl)
    | nil = app(sK52_skl,cons(sK51_skl,nil))
    | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(forward_demodulation,[status(thm)],[f14877,f15001]) ).

fof(f15218,plain,
    ( tl(sK47_skl) = app(tl(app(sK52_skl,sK47_skl)),sK53_skl)
    | nil = app(sK52_skl,sK47_skl)
    | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(forward_demodulation,[status(thm)],[f14877,f15217]) ).

fof(f15370,plain,
    ! [X0] :
      ( ~ frontsegP(X0,nil)
      | frontsegP(cons(sK51_skl,X0),sK47_skl)
      | ~ ssList(nil)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15110,f426]) ).

fof(f15397,plain,
    ( tl(sK47_skl) = nil
    | ~ ssItem(sK51_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15128,f223]) ).

fof(f15398,plain,
    ( hd(sK47_skl) = sK51_skl
    | ~ ssItem(sK51_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15129,f223]) ).

fof(f15403,plain,
    ! [X0] :
      ( memberP(nil,X0)
      | X0 = sK51_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssList(nil)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15132,f426]) ).

fof(f15433,plain,
    tl(sK47_skl) = nil,
    inference(forward_subsumption_resolution,[status(thm)],[f15397,f426]) ).

fof(f15506,plain,
    hd(sK47_skl) = sK51_skl,
    inference(forward_subsumption_resolution,[status(thm)],[f15398,f426]) ).

fof(f15623,plain,
    ! [X0] :
      ( X0 = sK53_skl
      | app(app(sK52_skl,sK47_skl),X0) != sK47_skl
      | ~ ssList(X0)
      | ~ ssList(app(sK52_skl,sK47_skl))
      | ~ ssList(sK53_skl) ),
    inference(paramodulation,[status(thm)],[f15015,f378]) ).

fof(f15766,plain,
    ! [X0] :
      ( X0 = sK53_skl
      | app(app(sK52_skl,sK47_skl),X0) != sK47_skl
      | ~ ssList(X0)
      | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15623,f428]) ).

fof(f15969,plain,
    ( nil = app(tl(app(sK52_skl,sK47_skl)),sK53_skl)
    | nil = app(sK52_skl,sK47_skl)
    | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(forward_demodulation,[status(thm)],[f15433,f15218]) ).

fof(f15971,plain,
    ( nil = sK53_skl
    | ~ ssList(sK53_skl)
    | ~ ssList(tl(app(sK52_skl,sK47_skl)))
    | nil = app(sK52_skl,sK47_skl)
    | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(resolution,[status(thm)],[f15969,f385]) ).

fof(f15973,plain,
    ( nil = sK53_skl
    | ~ ssList(sK53_skl)
    | nil = app(sK52_skl,sK47_skl)
    | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15971,f241]) ).

fof(f16127,plain,
    ! [X0] :
      ( memberP(nil,X0)
      | X0 = sK51_skl
      | ~ memberP(sK47_skl,X0)
      | ~ ssItem(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15403,f223]) ).

fof(f16129,plain,
    ( memberP(nil,sK54_skl)
    | sK54_skl = sK51_skl
    | ~ ssItem(sK54_skl) ),
    inference(resolution,[status(thm)],[f16127,f9522]) ).

fof(f16145,plain,
    ( memberP(nil,sK54_skl)
    | sK54_skl = sK51_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f16129,f430]) ).

fof(f16159,plain,
    ( ~ ssItem(sK54_skl)
    | sK54_skl = sK51_skl ),
    inference(resolution,[status(thm)],[f16145,f279]) ).

fof(f16162,plain,
    sK54_skl = sK51_skl,
    inference(forward_subsumption_resolution,[status(thm)],[f16159,f430]) ).

fof(f16180,plain,
    ( memberP(sK52_skl,sK51_skl)
    | memberP(sK53_skl,sK54_skl) ),
    inference(backward_demodulation,[status(thm)],[f16162,f685]) ).

fof(f16189,plain,
    ( memberP(sK52_skl,sK51_skl)
    | memberP(sK53_skl,sK51_skl) ),
    inference(forward_demodulation,[status(thm)],[f16162,f16180]) ).

fof(f16255,plain,
    ! [X0] :
      ( ~ frontsegP(X0,nil)
      | frontsegP(cons(sK51_skl,X0),sK47_skl)
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15370,f223]) ).

fof(f16453,plain,
    ( nil = sK53_skl
    | nil = app(sK52_skl,sK47_skl)
    | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f15973,f428]) ).

fof(f16454,plain,
    ( ~ ssList(sK47_skl)
    | ~ ssList(sK52_skl)
    | nil = sK53_skl
    | nil = app(sK52_skl,sK47_skl) ),
    inference(resolution,[status(thm)],[f16453,f245]) ).

fof(f16455,plain,
    ( ~ ssList(sK47_skl)
    | nil = sK53_skl
    | nil = app(sK52_skl,sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f16454,f427]) ).

fof(f16456,plain,
    ( nil = sK53_skl
    | nil = app(sK52_skl,sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f16455,f420]) ).

fof(f16483,plain,
    ( nil = sK53_skl
    | ~ ssList(sK52_skl)
    | rearsegP(nil,sK53_skl) ),
    inference(paramodulation,[status(thm)],[f16456,f5863]) ).

fof(f16561,plain,
    ( nil = sK53_skl
    | rearsegP(nil,sK53_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f16483,f427]) ).

fof(f16630,plain,
    ( nil = sK53_skl
    | ~ ssList(sK53_skl)
    | nil = sK53_skl ),
    inference(resolution,[status(thm)],[f16561,f929]) ).

fof(f16633,plain,
    ( ~ ssList(sK53_skl)
    | nil = sK53_skl ),
    inference(duplicate_literals_removal,[status(thm)],[f16630]) ).

fof(f16634,plain,
    nil = sK53_skl,
    inference(forward_subsumption_resolution,[status(thm)],[f16633,f428]) ).

fof(f16647,plain,
    ( memberP(sK52_skl,sK51_skl)
    | memberP(nil,sK51_skl) ),
    inference(backward_demodulation,[status(thm)],[f16634,f16189]) ).

fof(f16660,plain,
    app(app(sK52_skl,sK47_skl),nil) = sK47_skl,
    inference(backward_demodulation,[status(thm)],[f16634,f15015]) ).

fof(f16700,plain,
    ( sK47_skl = app(sK52_skl,sK47_skl)
    | ~ ssList(app(sK52_skl,sK47_skl)) ),
    inference(paramodulation,[status(thm)],[f16660,f389]) ).

fof(f16917,plain,
    ( ~ ssList(sK47_skl)
    | ~ ssList(sK52_skl)
    | sK47_skl = app(sK52_skl,sK47_skl) ),
    inference(resolution,[status(thm)],[f16700,f245]) ).

fof(f16918,plain,
    ( ~ ssList(sK47_skl)
    | sK47_skl = app(sK52_skl,sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f16917,f427]) ).

fof(f16930,plain,
    sK47_skl = app(sK52_skl,sK47_skl),
    inference(forward_subsumption_resolution,[status(thm)],[f16918,f420]) ).

fof(f16982,plain,
    ( hd(sK47_skl) = hd(sK52_skl)
    | nil = sK52_skl
    | ~ ssList(sK47_skl)
    | ~ ssList(sK52_skl) ),
    inference(paramodulation,[status(thm)],[f16930,f391]) ).

fof(f17078,plain,
    ( sK51_skl = hd(sK52_skl)
    | nil = sK52_skl
    | ~ ssList(sK47_skl)
    | ~ ssList(sK52_skl) ),
    inference(forward_demodulation,[status(thm)],[f15506,f16982]) ).

fof(f17079,plain,
    ( sK51_skl = hd(sK52_skl)
    | nil = sK52_skl
    | ~ ssList(sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f17078,f427]) ).

fof(f17267,plain,
    ! [X0] :
      ( X0 = sK53_skl
      | app(app(sK52_skl,sK47_skl),X0) != sK47_skl
      | ~ ssList(X0)
      | ~ ssList(sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f16930,f15766]) ).

fof(f17268,plain,
    ! [X0] :
      ( X0 = sK53_skl
      | app(sK47_skl,X0) != sK47_skl
      | ~ ssList(X0)
      | ~ ssList(sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f16930,f17267]) ).

fof(f17269,plain,
    ! [X0] :
      ( X0 = nil
      | app(sK47_skl,X0) != sK47_skl
      | ~ ssList(X0)
      | ~ ssList(sK47_skl) ),
    inference(forward_demodulation,[status(thm)],[f16634,f17268]) ).

fof(f17270,plain,
    ! [X0] :
      ( X0 = nil
      | app(sK47_skl,X0) != sK47_skl
      | ~ ssList(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f17269,f420]) ).

fof(f17277,plain,
    ( sK51_skl = hd(sK52_skl)
    | nil = sK52_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f17079,f420]) ).

fof(f17285,plain,
    ( nil = sK52_skl
    | cons(sK51_skl,tl(sK52_skl)) = sK52_skl
    | nil = sK52_skl
    | ~ ssList(sK52_skl) ),
    inference(paramodulation,[status(thm)],[f17277,f374]) ).

fof(f17303,plain,
    ( cons(sK51_skl,tl(sK52_skl)) = sK52_skl
    | nil = sK52_skl
    | ~ ssList(sK52_skl) ),
    inference(duplicate_literals_removal,[status(thm)],[f17285]) ).

fof(f17304,plain,
    ( cons(sK51_skl,tl(sK52_skl)) = sK52_skl
    | nil = sK52_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f17303,f427]) ).

fof(f17309,plain,
    ( nil = sK52_skl
    | ~ frontsegP(tl(sK52_skl),nil)
    | frontsegP(sK52_skl,sK47_skl)
    | ~ ssList(tl(sK52_skl)) ),
    inference(paramodulation,[status(thm)],[f17304,f16255]) ).

fof(f17382,plain,
    ( nil = sK52_skl
    | frontsegP(sK52_skl,sK47_skl)
    | ~ ssList(tl(sK52_skl)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f17309,f295]) ).

fof(f17449,plain,
    ( nil = sK52_skl
    | ~ ssList(sK52_skl)
    | nil = sK52_skl
    | frontsegP(sK52_skl,sK47_skl) ),
    inference(resolution,[status(thm)],[f17382,f241]) ).

fof(f17450,plain,
    ( ~ ssList(sK52_skl)
    | nil = sK52_skl
    | frontsegP(sK52_skl,sK47_skl) ),
    inference(duplicate_literals_removal,[status(thm)],[f17449]) ).

fof(f17451,plain,
    ( nil = sK52_skl
    | frontsegP(sK52_skl,sK47_skl) ),
    inference(forward_subsumption_resolution,[status(thm)],[f17450,f427]) ).

fof(f17454,plain,
    ( sK52_skl = sK47_skl
    | nil = sK52_skl ),
    inference(resolution,[status(thm)],[f17451,f7611]) ).

fof(f17465,plain,
    ( nil = sK52_skl
    | sK47_skl = app(sK47_skl,sK47_skl) ),
    inference(paramodulation,[status(thm)],[f17454,f16930]) ).

fof(f17497,plain,
    ( sK47_skl = nil
    | ~ ssList(sK47_skl)
    | nil = sK52_skl ),
    inference(resolution,[status(thm)],[f17465,f17270]) ).

fof(f17579,plain,
    ( sK47_skl = nil
    | nil = sK52_skl ),
    inference(forward_subsumption_resolution,[status(thm)],[f17497,f420]) ).

fof(f17689,plain,
    ( memberP(nil,sK51_skl)
    | memberP(nil,sK51_skl) ),
    inference(backward_demodulation,[status(thm)],[f17710,f16647]) ).

fof(f17710,plain,
    nil = sK52_skl,
    inference(forward_subsumption_resolution,[status(thm)],[f17579,f15216]) ).

fof(f17713,plain,
    memberP(nil,sK51_skl),
    inference(duplicate_literals_removal,[status(thm)],[f17689]) ).

fof(f17732,plain,
    ~ ssItem(sK51_skl),
    inference(resolution,[status(thm)],[f17713,f279]) ).

fof(f17733,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[f17732,f426]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SWC295+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04  % Command  : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.35  % Computer : n001.cluster.edu
% 0.08/0.35  % Model    : x86_64 x86_64
% 0.08/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35  % Memory   : 8046.5625MB
% 0.08/0.35  % OS       : Linux 6.8.0-71-generic
% 0.08/0.35  % CPULimit : 300
% 0.08/0.35  % WCLimit  : 300
% 0.08/0.35  % DateTime : Mon Sep 21 08:18:44 UTC 2026
% 0.08/0.35  % CPUTime  : 
% 0.08/0.38  % Drodi V4.1.1
% 90.33/11.96  % Refutation found
% 90.33/11.96  % SZS status Theorem for theBenchmark: Theorem is valid
% 90.33/11.96  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 17.69/12.01  % Elapsed time: 11.640047 seconds
% 17.69/12.01  % CPU time: 91.546801 seconds
% 17.69/12.01  % Total memory used: 382.182 MB
% 17.69/12.01  % Net memory used: 358.707 MB
%------------------------------------------------------------------------------