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iProver---3.9.4.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : iProver---3.9.4
% Problem  : SEU157+1 : TPTP v9.3.1. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM

% Computer : n003.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 : Fri Sep 25 02:55:39 PM UTC 2026

% Result   : Theorem 1.33s 1.17s
% Output   : CNFRefutation 1.33s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   19
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   77 (  17 unt;   4 def)
%            Number of atoms       :  253 (  77 equ)
%            Maximal formula atoms :   18 (   3 avg)
%            Number of connectives :  244 (  99   ~; 105   |;  34   &)
%                                         (   4 <=>;   1  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   14 (   5 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of types       :    1 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :    7 (   5 usr;   5 prp; 0-2 aty)
%            Number of functors    :   13 (  13 usr;   4 con; 0-3 aty)
%            Number of variables   :  181 (   0 sgn 157   !;  24   ?;  43   :)

% Comments : 
%------------------------------------------------------------------------------
fof(f2,axiom,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

fof(f3,axiom,
    ! [X0,X1,X2] :
      ( X2 = cartesian_product2(X0,X1)
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ? [X4,X5] :
              ( X3 = ordered_pair(X4,X5)
              & in(X5,X1)
              & in(X4,X0) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_zfmisc_1) ).

fof(f4,axiom,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_tarski) ).

fof(f10,conjecture,
    ! [X0,X1,X2,X3] :
      ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
    <=> ( in(X1,X3)
        & in(X0,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l55_zfmisc_1) ).

fof(f11,negated_conjecture,
    ~ ! [X0,X1,X2,X3] :
        ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
      <=> ( in(X1,X3)
          & in(X0,X2) ) ),
    inference(negated_conjecture,[status(cth)],[f10]) ).

fof(f14,axiom,
    ! [X0,X1,X2,X3] :
      ( ordered_pair(X0,X1) = ordered_pair(X2,X3)
     => ( X1 = X3
        & X0 = X2 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_zfmisc_1) ).

fof(f16,plain,
    ? [X0,X1,X2,X3] :
      ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
    <~> ( in(X1,X3)
        & in(X0,X2) ) ),
    inference(ennf_transformation,[],[f11]) ).

fof(f17,plain,
    ! [X0,X1,X2,X3] :
      ( ordered_pair(X0,X1) != ordered_pair(X2,X3)
      | ( X1 = X3
        & X0 = X2 ) ),
    inference(ennf_transformation,[],[f14]) ).

fof(f18,plain,
    ! [X0,X1,X2] :
      ( ( cartesian_product2(X0,X1) != X2
        | ! [X3] :
            ( ( ~ in(X3,X2)
              | ? [X4,X5] :
                  ( X3 = ordered_pair(X4,X5)
                  & in(X5,X1)
                  & in(X4,X0) ) )
            & ( ! [X4,X5] :
                  ( ordered_pair(X4,X5) != X3
                  | ~ in(X5,X1)
                  | ~ in(X4,X0) )
              | in(X3,X2) ) ) )
      & ( ? [X3] :
            ( ( in(X3,X2)
              | ? [X4,X5] :
                  ( X3 = ordered_pair(X4,X5)
                  & in(X5,X1)
                  & in(X4,X0) ) )
            & ( ~ in(X3,X2)
              | ! [X4,X5] :
                  ( ordered_pair(X4,X5) != X3
                  | ~ in(X5,X1)
                  | ~ in(X4,X0) ) ) )
        | X2 = cartesian_product2(X0,X1) ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f19,plain,
    ! [X0,X1,X2] :
      ( ( cartesian_product2(X0,X1) != X2
        | ! [X8] :
            ( ( ~ in(X8,X2)
              | ? [X11,X12] :
                  ( ordered_pair(X11,X12) = X8
                  & in(X12,X1)
                  & in(X11,X0) ) )
            & ( ! [X9,X10] :
                  ( ordered_pair(X9,X10) != X8
                  | ~ in(X10,X1)
                  | ~ in(X9,X0) )
              | in(X8,X2) ) ) )
      & ( ? [X3] :
            ( ( in(X3,X2)
              | ? [X6,X7] :
                  ( ordered_pair(X6,X7) = X3
                  & in(X7,X1)
                  & in(X6,X0) ) )
            & ( ~ in(X3,X2)
              | ! [X4,X5] :
                  ( ordered_pair(X4,X5) != X3
                  | ~ in(X5,X1)
                  | ~ in(X4,X0) ) ) )
        | X2 = cartesian_product2(X0,X1) ) ),
    inference(rectify,[],[f18]) ).

fof(f20,plain,
    ! [X0,X1,X2] :
      ( ( cartesian_product2(X0,X1) != X2
        | ! [X8] :
            ( ( ~ in(X8,X2)
              | ( ordered_pair(sK3(X0,X1,X8),sK4(X0,X1,X8)) = X8
                & in(sK4(X0,X1,X8),X1)
                & in(sK3(X0,X1,X8),X0) ) )
            & ( ! [X9,X10] :
                  ( ordered_pair(X9,X10) != X8
                  | ~ in(X10,X1)
                  | ~ in(X9,X0) )
              | in(X8,X2) ) ) )
      & ( ( ( in(sK0(X0,X1,X2),X2)
            | ( sK0(X0,X1,X2) = ordered_pair(sK1(X0,X1,X2),sK2(X0,X1,X2))
              & in(sK2(X0,X1,X2),X1)
              & in(sK1(X0,X1,X2),X0) ) )
          & ( ~ in(sK0(X0,X1,X2),X2)
            | ! [X4,X5] :
                ( ordered_pair(X4,X5) != sK0(X0,X1,X2)
                | ~ in(X5,X1)
                | ~ in(X4,X0) ) ) )
        | X2 = cartesian_product2(X0,X1) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3,sK4]),skolemize(X3,sK0(X0,X1,X2)),skolemize(X6,sK1(X0,X1,X2)),skolemize(X7,sK2(X0,X1,X2)),skolemize(X11,sK3(X0,X1,X8)),skolemize(X12,sK4(X0,X1,X8))],[f19]) ).

fof(f21,plain,
    ? [X0,X1,X2,X3] :
      ( ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
        | ( in(X1,X3)
          & in(X0,X2) ) )
      & ( ~ in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
        | ~ in(X1,X3)
        | ~ in(X0,X2) ) ),
    inference(nnf_transformation,[],[f16]) ).

fof(f22,plain,
    ? [X0,X1,X2,X3] :
      ( ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
        | ( in(X1,X3)
          & in(X0,X2) ) )
      & ( ~ in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
        | ~ in(X1,X3)
        | ~ in(X0,X2) ) ),
    inference(flattening,[],[f21]) ).

fof(f23,plain,
    ( ( in(ordered_pair(sK5,sK6),cartesian_product2(sK7,sK8))
      | ( in(sK6,sK8)
        & in(sK5,sK7) ) )
    & ( ~ in(ordered_pair(sK5,sK6),cartesian_product2(sK7,sK8))
      | ~ in(sK6,sK8)
      | ~ in(sK5,sK7) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK5,sK6,sK7,sK8]),skolemize(X0,sK5),skolemize(X1,sK6),skolemize(X2,sK7),skolemize(X3,sK8)],[f22]) ).

fof(f27,plain,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(cnf_transformation,[],[f2]) ).

fof(f28,plain,
    ! [X2,X0,X1,X8] :
      ( cartesian_product2(X0,X1) != X2
      | ~ in(X8,X2)
      | ordered_pair(sK3(X0,X1,X8),sK4(X0,X1,X8)) = X8 ),
    inference(cnf_transformation,[],[f20]) ).

fof(f29,plain,
    ! [X2,X0,X1,X8] :
      ( cartesian_product2(X0,X1) != X2
      | ~ in(X8,X2)
      | in(sK4(X0,X1,X8),X1) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f30,plain,
    ! [X2,X0,X1,X8] :
      ( cartesian_product2(X0,X1) != X2
      | ~ in(X8,X2)
      | in(sK3(X0,X1,X8),X0) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f31,plain,
    ! [X2,X10,X0,X1,X8,X9] :
      ( cartesian_product2(X0,X1) != X2
      | ordered_pair(X9,X10) != X8
      | ~ in(X10,X1)
      | ~ in(X9,X0)
      | in(X8,X2) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f36,plain,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    inference(cnf_transformation,[],[f4]) ).

fof(f38,plain,
    ( in(ordered_pair(sK5,sK6),cartesian_product2(sK7,sK8))
    | in(sK6,sK8) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f39,plain,
    ( in(ordered_pair(sK5,sK6),cartesian_product2(sK7,sK8))
    | in(sK5,sK7) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f40,plain,
    ( ~ in(ordered_pair(sK5,sK6),cartesian_product2(sK7,sK8))
    | ~ in(sK6,sK8)
    | ~ in(sK5,sK7) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f43,plain,
    ! [X2,X3,X0,X1] :
      ( ordered_pair(X0,X1) != ordered_pair(X2,X3)
      | X1 = X3 ),
    inference(cnf_transformation,[],[f17]) ).

fof(f44,plain,
    ! [X2,X3,X0,X1] :
      ( ordered_pair(X0,X1) != ordered_pair(X2,X3)
      | X0 = X2 ),
    inference(cnf_transformation,[],[f17]) ).

fof(f47,plain,
    ! [X2,X10,X0,X1,X8,X9] :
      ( cartesian_product2(X0,X1) != X2
      | unordered_pair(unordered_pair(X9,X10),singleton(X9)) != X8
      | ~ in(X10,X1)
      | ~ in(X9,X0)
      | in(X8,X2) ),
    inference(definition_unfolding,[],[f31,f36]) ).

fof(f48,plain,
    ! [X2,X0,X1,X8] :
      ( cartesian_product2(X0,X1) != X2
      | ~ in(X8,X2)
      | unordered_pair(unordered_pair(sK3(X0,X1,X8),sK4(X0,X1,X8)),singleton(sK3(X0,X1,X8))) = X8 ),
    inference(definition_unfolding,[],[f28,f36]) ).

fof(f50,plain,
    ( ~ in(unordered_pair(unordered_pair(sK5,sK6),singleton(sK5)),cartesian_product2(sK7,sK8))
    | ~ in(sK6,sK8)
    | ~ in(sK5,sK7) ),
    inference(definition_unfolding,[],[f40,f36]) ).

fof(f51,plain,
    ( in(unordered_pair(unordered_pair(sK5,sK6),singleton(sK5)),cartesian_product2(sK7,sK8))
    | in(sK5,sK7) ),
    inference(definition_unfolding,[],[f39,f36]) ).

fof(f52,plain,
    ( in(unordered_pair(unordered_pair(sK5,sK6),singleton(sK5)),cartesian_product2(sK7,sK8))
    | in(sK6,sK8) ),
    inference(definition_unfolding,[],[f38,f36]) ).

fof(f53,plain,
    ! [X2,X3,X0,X1] :
      ( unordered_pair(unordered_pair(X0,X1),singleton(X0)) != unordered_pair(unordered_pair(X2,X3),singleton(X2))
      | X0 = X2 ),
    inference(definition_unfolding,[],[f44,f36,f36]) ).

fof(f54,plain,
    ! [X2,X3,X0,X1] :
      ( unordered_pair(unordered_pair(X0,X1),singleton(X0)) != unordered_pair(unordered_pair(X2,X3),singleton(X2))
      | X1 = X3 ),
    inference(definition_unfolding,[],[f43,f36,f36]) ).

fof(f55,plain,
    ! [X2,X10,X0,X1,X9] :
      ( cartesian_product2(X0,X1) != X2
      | ~ in(X10,X1)
      | ~ in(X9,X0)
      | in(unordered_pair(unordered_pair(X9,X10),singleton(X9)),X2) ),
    inference(equality_resolution,[],[f47]) ).

fof(f56,plain,
    ! [X10,X0,X1,X9] :
      ( ~ in(X10,X1)
      | ~ in(X9,X0)
      | in(unordered_pair(unordered_pair(X9,X10),singleton(X9)),cartesian_product2(X0,X1)) ),
    inference(equality_resolution,[],[f55]) ).

fof(f57,plain,
    ! [X0,X1,X8] :
      ( ~ in(X8,cartesian_product2(X0,X1))
      | in(sK3(X0,X1,X8),X0) ),
    inference(equality_resolution,[],[f30]) ).

fof(f58,plain,
    ! [X0,X1,X8] :
      ( ~ in(X8,cartesian_product2(X0,X1))
      | in(sK4(X0,X1,X8),X1) ),
    inference(equality_resolution,[],[f29]) ).

fof(f59,plain,
    ! [X0,X1,X8] :
      ( ~ in(X8,cartesian_product2(X0,X1))
      | unordered_pair(unordered_pair(sK3(X0,X1,X8),sK4(X0,X1,X8)),singleton(sK3(X0,X1,X8))) = X8 ),
    inference(equality_resolution,[],[f48]) ).

tcf(c_50,plain,
    ! [X0: $i,X1: $i] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(cnf_transformation,[],[f27]) ).

tcf(c_55,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( in(unordered_pair(unordered_pair(X0,X2),singleton(X0)),cartesian_product2(X1,X3))
      | ~ in(X2,X3)
      | ~ in(X0,X1) ),
    inference(cnf_transformation,[],[f56]) ).

tcf(c_56,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( in(sK3(X1,X2,X0),X1)
      | ~ in(X0,cartesian_product2(X1,X2)) ),
    inference(cnf_transformation,[],[f57]) ).

tcf(c_57,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( in(sK4(X1,X2,X0),X2)
      | ~ in(X0,cartesian_product2(X1,X2)) ),
    inference(cnf_transformation,[],[f58]) ).

tcf(c_58,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( unordered_pair(unordered_pair(sK3(X1,X2,X0),sK4(X1,X2,X0)),singleton(sK3(X1,X2,X0))) = X0 )
      | ~ in(X0,cartesian_product2(X1,X2)) ),
    inference(cnf_transformation,[],[f59]) ).

tcf(c_60,negated_conjecture,
    ( ~ in(sK6,sK8)
    | ~ in(sK5,sK7)
    | ~ in(unordered_pair(unordered_pair(sK5,sK6),singleton(sK5)),cartesian_product2(sK7,sK8)) ),
    inference(cnf_transformation,[],[f50]) ).

tcf(c_61,negated_conjecture,
    ( in(sK5,sK7)
    | in(unordered_pair(unordered_pair(sK5,sK6),singleton(sK5)),cartesian_product2(sK7,sK8)) ),
    inference(cnf_transformation,[],[f51]) ).

tcf(c_62,negated_conjecture,
    ( in(sK6,sK8)
    | in(unordered_pair(unordered_pair(sK5,sK6),singleton(sK5)),cartesian_product2(sK7,sK8)) ),
    inference(cnf_transformation,[],[f52]) ).

tcf(c_65,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( ( X0 = X2 )
      | ( unordered_pair(unordered_pair(X0,X1),singleton(X0)) != unordered_pair(unordered_pair(X2,X3),singleton(X2)) ) ),
    inference(cnf_transformation,[],[f53]) ).

tcf(c_66,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( ( X1 = X3 )
      | ( unordered_pair(unordered_pair(X0,X1),singleton(X0)) != unordered_pair(unordered_pair(X2,X3),singleton(X2)) ) ),
    inference(cnf_transformation,[],[f54]) ).

tcf(c_135,plain,
    ( ~ in(sK6,sK8)
    | ~ in(sK5,sK7) ),
    inference(backward_subsumption_resolution,[status(thm)],[c_60,c_55]) ).

tcf(c_171,plain,
    ( in(sK6,sK8)
    | in(unordered_pair(singleton(sK5),unordered_pair(sK5,sK6)),cartesian_product2(sK7,sK8)) ),
    inference(demodulation,[status(thm)],[c_62,c_50]) ).

tcf(c_178,plain,
    ( in(sK5,sK7)
    | in(unordered_pair(singleton(sK5),unordered_pair(sK5,sK6)),cartesian_product2(sK7,sK8)) ),
    inference(demodulation,[status(thm)],[c_61,c_50]) ).

tcf(c_207,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( ( X1 = X3 )
      | ( unordered_pair(singleton(X0),unordered_pair(X0,X1)) != unordered_pair(singleton(X2),unordered_pair(X2,X3)) ) ),
    inference(demodulation,[status(thm)],[c_66,c_50]) ).

tcf(c_214,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( ( X0 = X2 )
      | ( unordered_pair(singleton(X0),unordered_pair(X0,X1)) != unordered_pair(singleton(X2),unordered_pair(X2,X3)) ) ),
    inference(demodulation,[status(thm)],[c_65,c_50]) ).

tcf(c_221,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( unordered_pair(singleton(sK3(X1,X2,X0)),unordered_pair(sK3(X1,X2,X0),sK4(X1,X2,X0))) = X0 )
      | ~ in(X0,cartesian_product2(X1,X2)) ),
    inference(demodulation,[status(thm)],[c_58,c_50]) ).

tcf(c_277,definition,
    iPr_def_10 = singleton(sK5),
    introduced(definition,[new_symbols(definition,[iPr_def_10])],[]) ).

tcf(c_278,definition,
    iPr_def_11 = unordered_pair(sK5,sK6),
    introduced(definition,[new_symbols(definition,[iPr_def_11])],[]) ).

tcf(c_279,definition,
    iPr_def_12 = unordered_pair(iPr_def_10,iPr_def_11),
    introduced(definition,[new_symbols(definition,[iPr_def_12])],[]) ).

tcf(c_280,definition,
    iPr_def_13 = cartesian_product2(sK7,sK8),
    introduced(definition,[new_symbols(definition,[iPr_def_13])],[]) ).

tcf(c_281,plain,
    ( in(iPr_def_12,iPr_def_13)
    | in(sK5,sK7) ),
    inference(demodulation,[status(thm)],[c_178,c_280,c_278,c_277,c_279]) ).

tcf(c_282,plain,
    ( in(iPr_def_12,iPr_def_13)
    | in(sK6,sK8) ),
    inference(demodulation,[status(thm)],[c_171]) ).

tcf(c_283,plain,
    ( ~ in(sK6,sK8)
    | ~ in(sK5,sK7) ),
    inference(demodulation,[status(thm)],[c_135]) ).

tcf(c_296,plain,
    in(iPr_def_12,iPr_def_13),
    inference(global_subsumption_just,[status(thm)],[c_281,c_135,c_281,c_282]) ).

tcf(c_538,plain,
    in(iPr_def_12,iPr_def_13),
    inference(global_subsumption_just,[status(thm)],[c_281,c_296]) ).

tcf(c_701,plain,
    ! [X0: $i,X1: $i] :
      ( ( X1 = sK6 )
      | ( unordered_pair(singleton(X0),unordered_pair(X0,X1)) != unordered_pair(singleton(sK5),iPr_def_11) ) ),
    inference(superposition,[status(thm)],[c_278,c_207]) ).

tcf(c_706,plain,
    ! [X0: $i,X1: $i] :
      ( ( X1 = sK6 )
      | ( unordered_pair(singleton(X0),unordered_pair(X0,X1)) != iPr_def_12 ) ),
    inference(light_normalisation,[status(thm)],[c_701,c_277,c_279]) ).

tcf(c_732,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = sK5 )
      | ( unordered_pair(singleton(X0),unordered_pair(X0,X1)) != unordered_pair(singleton(sK5),iPr_def_11) ) ),
    inference(superposition,[status(thm)],[c_278,c_214]) ).

tcf(c_737,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = sK5 )
      | ( unordered_pair(singleton(X0),unordered_pair(X0,X1)) != iPr_def_12 ) ),
    inference(light_normalisation,[status(thm)],[c_732,c_277,c_279]) ).

tcf(c_910,plain,
    ! [X0: $i] :
      ( ( unordered_pair(singleton(sK3(sK7,sK8,X0)),unordered_pair(sK3(sK7,sK8,X0),sK4(sK7,sK8,X0))) = X0 )
      | ~ in(X0,iPr_def_13) ),
    inference(superposition,[status(thm)],[c_280,c_221]) ).

tcf(c_2756,plain,
    unordered_pair(singleton(sK3(sK7,sK8,iPr_def_12)),unordered_pair(sK3(sK7,sK8,iPr_def_12),sK4(sK7,sK8,iPr_def_12))) = iPr_def_12,
    inference(superposition,[status(thm)],[c_538,c_910]) ).

tcf(c_2885,plain,
    sK3(sK7,sK8,iPr_def_12) = sK5,
    inference(superposition,[status(thm)],[c_2756,c_737]) ).

tcf(c_2886,plain,
    sK4(sK7,sK8,iPr_def_12) = sK6,
    inference(superposition,[status(thm)],[c_2756,c_706]) ).

tcf(c_3322,plain,
    ( in(sK5,sK7)
    | ~ in(iPr_def_12,cartesian_product2(sK7,sK8)) ),
    inference(superposition,[status(thm)],[c_2885,c_56]) ).

tcf(c_3324,plain,
    ( in(sK5,sK7)
    | ~ in(iPr_def_12,iPr_def_13) ),
    inference(light_normalisation,[status(thm)],[c_3322,c_280]) ).

tcf(c_3325,plain,
    in(sK5,sK7),
    inference(forward_subsumption_resolution,[status(thm)],[c_3324,c_538]) ).

tcf(c_3332,plain,
    ~ in(sK6,sK8),
    inference(backward_subsumption_resolution,[status(thm)],[c_283,c_3325]) ).

tcf(c_3344,plain,
    ( in(sK6,sK8)
    | ~ in(iPr_def_12,cartesian_product2(sK7,sK8)) ),
    inference(superposition,[status(thm)],[c_2886,c_57]) ).

tcf(c_3346,plain,
    ( in(sK6,sK8)
    | ~ in(iPr_def_12,iPr_def_13) ),
    inference(light_normalisation,[status(thm)],[c_3344,c_280]) ).

tcf(c_3347,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_3346,c_3332,c_538]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU157+1 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04  % Command  : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.09/0.36  % Computer : n003.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
% 0.09/0.36  % CPULimit : 300
% 0.03/0.36  % WCLimit  : 300
% 0.03/0.36  % DateTime : Thu Sep 24 13:00:36 UTC 2026
% 0.03/0.36  % CPUTime  : 
% 0.03/0.36  Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.03/0.40  Running first-order theorem proving
% 0.03/0.40  Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.03/0.41  
% 0.03/0.41  % ======== iProver multi-core TPTP/SMT =========
% 0.03/0.41  
% 0.03/0.41  % Detected problem language: tptp
% 0.03/0.42  % Proving...
% 1.33/1.17  % SZS status Started for theBenchmark.p
% 1.33/1.17  % SZS status Theorem for theBenchmark.p
% 1.33/1.17  
% 1.33/1.17  %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.33/1.17  
% 1.33/1.17  % ------  iProver source info
% 1.33/1.17  
% 1.33/1.17  % git: date: 2026-07-19 20:42:38 +0200
% 1.33/1.17  % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.33/1.17  % git: non_committed_changes: false
% 1.33/1.17  
% 1.33/1.17  % ------ Parsing...
% 1.33/1.17  % ------ Clausification by vclausify_rel  & Parsing by iProver...% 
% 1.33/1.17  
% 1.33/1.17  % ------ Preprocessing... sup_sim: 9  sf_s  rm: 1 0s  sf_e  pe_s  pe_e % 
% 1.33/1.17  
% 1.33/1.17  % ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e % 
% 1.33/1.17  
% 1.33/1.17  % ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 1.33/1.17  % ------ Proving...
% 1.33/1.17  % ------ Problem Properties 
% 1.33/1.17  
% 1.33/1.17  % 
% 1.33/1.17  % clauses                               22
% 1.33/1.17  % conjectures                           0
% 1.33/1.17  % EPR                                   6
% 1.33/1.17  % Horn                                  17
% 1.33/1.17  % unary                                 8
% 1.33/1.17  % binary                                9
% 1.33/1.17  % lits                                  43
% 1.33/1.17  % lits eq                               16
% 1.33/1.17  % fd_pure                               0
% 1.33/1.17  % fd_pseudo                             0
% 1.33/1.17  % fd_cond                               0
% 1.33/1.17  % fd_pseudo_cond                        6
% 1.33/1.17  % AC symbols                            0
% 1.33/1.17  
% 1.33/1.17  % ------ Schedule dynamic 5 is on 
% 1.33/1.17  
% 1.33/1.17  % ------ no conjectures: strip conj schedule 
% 1.33/1.17  
% 1.33/1.17  % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" stripped conjectures Time Limit: 10.
% 1.33/1.17  
% 1.33/1.17  
% 1.33/1.17  % ------ 
% 1.33/1.17  % Current options:
% 1.33/1.17  % ------ 
% 1.33/1.17  
% 1.33/1.17  
% 1.33/1.17  % 
% 1.33/1.17  
% 1.33/1.17  % ------ Proving...
% 1.33/1.17  % 
% 1.33/1.17  
% 1.33/1.17  % SZS status Theorem for theBenchmark.p
% 1.33/1.17  
% 1.33/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.33/1.17  
% 1.33/1.17  
%------------------------------------------------------------------------------