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FindProof---0.1.THM-Prf.s

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%------------------------------------------------------------------------------
% File     : FindProof---0.1
% Problem  : SEU341+2 : TPTP v9.3.1. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300

% Computer : n008.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 02:51:47 PM UTC 2026

% Result   : Theorem 75.06s 10.01s
% Output   : Proof 75.06s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   32
%            Number of leaves      :   48
% Syntax   : Number of formulae    :  279 ( 127 unt;   0 def)
%            Number of atoms       :  940 ( 211 equ)
%            Maximal formula atoms :   49 (   3 avg)
%            Number of connectives : 1138 ( 477   ~; 294   |; 295   &)
%                                         (  12 <=>;  60  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   27 (   4 avg)
%            Maximal term depth    :    7 (   1 avg)
%            Number of predicates  :   41 (  39 usr;   1 prp; 0-3 aty)
%            Number of functors    :   51 (  51 usr;  19 con; 0-4 aty)
%            Number of variables   :  452 (  23 sgn 285   !;  42   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f50,axiom,
    ! [A] :
      ( ( top_str(A)
        & topological_space(A)
        & ~ empty_carrier(A) )
     => ! [B] :
          ( element(B,the_carrier(A))
         => ! [C] :
              ( element(C,powerset(the_carrier(A)))
             => ( point_neighbourhood(C,A,B)
              <=> in(B,interior(A,C)) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_connsp_2) ).

fof(f50_nnf,plain,
    ! [A] :
      ( ! [B] :
          ( ! [C] :
              ( ( ( ~ in(B,interior(A,C))
                  | point_neighbourhood(C,A,B) )
                & ( in(B,interior(A,C))
                  | ~ point_neighbourhood(C,A,B) ) )
              | ~ element(C,powerset(the_carrier(A))) )
          | ~ element(B,the_carrier(A)) )
      | ~ top_str(A)
      | ~ topological_space(A)
      | empty_carrier(A) ),
    inference(nnf_transformation,[status(thm)],[f50]) ).

fof(f50_sk,plain,
    ! [A,B,C] :
      ( ( ( ~ in(B,interior(A,C))
          | point_neighbourhood(C,A,B) )
        & ( in(B,interior(A,C))
          | ~ point_neighbourhood(C,A,B) ) )
      | ~ element(C,powerset(the_carrier(A)))
      | ~ element(B,the_carrier(A))
      | ~ top_str(A)
      | ~ topological_space(A)
      | empty_carrier(A) ),
    inference(skolemisation,[status(esa)],[f50_nnf]) ).

cnf(c168,plain,
    ( ~ in(X1,interior(X0,X2))
    | point_neighbourhood(X2,X0,X1)
    | ~ element(X2,powerset(the_carrier(X0)))
    | ~ element(X1,the_carrier(X0))
    | ~ top_str(X0)
    | ~ topological_space(X0)
    | empty_carrier(X0) ),
    inference(cnf_transformation,[status(esa)],[f50_sk]) ).

cnf(t193,plain,
    ifeq(topological_space(X1),true,ifeq(top_str(X1),true,ifeq(element(X2,the_carrier(X1)),true,ifeq(element(X3,powerset(the_carrier(X1))),true,ifeq(in(X2,interior(X1,X3)),true,or(empty_carrier(X1),point_neighbourhood(X3,X1,X2)),true),true),true),true),true) = true,
    inference(equality_encoding,[status(esa)],[c168]) ).

cnf(t366,plain,
    ifeq(topological_space(X1),true,ifeq(top_str(X1),true,ifeq(element(X2,the_carrier(X1)),true,ifeq(element(X3,powerset(the_carrier(X1))),true,ifeq(in(X2,interior(X1,X3)),true,or(empty_carrier(X1),point_neighbourhood(X3,X1,X2)),true),true),true),true),true) = true,
    inference(orient,[status(thm)],[t193]) ).

fof(f530,conjecture,
    ! [A] :
      ( ( top_str(A)
        & topological_space(A)
        & ~ empty_carrier(A) )
     => ! [B] :
          ( element(B,powerset(the_carrier(A)))
         => ! [C] :
              ( element(C,the_carrier(A))
             => ( ( in(C,B)
                  & open_subset(B,A) )
               => point_neighbourhood(B,A,C) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t5_connsp_2) ).

fof(f530_neg,negated_conjecture,
    ~ ! [A] :
        ( ( top_str(A)
          & topological_space(A)
          & ~ empty_carrier(A) )
       => ! [B] :
            ( element(B,powerset(the_carrier(A)))
           => ! [C] :
                ( element(C,the_carrier(A))
               => ( ( in(C,B)
                    & open_subset(B,A) )
                 => point_neighbourhood(B,A,C) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f530]) ).

fof(f530_nnf,plain,
    ? [A] :
      ( ? [B] :
          ( ? [C] :
              ( ~ point_neighbourhood(B,A,C)
              & in(C,B)
              & open_subset(B,A)
              & element(C,the_carrier(A)) )
          & element(B,powerset(the_carrier(A))) )
      & top_str(A)
      & topological_space(A)
      & ~ empty_carrier(A) ),
    inference(nnf_transformation,[status(thm)],[f530_neg]) ).

fof(f530_sk,plain,
    ( ~ point_neighbourhood(sk424,sk423,sk425)
    & in(sk425,sk424)
    & open_subset(sk424,sk423)
    & element(sk425,the_carrier(sk423))
    & element(sk424,powerset(the_carrier(sk423)))
    & top_str(sk423)
    & topological_space(sk423)
    & ~ empty_carrier(sk423) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk423,sk424,sk425])],[f530_nnf]) ).

cnf(c2788,plain,
    ~ point_neighbourhood(sk424,sk423,sk425),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t58,plain,
    point_neighbourhood(sk424,sk423,sk425) = false,
    inference(equality_encoding,[status(esa)],[c2788]) ).

cnf(t1081,plain,
    point_neighbourhood(sk424,sk423,sk425) = false,
    inference(orient,[status(thm)],[t58]) ).

cnf(t1082,plain,
    true = ifeq(topological_space(sk423),true,ifeq(top_str(sk423),true,ifeq(element(sk425,the_carrier(sk423)),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),true),true),true),
    inference(cp,[status(thm)],[t366,t1081]) ).

cnf(c2782,plain,
    topological_space(sk423),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t20,plain,
    topological_space(sk423) = true,
    inference(equality_encoding,[status(esa)],[c2782]) ).

cnf(t910,plain,
    topological_space(sk423) = true,
    inference(orient,[status(thm)],[t20]) ).

cnf(t21615,plain,
    true = ifeq(true,true,ifeq(top_str(sk423),true,ifeq(element(sk425,the_carrier(sk423)),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),true),true),true),
    inference(step,[status(thm)],[t1082,t910]) ).

cnf(t61,plain,
    ifeq(X1,X1,X2,X3) = X2,
    introduced(definition) ).

cnf(t200,plain,
    ifeq(X1,X1,X2,X3) = X2,
    inference(orient,[status(thm)],[t61]) ).

cnf(t21616,plain,
    true = ifeq(top_str(sk423),true,ifeq(element(sk425,the_carrier(sk423)),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),true),true),
    inference(step,[status(thm)],[t21615,t200]) ).

cnf(c2783,plain,
    top_str(sk423),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t19,plain,
    top_str(sk423) = true,
    inference(equality_encoding,[status(esa)],[c2783]) ).

cnf(t811,plain,
    top_str(sk423) = true,
    inference(orient,[status(thm)],[t19]) ).

cnf(t21617,plain,
    true = ifeq(true,true,ifeq(element(sk425,the_carrier(sk423)),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),true),true),
    inference(step,[status(thm)],[t21616,t811]) ).

cnf(t21618,plain,
    true = ifeq(element(sk425,the_carrier(sk423)),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),true),
    inference(step,[status(thm)],[t21617,t200]) ).

cnf(c2785,plain,
    element(sk425,the_carrier(sk423)),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t56,plain,
    element(sk425,the_carrier(sk423)) = true,
    inference(equality_encoding,[status(esa)],[c2785]) ).

cnf(t503,plain,
    element(sk425,the_carrier(sk423)) = true,
    inference(orient,[status(thm)],[t56]) ).

cnf(t21619,plain,
    true = ifeq(true,true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),true),
    inference(step,[status(thm)],[t21618,t503]) ).

cnf(t21620,plain,
    true = ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),
    inference(step,[status(thm)],[t21619,t200]) ).

cnf(c2784,plain,
    element(sk424,powerset(the_carrier(sk423))),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t60,plain,
    element(sk424,powerset(the_carrier(sk423))) = true,
    inference(equality_encoding,[status(esa)],[c2784]) ).

cnf(t456,plain,
    element(sk424,powerset(the_carrier(sk423))) = true,
    inference(orient,[status(thm)],[t60]) ).

cnf(t21621,plain,
    true = ifeq(true,true,ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),true),
    inference(step,[status(thm)],[t21620,t456]) ).

cnf(t21622,plain,
    true = ifeq(in(sk425,interior(sk423,sk424)),true,or(empty_carrier(sk423),false),true),
    inference(step,[status(thm)],[t21621,t200]) ).

fof(f65,axiom,
    ! [A] :
      ( top_str(A)
     => ! [B] :
          ( element(B,powerset(the_carrier(A)))
         => interior(A,B) = subset_complement(the_carrier(A),topstr_closure(A,subset_complement(the_carrier(A),B))) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_tops_1) ).

fof(f65_nnf,plain,
    ! [A] :
      ( ! [B] :
          ( interior(A,B) = subset_complement(the_carrier(A),topstr_closure(A,subset_complement(the_carrier(A),B)))
          | ~ element(B,powerset(the_carrier(A))) )
      | ~ top_str(A) ),
    inference(nnf_transformation,[status(thm)],[f65]) ).

fof(f65_sk,plain,
    ! [A,B] :
      ( interior(A,B) = subset_complement(the_carrier(A),topstr_closure(A,subset_complement(the_carrier(A),B)))
      | ~ element(B,powerset(the_carrier(A)))
      | ~ top_str(A) ),
    inference(skolemisation,[status(esa)],[f65_nnf]) ).

cnf(c246,plain,
    ( interior(X0,X1) = subset_complement(the_carrier(X0),topstr_closure(X0,subset_complement(the_carrier(X0),X1)))
    | ~ element(X1,powerset(the_carrier(X0)))
    | ~ top_str(X0) ),
    inference(cnf_transformation,[status(esa)],[f65_sk]) ).

cnf(t192,plain,
    ifeq(top_str(X1),true,ifeq(element(X2,powerset(the_carrier(X1))),true,interior(X1,X2),subset_complement(the_carrier(X1),topstr_closure(X1,subset_complement(the_carrier(X1),X2)))),subset_complement(the_carrier(X1),topstr_closure(X1,subset_complement(the_carrier(X1),X2)))) = subset_complement(the_carrier(X1),topstr_closure(X1,subset_complement(the_carrier(X1),X2))),
    inference(equality_encoding,[status(esa)],[c246]) ).

cnf(t959,plain,
    ifeq(top_str(X1),true,ifeq(element(X2,powerset(the_carrier(X1))),true,interior(X1,X2),subset_complement(the_carrier(X1),topstr_closure(X1,subset_complement(the_carrier(X1),X2)))),subset_complement(the_carrier(X1),topstr_closure(X1,subset_complement(the_carrier(X1),X2)))) = subset_complement(the_carrier(X1),topstr_closure(X1,subset_complement(the_carrier(X1),X2))),
    inference(orient,[status(thm)],[t192]) ).

fof(f521,lemma,
    ! [A] :
      ( top_str(A)
     => ! [B] :
          ( element(B,powerset(the_carrier(A)))
         => ( ( ( topstr_closure(A,B) = B
                & topological_space(A) )
             => closed_subset(B,A) )
            & ( closed_subset(B,A)
             => topstr_closure(A,B) = B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t52_pre_topc) ).

fof(f521_nnf,plain,
    ! [A] :
      ( ! [B] :
          ( ( ( closed_subset(B,A)
              | topstr_closure(A,B) != B
              | ~ topological_space(A) )
            & ( topstr_closure(A,B) = B
              | ~ closed_subset(B,A) ) )
          | ~ element(B,powerset(the_carrier(A))) )
      | ~ top_str(A) ),
    inference(nnf_transformation,[status(thm)],[f521]) ).

fof(f521_sk,plain,
    ! [A,B] :
      ( ( ( closed_subset(B,A)
          | topstr_closure(A,B) != B
          | ~ topological_space(A) )
        & ( topstr_closure(A,B) = B
          | ~ closed_subset(B,A) ) )
      | ~ element(B,powerset(the_carrier(A)))
      | ~ top_str(A) ),
    inference(skolemisation,[status(esa)],[f521_nnf]) ).

cnf(c2751,plain,
    ( topstr_closure(X0,X1) = X1
    | ~ closed_subset(X1,X0)
    | ~ element(X1,powerset(the_carrier(X0)))
    | ~ top_str(X0) ),
    inference(cnf_transformation,[status(esa)],[f521_sk]) ).

cnf(t176,plain,
    ifeq(top_str(X1),true,ifeq(element(X2,powerset(the_carrier(X1))),true,ifeq(closed_subset(X2,X1),true,topstr_closure(X1,X2),X2),X2),X2) = X2,
    inference(equality_encoding,[status(esa)],[c2751]) ).

cnf(t209,plain,
    ifeq(top_str(X1),true,ifeq(element(X2,powerset(the_carrier(X1))),true,ifeq(closed_subset(X2,X1),true,topstr_closure(X1,X2),X2),X2),X2) = X2,
    inference(orient,[status(thm)],[t176]) ).

fof(f156,axiom,
    ! [A,B] :
      ( element(B,powerset(A))
     => element(subset_complement(A,B),powerset(A)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_subset_1) ).

fof(f156_nnf,plain,
    ! [A,B] :
      ( element(subset_complement(A,B),powerset(A))
      | ~ element(B,powerset(A)) ),
    inference(nnf_transformation,[status(thm)],[f156]) ).

fof(f156_sk,plain,
    ! [B,A] :
      ( element(subset_complement(A,B),powerset(A))
      | ~ element(B,powerset(A)) ),
    inference(skolemisation,[status(esa)],[f156_nnf]) ).

cnf(c571,plain,
    ( element(subset_complement(X0,X1),powerset(X0))
    | ~ element(X1,powerset(X0)) ),
    inference(cnf_transformation,[status(esa)],[f156_sk]) ).

cnf(t131,plain,
    ifeq(element(X1,powerset(X2)),true,element(subset_complement(X2,X1),powerset(X2)),true) = true,
    inference(equality_encoding,[status(esa)],[c571]) ).

cnf(t289,plain,
    ifeq(element(X1,powerset(X2)),true,element(subset_complement(X2,X1),powerset(X2)),true) = true,
    inference(orient,[status(thm)],[t131]) ).

cnf(t462,plain,
    true = ifeq(true,true,element(subset_complement(the_carrier(sk423),sk424),powerset(the_carrier(sk423))),true),
    inference(cp,[status(thm)],[t289,t456]) ).

cnf(t21026,plain,
    true = element(subset_complement(the_carrier(sk423),sk424),powerset(the_carrier(sk423))),
    inference(step,[status(thm)],[t462,t200]) ).

cnf(t5208,plain,
    element(subset_complement(the_carrier(sk423),sk424),powerset(the_carrier(sk423))) = true,
    inference(orient,[status(thm)],[t21026]) ).

cnf(t5219,plain,
    subset_complement(the_carrier(sk423),sk424) = ifeq(top_str(sk423),true,ifeq(true,true,ifeq(closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true,topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),
    inference(cp,[status(thm)],[t209,t5208]) ).

cnf(t21029,plain,
    subset_complement(the_carrier(sk423),sk424) = ifeq(true,true,ifeq(true,true,ifeq(closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true,topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),
    inference(step,[status(thm)],[t5219,t811]) ).

cnf(t21030,plain,
    subset_complement(the_carrier(sk423),sk424) = ifeq(true,true,ifeq(closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true,topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),
    inference(step,[status(thm)],[t21029,t200]) ).

cnf(t21031,plain,
    subset_complement(the_carrier(sk423),sk424) = ifeq(closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true,topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),
    inference(step,[status(thm)],[t21030,t200]) ).

fof(f470,lemma,
    ! [A] :
      ( top_str(A)
     => ! [B] :
          ( element(B,powerset(the_carrier(A)))
         => ( open_subset(B,A)
          <=> closed_subset(subset_complement(the_carrier(A),B),A) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t30_tops_1) ).

fof(f470_nnf,plain,
    ! [A] :
      ( ! [B] :
          ( ( ( ~ closed_subset(subset_complement(the_carrier(A),B),A)
              | open_subset(B,A) )
            & ( closed_subset(subset_complement(the_carrier(A),B),A)
              | ~ open_subset(B,A) ) )
          | ~ element(B,powerset(the_carrier(A))) )
      | ~ top_str(A) ),
    inference(nnf_transformation,[status(thm)],[f470]) ).

fof(f470_sk,plain,
    ! [A,B] :
      ( ( ( ~ closed_subset(subset_complement(the_carrier(A),B),A)
          | open_subset(B,A) )
        & ( closed_subset(subset_complement(the_carrier(A),B),A)
          | ~ open_subset(B,A) ) )
      | ~ element(B,powerset(the_carrier(A)))
      | ~ top_str(A) ),
    inference(skolemisation,[status(esa)],[f470_nnf]) ).

cnf(c2662,plain,
    ( closed_subset(subset_complement(the_carrier(X0),X1),X0)
    | ~ open_subset(X1,X0)
    | ~ element(X1,powerset(the_carrier(X0)))
    | ~ top_str(X0) ),
    inference(cnf_transformation,[status(esa)],[f470_sk]) ).

cnf(t184,plain,
    ifeq(top_str(X1),true,ifeq(element(X2,powerset(the_carrier(X1))),true,ifeq(open_subset(X2,X1),true,closed_subset(subset_complement(the_carrier(X1),X2),X1),true),true),true) = true,
    inference(equality_encoding,[status(esa)],[c2662]) ).

cnf(t340,plain,
    ifeq(top_str(X1),true,ifeq(element(X2,powerset(the_carrier(X1))),true,ifeq(open_subset(X2,X1),true,closed_subset(subset_complement(the_carrier(X1),X2),X1),true),true),true) = true,
    inference(orient,[status(thm)],[t184]) ).

cnf(c2786,plain,
    open_subset(sk424,sk423),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t38,plain,
    open_subset(sk424,sk423) = true,
    inference(equality_encoding,[status(esa)],[c2786]) ).

cnf(t922,plain,
    open_subset(sk424,sk423) = true,
    inference(orient,[status(thm)],[t38]) ).

cnf(t924,plain,
    true = ifeq(top_str(sk423),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(true,true,closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true),true),true),
    inference(cp,[status(thm)],[t340,t922]) ).

cnf(t20872,plain,
    true = ifeq(true,true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(true,true,closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true),true),true),
    inference(step,[status(thm)],[t924,t811]) ).

cnf(t20873,plain,
    true = ifeq(element(sk424,powerset(the_carrier(sk423))),true,ifeq(true,true,closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true),true),
    inference(step,[status(thm)],[t20872,t200]) ).

cnf(t20874,plain,
    true = ifeq(true,true,ifeq(true,true,closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true),true),
    inference(step,[status(thm)],[t20873,t456]) ).

cnf(t20875,plain,
    true = ifeq(true,true,closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),true),
    inference(step,[status(thm)],[t20874,t200]) ).

cnf(t20876,plain,
    true = closed_subset(subset_complement(the_carrier(sk423),sk424),sk423),
    inference(step,[status(thm)],[t20875,t200]) ).

cnf(t2508,plain,
    closed_subset(subset_complement(the_carrier(sk423),sk424),sk423) = true,
    inference(orient,[status(thm)],[t20876]) ).

cnf(t21032,plain,
    subset_complement(the_carrier(sk423),sk424) = ifeq(true,true,topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)),subset_complement(the_carrier(sk423),sk424)),
    inference(step,[status(thm)],[t21031,t2508]) ).

cnf(t21033,plain,
    subset_complement(the_carrier(sk423),sk424) = topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)),
    inference(step,[status(thm)],[t21032,t200]) ).

cnf(t5267,plain,
    topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)) = subset_complement(the_carrier(sk423),sk424),
    inference(orient,[status(thm)],[t21033]) ).

cnf(t5268,plain,
    subset_complement(the_carrier(sk423),topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424))) = ifeq(top_str(sk423),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,interior(sk423,sk424),subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424))),subset_complement(the_carrier(sk423),topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)))),
    inference(cp,[status(thm)],[t959,t5267]) ).

cnf(t21034,plain,
    subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424)) = ifeq(top_str(sk423),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,interior(sk423,sk424),subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424))),subset_complement(the_carrier(sk423),topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)))),
    inference(step,[status(thm)],[t5268,t5267]) ).

fof(f268,axiom,
    ! [A,B] :
      ( element(B,powerset(A))
     => subset_complement(A,subset_complement(A,B)) = B ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k3_subset_1) ).

fof(f268_nnf,plain,
    ! [A,B] :
      ( subset_complement(A,subset_complement(A,B)) = B
      | ~ element(B,powerset(A)) ),
    inference(nnf_transformation,[status(thm)],[f268]) ).

fof(f268_sk,plain,
    ! [B,A] :
      ( subset_complement(A,subset_complement(A,B)) = B
      | ~ element(B,powerset(A)) ),
    inference(skolemisation,[status(esa)],[f268_nnf]) ).

cnf(c765,plain,
    ( subset_complement(X0,subset_complement(X0,X1)) = X1
    | ~ element(X1,powerset(X0)) ),
    inference(cnf_transformation,[status(esa)],[f268_sk]) ).

cnf(t127,plain,
    ifeq(element(X1,powerset(X2)),true,subset_complement(X2,subset_complement(X2,X1)),X1) = X1,
    inference(equality_encoding,[status(esa)],[c765]) ).

cnf(t203,plain,
    ifeq(element(X1,powerset(X2)),true,subset_complement(X2,subset_complement(X2,X1)),X1) = X1,
    inference(orient,[status(thm)],[t127]) ).

cnf(t466,plain,
    sk424 = ifeq(true,true,subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424)),sk424),
    inference(cp,[status(thm)],[t203,t456]) ).

cnf(t20940,plain,
    sk424 = subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424)),
    inference(step,[status(thm)],[t466,t200]) ).

cnf(t3492,plain,
    subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424)) = sk424,
    inference(orient,[status(thm)],[t20940]) ).

cnf(t21035,plain,
    sk424 = ifeq(top_str(sk423),true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,interior(sk423,sk424),subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424))),subset_complement(the_carrier(sk423),topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)))),
    inference(step,[status(thm)],[t21034,t3492]) ).

cnf(t21036,plain,
    sk424 = ifeq(true,true,ifeq(element(sk424,powerset(the_carrier(sk423))),true,interior(sk423,sk424),subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424))),subset_complement(the_carrier(sk423),topstr_closure(sk423,subset_complement(the_carrier(sk423),sk424)))),
    inference(step,[status(thm)],[t21035,t811]) ).

cnf(t21037,plain,
    sk424 = ifeq(element(sk424,powerset(the_carrier(sk423))),true,interior(sk423,sk424),subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424))),
    inference(step,[status(thm)],[t21036,t200]) ).

cnf(t21038,plain,
    sk424 = ifeq(true,true,interior(sk423,sk424),subset_complement(the_carrier(sk423),subset_complement(the_carrier(sk423),sk424))),
    inference(step,[status(thm)],[t21037,t456]) ).

cnf(t21039,plain,
    sk424 = interior(sk423,sk424),
    inference(step,[status(thm)],[t21038,t200]) ).

cnf(t5273,plain,
    interior(sk423,sk424) = sk424,
    inference(orient,[status(thm)],[t21039]) ).

cnf(t21623,plain,
    true = ifeq(in(sk425,sk424),true,or(empty_carrier(sk423),false),true),
    inference(step,[status(thm)],[t21622,t5273]) ).

cnf(c2787,plain,
    in(sk425,sk424),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t37,plain,
    in(sk425,sk424) = true,
    inference(equality_encoding,[status(esa)],[c2787]) ).

cnf(t377,plain,
    in(sk425,sk424) = true,
    inference(orient,[status(thm)],[t37]) ).

cnf(t21624,plain,
    true = ifeq(true,true,or(empty_carrier(sk423),false),true),
    inference(step,[status(thm)],[t21623,t377]) ).

cnf(t21625,plain,
    true = or(empty_carrier(sk423),false),
    inference(step,[status(thm)],[t21624,t200]) ).

cnf(t39,plain,
    or(X1,false) = X1,
    introduced(definition) ).

cnf(t213,plain,
    or(X1,false) = X1,
    inference(orient,[status(thm)],[t39]) ).

cnf(t21626,plain,
    true = empty_carrier(sk423),
    inference(step,[status(thm)],[t21625,t213]) ).

cnf(c2781,plain,
    ~ empty_carrier(sk423),
    inference(cnf_transformation,[status(esa)],[f530_sk]) ).

cnf(t10,plain,
    empty_carrier(sk423) = false,
    inference(equality_encoding,[status(esa)],[c2781]) ).

cnf(t1075,plain,
    empty_carrier(sk423) = false,
    inference(orient,[status(thm)],[t10]) ).

cnf(t21627,plain,
    true = false,
    inference(step,[status(thm)],[t21626,t1075]) ).

cnf(t20432,plain,
    false = true,
    inference(orient,[status(thm)],[t21627]) ).

fof(f0,axiom,
    ! [A,B] :
      ( in(A,B)
     => ~ in(B,A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

fof(f0_nnf,plain,
    ! [A,B] :
      ( ~ in(B,A)
      | ~ in(A,B) ),
    inference(nnf_transformation,[status(thm)],[f0]) ).

fof(f0_sk,plain,
    ! [A,B] :
      ( ~ in(B,A)
      | ~ in(A,B) ),
    inference(skolemisation,[status(esa)],[f0_nnf]) ).

cnf(c0,plain,
    ( ~ in(X1,X0)
    | ~ in(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f0_sk]) ).

fof(f1,axiom,
    ! [A,B] :
      ( proper_subset(A,B)
     => ~ proper_subset(B,A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_xboole_0) ).

fof(f1_nnf,plain,
    ! [A,B] :
      ( ~ proper_subset(B,A)
      | ~ proper_subset(A,B) ),
    inference(nnf_transformation,[status(thm)],[f1]) ).

fof(f1_sk,plain,
    ! [A,B] :
      ( ~ proper_subset(B,A)
      | ~ proper_subset(A,B) ),
    inference(skolemisation,[status(esa)],[f1_nnf]) ).

cnf(c1,plain,
    ( ~ proper_subset(X1,X0)
    | ~ proper_subset(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f1_sk]) ).

fof(f45,axiom,
    ! [A] :
      ( top_str(A)
     => ! [B] :
          ( element(B,powerset(the_carrier(A)))
         => ! [C] :
              ( element(C,powerset(the_carrier(A)))
             => ( C = topstr_closure(A,B)
              <=> ! [D] :
                    ( in(D,the_carrier(A))
                   => ( in(D,C)
                    <=> ! [E] :
                          ( element(E,powerset(the_carrier(A)))
                         => ~ ( disjoint(B,E)
                              & in(D,E)
                              & open_subset(E,A) ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d13_pre_topc) ).

fof(f45_nnf,plain,
    ! [A] :
      ( ! [B] :
          ( ! [C] :
              ( ( ( ? [D] :
                      ( ( ( ! [E] :
                              ( ~ disjoint(B,E)
                              | ~ in(D,E)
                              | ~ open_subset(E,A)
                              | ~ element(E,powerset(the_carrier(A))) )
                          & ~ in(D,C) )
                        | ( ? [E] :
                              ( disjoint(B,E)
                              & in(D,E)
                              & open_subset(E,A)
                              & element(E,powerset(the_carrier(A))) )
                          & in(D,C) ) )
                      & in(D,the_carrier(A)) )
                  | C = topstr_closure(A,B) )
                & ( ! [D] :
                      ( ( ( ? [E] :
                              ( disjoint(B,E)
                              & in(D,E)
                              & open_subset(E,A)
                              & element(E,powerset(the_carrier(A))) )
                          | in(D,C) )
                        & ( ! [E] :
                              ( ~ disjoint(B,E)
                              | ~ in(D,E)
                              | ~ open_subset(E,A)
                              | ~ element(E,powerset(the_carrier(A))) )
                          | ~ in(D,C) ) )
                      | ~ in(D,the_carrier(A)) )
                  | C != topstr_closure(A,B) ) )
              | ~ element(C,powerset(the_carrier(A))) )
          | ~ element(B,powerset(the_carrier(A))) )
      | ~ top_str(A) ),
    inference(nnf_transformation,[status(thm)],[f45]) ).

fof(f45_sk,plain,
    ! [A,B,C,D,E] :
      ( ( ( ( ( ( ( ~ disjoint(B,E)
                  | ~ in(sk11(A,B,C),E)
                  | ~ open_subset(E,A)
                  | ~ element(E,powerset(the_carrier(A))) )
                & ~ in(sk11(A,B,C),C) )
              | ( disjoint(B,sk12(A,B,C))
                & in(sk11(A,B,C),sk12(A,B,C))
                & open_subset(sk12(A,B,C),A)
                & element(sk12(A,B,C),powerset(the_carrier(A)))
                & in(sk11(A,B,C),C) ) )
            & in(sk11(A,B,C),the_carrier(A)) )
          | C = topstr_closure(A,B) )
        & ( ( ( ( disjoint(B,sk10(A,B,C,D))
                & in(D,sk10(A,B,C,D))
                & open_subset(sk10(A,B,C,D),A)
                & element(sk10(A,B,C,D),powerset(the_carrier(A))) )
              | in(D,C) )
            & ( ~ disjoint(B,E)
              | ~ in(D,E)
              | ~ open_subset(E,A)
              | ~ element(E,powerset(the_carrier(A)))
              | ~ in(D,C) ) )
          | ~ in(D,the_carrier(A))
          | C != topstr_closure(A,B) ) )
      | ~ element(C,powerset(the_carrier(A)))
      | ~ element(B,powerset(the_carrier(A)))
      | ~ top_str(A) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk10,sk11,sk12])],[f45_nnf]) ).

cnf(c129,plain,
    ( ~ disjoint(X1,X4)
    | ~ in(X3,X4)
    | ~ open_subset(X4,X0)
    | ~ element(X4,powerset(the_carrier(X0)))
    | ~ in(X3,X2)
    | ~ in(X3,the_carrier(X0))
    | X2 != topstr_closure(X0,X1)
    | ~ element(X2,powerset(the_carrier(X0)))
    | ~ element(X1,powerset(the_carrier(X0)))
    | ~ top_str(X0) ),
    inference(cnf_transformation,[status(esa)],[f45_sk]) ).

fof(f67,axiom,
    ! [A] :
      ( relation(A)
     => ! [B,C] :
          ( C = fiber(A,B)
        <=> ! [D] :
              ( in(D,C)
            <=> ( in(ordered_pair(D,B),A)
                & D != B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_wellord1) ).

fof(f67_nnf,plain,
    ! [A] :
      ( ! [B,C] :
          ( ( ? [D] :
                ( ( in(ordered_pair(D,B),A)
                  & D != B
                  & ~ in(D,C) )
                | ( ( ~ in(ordered_pair(D,B),A)
                    | D = B )
                  & in(D,C) ) )
            | C = fiber(A,B) )
          & ( ! [D] :
                ( ( ~ in(ordered_pair(D,B),A)
                  | D = B
                  | in(D,C) )
                & ( ( in(ordered_pair(D,B),A)
                    & D != B )
                  | ~ in(D,C) ) )
            | C != fiber(A,B) ) )
      | ~ relation(A) ),
    inference(nnf_transformation,[status(thm)],[f67]) ).

fof(f67_sk,plain,
    ! [A,C,B,D] :
      ( ( ( ( in(ordered_pair(sk38(A,B,C),B),A)
            & sk38(A,B,C) != B
            & ~ in(sk38(A,B,C),C) )
          | ( ( ~ in(ordered_pair(sk38(A,B,C),B),A)
              | sk38(A,B,C) = B )
            & in(sk38(A,B,C),C) )
          | C = fiber(A,B) )
        & ( ( ( ~ in(ordered_pair(D,B),A)
              | D = B
              | in(D,C) )
            & ( ( in(ordered_pair(D,B),A)
                & D != B )
              | ~ in(D,C) ) )
          | C != fiber(A,B) ) )
      | ~ relation(A) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk38])],[f67_nnf]) ).

cnf(c251,plain,
    ( X3 != X1
    | ~ in(X3,X2)
    | X2 != fiber(X0,X1)
    | ~ relation(X0) ),
    inference(cnf_transformation,[status(esa)],[f67_sk]) ).

fof(f69,axiom,
    ! [A] :
      ( A = empty_set
    <=> ! [B] : ~ in(B,A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

fof(f69_nnf,plain,
    ! [A] :
      ( ( ? [B] : in(B,A)
        | A = empty_set )
      & ( ! [B] : ~ in(B,A)
        | A != empty_set ) ),
    inference(nnf_transformation,[status(thm)],[f69]) ).

fof(f69_sk,plain,
    ! [A,B] :
      ( ( in(sk41(A),A)
        | A = empty_set )
      & ( ~ in(B,A)
        | A != empty_set ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk41])],[f69_nnf]) ).

cnf(c269,plain,
    ( ~ in(X1,X0)
    | X0 != empty_set ),
    inference(cnf_transformation,[status(esa)],[f69_sk]) ).

fof(f71,axiom,
    ! [A] :
      ( centered(A)
    <=> ( ! [B] :
            ~ ( set_meet(B) = empty_set
              & finite(B)
              & subset(B,A)
              & B != empty_set )
        & A != empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_compts_1) ).

fof(f71_nnf,plain,
    ! [A] :
      ( ( ? [B] :
            ( set_meet(B) = empty_set
            & finite(B)
            & subset(B,A)
            & B != empty_set )
        | A = empty_set
        | centered(A) )
      & ( ( ! [B] :
              ( set_meet(B) != empty_set
              | ~ finite(B)
              | ~ subset(B,A)
              | B = empty_set )
          & A != empty_set )
        | ~ centered(A) ) ),
    inference(nnf_transformation,[status(thm)],[f71]) ).

fof(f71_sk,plain,
    ! [A,B] :
      ( ( ( set_meet(sk43(A)) = empty_set
          & finite(sk43(A))
          & subset(sk43(A),A)
          & sk43(A) != empty_set )
        | A = empty_set
        | centered(A) )
      & ( ( ( set_meet(B) != empty_set
            | ~ finite(B)
            | ~ subset(B,A)
            | B = empty_set )
          & A != empty_set )
        | ~ centered(A) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk43])],[f71_nnf]) ).

cnf(c277,plain,
    ( X0 != empty_set
    | ~ centered(X0) ),
    inference(cnf_transformation,[status(esa)],[f71_sk]) ).

fof(f99,axiom,
    ! [A,B,C] :
      ( C = set_difference(A,B)
    <=> ! [D] :
          ( in(D,C)
        <=> ( ~ in(D,B)
            & in(D,A) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

fof(f99_nnf,plain,
    ! [A,B,C] :
      ( ( ? [D] :
            ( ( ~ in(D,B)
              & in(D,A)
              & ~ in(D,C) )
            | ( ( in(D,B)
                | ~ in(D,A) )
              & in(D,C) ) )
        | C = set_difference(A,B) )
      & ( ! [D] :
            ( ( in(D,B)
              | ~ in(D,A)
              | in(D,C) )
            & ( ( ~ in(D,B)
                & in(D,A) )
              | ~ in(D,C) ) )
        | C != set_difference(A,B) ) ),
    inference(nnf_transformation,[status(thm)],[f99]) ).

fof(f99_sk,plain,
    ! [C,A,B,D] :
      ( ( ( ~ in(sk78(A,B,C),B)
          & in(sk78(A,B,C),A)
          & ~ in(sk78(A,B,C),C) )
        | ( ( in(sk78(A,B,C),B)
            | ~ in(sk78(A,B,C),A) )
          & in(sk78(A,B,C),C) )
        | C = set_difference(A,B) )
      & ( ( ( in(D,B)
            | ~ in(D,A)
            | in(D,C) )
          & ( ( ~ in(D,B)
              & in(D,A) )
            | ~ in(D,C) ) )
        | C != set_difference(A,B) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk78])],[f99_nnf]) ).

cnf(c419,plain,
    ( ~ in(X3,X1)
    | ~ in(X3,X2)
    | X2 != set_difference(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f99_sk]) ).

fof(f123,axiom,
    ! [A,B] :
      ( proper_subset(A,B)
    <=> ( A != B
        & subset(A,B) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_xboole_0) ).

fof(f123_nnf,plain,
    ! [A,B] :
      ( ( A = B
        | ~ subset(A,B)
        | proper_subset(A,B) )
      & ( ( A != B
          & subset(A,B) )
        | ~ proper_subset(A,B) ) ),
    inference(nnf_transformation,[status(thm)],[f123]) ).

fof(f123_sk,plain,
    ! [A,B] :
      ( ( A = B
        | ~ subset(A,B)
        | proper_subset(A,B) )
      & ( ( A != B
          & subset(A,B) )
        | ~ proper_subset(A,B) ) ),
    inference(skolemisation,[status(esa)],[f123_nnf]) ).

cnf(c534,plain,
    ( X0 != X1
    | ~ proper_subset(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f123_sk]) ).

fof(f210,axiom,
    ! [A] :
      ( finite(singleton(A))
      & ~ empty(singleton(A)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_finset_1) ).

fof(f210_nnf,plain,
    ! [A] :
      ( finite(singleton(A))
      & ~ empty(singleton(A)) ),
    inference(nnf_transformation,[status(thm)],[f210]) ).

fof(f210_sk,plain,
    ! [A] :
      ( finite(singleton(A))
      & ~ empty(singleton(A)) ),
    inference(skolemisation,[status(esa)],[f210_nnf]) ).

cnf(c635,plain,
    ~ empty(singleton(X0)),
    inference(cnf_transformation,[status(esa)],[f210_sk]) ).

fof(f211,axiom,
    ! [A] :
      ( preboolean(powerset(A))
      & diff_closed(powerset(A))
      & cup_closed(powerset(A))
      & ~ empty(powerset(A)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_finsub_1) ).

fof(f211_nnf,plain,
    ! [A] :
      ( preboolean(powerset(A))
      & diff_closed(powerset(A))
      & cup_closed(powerset(A))
      & ~ empty(powerset(A)) ),
    inference(nnf_transformation,[status(thm)],[f211]) ).

fof(f211_sk,plain,
    ! [A] :
      ( preboolean(powerset(A))
      & diff_closed(powerset(A))
      & cup_closed(powerset(A))
      & ~ empty(powerset(A)) ),
    inference(skolemisation,[status(esa)],[f211_nnf]) ).

cnf(c637,plain,
    ~ empty(powerset(X0)),
    inference(cnf_transformation,[status(esa)],[f211_sk]) ).

fof(f213,axiom,
    ! [A] : ~ empty(succ(A)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_ordinal1) ).

fof(f213_nnf,plain,
    ! [A] : ~ empty(succ(A)),
    inference(nnf_transformation,[status(thm)],[f213]) ).

fof(f213_sk,plain,
    ! [A] : ~ empty(succ(A)),
    inference(skolemisation,[status(esa)],[f213_nnf]) ).

cnf(c643,plain,
    ~ empty(succ(X0)),
    inference(cnf_transformation,[status(esa)],[f213_sk]) ).

fof(f214,axiom,
    ( ~ empty(omega)
    & ordinal(omega)
    & epsilon_connected(omega)
    & epsilon_transitive(omega) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_ordinal2) ).

fof(f214_nnf,plain,
    ( ~ empty(omega)
    & ordinal(omega)
    & epsilon_connected(omega)
    & epsilon_transitive(omega) ),
    inference(nnf_transformation,[status(thm)],[f214]) ).

fof(f214_sk,plain,
    ( ~ empty(omega)
    & ordinal(omega)
    & epsilon_connected(omega)
    & epsilon_transitive(omega) ),
    inference(skolemisation,[status(esa)],[f214_nnf]) ).

cnf(c647,plain,
    ~ empty(omega),
    inference(cnf_transformation,[status(esa)],[f214_sk]) ).

fof(f218,axiom,
    ! [A] : ~ empty(powerset(A)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_subset_1) ).

fof(f218_nnf,plain,
    ! [A] : ~ empty(powerset(A)),
    inference(nnf_transformation,[status(thm)],[f218]) ).

fof(f218_sk,plain,
    ! [A] : ~ empty(powerset(A)),
    inference(skolemisation,[status(esa)],[f218_nnf]) ).

cnf(c656,plain,
    ~ empty(powerset(X0)),
    inference(cnf_transformation,[status(esa)],[f218_sk]) ).

fof(f220,axiom,
    ! [A,B] : ~ empty(ordered_pair(A,B)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

fof(f220_nnf,plain,
    ! [A,B] : ~ empty(ordered_pair(A,B)),
    inference(nnf_transformation,[status(thm)],[f220]) ).

fof(f220_sk,plain,
    ! [A,B] : ~ empty(ordered_pair(A,B)),
    inference(skolemisation,[status(esa)],[f220_nnf]) ).

cnf(c658,plain,
    ~ empty(ordered_pair(X0,X1)),
    inference(cnf_transformation,[status(esa)],[f220_sk]) ).

fof(f224,axiom,
    ! [A] :
      ( ( natural(A)
        & ordinal(A) )
     => ( natural(succ(A))
        & ordinal(succ(A))
        & epsilon_connected(succ(A))
        & epsilon_transitive(succ(A))
        & ~ empty(succ(A)) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_arytm_3) ).

fof(f224_nnf,plain,
    ! [A] :
      ( ( natural(succ(A))
        & ordinal(succ(A))
        & epsilon_connected(succ(A))
        & epsilon_transitive(succ(A))
        & ~ empty(succ(A)) )
      | ~ natural(A)
      | ~ ordinal(A) ),
    inference(nnf_transformation,[status(thm)],[f224]) ).

fof(f224_sk,plain,
    ! [A] :
      ( ( natural(succ(A))
        & ordinal(succ(A))
        & epsilon_connected(succ(A))
        & epsilon_transitive(succ(A))
        & ~ empty(succ(A)) )
      | ~ natural(A)
      | ~ ordinal(A) ),
    inference(skolemisation,[status(esa)],[f224_nnf]) ).

cnf(c663,plain,
    ( ~ empty(succ(X0))
    | ~ natural(X0)
    | ~ ordinal(X0) ),
    inference(cnf_transformation,[status(esa)],[f224_sk]) ).

fof(f229,axiom,
    ! [A] : ~ empty(singleton(A)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_subset_1) ).

fof(f229_nnf,plain,
    ! [A] : ~ empty(singleton(A)),
    inference(nnf_transformation,[status(thm)],[f229]) ).

fof(f229_sk,plain,
    ! [A] : ~ empty(singleton(A)),
    inference(skolemisation,[status(esa)],[f229_nnf]) ).

cnf(c680,plain,
    ~ empty(singleton(X0)),
    inference(cnf_transformation,[status(esa)],[f229_sk]) ).

fof(f243,axiom,
    ! [A] :
      ( ordinal(A)
     => ( ordinal(succ(A))
        & epsilon_connected(succ(A))
        & epsilon_transitive(succ(A))
        & ~ empty(succ(A)) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_ordinal1) ).

fof(f243_nnf,plain,
    ! [A] :
      ( ( ordinal(succ(A))
        & epsilon_connected(succ(A))
        & epsilon_transitive(succ(A))
        & ~ empty(succ(A)) )
      | ~ ordinal(A) ),
    inference(nnf_transformation,[status(thm)],[f243]) ).

fof(f243_sk,plain,
    ! [A] :
      ( ( ordinal(succ(A))
        & epsilon_connected(succ(A))
        & epsilon_transitive(succ(A))
        & ~ empty(succ(A)) )
      | ~ ordinal(A) ),
    inference(skolemisation,[status(esa)],[f243_nnf]) ).

cnf(c717,plain,
    ( ~ empty(succ(X0))
    | ~ ordinal(X0) ),
    inference(cnf_transformation,[status(esa)],[f243_sk]) ).

fof(f245,axiom,
    ! [A,B] : ~ empty(unordered_pair(A,B)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_subset_1) ).

fof(f245_nnf,plain,
    ! [A,B] : ~ empty(unordered_pair(A,B)),
    inference(nnf_transformation,[status(thm)],[f245]) ).

fof(f245_sk,plain,
    ! [A,B] : ~ empty(unordered_pair(A,B)),
    inference(skolemisation,[status(esa)],[f245_nnf]) ).

cnf(c722,plain,
    ~ empty(unordered_pair(X0,X1)),
    inference(cnf_transformation,[status(esa)],[f245_sk]) ).

fof(f271,axiom,
    ! [A,B] : ~ proper_subset(A,A),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',irreflexivity_r2_xboole_0) ).

fof(f271_nnf,plain,
    ! [A,B] : ~ proper_subset(A,A),
    inference(nnf_transformation,[status(thm)],[f271]) ).

fof(f271_sk,plain,
    ! [A] : ~ proper_subset(A,A),
    inference(skolemisation,[status(esa)],[f271_nnf]) ).

cnf(c768,plain,
    ~ proper_subset(X0,X0),
    inference(cnf_transformation,[status(esa)],[f271_sk]) ).

fof(f273,lemma,
    ! [A] : singleton(A) != empty_set,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

fof(f273_nnf,plain,
    ! [A] : singleton(A) != empty_set,
    inference(nnf_transformation,[status(thm)],[f273]) ).

fof(f273_sk,plain,
    ! [A] : singleton(A) != empty_set,
    inference(skolemisation,[status(esa)],[f273_nnf]) ).

cnf(c772,plain,
    singleton(X0) != empty_set,
    inference(cnf_transformation,[status(esa)],[f273_sk]) ).

fof(f275,lemma,
    ! [A,B] :
      ~ ( in(A,B)
        & disjoint(singleton(A),B) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

fof(f275_nnf,plain,
    ! [A,B] :
      ( ~ in(A,B)
      | ~ disjoint(singleton(A),B) ),
    inference(nnf_transformation,[status(thm)],[f275]) ).

fof(f275_sk,plain,
    ! [A,B] :
      ( ~ in(A,B)
      | ~ disjoint(singleton(A),B) ),
    inference(skolemisation,[status(esa)],[f275_nnf]) ).

cnf(c774,plain,
    ( ~ in(X0,X1)
    | ~ disjoint(singleton(X0),X1) ),
    inference(cnf_transformation,[status(esa)],[f275_sk]) ).

fof(f292,axiom,
    ? [A] :
      ( natural(A)
      & ordinal(A)
      & epsilon_connected(A)
      & epsilon_transitive(A)
      & ~ empty(A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_arytm_3) ).

fof(f292_nnf,plain,
    ? [A] :
      ( natural(A)
      & ordinal(A)
      & epsilon_connected(A)
      & epsilon_transitive(A)
      & ~ empty(A) ),
    inference(nnf_transformation,[status(thm)],[f292]) ).

fof(f292_sk,plain,
    ( natural(sk124)
    & ordinal(sk124)
    & epsilon_connected(sk124)
    & epsilon_transitive(sk124)
    & ~ empty(sk124) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk124])],[f292_nnf]) ).

cnf(c813,plain,
    ~ empty(sk124),
    inference(cnf_transformation,[status(esa)],[f292_sk]) ).

fof(f293,axiom,
    ? [A] :
      ( finite(A)
      & ~ empty(A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_finset_1) ).

fof(f293_nnf,plain,
    ? [A] :
      ( finite(A)
      & ~ empty(A) ),
    inference(nnf_transformation,[status(thm)],[f293]) ).

fof(f293_sk,plain,
    ( finite(sk125)
    & ~ empty(sk125) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk125])],[f293_nnf]) ).

cnf(c818,plain,
    ~ empty(sk125),
    inference(cnf_transformation,[status(esa)],[f293_sk]) ).

fof(f296,axiom,
    ? [A] :
      ( v5_membered(A)
      & v4_membered(A)
      & v3_membered(A)
      & v2_membered(A)
      & v1_membered(A)
      & ~ empty(A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_membered) ).

fof(f296_nnf,plain,
    ? [A] :
      ( v5_membered(A)
      & v4_membered(A)
      & v3_membered(A)
      & v2_membered(A)
      & v1_membered(A)
      & ~ empty(A) ),
    inference(nnf_transformation,[status(thm)],[f296]) ).

fof(f296_sk,plain,
    ( v5_membered(sk128)
    & v4_membered(sk128)
    & v3_membered(sk128)
    & v2_membered(sk128)
    & v1_membered(sk128)
    & ~ empty(sk128) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk128])],[f296_nnf]) ).

cnf(c826,plain,
    ~ empty(sk128),
    inference(cnf_transformation,[status(esa)],[f296_sk]) ).

fof(f308,axiom,
    ? [A] :
      ( relation(A)
      & ~ empty(A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_relat_1) ).

fof(f308_nnf,plain,
    ? [A] :
      ( relation(A)
      & ~ empty(A) ),
    inference(nnf_transformation,[status(thm)],[f308]) ).

fof(f308_sk,plain,
    ( relation(sk140)
    & ~ empty(sk140) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk140])],[f308_nnf]) ).

cnf(c873,plain,
    ~ empty(sk140),
    inference(cnf_transformation,[status(esa)],[f308_sk]) ).

fof(f311,axiom,
    ? [A] : ~ empty(A),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_xboole_0) ).

fof(f311_nnf,plain,
    ? [A] : ~ empty(A),
    inference(nnf_transformation,[status(thm)],[f311]) ).

fof(f311_sk,plain,
    ~ empty(sk143),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk143])],[f311_nnf]) ).

cnf(c880,plain,
    ~ empty(sk143),
    inference(cnf_transformation,[status(esa)],[f311_sk]) ).

fof(f314,axiom,
    ? [A] :
      ( ordinal(A)
      & epsilon_connected(A)
      & epsilon_transitive(A)
      & ~ empty(A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc3_ordinal1) ).

fof(f314_nnf,plain,
    ? [A] :
      ( ordinal(A)
      & epsilon_connected(A)
      & epsilon_transitive(A)
      & ~ empty(A) ),
    inference(nnf_transformation,[status(thm)],[f314]) ).

fof(f314_sk,plain,
    ( ordinal(sk146)
    & epsilon_connected(sk146)
    & epsilon_transitive(sk146)
    & ~ empty(sk146) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk146])],[f314_nnf]) ).

cnf(c887,plain,
    ~ empty(sk146),
    inference(cnf_transformation,[status(esa)],[f314_sk]) ).

fof(f316,axiom,
    ? [A] :
      ( ~ empty_carrier(A)
      & one_sorted_str(A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc3_struct_0) ).

fof(f316_nnf,plain,
    ? [A] :
      ( ~ empty_carrier(A)
      & one_sorted_str(A) ),
    inference(nnf_transformation,[status(thm)],[f316]) ).

fof(f316_sk,plain,
    ( ~ empty_carrier(sk148)
    & one_sorted_str(sk148) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk148])],[f316_nnf]) ).

cnf(c894,plain,
    ~ empty_carrier(sk148),
    inference(cnf_transformation,[status(esa)],[f316_sk]) ).

fof(f342,lemma,
    ( ( ! [D] :
          ( ordinal(D)
         => ( ( ! [K] :
                  ( ordinal(K)
                 => ( in(K,D)
                   => ( in(K,omega)
                     => ! [L] :
                          ( element(L,powerset(powerset(K)))
                         => ~ ( ! [M] :
                                  ~ ( ! [N] :
                                        ( ( subset(M,N)
                                          & in(N,L) )
                                       => N = M )
                                    & in(M,L) )
                              & L != empty_set ) ) ) ) )
              & being_limit_ordinal(D) )
           => ( ( in(D,omega)
               => ! [O] :
                    ( element(O,powerset(powerset(D)))
                   => ~ ( ! [P] :
                            ~ ( ! [Q] :
                                  ( ( subset(P,Q)
                                    & in(Q,O) )
                                 => Q = P )
                              & in(P,O) )
                        & O != empty_set ) ) )
              | D = empty_set ) ) )
      & ! [D] :
          ( ordinal(D)
         => ( ( in(D,omega)
             => ! [E] :
                  ( element(E,powerset(powerset(D)))
                 => ~ ( ! [F] :
                          ~ ( ! [G] :
                                ( ( subset(F,G)
                                  & in(G,E) )
                               => G = F )
                            & in(F,E) )
                      & E != empty_set ) ) )
           => ( in(succ(D),omega)
             => ! [H] :
                  ( element(H,powerset(powerset(succ(D))))
                 => ~ ( ! [I] :
                          ~ ( ! [J] :
                                ( ( subset(I,J)
                                  & in(J,H) )
                               => J = I )
                            & in(I,H) )
                      & H != empty_set ) ) ) ) )
      & ( in(empty_set,omega)
       => ! [A] :
            ( element(A,powerset(powerset(empty_set)))
           => ~ ( ! [B] :
                    ~ ( ! [C] :
                          ( ( subset(B,C)
                            & in(C,A) )
                         => C = B )
                      & in(B,A) )
                & A != empty_set ) ) ) )
   => ! [D] :
        ( ordinal(D)
       => ( in(D,omega)
         => ! [R] :
              ( element(R,powerset(powerset(D)))
             => ~ ( ! [S] :
                      ~ ( ! [T] :
                            ( ( subset(S,T)
                              & in(T,R) )
                           => T = S )
                        & in(S,R) )
                  & R != empty_set ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',s1_ordinal2__e18_27__finset_1) ).

fof(f342_nnf,plain,
    ( ! [D] :
        ( ! [R] :
            ( ? [S] :
                ( ! [T] :
                    ( T = S
                    | ~ subset(S,T)
                    | ~ in(T,R) )
                & in(S,R) )
            | R = empty_set
            | ~ element(R,powerset(powerset(D))) )
        | ~ in(D,omega)
        | ~ ordinal(D) )
    | ? [D] :
        ( ? [O] :
            ( ! [P] :
                ( ? [Q] :
                    ( Q != P
                    & subset(P,Q)
                    & in(Q,O) )
                | ~ in(P,O) )
            & O != empty_set
            & element(O,powerset(powerset(D))) )
        & in(D,omega)
        & D != empty_set
        & ! [K] :
            ( ! [L] :
                ( ? [M] :
                    ( ! [N] :
                        ( N = M
                        | ~ subset(M,N)
                        | ~ in(N,L) )
                    & in(M,L) )
                | L = empty_set
                | ~ element(L,powerset(powerset(K))) )
            | ~ in(K,omega)
            | ~ in(K,D)
            | ~ ordinal(K) )
        & being_limit_ordinal(D)
        & ordinal(D) )
    | ? [D] :
        ( ? [H] :
            ( ! [I] :
                ( ? [J] :
                    ( J != I
                    & subset(I,J)
                    & in(J,H) )
                | ~ in(I,H) )
            & H != empty_set
            & element(H,powerset(powerset(succ(D)))) )
        & in(succ(D),omega)
        & ( ! [E] :
              ( ? [F] :
                  ( ! [G] :
                      ( G = F
                      | ~ subset(F,G)
                      | ~ in(G,E) )
                  & in(F,E) )
              | E = empty_set
              | ~ element(E,powerset(powerset(D))) )
          | ~ in(D,omega) )
        & ordinal(D) )
    | ( ? [A] :
          ( ! [B] :
              ( ? [C] :
                  ( C != B
                  & subset(B,C)
                  & in(C,A) )
              | ~ in(B,A) )
          & A != empty_set
          & element(A,powerset(powerset(empty_set))) )
      & in(empty_set,omega) ) ),
    inference(nnf_transformation,[status(thm)],[f342]) ).

fof(f342_sk,plain,
    ! [B,E,G,I,K,L,N,P,D,R,T] :
      ( ( ( T = sk187(D,R)
          | ~ subset(sk187(D,R),T)
          | ~ in(T,R) )
        & in(sk187(D,R),R) )
      | R = empty_set
      | ~ element(R,powerset(powerset(D)))
      | ~ in(D,omega)
      | ~ ordinal(D)
      | ( ( ( sk186(P) != P
            & subset(P,sk186(P))
            & in(sk186(P),sk185) )
          | ~ in(P,sk185) )
        & sk185 != empty_set
        & element(sk185,powerset(powerset(sk183)))
        & in(sk183,omega)
        & sk183 != empty_set
        & ( ( ( N = sk184(K,L)
              | ~ subset(sk184(K,L),N)
              | ~ in(N,L) )
            & in(sk184(K,L),L) )
          | L = empty_set
          | ~ element(L,powerset(powerset(K)))
          | ~ in(K,omega)
          | ~ in(K,sk183)
          | ~ ordinal(K) )
        & being_limit_ordinal(sk183)
        & ordinal(sk183) )
      | ( ( ( sk182(I) != I
            & subset(I,sk182(I))
            & in(sk182(I),sk181) )
          | ~ in(I,sk181) )
        & sk181 != empty_set
        & element(sk181,powerset(powerset(succ(sk179))))
        & in(succ(sk179),omega)
        & ( ( ( G = sk180(E)
              | ~ subset(sk180(E),G)
              | ~ in(G,E) )
            & in(sk180(E),E) )
          | E = empty_set
          | ~ element(E,powerset(powerset(sk179)))
          | ~ in(sk179,omega) )
        & ordinal(sk179) )
      | ( ( ( sk178(B) != B
            & subset(B,sk178(B))
            & in(sk178(B),sk177) )
          | ~ in(B,sk177) )
        & sk177 != empty_set
        & element(sk177,powerset(powerset(empty_set)))
        & in(empty_set,omega) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk177,sk178,sk179,sk180,sk181,sk182,sk183,sk184,sk185,sk186,sk187])],[f342_nnf]) ).

cnf(c1124,plain,
    ( sk178(X1) != X1
    | ~ def1(X1) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1129,plain,
    ( sk177 != empty_set
    | ~ def3(X1) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1138,plain,
    ( ~ subset(sk180(X4),X6)
    | ~ in(X6,X4)
    | ~ def6(X6,X4) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1160,plain,
    ( sk182(X8) != X8
    | ~ def13(X8) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1165,plain,
    ( sk181 != empty_set
    | ~ def15(X8) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1183,plain,
    ( ~ subset(sk184(X10,X11),X13)
    | ~ in(X13,X11)
    | ~ def21(X13,X11,X10) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1214,plain,
    ( sk186(X15) != X15
    | ~ def31(X15) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1219,plain,
    ( sk185 != empty_set
    | ~ def33(X15) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1228,plain,
    ( sk183 != empty_set
    | ~ def36(X15) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

cnf(c1240,plain,
    ( ~ subset(sk187(X3,X17),X19)
    | ~ in(X19,X17)
    | ~ def40(X19,X17,X3) ),
    inference(cnf_transformation,[status(esa),new_symbols(definition,[def0,def1,def2,def3,def4,def5,def6,def7,def8,def9,def10,def11,def12,def13,def14,def15,def16,def17,def18,def19,def20,def21,def22,def23,def24,def25,def26,def27,def28,def29,def30,def31,def32,def33,def34,def35,def36,def37,def38,def39,def40,def41,def42,def43,def44,def45,def46,def47])],[f342_sk]) ).

fof(f489,lemma,
    ! [A,B,C] :
      ~ ( in(C,A)
        & in(B,C)
        & in(A,B) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_ordinal1) ).

fof(f489_nnf,plain,
    ! [A,B,C] :
      ( ~ in(C,A)
      | ~ in(B,C)
      | ~ in(A,B) ),
    inference(nnf_transformation,[status(thm)],[f489]) ).

fof(f489_sk,plain,
    ! [A,B,C] :
      ( ~ in(C,A)
      | ~ in(B,C)
      | ~ in(A,B) ),
    inference(skolemisation,[status(esa)],[f489_nnf]) ).

cnf(c2697,plain,
    ( ~ in(X2,X0)
    | ~ in(X1,X2)
    | ~ in(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f489_sk]) ).

fof(f492,lemma,
    ! [A,B] :
      ( ~ ( disjoint(A,B)
          & ? [C] :
              ( in(C,B)
              & in(C,A) ) )
      & ~ ( ! [C] :
              ~ ( in(C,B)
                & in(C,A) )
          & ~ disjoint(A,B) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_0) ).

fof(f492_nnf,plain,
    ! [A,B] :
      ( ( ~ disjoint(A,B)
        | ! [C] :
            ( ~ in(C,B)
            | ~ in(C,A) ) )
      & ( ? [C] :
            ( in(C,B)
            & in(C,A) )
        | disjoint(A,B) ) ),
    inference(nnf_transformation,[status(thm)],[f492]) ).

fof(f492_sk,plain,
    ! [A,B,C] :
      ( ( ~ disjoint(A,B)
        | ~ in(C,B)
        | ~ in(C,A) )
      & ( ( in(sk412(A,B),B)
          & in(sk412(A,B),A) )
        | disjoint(A,B) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk412])],[f492_nnf]) ).

cnf(c2703,plain,
    ( ~ disjoint(X0,X1)
    | ~ in(X2,X1)
    | ~ in(X2,X0) ),
    inference(cnf_transformation,[status(esa)],[f492_sk]) ).

fof(f496,lemma,
    ! [A] :
      ( ordinal(A)
     => ( ~ ( being_limit_ordinal(A)
            & ? [B] :
                ( A = succ(B)
                & ordinal(B) ) )
        & ~ ( ! [B] :
                ( ordinal(B)
               => A != succ(B) )
            & ~ being_limit_ordinal(A) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t42_ordinal1) ).

fof(f496_nnf,plain,
    ! [A] :
      ( ( ( ~ being_limit_ordinal(A)
          | ! [B] :
              ( A != succ(B)
              | ~ ordinal(B) ) )
        & ( ? [B] :
              ( A = succ(B)
              & ordinal(B) )
          | being_limit_ordinal(A) ) )
      | ~ ordinal(A) ),
    inference(nnf_transformation,[status(thm)],[f496]) ).

fof(f496_sk,plain,
    ! [A,B] :
      ( ( ( ~ being_limit_ordinal(A)
          | A != succ(B)
          | ~ ordinal(B) )
        & ( ( A = succ(sk414(A))
            & ordinal(sk414(A)) )
          | being_limit_ordinal(A) ) )
      | ~ ordinal(A) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk414])],[f496_nnf]) ).

cnf(c2712,plain,
    ( ~ being_limit_ordinal(X0)
    | X0 != succ(X1)
    | ~ ordinal(X1)
    | ~ ordinal(X0) ),
    inference(cnf_transformation,[status(esa)],[f496_sk]) ).

fof(f518,lemma,
    ! [A,B] :
      ( ~ ( disjoint(A,B)
          & ? [C] : in(C,set_intersection2(A,B)) )
      & ~ ( ! [C] : ~ in(C,set_intersection2(A,B))
          & ~ disjoint(A,B) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_xboole_0) ).

fof(f518_nnf,plain,
    ! [A,B] :
      ( ( ~ disjoint(A,B)
        | ! [C] : ~ in(C,set_intersection2(A,B)) )
      & ( ? [C] : in(C,set_intersection2(A,B))
        | disjoint(A,B) ) ),
    inference(nnf_transformation,[status(thm)],[f518]) ).

fof(f518_sk,plain,
    ! [A,B,C] :
      ( ( ~ disjoint(A,B)
        | ~ in(C,set_intersection2(A,B)) )
      & ( in(sk418(A,B),set_intersection2(A,B))
        | disjoint(A,B) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk418])],[f518_nnf]) ).

cnf(c2748,plain,
    ( ~ disjoint(X0,X1)
    | ~ in(X2,set_intersection2(X0,X1)) ),
    inference(cnf_transformation,[status(esa)],[f518_sk]) ).

fof(f524,lemma,
    ! [A,B,C] :
      ( element(C,powerset(A))
     => ~ ( in(B,C)
          & in(B,subset_complement(A,C)) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t54_subset_1) ).

fof(f524_nnf,plain,
    ! [A,B,C] :
      ( ~ in(B,C)
      | ~ in(B,subset_complement(A,C))
      | ~ element(C,powerset(A)) ),
    inference(nnf_transformation,[status(thm)],[f524]) ).

fof(f524_sk,plain,
    ! [C,A,B] :
      ( ~ in(B,C)
      | ~ in(B,subset_complement(A,C))
      | ~ element(C,powerset(A)) ),
    inference(skolemisation,[status(esa)],[f524_nnf]) ).

cnf(c2772,plain,
    ( ~ in(X1,X2)
    | ~ in(X1,subset_complement(X0,X2))
    | ~ element(X2,powerset(X0)) ),
    inference(cnf_transformation,[status(esa)],[f524_sk]) ).

fof(f531,axiom,
    ! [A,B,C] :
      ~ ( empty(C)
        & element(B,powerset(C))
        & in(A,B) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t5_subset) ).

fof(f531_nnf,plain,
    ! [A,B,C] :
      ( ~ empty(C)
      | ~ element(B,powerset(C))
      | ~ in(A,B) ),
    inference(nnf_transformation,[status(thm)],[f531]) ).

fof(f531_sk,plain,
    ! [A,B,C] :
      ( ~ empty(C)
      | ~ element(B,powerset(C))
      | ~ in(A,B) ),
    inference(skolemisation,[status(esa)],[f531_nnf]) ).

cnf(c2789,plain,
    ( ~ empty(X2)
    | ~ element(X1,powerset(X2))
    | ~ in(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f531_sk]) ).

fof(f536,lemma,
    ! [A,B] :
      ~ ( proper_subset(B,A)
        & subset(A,B) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

fof(f536_nnf,plain,
    ! [A,B] :
      ( ~ proper_subset(B,A)
      | ~ subset(A,B) ),
    inference(nnf_transformation,[status(thm)],[f536]) ).

fof(f536_sk,plain,
    ! [A,B] :
      ( ~ proper_subset(B,A)
      | ~ subset(A,B) ),
    inference(skolemisation,[status(esa)],[f536_nnf]) ).

cnf(c2796,plain,
    ( ~ proper_subset(X1,X0)
    | ~ subset(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f536_sk]) ).

fof(f541,lemma,
    ! [A,B] :
      ( set_difference(A,singleton(B)) = A
    <=> ~ in(B,A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t65_zfmisc_1) ).

fof(f541_nnf,plain,
    ! [A,B] :
      ( ( in(B,A)
        | set_difference(A,singleton(B)) = A )
      & ( ~ in(B,A)
        | set_difference(A,singleton(B)) != A ) ),
    inference(nnf_transformation,[status(thm)],[f541]) ).

fof(f541_sk,plain,
    ! [A,B] :
      ( ( in(B,A)
        | set_difference(A,singleton(B)) = A )
      & ( ~ in(B,A)
        | set_difference(A,singleton(B)) != A ) ),
    inference(skolemisation,[status(esa)],[f541_nnf]) ).

cnf(c2803,plain,
    ( ~ in(X1,X0)
    | set_difference(X0,singleton(X1)) != X0 ),
    inference(cnf_transformation,[status(esa)],[f541_sk]) ).

fof(f552,axiom,
    ! [A,B] :
      ~ ( empty(B)
        & in(A,B) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_boole) ).

fof(f552_nnf,plain,
    ! [A,B] :
      ( ~ empty(B)
      | ~ in(A,B) ),
    inference(nnf_transformation,[status(thm)],[f552]) ).

fof(f552_sk,plain,
    ! [A,B] :
      ( ~ empty(B)
      | ~ in(A,B) ),
    inference(skolemisation,[status(esa)],[f552_nnf]) ).

cnf(c2821,plain,
    ( ~ empty(X1)
    | ~ in(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f552_sk]) ).

fof(f554,axiom,
    ! [A,B] :
      ~ ( ! [C] :
            ~ ( ! [D] :
                  ~ ( in(D,C)
                    & in(D,B) )
              & in(C,B) )
        & in(A,B) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_tarski) ).

fof(f554_nnf,plain,
    ! [A,B] :
      ( ? [C] :
          ( ! [D] :
              ( ~ in(D,C)
              | ~ in(D,B) )
          & in(C,B) )
      | ~ in(A,B) ),
    inference(nnf_transformation,[status(thm)],[f554]) ).

fof(f554_sk,plain,
    ! [A,B,D] :
      ( ( ( ~ in(D,sk427(A,B))
          | ~ in(D,B) )
        & in(sk427(A,B),B) )
      | ~ in(A,B) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sk427])],[f554_nnf]) ).

cnf(c2825,plain,
    ( ~ in(X3,sk427(X0,X1))
    | ~ in(X3,X1)
    | ~ in(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f554_sk]) ).

cnf(goal_0,negated_conjecture,
    true != false,
    inference(equality_encoding,[status(esa)],[c0,c1,c129,c251,c269,c277,c419,c534,c635,c637,c643,c647,c656,c658,c663,c680,c717,c722,c768,c772,c774,c813,c818,c826,c873,c880,c887,c894,c1124,c1129,c1138,c1160,c1165,c1183,c1214,c1219,c1228,c1240,c2697,c2703,c2712,c2748,c2772,c2781,c2788,c2789,c2796,c2803,c2821,c2825]) ).

cnf(g0_0,plain,
    true != true,
    inference(rw,[status(thm)],[goal_0,t20432]) ).

cnf(contradiction_0,plain,
    $false,
    inference(trivial_inequality_removal,[status(thm)],[g0_0]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU341+2 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04  % Command  : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.09/0.40  % Computer : n008.cluster.edu
% 0.09/0.40  % Model    : x86_64 x86_64
% 0.09/0.40  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.40  % Memory   : 8046.5625MB
% 0.09/0.40  % OS       : Linux 6.8.0-71-generic
% 0.09/0.40  % CPULimit : 300
% 0.09/0.40  % WCLimit  : 300
% 0.09/0.40  % DateTime : Thu Sep 24 13:46:39 UTC 2026
% 0.09/0.40  % CPUTime  : 
% 0.09/0.40  Running run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 75.06/10.01  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 75.06/10.01  % SZS output start Proof for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
%------------------------------------------------------------------------------