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Leo-III---1.8.0.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : Leo-III---1.8.0
% Problem  : SEU200+2 : TPTP v9.3.1. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Sun Sep 27 08:38:00 AM UTC 2026

% Result   : Theorem 10.12s 8.81s
% Output   : Refutation 10.64s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :  178
% Syntax   : Number of formulae    :  358 (  69 unt;   0 typ;   0 def)
%            Number of atoms       : 1185 ( 268 equ;   0 cnn)
%            Maximal formula atoms :   20 (   3 avg)
%            Number of connectives : 3691 ( 140   ~;  22   |; 290   &;2724   @)
%                                         (  64 <=>; 451  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   19 (   7 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   35 (  33 usr;   2 con; 0-3 aty)
%            Number of variables   :  876 (   0   ^; 824   !;  52   ?; 876   :)

% Comments : 
%------------------------------------------------------------------------------
thf(relation_decl,type,
    relation: $i > $o ).

thf(subset_decl,type,
    subset: $i > $i > $o ).

thf(relation_rng_decl,type,
    relation_rng: $i > $i ).

thf(relation_rng_restriction_decl,type,
    relation_rng_restriction: $i > $i > $i ).

thf(cast_to_subset_decl,type,
    cast_to_subset: $i > $i ).

thf(element_decl,type,
    element: $i > $i > $o ).

thf(powerset_decl,type,
    powerset: $i > $i ).

thf(empty_set_decl,type,
    empty_set: $i ).

thf(union_of_subsets_decl,type,
    union_of_subsets: $i > $i > $i ).

thf(complements_of_subsets_decl,type,
    complements_of_subsets: $i > $i > $i ).

thf(subset_difference_decl,type,
    subset_difference: $i > $i > $i > $i ).

thf(meet_of_subsets_decl,type,
    meet_of_subsets: $i > $i > $i ).

thf(empty_decl,type,
    empty: $i > $o ).

thf(in_decl,type,
    in: $i > $i > $o ).

thf(disjoint_decl,type,
    disjoint: $i > $i > $o ).

thf(set_intersection2_decl,type,
    set_intersection2: $i > $i > $i ).

thf(set_union2_decl,type,
    set_union2: $i > $i > $i ).

thf(singleton_decl,type,
    singleton: $i > $i ).

thf(set_difference_decl,type,
    set_difference: $i > $i > $i ).

thf(ordered_pair_decl,type,
    ordered_pair: $i > $i > $i ).

thf(unordered_pair_decl,type,
    unordered_pair: $i > $i > $i ).

thf(union_decl,type,
    union: $i > $i ).

thf(subset_complement_decl,type,
    subset_complement: $i > $i > $i ).

thf(cartesian_product2_decl,type,
    cartesian_product2: $i > $i > $i ).

thf(proper_subset_decl,type,
    proper_subset: $i > $i > $o ).

thf(set_meet_decl,type,
    set_meet: $i > $i ).

thf(identity_relation_decl,type,
    identity_relation: $i > $i ).

thf(relation_field_decl,type,
    relation_field: $i > $i ).

thf(relation_dom_decl,type,
    relation_dom: $i > $i ).

thf(relation_dom_restriction_decl,type,
    relation_dom_restriction: $i > $i > $i ).

thf(are_equipotent_decl,type,
    are_equipotent: $i > $i > $o ).

thf(relation_composition_decl,type,
    relation_composition: $i > $i > $i ).

thf(relation_inverse_decl,type,
    relation_inverse: $i > $i ).

thf(22,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( A @ singleton ) )
    <=> ! [C: $i] :
          ( ( B @ ( C @ in ) )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_tarski) ).

thf(253,plain,
    ! [A: $i,B: $i] :
      ( ( ! [C: $i] :
            ( ( ( C = A )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ( C = A ) ) )
       => ( B
          = ( A @ singleton ) ) )
      & ( ( B
          = ( A @ singleton ) )
       => ! [C: $i] :
            ( ( ( C = A )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ( C = A ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[22]) ).

thf(89,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ~ ( ( ( B @ ( A @ complements_of_subsets ) )
            = empty_set )
          & ( B != empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_setfam_1) ).

thf(699,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ~ ( ( ( B @ ( A @ complements_of_subsets ) )
            = empty_set )
          & ( B != empty_set ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[89]) ).

thf(33,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( A @ ( B @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(365,plain,
    ! [A: $i] :
      ( ( ! [B: $i] :
            ~ ( A @ ( B @ in ) )
       => ( A = empty_set ) )
      & ( ( A = empty_set )
       => ! [B: $i] :
            ~ ( A @ ( B @ in ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[33]) ).

thf(141,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ ( B @ ( A @ unordered_pair ) @ subset ) )
    <=> ( ( C @ ( B @ in ) )
        & ( C @ ( A @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t38_zfmisc_1) ).

thf(962,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( ( C @ ( B @ in ) )
          & ( C @ ( A @ in ) ) )
       => ( C @ ( B @ ( A @ unordered_pair ) @ subset ) ) )
      & ( ( C @ ( B @ ( A @ unordered_pair ) @ subset ) )
       => ( ( C @ ( B @ in ) )
          & ( C @ ( A @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[141]) ).

thf(57,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ disjoint ) )
    <=> ( ( B @ ( A @ set_difference ) )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(481,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( B @ ( A @ set_difference ) )
          = A )
       => ( B @ ( A @ disjoint ) ) )
      & ( ( B @ ( A @ disjoint ) )
       => ( ( B @ ( A @ set_difference ) )
          = A ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[57]) ).

thf(124,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ relation ) )
     => ( B @ ( A @ set_intersection2 ) @ relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_relat_1) ).

thf(909,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ relation ) )
     => ( B @ ( A @ set_intersection2 ) @ relation ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[124]) ).

thf(85,axiom,
    ! [A: $i] :
      ( ( empty_set @ ( A @ set_union2 ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_boole) ).

thf(628,plain,
    ! [A: $i] :
      ( ( empty_set @ ( A @ set_union2 ) )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[85]) ).

thf(37,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ disjoint ) )
     => ( A @ ( B @ disjoint ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',symmetry_r1_xboole_0) ).

thf(408,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ disjoint ) )
     => ( A @ ( B @ disjoint ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[37]) ).

thf(169,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ relation ) )
     => ( B @ ( A @ relation_composition ) @ relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k5_relat_1) ).

thf(1158,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ relation ) )
     => ( B @ ( A @ relation_composition ) @ relation ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[169]) ).

thf(94,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( C @ ( B @ ( A @ ordered_pair ) @ in ) )
       => ( ( C @ relation_field @ ( B @ in ) )
          & ( C @ relation_field @ ( A @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t30_relat_1) ).

thf(741,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( C @ ( B @ ( A @ ordered_pair ) @ in ) )
       => ( ( C @ relation_field @ ( B @ in ) )
          & ( C @ relation_field @ ( A @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[94]) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( B @ empty )
        & ( B @ ( A @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_boole) ).

thf(202,plain,
    ! [A: $i,B: $i] :
      ~ ( ( B @ empty )
        & ( B @ ( A @ in ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

thf(13,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( A @ empty )
     => ~ ( A @ ( B @ set_union2 ) @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_xboole_0) ).

thf(217,plain,
    ! [A: $i,B: $i] :
      ( ~ ( A @ empty )
     => ~ ( A @ ( B @ set_union2 ) @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).

thf(24,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ ordered_pair ) )
      = ( A @ singleton @ ( B @ ( A @ unordered_pair ) @ unordered_pair ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_tarski) ).

thf(276,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ ordered_pair ) )
      = ( A @ singleton @ ( B @ ( A @ unordered_pair ) @ unordered_pair ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[24]) ).

thf(126,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ relation )
     => ( B @ ( A @ relation_dom_restriction ) @ relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k7_relat_1) ).

thf(913,plain,
    ! [A: $i,B: $i] :
      ( ( A @ relation )
     => ( B @ ( A @ relation_dom_restriction ) @ relation ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[126]) ).

thf(135,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ singleton @ ( A @ singleton @ subset ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(945,plain,
    ! [A: $i,B: $i] :
      ( ( B @ singleton @ ( A @ singleton @ subset ) )
     => ( A = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[135]) ).

thf(156,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B
              = ( A @ relation_inverse ) )
          <=> ! [C: $i,D: $i] :
                ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
              <=> ( A @ ( C @ ( D @ ordered_pair ) @ in ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d7_relat_1) ).

thf(1095,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( ! [C: $i,D: $i] :
                  ( ( ( A @ ( C @ ( D @ ordered_pair ) @ in ) )
                   => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) )
                  & ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
                   => ( A @ ( C @ ( D @ ordered_pair ) @ in ) ) ) )
             => ( B
                = ( A @ relation_inverse ) ) )
            & ( ( B
                = ( A @ relation_inverse ) )
             => ! [C: $i,D: $i] :
                  ( ( ( A @ ( C @ ( D @ ordered_pair ) @ in ) )
                   => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) )
                  & ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
                   => ( A @ ( C @ ( D @ ordered_pair ) @ in ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[156]) ).

thf(123,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ singleton @ ( A @ subset ) )
    <=> ( ( A
          = ( B @ singleton ) )
        | ( A = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_zfmisc_1) ).

thf(898,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( A
            = ( B @ singleton ) )
          | ( A = empty_set ) )
       => ( B @ singleton @ ( A @ subset ) ) )
      & ( ( B @ singleton @ ( A @ subset ) )
       => ( ( A
            = ( B @ singleton ) )
          | ( A = empty_set ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[123]) ).

thf(149,axiom,
    ! [A: $i] :
      ( ( ( A @ relation )
        & ~ ( A @ empty ) )
     => ~ ( A @ relation_rng @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc6_relat_1) ).

thf(1055,plain,
    ! [A: $i] :
      ( ( ( A @ relation )
        & ~ ( A @ empty ) )
     => ~ ( A @ relation_rng @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[149]) ).

thf(73,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( A @ empty )
     => ~ ( B @ ( A @ set_union2 ) @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_xboole_0) ).

thf(570,plain,
    ! [A: $i,B: $i] :
      ( ~ ( A @ empty )
     => ~ ( B @ ( A @ set_union2 ) @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[73]) ).

thf(3,axiom,
    ! [A: $i] :
      ( ( A @ cast_to_subset )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_subset_1) ).

thf(184,plain,
    ! [A: $i] :
      ( ( A @ cast_to_subset )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(93,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( ( B
          = ( A @ identity_relation ) )
      <=> ! [C: $i,D: $i] :
            ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
          <=> ( ( C = D )
              & ( A @ ( C @ in ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_relat_1) ).

thf(719,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( ( ! [C: $i,D: $i] :
              ( ( ( ( C = D )
                  & ( A @ ( C @ in ) ) )
               => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) )
              & ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
               => ( ( C = D )
                  & ( A @ ( C @ in ) ) ) ) )
         => ( B
            = ( A @ identity_relation ) ) )
        & ( ( B
            = ( A @ identity_relation ) )
         => ! [C: $i,D: $i] :
              ( ( ( ( C = D )
                  & ( A @ ( C @ in ) ) )
               => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) )
              & ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
               => ( ( C = D )
                  & ( A @ ( C @ in ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[93]) ).

thf(82,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ meet_of_subsets ) )
        = ( B @ set_meet ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_k6_setfam_1) ).

thf(619,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ meet_of_subsets ) )
        = ( B @ set_meet ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[82]) ).

thf(178,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ proper_subset ) )
    <=> ( ( A != B )
        & ( B @ ( A @ subset ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_xboole_0) ).

thf(1191,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( A != B )
          & ( B @ ( A @ subset ) ) )
       => ( B @ ( A @ proper_subset ) ) )
      & ( ( B @ ( A @ proper_subset ) )
       => ( ( A != B )
          & ( B @ ( A @ subset ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[178]) ).

thf(64,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( D @ ( C @ cartesian_product2 ) @ ( B @ ( A @ ordered_pair ) @ in ) )
    <=> ( ( D @ ( B @ in ) )
        & ( C @ ( A @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t106_zfmisc_1) ).

thf(542,plain,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ( D @ ( B @ in ) )
          & ( C @ ( A @ in ) ) )
       => ( D @ ( C @ cartesian_product2 ) @ ( B @ ( A @ ordered_pair ) @ in ) ) )
      & ( ( D @ ( C @ cartesian_product2 ) @ ( B @ ( A @ ordered_pair ) @ in ) )
       => ( ( D @ ( B @ in ) )
          & ( C @ ( A @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[64]) ).

thf(90,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( B @ ( A @ in ) )
        & ( B @ ( A @ singleton @ disjoint ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(702,plain,
    ! [A: $i,B: $i] :
      ~ ( ( B @ ( A @ in ) )
        & ( B @ ( A @ singleton @ disjoint ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[90]) ).

thf(96,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( A @ ( B @ proper_subset ) )
        & ( B @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(751,plain,
    ! [A: $i,B: $i] :
      ~ ( ( A @ ( B @ proper_subset ) )
        & ( B @ ( A @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[96]) ).

thf(69,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ proper_subset ) )
     => ~ ( A @ ( B @ proper_subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_xboole_0) ).

thf(559,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ proper_subset ) )
     => ~ ( A @ ( B @ proper_subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[69]) ).

thf(142,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i,C: $i] :
          ( ( C @ relation )
         => ( ( C
              = ( B @ ( A @ relation_dom_restriction ) ) )
          <=> ! [D: $i,E: $i] :
                ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
              <=> ( ( A @ ( E @ ( D @ ordered_pair ) @ in ) )
                  & ( B @ ( D @ in ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d11_relat_1) ).

thf(969,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i,C: $i] :
          ( ( C @ relation )
         => ( ( ! [D: $i,E: $i] :
                  ( ( ( ( A @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( B @ ( D @ in ) ) )
                   => ( C @ ( E @ ( D @ ordered_pair ) @ in ) ) )
                  & ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
                   => ( ( A @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( B @ ( D @ in ) ) ) ) )
             => ( C
                = ( B @ ( A @ relation_dom_restriction ) ) ) )
            & ( ( C
                = ( B @ ( A @ relation_dom_restriction ) ) )
             => ! [D: $i,E: $i] :
                  ( ( ( ( A @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( B @ ( D @ in ) ) )
                   => ( C @ ( E @ ( D @ ordered_pair ) @ in ) ) )
                  & ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
                   => ( ( A @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( B @ ( D @ in ) ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[142]) ).

thf(40,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_difference ) @ ( A @ set_difference ) )
      = ( B @ ( A @ set_intersection2 ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t48_xboole_1) ).

thf(416,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_difference ) @ ( A @ set_difference ) )
      = ( B @ ( A @ set_intersection2 ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[40]) ).

thf(116,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( A @ relation_inverse @ relation_inverse )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k4_relat_1) ).

thf(866,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( A @ relation_inverse @ relation_inverse )
        = A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[116]) ).

thf(160,axiom,
    ! [A: $i] :
      ( ( A @ empty )
     => ( A @ relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cc1_relat_1) ).

thf(1119,plain,
    ! [A: $i] :
      ( ( A @ empty )
     => ( A @ relation ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[160]) ).

thf(179,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ! [C: $i] :
              ( ( C @ relation )
             => ( ( C
                  = ( B @ ( A @ relation_composition ) ) )
              <=> ! [D: $i,E: $i] :
                    ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
                  <=> ? [F: $i] :
                        ( ( B @ ( E @ ( F @ ordered_pair ) @ in ) )
                        & ( A @ ( F @ ( D @ ordered_pair ) @ in ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_relat_1) ).

thf(1201,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ! [C: $i] :
              ( ( C @ relation )
             => ( ( ! [D: $i,E: $i] :
                      ( ( ? [F: $i] :
                            ( ( B @ ( E @ ( F @ ordered_pair ) @ in ) )
                            & ( A @ ( F @ ( D @ ordered_pair ) @ in ) ) )
                       => ( C @ ( E @ ( D @ ordered_pair ) @ in ) ) )
                      & ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
                       => ? [F: $i] :
                            ( ( B @ ( E @ ( F @ ordered_pair ) @ in ) )
                            & ( A @ ( F @ ( D @ ordered_pair ) @ in ) ) ) ) )
                 => ( C
                    = ( B @ ( A @ relation_composition ) ) ) )
                & ( ( C
                    = ( B @ ( A @ relation_composition ) ) )
                 => ! [D: $i,E: $i] :
                      ( ( ? [F: $i] :
                            ( ( B @ ( E @ ( F @ ordered_pair ) @ in ) )
                            & ( A @ ( F @ ( D @ ordered_pair ) @ in ) ) )
                       => ( C @ ( E @ ( D @ ordered_pair ) @ in ) ) )
                      & ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
                       => ? [F: $i] :
                            ( ( B @ ( E @ ( F @ ordered_pair ) @ in ) )
                            & ( A @ ( F @ ( D @ ordered_pair ) @ in ) ) ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[179]) ).

thf(113,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( D @ relation )
     => ( ( D @ ( C @ identity_relation @ relation_composition ) @ ( B @ ( A @ ordered_pair ) @ in ) )
      <=> ( ( D @ ( B @ ( A @ ordered_pair ) @ in ) )
          & ( C @ ( A @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t74_relat_1) ).

thf(849,plain,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( D @ relation )
     => ( ( ( ( D @ ( B @ ( A @ ordered_pair ) @ in ) )
            & ( C @ ( A @ in ) ) )
         => ( D @ ( C @ identity_relation @ relation_composition ) @ ( B @ ( A @ ordered_pair ) @ in ) ) )
        & ( ( D @ ( C @ identity_relation @ relation_composition ) @ ( B @ ( A @ ordered_pair ) @ in ) )
         => ( ( D @ ( B @ ( A @ ordered_pair ) @ in ) )
            & ( C @ ( A @ in ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[113]) ).

thf(155,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B
            = ( A @ relation_rng ) )
        <=> ! [C: $i] :
              ( ( B @ ( C @ in ) )
            <=> ? [D: $i] : ( A @ ( C @ ( D @ ordered_pair ) @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_relat_1) ).

thf(1074,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( ! [C: $i] :
                ( ( ? [D: $i] : ( A @ ( C @ ( D @ ordered_pair ) @ in ) )
                 => ( B @ ( C @ in ) ) )
                & ( ( B @ ( C @ in ) )
                 => ? [D: $i] : ( A @ ( C @ ( D @ ordered_pair ) @ in ) ) ) )
           => ( B
              = ( A @ relation_rng ) ) )
          & ( ( B
              = ( A @ relation_rng ) )
           => ! [C: $i] :
                ( ( ? [D: $i] : ( A @ ( C @ ( D @ ordered_pair ) @ in ) )
                 => ( B @ ( C @ in ) ) )
                & ( ( B @ ( C @ in ) )
                 => ? [D: $i] : ( A @ ( C @ ( D @ ordered_pair ) @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[155]) ).

thf(18,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ element ) )
     => ( ( B @ ( A @ in ) )
        | ( B @ empty ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_subset) ).

thf(233,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ element ) )
     => ( ( B @ ( A @ in ) )
        | ( B @ empty ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[18]) ).

thf(130,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B @ ( A @ subset ) )
           => ( ( B @ relation_rng @ ( A @ relation_rng @ subset ) )
              & ( B @ relation_dom @ ( A @ relation_dom @ subset ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t25_relat_1) ).

thf(925,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B @ ( A @ subset ) )
           => ( ( B @ relation_rng @ ( A @ relation_rng @ subset ) )
              & ( B @ relation_dom @ ( A @ relation_dom @ subset ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[130]) ).

thf(99,axiom,
    ! [A: $i,B: $i] : ( B @ ( A @ set_union2 ) @ ( A @ subset ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(761,plain,
    ! [A: $i,B: $i] : ( B @ ( A @ set_union2 ) @ ( A @ subset ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[99]) ).

thf(14,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ( B @ ( A @ disjoint ) )
          & ? [C: $i] : ( B @ ( A @ set_intersection2 ) @ ( C @ in ) ) )
      & ~ ( ! [C: $i] :
              ~ ( B @ ( A @ set_intersection2 ) @ ( C @ in ) )
          & ~ ( B @ ( A @ disjoint ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_xboole_0) ).

thf(220,plain,
    ! [A: $i,B: $i] :
      ( ~ ( ( B @ ( A @ disjoint ) )
          & ? [C: $i] : ( B @ ( A @ set_intersection2 ) @ ( C @ in ) ) )
      & ~ ( ! [C: $i] :
              ~ ( B @ ( A @ set_intersection2 ) @ ( C @ in ) )
          & ~ ( B @ ( A @ disjoint ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[14]) ).

thf(150,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ empty ) )
     => ( ( B @ ( A @ relation_composition ) @ relation )
        & ( B @ ( A @ relation_composition ) @ empty ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc9_relat_1) ).

thf(1057,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ empty ) )
     => ( ( B @ ( A @ relation_composition ) @ relation )
        & ( B @ ( A @ relation_composition ) @ empty ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[150]) ).

thf(138,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( A @ relation_dom @ ( B @ ( A @ relation_composition ) @ relation_dom @ subset ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t44_relat_1) ).

thf(952,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( A @ relation_dom @ ( B @ ( A @ relation_composition ) @ relation_dom @ subset ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[138]) ).

thf(70,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ subset_complement ) )
        = ( B @ ( A @ set_difference ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_subset_1) ).

thf(561,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ subset_complement ) )
        = ( B @ ( A @ set_difference ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[70]) ).

thf(44,axiom,
    ! [A: $i] :
      ( ( empty_set @ ( A @ set_difference ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_boole) ).

thf(429,plain,
    ! [A: $i] :
      ( ( empty_set @ ( A @ set_difference ) )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[44]) ).

thf(16,axiom,
    ! [A: $i] :
      ~ ( A @ singleton @ empty ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_subset_1) ).

thf(229,plain,
    ! [A: $i] :
      ~ ( A @ singleton @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[16]) ).

thf(7,axiom,
    ? [A: $i] : ( A @ empty ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_xboole_0) ).

thf(197,plain,
    ? [A: $i] : ( A @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(84,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( ( B @ ( A @ singleton @ set_union2 ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l23_zfmisc_1) ).

thf(625,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( ( B @ ( A @ singleton @ set_union2 ) )
        = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[84]) ).

thf(29,axiom,
    ! [A: $i] :
      ~ ( A @ powerset @ empty ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_subset_1) ).

thf(329,plain,
    ! [A: $i] :
      ~ ( A @ powerset @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[29]) ).

thf(110,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ ( A @ ( B @ relation_dom_restriction ) @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t88_relat_1) ).

thf(830,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ ( A @ ( B @ relation_dom_restriction ) @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[110]) ).

thf(127,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( ( A @ ( B @ relation_dom_restriction ) )
        = ( B @ ( A @ identity_relation @ relation_composition ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t94_relat_1) ).

thf(916,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( ( A @ ( B @ relation_dom_restriction ) )
        = ( B @ ( A @ identity_relation @ relation_composition ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[127]) ).

thf(52,axiom,
    ! [A: $i,B: $i] :
      ( ( ~ ( B @ empty )
        & ~ ( A @ empty ) )
     => ~ ( B @ ( A @ cartesian_product2 ) @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc4_subset_1) ).

thf(467,plain,
    ! [A: $i,B: $i] :
      ( ( ~ ( B @ empty )
        & ~ ( A @ empty ) )
     => ~ ( B @ ( A @ cartesian_product2 ) @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[52]) ).

thf(88,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ( A @ powerset @ ( B @ ( A @ subset_complement ) @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_subset_1) ).

thf(697,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ( A @ powerset @ ( B @ ( A @ subset_complement ) @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[88]) ).

thf(119,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ singleton @ subset ) )
    <=> ( B @ ( A @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(874,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ ( A @ in ) )
       => ( B @ ( A @ singleton @ subset ) ) )
      & ( ( B @ ( A @ singleton @ subset ) )
       => ( B @ ( A @ in ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[119]) ).

thf(136,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ ( B @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( C @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_xboole_1) ).

thf(948,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ ( B @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( C @ ( A @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[136]) ).

thf(161,axiom,
    ? [A: $i] :
      ( ( A @ relation )
      & ~ ( A @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_relat_1) ).

thf(1121,plain,
    ? [A: $i] :
      ( ( A @ relation )
      & ~ ( A @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[161]) ).

thf(152,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( C @ ( B @ relation_rng_restriction ) @ relation_rng @ ( A @ in ) )
      <=> ( ( C @ relation_rng @ ( A @ in ) )
          & ( B @ ( A @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t115_relat_1) ).

thf(1064,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( ( ( C @ relation_rng @ ( A @ in ) )
            & ( B @ ( A @ in ) ) )
         => ( C @ ( B @ relation_rng_restriction ) @ relation_rng @ ( A @ in ) ) )
        & ( ( C @ ( B @ relation_rng_restriction ) @ relation_rng @ ( A @ in ) )
         => ( ( C @ relation_rng @ ( A @ in ) )
            & ( B @ ( A @ in ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[152]) ).

thf(117,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ ( A @ relation_rng_restriction ) @ relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k8_relat_1) ).

thf(869,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ ( A @ relation_rng_restriction ) @ relation ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[117]) ).

thf(79,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( A @ powerset @ powerset @ ( B @ ( A @ complements_of_subsets ) @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k7_setfam_1) ).

thf(610,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( A @ powerset @ powerset @ ( B @ ( A @ complements_of_subsets ) @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[79]) ).

thf(54,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ complements_of_subsets ) @ ( A @ complements_of_subsets ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k7_setfam_1) ).

thf(471,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ complements_of_subsets ) @ ( A @ complements_of_subsets ) )
        = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[54]) ).

thf(121,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( C @ singleton @ ( B @ set_difference ) @ ( A @ subset ) )
        | ( A @ ( C @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_zfmisc_1) ).

thf(884,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( C @ singleton @ ( B @ set_difference ) @ ( A @ subset ) )
        | ( A @ ( C @ in ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[121]) ).

thf(170,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ relation_rng @ ( A @ ( B @ relation_dom_restriction ) @ relation_rng @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_relat_1) ).

thf(1160,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ relation_rng @ ( A @ ( B @ relation_dom_restriction ) @ relation_rng @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[170]) ).

thf(147,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B
            = ( A @ relation_dom ) )
        <=> ! [C: $i] :
              ( ( B @ ( C @ in ) )
            <=> ? [D: $i] : ( A @ ( D @ ( C @ ordered_pair ) @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_relat_1) ).

thf(1028,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( ! [C: $i] :
                ( ( ? [D: $i] : ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
                 => ( B @ ( C @ in ) ) )
                & ( ( B @ ( C @ in ) )
                 => ? [D: $i] : ( A @ ( D @ ( C @ ordered_pair ) @ in ) ) ) )
           => ( B
              = ( A @ relation_dom ) ) )
          & ( ( B
              = ( A @ relation_dom ) )
           => ! [C: $i] :
                ( ( ? [D: $i] : ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
                 => ( B @ ( C @ in ) ) )
                & ( ( B @ ( C @ in ) )
                 => ? [D: $i] : ( A @ ( D @ ( C @ ordered_pair ) @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[147]) ).

thf(67,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( B @ ( A @ in ) )
     => ( B @ ( A @ singleton @ disjoint ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(554,plain,
    ! [A: $i,B: $i] :
      ( ~ ( B @ ( A @ in ) )
     => ( B @ ( A @ singleton @ disjoint ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[67]) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( B @ empty )
        & ( A != B )
        & ( A @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_boole) ).

thf(193,plain,
    ! [A: $i,B: $i] :
      ~ ( ( B @ empty )
        & ( A != B )
        & ( A @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(58,axiom,
    ( ( empty_set @ powerset )
    = ( empty_set @ singleton ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_zfmisc_1) ).

thf(489,plain,
    ( ( empty_set @ powerset )
    = ( empty_set @ singleton ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[58]) ).

thf(83,axiom,
    ! [A: $i] :
      ( ( empty_set @ ( A @ set_intersection2 ) )
      = empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_boole) ).

thf(622,plain,
    ! [A: $i] :
      ( ( empty_set @ ( A @ set_intersection2 ) )
      = empty_set ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[83]) ).

thf(158,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B @ relation_rng @ ( A @ relation_dom @ subset ) )
           => ( ( A @ ( B @ relation_composition ) @ relation_rng )
              = ( A @ relation_rng ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t47_relat_1) ).

thf(1114,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B @ relation_rng @ ( A @ relation_dom @ subset ) )
           => ( ( A @ ( B @ relation_composition ) @ relation_rng )
              = ( A @ relation_rng ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[158]) ).

thf(125,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ ( B @ ( A @ relation_rng_restriction ) @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t117_relat_1) ).

thf(911,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ ( B @ ( A @ relation_rng_restriction ) @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[125]) ).

thf(103,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B @ ( A @ subset ) )
          <=> ! [C: $i,D: $i] :
                ( ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
               => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_relat_1) ).

thf(779,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( ! [C: $i,D: $i] :
                  ( ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
                 => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) )
             => ( B @ ( A @ subset ) ) )
            & ( ( B @ ( A @ subset ) )
             => ! [C: $i,D: $i] :
                  ( ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
                 => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[103]) ).

thf(77,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_union2 ) )
      = ( A @ ( B @ set_union2 ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_xboole_0) ).

thf(605,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_union2 ) )
      = ( A @ ( B @ set_union2 ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[77]) ).

thf(63,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( B @ ( A @ set_intersection2 ) ) )
    <=> ! [D: $i] :
          ( ( C @ ( D @ in ) )
        <=> ( ( B @ ( D @ in ) )
            & ( A @ ( D @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(515,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ! [D: $i] :
            ( ( ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) )
       => ( C
          = ( B @ ( A @ set_intersection2 ) ) ) )
      & ( ( C
          = ( B @ ( A @ set_intersection2 ) ) )
       => ! [D: $i] :
            ( ( ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[63]) ).

thf(165,axiom,
    ! [A: $i] : ( A @ ( empty_set @ subset ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(1150,plain,
    ! [A: $i] : ( A @ ( empty_set @ subset ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[165]) ).

thf(10,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( A @ powerset @ ( B @ ( A @ union_of_subsets ) @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k5_setfam_1) ).

thf(205,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( A @ powerset @ ( B @ ( A @ union_of_subsets ) @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(62,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( D @ ( C @ cartesian_product2 ) @ ( B @ ( A @ ordered_pair ) @ in ) )
    <=> ( ( D @ ( B @ in ) )
        & ( C @ ( A @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(508,plain,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ( D @ ( B @ in ) )
          & ( C @ ( A @ in ) ) )
       => ( D @ ( C @ cartesian_product2 ) @ ( B @ ( A @ ordered_pair ) @ in ) ) )
      & ( ( D @ ( C @ cartesian_product2 ) @ ( B @ ( A @ ordered_pair ) @ in ) )
       => ( ( D @ ( B @ in ) )
          & ( C @ ( A @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[62]) ).

thf(28,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ! [C: $i] :
          ( ( A @ powerset @ powerset @ ( C @ element ) )
         => ( ( C
              = ( B @ ( A @ complements_of_subsets ) ) )
          <=> ! [D: $i] :
                ( ( A @ powerset @ ( D @ element ) )
               => ( ( C @ ( D @ in ) )
                <=> ( B @ ( D @ ( A @ subset_complement ) @ in ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_setfam_1) ).

thf(311,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ! [C: $i] :
          ( ( A @ powerset @ powerset @ ( C @ element ) )
         => ( ( ! [D: $i] :
                  ( ( A @ powerset @ ( D @ element ) )
                 => ( ( ( B @ ( D @ ( A @ subset_complement ) @ in ) )
                     => ( C @ ( D @ in ) ) )
                    & ( ( C @ ( D @ in ) )
                     => ( B @ ( D @ ( A @ subset_complement ) @ in ) ) ) ) )
             => ( C
                = ( B @ ( A @ complements_of_subsets ) ) ) )
            & ( ( C
                = ( B @ ( A @ complements_of_subsets ) ) )
             => ! [D: $i] :
                  ( ( A @ powerset @ ( D @ element ) )
                 => ( ( ( B @ ( D @ ( A @ subset_complement ) @ in ) )
                     => ( C @ ( D @ in ) ) )
                    & ( ( C @ ( D @ in ) )
                     => ( B @ ( D @ ( A @ subset_complement ) @ in ) ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[28]) ).

thf(129,axiom,
    ! [A: $i] :
      ( ( A @ empty )
     => ( ( A @ relation_dom @ relation )
        & ( A @ relation_dom @ empty ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc7_relat_1) ).

thf(921,plain,
    ! [A: $i] :
      ( ( A @ empty )
     => ( ( A @ relation_dom @ relation )
        & ( A @ relation_dom @ empty ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[129]) ).

thf(154,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B @ relation_dom @ ( A @ relation_rng @ subset ) )
           => ( ( B @ ( A @ relation_composition ) @ relation_dom )
              = ( A @ relation_dom ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_relat_1) ).

thf(1071,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( B @ relation_dom @ ( A @ relation_rng @ subset ) )
           => ( ( B @ ( A @ relation_composition ) @ relation_dom )
              = ( A @ relation_dom ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[154]) ).

thf(176,axiom,
    ! [A: $i,B: $i] : ( A @ ( B @ ( A @ set_difference ) @ subset ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(1187,plain,
    ! [A: $i,B: $i] : ( A @ ( B @ ( A @ set_difference ) @ subset ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[176]) ).

thf(146,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ relation ) )
     => ( B @ ( A @ set_union2 ) @ relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_relat_1) ).

thf(1026,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ relation ) )
     => ( B @ ( A @ set_union2 ) @ relation ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[146]) ).

thf(163,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( B @ relation_rng @ ( B @ ( A @ relation_composition ) @ relation_rng @ subset ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_relat_1) ).

thf(1146,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( B @ relation_rng @ ( B @ ( A @ relation_composition ) @ relation_rng @ subset ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[163]) ).

thf(95,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ powerset @ ( A @ element ) )
    <=> ( B @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_subset) ).

thf(745,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ ( A @ subset ) )
       => ( B @ powerset @ ( A @ element ) ) )
      & ( ( B @ powerset @ ( A @ element ) )
       => ( B @ ( A @ subset ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[95]) ).

thf(25,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ union_of_subsets ) )
        = ( B @ union ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_k5_setfam_1) ).

thf(279,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ union_of_subsets ) )
        = ( B @ union ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[25]) ).

thf(74,axiom,
    ! [A: $i] :
      ( ( A != empty_set )
     => ! [B: $i] :
          ( ( A @ powerset @ ( B @ element ) )
         => ! [C: $i] :
              ( ( A @ ( C @ element ) )
             => ( ~ ( B @ ( C @ in ) )
               => ( B @ ( A @ subset_complement ) @ ( C @ in ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t50_subset_1) ).

thf(573,plain,
    ! [A: $i] :
      ( ( A != empty_set )
     => ! [B: $i] :
          ( ( A @ powerset @ ( B @ element ) )
         => ! [C: $i] :
              ( ( A @ ( C @ element ) )
             => ( ~ ( B @ ( C @ in ) )
               => ( B @ ( A @ subset_complement ) @ ( C @ in ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[74]) ).

thf(1,conjecture,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( B @ relation_rng @ ( B @ ( A @ relation_rng_restriction ) @ relation_rng @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t118_relat_1) ).

thf(2,negated_conjecture,
    ~ ! [A: $i,B: $i] :
        ( ( B @ relation )
       => ( B @ relation_rng @ ( B @ ( A @ relation_rng_restriction ) @ relation_rng @ subset ) ) ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(180,plain,
    ~ ! [A: $i,B: $i] :
        ( ( B @ relation )
       => ( B @ relation_rng @ ( B @ ( A @ relation_rng_restriction ) @ relation_rng @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(48,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( B @ ( A @ set_union2 ) @ set_difference ) )
      = ( B @ ( A @ set_difference ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t40_xboole_1) ).

thf(444,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( B @ ( A @ set_union2 ) @ set_difference ) )
      = ( B @ ( A @ set_difference ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[48]) ).

thf(167,axiom,
    ! [A: $i] : ( A @ identity_relation @ relation ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k6_relat_1) ).

thf(1154,plain,
    ! [A: $i] : ( A @ identity_relation @ relation ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[167]) ).

thf(42,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ ( A @ set_intersection2 ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',idempotence_k3_xboole_0) ).

thf(423,plain,
    ! [A: $i] :
      ( ( A @ ( A @ set_intersection2 ) )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[42]) ).

thf(162,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( A @ powerset ) )
    <=> ! [C: $i] :
          ( ( B @ ( C @ in ) )
        <=> ( A @ ( C @ subset ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_zfmisc_1) ).

thf(1125,plain,
    ! [A: $i,B: $i] :
      ( ( ! [C: $i] :
            ( ( ( A @ ( C @ subset ) )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ( A @ ( C @ subset ) ) ) )
       => ( B
          = ( A @ powerset ) ) )
      & ( ( B
          = ( A @ powerset ) )
       => ! [C: $i] :
            ( ( ( A @ ( C @ subset ) )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ( A @ ( C @ subset ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[162]) ).

thf(39,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( ( B @ ( A @ singleton @ set_union2 ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_zfmisc_1) ).

thf(413,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( ( B @ ( A @ singleton @ set_union2 ) )
        = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[39]) ).

thf(105,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ! [B: $i,C: $i] :
            ~ ( A @ ( C @ ( B @ ordered_pair ) @ in ) )
       => ( A = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t56_relat_1) ).

thf(787,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ! [B: $i,C: $i] :
            ~ ( A @ ( C @ ( B @ ordered_pair ) @ in ) )
       => ( A = empty_set ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[105]) ).

thf(92,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( B @ ( C @ cartesian_product2 ) @ ( A @ ( C @ cartesian_product2 ) @ subset ) )
        & ( C @ ( B @ cartesian_product2 ) @ ( C @ ( A @ cartesian_product2 ) @ subset ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t118_zfmisc_1) ).

thf(713,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( B @ ( C @ cartesian_product2 ) @ ( A @ ( C @ cartesian_product2 ) @ subset ) )
        & ( C @ ( B @ cartesian_product2 ) @ ( C @ ( A @ cartesian_product2 ) @ subset ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[92]) ).

thf(31,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( B @ ( A @ unordered_pair ) ) )
    <=> ! [D: $i] :
          ( ( C @ ( D @ in ) )
        <=> ( ( D = B )
            | ( D = A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_tarski) ).

thf(335,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ! [D: $i] :
            ( ( ( ( D = B )
                | ( D = A ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( D = B )
                | ( D = A ) ) ) )
       => ( C
          = ( B @ ( A @ unordered_pair ) ) ) )
      & ( ( C
          = ( B @ ( A @ unordered_pair ) ) )
       => ! [D: $i] :
            ( ( ( ( D = B )
                | ( D = A ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( D = B )
                | ( D = A ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[31]) ).

thf(128,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ ( A @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( C @ ( B @ set_intersection2 ) @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t19_xboole_1) ).

thf(919,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ ( A @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( C @ ( B @ set_intersection2 ) @ ( A @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[128]) ).

thf(4,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B != empty_set )
       => ( ( B @ ( A @ complements_of_subsets ) @ ( A @ union_of_subsets ) )
          = ( B @ ( A @ meet_of_subsets ) @ ( A @ cast_to_subset @ ( A @ subset_difference ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t48_setfam_1) ).

thf(187,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B != empty_set )
       => ( ( B @ ( A @ complements_of_subsets ) @ ( A @ union_of_subsets ) )
          = ( B @ ( A @ meet_of_subsets ) @ ( A @ cast_to_subset @ ( A @ subset_difference ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(23,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ powerset @ ( C @ element ) )
        & ( A @ powerset @ ( B @ element ) ) )
     => ( A @ powerset @ ( C @ ( B @ ( A @ subset_difference ) ) @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k6_subset_1) ).

thf(274,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ powerset @ ( C @ element ) )
        & ( A @ powerset @ ( B @ element ) ) )
     => ( A @ powerset @ ( C @ ( B @ ( A @ subset_difference ) ) @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[23]) ).

thf(41,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ~ ( ( A != D )
        & ( A != C )
        & ( ( B @ ( A @ unordered_pair ) )
          = ( D @ ( C @ unordered_pair ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t10_zfmisc_1) ).

thf(419,plain,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ~ ( ( A != D )
        & ( A != C )
        & ( ( B @ ( A @ unordered_pair ) )
          = ( D @ ( C @ unordered_pair ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[41]) ).

thf(81,axiom,
    ! [A: $i,B: $i] :
      ~ ( B @ ( A @ ordered_pair ) @ empty ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(616,plain,
    ! [A: $i,B: $i] :
      ~ ( B @ ( A @ ordered_pair ) @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[81]) ).

thf(173,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( B @ ( C @ relation_dom_restriction ) @ relation_dom @ ( A @ in ) )
      <=> ( ( C @ relation_dom @ ( A @ in ) )
          & ( B @ ( A @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t86_relat_1) ).

thf(1175,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( ( ( C @ relation_dom @ ( A @ in ) )
            & ( B @ ( A @ in ) ) )
         => ( B @ ( C @ relation_dom_restriction ) @ relation_dom @ ( A @ in ) ) )
        & ( ( B @ ( C @ relation_dom_restriction ) @ relation_dom @ ( A @ in ) )
         => ( ( C @ relation_dom @ ( A @ in ) )
            & ( B @ ( A @ in ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[173]) ).

thf(104,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( C @ ( B @ set_intersection2 ) @ ( C @ ( A @ set_intersection2 ) @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t26_xboole_1) ).

thf(784,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( C @ ( B @ set_intersection2 ) @ ( C @ ( A @ set_intersection2 ) @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[104]) ).

thf(159,axiom,
    ! [A: $i,B: $i] : ( A @ ( A @ subset ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',reflexivity_r1_tarski) ).

thf(1117,plain,
    ! [A: $i] : ( A @ ( A @ subset ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[159]) ).

thf(32,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ ( A @ set_union2 ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',idempotence_k2_xboole_0) ).

thf(362,plain,
    ! [A: $i] :
      ( ( A @ ( A @ set_union2 ) )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[32]) ).

thf(72,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ singleton )
        = ( C @ ( B @ unordered_pair ) ) )
     => ( B = C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t9_zfmisc_1) ).

thf(567,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ singleton )
        = ( C @ ( B @ unordered_pair ) ) )
     => ( B = C ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[72]) ).

thf(120,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( C @ ( B @ ( A @ ordered_pair ) @ in ) )
       => ( ( C @ relation_rng @ ( B @ in ) )
          & ( C @ relation_dom @ ( A @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t20_relat_1) ).

thf(880,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( C @ relation )
     => ( ( C @ ( B @ ( A @ ordered_pair ) @ in ) )
       => ( ( C @ relation_rng @ ( B @ in ) )
          & ( C @ relation_dom @ ( A @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[120]) ).

thf(46,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ( B @ ( A @ disjoint ) )
          & ? [C: $i] :
              ( ( B @ ( C @ in ) )
              & ( A @ ( C @ in ) ) ) )
      & ~ ( ! [C: $i] :
              ~ ( ( B @ ( C @ in ) )
                & ( A @ ( C @ in ) ) )
          & ~ ( B @ ( A @ disjoint ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_0) ).

thf(434,plain,
    ! [A: $i,B: $i] :
      ( ~ ( ( B @ ( A @ disjoint ) )
          & ? [C: $i] :
              ( ( B @ ( C @ in ) )
              & ( A @ ( C @ in ) ) ) )
      & ~ ( ! [C: $i] :
              ~ ( ( B @ ( C @ in ) )
                & ( A @ ( C @ in ) ) )
          & ~ ( B @ ( A @ disjoint ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[46]) ).

thf(56,axiom,
    ! [A: $i] :
      ( ( A @ singleton )
     != empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(477,plain,
    ! [A: $i] :
      ( ( A @ singleton )
     != empty_set ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[56]) ).

thf(86,axiom,
    ! [A: $i,B: $i] :
      ( ( ( A = empty_set )
       => ( ( B
            = ( A @ set_meet ) )
        <=> ( B = empty_set ) ) )
      & ( ( A != empty_set )
       => ( ( B
            = ( A @ set_meet ) )
        <=> ! [C: $i] :
              ( ( B @ ( C @ in ) )
            <=> ! [D: $i] :
                  ( ( A @ ( D @ in ) )
                 => ( D @ ( C @ in ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_setfam_1) ).

thf(631,plain,
    ! [A: $i,B: $i] :
      ( ( ( A = empty_set )
       => ( ( ( B = empty_set )
           => ( B
              = ( A @ set_meet ) ) )
          & ( ( B
              = ( A @ set_meet ) )
           => ( B = empty_set ) ) ) )
      & ( ( A != empty_set )
       => ( ( ! [C: $i] :
                ( ( ! [D: $i] :
                      ( ( A @ ( D @ in ) )
                     => ( D @ ( C @ in ) ) )
                 => ( B @ ( C @ in ) ) )
                & ( ( B @ ( C @ in ) )
                 => ! [D: $i] :
                      ( ( A @ ( D @ in ) )
                     => ( D @ ( C @ in ) ) ) ) )
           => ( B
              = ( A @ set_meet ) ) )
          & ( ( B
              = ( A @ set_meet ) )
           => ! [C: $i] :
                ( ( ! [D: $i] :
                      ( ( A @ ( D @ in ) )
                     => ( D @ ( C @ in ) ) )
                 => ( B @ ( C @ in ) ) )
                & ( ( B @ ( C @ in ) )
                 => ! [D: $i] :
                      ( ( A @ ( D @ in ) )
                     => ( D @ ( C @ in ) ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[86]) ).

thf(98,axiom,
    ! [A: $i] :
      ( ( empty_set @ ( A @ subset ) )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(758,plain,
    ! [A: $i] :
      ( ( empty_set @ ( A @ subset ) )
     => ( A = empty_set ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[98]) ).

thf(66,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ! [C: $i] :
          ( ( B @ ( C @ in ) )
         => ( A @ ( C @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_subset_1) ).

thf(552,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ! [C: $i] :
          ( ( B @ ( C @ in ) )
         => ( A @ ( C @ in ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[66]) ).

thf(171,axiom,
    ! [A: $i] :
      ( ( A @ relation )
    <=> ! [B: $i] :
          ~ ( ! [C: $i,D: $i] :
                ( B
               != ( D @ ( C @ ordered_pair ) ) )
            & ( A @ ( B @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_relat_1) ).

thf(1162,plain,
    ! [A: $i] :
      ( ( ! [B: $i] :
            ~ ( ! [C: $i,D: $i] :
                  ( B
                 != ( D @ ( C @ ordered_pair ) ) )
              & ( A @ ( B @ in ) ) )
       => ( A @ relation ) )
      & ( ( A @ relation )
       => ! [B: $i] :
            ~ ( ! [C: $i,D: $i] :
                  ( B
                 != ( D @ ( C @ ordered_pair ) ) )
              & ( A @ ( B @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[171]) ).

thf(134,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( A @ relation_inverse @ relation ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_relat_1) ).

thf(943,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( A @ relation_inverse @ relation ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[134]) ).

thf(157,axiom,
    ! [A: $i] :
      ( ( ( A @ relation )
        & ~ ( A @ empty ) )
     => ~ ( A @ relation_dom @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc5_relat_1) ).

thf(1112,plain,
    ! [A: $i] :
      ( ( ( A @ relation )
        & ~ ( A @ empty ) )
     => ~ ( A @ relation_dom @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[157]) ).

thf(132,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ subset ) )
    <=> ! [C: $i] :
          ( ( A @ ( C @ in ) )
         => ( B @ ( C @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

thf(932,plain,
    ! [A: $i,B: $i] :
      ( ( ! [C: $i] :
            ( ( A @ ( C @ in ) )
           => ( B @ ( C @ in ) ) )
       => ( B @ ( A @ subset ) ) )
      & ( ( B @ ( A @ subset ) )
       => ! [C: $i] :
            ( ( A @ ( C @ in ) )
           => ( B @ ( C @ in ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[132]) ).

thf(151,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( B @ ( A @ set_union2 ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(1061,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( B @ ( A @ set_union2 ) )
        = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[151]) ).

thf(50,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( B @ ( A @ ordered_pair ) )
        = ( D @ ( C @ ordered_pair ) ) )
     => ( ( B = D )
        & ( A = C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_zfmisc_1) ).

thf(455,plain,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( B @ ( A @ ordered_pair ) )
        = ( D @ ( C @ ordered_pair ) ) )
     => ( ( B = D )
        & ( A = C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[50]) ).

thf(145,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ singleton @ ( A @ subset ) )
    <=> ( ( A
          = ( B @ singleton ) )
        | ( A = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l4_zfmisc_1) ).

thf(1015,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( A
            = ( B @ singleton ) )
          | ( A = empty_set ) )
       => ( B @ singleton @ ( A @ subset ) ) )
      & ( ( B @ singleton @ ( A @ subset ) )
       => ( ( A
            = ( B @ singleton ) )
          | ( A = empty_set ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[145]) ).

thf(78,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( A @ powerset @ ( C @ element ) )
     => ~ ( ( C @ ( B @ in ) )
          & ( C @ ( A @ subset_complement ) @ ( B @ in ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t54_subset_1) ).

thf(608,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( A @ powerset @ ( C @ element ) )
     => ~ ( ( C @ ( B @ in ) )
          & ( C @ ( A @ subset_complement ) @ ( B @ in ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[78]) ).

thf(15,axiom,
    ? [A: $i] :
      ~ ( A @ empty ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_xboole_0) ).

thf(226,plain,
    ? [A: $i] :
      ~ ( A @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[15]) ).

thf(61,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ ( B @ set_difference ) @ ( A @ set_union2 ) )
      = ( B @ ( A @ set_union2 ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_xboole_1) ).

thf(505,plain,
    ! [A: $i,B: $i] :
      ( ( A @ ( B @ set_difference ) @ ( A @ set_union2 ) )
      = ( B @ ( A @ set_union2 ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[61]) ).

thf(43,axiom,
    ! [A: $i] :
      ( ( A @ empty )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_boole) ).

thf(426,plain,
    ! [A: $i] :
      ( ( A @ empty )
     => ( A = empty_set ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[43]) ).

thf(34,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ singleton )
        = ( C @ ( B @ unordered_pair ) ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_zfmisc_1) ).

thf(374,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ singleton )
        = ( C @ ( B @ unordered_pair ) ) )
     => ( A = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[34]) ).

thf(108,axiom,
    ( ( ( empty_set @ relation_rng )
      = empty_set )
    & ( ( empty_set @ relation_dom )
      = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_relat_1) ).

thf(812,plain,
    ( ( ( empty_set @ relation_rng )
      = empty_set )
    & ( ( empty_set @ relation_dom )
      = empty_set ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[108]) ).

thf(97,axiom,
    ( ( empty_set @ relation )
    & ( empty_set @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc4_relat_1) ).

thf(754,plain,
    ( ( empty_set @ relation )
    & ( empty_set @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[97]) ).

thf(148,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( ( A @ relation_dom )
          = ( A @ relation_inverse @ relation_rng ) )
        & ( ( A @ relation_rng )
          = ( A @ relation_inverse @ relation_dom ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_relat_1) ).

thf(1049,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( ( A @ relation_dom )
          = ( A @ relation_inverse @ relation_rng ) )
        & ( ( A @ relation_rng )
          = ( A @ relation_inverse @ relation_dom ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[148]) ).

thf(122,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ! [C: $i] :
          ~ ( ~ ( B @ ( C @ in ) )
            & ~ ( B @ ( C @ are_equipotent ) )
            & ( B @ ( C @ subset ) ) )
      & ! [C: $i] :
          ~ ( ! [D: $i] :
                ~ ( ! [E: $i] :
                      ( ( C @ ( E @ subset ) )
                     => ( D @ ( E @ in ) ) )
                  & ( B @ ( D @ in ) ) )
            & ( B @ ( C @ in ) ) )
      & ! [C: $i,D: $i] :
          ( ( ( C @ ( D @ subset ) )
            & ( B @ ( C @ in ) ) )
         => ( B @ ( D @ in ) ) )
      & ( B @ ( A @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t9_tarski) ).

thf(887,plain,
    ! [A: $i] :
    ? [B: $i] :
      ( ! [C: $i] :
          ~ ( ~ ( B @ ( C @ in ) )
            & ~ ( B @ ( C @ are_equipotent ) )
            & ( B @ ( C @ subset ) ) )
      & ! [C: $i] :
          ~ ( ! [D: $i] :
                ~ ( ! [E: $i] :
                      ( ( C @ ( E @ subset ) )
                     => ( D @ ( E @ in ) ) )
                  & ( B @ ( D @ in ) ) )
            & ( B @ ( C @ in ) ) )
      & ! [C: $i,D: $i] :
          ( ( ( C @ ( D @ subset ) )
            & ( B @ ( C @ in ) ) )
         => ( B @ ( D @ in ) ) )
      & ( B @ ( A @ in ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[122]) ).

thf(139,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ singleton @ subset ) )
    <=> ( B @ ( A @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(954,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ ( A @ in ) )
       => ( B @ ( A @ singleton @ subset ) ) )
      & ( ( B @ ( A @ singleton @ subset ) )
       => ( B @ ( A @ in ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[139]) ).

thf(144,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ! [C: $i] :
          ( ( C @ relation )
         => ( ( C
              = ( B @ ( A @ relation_rng_restriction ) ) )
          <=> ! [D: $i,E: $i] :
                ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
              <=> ( ( B @ ( E @ ( D @ ordered_pair ) @ in ) )
                  & ( A @ ( E @ in ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d12_relat_1) ).

thf(993,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ! [C: $i] :
          ( ( C @ relation )
         => ( ( ! [D: $i,E: $i] :
                  ( ( ( ( B @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( A @ ( E @ in ) ) )
                   => ( C @ ( E @ ( D @ ordered_pair ) @ in ) ) )
                  & ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
                   => ( ( B @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( A @ ( E @ in ) ) ) ) )
             => ( C
                = ( B @ ( A @ relation_rng_restriction ) ) ) )
            & ( ( C
                = ( B @ ( A @ relation_rng_restriction ) ) )
             => ! [D: $i,E: $i] :
                  ( ( ( ( B @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( A @ ( E @ in ) ) )
                   => ( C @ ( E @ ( D @ ordered_pair ) @ in ) ) )
                  & ( ( C @ ( E @ ( D @ ordered_pair ) @ in ) )
                   => ( ( B @ ( E @ ( D @ ordered_pair ) @ in ) )
                      & ( A @ ( E @ in ) ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[144]) ).

thf(91,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ ( A @ set_difference ) )
        = empty_set )
    <=> ( B @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_xboole_1) ).

thf(705,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ ( A @ subset ) )
       => ( ( B @ ( A @ set_difference ) )
          = empty_set ) )
      & ( ( ( B @ ( A @ set_difference ) )
          = empty_set )
       => ( B @ ( A @ subset ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[91]) ).

thf(26,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( A @ union ) )
    <=> ! [C: $i] :
          ( ( B @ ( C @ in ) )
        <=> ? [D: $i] :
              ( ( A @ ( D @ in ) )
              & ( D @ ( C @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_tarski) ).

thf(282,plain,
    ! [A: $i,B: $i] :
      ( ( ! [C: $i] :
            ( ( ? [D: $i] :
                  ( ( A @ ( D @ in ) )
                  & ( D @ ( C @ in ) ) )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ? [D: $i] :
                  ( ( A @ ( D @ in ) )
                  & ( D @ ( C @ in ) ) ) ) )
       => ( B
          = ( A @ union ) ) )
      & ( ( B
          = ( A @ union ) )
       => ! [C: $i] :
            ( ( ? [D: $i] :
                  ( ( A @ ( D @ in ) )
                  & ( D @ ( C @ in ) ) )
             => ( B @ ( C @ in ) ) )
            & ( ( B @ ( C @ in ) )
             => ? [D: $i] :
                  ( ( A @ ( D @ in ) )
                  & ( D @ ( C @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[26]) ).

thf(168,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( B @ union @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(1156,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( B @ union @ ( A @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[168]) ).

thf(8,axiom,
    ! [A: $i,B: $i,C: $i] :
      ~ ( ( C @ empty )
        & ( C @ powerset @ ( B @ element ) )
        & ( B @ ( A @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t5_subset) ).

thf(199,plain,
    ! [A: $i,B: $i,C: $i] :
      ~ ( ( C @ empty )
        & ( C @ powerset @ ( B @ element ) )
        & ( B @ ( A @ in ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(106,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( A = B )
          <=> ! [C: $i,D: $i] :
                ( ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
              <=> ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_relat_1) ).

thf(791,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ! [B: $i] :
          ( ( B @ relation )
         => ( ( ! [C: $i,D: $i] :
                  ( ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
                   => ( A @ ( D @ ( C @ ordered_pair ) @ in ) ) )
                  & ( ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
                   => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) ) )
             => ( A = B ) )
            & ( ( A = B )
             => ! [C: $i,D: $i] :
                  ( ( ( B @ ( D @ ( C @ ordered_pair ) @ in ) )
                   => ( A @ ( D @ ( C @ ordered_pair ) @ in ) ) )
                  & ( ( A @ ( D @ ( C @ ordered_pair ) @ in ) )
                   => ( B @ ( D @ ( C @ ordered_pair ) @ in ) ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[106]) ).

thf(47,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ unordered_pair ) )
      = ( A @ ( B @ unordered_pair ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(441,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ unordered_pair ) )
      = ( A @ ( B @ unordered_pair ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[47]) ).

thf(112,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ! [C: $i] :
          ~ ( ~ ( B @ ( C @ in ) )
            & ~ ( B @ ( C @ are_equipotent ) )
            & ( B @ ( C @ subset ) ) )
      & ! [C: $i] :
          ( ( B @ ( C @ in ) )
         => ( B @ ( C @ powerset @ in ) ) )
      & ! [C: $i,D: $i] :
          ( ( ( C @ ( D @ subset ) )
            & ( B @ ( C @ in ) ) )
         => ( B @ ( D @ in ) ) )
      & ( B @ ( A @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t136_zfmisc_1) ).

thf(840,plain,
    ! [A: $i] :
    ? [B: $i] :
      ( ! [C: $i] :
          ~ ( ~ ( B @ ( C @ in ) )
            & ~ ( B @ ( C @ are_equipotent ) )
            & ( B @ ( C @ subset ) ) )
      & ! [C: $i] :
          ( ( B @ ( C @ in ) )
         => ( B @ ( C @ powerset @ in ) ) )
      & ! [C: $i,D: $i] :
          ( ( ( C @ ( D @ subset ) )
            & ( B @ ( C @ in ) ) )
         => ( B @ ( D @ in ) ) )
      & ( B @ ( A @ in ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[112]) ).

thf(75,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( B @ ( A @ set_difference ) ) )
    <=> ! [D: $i] :
          ( ( C @ ( D @ in ) )
        <=> ( ~ ( B @ ( D @ in ) )
            & ( A @ ( D @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(576,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ! [D: $i] :
            ( ( ( ~ ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ~ ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) )
       => ( C
          = ( B @ ( A @ set_difference ) ) ) )
      & ( ( C
          = ( B @ ( A @ set_difference ) ) )
       => ! [D: $i] :
            ( ( ( ~ ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ~ ( B @ ( D @ in ) )
                & ( A @ ( D @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[75]) ).

thf(107,axiom,
    ? [A: $i] :
      ( ( A @ relation )
      & ( A @ empty ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_relat_1) ).

thf(808,plain,
    ? [A: $i] :
      ( ( A @ relation )
      & ( A @ empty ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[107]) ).

thf(80,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( A @ ( C @ in ) )
         => ( B @ ( C @ in ) ) )
     => ( B @ powerset @ ( A @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l71_subset_1) ).

thf(612,plain,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( A @ ( C @ in ) )
         => ( B @ ( C @ in ) ) )
     => ( B @ powerset @ ( A @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[80]) ).

thf(143,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( D @ ( C @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( D @ ( B @ cartesian_product2 ) @ ( C @ ( A @ cartesian_product2 ) @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t119_zfmisc_1) ).

thf(991,plain,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( D @ ( C @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( D @ ( B @ cartesian_product2 ) @ ( C @ ( A @ cartesian_product2 ) @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[143]) ).

thf(51,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( A @ powerset @ ( B @ ( A @ meet_of_subsets ) @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k6_setfam_1) ).

thf(465,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( A @ powerset @ ( B @ ( A @ meet_of_subsets ) @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[51]) ).

thf(174,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ empty ) )
     => ( ( A @ ( B @ relation_composition ) @ relation )
        & ( A @ ( B @ relation_composition ) @ empty ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc10_relat_1) ).

thf(1180,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ relation )
        & ( A @ empty ) )
     => ( ( A @ ( B @ relation_composition ) @ relation )
        & ( A @ ( B @ relation_composition ) @ empty ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[174]) ).

thf(68,axiom,
    ! [A: $i,B: $i] :
      ~ ( A @ ( A @ proper_subset ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',irreflexivity_r2_xboole_0) ).

thf(556,plain,
    ! [A: $i] :
      ~ ( A @ ( A @ proper_subset ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[68]) ).

thf(60,axiom,
    ! [A: $i,B: $i] :
      ( ( ( A @ empty )
       => ( ( A @ ( B @ element ) )
        <=> ( B @ empty ) ) )
      & ( ~ ( A @ empty )
       => ( ( A @ ( B @ element ) )
        <=> ( A @ ( B @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_subset_1) ).

thf(495,plain,
    ! [A: $i,B: $i] :
      ( ( ( A @ empty )
       => ( ( ( B @ empty )
           => ( A @ ( B @ element ) ) )
          & ( ( A @ ( B @ element ) )
           => ( B @ empty ) ) ) )
      & ( ~ ( A @ empty )
       => ( ( ( A @ ( B @ in ) )
           => ( A @ ( B @ element ) ) )
          & ( ( A @ ( B @ element ) )
           => ( A @ ( B @ in ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[60]) ).

thf(177,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( A @ ( B @ ( A @ relation_rng_restriction ) @ relation_rng @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t116_relat_1) ).

thf(1189,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( A @ ( B @ ( A @ relation_rng_restriction ) @ relation_rng @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[177]) ).

thf(101,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ! [C: $i] :
          ( ( A @ powerset @ ( C @ element ) )
         => ( ( C @ ( B @ disjoint ) )
          <=> ( C @ ( A @ subset_complement ) @ ( B @ subset ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t43_subset_1) ).

thf(771,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ! [C: $i] :
          ( ( A @ powerset @ ( C @ element ) )
         => ( ( ( C @ ( A @ subset_complement ) @ ( B @ subset ) )
             => ( C @ ( B @ disjoint ) ) )
            & ( ( C @ ( B @ disjoint ) )
             => ( C @ ( A @ subset_complement ) @ ( B @ subset ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[101]) ).

thf(35,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( B @ ( A @ set_union2 ) ) )
    <=> ! [D: $i] :
          ( ( C @ ( D @ in ) )
        <=> ( ( B @ ( D @ in ) )
            | ( A @ ( D @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(378,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ! [D: $i] :
            ( ( ( ( B @ ( D @ in ) )
                | ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                | ( A @ ( D @ in ) ) ) ) )
       => ( C
          = ( B @ ( A @ set_union2 ) ) ) )
      & ( ( C
          = ( B @ ( A @ set_union2 ) ) )
       => ! [D: $i] :
            ( ( ( ( B @ ( D @ in ) )
                | ( A @ ( D @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ( ( B @ ( D @ in ) )
                | ( A @ ( D @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[35]) ).

thf(19,axiom,
    ! [A: $i] :
      ( ~ ( A @ empty )
     => ? [B: $i] :
          ( ~ ( B @ empty )
          & ( A @ powerset @ ( B @ element ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_subset_1) ).

thf(235,plain,
    ! [A: $i] :
      ( ~ ( A @ empty )
     => ? [B: $i] :
          ( ~ ( B @ empty )
          & ( A @ powerset @ ( B @ element ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[19]) ).

thf(11,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ disjoint ) )
    <=> ( ( B @ ( A @ set_intersection2 ) )
        = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d7_xboole_0) ).

thf(207,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( B @ ( A @ set_intersection2 ) )
          = empty_set )
       => ( B @ ( A @ disjoint ) ) )
      & ( ( B @ ( A @ disjoint ) )
       => ( ( B @ ( A @ set_intersection2 ) )
          = empty_set ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).

thf(131,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( B @ ( A @ set_intersection2 ) )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(929,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ subset ) )
     => ( ( B @ ( A @ set_intersection2 ) )
        = A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[131]) ).

thf(100,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ ( A @ set_difference ) )
        = empty_set )
    <=> ( B @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l32_xboole_1) ).

thf(763,plain,
    ! [A: $i,B: $i] :
      ( ( ( B @ ( A @ subset ) )
       => ( ( B @ ( A @ set_difference ) )
          = empty_set ) )
      & ( ( ( B @ ( A @ set_difference ) )
          = empty_set )
       => ( B @ ( A @ subset ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[100]) ).

thf(111,axiom,
    ! [A: $i] :
      ( ( ( A @ identity_relation @ relation_rng )
        = A )
      & ( ( A @ identity_relation @ relation_dom )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t71_relat_1) ).

thf(832,plain,
    ! [A: $i] :
      ( ( ( A @ identity_relation @ relation_rng )
        = A )
      & ( ( A @ identity_relation @ relation_dom )
        = A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[111]) ).

thf(65,axiom,
    ! [A: $i] :
      ( ( A @ ( A @ unordered_pair ) )
      = ( A @ singleton ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t69_enumset1) ).

thf(549,plain,
    ! [A: $i] :
      ( ( A @ ( A @ unordered_pair ) )
      = ( A @ singleton ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[65]) ).

thf(49,axiom,
    ! [A: $i,B: $i] :
      ( ( ( B @ singleton @ ( A @ set_difference ) )
        = A )
    <=> ~ ( A @ ( B @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t65_zfmisc_1) ).

thf(447,plain,
    ! [A: $i,B: $i] :
      ( ( ~ ( A @ ( B @ in ) )
       => ( ( B @ singleton @ ( A @ set_difference ) )
          = A ) )
      & ( ( ( B @ singleton @ ( A @ set_difference ) )
          = A )
       => ~ ( A @ ( B @ in ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[49]) ).

thf(45,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ powerset @ ( B @ element ) )
        & ( B @ ( A @ in ) ) )
     => ( C @ ( A @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_subset) ).

thf(432,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ powerset @ ( B @ element ) )
        & ( B @ ( A @ in ) ) )
     => ( C @ ( A @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[45]) ).

thf(38,axiom,
    ! [A: $i,B: $i] :
      ~ ( B @ ( A @ unordered_pair ) @ empty ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_subset_1) ).

thf(410,plain,
    ! [A: $i,B: $i] :
      ~ ( B @ ( A @ unordered_pair ) @ empty ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[38]) ).

thf(137,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( A @ relation_rng @ ( A @ relation_dom @ cartesian_product2 ) @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t21_relat_1) ).

thf(950,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( A @ relation_rng @ ( A @ relation_dom @ cartesian_product2 ) @ ( A @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[137]) ).

thf(109,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( A @ ( B @ subset ) )
        & ( B @ ( A @ subset ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(818,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( A @ ( B @ subset ) )
          & ( B @ ( A @ subset ) ) )
       => ( A = B ) )
      & ( ( A = B )
       => ( ( A @ ( B @ subset ) )
          & ( B @ ( A @ subset ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[109]) ).

thf(36,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_intersection2 ) )
      = ( A @ ( B @ set_intersection2 ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k3_xboole_0) ).

thf(405,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ set_intersection2 ) )
      = ( A @ ( B @ set_intersection2 ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[36]) ).

thf(164,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ ( B @ disjoint ) )
        & ( B @ ( A @ subset ) ) )
     => ( C @ ( A @ disjoint ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t63_xboole_1) ).

thf(1148,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( C @ ( B @ disjoint ) )
        & ( B @ ( A @ subset ) ) )
     => ( C @ ( A @ disjoint ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[164]) ).

thf(76,axiom,
    ! [A: $i] :
    ? [B: $i] : ( A @ ( B @ element ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_m1_subset_1) ).

thf(603,plain,
    ! [A: $i] :
    ? [B: $i] : ( A @ ( B @ element ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[76]) ).

thf(114,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( ( A @ relation_dom )
          = empty_set )
      <=> ( ( A @ relation_rng )
          = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t65_relat_1) ).

thf(854,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( ( ( A @ relation_rng )
            = empty_set )
         => ( ( A @ relation_dom )
            = empty_set ) )
        & ( ( ( A @ relation_dom )
            = empty_set )
         => ( ( A @ relation_rng )
            = empty_set ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[114]) ).

thf(5,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B != empty_set )
       => ( ( B @ ( A @ union_of_subsets ) @ ( A @ cast_to_subset @ ( A @ subset_difference ) ) )
          = ( B @ ( A @ complements_of_subsets ) @ ( A @ meet_of_subsets ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t47_setfam_1) ).

thf(190,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ powerset @ ( B @ element ) )
     => ( ( B != empty_set )
       => ( ( B @ ( A @ union_of_subsets ) @ ( A @ cast_to_subset @ ( A @ subset_difference ) ) )
          = ( B @ ( A @ complements_of_subsets ) @ ( A @ meet_of_subsets ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(71,axiom,
    ! [A: $i] :
      ( ( A @ ( empty_set @ set_difference ) )
      = empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_boole) ).

thf(564,plain,
    ! [A: $i] :
      ( ( A @ ( empty_set @ set_difference ) )
      = empty_set ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[71]) ).

thf(87,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( B @ ( A @ cartesian_product2 ) ) )
    <=> ! [D: $i] :
          ( ( C @ ( D @ in ) )
        <=> ? [E: $i,F: $i] :
              ( ( D
                = ( F @ ( E @ ordered_pair ) ) )
              & ( B @ ( F @ in ) )
              & ( A @ ( E @ in ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_zfmisc_1) ).

thf(664,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ! [D: $i] :
            ( ( ? [E: $i,F: $i] :
                  ( ( D
                    = ( F @ ( E @ ordered_pair ) ) )
                  & ( B @ ( F @ in ) )
                  & ( A @ ( E @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ? [E: $i,F: $i] :
                  ( ( D
                    = ( F @ ( E @ ordered_pair ) ) )
                  & ( B @ ( F @ in ) )
                  & ( A @ ( E @ in ) ) ) ) )
       => ( C
          = ( B @ ( A @ cartesian_product2 ) ) ) )
      & ( ( C
          = ( B @ ( A @ cartesian_product2 ) ) )
       => ! [D: $i] :
            ( ( ? [E: $i,F: $i] :
                  ( ( D
                    = ( F @ ( E @ ordered_pair ) ) )
                  & ( B @ ( F @ in ) )
                  & ( A @ ( E @ in ) ) )
             => ( C @ ( D @ in ) ) )
            & ( ( C @ ( D @ in ) )
             => ? [E: $i,F: $i] :
                  ( ( D
                    = ( F @ ( E @ ordered_pair ) ) )
                  & ( B @ ( F @ in ) )
                  & ( A @ ( E @ in ) ) ) ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[87]) ).

thf(140,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( B @ ( C @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( B @ ( C @ ( A @ set_union2 ) @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_xboole_1) ).

thf(960,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( B @ ( C @ subset ) )
        & ( B @ ( A @ subset ) ) )
     => ( B @ ( C @ ( A @ set_union2 ) @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[140]) ).

thf(20,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ powerset @ ( C @ element ) )
        & ( A @ powerset @ ( B @ element ) ) )
     => ( ( C @ ( B @ ( A @ subset_difference ) ) )
        = ( C @ ( B @ set_difference ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_k6_subset_1) ).

thf(239,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( A @ powerset @ ( C @ element ) )
        & ( A @ powerset @ ( B @ element ) ) )
     => ( ( C @ ( B @ ( A @ subset_difference ) ) )
        = ( C @ ( B @ set_difference ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[20]) ).

thf(21,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( A @ ( C @ in ) )
        <=> ( B @ ( C @ in ) ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_tarski) ).

thf(242,plain,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( ( B @ ( C @ in ) )
           => ( A @ ( C @ in ) ) )
          & ( ( A @ ( C @ in ) )
           => ( B @ ( C @ in ) ) ) )
     => ( A = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[21]) ).

thf(172,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( A @ relation_field )
        = ( A @ relation_rng @ ( A @ relation_dom @ set_union2 ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d6_relat_1) ).

thf(1172,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( A @ relation_field )
        = ( A @ relation_rng @ ( A @ relation_dom @ set_union2 ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[172]) ).

thf(55,axiom,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ subset_complement ) @ ( A @ subset_complement ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k3_subset_1) ).

thf(474,plain,
    ! [A: $i,B: $i] :
      ( ( A @ powerset @ ( B @ element ) )
     => ( ( B @ ( A @ subset_complement ) @ ( A @ subset_complement ) )
        = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[55]) ).

thf(30,axiom,
    ! [A: $i] :
      ( ( A @ powerset @ union )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_zfmisc_1) ).

thf(332,plain,
    ! [A: $i] :
      ( ( A @ powerset @ union )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[30]) ).

thf(166,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( B @ union @ ( A @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t92_zfmisc_1) ).

thf(1152,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( B @ union @ ( A @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[166]) ).

thf(115,axiom,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( ( ( A @ relation_rng )
            = empty_set )
          | ( ( A @ relation_dom )
            = empty_set ) )
       => ( A = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t64_relat_1) ).

thf(860,plain,
    ! [A: $i] :
      ( ( A @ relation )
     => ( ( ( ( A @ relation_rng )
            = empty_set )
          | ( ( A @ relation_dom )
            = empty_set ) )
       => ( A = empty_set ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[115]) ).

thf(118,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ subset ) )
     => ( B
        = ( A @ ( B @ set_difference ) @ ( A @ set_union2 ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_xboole_1) ).

thf(871,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ subset ) )
     => ( B
        = ( A @ ( B @ set_difference ) @ ( A @ set_union2 ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[118]) ).

thf(175,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( ( A @ ( B @ relation_dom_restriction ) @ relation_dom )
        = ( A @ ( B @ relation_dom @ set_intersection2 ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t90_relat_1) ).

thf(1184,plain,
    ! [A: $i,B: $i] :
      ( ( B @ relation )
     => ( ( A @ ( B @ relation_dom_restriction ) @ relation_dom )
        = ( A @ ( B @ relation_dom @ set_intersection2 ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[175]) ).

thf(27,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ~ ( A @ ( B @ in ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(309,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ~ ( A @ ( B @ in ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[27]) ).

thf(12,axiom,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( B @ ( A @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_subset) ).

thf(215,plain,
    ! [A: $i,B: $i] :
      ( ( B @ ( A @ in ) )
     => ( B @ ( A @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[12]) ).

thf(102,axiom,
    ! [A: $i] :
      ( ( A @ empty )
     => ( ( A @ relation_rng @ relation )
        & ( A @ relation_rng @ empty ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc8_relat_1) ).

thf(775,plain,
    ! [A: $i] :
      ( ( A @ empty )
     => ( ( A @ relation_rng @ relation )
        & ( A @ relation_rng @ empty ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[102]) ).

thf(59,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( B @ empty )
      & ( A @ powerset @ ( B @ element ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_subset_1) ).

thf(491,plain,
    ! [A: $i] :
    ? [B: $i] :
      ( ( B @ empty )
      & ( A @ powerset @ ( B @ element ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[59]) ).

thf(153,axiom,
    ! [A: $i,B: $i] : ( A @ ( B @ ( A @ set_intersection2 ) @ subset ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(1069,plain,
    ! [A: $i,B: $i] : ( A @ ( B @ ( A @ set_intersection2 ) @ subset ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[153]) ).

thf(17,axiom,
    empty_set @ empty,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(232,plain,
    empty_set @ empty,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).

thf(53,axiom,
    ! [A: $i] : ( A @ powerset @ ( A @ cast_to_subset @ element ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_subset_1) ).

thf(469,plain,
    ! [A: $i] : ( A @ powerset @ ( A @ cast_to_subset @ element ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[53]) ).

thf(133,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( C @ ( B @ set_difference ) @ ( C @ ( A @ set_difference ) @ subset ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_xboole_1) ).

thf(940,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( B @ ( A @ subset ) )
     => ( C @ ( B @ set_difference ) @ ( C @ ( A @ set_difference ) @ subset ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[133]) ).

thf(1318,plain,
    $false,
    inference(e,[status(thm)],[253,699,365,962,481,909,628,408,1158,741,202,217,276,913,945,1095,898,1055,570,184,719,619,1191,542,702,751,559,969,416,866,1119,1201,849,1074,233,925,761,220,1057,952,561,429,229,197,625,329,830,916,467,697,874,948,1121,1064,869,610,471,884,1160,1028,554,193,489,622,1114,911,779,605,515,1150,205,508,311,921,1071,1187,1026,1146,745,279,573,180,444,1154,423,1125,413,787,713,335,919,187,274,419,616,1175,784,1117,362,567,880,434,477,631,758,552,1162,943,1112,932,1061,455,1015,608,226,505,426,374,812,754,1049,887,954,993,705,282,1156,199,791,441,840,576,808,612,991,465,1180,556,495,1189,771,378,235,207,929,763,832,549,447,432,410,950,818,405,1148,603,854,190,564,664,960,239,242,1172,474,332,1152,860,871,1184,309,215,775,491,1069,232,469,940]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU200+2 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.08  % Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.14/5.41  % Computer : n014.cluster.edu
% 0.14/5.41  % Model    : x86_64 x86_64
% 0.14/5.41  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/5.41  % Memory   : 8046.5625MB
% 0.14/5.41  % OS       : Linux 6.8.0-71-generic
% 0.14/5.41  % CPULimit : 300
% 0.14/5.41  % WCLimit  : 300
% 0.14/5.41  % DateTime : Sat Sep 26 08:48:51 UTC 2026
% 0.14/5.42  % CPUTime  : 
% 0.14/5.42  Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.19/5.97  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.46/6.25  % [INFO] 	 Parsing done (280ms). 
% 1.46/6.27  % [INFO] 	 Running in sequential loop mode. 
% 2.36/6.67  % [INFO] 	 eprover registered as external prover. 
% 2.36/6.67  % [INFO] 	 Scanning for conjecture ... 
% 2.71/6.80  % [INFO] 	 Found a conjecture (or negated_conjecture) and 192 axioms. Running axiom selection ... 
% 2.91/6.91  % [INFO] 	 Axiom selection finished. Selected 177 axioms (removed 15 axioms). 
% 3.28/7.07  % [INFO] 	 Problem is first-order (TPTP FOF). 
% 3.28/7.09  % [INFO] 	 Type checking passed. 
% 3.28/7.10  % [CONFIG] 	 Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>.  Searching for refutation ... 
% 10.12/8.81  % External prover 'e' found a proof!
% 10.12/8.81  % [INFO] 	 Killing All external provers ... 
% 10.12/8.81  % Time passed: 3269ms (effective reasoning time: 2529ms)
% 10.12/8.81  % Solved by strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>
% 10.12/8.81  % Axioms used in derivation (177): fc4_subset_1, involutiveness_k7_setfam_1, t43_subset_1, fc1_zfmisc_1, d1_tarski, t30_relat_1, t19_xboole_1, t99_relat_1, t17_xboole_1, t90_relat_1, d5_relat_1, idempotence_k3_xboole_0, t1_boole, t3_xboole_1, fc1_xboole_0, dt_k2_subset_1, d5_tarski, fc4_relat_1, d12_relat_1, t44_relat_1, t1_subset, t117_relat_1, t2_boole, t47_relat_1, fc9_relat_1, l3_subset_1, t99_zfmisc_1, t47_setfam_1, t56_relat_1, t37_xboole_1, cc1_relat_1, redefinition_k6_setfam_1, commutativity_k3_xboole_0, d2_tarski, d4_subset_1, involutiveness_k3_subset_1, fc2_xboole_0, d1_xboole_0, t64_relat_1, l50_zfmisc_1, t118_zfmisc_1, t46_zfmisc_1, t6_boole, rc2_subset_1, dt_k6_subset_1, d1_relat_1, t1_xboole_1, t116_relat_1, commutativity_k2_xboole_0, fc3_subset_1, t5_subset, d4_relat_1, t4_xboole_0, l25_zfmisc_1, t1_zfmisc_1, fc2_subset_1, d8_xboole_0, t2_tarski, t33_xboole_1, l32_xboole_1, t8_zfmisc_1, t4_boole, dt_k4_relat_1, t4_subset, fc3_xboole_0, d2_xboole_0, d4_tarski, t9_zfmisc_1, redefinition_k5_setfam_1, involutiveness_k4_relat_1, t7_boole, d10_relat_1, d2_subset_1, t48_xboole_1, fc1_subset_1, t33_zfmisc_1, d11_relat_1, t74_relat_1, fc10_relat_1, rc1_subset_1, t83_xboole_1, t45_relat_1, l28_zfmisc_1, d7_xboole_0, fc5_relat_1, t46_setfam_1, l4_zfmisc_1, t3_subset, t115_relat_1, d2_zfmisc_1, existence_m1_subset_1, d7_relat_1, antisymmetry_r2_xboole_0, dt_k6_setfam_1, l3_zfmisc_1, commutativity_k2_tarski, t106_zfmisc_1, d8_relat_1, l71_subset_1, d5_subset_1, t92_zfmisc_1, dt_k7_relat_1, l2_zfmisc_1, t94_relat_1, t48_setfam_1, d1_zfmisc_1, t69_enumset1, rc2_relat_1, t38_zfmisc_1, l55_zfmisc_1, dt_k8_relat_1, d8_setfam_1, t26_xboole_1, t63_xboole_1, t8_xboole_1, t37_relat_1, t28_xboole_1, d3_tarski, t39_zfmisc_1, t119_zfmisc_1, rc1_relat_1, t60_relat_1, dt_k5_relat_1, reflexivity_r1_tarski, t6_zfmisc_1, dt_k6_relat_1, t2_xboole_1, fc6_relat_1, t46_relat_1, d4_xboole_0, dt_k5_setfam_1, t36_xboole_1, t20_relat_1, t54_subset_1, dt_k7_setfam_1, t136_zfmisc_1, fc1_relat_1, d6_relat_1, l23_zfmisc_1, t8_boole, rc1_xboole_0, t12_xboole_1, d3_relat_1, fc7_relat_1, t86_relat_1, fc8_relat_1, t10_zfmisc_1, t2_subset, t37_zfmisc_1, fc2_relat_1, t65_relat_1, t21_relat_1, d1_setfam_1, symmetry_r1_xboole_0, idempotence_k2_xboole_0, t9_tarski, t50_subset_1, d10_xboole_0, t7_xboole_1, t60_xboole_1, t3_xboole_0, t3_boole, redefinition_k6_subset_1, t25_relat_1, rc2_xboole_0, t45_xboole_1, t40_xboole_1, irreflexivity_r2_xboole_0, t65_zfmisc_1, d3_xboole_0, d2_relat_1, t39_xboole_1, t71_relat_1, antisymmetry_r2_hidden, t88_relat_1, dt_k3_subset_1, l1_zfmisc_1
% 10.12/8.81  % No. of inferences in proof: 358
% 10.12/8.81  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 3269 ms resp. 2529 ms w/o parsing
% 10.64/8.92  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 10.64/8.93  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------