TSTP Solution File: SEU163+2 by Vampire---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : SEU163+2 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s

% Computer : n016.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Aug 31 17:56:25 EDT 2023

% Result   : Theorem 0.22s 0.44s
% Output   : Refutation 0.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :   92
% Syntax   : Number of formulae    :  253 (  88 unt;   0 def)
%            Number of atoms       :  576 ( 146 equ)
%            Maximal formula atoms :   14 (   2 avg)
%            Number of connectives :  577 ( 254   ~; 199   |;  50   &)
%                                         (  57 <=>;  17  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :   57 (  55 usr;  51 prp; 0-2 aty)
%            Number of functors    :   16 (  16 usr;   5 con; 0-3 aty)
%            Number of variables   :  320 (; 302   !;  18   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f660,plain,
    $false,
    inference(avatar_sat_refutation,[],[f412,f417,f422,f427,f432,f436,f440,f444,f448,f452,f456,f461,f465,f469,f473,f477,f481,f485,f489,f493,f497,f501,f505,f509,f513,f517,f530,f536,f540,f544,f554,f563,f567,f571,f576,f580,f584,f588,f599,f603,f607,f620,f624,f628,f632,f636,f640,f646,f650,f654,f659]) ).

fof(f659,plain,
    ( ~ spl23_1
    | spl23_2
    | ~ spl23_45 ),
    inference(avatar_contradiction_clause,[],[f658]) ).

fof(f658,plain,
    ( $false
    | ~ spl23_1
    | spl23_2
    | ~ spl23_45 ),
    inference(subsumption_resolution,[],[f656,f411]) ).

fof(f411,plain,
    ( in(sK0,sK1)
    | ~ spl23_1 ),
    inference(avatar_component_clause,[],[f409]) ).

fof(f409,plain,
    ( spl23_1
  <=> in(sK0,sK1) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_1])]) ).

fof(f656,plain,
    ( ~ in(sK0,sK1)
    | spl23_2
    | ~ spl23_45 ),
    inference(resolution,[],[f631,f416]) ).

fof(f416,plain,
    ( ~ subset(sK0,union(sK1))
    | spl23_2 ),
    inference(avatar_component_clause,[],[f414]) ).

fof(f414,plain,
    ( spl23_2
  <=> subset(sK0,union(sK1)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_2])]) ).

fof(f631,plain,
    ( ! [X0,X1] :
        ( subset(X0,union(X1))
        | ~ in(X0,X1) )
    | ~ spl23_45 ),
    inference(avatar_component_clause,[],[f630]) ).

fof(f630,plain,
    ( spl23_45
  <=> ! [X0,X1] :
        ( subset(X0,union(X1))
        | ~ in(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_45])]) ).

fof(f654,plain,
    spl23_50,
    inference(avatar_split_clause,[],[f267,f652]) ).

fof(f652,plain,
    ( spl23_50
  <=> ! [X0,X1] :
        ( ~ in(X0,X1)
        | ~ disjoint(singleton(X0),X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_50])]) ).

fof(f267,plain,
    ! [X0,X1] :
      ( ~ in(X0,X1)
      | ~ disjoint(singleton(X0),X1) ),
    inference(cnf_transformation,[],[f115]) ).

fof(f115,plain,
    ! [X0,X1] :
      ( ~ in(X0,X1)
      | ~ disjoint(singleton(X0),X1) ),
    inference(ennf_transformation,[],[f39]) ).

fof(f39,axiom,
    ! [X0,X1] :
      ~ ( in(X0,X1)
        & disjoint(singleton(X0),X1) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',l25_zfmisc_1) ).

fof(f650,plain,
    spl23_49,
    inference(avatar_split_clause,[],[f257,f648]) ).

fof(f648,plain,
    ( spl23_49
  <=> ! [X0,X1] :
        ( subset(singleton(X0),X1)
        | ~ in(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_49])]) ).

fof(f257,plain,
    ! [X0,X1] :
      ( subset(singleton(X0),X1)
      | ~ in(X0,X1) ),
    inference(cnf_transformation,[],[f155]) ).

fof(f155,plain,
    ! [X0,X1] :
      ( ( subset(singleton(X0),X1)
        | ~ in(X0,X1) )
      & ( in(X0,X1)
        | ~ subset(singleton(X0),X1) ) ),
    inference(nnf_transformation,[],[f67]) ).

fof(f67,axiom,
    ! [X0,X1] :
      ( subset(singleton(X0),X1)
    <=> in(X0,X1) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t37_zfmisc_1) ).

fof(f646,plain,
    spl23_48,
    inference(avatar_split_clause,[],[f256,f644]) ).

fof(f644,plain,
    ( spl23_48
  <=> ! [X0,X1] :
        ( in(X0,X1)
        | ~ subset(singleton(X0),X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_48])]) ).

fof(f256,plain,
    ! [X0,X1] :
      ( in(X0,X1)
      | ~ subset(singleton(X0),X1) ),
    inference(cnf_transformation,[],[f155]) ).

fof(f640,plain,
    ( spl23_47
    | ~ spl23_26
    | ~ spl23_41 ),
    inference(avatar_split_clause,[],[f615,f605,f515,f638]) ).

fof(f638,plain,
    ( spl23_47
  <=> ! [X4,X3] : ~ in(unordered_pair(X3,X4),X3) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_47])]) ).

fof(f515,plain,
    ( spl23_26
  <=> ! [X4,X1] : in(X4,unordered_pair(X4,X1)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_26])]) ).

fof(f605,plain,
    ( spl23_41
  <=> ! [X0,X1] :
        ( ~ in(X1,X0)
        | ~ in(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_41])]) ).

fof(f615,plain,
    ( ! [X3,X4] : ~ in(unordered_pair(X3,X4),X3)
    | ~ spl23_26
    | ~ spl23_41 ),
    inference(resolution,[],[f606,f516]) ).

fof(f516,plain,
    ( ! [X1,X4] : in(X4,unordered_pair(X4,X1))
    | ~ spl23_26 ),
    inference(avatar_component_clause,[],[f515]) ).

fof(f606,plain,
    ( ! [X0,X1] :
        ( ~ in(X1,X0)
        | ~ in(X0,X1) )
    | ~ spl23_41 ),
    inference(avatar_component_clause,[],[f605]) ).

fof(f636,plain,
    ( spl23_46
    | ~ spl23_25
    | ~ spl23_41 ),
    inference(avatar_split_clause,[],[f614,f605,f511,f634]) ).

fof(f634,plain,
    ( spl23_46
  <=> ! [X2,X1] : ~ in(unordered_pair(X1,X2),X2) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_46])]) ).

fof(f511,plain,
    ( spl23_25
  <=> ! [X4,X0] : in(X4,unordered_pair(X0,X4)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_25])]) ).

fof(f614,plain,
    ( ! [X2,X1] : ~ in(unordered_pair(X1,X2),X2)
    | ~ spl23_25
    | ~ spl23_41 ),
    inference(resolution,[],[f606,f512]) ).

fof(f512,plain,
    ( ! [X0,X4] : in(X4,unordered_pair(X0,X4))
    | ~ spl23_25 ),
    inference(avatar_component_clause,[],[f511]) ).

fof(f632,plain,
    spl23_45,
    inference(avatar_split_clause,[],[f241,f630]) ).

fof(f241,plain,
    ! [X0,X1] :
      ( subset(X0,union(X1))
      | ~ in(X0,X1) ),
    inference(cnf_transformation,[],[f107]) ).

fof(f107,plain,
    ! [X0,X1] :
      ( subset(X0,union(X1))
      | ~ in(X0,X1) ),
    inference(ennf_transformation,[],[f45]) ).

fof(f45,axiom,
    ! [X0,X1] :
      ( in(X0,X1)
     => subset(X0,union(X1)) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',l50_zfmisc_1) ).

fof(f628,plain,
    ( spl23_44
    | ~ spl23_11
    | ~ spl23_41 ),
    inference(avatar_split_clause,[],[f613,f605,f454,f626]) ).

fof(f626,plain,
    ( spl23_44
  <=> ! [X0] : ~ in(singleton(X0),X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_44])]) ).

fof(f454,plain,
    ( spl23_11
  <=> ! [X3] : in(X3,singleton(X3)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_11])]) ).

fof(f613,plain,
    ( ! [X0] : ~ in(singleton(X0),X0)
    | ~ spl23_11
    | ~ spl23_41 ),
    inference(resolution,[],[f606,f455]) ).

fof(f455,plain,
    ( ! [X3] : in(X3,singleton(X3))
    | ~ spl23_11 ),
    inference(avatar_component_clause,[],[f454]) ).

fof(f624,plain,
    spl23_43,
    inference(avatar_split_clause,[],[f240,f622]) ).

fof(f622,plain,
    ( spl23_43
  <=> ! [X0,X1] :
        ( disjoint(singleton(X0),X1)
        | in(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_43])]) ).

fof(f240,plain,
    ! [X0,X1] :
      ( disjoint(singleton(X0),X1)
      | in(X0,X1) ),
    inference(cnf_transformation,[],[f106]) ).

fof(f106,plain,
    ! [X0,X1] :
      ( disjoint(singleton(X0),X1)
      | in(X0,X1) ),
    inference(ennf_transformation,[],[f40]) ).

fof(f40,axiom,
    ! [X0,X1] :
      ( ~ in(X0,X1)
     => disjoint(singleton(X0),X1) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',l28_zfmisc_1) ).

fof(f620,plain,
    ( ~ spl23_42
    | ~ spl23_1
    | ~ spl23_41 ),
    inference(avatar_split_clause,[],[f612,f605,f409,f617]) ).

fof(f617,plain,
    ( spl23_42
  <=> in(sK1,sK0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_42])]) ).

fof(f612,plain,
    ( ~ in(sK1,sK0)
    | ~ spl23_1
    | ~ spl23_41 ),
    inference(resolution,[],[f606,f411]) ).

fof(f607,plain,
    spl23_41,
    inference(avatar_split_clause,[],[f307,f605]) ).

fof(f307,plain,
    ! [X0,X1] :
      ( ~ in(X1,X0)
      | ~ in(X0,X1) ),
    inference(cnf_transformation,[],[f137]) ).

fof(f137,plain,
    ! [X0,X1] :
      ( ~ in(X1,X0)
      | ~ in(X0,X1) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f1,axiom,
    ! [X0,X1] :
      ( in(X0,X1)
     => ~ in(X1,X0) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',antisymmetry_r2_hidden) ).

fof(f603,plain,
    spl23_40,
    inference(avatar_split_clause,[],[f306,f601]) ).

fof(f601,plain,
    ( spl23_40
  <=> ! [X0,X1] :
        ( disjoint(X1,X0)
        | ~ disjoint(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_40])]) ).

fof(f306,plain,
    ! [X0,X1] :
      ( disjoint(X1,X0)
      | ~ disjoint(X0,X1) ),
    inference(cnf_transformation,[],[f136]) ).

fof(f136,plain,
    ! [X0,X1] :
      ( disjoint(X1,X0)
      | ~ disjoint(X0,X1) ),
    inference(ennf_transformation,[],[f50]) ).

fof(f50,axiom,
    ! [X0,X1] :
      ( disjoint(X0,X1)
     => disjoint(X1,X0) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',symmetry_r1_xboole_0) ).

fof(f599,plain,
    spl23_39,
    inference(avatar_split_clause,[],[f305,f597]) ).

fof(f597,plain,
    ( spl23_39
  <=> ! [X0,X1] :
        ( ~ proper_subset(X1,X0)
        | ~ proper_subset(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_39])]) ).

fof(f305,plain,
    ! [X0,X1] :
      ( ~ proper_subset(X1,X0)
      | ~ proper_subset(X0,X1) ),
    inference(cnf_transformation,[],[f135]) ).

fof(f135,plain,
    ! [X0,X1] :
      ( ~ proper_subset(X1,X0)
      | ~ proper_subset(X0,X1) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f2,axiom,
    ! [X0,X1] :
      ( proper_subset(X0,X1)
     => ~ proper_subset(X1,X0) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',antisymmetry_r2_xboole_0) ).

fof(f588,plain,
    ( spl23_38
    | ~ spl23_13
    | ~ spl23_30 ),
    inference(avatar_split_clause,[],[f559,f542,f463,f586]) ).

fof(f586,plain,
    ( spl23_38
  <=> ! [X6,X7] : ~ proper_subset(set_union2(X6,X7),X6) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_38])]) ).

fof(f463,plain,
    ( spl23_13
  <=> ! [X0,X1] : subset(X0,set_union2(X0,X1)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_13])]) ).

fof(f542,plain,
    ( spl23_30
  <=> ! [X0,X1] :
        ( ~ proper_subset(X1,X0)
        | ~ subset(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_30])]) ).

fof(f559,plain,
    ( ! [X6,X7] : ~ proper_subset(set_union2(X6,X7),X6)
    | ~ spl23_13
    | ~ spl23_30 ),
    inference(resolution,[],[f543,f464]) ).

fof(f464,plain,
    ( ! [X0,X1] : subset(X0,set_union2(X0,X1))
    | ~ spl23_13 ),
    inference(avatar_component_clause,[],[f463]) ).

fof(f543,plain,
    ( ! [X0,X1] :
        ( ~ subset(X0,X1)
        | ~ proper_subset(X1,X0) )
    | ~ spl23_30 ),
    inference(avatar_component_clause,[],[f542]) ).

fof(f584,plain,
    spl23_37,
    inference(avatar_split_clause,[],[f304,f582]) ).

fof(f582,plain,
    ( spl23_37
  <=> ! [X0,X1] :
        ( ~ empty(set_union2(X0,X1))
        | empty(X0) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_37])]) ).

fof(f304,plain,
    ! [X0,X1] :
      ( ~ empty(set_union2(X0,X1))
      | empty(X0) ),
    inference(cnf_transformation,[],[f134]) ).

fof(f134,plain,
    ! [X0,X1] :
      ( ~ empty(set_union2(X0,X1))
      | empty(X0) ),
    inference(ennf_transformation,[],[f32]) ).

fof(f32,axiom,
    ! [X0,X1] :
      ( ~ empty(X0)
     => ~ empty(set_union2(X0,X1)) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',fc2_xboole_0) ).

fof(f580,plain,
    ( spl23_36
    | ~ spl23_15
    | ~ spl23_30 ),
    inference(avatar_split_clause,[],[f558,f542,f471,f578]) ).

fof(f578,plain,
    ( spl23_36
  <=> ! [X4,X5] : ~ proper_subset(X4,set_difference(X4,X5)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_36])]) ).

fof(f471,plain,
    ( spl23_15
  <=> ! [X0,X1] : subset(set_difference(X0,X1),X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_15])]) ).

fof(f558,plain,
    ( ! [X4,X5] : ~ proper_subset(X4,set_difference(X4,X5))
    | ~ spl23_15
    | ~ spl23_30 ),
    inference(resolution,[],[f543,f472]) ).

fof(f472,plain,
    ( ! [X0,X1] : subset(set_difference(X0,X1),X0)
    | ~ spl23_15 ),
    inference(avatar_component_clause,[],[f471]) ).

fof(f576,plain,
    ( spl23_35
    | ~ spl23_14
    | ~ spl23_30 ),
    inference(avatar_split_clause,[],[f556,f542,f467,f574]) ).

fof(f574,plain,
    ( spl23_35
  <=> ! [X2,X1] : ~ proper_subset(X1,set_intersection2(X1,X2)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_35])]) ).

fof(f467,plain,
    ( spl23_14
  <=> ! [X0,X1] : subset(set_intersection2(X0,X1),X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_14])]) ).

fof(f556,plain,
    ( ! [X2,X1] : ~ proper_subset(X1,set_intersection2(X1,X2))
    | ~ spl23_14
    | ~ spl23_30 ),
    inference(resolution,[],[f543,f468]) ).

fof(f468,plain,
    ( ! [X0,X1] : subset(set_intersection2(X0,X1),X0)
    | ~ spl23_14 ),
    inference(avatar_component_clause,[],[f467]) ).

fof(f571,plain,
    spl23_34,
    inference(avatar_split_clause,[],[f303,f569]) ).

fof(f569,plain,
    ( spl23_34
  <=> ! [X0,X1] :
        ( ~ empty(set_union2(X1,X0))
        | empty(X0) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_34])]) ).

fof(f303,plain,
    ! [X0,X1] :
      ( ~ empty(set_union2(X1,X0))
      | empty(X0) ),
    inference(cnf_transformation,[],[f133]) ).

fof(f133,plain,
    ! [X0,X1] :
      ( ~ empty(set_union2(X1,X0))
      | empty(X0) ),
    inference(ennf_transformation,[],[f33]) ).

fof(f33,axiom,
    ! [X0,X1] :
      ( ~ empty(X0)
     => ~ empty(set_union2(X1,X0)) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',fc3_xboole_0) ).

fof(f567,plain,
    ( spl23_33
    | ~ spl23_6
    | ~ spl23_30 ),
    inference(avatar_split_clause,[],[f557,f542,f434,f565]) ).

fof(f565,plain,
    ( spl23_33
  <=> ! [X3] : ~ proper_subset(X3,empty_set) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_33])]) ).

fof(f434,plain,
    ( spl23_6
  <=> ! [X0] : subset(empty_set,X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_6])]) ).

fof(f557,plain,
    ( ! [X3] : ~ proper_subset(X3,empty_set)
    | ~ spl23_6
    | ~ spl23_30 ),
    inference(resolution,[],[f543,f435]) ).

fof(f435,plain,
    ( ! [X0] : subset(empty_set,X0)
    | ~ spl23_6 ),
    inference(avatar_component_clause,[],[f434]) ).

fof(f563,plain,
    ( spl23_32
    | ~ spl23_7
    | ~ spl23_30 ),
    inference(avatar_split_clause,[],[f555,f542,f438,f561]) ).

fof(f561,plain,
    ( spl23_32
  <=> ! [X0] : ~ proper_subset(X0,X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_32])]) ).

fof(f438,plain,
    ( spl23_7
  <=> ! [X0] : subset(X0,X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_7])]) ).

fof(f555,plain,
    ( ! [X0] : ~ proper_subset(X0,X0)
    | ~ spl23_7
    | ~ spl23_30 ),
    inference(resolution,[],[f543,f439]) ).

fof(f439,plain,
    ( ! [X0] : subset(X0,X0)
    | ~ spl23_7 ),
    inference(avatar_component_clause,[],[f438]) ).

fof(f554,plain,
    ( spl23_31
    | ~ spl23_14
    | ~ spl23_29 ),
    inference(avatar_split_clause,[],[f548,f538,f467,f552]) ).

fof(f552,plain,
    ( spl23_31
  <=> ! [X0] : empty_set = set_intersection2(empty_set,X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_31])]) ).

fof(f538,plain,
    ( spl23_29
  <=> ! [X0] :
        ( empty_set = X0
        | ~ subset(X0,empty_set) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_29])]) ).

fof(f548,plain,
    ( ! [X0] : empty_set = set_intersection2(empty_set,X0)
    | ~ spl23_14
    | ~ spl23_29 ),
    inference(resolution,[],[f539,f468]) ).

fof(f539,plain,
    ( ! [X0] :
        ( ~ subset(X0,empty_set)
        | empty_set = X0 )
    | ~ spl23_29 ),
    inference(avatar_component_clause,[],[f538]) ).

fof(f544,plain,
    spl23_30,
    inference(avatar_split_clause,[],[f266,f542]) ).

fof(f266,plain,
    ! [X0,X1] :
      ( ~ proper_subset(X1,X0)
      | ~ subset(X0,X1) ),
    inference(cnf_transformation,[],[f114]) ).

fof(f114,plain,
    ! [X0,X1] :
      ( ~ proper_subset(X1,X0)
      | ~ subset(X0,X1) ),
    inference(ennf_transformation,[],[f80]) ).

fof(f80,axiom,
    ! [X0,X1] :
      ~ ( proper_subset(X1,X0)
        & subset(X0,X1) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t60_xboole_1) ).

fof(f540,plain,
    spl23_29,
    inference(avatar_split_clause,[],[f228,f538]) ).

fof(f228,plain,
    ! [X0] :
      ( empty_set = X0
      | ~ subset(X0,empty_set) ),
    inference(cnf_transformation,[],[f103]) ).

fof(f103,plain,
    ! [X0] :
      ( empty_set = X0
      | ~ subset(X0,empty_set) ),
    inference(ennf_transformation,[],[f73]) ).

fof(f73,axiom,
    ! [X0] :
      ( subset(X0,empty_set)
     => empty_set = X0 ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t3_xboole_1) ).

fof(f536,plain,
    spl23_28,
    inference(avatar_split_clause,[],[f227,f534]) ).

fof(f534,plain,
    ( spl23_28
  <=> ! [X0] : singleton(X0) = unordered_pair(X0,X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_28])]) ).

fof(f227,plain,
    ! [X0] : singleton(X0) = unordered_pair(X0,X0),
    inference(cnf_transformation,[],[f83]) ).

fof(f83,axiom,
    ! [X0] : singleton(X0) = unordered_pair(X0,X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t69_enumset1) ).

fof(f530,plain,
    ( spl23_27
    | ~ spl23_5
    | ~ spl23_21 ),
    inference(avatar_split_clause,[],[f523,f495,f429,f527]) ).

fof(f527,plain,
    ( spl23_27
  <=> empty_set = sK22 ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_27])]) ).

fof(f429,plain,
    ( spl23_5
  <=> empty(sK22) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_5])]) ).

fof(f495,plain,
    ( spl23_21
  <=> ! [X0] :
        ( empty_set = X0
        | ~ empty(X0) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_21])]) ).

fof(f523,plain,
    ( empty_set = sK22
    | ~ spl23_5
    | ~ spl23_21 ),
    inference(resolution,[],[f496,f431]) ).

fof(f431,plain,
    ( empty(sK22)
    | ~ spl23_5 ),
    inference(avatar_component_clause,[],[f429]) ).

fof(f496,plain,
    ( ! [X0] :
        ( ~ empty(X0)
        | empty_set = X0 )
    | ~ spl23_21 ),
    inference(avatar_component_clause,[],[f495]) ).

fof(f517,plain,
    spl23_26,
    inference(avatar_split_clause,[],[f392,f515]) ).

fof(f392,plain,
    ! [X1,X4] : in(X4,unordered_pair(X4,X1)),
    inference(equality_resolution,[],[f391]) ).

fof(f391,plain,
    ! [X2,X1,X4] :
      ( in(X4,X2)
      | unordered_pair(X4,X1) != X2 ),
    inference(equality_resolution,[],[f344]) ).

fof(f344,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X2)
      | X0 != X4
      | unordered_pair(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f202]) ).

fof(f202,plain,
    ! [X0,X1,X2] :
      ( ( unordered_pair(X0,X1) = X2
        | ( ( ( sK17(X0,X1,X2) != X1
              & sK17(X0,X1,X2) != X0 )
            | ~ in(sK17(X0,X1,X2),X2) )
          & ( sK17(X0,X1,X2) = X1
            | sK17(X0,X1,X2) = X0
            | in(sK17(X0,X1,X2),X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ( X1 != X4
                & X0 != X4 ) )
            & ( X1 = X4
              | X0 = X4
              | ~ in(X4,X2) ) )
        | unordered_pair(X0,X1) != X2 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK17])],[f200,f201]) ).

fof(f201,plain,
    ! [X0,X1,X2] :
      ( ? [X3] :
          ( ( ( X1 != X3
              & X0 != X3 )
            | ~ in(X3,X2) )
          & ( X1 = X3
            | X0 = X3
            | in(X3,X2) ) )
     => ( ( ( sK17(X0,X1,X2) != X1
            & sK17(X0,X1,X2) != X0 )
          | ~ in(sK17(X0,X1,X2),X2) )
        & ( sK17(X0,X1,X2) = X1
          | sK17(X0,X1,X2) = X0
          | in(sK17(X0,X1,X2),X2) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f200,plain,
    ! [X0,X1,X2] :
      ( ( unordered_pair(X0,X1) = X2
        | ? [X3] :
            ( ( ( X1 != X3
                & X0 != X3 )
              | ~ in(X3,X2) )
            & ( X1 = X3
              | X0 = X3
              | in(X3,X2) ) ) )
      & ( ! [X4] :
            ( ( in(X4,X2)
              | ( X1 != X4
                & X0 != X4 ) )
            & ( X1 = X4
              | X0 = X4
              | ~ in(X4,X2) ) )
        | unordered_pair(X0,X1) != X2 ) ),
    inference(rectify,[],[f199]) ).

fof(f199,plain,
    ! [X0,X1,X2] :
      ( ( unordered_pair(X0,X1) = X2
        | ? [X3] :
            ( ( ( X1 != X3
                & X0 != X3 )
              | ~ in(X3,X2) )
            & ( X1 = X3
              | X0 = X3
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ( X1 != X3
                & X0 != X3 ) )
            & ( X1 = X3
              | X0 = X3
              | ~ in(X3,X2) ) )
        | unordered_pair(X0,X1) != X2 ) ),
    inference(flattening,[],[f198]) ).

fof(f198,plain,
    ! [X0,X1,X2] :
      ( ( unordered_pair(X0,X1) = X2
        | ? [X3] :
            ( ( ( X1 != X3
                & X0 != X3 )
              | ~ in(X3,X2) )
            & ( X1 = X3
              | X0 = X3
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ( X1 != X3
                & X0 != X3 ) )
            & ( X1 = X3
              | X0 = X3
              | ~ in(X3,X2) ) )
        | unordered_pair(X0,X1) != X2 ) ),
    inference(nnf_transformation,[],[f10]) ).

fof(f10,axiom,
    ! [X0,X1,X2] :
      ( unordered_pair(X0,X1) = X2
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ( X1 = X3
            | X0 = X3 ) ) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',d2_tarski) ).

fof(f513,plain,
    spl23_25,
    inference(avatar_split_clause,[],[f390,f511]) ).

fof(f390,plain,
    ! [X0,X4] : in(X4,unordered_pair(X0,X4)),
    inference(equality_resolution,[],[f389]) ).

fof(f389,plain,
    ! [X2,X0,X4] :
      ( in(X4,X2)
      | unordered_pair(X0,X4) != X2 ),
    inference(equality_resolution,[],[f345]) ).

fof(f345,plain,
    ! [X2,X0,X1,X4] :
      ( in(X4,X2)
      | X1 != X4
      | unordered_pair(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f202]) ).

fof(f509,plain,
    spl23_24,
    inference(avatar_split_clause,[],[f334,f507]) ).

fof(f507,plain,
    ( spl23_24
  <=> ! [X0,X1] :
        ( ~ empty(X1)
        | ~ in(X0,X1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_24])]) ).

fof(f334,plain,
    ! [X0,X1] :
      ( ~ empty(X1)
      | ~ in(X0,X1) ),
    inference(cnf_transformation,[],[f143]) ).

fof(f143,plain,
    ! [X0,X1] :
      ( ~ empty(X1)
      | ~ in(X0,X1) ),
    inference(ennf_transformation,[],[f86]) ).

fof(f86,axiom,
    ! [X0,X1] :
      ~ ( empty(X1)
        & in(X0,X1) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t7_boole) ).

fof(f505,plain,
    spl23_23,
    inference(avatar_split_clause,[],[f298,f503]) ).

fof(f503,plain,
    ( spl23_23
  <=> ! [X0] : set_union2(X0,X0) = X0 ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_23])]) ).

fof(f298,plain,
    ! [X0] : set_union2(X0,X0) = X0,
    inference(cnf_transformation,[],[f100]) ).

fof(f100,plain,
    ! [X0] : set_union2(X0,X0) = X0,
    inference(rectify,[],[f34]) ).

fof(f34,axiom,
    ! [X0,X1] : set_union2(X0,X0) = X0,
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',idempotence_k2_xboole_0) ).

fof(f501,plain,
    spl23_22,
    inference(avatar_split_clause,[],[f297,f499]) ).

fof(f499,plain,
    ( spl23_22
  <=> ! [X0] : set_intersection2(X0,X0) = X0 ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_22])]) ).

fof(f297,plain,
    ! [X0] : set_intersection2(X0,X0) = X0,
    inference(cnf_transformation,[],[f99]) ).

fof(f99,plain,
    ! [X0] : set_intersection2(X0,X0) = X0,
    inference(rectify,[],[f35]) ).

fof(f35,axiom,
    ! [X0,X1] : set_intersection2(X0,X0) = X0,
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',idempotence_k3_xboole_0) ).

fof(f497,plain,
    spl23_21,
    inference(avatar_split_clause,[],[f291,f495]) ).

fof(f291,plain,
    ! [X0] :
      ( empty_set = X0
      | ~ empty(X0) ),
    inference(cnf_transformation,[],[f132]) ).

fof(f132,plain,
    ! [X0] :
      ( empty_set = X0
      | ~ empty(X0) ),
    inference(ennf_transformation,[],[f84]) ).

fof(f84,axiom,
    ! [X0] :
      ( empty(X0)
     => empty_set = X0 ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t6_boole) ).

fof(f493,plain,
    spl23_20,
    inference(avatar_split_clause,[],[f290,f491]) ).

fof(f491,plain,
    ( spl23_20
  <=> ! [X0] : set_difference(X0,empty_set) = X0 ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_20])]) ).

fof(f290,plain,
    ! [X0] : set_difference(X0,empty_set) = X0,
    inference(cnf_transformation,[],[f71]) ).

fof(f71,axiom,
    ! [X0] : set_difference(X0,empty_set) = X0,
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t3_boole) ).

fof(f489,plain,
    spl23_19,
    inference(avatar_split_clause,[],[f289,f487]) ).

fof(f487,plain,
    ( spl23_19
  <=> ! [X0] : set_union2(X0,empty_set) = X0 ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_19])]) ).

fof(f289,plain,
    ! [X0] : set_union2(X0,empty_set) = X0,
    inference(cnf_transformation,[],[f55]) ).

fof(f55,axiom,
    ! [X0] : set_union2(X0,empty_set) = X0,
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t1_boole) ).

fof(f485,plain,
    spl23_18,
    inference(avatar_split_clause,[],[f288,f483]) ).

fof(f483,plain,
    ( spl23_18
  <=> ! [X0] : empty_set = set_difference(empty_set,X0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_18])]) ).

fof(f288,plain,
    ! [X0] : empty_set = set_difference(empty_set,X0),
    inference(cnf_transformation,[],[f78]) ).

fof(f78,axiom,
    ! [X0] : empty_set = set_difference(empty_set,X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t4_boole) ).

fof(f481,plain,
    spl23_17,
    inference(avatar_split_clause,[],[f287,f479]) ).

fof(f479,plain,
    ( spl23_17
  <=> ! [X0] : empty_set = set_intersection2(X0,empty_set) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_17])]) ).

fof(f287,plain,
    ! [X0] : empty_set = set_intersection2(X0,empty_set),
    inference(cnf_transformation,[],[f60]) ).

fof(f60,axiom,
    ! [X0] : empty_set = set_intersection2(X0,empty_set),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t2_boole) ).

fof(f477,plain,
    spl23_16,
    inference(avatar_split_clause,[],[f369,f475]) ).

fof(f475,plain,
    ( spl23_16
  <=> ! [X1] : subset(singleton(X1),singleton(X1)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_16])]) ).

fof(f369,plain,
    ! [X1] : subset(singleton(X1),singleton(X1)),
    inference(equality_resolution,[],[f252]) ).

fof(f252,plain,
    ! [X0,X1] :
      ( subset(X0,singleton(X1))
      | singleton(X1) != X0 ),
    inference(cnf_transformation,[],[f152]) ).

fof(f152,plain,
    ! [X0,X1] :
      ( ( subset(X0,singleton(X1))
        | ( singleton(X1) != X0
          & empty_set != X0 ) )
      & ( singleton(X1) = X0
        | empty_set = X0
        | ~ subset(X0,singleton(X1)) ) ),
    inference(flattening,[],[f151]) ).

fof(f151,plain,
    ! [X0,X1] :
      ( ( subset(X0,singleton(X1))
        | ( singleton(X1) != X0
          & empty_set != X0 ) )
      & ( singleton(X1) = X0
        | empty_set = X0
        | ~ subset(X0,singleton(X1)) ) ),
    inference(nnf_transformation,[],[f70]) ).

fof(f70,axiom,
    ! [X0,X1] :
      ( subset(X0,singleton(X1))
    <=> ( singleton(X1) = X0
        | empty_set = X0 ) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t39_zfmisc_1) ).

fof(f473,plain,
    spl23_15,
    inference(avatar_split_clause,[],[f231,f471]) ).

fof(f231,plain,
    ! [X0,X1] : subset(set_difference(X0,X1),X0),
    inference(cnf_transformation,[],[f65]) ).

fof(f65,axiom,
    ! [X0,X1] : subset(set_difference(X0,X1),X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t36_xboole_1) ).

fof(f469,plain,
    spl23_14,
    inference(avatar_split_clause,[],[f230,f467]) ).

fof(f230,plain,
    ! [X0,X1] : subset(set_intersection2(X0,X1),X0),
    inference(cnf_transformation,[],[f53]) ).

fof(f53,axiom,
    ! [X0,X1] : subset(set_intersection2(X0,X1),X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t17_xboole_1) ).

fof(f465,plain,
    spl23_13,
    inference(avatar_split_clause,[],[f229,f463]) ).

fof(f229,plain,
    ! [X0,X1] : subset(X0,set_union2(X0,X1)),
    inference(cnf_transformation,[],[f87]) ).

fof(f87,axiom,
    ! [X0,X1] : subset(X0,set_union2(X0,X1)),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t7_xboole_1) ).

fof(f461,plain,
    spl23_12,
    inference(avatar_split_clause,[],[f224,f458]) ).

fof(f458,plain,
    ( spl23_12
  <=> powerset(empty_set) = singleton(empty_set) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_12])]) ).

fof(f224,plain,
    powerset(empty_set) = singleton(empty_set),
    inference(cnf_transformation,[],[f57]) ).

fof(f57,axiom,
    powerset(empty_set) = singleton(empty_set),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t1_zfmisc_1) ).

fof(f456,plain,
    spl23_11,
    inference(avatar_split_clause,[],[f382,f454]) ).

fof(f382,plain,
    ! [X3] : in(X3,singleton(X3)),
    inference(equality_resolution,[],[f381]) ).

fof(f381,plain,
    ! [X3,X1] :
      ( in(X3,X1)
      | singleton(X3) != X1 ),
    inference(equality_resolution,[],[f330]) ).

fof(f330,plain,
    ! [X3,X0,X1] :
      ( in(X3,X1)
      | X0 != X3
      | singleton(X0) != X1 ),
    inference(cnf_transformation,[],[f191]) ).

fof(f191,plain,
    ! [X0,X1] :
      ( ( singleton(X0) = X1
        | ( ( sK11(X0,X1) != X0
            | ~ in(sK11(X0,X1),X1) )
          & ( sK11(X0,X1) = X0
            | in(sK11(X0,X1),X1) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X1)
              | X0 != X3 )
            & ( X0 = X3
              | ~ in(X3,X1) ) )
        | singleton(X0) != X1 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK11])],[f189,f190]) ).

fof(f190,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ( X0 != X2
            | ~ in(X2,X1) )
          & ( X0 = X2
            | in(X2,X1) ) )
     => ( ( sK11(X0,X1) != X0
          | ~ in(sK11(X0,X1),X1) )
        & ( sK11(X0,X1) = X0
          | in(sK11(X0,X1),X1) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f189,plain,
    ! [X0,X1] :
      ( ( singleton(X0) = X1
        | ? [X2] :
            ( ( X0 != X2
              | ~ in(X2,X1) )
            & ( X0 = X2
              | in(X2,X1) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X1)
              | X0 != X3 )
            & ( X0 = X3
              | ~ in(X3,X1) ) )
        | singleton(X0) != X1 ) ),
    inference(rectify,[],[f188]) ).

fof(f188,plain,
    ! [X0,X1] :
      ( ( singleton(X0) = X1
        | ? [X2] :
            ( ( X0 != X2
              | ~ in(X2,X1) )
            & ( X0 = X2
              | in(X2,X1) ) ) )
      & ( ! [X2] :
            ( ( in(X2,X1)
              | X0 != X2 )
            & ( X0 = X2
              | ~ in(X2,X1) ) )
        | singleton(X0) != X1 ) ),
    inference(nnf_transformation,[],[f7]) ).

fof(f7,axiom,
    ! [X0,X1] :
      ( singleton(X0) = X1
    <=> ! [X2] :
          ( in(X2,X1)
        <=> X0 = X2 ) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',d1_tarski) ).

fof(f452,plain,
    spl23_10,
    inference(avatar_split_clause,[],[f296,f450]) ).

fof(f450,plain,
    ( spl23_10
  <=> ! [X0,X1] : ~ empty(ordered_pair(X0,X1)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_10])]) ).

fof(f296,plain,
    ! [X0,X1] : ~ empty(ordered_pair(X0,X1)),
    inference(cnf_transformation,[],[f31]) ).

fof(f31,axiom,
    ! [X0,X1] : ~ empty(ordered_pair(X0,X1)),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',fc1_zfmisc_1) ).

fof(f448,plain,
    spl23_9,
    inference(avatar_split_clause,[],[f226,f446]) ).

fof(f446,plain,
    ( spl23_9
  <=> ! [X0] : singleton(X0) != empty_set ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_9])]) ).

fof(f226,plain,
    ! [X0] : singleton(X0) != empty_set,
    inference(cnf_transformation,[],[f37]) ).

fof(f37,axiom,
    ! [X0] : singleton(X0) != empty_set,
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',l1_zfmisc_1) ).

fof(f444,plain,
    spl23_8,
    inference(avatar_split_clause,[],[f373,f442]) ).

fof(f442,plain,
    ( spl23_8
  <=> ! [X2] : ~ in(X2,empty_set) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_8])]) ).

fof(f373,plain,
    ! [X2] : ~ in(X2,empty_set),
    inference(equality_resolution,[],[f292]) ).

fof(f292,plain,
    ! [X2,X0] :
      ( ~ in(X2,X0)
      | empty_set != X0 ),
    inference(cnf_transformation,[],[f167]) ).

fof(f167,plain,
    ! [X0] :
      ( ( empty_set = X0
        | in(sK4(X0),X0) )
      & ( ! [X2] : ~ in(X2,X0)
        | empty_set != X0 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK4])],[f165,f166]) ).

fof(f166,plain,
    ! [X0] :
      ( ? [X1] : in(X1,X0)
     => in(sK4(X0),X0) ),
    introduced(choice_axiom,[]) ).

fof(f165,plain,
    ! [X0] :
      ( ( empty_set = X0
        | ? [X1] : in(X1,X0) )
      & ( ! [X2] : ~ in(X2,X0)
        | empty_set != X0 ) ),
    inference(rectify,[],[f164]) ).

fof(f164,plain,
    ! [X0] :
      ( ( empty_set = X0
        | ? [X1] : in(X1,X0) )
      & ( ! [X1] : ~ in(X1,X0)
        | empty_set != X0 ) ),
    inference(nnf_transformation,[],[f8]) ).

fof(f8,axiom,
    ! [X0] :
      ( empty_set = X0
    <=> ! [X1] : ~ in(X1,X0) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',d1_xboole_0) ).

fof(f440,plain,
    spl23_7,
    inference(avatar_split_clause,[],[f295,f438]) ).

fof(f295,plain,
    ! [X0] : subset(X0,X0),
    inference(cnf_transformation,[],[f98]) ).

fof(f98,plain,
    ! [X0] : subset(X0,X0),
    inference(rectify,[],[f49]) ).

fof(f49,axiom,
    ! [X0,X1] : subset(X0,X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',reflexivity_r1_tarski) ).

fof(f436,plain,
    spl23_6,
    inference(avatar_split_clause,[],[f225,f434]) ).

fof(f225,plain,
    ! [X0] : subset(empty_set,X0),
    inference(cnf_transformation,[],[f62]) ).

fof(f62,axiom,
    ! [X0] : subset(empty_set,X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t2_xboole_1) ).

fof(f432,plain,
    spl23_5,
    inference(avatar_split_clause,[],[f368,f429]) ).

fof(f368,plain,
    empty(sK22),
    inference(cnf_transformation,[],[f221]) ).

fof(f221,plain,
    empty(sK22),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK22])],[f47,f220]) ).

fof(f220,plain,
    ( ? [X0] : empty(X0)
   => empty(sK22) ),
    introduced(choice_axiom,[]) ).

fof(f47,axiom,
    ? [X0] : empty(X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',rc1_xboole_0) ).

fof(f427,plain,
    ~ spl23_4,
    inference(avatar_split_clause,[],[f367,f424]) ).

fof(f424,plain,
    ( spl23_4
  <=> empty(sK21) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_4])]) ).

fof(f367,plain,
    ~ empty(sK21),
    inference(cnf_transformation,[],[f219]) ).

fof(f219,plain,
    ~ empty(sK21),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK21])],[f48,f218]) ).

fof(f218,plain,
    ( ? [X0] : ~ empty(X0)
   => ~ empty(sK21) ),
    introduced(choice_axiom,[]) ).

fof(f48,axiom,
    ? [X0] : ~ empty(X0),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',rc2_xboole_0) ).

fof(f422,plain,
    spl23_3,
    inference(avatar_split_clause,[],[f286,f419]) ).

fof(f419,plain,
    ( spl23_3
  <=> empty(empty_set) ),
    introduced(avatar_definition,[new_symbols(naming,[spl23_3])]) ).

fof(f286,plain,
    empty(empty_set),
    inference(cnf_transformation,[],[f30]) ).

fof(f30,axiom,
    empty(empty_set),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',fc1_xboole_0) ).

fof(f417,plain,
    ~ spl23_2,
    inference(avatar_split_clause,[],[f223,f414]) ).

fof(f223,plain,
    ~ subset(sK0,union(sK1)),
    inference(cnf_transformation,[],[f145]) ).

fof(f145,plain,
    ( ~ subset(sK0,union(sK1))
    & in(sK0,sK1) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f102,f144]) ).

fof(f144,plain,
    ( ? [X0,X1] :
        ( ~ subset(X0,union(X1))
        & in(X0,X1) )
   => ( ~ subset(sK0,union(sK1))
      & in(sK0,sK1) ) ),
    introduced(choice_axiom,[]) ).

fof(f102,plain,
    ? [X0,X1] :
      ( ~ subset(X0,union(X1))
      & in(X0,X1) ),
    inference(ennf_transformation,[],[f93]) ).

fof(f93,negated_conjecture,
    ~ ! [X0,X1] :
        ( in(X0,X1)
       => subset(X0,union(X1)) ),
    inference(negated_conjecture,[],[f92]) ).

fof(f92,conjecture,
    ! [X0,X1] :
      ( in(X0,X1)
     => subset(X0,union(X1)) ),
    file('/export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398',t92_zfmisc_1) ).

fof(f412,plain,
    spl23_1,
    inference(avatar_split_clause,[],[f222,f409]) ).

fof(f222,plain,
    in(sK0,sK1),
    inference(cnf_transformation,[],[f145]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13  % Problem    : SEU163+2 : TPTP v8.1.2. Released v3.3.0.
% 0.00/0.15  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.15/0.36  % Computer : n016.cluster.edu
% 0.15/0.36  % Model    : x86_64 x86_64
% 0.15/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.36  % Memory   : 8042.1875MB
% 0.15/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.36  % CPULimit   : 300
% 0.15/0.36  % WCLimit    : 300
% 0.15/0.36  % DateTime   : Thu Aug 24 01:59:08 EDT 2023
% 0.15/0.36  % CPUTime    : 
% 0.15/0.36  This is a FOF_THM_RFO_SEQ problem
% 0.15/0.36  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/tmp/tmp.UXrHEwBXmq/Vampire---4.8_6398
% 0.15/0.36  % (6583)Running in auto input_syntax mode. Trying TPTP
% 0.22/0.42  % (6585)ott+3_2:7_add=large:amm=off:anc=all:bce=on:drc=off:fsd=off:fde=unused:gs=on:irw=on:lcm=predicate:lma=on:msp=off:nwc=10.0:sac=on_598 on Vampire---4 for (598ds/0Mi)
% 0.22/0.42  % (6586)lrs+11_10:1_bs=unit_only:drc=off:fsd=off:fde=none:gs=on:msp=off:nm=16:nwc=2.0:nicw=on:sos=all:sac=on:sp=reverse_frequency:stl=62_575 on Vampire---4 for (575ds/0Mi)
% 0.22/0.42  % (6589)lrs-1010_2_av=off:bce=on:cond=on:er=filter:fde=unused:lcm=predicate:nm=2:nwc=3.0:sims=off:sp=frequency:urr=on:stl=188_520 on Vampire---4 for (520ds/0Mi)
% 0.22/0.42  % (6588)lrs-1010_20_afr=on:anc=all_dependent:bs=on:bsr=on:cond=on:er=known:fde=none:nm=4:nwc=1.3:sims=off:sp=frequency:urr=on:stl=62_533 on Vampire---4 for (533ds/0Mi)
% 0.22/0.42  % (6584)lrs+1010_20_av=off:bd=off:bs=on:bsr=on:bce=on:flr=on:fde=none:gsp=on:nwc=3.0:tgt=ground:urr=ec_only:stl=125_1192 on Vampire---4 for (1192ds/0Mi)
% 0.22/0.42  % (6590)ott+1010_1_aac=none:bce=on:ep=RS:fsd=off:nm=4:nwc=2.0:nicw=on:sas=z3:sims=off_453 on Vampire---4 for (453ds/0Mi)
% 0.22/0.43  % (6587)lrs+2_5:4_anc=none:br=off:fde=unused:gsp=on:nm=32:nwc=1.3:sims=off:sos=all:urr=on:stl=62_558 on Vampire---4 for (558ds/0Mi)
% 0.22/0.43  % (6585)First to succeed.
% 0.22/0.44  % (6586)Also succeeded, but the first one will report.
% 0.22/0.44  % (6589)Also succeeded, but the first one will report.
% 0.22/0.44  % (6585)Refutation found. Thanks to Tanya!
% 0.22/0.44  % SZS status Theorem for Vampire---4
% 0.22/0.44  % SZS output start Proof for Vampire---4
% See solution above
% 0.22/0.44  % (6585)------------------------------
% 0.22/0.44  % (6585)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.22/0.44  % (6585)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.22/0.44  % (6585)Termination reason: Refutation
% 0.22/0.44  
% 0.22/0.44  % (6585)Memory used [KB]: 10362
% 0.22/0.44  % (6585)Time elapsed: 0.016 s
% 0.22/0.44  % (6585)------------------------------
% 0.22/0.44  % (6585)------------------------------
% 0.22/0.44  % (6583)Success in time 0.077 s
% 0.22/0.44  % Vampire---4.8 exiting
%------------------------------------------------------------------------------