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

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%------------------------------------------------------------------------------
% File     : Leo-III---1.8.0
% Problem  : ITP233^2 : TPTP v9.3.1. Bugfixed v9.2.1.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39

% Computer : n003.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Sep 30 08:07:19 AM UTC 2026

% Result   : Theorem 13.25s 4.73s
% Output   : Refutation 13.71s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :   26
% Syntax   : Number of formulae    :   54 (  34 unt;   0 typ;   0 def)
%            Number of atoms       :   84 (  26 equ;   0 cnn)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :  590 (  18   ~;   0   |;   0   &; 552   @)
%                                         (   0 <=>;  20  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   6 avg)
%            Number of types       :   10 (   9 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   25 (  23 usr;   9 con; 0-4 aty)
%            Number of variables   :   79 (   6   ^;  64   !;   9   ?;  79   :)

% Comments : 
%------------------------------------------------------------------------------
thf(vEBT_VEBT_type,type,
    vEBT_VEBT: $tType ).

thf(product_unit_type,type,
    product_unit: $tType ).

thf(extended_enat_type,type,
    extended_enat: $tType ).

thf(complex_type,type,
    complex: $tType ).

thf(char_type,type,
    char: $tType ).

thf(real_type,type,
    real: $tType ).

thf(num_type,type,
    num: $tType ).

thf(nat_type,type,
    nat: $tType ).

thf(int_type,type,
    int: $tType ).

thf(size_decl,type,
    size: 
      !>[TA: $tType] : $o ).

thf(if_decl,type,
    if: 
      !>[TA: $tType] : ( $o > TA > TA > TA ) ).

thf(set2_decl,type,
    set2: 
      !>[TA: $tType] : ( ( list @ TA ) > ( set @ TA ) ) ).

thf(list_update_decl,type,
    list_update: 
      !>[TA: $tType] : ( ( list @ TA ) > nat > TA > ( list @ TA ) ) ).

thf(nth_decl,type,
    nth: 
      !>[TA: $tType] : ( ( list @ TA ) > nat > TA ) ).

thf(vEBT_V8194947554948674370ptions_decl,type,
    vEBT_V8194947554948674370ptions: vEBT_VEBT > nat > $o ).

thf(vEBT_VEBT_high_decl,type,
    vEBT_VEBT_high: nat > nat > nat ).

thf(vEBT_V5917875025757280293ildren_decl,type,
    vEBT_V5917875025757280293ildren: nat > ( list @ vEBT_VEBT ) > nat > $o ).

thf(vEBT_VEBT_low_decl,type,
    vEBT_VEBT_low: nat > nat > nat ).

thf(vEBT_invar_vebt_decl,type,
    vEBT_invar_vebt: vEBT_VEBT > nat > $o ).

thf(vEBT_vebt_insert_decl,type,
    vEBT_vebt_insert: vEBT_VEBT > nat > vEBT_VEBT ).

thf(vEBT_VEBT_bit_concat_decl,type,
    vEBT_VEBT_bit_concat: nat > nat > nat > nat ).

thf(vEBT_VEBT_minNull_decl,type,
    vEBT_VEBT_minNull: vEBT_VEBT > $o ).

thf(vEBT_vebt_member_decl,type,
    vEBT_vebt_member: vEBT_VEBT > nat > $o ).

thf(member2_decl,type,
    member2: 
      !>[TA: $tType] : ( TA > ( set @ TA ) > $o ) ).

thf(i_decl,type,
    i: nat ).

thf(m_decl,type,
    m: nat ).

thf(na_decl,type,
    na: nat ).

thf(summary_decl,type,
    summary: vEBT_VEBT ).

thf(treeList_decl,type,
    treeList: list @ vEBT_VEBT ).

thf(xa_decl,type,
    xa: nat ).

thf(13,axiom,
    ! [A: vEBT_VEBT] :
      ( ~ ( vEBT_VEBT_minNull @ A )
     => ? [B: nat] : ( vEBT_V8194947554948674370ptions @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_14_not__min__Null__member) ).

thf(56,plain,
    ! [A: vEBT_VEBT] :
      ( ~ ( vEBT_VEBT_minNull @ A )
     => ? [B: nat] : ( vEBT_V8194947554948674370ptions @ A @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).

thf(16,axiom,
    ~ ( vEBT_V8194947554948674370ptions @ summary @ i ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_12__C163_C) ).

thf(60,plain,
    ~ ( vEBT_V8194947554948674370ptions @ summary @ i ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[16]) ).

thf(18,axiom,
    ! [A: vEBT_VEBT] :
      ( ( member2 @ vEBT_VEBT @ A @ ( set2 @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) ) )
     => ( vEBT_invar_vebt @ A @ na ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_16__C11_C) ).

thf(65,plain,
    ! [A: vEBT_VEBT] :
      ( ( member2 @ vEBT_VEBT @ A @ ( set2 @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) ) )
     => ( vEBT_invar_vebt @ A @ na ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[18]) ).

thf(12,axiom,
    ! [TA: $tType,A: nat,B: nat,C: list @ TA,D: TA,E: TA] :
      ( ( A != B )
     => ( ( list_update @ TA @ ( list_update @ TA @ C @ A @ D ) @ B @ E )
        = ( list_update @ TA @ ( list_update @ TA @ C @ B @ E ) @ A @ D ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_17_list__update__swap) ).

thf(53,plain,
    ! [TA: $tType,A: nat,B: nat,C: list @ TA,D: TA,E: TA] :
      ( ( A != B )
     => ( ( list_update @ TA @ ( list_update @ TA @ C @ A @ D ) @ B @ E )
        = ( list_update @ TA @ ( list_update @ TA @ C @ B @ E ) @ A @ D ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[12]) ).

thf(22,axiom,
    ( ~ ( vEBT_VEBT_minNull @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) )
   => ( summary
      = ( vEBT_vebt_insert @ summary @ ( vEBT_VEBT_high @ xa @ na ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_15_nsprop) ).

thf(73,plain,
    ( ~ ( vEBT_VEBT_minNull @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) )
   => ( summary
      = ( vEBT_vebt_insert @ summary @ ( vEBT_VEBT_high @ xa @ na ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[22]) ).

thf(4,axiom,
    vEBT_invar_vebt @ summary @ m,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_26__C1_C) ).

thf(32,plain,
    vEBT_invar_vebt @ summary @ m,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(15,axiom,
    size @ vEBT_VEBT,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',tcon_VEBT__Definitions_OVEBT___Nat_Osize_453) ).

thf(59,plain,
    size @ vEBT_VEBT,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[15]) ).

thf(21,axiom,
    ( i
    = ( vEBT_VEBT_high @ xa @ na ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_0_True) ).

thf(71,plain,
    ( i
    = ( vEBT_VEBT_high @ xa @ na ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[21]) ).

thf(23,axiom,
    ( ( nth @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) @ i )
    = ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_3__C164_C) ).

thf(76,plain,
    ( ( nth @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) @ i )
    = ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[23]) ).

thf(25,axiom,
    ( ( nth @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) @ ( vEBT_VEBT_high @ xa @ na ) )
    = ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_5_insprop) ).

thf(80,plain,
    ( ( nth @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) @ ( vEBT_VEBT_high @ xa @ na ) )
    = ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[25]) ).

thf(8,axiom,
    ! [TA: $tType,A: nat,B: nat,C: list @ TA,D: TA] :
      ( ( A != B )
     => ( ( nth @ TA @ ( list_update @ TA @ C @ A @ D ) @ B )
        = ( nth @ TA @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_11_nth__list__update__neq) ).

thf(43,plain,
    ! [TA: $tType,A: nat,B: nat,C: list @ TA,D: TA] :
      ( ( A != B )
     => ( ( nth @ TA @ ( list_update @ TA @ C @ A @ D ) @ B )
        = ( nth @ TA @ C @ B ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(7,axiom,
    ! [A: vEBT_VEBT,B: nat,C: nat] :
      ( ( vEBT_invar_vebt @ A @ B )
     => ( ( vEBT_V8194947554948674370ptions @ A @ C )
       => ( vEBT_vebt_member @ A @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_20_valid__member__both__member__options) ).

thf(40,plain,
    ! [A: vEBT_VEBT,B: nat,C: nat] :
      ( ( vEBT_invar_vebt @ A @ B )
     => ( ( vEBT_V8194947554948674370ptions @ A @ C )
       => ( vEBT_vebt_member @ A @ C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(27,axiom,
    ! [A: nat,B: nat] :
      ( ( vEBT_VEBT_bit_concat @ ( vEBT_VEBT_high @ A @ B ) @ ( vEBT_VEBT_low @ A @ B ) @ B )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_2_bit__split__inv) ).

thf(83,plain,
    ! [A: nat,B: nat] :
      ( ( vEBT_VEBT_bit_concat @ ( vEBT_VEBT_high @ A @ B ) @ ( vEBT_VEBT_low @ A @ B ) @ B )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[27]) ).

thf(9,axiom,
    vEBT_V8194947554948674370ptions @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_1__C166_C) ).

thf(46,plain,
    vEBT_V8194947554948674370ptions @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

thf(24,axiom,
    ( vEBT_V5917875025757280293ildren
    = ( ^ [A: nat,B: list @ vEBT_VEBT,C: nat] : ( vEBT_V8194947554948674370ptions @ ( nth @ vEBT_VEBT @ B @ ( vEBT_VEBT_high @ C @ A ) ) @ ( vEBT_VEBT_low @ C @ A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_7_in__children__def) ).

thf(78,plain,
    ( vEBT_V5917875025757280293ildren
    = ( ^ [A: nat,B: list @ vEBT_VEBT,C: nat] : ( vEBT_V8194947554948674370ptions @ ( nth @ vEBT_VEBT @ B @ ( vEBT_VEBT_high @ C @ A ) ) @ ( vEBT_VEBT_low @ C @ A ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[24]) ).

thf(1,conjecture,
    ? [A: nat] : ( vEBT_V8194947554948674370ptions @ ( nth @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) @ i ) @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',conj_0) ).

thf(2,negated_conjecture,
    ~ ? [A: nat] : ( vEBT_V8194947554948674370ptions @ ( nth @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) @ i ) @ A ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(28,plain,
    ~ ? [A: nat] : ( vEBT_V8194947554948674370ptions @ ( nth @ vEBT_VEBT @ ( list_update @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) ) @ i ) @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(5,axiom,
    ! [A: vEBT_VEBT,B: nat] :
      ( ( vEBT_VEBT_minNull @ A )
     => ~ ( vEBT_vebt_member @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_19_min__Null__member) ).

thf(33,plain,
    ! [A: vEBT_VEBT,B: nat] :
      ( ( vEBT_VEBT_minNull @ A )
     => ~ ( vEBT_vebt_member @ A @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(11,axiom,
    ! [TA: $tType,A: list @ TA,B: nat] :
      ( ( list_update @ TA @ A @ B @ ( nth @ TA @ A @ B ) )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_10_list__update__id) ).

thf(50,plain,
    ! [TA: $tType,A: list @ TA,B: nat] :
      ( ( list_update @ TA @ A @ B @ ( nth @ TA @ A @ B ) )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).

thf(19,axiom,
    vEBT_invar_vebt @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) @ na,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_9__C165_C) ).

thf(67,plain,
    vEBT_invar_vebt @ ( vEBT_vebt_insert @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ ( vEBT_VEBT_low @ xa @ na ) ) @ na,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[19]) ).

thf(14,axiom,
    vEBT_invar_vebt @ ( if @ vEBT_VEBT @ ( vEBT_VEBT_minNull @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) ) @ ( vEBT_vebt_insert @ summary @ ( vEBT_VEBT_high @ xa @ na ) ) @ summary ) @ m,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_29__C12_C) ).

thf(58,plain,
    vEBT_invar_vebt @ ( if @ vEBT_VEBT @ ( vEBT_VEBT_minNull @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) ) @ ( vEBT_vebt_insert @ summary @ ( vEBT_VEBT_high @ xa @ na ) ) @ summary ) @ m,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[14]) ).

thf(26,axiom,
    vEBT_VEBT_minNull @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_6_tc) ).

thf(82,plain,
    vEBT_VEBT_minNull @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[26]) ).

thf(6,axiom,
    ! [A: vEBT_VEBT,B: nat,C: nat] :
      ( ( vEBT_invar_vebt @ A @ B )
     => ( ( vEBT_V8194947554948674370ptions @ A @ C )
        = ( vEBT_vebt_member @ A @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_21_both__member__options__equiv__member) ).

thf(36,plain,
    ! [A: vEBT_VEBT,B: nat,C: nat] :
      ( ( vEBT_invar_vebt @ A @ B )
     => ( ( vEBT_V8194947554948674370ptions @ A @ C )
        = ( vEBT_vebt_member @ A @ C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(3,axiom,
    ! [A: vEBT_VEBT] :
      ( ( member2 @ vEBT_VEBT @ A @ ( set2 @ vEBT_VEBT @ treeList ) )
     => ( vEBT_invar_vebt @ A @ na ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_24__C0_C) ).

thf(30,plain,
    ! [A: vEBT_VEBT] :
      ( ( member2 @ vEBT_VEBT @ A @ ( set2 @ vEBT_VEBT @ treeList ) )
     => ( vEBT_invar_vebt @ A @ na ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(10,axiom,
    ~ ? [A: nat] : ( vEBT_V8194947554948674370ptions @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_4__C162_C) ).

thf(47,plain,
    ~ ? [A: nat] : ( vEBT_V8194947554948674370ptions @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(20,axiom,
    ! [TA: $tType,A: list @ TA,B: nat,C: TA,D: TA] :
      ( ( list_update @ TA @ ( list_update @ TA @ A @ B @ C ) @ B @ D )
      = ( list_update @ TA @ A @ B @ D ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_13_list__update__overwrite) ).

thf(68,plain,
    ! [TA: $tType,A: list @ TA,B: nat,C: TA,D: TA] :
      ( ( list_update @ TA @ ( list_update @ TA @ A @ B @ C ) @ B @ D )
      = ( list_update @ TA @ A @ B @ D ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[20]) ).

thf(17,axiom,
    ~ ? [A: nat] : ( vEBT_vebt_member @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fact_8__C161_C) ).

thf(62,plain,
    ~ ? [A: nat] : ( vEBT_vebt_member @ ( nth @ vEBT_VEBT @ treeList @ ( vEBT_VEBT_high @ xa @ na ) ) @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).

thf(86,plain,
    $false,
    inference(e,[status(thm)],[56,60,65,53,73,32,59,71,76,80,43,40,83,46,78,28,33,50,67,58,82,36,30,47,68,62]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : ITP233^2 : TPTP v9.3.1. Bugfixed v9.2.1.
% 0.00/0.09  % Command  : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.09/0.23  % Computer : n003.cluster.edu
% 0.09/0.23  % Model    : x86_64 x86_64
% 0.09/0.23  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.23  % Memory   : 8046.5625MB
% 0.09/0.23  % OS       : Linux 6.8.0-71-generic
% 0.09/0.23  % CPULimit : 300
% 0.09/0.23  % WCLimit  : 300
% 0.09/0.23  % DateTime : Tue Sep 29 20:26:59 UTC 2026
% 0.09/0.23  % CPUTime  : 
% 0.09/0.23  Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p  --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 1.03/0.83  % [INFO] 	 Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ... 
% 6.06/2.41  % [INFO] 	 Parsing done (1583ms). 
% 6.06/2.43  % [INFO] 	 Running in sequential loop mode. 
% 6.79/2.81  % [INFO] 	 eprover registered as external prover. 
% 6.79/2.82  % [INFO] 	 Scanning for conjecture ... 
% 8.70/3.44  % [INFO] 	 Found a conjecture (or negated_conjecture) and 8814 axioms. Running axiom selection ... 
% 9.80/3.74  % [INFO] 	 Axiom selection finished. Selected 25 axioms (removed 8789 axioms). 
% 9.80/3.78  % [INFO] 	 Problem is higher-order (TPTP THF). 
% 9.80/3.79  % [INFO] 	 Type checking passed. 
% 9.80/3.79  % [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 ... 
% 13.25/4.72  % External prover 'e' found a proof!
% 13.25/4.72  % [INFO] 	 Killing All external provers ... 
% 13.25/4.72  % Time passed: 4342ms (effective reasoning time: 2286ms)
% 13.25/4.72  % 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)>
% 13.25/4.73  % Axioms used in derivation (25): tcon_VEBT__Definitions_OVEBT___Nat_Osize_453, fact_14_not__min__Null__member, fact_15_nsprop, fact_1__C166_C, fact_6_tc, fact_7_in__children__def, fact_20_valid__member__both__member__options, fact_5_insprop, fact_16__C11_C, fact_26__C1_C, fact_17_list__update__swap, fact_13_list__update__overwrite, fact_3__C164_C, fact_29__C12_C, fact_10_list__update__id, fact_19_min__Null__member, fact_21_both__member__options__equiv__member, fact_2_bit__split__inv, fact_4__C162_C, fact_24__C0_C, fact_11_nth__list__update__neq, fact_9__C165_C, fact_12__C163_C, fact_0_True, fact_8__C161_C
% 13.25/4.73  % No. of inferences in proof: 54
% 13.25/4.73  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : 4342 ms resp. 2286 ms w/o parsing
% 13.71/4.81  % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 13.71/4.81  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------