TSTP Solution File: SET609+3 by Leo-III---1.7.7

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Leo-III---1.7.7
% Problem  : SET609+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n020.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 : Fri May 19 11:53:45 EDT 2023

% Result   : Theorem 9.07s 2.76s
% Output   : Refutation 9.13s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   19
% Syntax   : Number of formulae    :  119 (  19 unt;   9 typ;   0 def)
%            Number of atoms       :  303 (  72 equ;   0 cnn)
%            Maximal formula atoms :   10 (   2 avg)
%            Number of connectives : 1152 ( 123   ~; 109   |;  28   &; 854   @)
%                                         (   7 <=>;  31  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   8 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   12 (  12   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   12 (   9 usr;   5 con; 0-2 aty)
%            Number of variables   :  355 (   0   ^; 355   !;   0   ?; 355   :)

% Comments : 
%------------------------------------------------------------------------------
thf(difference_type,type,
    difference: $i > $i > $i ).

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

thf(intersection_type,type,
    intersection: $i > $i > $i ).

thf(member_type,type,
    member: $i > $i > $o ).

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

thf(sk1_type,type,
    sk1: $i ).

thf(sk2_type,type,
    sk2: $i ).

thf(sk3_type,type,
    sk3: $i ).

thf(sk4_type,type,
    sk4: $i > $i > $i ).

thf(7,axiom,
    ! [A: $i,B: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_of_union) ).

thf(45,plain,
    ! [A: $i,B: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(46,plain,
    ! [B: $i,A: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(cnf,[status(esa)],[45]) ).

thf(47,plain,
    ! [B: $i,A: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(lifteq,[status(thm)],[46]) ).

thf(3,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( member @ C @ ( union @ A @ B ) )
    <=> ( ( member @ C @ A )
        | ( member @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',union_defn) ).

thf(15,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( member @ C @ ( union @ A @ B ) )
       => ( ( member @ C @ A )
          | ( member @ C @ B ) ) )
      & ( ( ( member @ C @ A )
          | ( member @ C @ B ) )
       => ( member @ C @ ( union @ A @ B ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(16,plain,
    ( ! [A: $i,B: $i,C: $i] :
        ( ( member @ C @ ( union @ A @ B ) )
       => ( ( member @ C @ A )
          | ( member @ C @ B ) ) )
    & ! [A: $i,B: $i,C: $i] :
        ( ( ( member @ C @ A )
          | ( member @ C @ B ) )
       => ( member @ C @ ( union @ A @ B ) ) ) ),
    inference(miniscope,[status(thm)],[15]) ).

thf(17,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ A @ B ) ) ),
    inference(cnf,[status(esa)],[16]) ).

thf(20,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ A @ B ) ) ),
    inference(simp,[status(thm)],[17]) ).

thf(5,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( member @ C @ ( difference @ A @ B ) )
    <=> ( ( member @ C @ A )
        & ~ ( member @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',difference_defn) ).

thf(28,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( member @ C @ ( difference @ A @ B ) )
       => ( ( member @ C @ A )
          & ~ ( member @ C @ B ) ) )
      & ( ( ( member @ C @ A )
          & ~ ( member @ C @ B ) )
       => ( member @ C @ ( difference @ A @ B ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(29,plain,
    ( ! [A: $i,B: $i,C: $i] :
        ( ( member @ C @ ( difference @ A @ B ) )
       => ( ( member @ C @ A )
          & ~ ( member @ C @ B ) ) )
    & ! [A: $i,B: $i,C: $i] :
        ( ( ( member @ C @ A )
          & ~ ( member @ C @ B ) )
       => ( member @ C @ ( difference @ A @ B ) ) ) ),
    inference(miniscope,[status(thm)],[28]) ).

thf(32,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( difference @ A @ B ) )
      | ~ ( member @ C @ B ) ),
    inference(cnf,[status(esa)],[29]) ).

thf(91,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ~ ( member @ F @ ( difference @ D @ E ) )
      | ( ( member @ C @ ( union @ A @ B ) )
       != ( member @ F @ E ) ) ),
    inference(paramod_ordered,[status(thm)],[20,32]) ).

thf(92,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ~ ( member @ A @ ( difference @ B @ ( union @ C @ D ) ) ) ),
    inference(pattern_uni,[status(thm)],[91:[bind(A,$thf( G )),bind(B,$thf( H )),bind(C,$thf( C )),bind(D,$thf( D )),bind(E,$thf( union @ G @ H )),bind(F,$thf( C ))]]) ).

thf(104,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ~ ( member @ A @ ( difference @ B @ ( union @ C @ D ) ) ) ),
    inference(simp,[status(thm)],[92]) ).

thf(180,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ( ( member @ A @ ( difference @ B @ ( union @ C @ D ) ) )
       != ( member @ A @ C ) )
      | ~ $true ),
    inference(eqfactor_ordered,[status(thm)],[104]) ).

thf(182,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ( A != A )
      | ( ( difference @ B @ ( union @ C @ D ) )
       != C ) ),
    inference(simp,[status(thm)],[180]) ).

thf(185,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ( ( difference @ B @ ( union @ C @ D ) )
       != C ) ),
    inference(simp,[status(thm)],[182]) ).

thf(194,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ E )
      | ( ( difference @ D @ ( union @ B @ A ) )
       != E )
      | ( ( union @ A @ B )
       != ( union @ E @ F ) ) ),
    inference(paramod_ordered,[status(thm)],[47,185]) ).

thf(195,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( ( difference @ D @ ( union @ B @ A ) )
       != A ) ),
    inference(pattern_uni,[status(thm)],[194:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( C )),bind(D,$thf( D )),bind(E,$thf( A )),bind(F,$thf( B ))]]) ).

thf(456,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ E @ C )
      | ( ( difference @ F @ ( union @ B @ A ) )
       != C )
      | ( ( union @ A @ B )
       != ( union @ D @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[47,195]) ).

thf(457,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ D @ ( union @ B @ A ) )
       != B ) ),
    inference(pattern_uni,[status(thm)],[456:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( B )),bind(D,$thf( A ))]]) ).

thf(468,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ D @ ( union @ B @ A ) )
       != B ) ),
    inference(simp,[status(thm)],[457]) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( member @ C @ A )
         => ( member @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subset_defn) ).

thf(51,plain,
    ! [A: $i,B: $i] :
      ( ( ( subset @ A @ B )
       => ! [C: $i] :
            ( ( member @ C @ A )
           => ( member @ C @ B ) ) )
      & ( ! [C: $i] :
            ( ( member @ C @ A )
           => ( member @ C @ B ) )
       => ( subset @ A @ B ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

thf(52,plain,
    ( ! [A: $i,B: $i] :
        ( ( subset @ A @ B )
       => ! [C: $i] :
            ( ( member @ C @ A )
           => ( member @ C @ B ) ) )
    & ! [A: $i,B: $i] :
        ( ! [C: $i] :
            ( ( member @ C @ A )
           => ( member @ C @ B ) )
       => ( subset @ A @ B ) ) ),
    inference(miniscope,[status(thm)],[51]) ).

thf(53,plain,
    ! [B: $i,A: $i] :
      ( ( member @ ( sk4 @ B @ A ) @ A )
      | ( subset @ A @ B ) ),
    inference(cnf,[status(esa)],[52]) ).

thf(56,plain,
    ! [B: $i,A: $i] :
      ( ( member @ ( sk4 @ B @ A ) @ A )
      | ( subset @ A @ B ) ),
    inference(simp,[status(thm)],[53]) ).

thf(1,conjecture,
    ! [A: $i,B: $i,C: $i] :
      ( ( difference @ A @ ( difference @ B @ C ) )
      = ( union @ ( difference @ A @ B ) @ ( intersection @ A @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_th81) ).

thf(2,negated_conjecture,
    ~ ! [A: $i,B: $i,C: $i] :
        ( ( difference @ A @ ( difference @ B @ C ) )
        = ( union @ ( difference @ A @ B ) @ ( intersection @ A @ C ) ) ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(12,plain,
    ~ ! [A: $i,B: $i,C: $i] :
        ( ( difference @ A @ ( difference @ B @ C ) )
        = ( union @ ( difference @ A @ B ) @ ( intersection @ A @ C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(13,plain,
    ( ( difference @ sk1 @ ( difference @ sk2 @ sk3 ) )
   != ( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) ) ),
    inference(cnf,[status(esa)],[12]) ).

thf(14,plain,
    ( ( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) )
   != ( difference @ sk1 @ ( difference @ sk2 @ sk3 ) ) ),
    inference(lifteq,[status(thm)],[13]) ).

thf(18,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( member @ C @ ( union @ A @ B ) ) ),
    inference(cnf,[status(esa)],[16]) ).

thf(21,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( member @ C @ ( union @ A @ B ) ) ),
    inference(simp,[status(thm)],[18]) ).

thf(202,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ A @ B )
      | ( member @ E @ ( union @ C @ D ) )
      | ( ( member @ ( sk4 @ B @ A ) @ A )
       != ( member @ E @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[56,21]) ).

thf(203,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ A @ C ) ) ),
    inference(pattern_uni,[status(thm)],[202:[bind(A,$thf( G )),bind(B,$thf( F )),bind(C,$thf( C )),bind(D,$thf( G )),bind(E,$thf( sk4 @ F @ G ))]]) ).

thf(225,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ A @ C ) ) ),
    inference(simp,[status(thm)],[203]) ).

thf(93,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ E @ C )
      | ( member @ E @ ( union @ B @ A ) )
      | ( ( union @ A @ B )
       != ( union @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[47,20]) ).

thf(94,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(pattern_uni,[status(thm)],[93:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(105,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(simp,[status(thm)],[94]) ).

thf(8,axiom,
    ! [A: $i,B: $i] :
      ( ( intersection @ A @ B )
      = ( intersection @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_of_intersection) ).

thf(48,plain,
    ! [A: $i,B: $i] :
      ( ( intersection @ A @ B )
      = ( intersection @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(10,axiom,
    ! [A: $i] : ( subset @ A @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',reflexivity_of_subset) ).

thf(58,plain,
    ! [A: $i] : ( subset @ A @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equal_defn) ).

thf(34,plain,
    ! [A: $i,B: $i] :
      ( ( ( A = B )
       => ( ( subset @ A @ B )
          & ( subset @ B @ A ) ) )
      & ( ( ( subset @ A @ B )
          & ( subset @ B @ A ) )
       => ( A = B ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(35,plain,
    ( ! [A: $i,B: $i] :
        ( ( A = B )
       => ( ( subset @ A @ B )
          & ( subset @ B @ A ) ) )
    & ! [A: $i,B: $i] :
        ( ( ( subset @ A @ B )
          & ( subset @ B @ A ) )
       => ( A = B ) ) ),
    inference(miniscope,[status(thm)],[34]) ).

thf(37,plain,
    ! [B: $i,A: $i] :
      ( ( A != B )
      | ( subset @ A @ B ) ),
    inference(cnf,[status(esa)],[35]) ).

thf(41,plain,
    ! [B: $i,A: $i] :
      ( ( A != B )
      | ( subset @ A @ B ) ),
    inference(lifteq,[status(thm)],[37]) ).

thf(42,plain,
    ! [A: $i] : ( subset @ A @ A ),
    inference(simp,[status(thm)],[41]) ).

thf(4,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( member @ C @ ( intersection @ A @ B ) )
    <=> ( ( member @ C @ A )
        & ( member @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersection_defn) ).

thf(22,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( member @ C @ ( intersection @ A @ B ) )
       => ( ( member @ C @ A )
          & ( member @ C @ B ) ) )
      & ( ( ( member @ C @ A )
          & ( member @ C @ B ) )
       => ( member @ C @ ( intersection @ A @ B ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(23,plain,
    ( ! [A: $i,B: $i,C: $i] :
        ( ( member @ C @ ( intersection @ A @ B ) )
       => ( ( member @ C @ A )
          & ( member @ C @ B ) ) )
    & ! [A: $i,B: $i,C: $i] :
        ( ( ( member @ C @ A )
          & ( member @ C @ B ) )
       => ( member @ C @ ( intersection @ A @ B ) ) ) ),
    inference(miniscope,[status(thm)],[22]) ).

thf(25,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( intersection @ A @ B ) )
      | ( member @ C @ A ) ),
    inference(cnf,[status(esa)],[23]) ).

thf(54,plain,
    ! [B: $i,A: $i] :
      ( ~ ( member @ ( sk4 @ B @ A ) @ B )
      | ( subset @ A @ B ) ),
    inference(cnf,[status(esa)],[52]) ).

thf(57,plain,
    ! [B: $i,A: $i] :
      ( ~ ( member @ ( sk4 @ B @ A ) @ B )
      | ( subset @ A @ B ) ),
    inference(simp,[status(thm)],[54]) ).

thf(218,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ A @ B )
      | ( ( difference @ D @ ( union @ E @ F ) )
       != E )
      | ( ( member @ ( sk4 @ B @ A ) @ A )
       != ( member @ C @ E ) ) ),
    inference(paramod_ordered,[status(thm)],[56,185]) ).

thf(219,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ A @ ( union @ D @ B ) )
       != D ) ),
    inference(pattern_uni,[status(thm)],[218:[bind(A,$thf( H )),bind(B,$thf( G )),bind(C,$thf( sk4 @ G @ H )),bind(D,$thf( D )),bind(E,$thf( H ))]]) ).

thf(233,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ A @ ( union @ D @ B ) )
       != D ) ),
    inference(simp,[status(thm)],[219]) ).

thf(11,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ! [C: $i] :
          ( ( member @ C @ A )
        <=> ( member @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equal_member_defn) ).

thf(60,plain,
    ! [A: $i,B: $i] :
      ( ( ( A = B )
       => ! [C: $i] :
            ( ( ( member @ C @ A )
             => ( member @ C @ B ) )
            & ( ( member @ C @ B )
             => ( member @ C @ A ) ) ) )
      & ( ! [C: $i] :
            ( ( ( member @ C @ A )
             => ( member @ C @ B ) )
            & ( ( member @ C @ B )
             => ( member @ C @ A ) ) )
       => ( A = B ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).

thf(49,plain,
    ! [B: $i,A: $i] :
      ( ( intersection @ A @ B )
      = ( intersection @ B @ A ) ),
    inference(cnf,[status(esa)],[48]) ).

thf(50,plain,
    ! [B: $i,A: $i] :
      ( ( intersection @ A @ B )
      = ( intersection @ B @ A ) ),
    inference(lifteq,[status(thm)],[49]) ).

thf(26,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( intersection @ A @ B ) )
      | ( member @ C @ B ) ),
    inference(cnf,[status(esa)],[23]) ).

thf(154,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ E @ ( intersection @ B @ A ) )
      | ( member @ E @ D )
      | ( ( intersection @ A @ B )
       != ( intersection @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[50,26]) ).

thf(155,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( intersection @ B @ A ) )
      | ( member @ C @ B ) ),
    inference(pattern_uni,[status(thm)],[154:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(160,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( intersection @ B @ A ) )
      | ( member @ C @ B ) ),
    inference(simp,[status(thm)],[155]) ).

thf(30,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ B )
      | ( member @ C @ ( difference @ A @ B ) ) ),
    inference(cnf,[status(esa)],[29]) ).

thf(33,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ B )
      | ( member @ C @ ( difference @ A @ B ) ) ),
    inference(simp,[status(thm)],[30]) ).

thf(196,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ E )
      | ( ( difference @ D @ ( union @ A @ B ) )
       != E )
      | ( ( union @ B @ A )
       != ( union @ E @ F ) ) ),
    inference(paramod_ordered,[status(thm)],[47,185]) ).

thf(197,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ D @ ( union @ A @ B ) )
       != B ) ),
    inference(pattern_uni,[status(thm)],[196:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( C )),bind(D,$thf( D )),bind(E,$thf( B )),bind(F,$thf( A ))]]) ).

thf(200,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ A @ B )
      | ( member @ E @ ( union @ C @ D ) )
      | ( ( member @ ( sk4 @ B @ A ) @ A )
       != ( member @ E @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[56,20]) ).

thf(201,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ C @ A ) ) ),
    inference(pattern_uni,[status(thm)],[200:[bind(A,$thf( G )),bind(B,$thf( F )),bind(C,$thf( G )),bind(D,$thf( D )),bind(E,$thf( sk4 @ F @ G ))]]) ).

thf(224,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ C @ A ) ) ),
    inference(simp,[status(thm)],[201]) ).

thf(24,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ~ ( member @ C @ B )
      | ( member @ C @ ( intersection @ A @ B ) ) ),
    inference(cnf,[status(esa)],[23]) ).

thf(27,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ~ ( member @ C @ B )
      | ( member @ C @ ( intersection @ A @ B ) ) ),
    inference(simp,[status(thm)],[24]) ).

thf(31,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( difference @ A @ B ) )
      | ( member @ C @ A ) ),
    inference(cnf,[status(esa)],[29]) ).

thf(36,plain,
    ! [B: $i,A: $i] :
      ( ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A )
      | ( A = B ) ),
    inference(cnf,[status(esa)],[35]) ).

thf(39,plain,
    ! [B: $i,A: $i] :
      ( ( A = B )
      | ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A ) ),
    inference(lifteq,[status(thm)],[36]) ).

thf(40,plain,
    ! [B: $i,A: $i] :
      ( ( A = B )
      | ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A ) ),
    inference(simp,[status(thm)],[39]) ).

thf(125,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ E @ D )
      | ( member @ E @ ( union @ B @ A ) )
      | ( ( union @ A @ B )
       != ( union @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[47,21]) ).

thf(126,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(pattern_uni,[status(thm)],[125:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(139,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(simp,[status(thm)],[126]) ).

thf(142,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ E @ ( intersection @ B @ A ) )
      | ( member @ E @ C )
      | ( ( intersection @ A @ B )
       != ( intersection @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[50,25]) ).

thf(143,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( intersection @ B @ A ) )
      | ( member @ C @ A ) ),
    inference(pattern_uni,[status(thm)],[142:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(151,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( intersection @ B @ A ) )
      | ( member @ C @ A ) ),
    inference(simp,[status(thm)],[143]) ).

thf(19,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( union @ A @ B ) )
      | ( member @ C @ A )
      | ( member @ C @ B ) ),
    inference(cnf,[status(esa)],[16]) ).

thf(865,plain,
    ! [B: $i,A: $i] :
      ( ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A )
      | ( B
       != ( difference @ sk1 @ ( difference @ sk2 @ sk3 ) ) )
      | ( A
       != ( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[40,14]) ).

thf(866,plain,
    ! [A: $i] :
      ( ~ ( subset @ ( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) ) @ A )
      | ~ ( subset @ A @ ( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) ) )
      | ( A
       != ( difference @ sk1 @ ( difference @ sk2 @ sk3 ) ) ) ),
    inference(pattern_uni,[status(thm)],[865:[bind(A,$thf( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) )),bind(B,$thf( B ))]]) ).

thf(1093,plain,
    ( ~ ( subset @ ( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) ) @ ( difference @ sk1 @ ( difference @ sk2 @ sk3 ) ) )
    | ~ ( subset @ ( difference @ sk1 @ ( difference @ sk2 @ sk3 ) ) @ ( union @ ( difference @ sk1 @ sk2 ) @ ( intersection @ sk1 @ sk3 ) ) ) ),
    inference(simp,[status(thm)],[866]) ).

thf(448,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ A @ B )
      | ( ( difference @ F @ ( union @ D @ C ) )
       != C )
      | ( ( member @ ( sk4 @ B @ A ) @ A )
       != ( member @ E @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[56,195]) ).

thf(449,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ B @ ( union @ A @ D ) )
       != D ) ),
    inference(pattern_uni,[status(thm)],[448:[bind(A,$thf( H )),bind(B,$thf( G )),bind(C,$thf( H )),bind(D,$thf( D )),bind(E,$thf( sk4 @ G @ H ))]]) ).

thf(464,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ B @ ( union @ A @ D ) )
       != D ) ),
    inference(simp,[status(thm)],[449]) ).

thf(458,plain,
    ! [F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ E @ C )
      | ( ( difference @ F @ ( union @ A @ B ) )
       != C )
      | ( ( union @ B @ A )
       != ( union @ D @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[47,195]) ).

thf(459,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( ( difference @ D @ ( union @ A @ B ) )
       != A ) ),
    inference(pattern_uni,[status(thm)],[458:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(469,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( ( difference @ D @ ( union @ A @ B ) )
       != A ) ),
    inference(simp,[status(thm)],[459]) ).

thf(80,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( member @ C @ ( difference @ A @ B ) )
       != ( member @ C @ B ) )
      | ~ $true ),
    inference(eqfactor_ordered,[status(thm)],[32]) ).

thf(82,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( C != C )
      | ( ( difference @ A @ B )
       != B ) ),
    inference(simp,[status(thm)],[80]) ).

thf(83,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ A @ B )
       != B ) ),
    inference(simp,[status(thm)],[82]) ).

thf(523,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( subset @ D @ E )
      | ( ( member @ ( sk4 @ B @ C ) @ ( union @ C @ A ) )
       != ( member @ ( sk4 @ E @ D ) @ E ) ) ),
    inference(paramod_ordered,[status(thm)],[224,57]) ).

thf(524,plain,
    ! [B: $i,A: $i] :
      ( ( subset @ A @ ( union @ A @ B ) )
      | ( subset @ A @ ( union @ A @ B ) ) ),
    inference(pattern_uni,[status(thm)],[523:[bind(A,$thf( G )),bind(B,$thf( union @ F @ G )),bind(C,$thf( F )),bind(D,$thf( F )),bind(E,$thf( union @ F @ G ))]]) ).

thf(543,plain,
    ! [B: $i,A: $i] : ( subset @ A @ ( union @ A @ B ) ),
    inference(simp,[status(thm)],[524]) ).

thf(559,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ C @ ( union @ B @ A ) )
      | ( ( union @ A @ B )
       != ( union @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[47,543]) ).

thf(560,plain,
    ! [B: $i,A: $i] : ( subset @ A @ ( union @ B @ A ) ),
    inference(pattern_uni,[status(thm)],[559:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(216,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ A @ B )
      | ( ( difference @ C @ D )
       != D )
      | ( ( member @ ( sk4 @ B @ A ) @ A )
       != ( member @ E @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[56,83]) ).

thf(217,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( ( difference @ A @ C )
       != C ) ),
    inference(pattern_uni,[status(thm)],[216:[bind(A,$thf( G )),bind(B,$thf( F )),bind(C,$thf( C )),bind(D,$thf( G )),bind(E,$thf( sk4 @ F @ G ))]]) ).

thf(232,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( ( difference @ A @ C )
       != C ) ),
    inference(simp,[status(thm)],[217]) ).

thf(1488,plain,
    $false,
    inference(cvc4,[status(thm)],[468,56,14,225,105,12,48,104,58,195,185,42,25,20,57,233,60,28,160,21,33,197,224,45,32,34,22,27,50,31,40,26,139,151,51,19,1093,464,47,15,469,83,543,560,232]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : SET609+3 : TPTP v8.1.2. Released v2.2.0.
% 0.10/0.15  % Command  : run_Leo-III %s %d
% 0.15/0.35  % Computer : n020.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit : 300
% 0.15/0.35  % WCLimit  : 300
% 0.15/0.35  % DateTime : Thu May 18 19:00:03 EDT 2023
% 0.15/0.35  % CPUTime  : 
% 0.85/0.83  % [INFO] 	 Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ... 
% 1.17/0.96  % [INFO] 	 Parsing done (120ms). 
% 1.17/0.96  % [INFO] 	 Running in sequential loop mode. 
% 1.49/1.16  % [INFO] 	 eprover registered as external prover. 
% 1.49/1.16  % [INFO] 	 cvc4 registered as external prover. 
% 1.49/1.17  % [INFO] 	 Scanning for conjecture ... 
% 1.80/1.23  % [INFO] 	 Found a conjecture and 9 axioms. Running axiom selection ... 
% 1.80/1.25  % [INFO] 	 Axiom selection finished. Selected 9 axioms (removed 0 axioms). 
% 1.80/1.27  % [INFO] 	 Problem is first-order (TPTP FOF). 
% 1.80/1.27  % [INFO] 	 Type checking passed. 
% 1.80/1.27  % [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 ... 
% 9.07/2.75  % External prover 'cvc4' found a proof!
% 9.07/2.75  % [INFO] 	 Killing All external provers ... 
% 9.07/2.76  % Time passed: 2251ms (effective reasoning time: 1789ms)
% 9.07/2.76  % 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)>
% 9.07/2.76  % Axioms used in derivation (9): reflexivity_of_subset, equal_member_defn, equal_defn, intersection_defn, commutativity_of_intersection, difference_defn, commutativity_of_union, union_defn, subset_defn
% 9.07/2.76  % No. of inferences in proof: 110
% 9.07/2.76  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : 2251 ms resp. 1789 ms w/o parsing
% 9.13/2.81  % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 9.13/2.81  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------