TSTP Solution File: SET615+3 by Leo-III---1.7.7

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Leo-III---1.7.7
% Problem  : SET615+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n011.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 11:53:48 EDT 2023

% Result   : Theorem 11.32s 3.15s
% Output   : Refutation 11.49s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   18
% Syntax   : Number of formulae    :  118 (  15 unt;  10 typ;   0 def)
%            Number of atoms       :  312 (  76 equ;   0 cnn)
%            Maximal formula atoms :   10 (   2 avg)
%            Number of connectives : 1192 ( 124   ~; 121   |;  24   &; 884   @)
%                                         (   6 <=>;  33  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   8 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   14 (  14   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   13 (  10 usr;   5 con; 0-2 aty)
%            Number of variables   :  343 (   0   ^; 343   !;   0   ?; 343   :)

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

thf(union_type,type,
    union: $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(sk5_type,type,
    sk5: $i > $i > $i ).

thf(sk6_type,type,
    sk6: $i > $i > $i ).

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

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

thf(10,plain,
    ~ ! [A: $i,B: $i,C: $i] :
        ( ( difference @ ( union @ A @ B ) @ C )
        = ( union @ ( difference @ A @ C ) @ ( difference @ B @ C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(7,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( member @ C @ A )
         => ( member @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subset_defn) ).

thf(40,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)],[7]) ).

thf(41,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)],[40]) ).

thf(42,plain,
    ! [B: $i,A: $i] :
      ( ( member @ ( sk4 @ B @ A ) @ A )
      | ( subset @ A @ B ) ),
    inference(cnf,[status(esa)],[41]) ).

thf(45,plain,
    ! [B: $i,A: $i] :
      ( ( member @ ( sk4 @ B @ A ) @ A )
      | ( subset @ A @ B ) ),
    inference(simp,[status(thm)],[42]) ).

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

thf(13,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(14,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)],[13]) ).

thf(16,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( member @ C @ ( union @ A @ B ) ) ),
    inference(cnf,[status(esa)],[14]) ).

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

thf(143,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)],[45,19]) ).

thf(144,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ A @ C ) ) ),
    inference(pattern_uni,[status(thm)],[143:[bind(A,$thf( G )),bind(B,$thf( F )),bind(C,$thf( C )),bind(D,$thf( G )),bind(E,$thf( sk4 @ F @ G ))]]) ).

thf(147,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ A @ C ) ) ),
    inference(simp,[status(thm)],[144]) ).

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

thf(37,plain,
    ! [A: $i,B: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(38,plain,
    ! [B: $i,A: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(cnf,[status(esa)],[37]) ).

thf(39,plain,
    ! [B: $i,A: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(lifteq,[status(thm)],[38]) ).

thf(15,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ A @ B ) ) ),
    inference(cnf,[status(esa)],[14]) ).

thf(18,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ A @ B ) ) ),
    inference(simp,[status(thm)],[15]) ).

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

thf(20,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)],[4]) ).

thf(21,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)],[20]) ).

thf(24,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( difference @ A @ B ) )
      | ~ ( member @ C @ B ) ),
    inference(cnf,[status(esa)],[21]) ).

thf(76,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)],[18,24]) ).

thf(77,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ~ ( member @ A @ ( difference @ B @ ( union @ C @ D ) ) ) ),
    inference(pattern_uni,[status(thm)],[76:[bind(A,$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(91,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ~ ( member @ A @ ( difference @ B @ ( union @ C @ D ) ) ) ),
    inference(simp,[status(thm)],[77]) ).

thf(177,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)],[91]) ).

thf(181,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ( A != A )
      | ( ( difference @ B @ ( union @ C @ D ) )
       != C ) ),
    inference(simp,[status(thm)],[177]) ).

thf(185,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ( ( difference @ B @ ( union @ C @ D ) )
       != C ) ),
    inference(simp,[status(thm)],[181]) ).

thf(191,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)],[39,185]) ).

thf(192,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ D @ ( union @ A @ B ) )
       != B ) ),
    inference(pattern_uni,[status(thm)],[191:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( C )),bind(D,$thf( D )),bind(E,$thf( B )),bind(F,$thf( A ))]]) ).

thf(78,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)],[39,18]) ).

thf(79,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(pattern_uni,[status(thm)],[78:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(92,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(simp,[status(thm)],[79]) ).

thf(5,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equal_defn) ).

thf(26,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)],[5]) ).

thf(27,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)],[26]) ).

thf(28,plain,
    ! [B: $i,A: $i] :
      ( ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A )
      | ( A = B ) ),
    inference(cnf,[status(esa)],[27]) ).

thf(31,plain,
    ! [B: $i,A: $i] :
      ( ( A = B )
      | ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A ) ),
    inference(lifteq,[status(thm)],[28]) ).

thf(32,plain,
    ! [B: $i,A: $i] :
      ( ( A = B )
      | ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A ) ),
    inference(simp,[status(thm)],[31]) ).

thf(11,plain,
    ( ( difference @ ( union @ sk1 @ sk2 ) @ sk3 )
   != ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) ) ),
    inference(cnf,[status(esa)],[10]) ).

thf(12,plain,
    ( ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) )
   != ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) ),
    inference(lifteq,[status(thm)],[11]) ).

thf(568,plain,
    ! [B: $i,A: $i] :
      ( ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A )
      | ( B
       != ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) )
      | ( A
       != ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) ) ) ),
    inference(paramod_ordered,[status(thm)],[32,12]) ).

thf(569,plain,
    ! [A: $i] :
      ( ~ ( subset @ ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) ) @ A )
      | ~ ( subset @ A @ ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) ) )
      | ( A
       != ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) ) ),
    inference(pattern_uni,[status(thm)],[568:[bind(A,$thf( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) )),bind(B,$thf( B ))]]) ).

thf(742,plain,
    ( ~ ( subset @ ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) ) @ ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) )
    | ~ ( subset @ ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) @ ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ sk3 ) ) ) ),
    inference(simp,[status(thm)],[569]) ).

thf(96,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)],[39,19]) ).

thf(97,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(pattern_uni,[status(thm)],[96:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(109,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( member @ C @ ( union @ B @ A ) ) ),
    inference(simp,[status(thm)],[97]) ).

thf(69,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( member @ C @ ( difference @ A @ B ) )
       != ( member @ C @ B ) )
      | ~ $true ),
    inference(eqfactor_ordered,[status(thm)],[24]) ).

thf(71,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( C != C )
      | ( ( difference @ A @ B )
       != B ) ),
    inference(simp,[status(thm)],[69]) ).

thf(72,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ A @ B )
       != B ) ),
    inference(simp,[status(thm)],[71]) ).

thf(43,plain,
    ! [B: $i,A: $i] :
      ( ~ ( member @ ( sk4 @ B @ A ) @ B )
      | ( subset @ A @ B ) ),
    inference(cnf,[status(esa)],[41]) ).

thf(46,plain,
    ! [B: $i,A: $i] :
      ( ~ ( member @ ( sk4 @ B @ A ) @ B )
      | ( subset @ A @ B ) ),
    inference(simp,[status(thm)],[43]) ).

thf(221,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( subset @ D @ E )
      | ( ( member @ ( sk4 @ B @ C ) @ ( union @ A @ C ) )
       != ( member @ ( sk4 @ E @ D ) @ E ) ) ),
    inference(paramod_ordered,[status(thm)],[147,46]) ).

thf(222,plain,
    ! [B: $i,A: $i] :
      ( ( subset @ B @ ( union @ A @ B ) )
      | ( subset @ B @ ( union @ A @ B ) ) ),
    inference(pattern_uni,[status(thm)],[221:[bind(A,$thf( F )),bind(B,$thf( union @ F @ G )),bind(C,$thf( G )),bind(D,$thf( G )),bind(E,$thf( union @ F @ G ))]]) ).

thf(240,plain,
    ! [B: $i,A: $i] : ( subset @ B @ ( union @ A @ B ) ),
    inference(simp,[status(thm)],[222]) ).

thf(44,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( subset @ A @ B )
      | ~ ( member @ C @ A )
      | ( member @ C @ B ) ),
    inference(cnf,[status(esa)],[41]) ).

thf(1296,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ E @ C )
      | ( member @ E @ D )
      | ( ( subset @ B @ ( union @ A @ B ) )
       != ( subset @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[240,44]) ).

thf(1297,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ( member @ A @ ( union @ B @ C ) ) ),
    inference(pattern_uni,[status(thm)],[1296:[bind(A,$thf( F )),bind(B,$thf( G )),bind(C,$thf( G )),bind(D,$thf( union @ F @ G ))]]) ).

thf(1316,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ A @ C )
      | ( member @ A @ ( union @ B @ C ) ) ),
    inference(simp,[status(thm)],[1297]) ).

thf(189,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)],[39,185]) ).

thf(190,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( ( difference @ D @ ( union @ B @ A ) )
       != A ) ),
    inference(pattern_uni,[status(thm)],[189:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( C )),bind(D,$thf( D )),bind(E,$thf( A )),bind(F,$thf( B ))]]) ).

thf(372,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)],[45,190]) ).

thf(373,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ B @ ( union @ A @ D ) )
       != D ) ),
    inference(pattern_uni,[status(thm)],[372:[bind(A,$thf( H )),bind(B,$thf( G )),bind(C,$thf( H )),bind(D,$thf( D )),bind(E,$thf( sk4 @ G @ H ))]]) ).

thf(378,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ B @ ( union @ A @ D ) )
       != D ) ),
    inference(simp,[status(thm)],[373]) ).

thf(241,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ ( union @ B @ A ) )
      | ( ( union @ A @ B )
       != ( union @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[39,240]) ).

thf(242,plain,
    ! [B: $i,A: $i] : ( subset @ B @ ( union @ B @ A ) ),
    inference(pattern_uni,[status(thm)],[241:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( B ))]]) ).

thf(202,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ E @ D )
      | ( member @ ( sk4 @ D @ E ) @ ( union @ B @ A ) )
      | ( ( union @ A @ B )
       != ( union @ C @ E ) ) ),
    inference(paramod_ordered,[status(thm)],[39,147]) ).

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

thf(232,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ B @ C )
      | ( member @ ( sk4 @ C @ B ) @ ( union @ B @ A ) ) ),
    inference(simp,[status(thm)],[203]) ).

thf(22,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ B )
      | ( member @ C @ ( difference @ A @ B ) ) ),
    inference(cnf,[status(esa)],[21]) ).

thf(25,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ A )
      | ( member @ C @ B )
      | ( member @ C @ ( difference @ A @ B ) ) ),
    inference(simp,[status(thm)],[22]) ).

thf(139,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)],[45,72]) ).

thf(140,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( ( difference @ A @ C )
       != C ) ),
    inference(pattern_uni,[status(thm)],[139:[bind(A,$thf( G )),bind(B,$thf( F )),bind(C,$thf( C )),bind(D,$thf( G )),bind(E,$thf( sk4 @ F @ G ))]]) ).

thf(152,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( ( difference @ A @ C )
       != C ) ),
    inference(simp,[status(thm)],[140]) ).

thf(204,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ E @ D )
      | ( member @ ( sk4 @ D @ E ) @ ( union @ A @ B ) )
      | ( ( union @ B @ A )
       != ( union @ C @ E ) ) ),
    inference(paramod_ordered,[status(thm)],[39,147]) ).

thf(205,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ A @ C )
      | ( member @ ( sk4 @ C @ A ) @ ( union @ A @ B ) ) ),
    inference(pattern_uni,[status(thm)],[204:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( B )),bind(D,$thf( D )),bind(E,$thf( A ))]]) ).

thf(233,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ A @ C )
      | ( member @ ( sk4 @ C @ A ) @ ( union @ A @ B ) ) ),
    inference(simp,[status(thm)],[205]) ).

thf(197,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)],[45,185]) ).

thf(198,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ A @ ( union @ D @ B ) )
       != D ) ),
    inference(pattern_uni,[status(thm)],[197:[bind(A,$thf( H )),bind(B,$thf( G )),bind(C,$thf( sk4 @ G @ H )),bind(D,$thf( D )),bind(E,$thf( H ))]]) ).

thf(201,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( subset @ D @ C )
      | ( ( difference @ A @ ( union @ D @ B ) )
       != D ) ),
    inference(simp,[status(thm)],[198]) ).

thf(17,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( union @ A @ B ) )
      | ( member @ C @ A )
      | ( member @ C @ B ) ),
    inference(cnf,[status(esa)],[14]) ).

thf(29,plain,
    ! [B: $i,A: $i] :
      ( ( A != B )
      | ( subset @ A @ B ) ),
    inference(cnf,[status(esa)],[27]) ).

thf(33,plain,
    ! [B: $i,A: $i] :
      ( ( A != B )
      | ( subset @ A @ B ) ),
    inference(lifteq,[status(thm)],[29]) ).

thf(34,plain,
    ! [A: $i] : ( subset @ A @ A ),
    inference(simp,[status(thm)],[33]) ).

thf(576,plain,
    ! [B: $i,A: $i] :
      ( ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A )
      | ( ( union @ ( difference @ sk1 @ A ) @ ( difference @ sk2 @ sk3 ) )
       != ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) )
      | ( B != sk3 ) ),
    inference(paramod_ordered,[status(thm)],[32,12]) ).

thf(577,plain,
    ! [A: $i] :
      ( ~ ( subset @ A @ sk3 )
      | ~ ( subset @ sk3 @ A )
      | ( ( union @ ( difference @ sk1 @ A ) @ ( difference @ sk2 @ sk3 ) )
       != ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) ) ),
    inference(pattern_uni,[status(thm)],[576:[bind(A,$thf( A )),bind(B,$thf( sk3 ))]]) ).

thf(578,plain,
    ! [B: $i,A: $i] :
      ( ~ ( subset @ A @ B )
      | ~ ( subset @ B @ A )
      | ( ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ A ) )
       != ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) )
      | ( B != sk3 ) ),
    inference(paramod_ordered,[status(thm)],[32,12]) ).

thf(579,plain,
    ! [A: $i] :
      ( ~ ( subset @ A @ sk3 )
      | ~ ( subset @ sk3 @ A )
      | ( ( union @ ( difference @ sk1 @ sk3 ) @ ( difference @ sk2 @ A ) )
       != ( difference @ ( union @ sk1 @ sk2 ) @ sk3 ) ) ),
    inference(pattern_uni,[status(thm)],[578:[bind(A,$thf( A )),bind(B,$thf( sk3 ))]]) ).

thf(364,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)],[39,190]) ).

thf(365,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ D @ ( union @ B @ A ) )
       != B ) ),
    inference(pattern_uni,[status(thm)],[364:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( B )),bind(D,$thf( A ))]]) ).

thf(382,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ B )
      | ( ( difference @ D @ ( union @ B @ A ) )
       != B ) ),
    inference(simp,[status(thm)],[365]) ).

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

thf(49,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)],[9]) ).

thf(23,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( member @ C @ ( difference @ A @ B ) )
      | ( member @ C @ A ) ),
    inference(cnf,[status(esa)],[21]) ).

thf(137,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)],[45,18]) ).

thf(138,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ C @ A ) ) ),
    inference(pattern_uni,[status(thm)],[137:[bind(A,$thf( G )),bind(B,$thf( F )),bind(C,$thf( G )),bind(D,$thf( D )),bind(E,$thf( sk4 @ F @ G ))]]) ).

thf(151,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( subset @ C @ B )
      | ( member @ ( sk4 @ B @ C ) @ ( union @ C @ A ) ) ),
    inference(simp,[status(thm)],[138]) ).

thf(8,axiom,
    ! [A: $i] : ( subset @ A @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',reflexivity_of_subset) ).

thf(47,plain,
    ! [A: $i] : ( subset @ A @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(50,plain,
    ( ! [A: $i,B: $i] :
        ( ( A = B )
       => ( ! [C: $i] :
              ( ( member @ C @ A )
             => ( member @ C @ B ) )
          & ! [C: $i] :
              ( ( member @ C @ B )
             => ( member @ C @ A ) ) ) )
    & ! [A: $i,B: $i] :
        ( ( ! [C: $i] :
              ( ( member @ C @ A )
             => ( member @ C @ B ) )
          & ! [C: $i] :
              ( ( member @ C @ B )
             => ( member @ C @ A ) ) )
       => ( A = B ) ) ),
    inference(miniscope,[status(thm)],[49]) ).

thf(53,plain,
    ! [B: $i,A: $i] :
      ( ( member @ ( sk5 @ B @ A ) @ A )
      | ( member @ ( sk6 @ B @ A ) @ B )
      | ( A = B ) ),
    inference(cnf,[status(esa)],[50]) ).

thf(61,plain,
    ! [B: $i,A: $i] :
      ( ( A = B )
      | ( member @ ( sk5 @ B @ A ) @ A )
      | ( member @ ( sk6 @ B @ A ) @ B ) ),
    inference(lifteq,[status(thm)],[53]) ).

thf(62,plain,
    ! [B: $i,A: $i] :
      ( ( A = B )
      | ( member @ ( sk5 @ B @ A ) @ A )
      | ( member @ ( sk6 @ B @ A ) @ B ) ),
    inference(simp,[status(thm)],[61]) ).

thf(2512,plain,
    $false,
    inference(cvc4,[status(thm)],[10,147,192,92,742,109,13,39,18,72,1316,378,242,232,185,24,37,25,20,46,152,233,201,45,17,32,34,44,577,579,12,382,49,91,240,40,26,23,151,190,19,47,62]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : SET615+3 : TPTP v8.1.2. Released v2.2.0.
% 0.06/0.15  % Command  : run_Leo-III %s %d
% 0.14/0.35  % Computer : n011.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 300
% 0.14/0.35  % DateTime : Thu May 18 19:19:04 EDT 2023
% 0.14/0.36  % CPUTime  : 
% 0.91/0.83  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.22/0.95  % [INFO] 	 Parsing done (113ms). 
% 1.22/0.95  % [INFO] 	 Running in sequential loop mode. 
% 1.57/1.15  % [INFO] 	 eprover registered as external prover. 
% 1.57/1.16  % [INFO] 	 cvc4 registered as external prover. 
% 1.66/1.16  % [INFO] 	 Scanning for conjecture ... 
% 1.66/1.21  % [INFO] 	 Found a conjecture and 7 axioms. Running axiom selection ... 
% 1.85/1.23  % [INFO] 	 Axiom selection finished. Selected 7 axioms (removed 0 axioms). 
% 1.85/1.25  % [INFO] 	 Problem is first-order (TPTP FOF). 
% 1.85/1.25  % [INFO] 	 Type checking passed. 
% 1.85/1.25  % [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 ... 
% 11.32/3.15  % External prover 'cvc4' found a proof!
% 11.32/3.15  % [INFO] 	 Killing All external provers ... 
% 11.32/3.15  % Time passed: 2640ms (effective reasoning time: 2192ms)
% 11.32/3.15  % 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)>
% 11.32/3.15  % Axioms used in derivation (7): reflexivity_of_subset, equal_member_defn, equal_defn, difference_defn, commutativity_of_union, union_defn, subset_defn
% 11.32/3.15  % No. of inferences in proof: 108
% 11.32/3.15  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 2640 ms resp. 2192 ms w/o parsing
% 11.49/3.20  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 11.49/3.20  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------