TSTP Solution File: SET635+3 by Leo-III---1.7.7

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%------------------------------------------------------------------------------
% File     : Leo-III---1.7.7
% Problem  : SET635+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n009.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 11:53:54 EDT 2023

% Result   : Theorem 3.50s 1.77s
% Output   : Refutation 3.50s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :   23
% Syntax   : Number of formulae    :   41 (  20 unt;   7 typ;   0 def)
%            Number of atoms       :   81 (  22 equ;   0 cnn)
%            Maximal formula atoms :   10 (   2 avg)
%            Number of connectives :  278 (  10   ~;   0   |;  18   &; 221   @)
%                                         (   8 <=>;  21  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   6 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   11 (  11   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    9 (   7 usr;   2 con; 0-2 aty)
%            Number of variables   :   78 (   0   ^;  78   !;   0   ?;  78   :)

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

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

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

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

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

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

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

thf(9,axiom,
    ! [A: $i] :
      ( ( union @ A @ empty_set )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',union_empty_set) ).

thf(69,plain,
    ! [A: $i] :
      ( ( union @ A @ empty_set )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

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

thf(42,plain,
    ! [A: $i] :
      ( ( ( empty @ A )
       => ! [B: $i] :
            ~ ( member @ B @ A ) )
      & ( ! [B: $i] :
            ~ ( member @ B @ A )
       => ( empty @ A ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(12,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( member @ C @ ( intersection @ A @ B ) )
    <=> ( ( member @ C @ A )
        & ( member @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',intersection_defn) ).

thf(78,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)],[12]) ).

thf(13,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( intersection @ A @ ( difference @ B @ C ) )
      = ( difference @ ( intersection @ A @ B ) @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',difference_and_intersection) ).

thf(84,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( intersection @ A @ ( difference @ B @ C ) )
      = ( difference @ ( intersection @ A @ B ) @ C ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).

thf(3,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equal_defn) ).

thf(21,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)],[3]) ).

thf(16,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(97,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)],[16]) ).

thf(4,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(32,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)],[4]) ).

thf(5,axiom,
    ! [A: $i] :
      ~ ( member @ A @ empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',empty_set_defn) ).

thf(39,plain,
    ! [A: $i] :
      ~ ( member @ A @ empty_set ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(17,axiom,
    ! [A: $i,B: $i] : ( subset @ ( intersection @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',intersection_is_subset) ).

thf(103,plain,
    ! [A: $i,B: $i] : ( subset @ ( intersection @ A @ B ) @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).

thf(1,conjecture,
    ! [A: $i,B: $i,C: $i] :
      ( ( intersection @ A @ ( difference @ B @ C ) )
      = ( difference @ ( intersection @ A @ B ) @ ( intersection @ A @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_th117) ).

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

thf(18,plain,
    ~ ! [A: $i,B: $i,C: $i] :
        ( ( intersection @ A @ ( difference @ B @ C ) )
        = ( difference @ ( intersection @ A @ B ) @ ( intersection @ A @ C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

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

thf(67,plain,
    ! [A: $i] : ( subset @ A @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(10,axiom,
    ! [A: $i,B: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_of_union) ).

thf(72,plain,
    ! [A: $i,B: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(14,axiom,
    ! [A: $i,B: $i] :
      ( ( ( difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',difference_empty_set) ).

thf(87,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( difference @ A @ B )
          = empty_set )
       => ( subset @ A @ B ) )
      & ( ( subset @ A @ B )
       => ( ( difference @ A @ B )
          = empty_set ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[14]) ).

thf(11,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( difference @ A @ ( intersection @ B @ C ) )
      = ( union @ ( difference @ A @ B ) @ ( difference @ A @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',difference_and_intersection_and_union) ).

thf(75,plain,
    ! [A: $i,B: $i,C: $i] :
      ( ( difference @ A @ ( intersection @ B @ C ) )
      = ( union @ ( difference @ A @ B ) @ ( difference @ A @ C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).

thf(15,axiom,
    ! [A: $i,B: $i] :
      ( ( intersection @ A @ B )
      = ( intersection @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_of_intersection) ).

thf(94,plain,
    ! [A: $i,B: $i] :
      ( ( intersection @ A @ B )
      = ( intersection @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[15]) ).

thf(7,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(47,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)],[7]) ).

thf(105,plain,
    $false,
    inference(e,[status(thm)],[69,42,78,84,21,97,32,39,103,18,67,72,87,75,94,47]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET635+3 : TPTP v8.1.2. Released v2.2.0.
% 0.07/0.15  % Command  : run_Leo-III %s %d
% 0.14/0.35  % Computer : n009.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 19:00:18 EDT 2023
% 0.14/0.36  % CPUTime  : 
% 0.90/0.84  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.21/0.96  % [INFO] 	 Parsing done (122ms). 
% 1.21/0.97  % [INFO] 	 Running in sequential loop mode. 
% 1.69/1.17  % [INFO] 	 eprover registered as external prover. 
% 1.69/1.17  % [INFO] 	 cvc4 registered as external prover. 
% 1.69/1.17  % [INFO] 	 Scanning for conjecture ... 
% 1.69/1.23  % [INFO] 	 Found a conjecture and 15 axioms. Running axiom selection ... 
% 1.88/1.26  % [INFO] 	 Axiom selection finished. Selected 15 axioms (removed 0 axioms). 
% 1.99/1.29  % [INFO] 	 Problem is first-order (TPTP FOF). 
% 1.99/1.29  % [INFO] 	 Type checking passed. 
% 1.99/1.29  % [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 ... 
% 3.50/1.76  % External prover 'e' found a proof!
% 3.50/1.76  % [INFO] 	 Killing All external provers ... 
% 3.50/1.77  % Time passed: 1246ms (effective reasoning time: 791ms)
% 3.50/1.77  % 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)>
% 3.50/1.77  % Axioms used in derivation (15): reflexivity_of_subset, equal_member_defn, empty_defn, difference_and_intersection_and_union, equal_defn, difference_and_intersection, subset_defn, intersection_defn, empty_set_defn, difference_empty_set, commutativity_of_intersection, difference_defn, commutativity_of_union, union_empty_set, intersection_is_subset
% 3.50/1.77  % No. of inferences in proof: 34
% 3.50/1.77  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1246 ms resp. 791 ms w/o parsing
% 3.50/1.80  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 3.50/1.81  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------