TSTP Solution File: SET600+3 by Leo-III---1.7.12

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%------------------------------------------------------------------------------
% File     : Leo-III---1.7.12
% Problem  : SET600+3 : TPTP v8.2.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n019.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 : Tue May 21 03:03:05 EDT 2024

% Result   : Theorem 3.72s 2.33s
% Output   : Refutation 4.00s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :   14
% Syntax   : Number of formulae    :   25 (   7 unt;   5 typ;   0 def)
%            Number of atoms       :   65 (  20 equ;   0 cnn)
%            Maximal formula atoms :   10 (   3 avg)
%            Number of connectives :  159 (   7   ~;   3   |;  15   &; 107   @)
%                                         (   8 <=>;  19  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   6 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    7 (   7   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    7 (   5 usr;   2 con; 0-2 aty)
%            Number of variables   :   43 (   0   ^  43   !;   0   ?;  43   :)

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

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

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

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

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

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

thf(56,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)],[9]) ).

thf(10,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(61,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)],[10]) ).

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(33,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(6,axiom,
    ! [A: $i,B: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_of_union) ).

thf(44,plain,
    ! [A: $i,B: $i] :
      ( ( union @ A @ B )
      = ( union @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

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

thf(54,plain,
    ! [A: $i] : ( subset @ A @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(1,conjecture,
    ! [A: $i,B: $i] :
      ( ( ( union @ A @ B )
        = empty_set )
    <=> ( ( A = empty_set )
        & ( B = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_th59) ).

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

thf(11,plain,
    ~ ! [A: $i,B: $i] :
        ( ( ( ( union @ A @ B )
            = empty_set )
         => ( ( A = empty_set )
            & ( B = empty_set ) ) )
        & ( ( ( A = empty_set )
            & ( B = empty_set ) )
         => ( ( union @ A @ B )
            = empty_set ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

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(23,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(4,axiom,
    ! [A: $i] :
      ~ ( member @ A @ empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',empty_set_defn) ).

thf(30,plain,
    ! [A: $i] :
      ~ ( member @ A @ empty_set ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

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(47,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(81,plain,
    $false,
    inference(e,[status(thm)],[56,61,33,44,54,11,23,30,47]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.02/0.10  % Problem  : SET600+3 : TPTP v8.2.0. Released v2.2.0.
% 0.02/0.12  % Command  : run_Leo-III %s %d
% 0.12/0.32  % Computer : n019.cluster.edu
% 0.12/0.32  % Model    : x86_64 x86_64
% 0.12/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.32  % Memory   : 8042.1875MB
% 0.12/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Mon May 20 11:31:39 EDT 2024
% 0.12/0.33  % CPUTime  : 
% 1.00/0.95  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.26/1.11  % [INFO] 	 Parsing done (158ms). 
% 1.26/1.12  % [INFO] 	 Running in sequential loop mode. 
% 1.83/1.48  % [INFO] 	 eprover registered as external prover. 
% 1.83/1.48  % [INFO] 	 cvc4 registered as external prover. 
% 1.91/1.49  % [INFO] 	 Scanning for conjecture ... 
% 2.02/1.58  % [INFO] 	 Found a conjecture (or negated_conjecture) and 8 axioms. Running axiom selection ... 
% 2.02/1.61  % [INFO] 	 Axiom selection finished. Selected 8 axioms (removed 0 axioms). 
% 2.17/1.64  % [INFO] 	 Problem is first-order (TPTP FOF). 
% 2.17/1.64  % [INFO] 	 Type checking passed. 
% 2.17/1.64  % [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 ... 
% 3.72/2.32  % External prover 'e' found a proof!
% 3.72/2.32  % [INFO] 	 Killing All external provers ... 
% 3.72/2.32  % Time passed: 1843ms (effective reasoning time: 1192ms)
% 3.72/2.32  % 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)>
% 3.72/2.32  % Axioms used in derivation (8): reflexivity_of_subset, equal_member_defn, empty_set_defn, empty_defn, commutativity_of_union, equal_defn, union_defn, subset_defn
% 3.72/2.32  % No. of inferences in proof: 20
% 3.72/2.33  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1843 ms resp. 1192 ms w/o parsing
% 4.00/2.38  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 4.00/2.38  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------