TSTP Solution File: SET980+1 by Leo-III---1.7.7

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%------------------------------------------------------------------------------
% File     : Leo-III---1.7.7
% Problem  : SET980+1 : TPTP v8.1.2. Bugfixed v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n010.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 11:54:58 EDT 2023

% Result   : Theorem 3.28s 1.79s
% Output   : Refutation 3.33s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :   19
% Syntax   : Number of formulae    :   33 (  13 unt;   7 typ;   0 def)
%            Number of atoms       :   64 (  33 equ;   0 cnn)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  157 (  11   ~;   9   |;  10   &; 108   @)
%                                         (   4 <=>;  15  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   6 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   10 (  10   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    9 (   7 usr;   2 con; 0-2 aty)
%            Number of variables   :   55 (   0   ^;  51   !;   4   ?;  55   :)

% Comments : 
%------------------------------------------------------------------------------
thf(cartesian_product2_type,type,
    cartesian_product2: $i > $i > $i ).

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

thf(in_type,type,
    in: $i > $i > $o ).

thf(unordered_pair_type,type,
    unordered_pair: $i > $i > $i ).

thf(ordered_pair_type,type,
    ordered_pair: $i > $i > $i ).

thf(singleton_type,type,
    singleton: $i > $i ).

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

thf(4,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(25,plain,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(1,conjecture,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( cartesian_product2 @ A @ B )
        = ( cartesian_product2 @ C @ D ) )
     => ( ( A = empty_set )
        | ( B = empty_set )
        | ( ( A = C )
          & ( B = D ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t134_zfmisc_1) ).

thf(2,negated_conjecture,
    ~ ! [A: $i,B: $i,C: $i,D: $i] :
        ( ( ( cartesian_product2 @ A @ B )
          = ( cartesian_product2 @ C @ D ) )
       => ( ( A = empty_set )
          | ( B = empty_set )
          | ( ( A = C )
            & ( B = D ) ) ) ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(14,plain,
    ~ ! [A: $i,B: $i,C: $i,D: $i] :
        ( ( ( cartesian_product2 @ A @ B )
          = ( cartesian_product2 @ C @ D ) )
       => ( ( A = empty_set )
          | ( B = empty_set )
          | ( ( A = C )
            & ( B = D ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(5,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

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

thf(13,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( in @ C @ A )
        <=> ( in @ C @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_tarski) ).

thf(64,plain,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( ( in @ C @ A )
           => ( in @ C @ B ) )
          & ( ( in @ C @ B )
           => ( in @ C @ A ) ) )
     => ( A = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).

thf(7,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(39,plain,
    empty @ empty_set,
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(9,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(43,plain,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
       => ( ( in @ A @ C )
          & ( in @ B @ D ) ) )
      & ( ( ( in @ A @ C )
          & ( in @ B @ D ) )
       => ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

thf(12,axiom,
    ! [A: $i,B: $i] :
      ( ( ( cartesian_product2 @ A @ B )
        = empty_set )
    <=> ( ( A = empty_set )
        | ( B = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t113_zfmisc_1) ).

thf(54,plain,
    ! [A: $i,B: $i] :
      ( ( ( ( cartesian_product2 @ A @ B )
          = empty_set )
       => ( ( A = empty_set )
          | ( B = empty_set ) ) )
      & ( ( ( A = empty_set )
          | ( B = empty_set ) )
       => ( ( cartesian_product2 @ A @ B )
          = empty_set ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[12]) ).

thf(10,axiom,
    ? [A: $i] : ( empty @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_xboole_0) ).

thf(49,plain,
    ? [A: $i] : ( empty @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(8,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(40,plain,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(3,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(23,plain,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ( ( ordered_pair @ A @ B )
      = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_tarski) ).

thf(36,plain,
    ! [A: $i,B: $i] :
      ( ( ordered_pair @ A @ B )
      = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(11,axiom,
    ? [A: $i] :
      ~ ( empty @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_xboole_0) ).

thf(51,plain,
    ? [A: $i] :
      ~ ( empty @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).

thf(78,plain,
    $false,
    inference(e,[status(thm)],[25,14,28,64,39,43,54,49,40,23,36,51]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : SET980+1 : TPTP v8.1.2. Bugfixed v4.0.0.
% 0.11/0.15  % Command  : run_Leo-III %s %d
% 0.14/0.35  % Computer : n010.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 19:00:42 EDT 2023
% 0.14/0.35  % CPUTime  : 
% 1.00/0.90  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.28/1.03  % [INFO] 	 Parsing done (131ms). 
% 1.28/1.04  % [INFO] 	 Running in sequential loop mode. 
% 1.71/1.24  % [INFO] 	 eprover registered as external prover. 
% 1.71/1.24  % [INFO] 	 cvc4 registered as external prover. 
% 1.71/1.25  % [INFO] 	 Scanning for conjecture ... 
% 1.71/1.30  % [INFO] 	 Found a conjecture and 11 axioms. Running axiom selection ... 
% 1.95/1.32  % [INFO] 	 Axiom selection finished. Selected 11 axioms (removed 0 axioms). 
% 1.95/1.34  % [INFO] 	 Problem is first-order (TPTP FOF). 
% 1.95/1.34  % [INFO] 	 Type checking passed. 
% 1.95/1.35  % [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 ... 
% 3.28/1.79  % External prover 'e' found a proof!
% 3.28/1.79  % [INFO] 	 Killing All external provers ... 
% 3.28/1.79  % Time passed: 1284ms (effective reasoning time: 751ms)
% 3.28/1.79  % 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)>
% 3.28/1.79  % Axioms used in derivation (11): fc1_zfmisc_1, d1_xboole_0, t2_tarski, commutativity_k2_tarski, l55_zfmisc_1, rc1_xboole_0, rc2_xboole_0, antisymmetry_r2_hidden, fc1_xboole_0, t113_zfmisc_1, d5_tarski
% 3.28/1.79  % No. of inferences in proof: 26
% 3.28/1.79  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1284 ms resp. 751 ms w/o parsing
% 3.33/1.84  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 3.33/1.84  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------