TSTP Solution File: LCL146-1 by Leo-III---1.7.7

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%------------------------------------------------------------------------------
% File     : Leo-III---1.7.7
% Problem  : LCL146-1 : TPTP v8.1.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n001.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 11:29:30 EDT 2023

% Result   : Unsatisfiable 2.71s 1.63s
% Output   : Refutation 2.71s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    2
%            Number of leaves      :   17
% Syntax   : Number of formulae    :   27 (  15 unt;   8 typ;   0 def)
%            Number of atoms       :   23 (  18 equ;   0 cnn)
%            Maximal formula atoms :    2 (   1 avg)
%            Number of connectives :  122 (   6   ~;   4   |;   0   &; 112   @)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    9 (   9   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   10 (   8 usr;   4 con; 0-2 aty)
%            Number of variables   :   32 (   0   ^;  32   !;   0   ?;  32   :)

% Comments : 
%------------------------------------------------------------------------------
thf(not_type,type,
    not: $i > $i ).

thf(big_hat_type,type,
    big_hat: $i > $i > $i ).

thf(x_type,type,
    x: $i ).

thf(y_type,type,
    y: $i ).

thf(big_V_type,type,
    big_V: $i > $i > $i ).

thf(implies_type,type,
    implies: $i > $i > $i ).

thf(truth_type,type,
    truth: $i ).

thf(ordered_type,type,
    ordered: $i > $i > $o ).

thf(1,negated_conjecture,
    ( ( not @ ( big_hat @ x @ y ) )
   != ( big_V @ ( not @ x ) @ ( not @ y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_wajsberg_theorem) ).

thf(10,plain,
    ( ( not @ ( big_hat @ x @ y ) )
   != ( big_V @ ( not @ x ) @ ( not @ y ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).

thf(8,axiom,
    ! [B: $i,A: $i] :
      ( ~ ( ordered @ A @ B )
      | ( ( implies @ A @ B )
        = truth ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',partial_order_definition1) ).

thf(25,plain,
    ! [B: $i,A: $i] :
      ( ~ ( ordered @ A @ B )
      | ( ( implies @ A @ B )
        = truth ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(2,axiom,
    ! [A: $i] :
      ( ( implies @ truth @ A )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',wajsberg_1) ).

thf(13,plain,
    ! [A: $i] :
      ( ( implies @ truth @ A )
      = A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(4,axiom,
    ! [B: $i,A: $i] :
      ( ( implies @ ( implies @ A @ B ) @ B )
      = ( implies @ ( implies @ B @ A ) @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',wajsberg_3) ).

thf(17,plain,
    ! [B: $i,A: $i] :
      ( ( implies @ ( implies @ A @ B ) @ B )
      = ( implies @ ( implies @ B @ A ) @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(7,axiom,
    ! [B: $i,A: $i] :
      ( ( big_hat @ A @ B )
      = ( not @ ( big_V @ ( not @ A ) @ ( not @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',big_hat_definition) ).

thf(23,plain,
    ! [B: $i,A: $i] :
      ( ( big_hat @ A @ B )
      = ( not @ ( big_V @ ( not @ A ) @ ( not @ B ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(5,axiom,
    ! [B: $i,A: $i] :
      ( ( implies @ ( implies @ ( not @ A ) @ ( not @ B ) ) @ ( implies @ B @ A ) )
      = truth ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',wajsberg_4) ).

thf(19,plain,
    ! [B: $i,A: $i] :
      ( ( implies @ ( implies @ ( not @ A ) @ ( not @ B ) ) @ ( implies @ B @ A ) )
      = truth ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(3,axiom,
    ! [C: $i,B: $i,A: $i] :
      ( ( implies @ ( implies @ A @ B ) @ ( implies @ ( implies @ B @ C ) @ ( implies @ A @ C ) ) )
      = truth ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',wajsberg_2) ).

thf(15,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( implies @ ( implies @ A @ B ) @ ( implies @ ( implies @ B @ C ) @ ( implies @ A @ C ) ) )
      = truth ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(9,axiom,
    ! [B: $i,A: $i] :
      ( ( ( implies @ A @ B )
       != truth )
      | ( ordered @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',partial_order_definition2) ).

thf(28,plain,
    ! [B: $i,A: $i] :
      ( ( ( implies @ A @ B )
       != truth )
      | ( ordered @ A @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

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

thf(21,plain,
    ! [B: $i,A: $i] :
      ( ( big_V @ A @ B )
      = ( implies @ ( implies @ A @ B ) @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(31,plain,
    $false,
    inference(e,[status(thm)],[10,25,13,17,23,19,15,28,21]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : LCL146-1 : TPTP v8.1.2. Released v1.0.0.
% 0.15/0.16  % Command  : run_Leo-III %s %d
% 0.16/0.36  % Computer : n001.cluster.edu
% 0.16/0.36  % Model    : x86_64 x86_64
% 0.16/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.36  % Memory   : 8042.1875MB
% 0.16/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.36  % CPULimit : 300
% 0.16/0.36  % WCLimit  : 300
% 0.16/0.36  % DateTime : Thu May 18 16:35:35 EDT 2023
% 0.21/0.36  % CPUTime  : 
% 0.91/0.86  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.22/0.98  % [INFO] 	 Parsing done (119ms). 
% 1.22/0.99  % [INFO] 	 Running in sequential loop mode. 
% 1.62/1.20  % [INFO] 	 eprover registered as external prover. 
% 1.62/1.21  % [INFO] 	 cvc4 registered as external prover. 
% 1.62/1.21  % [INFO] 	 Scanning for conjecture ... 
% 1.79/1.26  % [INFO] 	 Found a conjecture and 8 axioms. Running axiom selection ... 
% 1.79/1.28  % [INFO] 	 Axiom selection finished. Selected 8 axioms (removed 0 axioms). 
% 1.79/1.30  % [INFO] 	 Problem is propositional (TPTP CNF). 
% 1.79/1.30  % [INFO] 	 Type checking passed. 
% 1.79/1.30  % [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 ... 
% 2.71/1.62  % External prover 'e' found a proof!
% 2.71/1.62  % [INFO] 	 Killing All external provers ... 
% 2.71/1.63  % Time passed: 1107ms (effective reasoning time: 638ms)
% 2.71/1.63  % 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)>
% 2.71/1.63  % Axioms used in derivation (8): partial_order_definition1, wajsberg_3, big_V_definition, wajsberg_1, big_hat_definition, wajsberg_2, partial_order_definition2, wajsberg_4
% 2.71/1.63  % No. of inferences in proof: 19
% 2.71/1.63  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1107 ms resp. 638 ms w/o parsing
% 2.71/1.67  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 2.71/1.67  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------