TSTP Solution File: LCL542+1 by Metis---2.4

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%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : LCL542+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n020.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  : 600s
% DateTime : Sun Jul 17 12:53:01 EDT 2022

% Result   : Theorem 0.19s 0.47s
% Output   : CNFRefutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :   11
% Syntax   : Number of formulae    :   51 (  25 unt;   0 def)
%            Number of atoms       :   92 (  16 equ)
%            Maximal formula atoms :    7 (   1 avg)
%            Number of connectives :   78 (  37   ~;  28   |;   5   &)
%                                         (   6 <=>;   2  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   3 avg)
%            Maximal term depth    :    4 (   2 avg)
%            Number of predicates  :    8 (   5 usr;   5 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   5 con; 0-2 aty)
%            Number of variables   :   57 (   5 sgn  19   !;   5   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(and_1,axiom,
    ( and_1
  <=> ! [X,Y] : is_a_theorem(implies(and(X,Y),X)) ) ).

fof(hilbert_and_1,axiom,
    and_1 ).

fof(necessitation,axiom,
    ( necessitation
  <=> ! [X] :
        ( is_a_theorem(X)
       => is_a_theorem(necessarily(X)) ) ) ).

fof(axiom_m2,axiom,
    ( axiom_m2
  <=> ! [X,Y] : is_a_theorem(strict_implies(and(X,Y),X)) ) ).

fof(op_strict_implies,axiom,
    ( op_strict_implies
   => ! [X,Y] : strict_implies(X,Y) = necessarily(implies(X,Y)) ) ).

fof(km4b_necessitation,axiom,
    necessitation ).

fof(s1_0_op_strict_implies,axiom,
    op_strict_implies ).

fof(s1_0_axiom_m2,conjecture,
    axiom_m2 ).

fof(subgoal_0,plain,
    axiom_m2,
    inference(strip,[],[s1_0_axiom_m2]) ).

fof(negate_0_0,plain,
    ~ axiom_m2,
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ( ~ axiom_m2
  <=> ? [X,Y] : ~ is_a_theorem(strict_implies(and(X,Y),X)) ),
    inference(canonicalize,[],[axiom_m2]) ).

fof(normalize_0_1,plain,
    ! [X,Y] :
      ( ( ~ axiom_m2
        | is_a_theorem(strict_implies(and(X,Y),X)) )
      & ( ~ is_a_theorem(strict_implies(and(skolemFOFtoCNF_X_28,skolemFOFtoCNF_Y_22),skolemFOFtoCNF_X_28))
        | axiom_m2 ) ),
    inference(clausify,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ( ~ is_a_theorem(strict_implies(and(skolemFOFtoCNF_X_28,skolemFOFtoCNF_Y_22),skolemFOFtoCNF_X_28))
    | axiom_m2 ),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ~ axiom_m2,
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_4,plain,
    ( ~ necessitation
  <=> ? [X] :
        ( ~ is_a_theorem(necessarily(X))
        & is_a_theorem(X) ) ),
    inference(canonicalize,[],[necessitation]) ).

fof(normalize_0_5,plain,
    ! [X] :
      ( ( ~ is_a_theorem(necessarily(skolemFOFtoCNF_X_15))
        | necessitation )
      & ( is_a_theorem(skolemFOFtoCNF_X_15)
        | necessitation )
      & ( ~ is_a_theorem(X)
        | ~ necessitation
        | is_a_theorem(necessarily(X)) ) ),
    inference(clausify,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    ! [X] :
      ( ~ is_a_theorem(X)
      | ~ necessitation
      | is_a_theorem(necessarily(X)) ),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    necessitation,
    inference(canonicalize,[],[km4b_necessitation]) ).

fof(normalize_0_8,plain,
    ( ~ and_1
  <=> ? [X,Y] : ~ is_a_theorem(implies(and(X,Y),X)) ),
    inference(canonicalize,[],[and_1]) ).

fof(normalize_0_9,plain,
    ! [X,Y] :
      ( ( ~ and_1
        | is_a_theorem(implies(and(X,Y),X)) )
      & ( ~ is_a_theorem(implies(and(skolemFOFtoCNF_X_6,skolemFOFtoCNF_Y_6),skolemFOFtoCNF_X_6))
        | and_1 ) ),
    inference(clausify,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    ! [X,Y] :
      ( ~ and_1
      | is_a_theorem(implies(and(X,Y),X)) ),
    inference(conjunct,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    and_1,
    inference(canonicalize,[],[hilbert_and_1]) ).

fof(normalize_0_12,plain,
    ( ~ op_strict_implies
    | ! [X,Y] : strict_implies(X,Y) = necessarily(implies(X,Y)) ),
    inference(canonicalize,[],[op_strict_implies]) ).

fof(normalize_0_13,plain,
    ! [X,Y] :
      ( ~ op_strict_implies
      | strict_implies(X,Y) = necessarily(implies(X,Y)) ),
    inference(clausify,[],[normalize_0_12]) ).

fof(normalize_0_14,plain,
    op_strict_implies,
    inference(canonicalize,[],[s1_0_op_strict_implies]) ).

cnf(refute_0_0,plain,
    ( ~ is_a_theorem(strict_implies(and(skolemFOFtoCNF_X_28,skolemFOFtoCNF_Y_22),skolemFOFtoCNF_X_28))
    | axiom_m2 ),
    inference(canonicalize,[],[normalize_0_2]) ).

cnf(refute_0_1,plain,
    ~ axiom_m2,
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_2,plain,
    ~ is_a_theorem(strict_implies(and(skolemFOFtoCNF_X_28,skolemFOFtoCNF_Y_22),skolemFOFtoCNF_X_28)),
    inference(resolve,[$cnf( axiom_m2 )],[refute_0_0,refute_0_1]) ).

cnf(refute_0_3,plain,
    ( ~ is_a_theorem(X)
    | ~ necessitation
    | is_a_theorem(necessarily(X)) ),
    inference(canonicalize,[],[normalize_0_6]) ).

cnf(refute_0_4,plain,
    necessitation,
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_5,plain,
    ( ~ is_a_theorem(X)
    | is_a_theorem(necessarily(X)) ),
    inference(resolve,[$cnf( necessitation )],[refute_0_4,refute_0_3]) ).

cnf(refute_0_6,plain,
    ( ~ is_a_theorem(implies(and(X_35,X_36),X_35))
    | is_a_theorem(necessarily(implies(and(X_35,X_36),X_35))) ),
    inference(subst,[],[refute_0_5:[bind(X,$fot(implies(and(X_35,X_36),X_35)))]]) ).

cnf(refute_0_7,plain,
    ( ~ and_1
    | is_a_theorem(implies(and(X,Y),X)) ),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_8,plain,
    and_1,
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_9,plain,
    is_a_theorem(implies(and(X,Y),X)),
    inference(resolve,[$cnf( and_1 )],[refute_0_8,refute_0_7]) ).

cnf(refute_0_10,plain,
    is_a_theorem(implies(and(X_35,X_36),X_35)),
    inference(subst,[],[refute_0_9:[bind(X,$fot(X_35)),bind(Y,$fot(X_36))]]) ).

cnf(refute_0_11,plain,
    is_a_theorem(necessarily(implies(and(X_35,X_36),X_35))),
    inference(resolve,[$cnf( is_a_theorem(implies(and(X_35,X_36),X_35)) )],[refute_0_10,refute_0_6]) ).

cnf(refute_0_12,plain,
    ( ~ op_strict_implies
    | strict_implies(X,Y) = necessarily(implies(X,Y)) ),
    inference(canonicalize,[],[normalize_0_13]) ).

cnf(refute_0_13,plain,
    op_strict_implies,
    inference(canonicalize,[],[normalize_0_14]) ).

cnf(refute_0_14,plain,
    strict_implies(X,Y) = necessarily(implies(X,Y)),
    inference(resolve,[$cnf( op_strict_implies )],[refute_0_13,refute_0_12]) ).

cnf(refute_0_15,plain,
    X0 = X0,
    introduced(tautology,[refl,[$fot(X0)]]) ).

cnf(refute_0_16,plain,
    ( X0 != X0
    | X0 != Y0
    | Y0 = X0 ),
    introduced(tautology,[equality,[$cnf( $equal(X0,X0) ),[0],$fot(Y0)]]) ).

cnf(refute_0_17,plain,
    ( X0 != Y0
    | Y0 = X0 ),
    inference(resolve,[$cnf( $equal(X0,X0) )],[refute_0_15,refute_0_16]) ).

cnf(refute_0_18,plain,
    ( strict_implies(X,Y) != necessarily(implies(X,Y))
    | necessarily(implies(X,Y)) = strict_implies(X,Y) ),
    inference(subst,[],[refute_0_17:[bind(X0,$fot(strict_implies(X,Y))),bind(Y0,$fot(necessarily(implies(X,Y))))]]) ).

cnf(refute_0_19,plain,
    necessarily(implies(X,Y)) = strict_implies(X,Y),
    inference(resolve,[$cnf( $equal(strict_implies(X,Y),necessarily(implies(X,Y))) )],[refute_0_14,refute_0_18]) ).

cnf(refute_0_20,plain,
    necessarily(implies(and(X_35,X_36),X_35)) = strict_implies(and(X_35,X_36),X_35),
    inference(subst,[],[refute_0_19:[bind(X,$fot(and(X_35,X_36))),bind(Y,$fot(X_35))]]) ).

cnf(refute_0_21,plain,
    ( necessarily(implies(and(X_35,X_36),X_35)) != strict_implies(and(X_35,X_36),X_35)
    | ~ is_a_theorem(necessarily(implies(and(X_35,X_36),X_35)))
    | is_a_theorem(strict_implies(and(X_35,X_36),X_35)) ),
    introduced(tautology,[equality,[$cnf( is_a_theorem(necessarily(implies(and(X_35,X_36),X_35))) ),[0],$fot(strict_implies(and(X_35,X_36),X_35))]]) ).

cnf(refute_0_22,plain,
    ( ~ is_a_theorem(necessarily(implies(and(X_35,X_36),X_35)))
    | is_a_theorem(strict_implies(and(X_35,X_36),X_35)) ),
    inference(resolve,[$cnf( $equal(necessarily(implies(and(X_35,X_36),X_35)),strict_implies(and(X_35,X_36),X_35)) )],[refute_0_20,refute_0_21]) ).

cnf(refute_0_23,plain,
    is_a_theorem(strict_implies(and(X_35,X_36),X_35)),
    inference(resolve,[$cnf( is_a_theorem(necessarily(implies(and(X_35,X_36),X_35))) )],[refute_0_11,refute_0_22]) ).

cnf(refute_0_24,plain,
    is_a_theorem(strict_implies(and(skolemFOFtoCNF_X_28,skolemFOFtoCNF_Y_22),skolemFOFtoCNF_X_28)),
    inference(subst,[],[refute_0_23:[bind(X_35,$fot(skolemFOFtoCNF_X_28)),bind(X_36,$fot(skolemFOFtoCNF_Y_22))]]) ).

cnf(refute_0_25,plain,
    $false,
    inference(resolve,[$cnf( is_a_theorem(strict_implies(and(skolemFOFtoCNF_X_28,skolemFOFtoCNF_Y_22),skolemFOFtoCNF_X_28)) )],[refute_0_24,refute_0_2]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : LCL542+1 : TPTP v8.1.0. Released v3.3.0.
% 0.03/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.34  % Computer : n020.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Sat Jul  2 16:42:00 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.19/0.47  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.19/0.47  
% 0.19/0.47  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 0.19/0.48  
%------------------------------------------------------------------------------