TSTP Solution File: LCL549+1 by iProver---3.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.8
% Problem  : LCL549+1 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n013.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 : Thu Aug 31 07:44:59 EDT 2023

% Result   : Theorem 19.54s 3.68s
% Output   : CNFRefutation 19.54s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :   37
% Syntax   : Number of formulae    :  200 (  98 unt;   0 def)
%            Number of atoms       :  327 (  38 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :  220 (  93   ~;  86   |;   2   &)
%                                         (  14 <=>;  25  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   3 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :   21 (  19 usr;  19 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   1 con; 0-2 aty)
%            Number of variables   :  220 (   8 sgn; 113   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ( modus_ponens
  <=> ! [X0,X1] :
        ( ( is_a_theorem(implies(X0,X1))
          & is_a_theorem(X0) )
       => is_a_theorem(X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',modus_ponens) ).

fof(f2,axiom,
    ( substitution_of_equivalents
  <=> ! [X0,X1] :
        ( is_a_theorem(equiv(X0,X1))
       => X0 = X1 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',substitution_of_equivalents) ).

fof(f3,axiom,
    ( modus_tollens
  <=> ! [X0,X1] : is_a_theorem(implies(implies(not(X1),not(X0)),implies(X0,X1))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',modus_tollens) ).

fof(f4,axiom,
    ( implies_1
  <=> ! [X0,X1] : is_a_theorem(implies(X0,implies(X1,X0))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',implies_1) ).

fof(f5,axiom,
    ( implies_2
  <=> ! [X0,X1] : is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',implies_2) ).

fof(f7,axiom,
    ( and_1
  <=> ! [X0,X1] : is_a_theorem(implies(and(X0,X1),X0)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',and_1) ).

fof(f9,axiom,
    ( and_3
  <=> ! [X0,X1] : is_a_theorem(implies(X0,implies(X1,and(X0,X1)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',and_3) ).

fof(f10,axiom,
    ( or_1
  <=> ! [X0,X1] : is_a_theorem(implies(X0,or(X0,X1))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',or_1) ).

fof(f15,axiom,
    ( equivalence_3
  <=> ! [X0,X1] : is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equivalence_3) ).

fof(f27,axiom,
    ( op_or
   => ! [X0,X1] : or(X0,X1) = not(and(not(X0),not(X1))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_or) ).

fof(f29,axiom,
    ( op_implies_and
   => ! [X0,X1] : implies(X0,X1) = not(and(X0,not(X1))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_implies_and) ).

fof(f33,axiom,
    op_implies_and,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_op_implies_and) ).

fof(f35,axiom,
    modus_ponens,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_modus_ponens) ).

fof(f36,axiom,
    modus_tollens,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_modus_tollens) ).

fof(f37,axiom,
    implies_1,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_implies_1) ).

fof(f38,axiom,
    implies_2,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_implies_2) ).

fof(f40,axiom,
    and_1,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_and_1) ).

fof(f42,axiom,
    and_3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_and_3) ).

fof(f43,axiom,
    or_1,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_or_1) ).

fof(f48,axiom,
    equivalence_3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',hilbert_equivalence_3) ).

fof(f49,axiom,
    substitution_of_equivalents,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',substitution_of_equivalents) ).

fof(f50,axiom,
    ( necessitation
  <=> ! [X0] :
        ( is_a_theorem(X0)
       => is_a_theorem(necessarily(X0)) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',necessitation) ).

fof(f55,axiom,
    ( axiom_M
  <=> ! [X0] : is_a_theorem(implies(necessarily(X0),X0)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_M) ).

fof(f56,axiom,
    ( axiom_4
  <=> ! [X0] : is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_4) ).

fof(f57,axiom,
    ( axiom_B
  <=> ! [X0] : is_a_theorem(implies(X0,necessarily(possibly(X0)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_B) ).

fof(f72,axiom,
    ( axiom_m10
  <=> ! [X0] : is_a_theorem(strict_implies(possibly(X0),necessarily(possibly(X0)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_m10) ).

fof(f73,axiom,
    ( op_possibly
   => ! [X0] : possibly(X0) = not(necessarily(not(X0))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_possibly) ).

fof(f75,axiom,
    ( op_strict_implies
   => ! [X0,X1] : strict_implies(X0,X1) = necessarily(implies(X0,X1)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_strict_implies) ).

fof(f78,axiom,
    necessitation,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',km4b_necessitation) ).

fof(f80,axiom,
    axiom_M,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',km4b_axiom_M) ).

fof(f81,axiom,
    axiom_4,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',km4b_axiom_4) ).

fof(f82,axiom,
    axiom_B,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',km4b_axiom_B) ).

fof(f83,axiom,
    op_possibly,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',s1_0_op_possibly) ).

fof(f84,axiom,
    op_or,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',s1_0_op_or) ).

fof(f86,axiom,
    op_strict_implies,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',s1_0_op_strict_implies) ).

fof(f89,conjecture,
    axiom_m10,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',s1_0_m10_axiom_m10) ).

fof(f90,negated_conjecture,
    ~ axiom_m10,
    inference(negated_conjecture,[],[f89]) ).

fof(f105,plain,
    ~ axiom_m10,
    inference(flattening,[],[f90]) ).

fof(f106,plain,
    ( ! [X0] : is_a_theorem(strict_implies(possibly(X0),necessarily(possibly(X0))))
   => axiom_m10 ),
    inference(unused_predicate_definition_removal,[],[f72]) ).

fof(f107,plain,
    ( axiom_B
   => ! [X0] : is_a_theorem(implies(X0,necessarily(possibly(X0)))) ),
    inference(unused_predicate_definition_removal,[],[f57]) ).

fof(f108,plain,
    ( axiom_4
   => ! [X0] : is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0)))) ),
    inference(unused_predicate_definition_removal,[],[f56]) ).

fof(f109,plain,
    ( axiom_M
   => ! [X0] : is_a_theorem(implies(necessarily(X0),X0)) ),
    inference(unused_predicate_definition_removal,[],[f55]) ).

fof(f111,plain,
    ( necessitation
   => ! [X0] :
        ( is_a_theorem(X0)
       => is_a_theorem(necessarily(X0)) ) ),
    inference(unused_predicate_definition_removal,[],[f50]) ).

fof(f112,plain,
    ( equivalence_3
   => ! [X0,X1] : is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1)))) ),
    inference(unused_predicate_definition_removal,[],[f15]) ).

fof(f117,plain,
    ( or_1
   => ! [X0,X1] : is_a_theorem(implies(X0,or(X0,X1))) ),
    inference(unused_predicate_definition_removal,[],[f10]) ).

fof(f118,plain,
    ( and_3
   => ! [X0,X1] : is_a_theorem(implies(X0,implies(X1,and(X0,X1)))) ),
    inference(unused_predicate_definition_removal,[],[f9]) ).

fof(f120,plain,
    ( and_1
   => ! [X0,X1] : is_a_theorem(implies(and(X0,X1),X0)) ),
    inference(unused_predicate_definition_removal,[],[f7]) ).

fof(f122,plain,
    ( implies_2
   => ! [X0,X1] : is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1))) ),
    inference(unused_predicate_definition_removal,[],[f5]) ).

fof(f123,plain,
    ( implies_1
   => ! [X0,X1] : is_a_theorem(implies(X0,implies(X1,X0))) ),
    inference(unused_predicate_definition_removal,[],[f4]) ).

fof(f124,plain,
    ( modus_tollens
   => ! [X0,X1] : is_a_theorem(implies(implies(not(X1),not(X0)),implies(X0,X1))) ),
    inference(unused_predicate_definition_removal,[],[f3]) ).

fof(f125,plain,
    ( substitution_of_equivalents
   => ! [X0,X1] :
        ( is_a_theorem(equiv(X0,X1))
       => X0 = X1 ) ),
    inference(unused_predicate_definition_removal,[],[f2]) ).

fof(f126,plain,
    ( modus_ponens
   => ! [X0,X1] :
        ( ( is_a_theorem(implies(X0,X1))
          & is_a_theorem(X0) )
       => is_a_theorem(X1) ) ),
    inference(unused_predicate_definition_removal,[],[f1]) ).

fof(f131,plain,
    ( ! [X0,X1] :
        ( is_a_theorem(X1)
        | ~ is_a_theorem(implies(X0,X1))
        | ~ is_a_theorem(X0) )
    | ~ modus_ponens ),
    inference(ennf_transformation,[],[f126]) ).

fof(f132,plain,
    ( ! [X0,X1] :
        ( is_a_theorem(X1)
        | ~ is_a_theorem(implies(X0,X1))
        | ~ is_a_theorem(X0) )
    | ~ modus_ponens ),
    inference(flattening,[],[f131]) ).

fof(f133,plain,
    ( ! [X0,X1] :
        ( X0 = X1
        | ~ is_a_theorem(equiv(X0,X1)) )
    | ~ substitution_of_equivalents ),
    inference(ennf_transformation,[],[f125]) ).

fof(f134,plain,
    ( ! [X0,X1] : is_a_theorem(implies(implies(not(X1),not(X0)),implies(X0,X1)))
    | ~ modus_tollens ),
    inference(ennf_transformation,[],[f124]) ).

fof(f135,plain,
    ( ! [X0,X1] : is_a_theorem(implies(X0,implies(X1,X0)))
    | ~ implies_1 ),
    inference(ennf_transformation,[],[f123]) ).

fof(f136,plain,
    ( ! [X0,X1] : is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1)))
    | ~ implies_2 ),
    inference(ennf_transformation,[],[f122]) ).

fof(f138,plain,
    ( ! [X0,X1] : is_a_theorem(implies(and(X0,X1),X0))
    | ~ and_1 ),
    inference(ennf_transformation,[],[f120]) ).

fof(f140,plain,
    ( ! [X0,X1] : is_a_theorem(implies(X0,implies(X1,and(X0,X1))))
    | ~ and_3 ),
    inference(ennf_transformation,[],[f118]) ).

fof(f141,plain,
    ( ! [X0,X1] : is_a_theorem(implies(X0,or(X0,X1)))
    | ~ or_1 ),
    inference(ennf_transformation,[],[f117]) ).

fof(f146,plain,
    ( ! [X0,X1] : is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1))))
    | ~ equivalence_3 ),
    inference(ennf_transformation,[],[f112]) ).

fof(f147,plain,
    ( ! [X0,X1] : or(X0,X1) = not(and(not(X0),not(X1)))
    | ~ op_or ),
    inference(ennf_transformation,[],[f27]) ).

fof(f148,plain,
    ( ! [X0,X1] : implies(X0,X1) = not(and(X0,not(X1)))
    | ~ op_implies_and ),
    inference(ennf_transformation,[],[f29]) ).

fof(f150,plain,
    ( ! [X0] :
        ( is_a_theorem(necessarily(X0))
        | ~ is_a_theorem(X0) )
    | ~ necessitation ),
    inference(ennf_transformation,[],[f111]) ).

fof(f152,plain,
    ( ! [X0] : is_a_theorem(implies(necessarily(X0),X0))
    | ~ axiom_M ),
    inference(ennf_transformation,[],[f109]) ).

fof(f153,plain,
    ( ! [X0] : is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0))))
    | ~ axiom_4 ),
    inference(ennf_transformation,[],[f108]) ).

fof(f154,plain,
    ( ! [X0] : is_a_theorem(implies(X0,necessarily(possibly(X0))))
    | ~ axiom_B ),
    inference(ennf_transformation,[],[f107]) ).

fof(f155,plain,
    ( axiom_m10
    | ? [X0] : ~ is_a_theorem(strict_implies(possibly(X0),necessarily(possibly(X0)))) ),
    inference(ennf_transformation,[],[f106]) ).

fof(f156,plain,
    ( ! [X0] : possibly(X0) = not(necessarily(not(X0)))
    | ~ op_possibly ),
    inference(ennf_transformation,[],[f73]) ).

fof(f157,plain,
    ( ! [X0,X1] : strict_implies(X0,X1) = necessarily(implies(X0,X1))
    | ~ op_strict_implies ),
    inference(ennf_transformation,[],[f75]) ).

fof(f159,plain,
    ( ? [X0] : ~ is_a_theorem(strict_implies(possibly(X0),necessarily(possibly(X0))))
   => ~ is_a_theorem(strict_implies(possibly(sK0),necessarily(possibly(sK0)))) ),
    introduced(choice_axiom,[]) ).

fof(f160,plain,
    ( axiom_m10
    | ~ is_a_theorem(strict_implies(possibly(sK0),necessarily(possibly(sK0)))) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f155,f159]) ).

fof(f161,plain,
    ! [X0,X1] :
      ( is_a_theorem(X1)
      | ~ is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(X0)
      | ~ modus_ponens ),
    inference(cnf_transformation,[],[f132]) ).

fof(f162,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ is_a_theorem(equiv(X0,X1))
      | ~ substitution_of_equivalents ),
    inference(cnf_transformation,[],[f133]) ).

fof(f163,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(implies(not(X1),not(X0)),implies(X0,X1)))
      | ~ modus_tollens ),
    inference(cnf_transformation,[],[f134]) ).

fof(f164,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X0,implies(X1,X0)))
      | ~ implies_1 ),
    inference(cnf_transformation,[],[f135]) ).

fof(f165,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1)))
      | ~ implies_2 ),
    inference(cnf_transformation,[],[f136]) ).

fof(f167,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(and(X0,X1),X0))
      | ~ and_1 ),
    inference(cnf_transformation,[],[f138]) ).

fof(f169,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X0,implies(X1,and(X0,X1))))
      | ~ and_3 ),
    inference(cnf_transformation,[],[f140]) ).

fof(f170,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X0,or(X0,X1)))
      | ~ or_1 ),
    inference(cnf_transformation,[],[f141]) ).

fof(f175,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1))))
      | ~ equivalence_3 ),
    inference(cnf_transformation,[],[f146]) ).

fof(f176,plain,
    ! [X0,X1] :
      ( or(X0,X1) = not(and(not(X0),not(X1)))
      | ~ op_or ),
    inference(cnf_transformation,[],[f147]) ).

fof(f177,plain,
    ! [X0,X1] :
      ( implies(X0,X1) = not(and(X0,not(X1)))
      | ~ op_implies_and ),
    inference(cnf_transformation,[],[f148]) ).

fof(f180,plain,
    op_implies_and,
    inference(cnf_transformation,[],[f33]) ).

fof(f182,plain,
    modus_ponens,
    inference(cnf_transformation,[],[f35]) ).

fof(f183,plain,
    modus_tollens,
    inference(cnf_transformation,[],[f36]) ).

fof(f184,plain,
    implies_1,
    inference(cnf_transformation,[],[f37]) ).

fof(f185,plain,
    implies_2,
    inference(cnf_transformation,[],[f38]) ).

fof(f187,plain,
    and_1,
    inference(cnf_transformation,[],[f40]) ).

fof(f189,plain,
    and_3,
    inference(cnf_transformation,[],[f42]) ).

fof(f190,plain,
    or_1,
    inference(cnf_transformation,[],[f43]) ).

fof(f195,plain,
    equivalence_3,
    inference(cnf_transformation,[],[f48]) ).

fof(f196,plain,
    substitution_of_equivalents,
    inference(cnf_transformation,[],[f49]) ).

fof(f197,plain,
    ! [X0] :
      ( is_a_theorem(necessarily(X0))
      | ~ is_a_theorem(X0)
      | ~ necessitation ),
    inference(cnf_transformation,[],[f150]) ).

fof(f199,plain,
    ! [X0] :
      ( is_a_theorem(implies(necessarily(X0),X0))
      | ~ axiom_M ),
    inference(cnf_transformation,[],[f152]) ).

fof(f200,plain,
    ! [X0] :
      ( is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0))))
      | ~ axiom_4 ),
    inference(cnf_transformation,[],[f153]) ).

fof(f201,plain,
    ! [X0] :
      ( is_a_theorem(implies(X0,necessarily(possibly(X0))))
      | ~ axiom_B ),
    inference(cnf_transformation,[],[f154]) ).

fof(f202,plain,
    ( axiom_m10
    | ~ is_a_theorem(strict_implies(possibly(sK0),necessarily(possibly(sK0)))) ),
    inference(cnf_transformation,[],[f160]) ).

fof(f203,plain,
    ! [X0] :
      ( possibly(X0) = not(necessarily(not(X0)))
      | ~ op_possibly ),
    inference(cnf_transformation,[],[f156]) ).

fof(f204,plain,
    ! [X0,X1] :
      ( strict_implies(X0,X1) = necessarily(implies(X0,X1))
      | ~ op_strict_implies ),
    inference(cnf_transformation,[],[f157]) ).

fof(f207,plain,
    necessitation,
    inference(cnf_transformation,[],[f78]) ).

fof(f209,plain,
    axiom_M,
    inference(cnf_transformation,[],[f80]) ).

fof(f210,plain,
    axiom_4,
    inference(cnf_transformation,[],[f81]) ).

fof(f211,plain,
    axiom_B,
    inference(cnf_transformation,[],[f82]) ).

fof(f212,plain,
    op_possibly,
    inference(cnf_transformation,[],[f83]) ).

fof(f213,plain,
    op_or,
    inference(cnf_transformation,[],[f84]) ).

fof(f214,plain,
    op_strict_implies,
    inference(cnf_transformation,[],[f86]) ).

fof(f217,plain,
    ~ axiom_m10,
    inference(cnf_transformation,[],[f105]) ).

cnf(c_49,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | ~ is_a_theorem(X0)
    | ~ modus_ponens
    | is_a_theorem(X1) ),
    inference(cnf_transformation,[],[f161]) ).

cnf(c_50,plain,
    ( ~ is_a_theorem(equiv(X0,X1))
    | ~ substitution_of_equivalents
    | X0 = X1 ),
    inference(cnf_transformation,[],[f162]) ).

cnf(c_51,plain,
    ( ~ modus_tollens
    | is_a_theorem(implies(implies(not(X0),not(X1)),implies(X1,X0))) ),
    inference(cnf_transformation,[],[f163]) ).

cnf(c_52,plain,
    ( ~ implies_1
    | is_a_theorem(implies(X0,implies(X1,X0))) ),
    inference(cnf_transformation,[],[f164]) ).

cnf(c_53,plain,
    ( ~ implies_2
    | is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1))) ),
    inference(cnf_transformation,[],[f165]) ).

cnf(c_55,plain,
    ( ~ and_1
    | is_a_theorem(implies(and(X0,X1),X0)) ),
    inference(cnf_transformation,[],[f167]) ).

cnf(c_57,plain,
    ( ~ and_3
    | is_a_theorem(implies(X0,implies(X1,and(X0,X1)))) ),
    inference(cnf_transformation,[],[f169]) ).

cnf(c_58,plain,
    ( ~ or_1
    | is_a_theorem(implies(X0,or(X0,X1))) ),
    inference(cnf_transformation,[],[f170]) ).

cnf(c_63,plain,
    ( ~ equivalence_3
    | is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1)))) ),
    inference(cnf_transformation,[],[f175]) ).

cnf(c_64,plain,
    ( ~ op_or
    | not(and(not(X0),not(X1))) = or(X0,X1) ),
    inference(cnf_transformation,[],[f176]) ).

cnf(c_65,plain,
    ( ~ op_implies_and
    | not(and(X0,not(X1))) = implies(X0,X1) ),
    inference(cnf_transformation,[],[f177]) ).

cnf(c_68,plain,
    op_implies_and,
    inference(cnf_transformation,[],[f180]) ).

cnf(c_70,plain,
    modus_ponens,
    inference(cnf_transformation,[],[f182]) ).

cnf(c_71,plain,
    modus_tollens,
    inference(cnf_transformation,[],[f183]) ).

cnf(c_72,plain,
    implies_1,
    inference(cnf_transformation,[],[f184]) ).

cnf(c_73,plain,
    implies_2,
    inference(cnf_transformation,[],[f185]) ).

cnf(c_75,plain,
    and_1,
    inference(cnf_transformation,[],[f187]) ).

cnf(c_77,plain,
    and_3,
    inference(cnf_transformation,[],[f189]) ).

cnf(c_78,plain,
    or_1,
    inference(cnf_transformation,[],[f190]) ).

cnf(c_83,plain,
    equivalence_3,
    inference(cnf_transformation,[],[f195]) ).

cnf(c_84,plain,
    substitution_of_equivalents,
    inference(cnf_transformation,[],[f196]) ).

cnf(c_85,plain,
    ( ~ is_a_theorem(X0)
    | ~ necessitation
    | is_a_theorem(necessarily(X0)) ),
    inference(cnf_transformation,[],[f197]) ).

cnf(c_87,plain,
    ( ~ axiom_M
    | is_a_theorem(implies(necessarily(X0),X0)) ),
    inference(cnf_transformation,[],[f199]) ).

cnf(c_88,plain,
    ( ~ axiom_4
    | is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0)))) ),
    inference(cnf_transformation,[],[f200]) ).

cnf(c_89,plain,
    ( ~ axiom_B
    | is_a_theorem(implies(X0,necessarily(possibly(X0)))) ),
    inference(cnf_transformation,[],[f201]) ).

cnf(c_90,plain,
    ( ~ is_a_theorem(strict_implies(possibly(sK0),necessarily(possibly(sK0))))
    | axiom_m10 ),
    inference(cnf_transformation,[],[f202]) ).

cnf(c_91,plain,
    ( ~ op_possibly
    | not(necessarily(not(X0))) = possibly(X0) ),
    inference(cnf_transformation,[],[f203]) ).

cnf(c_92,plain,
    ( ~ op_strict_implies
    | necessarily(implies(X0,X1)) = strict_implies(X0,X1) ),
    inference(cnf_transformation,[],[f204]) ).

cnf(c_95,plain,
    necessitation,
    inference(cnf_transformation,[],[f207]) ).

cnf(c_97,plain,
    axiom_M,
    inference(cnf_transformation,[],[f209]) ).

cnf(c_98,plain,
    axiom_4,
    inference(cnf_transformation,[],[f210]) ).

cnf(c_99,plain,
    axiom_B,
    inference(cnf_transformation,[],[f211]) ).

cnf(c_100,plain,
    op_possibly,
    inference(cnf_transformation,[],[f212]) ).

cnf(c_101,plain,
    op_or,
    inference(cnf_transformation,[],[f213]) ).

cnf(c_102,plain,
    op_strict_implies,
    inference(cnf_transformation,[],[f214]) ).

cnf(c_105,negated_conjecture,
    ~ axiom_m10,
    inference(cnf_transformation,[],[f217]) ).

cnf(c_131,plain,
    is_a_theorem(implies(necessarily(X0),X0)),
    inference(global_subsumption_just,[status(thm)],[c_87,c_97,c_87]) ).

cnf(c_134,plain,
    is_a_theorem(implies(X0,necessarily(possibly(X0)))),
    inference(global_subsumption_just,[status(thm)],[c_89,c_99,c_89]) ).

cnf(c_137,plain,
    ( ~ is_a_theorem(X0)
    | is_a_theorem(necessarily(X0)) ),
    inference(global_subsumption_just,[status(thm)],[c_85,c_95,c_85]) ).

cnf(c_143,plain,
    is_a_theorem(implies(X0,or(X0,X1))),
    inference(global_subsumption_just,[status(thm)],[c_58,c_78,c_58]) ).

cnf(c_148,plain,
    is_a_theorem(implies(and(X0,X1),X0)),
    inference(global_subsumption_just,[status(thm)],[c_55,c_75,c_55]) ).

cnf(c_150,plain,
    is_a_theorem(implies(X0,implies(X1,X0))),
    inference(global_subsumption_just,[status(thm)],[c_52,c_72,c_52]) ).

cnf(c_153,plain,
    ~ is_a_theorem(strict_implies(possibly(sK0),necessarily(possibly(sK0)))),
    inference(global_subsumption_just,[status(thm)],[c_90,c_105,c_90]) ).

cnf(c_155,plain,
    is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0)))),
    inference(global_subsumption_just,[status(thm)],[c_88,c_98,c_88]) ).

cnf(c_158,plain,
    not(necessarily(not(X0))) = possibly(X0),
    inference(global_subsumption_just,[status(thm)],[c_91,c_100,c_91]) ).

cnf(c_166,plain,
    is_a_theorem(implies(X0,implies(X1,and(X0,X1)))),
    inference(global_subsumption_just,[status(thm)],[c_57,c_77,c_57]) ).

cnf(c_169,plain,
    necessarily(implies(X0,X1)) = strict_implies(X0,X1),
    inference(global_subsumption_just,[status(thm)],[c_92,c_102,c_92]) ).

cnf(c_172,plain,
    ( ~ is_a_theorem(equiv(X0,X1))
    | X0 = X1 ),
    inference(global_subsumption_just,[status(thm)],[c_50,c_84,c_50]) ).

cnf(c_175,plain,
    not(and(X0,not(X1))) = implies(X0,X1),
    inference(global_subsumption_just,[status(thm)],[c_65,c_68,c_65]) ).

cnf(c_178,plain,
    is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1))),
    inference(global_subsumption_just,[status(thm)],[c_53,c_73,c_53]) ).

cnf(c_181,plain,
    is_a_theorem(implies(implies(not(X0),not(X1)),implies(X1,X0))),
    inference(global_subsumption_just,[status(thm)],[c_51,c_71,c_51]) ).

cnf(c_184,plain,
    ( ~ is_a_theorem(X0)
    | ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(X1) ),
    inference(global_subsumption_just,[status(thm)],[c_49,c_70,c_49]) ).

cnf(c_185,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | ~ is_a_theorem(X0)
    | is_a_theorem(X1) ),
    inference(renaming,[status(thm)],[c_184]) ).

cnf(c_189,plain,
    not(and(not(X0),not(X1))) = or(X0,X1),
    inference(global_subsumption_just,[status(thm)],[c_64,c_101,c_64]) ).

cnf(c_198,plain,
    is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1)))),
    inference(global_subsumption_just,[status(thm)],[c_63,c_83,c_63]) ).

cnf(c_328,plain,
    implies(not(X0),X1) = or(X0,X1),
    inference(demodulation,[status(thm)],[c_189,c_175]) ).

cnf(c_409,plain,
    is_a_theorem(implies(or(X0,not(X1)),implies(X1,X0))),
    inference(demodulation,[status(thm)],[c_181,c_328]) ).

cnf(c_2431,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(strict_implies(X0,X1)) ),
    inference(superposition,[status(thm)],[c_169,c_137]) ).

cnf(c_2436,plain,
    implies(X0,necessarily(not(X1))) = not(and(X0,possibly(X1))),
    inference(superposition,[status(thm)],[c_158,c_175]) ).

cnf(c_2444,plain,
    ( ~ is_a_theorem(implies(X0,implies(X0,X1)))
    | is_a_theorem(implies(X0,X1)) ),
    inference(superposition,[status(thm)],[c_178,c_185]) ).

cnf(c_2461,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | is_a_theorem(implies(implies(X1,X0),equiv(X0,X1))) ),
    inference(superposition,[status(thm)],[c_198,c_185]) ).

cnf(c_2507,plain,
    is_a_theorem(or(X0,or(not(X0),X1))),
    inference(superposition,[status(thm)],[c_328,c_143]) ).

cnf(c_2518,plain,
    ( ~ is_a_theorem(or(X0,not(X1)))
    | is_a_theorem(implies(X1,X0)) ),
    inference(superposition,[status(thm)],[c_409,c_185]) ).

cnf(c_2541,plain,
    is_a_theorem(strict_implies(X0,necessarily(possibly(X0)))),
    inference(superposition,[status(thm)],[c_134,c_2431]) ).

cnf(c_2557,plain,
    is_a_theorem(implies(necessarily(not(X0)),not(and(X1,possibly(X0))))),
    inference(superposition,[status(thm)],[c_2436,c_150]) ).

cnf(c_2632,plain,
    is_a_theorem(implies(X0,and(X0,X0))),
    inference(superposition,[status(thm)],[c_166,c_2444]) ).

cnf(c_2689,plain,
    ( ~ is_a_theorem(implies(X0,X1))
    | ~ is_a_theorem(implies(X1,X0))
    | is_a_theorem(equiv(X0,X1)) ),
    inference(superposition,[status(thm)],[c_2461,c_185]) ).

cnf(c_5323,plain,
    ( ~ is_a_theorem(implies(necessarily(necessarily(X0)),necessarily(X0)))
    | is_a_theorem(equiv(necessarily(necessarily(X0)),necessarily(X0))) ),
    inference(superposition,[status(thm)],[c_155,c_2689]) ).

cnf(c_5372,plain,
    ( ~ is_a_theorem(implies(and(X0,X0),X0))
    | is_a_theorem(equiv(and(X0,X0),X0)) ),
    inference(superposition,[status(thm)],[c_2632,c_2689]) ).

cnf(c_5382,plain,
    is_a_theorem(equiv(and(X0,X0),X0)),
    inference(forward_subsumption_resolution,[status(thm)],[c_5372,c_148]) ).

cnf(c_5383,plain,
    is_a_theorem(equiv(necessarily(necessarily(X0)),necessarily(X0))),
    inference(forward_subsumption_resolution,[status(thm)],[c_5323,c_131]) ).

cnf(c_5796,plain,
    and(X0,X0) = X0,
    inference(superposition,[status(thm)],[c_5382,c_172]) ).

cnf(c_5825,plain,
    implies(not(X0),X0) = not(not(X0)),
    inference(superposition,[status(thm)],[c_5796,c_175]) ).

cnf(c_5861,plain,
    is_a_theorem(implies(necessarily(not(X0)),not(possibly(X0)))),
    inference(superposition,[status(thm)],[c_5796,c_2557]) ).

cnf(c_5893,plain,
    or(X0,X0) = not(not(X0)),
    inference(demodulation,[status(thm)],[c_5825,c_328]) ).

cnf(c_5974,plain,
    necessarily(necessarily(X0)) = necessarily(X0),
    inference(superposition,[status(thm)],[c_5383,c_172]) ).

cnf(c_6903,plain,
    is_a_theorem(or(X0,not(not(not(X0))))),
    inference(superposition,[status(thm)],[c_5893,c_2507]) ).

cnf(c_7763,plain,
    is_a_theorem(implies(not(not(X0)),X0)),
    inference(superposition,[status(thm)],[c_6903,c_2518]) ).

cnf(c_7764,plain,
    is_a_theorem(or(not(X0),X0)),
    inference(demodulation,[status(thm)],[c_7763,c_328]) ).

cnf(c_7808,plain,
    is_a_theorem(or(possibly(X0),necessarily(not(X0)))),
    inference(superposition,[status(thm)],[c_158,c_7764]) ).

cnf(c_8593,plain,
    ( ~ is_a_theorem(implies(not(possibly(X0)),necessarily(not(X0))))
    | is_a_theorem(equiv(not(possibly(X0)),necessarily(not(X0)))) ),
    inference(superposition,[status(thm)],[c_5861,c_2689]) ).

cnf(c_8603,plain,
    ( ~ is_a_theorem(or(possibly(X0),necessarily(not(X0))))
    | is_a_theorem(equiv(not(possibly(X0)),necessarily(not(X0)))) ),
    inference(demodulation,[status(thm)],[c_8593,c_328]) ).

cnf(c_8604,plain,
    is_a_theorem(equiv(not(possibly(X0)),necessarily(not(X0)))),
    inference(forward_subsumption_resolution,[status(thm)],[c_8603,c_7808]) ).

cnf(c_9442,plain,
    not(possibly(X0)) = necessarily(not(X0)),
    inference(superposition,[status(thm)],[c_8604,c_172]) ).

cnf(c_10254,plain,
    necessarily(not(possibly(X0))) = not(possibly(X0)),
    inference(superposition,[status(thm)],[c_9442,c_5974]) ).

cnf(c_10298,plain,
    not(not(possibly(X0))) = possibly(X0),
    inference(superposition,[status(thm)],[c_9442,c_158]) ).

cnf(c_10321,plain,
    not(possibly(possibly(X0))) = not(possibly(X0)),
    inference(demodulation,[status(thm)],[c_10254,c_9442]) ).

cnf(c_17988,plain,
    not(not(possibly(X0))) = possibly(possibly(X0)),
    inference(superposition,[status(thm)],[c_10321,c_10298]) ).

cnf(c_18033,plain,
    possibly(possibly(X0)) = possibly(X0),
    inference(demodulation,[status(thm)],[c_17988,c_10298]) ).

cnf(c_18532,plain,
    is_a_theorem(strict_implies(possibly(X0),necessarily(possibly(X0)))),
    inference(superposition,[status(thm)],[c_18033,c_2541]) ).

cnf(c_18666,plain,
    $false,
    inference(superposition,[status(thm)],[c_18532,c_153]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : LCL549+1 : TPTP v8.1.2. Released v3.3.0.
% 0.00/0.13  % Command  : run_iprover %s %d THM
% 0.12/0.33  % Computer : n013.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % 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 : Fri Aug 25 00:35:47 EDT 2023
% 0.12/0.33  % CPUTime  : 
% 0.18/0.46  Running first-order theorem proving
% 0.18/0.46  Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 19.54/3.68  % SZS status Started for theBenchmark.p
% 19.54/3.68  % SZS status Theorem for theBenchmark.p
% 19.54/3.68  
% 19.54/3.68  %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 19.54/3.68  
% 19.54/3.68  ------  iProver source info
% 19.54/3.68  
% 19.54/3.68  git: date: 2023-05-31 18:12:56 +0000
% 19.54/3.68  git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 19.54/3.68  git: non_committed_changes: false
% 19.54/3.68  git: last_make_outside_of_git: false
% 19.54/3.68  
% 19.54/3.68  ------ Parsing...
% 19.54/3.68  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 19.54/3.68  
% 19.54/3.68  ------ Preprocessing... sup_sim: 2  sf_s  rm: 28 0s  sf_e  pe_s  pe_e  sup_sim: 1  sf_s  rm: 1 0s  sf_e  pe_s  pe_e 
% 19.54/3.68  
% 19.54/3.68  ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e 
% 19.54/3.68  
% 19.54/3.68  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 19.54/3.68  ------ Proving...
% 19.54/3.68  ------ Problem Properties 
% 19.54/3.68  
% 19.54/3.68  
% 19.54/3.68  clauses                                 27
% 19.54/3.68  conjectures                             0
% 19.54/3.68  EPR                                     0
% 19.54/3.68  Horn                                    27
% 19.54/3.68  unary                                   24
% 19.54/3.68  binary                                  2
% 19.54/3.68  lits                                    31
% 19.54/3.68  lits eq                                 7
% 19.54/3.68  fd_pure                                 0
% 19.54/3.68  fd_pseudo                               0
% 19.54/3.68  fd_cond                                 0
% 19.54/3.68  fd_pseudo_cond                          1
% 19.54/3.68  AC symbols                              0
% 19.54/3.68  
% 19.54/3.68  ------ Input Options Time Limit: Unbounded
% 19.54/3.68  
% 19.54/3.68  
% 19.54/3.68  ------ 
% 19.54/3.68  Current options:
% 19.54/3.68  ------ 
% 19.54/3.68  
% 19.54/3.68  
% 19.54/3.68  
% 19.54/3.68  
% 19.54/3.68  ------ Proving...
% 19.54/3.68  
% 19.54/3.68  
% 19.54/3.68  % SZS status Theorem for theBenchmark.p
% 19.54/3.68  
% 19.54/3.68  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 19.54/3.68  
% 19.54/3.69  
%------------------------------------------------------------------------------