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Drodi---4.1.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : Drodi---4.1.1
% Problem  : LCL548+1 : TPTP v9.3.1. Bugfixed v9.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Sep 24 01:07:58 PM UTC 2026

% Result   : Theorem 7.95s 1.54s
% Output   : CNFRefutation 7.95s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   19
%            Number of leaves      :   90
% Syntax   : Number of formulae    :  334 (  62 unt;  48 def)
%            Number of atoms       :  948 (  49 equ)
%            Maximal formula atoms :   19 (   2 avg)
%            Number of connectives : 1086 ( 472   ~; 492   |;  46   &)
%                                         (  68 <=>;   8  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   20 (   4 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :   73 (  71 usr;  71 prp; 0-2 aty)
%            Number of functors    :   38 (  38 usr;  30 con; 0-2 aty)
%            Number of variables   :  304 ( 272   !;  32   ?)

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

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

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

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

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

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

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

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

fof(f11,axiom,
    ( or_2
  <=> ! [X,Y] : is_a_theorem(implies(Y,or(X,Y))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f12,axiom,
    ( or_3
  <=> ! [X,Y,Z] : is_a_theorem(implies(implies(X,Z),implies(implies(Y,Z),implies(or(X,Y),Z)))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

fof(f16,axiom,
    ( kn1
  <=> ! [P] : is_a_theorem(implies(P,and(P,P))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f24,axiom,
    ( r3
  <=> ! [P,Q] : is_a_theorem(implies(or(P,Q),or(Q,P))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

fof(f31,axiom,
    ( op_equiv
   => ! [X,Y] : equiv(X,Y) = and(implies(X,Y),implies(Y,X)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f32,axiom,
    op_or,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

fof(f34,axiom,
    op_equiv,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

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

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

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

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

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

fof(f44,axiom,
    or_2,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f45,axiom,
    or_3,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

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

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

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

fof(f71,axiom,
    ( axiom_m9
  <=> ! [X] : is_a_theorem(strict_implies(possibly(possibly(X)),possibly(X))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

fof(f77,axiom,
    op_possibly,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

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

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

fof(f89,conjecture,
    axiom_m9,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f90,negated_conjecture,
    ~ axiom_m9,
    inference(negated_conjecture,[status(cth)],[f89]) ).

fof(f91,plain,
    ( modus_ponens
  <=> ! [X,Y] :
        ( is_a_theorem(Y)
        | ~ is_a_theorem(implies(X,Y))
        | ~ is_a_theorem(X) ) ),
    inference(pre_NNF_transformation,[status(thm)],[f1]) ).

fof(f92,plain,
    ( ( ? [X,Y] :
          ( ~ is_a_theorem(Y)
          & is_a_theorem(implies(X,Y))
          & is_a_theorem(X) )
      | modus_ponens )
    & ( ! [X,Y] :
          ( is_a_theorem(Y)
          | ~ is_a_theorem(implies(X,Y))
          | ~ is_a_theorem(X) )
      | ~ modus_ponens ) ),
    inference(NNF_transformation,[status(thm)],[f91]) ).

fof(f93,plain,
    ( ( ? [Y] :
          ( ~ is_a_theorem(Y)
          & ? [X] :
              ( is_a_theorem(implies(X,Y))
              & is_a_theorem(X) ) )
      | modus_ponens )
    & ( ! [Y] :
          ( is_a_theorem(Y)
          | ! [X] :
              ( ~ is_a_theorem(implies(X,Y))
              | ~ is_a_theorem(X) ) )
      | ~ modus_ponens ) ),
    inference(miniscoping,[status(thm)],[f92]) ).

fof(f94,plain,
    ( ( ( ~ is_a_theorem(sK0_skl)
        & is_a_theorem(implies(sK1_skl,sK0_skl))
        & is_a_theorem(sK1_skl) )
      | modus_ponens )
    & ( ! [Y] :
          ( is_a_theorem(Y)
          | ! [X] :
              ( ~ is_a_theorem(implies(X,Y))
              | ~ is_a_theorem(X) ) )
      | ~ modus_ponens ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK0_skl,sK1_skl]),skolemize(Y,sK0_skl),skolemize(X,sK1_skl)],[f93]) ).

fof(f95,plain,
    ! [X0,X1] :
      ( is_a_theorem(X1)
      | ~ is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(X0)
      | ~ modus_ponens ),
    inference(cnf_transformation,[status(thm)],[f94]) ).

fof(f99,plain,
    ( substitution_of_equivalents
  <=> ! [X,Y] :
        ( X = Y
        | ~ is_a_theorem(equiv(X,Y)) ) ),
    inference(pre_NNF_transformation,[status(thm)],[f2]) ).

fof(f100,plain,
    ( ( ? [X,Y] :
          ( X != Y
          & is_a_theorem(equiv(X,Y)) )
      | substitution_of_equivalents )
    & ( ! [X,Y] :
          ( X = Y
          | ~ is_a_theorem(equiv(X,Y)) )
      | ~ substitution_of_equivalents ) ),
    inference(NNF_transformation,[status(thm)],[f99]) ).

fof(f101,plain,
    ( ( ( sK2_skl != sK3_skl
        & is_a_theorem(equiv(sK2_skl,sK3_skl)) )
      | substitution_of_equivalents )
    & ( ! [X,Y] :
          ( X = Y
          | ~ is_a_theorem(equiv(X,Y)) )
      | ~ substitution_of_equivalents ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK2_skl,sK3_skl]),skolemize(X,sK2_skl),skolemize(Y,sK3_skl)],[f100]) ).

fof(f102,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ is_a_theorem(equiv(X0,X1))
      | ~ substitution_of_equivalents ),
    inference(cnf_transformation,[status(thm)],[f101]) ).

fof(f105,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(implies(not(Y),not(X)),implies(X,Y)))
      | modus_tollens )
    & ( ! [X,Y] : is_a_theorem(implies(implies(not(Y),not(X)),implies(X,Y)))
      | ~ modus_tollens ) ),
    inference(NNF_transformation,[status(thm)],[f3]) ).

fof(f106,plain,
    ( ( ~ is_a_theorem(implies(implies(not(sK5_skl),not(sK4_skl)),implies(sK4_skl,sK5_skl)))
      | modus_tollens )
    & ( ! [X,Y] : is_a_theorem(implies(implies(not(Y),not(X)),implies(X,Y)))
      | ~ modus_tollens ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK4_skl,sK5_skl]),skolemize(X,sK4_skl),skolemize(Y,sK5_skl)],[f105]) ).

fof(f107,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(implies(not(X0),not(X1)),implies(X1,X0)))
      | ~ modus_tollens ),
    inference(cnf_transformation,[status(thm)],[f106]) ).

fof(f109,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(X,implies(Y,X)))
      | implies_1 )
    & ( ! [X,Y] : is_a_theorem(implies(X,implies(Y,X)))
      | ~ implies_1 ) ),
    inference(NNF_transformation,[status(thm)],[f4]) ).

fof(f110,plain,
    ( ( ~ is_a_theorem(implies(sK6_skl,implies(sK7_skl,sK6_skl)))
      | implies_1 )
    & ( ! [X,Y] : is_a_theorem(implies(X,implies(Y,X)))
      | ~ implies_1 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK6_skl,sK7_skl]),skolemize(X,sK6_skl),skolemize(Y,sK7_skl)],[f109]) ).

fof(f111,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X0,implies(X1,X0)))
      | ~ implies_1 ),
    inference(cnf_transformation,[status(thm)],[f110]) ).

fof(f113,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(implies(X,implies(X,Y)),implies(X,Y)))
      | implies_2 )
    & ( ! [X,Y] : is_a_theorem(implies(implies(X,implies(X,Y)),implies(X,Y)))
      | ~ implies_2 ) ),
    inference(NNF_transformation,[status(thm)],[f5]) ).

fof(f114,plain,
    ( ( ~ is_a_theorem(implies(implies(sK8_skl,implies(sK8_skl,sK9_skl)),implies(sK8_skl,sK9_skl)))
      | implies_2 )
    & ( ! [X,Y] : is_a_theorem(implies(implies(X,implies(X,Y)),implies(X,Y)))
      | ~ implies_2 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK8_skl,sK9_skl]),skolemize(X,sK8_skl),skolemize(Y,sK9_skl)],[f113]) ).

fof(f115,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1)))
      | ~ implies_2 ),
    inference(cnf_transformation,[status(thm)],[f114]) ).

fof(f121,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(and(X,Y),X))
      | and_1 )
    & ( ! [X,Y] : is_a_theorem(implies(and(X,Y),X))
      | ~ and_1 ) ),
    inference(NNF_transformation,[status(thm)],[f7]) ).

fof(f122,plain,
    ( ( ~ is_a_theorem(implies(and(sK13_skl,sK14_skl),sK13_skl))
      | and_1 )
    & ( ! [X,Y] : is_a_theorem(implies(and(X,Y),X))
      | ~ and_1 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK13_skl,sK14_skl]),skolemize(X,sK13_skl),skolemize(Y,sK14_skl)],[f121]) ).

fof(f123,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(and(X0,X1),X0))
      | ~ and_1 ),
    inference(cnf_transformation,[status(thm)],[f122]) ).

fof(f129,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(X,implies(Y,and(X,Y))))
      | and_3 )
    & ( ! [X,Y] : is_a_theorem(implies(X,implies(Y,and(X,Y))))
      | ~ and_3 ) ),
    inference(NNF_transformation,[status(thm)],[f9]) ).

fof(f130,plain,
    ( ( ~ is_a_theorem(implies(sK17_skl,implies(sK18_skl,and(sK17_skl,sK18_skl))))
      | and_3 )
    & ( ! [X,Y] : is_a_theorem(implies(X,implies(Y,and(X,Y))))
      | ~ and_3 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK17_skl,sK18_skl]),skolemize(X,sK17_skl),skolemize(Y,sK18_skl)],[f129]) ).

fof(f131,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X0,implies(X1,and(X0,X1))))
      | ~ and_3 ),
    inference(cnf_transformation,[status(thm)],[f130]) ).

fof(f133,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(X,or(X,Y)))
      | or_1 )
    & ( ! [X,Y] : is_a_theorem(implies(X,or(X,Y)))
      | ~ or_1 ) ),
    inference(NNF_transformation,[status(thm)],[f10]) ).

fof(f134,plain,
    ( ( ~ is_a_theorem(implies(sK19_skl,or(sK19_skl,sK20_skl)))
      | or_1 )
    & ( ! [X,Y] : is_a_theorem(implies(X,or(X,Y)))
      | ~ or_1 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK19_skl,sK20_skl]),skolemize(X,sK19_skl),skolemize(Y,sK20_skl)],[f133]) ).

fof(f135,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X0,or(X0,X1)))
      | ~ or_1 ),
    inference(cnf_transformation,[status(thm)],[f134]) ).

fof(f137,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(Y,or(X,Y)))
      | or_2 )
    & ( ! [X,Y] : is_a_theorem(implies(Y,or(X,Y)))
      | ~ or_2 ) ),
    inference(NNF_transformation,[status(thm)],[f11]) ).

fof(f138,plain,
    ( ( ~ is_a_theorem(implies(sK22_skl,or(sK21_skl,sK22_skl)))
      | or_2 )
    & ( ! [X,Y] : is_a_theorem(implies(Y,or(X,Y)))
      | ~ or_2 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK21_skl,sK22_skl]),skolemize(X,sK21_skl),skolemize(Y,sK22_skl)],[f137]) ).

fof(f139,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X0,or(X1,X0)))
      | ~ or_2 ),
    inference(cnf_transformation,[status(thm)],[f138]) ).

fof(f141,plain,
    ( ( ? [X,Y,Z] : ~ is_a_theorem(implies(implies(X,Z),implies(implies(Y,Z),implies(or(X,Y),Z))))
      | or_3 )
    & ( ! [X,Y,Z] : is_a_theorem(implies(implies(X,Z),implies(implies(Y,Z),implies(or(X,Y),Z))))
      | ~ or_3 ) ),
    inference(NNF_transformation,[status(thm)],[f12]) ).

fof(f142,plain,
    ( ( ~ is_a_theorem(implies(implies(sK23_skl,sK25_skl),implies(implies(sK24_skl,sK25_skl),implies(or(sK23_skl,sK24_skl),sK25_skl))))
      | or_3 )
    & ( ! [X,Y,Z] : is_a_theorem(implies(implies(X,Z),implies(implies(Y,Z),implies(or(X,Y),Z))))
      | ~ or_3 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK23_skl,sK24_skl,sK25_skl]),skolemize(X,sK23_skl),skolemize(Y,sK24_skl),skolemize(Z,sK25_skl)],[f141]) ).

fof(f143,plain,
    ! [X0,X1,X2] :
      ( is_a_theorem(implies(implies(X0,X1),implies(implies(X2,X1),implies(or(X0,X2),X1))))
      | ~ or_3 ),
    inference(cnf_transformation,[status(thm)],[f142]) ).

fof(f153,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(implies(implies(X,Y),implies(implies(Y,X),equiv(X,Y))))
      | equivalence_3 )
    & ( ! [X,Y] : is_a_theorem(implies(implies(X,Y),implies(implies(Y,X),equiv(X,Y))))
      | ~ equivalence_3 ) ),
    inference(NNF_transformation,[status(thm)],[f15]) ).

fof(f154,plain,
    ( ( ~ is_a_theorem(implies(implies(sK30_skl,sK31_skl),implies(implies(sK31_skl,sK30_skl),equiv(sK30_skl,sK31_skl))))
      | equivalence_3 )
    & ( ! [X,Y] : is_a_theorem(implies(implies(X,Y),implies(implies(Y,X),equiv(X,Y))))
      | ~ equivalence_3 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK30_skl,sK31_skl]),skolemize(X,sK30_skl),skolemize(Y,sK31_skl)],[f153]) ).

fof(f155,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1))))
      | ~ equivalence_3 ),
    inference(cnf_transformation,[status(thm)],[f154]) ).

fof(f157,plain,
    ( ( ? [P] : ~ is_a_theorem(implies(P,and(P,P)))
      | kn1 )
    & ( ! [P] : is_a_theorem(implies(P,and(P,P)))
      | ~ kn1 ) ),
    inference(NNF_transformation,[status(thm)],[f16]) ).

fof(f158,plain,
    ( ( ~ is_a_theorem(implies(sK32_skl,and(sK32_skl,sK32_skl)))
      | kn1 )
    & ( ! [P] : is_a_theorem(implies(P,and(P,P)))
      | ~ kn1 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK32_skl]),skolemize(P,sK32_skl)],[f157]) ).

fof(f159,plain,
    ! [X0] :
      ( is_a_theorem(implies(X0,and(X0,X0)))
      | ~ kn1 ),
    inference(cnf_transformation,[status(thm)],[f158]) ).

fof(f160,plain,
    ( ~ is_a_theorem(implies(sK32_skl,and(sK32_skl,sK32_skl)))
    | kn1 ),
    inference(cnf_transformation,[status(thm)],[f158]) ).

fof(f189,plain,
    ( ( ? [P,Q] : ~ is_a_theorem(implies(or(P,Q),or(Q,P)))
      | r3 )
    & ( ! [P,Q] : is_a_theorem(implies(or(P,Q),or(Q,P)))
      | ~ r3 ) ),
    inference(NNF_transformation,[status(thm)],[f24]) ).

fof(f190,plain,
    ( ( ~ is_a_theorem(implies(or(sK47_skl,sK48_skl),or(sK48_skl,sK47_skl)))
      | r3 )
    & ( ! [P,Q] : is_a_theorem(implies(or(P,Q),or(Q,P)))
      | ~ r3 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK47_skl,sK48_skl]),skolemize(P,sK47_skl),skolemize(Q,sK48_skl)],[f189]) ).

fof(f191,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(or(X0,X1),or(X1,X0)))
      | ~ r3 ),
    inference(cnf_transformation,[status(thm)],[f190]) ).

fof(f192,plain,
    ( ~ is_a_theorem(implies(or(sK47_skl,sK48_skl),or(sK48_skl,sK47_skl)))
    | r3 ),
    inference(cnf_transformation,[status(thm)],[f190]) ).

fof(f201,plain,
    ( ! [X,Y] : or(X,Y) = not(and(not(X),not(Y)))
    | ~ op_or ),
    inference(pre_NNF_transformation,[status(thm)],[f27]) ).

fof(f202,plain,
    ! [X0,X1] :
      ( or(X0,X1) = not(and(not(X0),not(X1)))
      | ~ op_or ),
    inference(cnf_transformation,[status(thm)],[f201]) ).

fof(f205,plain,
    ( ! [X,Y] : implies(X,Y) = not(and(X,not(Y)))
    | ~ op_implies_and ),
    inference(pre_NNF_transformation,[status(thm)],[f29]) ).

fof(f206,plain,
    ! [X0,X1] :
      ( implies(X0,X1) = not(and(X0,not(X1)))
      | ~ op_implies_and ),
    inference(cnf_transformation,[status(thm)],[f205]) ).

fof(f209,plain,
    ( ! [X,Y] : equiv(X,Y) = and(implies(X,Y),implies(Y,X))
    | ~ op_equiv ),
    inference(pre_NNF_transformation,[status(thm)],[f31]) ).

fof(f210,plain,
    ! [X0,X1] :
      ( equiv(X0,X1) = and(implies(X0,X1),implies(X1,X0))
      | ~ op_equiv ),
    inference(cnf_transformation,[status(thm)],[f209]) ).

fof(f211,plain,
    op_or,
    inference(cnf_transformation,[status(thm)],[f32]) ).

fof(f212,plain,
    op_implies_and,
    inference(cnf_transformation,[status(thm)],[f33]) ).

fof(f213,plain,
    op_equiv,
    inference(cnf_transformation,[status(thm)],[f34]) ).

fof(f214,plain,
    modus_ponens,
    inference(cnf_transformation,[status(thm)],[f35]) ).

fof(f215,plain,
    modus_tollens,
    inference(cnf_transformation,[status(thm)],[f36]) ).

fof(f216,plain,
    implies_1,
    inference(cnf_transformation,[status(thm)],[f37]) ).

fof(f217,plain,
    implies_2,
    inference(cnf_transformation,[status(thm)],[f38]) ).

fof(f219,plain,
    and_1,
    inference(cnf_transformation,[status(thm)],[f40]) ).

fof(f221,plain,
    and_3,
    inference(cnf_transformation,[status(thm)],[f42]) ).

fof(f222,plain,
    or_1,
    inference(cnf_transformation,[status(thm)],[f43]) ).

fof(f223,plain,
    or_2,
    inference(cnf_transformation,[status(thm)],[f44]) ).

fof(f224,plain,
    or_3,
    inference(cnf_transformation,[status(thm)],[f45]) ).

fof(f227,plain,
    equivalence_3,
    inference(cnf_transformation,[status(thm)],[f48]) ).

fof(f228,plain,
    substitution_of_equivalents,
    inference(cnf_transformation,[status(thm)],[f49]) ).

fof(f229,plain,
    ( necessitation
  <=> ! [X] :
        ( is_a_theorem(necessarily(X))
        | ~ is_a_theorem(X) ) ),
    inference(pre_NNF_transformation,[status(thm)],[f50]) ).

fof(f230,plain,
    ( ( ? [X] :
          ( ~ is_a_theorem(necessarily(X))
          & is_a_theorem(X) )
      | necessitation )
    & ( ! [X] :
          ( is_a_theorem(necessarily(X))
          | ~ is_a_theorem(X) )
      | ~ necessitation ) ),
    inference(NNF_transformation,[status(thm)],[f229]) ).

fof(f231,plain,
    ( ( ( ~ is_a_theorem(necessarily(sK55_skl))
        & is_a_theorem(sK55_skl) )
      | necessitation )
    & ( ! [X] :
          ( is_a_theorem(necessarily(X))
          | ~ is_a_theorem(X) )
      | ~ necessitation ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK55_skl]),skolemize(X,sK55_skl)],[f230]) ).

fof(f232,plain,
    ! [X0] :
      ( is_a_theorem(necessarily(X0))
      | ~ is_a_theorem(X0)
      | ~ necessitation ),
    inference(cnf_transformation,[status(thm)],[f231]) ).

fof(f260,plain,
    ( ( ? [X] : ~ is_a_theorem(implies(necessarily(X),X))
      | axiom_M )
    & ( ! [X] : is_a_theorem(implies(necessarily(X),X))
      | ~ axiom_M ) ),
    inference(NNF_transformation,[status(thm)],[f55]) ).

fof(f261,plain,
    ( ( ~ is_a_theorem(implies(necessarily(sK64_skl),sK64_skl))
      | axiom_M )
    & ( ! [X] : is_a_theorem(implies(necessarily(X),X))
      | ~ axiom_M ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK64_skl]),skolemize(X,sK64_skl)],[f260]) ).

fof(f262,plain,
    ! [X0] :
      ( is_a_theorem(implies(necessarily(X0),X0))
      | ~ axiom_M ),
    inference(cnf_transformation,[status(thm)],[f261]) ).

fof(f264,plain,
    ( ( ? [X] : ~ is_a_theorem(implies(necessarily(X),necessarily(necessarily(X))))
      | axiom_4 )
    & ( ! [X] : is_a_theorem(implies(necessarily(X),necessarily(necessarily(X))))
      | ~ axiom_4 ) ),
    inference(NNF_transformation,[status(thm)],[f56]) ).

fof(f265,plain,
    ( ( ~ is_a_theorem(implies(necessarily(sK65_skl),necessarily(necessarily(sK65_skl))))
      | axiom_4 )
    & ( ! [X] : is_a_theorem(implies(necessarily(X),necessarily(necessarily(X))))
      | ~ axiom_4 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK65_skl]),skolemize(X,sK65_skl)],[f264]) ).

fof(f266,plain,
    ! [X0] :
      ( is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0))))
      | ~ axiom_4 ),
    inference(cnf_transformation,[status(thm)],[f265]) ).

fof(f324,plain,
    ( ( ? [X] : ~ is_a_theorem(strict_implies(possibly(possibly(X)),possibly(X)))
      | axiom_m9 )
    & ( ! [X] : is_a_theorem(strict_implies(possibly(possibly(X)),possibly(X)))
      | ~ axiom_m9 ) ),
    inference(NNF_transformation,[status(thm)],[f71]) ).

fof(f325,plain,
    ( ( ~ is_a_theorem(strict_implies(possibly(possibly(sK92_skl)),possibly(sK92_skl)))
      | axiom_m9 )
    & ( ! [X] : is_a_theorem(strict_implies(possibly(possibly(X)),possibly(X)))
      | ~ axiom_m9 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK92_skl]),skolemize(X,sK92_skl)],[f324]) ).

fof(f327,plain,
    ( ~ is_a_theorem(strict_implies(possibly(possibly(sK92_skl)),possibly(sK92_skl)))
    | axiom_m9 ),
    inference(cnf_transformation,[status(thm)],[f325]) ).

fof(f332,plain,
    ( ! [X] : possibly(X) = not(necessarily(not(X)))
    | ~ op_possibly ),
    inference(pre_NNF_transformation,[status(thm)],[f73]) ).

fof(f333,plain,
    ! [X0] :
      ( possibly(X0) = not(necessarily(not(X0)))
      | ~ op_possibly ),
    inference(cnf_transformation,[status(thm)],[f332]) ).

fof(f336,plain,
    ( ! [X,Y] : strict_implies(X,Y) = necessarily(implies(X,Y))
    | ~ op_strict_implies ),
    inference(pre_NNF_transformation,[status(thm)],[f75]) ).

fof(f337,plain,
    ! [X0,X1] :
      ( strict_implies(X0,X1) = necessarily(implies(X0,X1))
      | ~ op_strict_implies ),
    inference(cnf_transformation,[status(thm)],[f336]) ).

fof(f340,plain,
    op_possibly,
    inference(cnf_transformation,[status(thm)],[f77]) ).

fof(f341,plain,
    necessitation,
    inference(cnf_transformation,[status(thm)],[f78]) ).

fof(f343,plain,
    axiom_M,
    inference(cnf_transformation,[status(thm)],[f80]) ).

fof(f344,plain,
    axiom_4,
    inference(cnf_transformation,[status(thm)],[f81]) ).

fof(f349,plain,
    op_strict_implies,
    inference(cnf_transformation,[status(thm)],[f86]) ).

fof(f352,plain,
    ~ axiom_m9,
    inference(cnf_transformation,[status(thm)],[f90]) ).

fof(f353,definition,
    ( sQ0_spl
  <=> modus_ponens ),
    introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).

fof(f355,plain,
    ( sQ0_spl
    | ~ modus_ponens ),
    inference(component_clause,[status(thm)],[f353]) ).

fof(f356,definition,
    ! [X0,X1] :
      ( sQ1_spl
    <=> ( is_a_theorem(X1)
        | ~ is_a_theorem(implies(X0,X1))
        | ~ is_a_theorem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ1_spl])],[split_symbol_definition]) ).

fof(f357,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | is_a_theorem(X1)
      | ~ is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(X0) ),
    inference(component_clause,[status(thm)],[f356]) ).

fof(f359,plain,
    ( sQ1_spl
    | ~ sQ0_spl ),
    inference(split_clause,[status(thm)],[f95,f353,f356]) ).

fof(f372,definition,
    ( sQ5_spl
  <=> substitution_of_equivalents ),
    introduced(definition,[new_symbols(definition,[sQ5_spl])],[split_symbol_definition]) ).

fof(f374,plain,
    ( sQ5_spl
    | ~ substitution_of_equivalents ),
    inference(component_clause,[status(thm)],[f372]) ).

fof(f375,definition,
    ! [X0,X1] :
      ( sQ6_spl
    <=> ( X0 = X1
        | ~ is_a_theorem(equiv(X0,X1)) ) ),
    introduced(definition,[new_symbols(definition,[sQ6_spl])],[split_symbol_definition]) ).

fof(f376,plain,
    ! [X0,X1] :
      ( ~ sQ6_spl
      | X0 = X1
      | ~ is_a_theorem(equiv(X0,X1)) ),
    inference(component_clause,[status(thm)],[f375]) ).

fof(f378,plain,
    ( sQ6_spl
    | ~ sQ5_spl ),
    inference(split_clause,[status(thm)],[f102,f372,f375]) ).

fof(f387,definition,
    ( sQ9_spl
  <=> modus_tollens ),
    introduced(definition,[new_symbols(definition,[sQ9_spl])],[split_symbol_definition]) ).

fof(f389,plain,
    ( sQ9_spl
    | ~ modus_tollens ),
    inference(component_clause,[status(thm)],[f387]) ).

fof(f390,definition,
    ! [X0,X1] :
      ( sQ10_spl
    <=> is_a_theorem(implies(implies(not(X0),not(X1)),implies(X1,X0))) ),
    introduced(definition,[new_symbols(definition,[sQ10_spl])],[split_symbol_definition]) ).

fof(f391,plain,
    ! [X0,X1] :
      ( ~ sQ10_spl
      | is_a_theorem(implies(implies(not(X0),not(X1)),implies(X1,X0))) ),
    inference(component_clause,[status(thm)],[f390]) ).

fof(f393,plain,
    ( sQ10_spl
    | ~ sQ9_spl ),
    inference(split_clause,[status(thm)],[f107,f387,f390]) ).

fof(f398,definition,
    ( sQ12_spl
  <=> implies_1 ),
    introduced(definition,[new_symbols(definition,[sQ12_spl])],[split_symbol_definition]) ).

fof(f400,plain,
    ( sQ12_spl
    | ~ implies_1 ),
    inference(component_clause,[status(thm)],[f398]) ).

fof(f401,definition,
    ! [X0,X1] :
      ( sQ13_spl
    <=> is_a_theorem(implies(X0,implies(X1,X0))) ),
    introduced(definition,[new_symbols(definition,[sQ13_spl])],[split_symbol_definition]) ).

fof(f402,plain,
    ! [X0,X1] :
      ( ~ sQ13_spl
      | is_a_theorem(implies(X0,implies(X1,X0))) ),
    inference(component_clause,[status(thm)],[f401]) ).

fof(f404,plain,
    ( sQ13_spl
    | ~ sQ12_spl ),
    inference(split_clause,[status(thm)],[f111,f398,f401]) ).

fof(f409,definition,
    ( sQ15_spl
  <=> implies_2 ),
    introduced(definition,[new_symbols(definition,[sQ15_spl])],[split_symbol_definition]) ).

fof(f411,plain,
    ( sQ15_spl
    | ~ implies_2 ),
    inference(component_clause,[status(thm)],[f409]) ).

fof(f412,definition,
    ! [X0,X1] :
      ( sQ16_spl
    <=> is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1))) ),
    introduced(definition,[new_symbols(definition,[sQ16_spl])],[split_symbol_definition]) ).

fof(f413,plain,
    ! [X0,X1] :
      ( ~ sQ16_spl
      | is_a_theorem(implies(implies(X0,implies(X0,X1)),implies(X0,X1))) ),
    inference(component_clause,[status(thm)],[f412]) ).

fof(f415,plain,
    ( sQ16_spl
    | ~ sQ15_spl ),
    inference(split_clause,[status(thm)],[f115,f409,f412]) ).

fof(f431,definition,
    ( sQ21_spl
  <=> and_1 ),
    introduced(definition,[new_symbols(definition,[sQ21_spl])],[split_symbol_definition]) ).

fof(f433,plain,
    ( sQ21_spl
    | ~ and_1 ),
    inference(component_clause,[status(thm)],[f431]) ).

fof(f434,definition,
    ! [X0,X1] :
      ( sQ22_spl
    <=> is_a_theorem(implies(and(X0,X1),X0)) ),
    introduced(definition,[new_symbols(definition,[sQ22_spl])],[split_symbol_definition]) ).

fof(f435,plain,
    ! [X0,X1] :
      ( ~ sQ22_spl
      | is_a_theorem(implies(and(X0,X1),X0)) ),
    inference(component_clause,[status(thm)],[f434]) ).

fof(f437,plain,
    ( sQ22_spl
    | ~ sQ21_spl ),
    inference(split_clause,[status(thm)],[f123,f431,f434]) ).

fof(f453,definition,
    ( sQ27_spl
  <=> and_3 ),
    introduced(definition,[new_symbols(definition,[sQ27_spl])],[split_symbol_definition]) ).

fof(f455,plain,
    ( sQ27_spl
    | ~ and_3 ),
    inference(component_clause,[status(thm)],[f453]) ).

fof(f456,definition,
    ! [X0,X1] :
      ( sQ28_spl
    <=> is_a_theorem(implies(X0,implies(X1,and(X0,X1)))) ),
    introduced(definition,[new_symbols(definition,[sQ28_spl])],[split_symbol_definition]) ).

fof(f457,plain,
    ! [X0,X1] :
      ( ~ sQ28_spl
      | is_a_theorem(implies(X0,implies(X1,and(X0,X1)))) ),
    inference(component_clause,[status(thm)],[f456]) ).

fof(f459,plain,
    ( sQ28_spl
    | ~ sQ27_spl ),
    inference(split_clause,[status(thm)],[f131,f453,f456]) ).

fof(f464,definition,
    ( sQ30_spl
  <=> or_1 ),
    introduced(definition,[new_symbols(definition,[sQ30_spl])],[split_symbol_definition]) ).

fof(f466,plain,
    ( sQ30_spl
    | ~ or_1 ),
    inference(component_clause,[status(thm)],[f464]) ).

fof(f467,definition,
    ! [X0,X1] :
      ( sQ31_spl
    <=> is_a_theorem(implies(X0,or(X0,X1))) ),
    introduced(definition,[new_symbols(definition,[sQ31_spl])],[split_symbol_definition]) ).

fof(f468,plain,
    ! [X0,X1] :
      ( ~ sQ31_spl
      | is_a_theorem(implies(X0,or(X0,X1))) ),
    inference(component_clause,[status(thm)],[f467]) ).

fof(f470,plain,
    ( sQ31_spl
    | ~ sQ30_spl ),
    inference(split_clause,[status(thm)],[f135,f464,f467]) ).

fof(f475,definition,
    ( sQ33_spl
  <=> or_2 ),
    introduced(definition,[new_symbols(definition,[sQ33_spl])],[split_symbol_definition]) ).

fof(f477,plain,
    ( sQ33_spl
    | ~ or_2 ),
    inference(component_clause,[status(thm)],[f475]) ).

fof(f478,definition,
    ! [X0,X1] :
      ( sQ34_spl
    <=> is_a_theorem(implies(X0,or(X1,X0))) ),
    introduced(definition,[new_symbols(definition,[sQ34_spl])],[split_symbol_definition]) ).

fof(f479,plain,
    ! [X0,X1] :
      ( ~ sQ34_spl
      | is_a_theorem(implies(X0,or(X1,X0))) ),
    inference(component_clause,[status(thm)],[f478]) ).

fof(f481,plain,
    ( sQ34_spl
    | ~ sQ33_spl ),
    inference(split_clause,[status(thm)],[f139,f475,f478]) ).

fof(f486,definition,
    ( sQ36_spl
  <=> or_3 ),
    introduced(definition,[new_symbols(definition,[sQ36_spl])],[split_symbol_definition]) ).

fof(f488,plain,
    ( sQ36_spl
    | ~ or_3 ),
    inference(component_clause,[status(thm)],[f486]) ).

fof(f489,definition,
    ! [X0,X1,X2] :
      ( sQ37_spl
    <=> is_a_theorem(implies(implies(X0,X1),implies(implies(X2,X1),implies(or(X0,X2),X1)))) ),
    introduced(definition,[new_symbols(definition,[sQ37_spl])],[split_symbol_definition]) ).

fof(f490,plain,
    ! [X0,X1,X2] :
      ( ~ sQ37_spl
      | is_a_theorem(implies(implies(X0,X1),implies(implies(X2,X1),implies(or(X0,X2),X1)))) ),
    inference(component_clause,[status(thm)],[f489]) ).

fof(f492,plain,
    ( sQ37_spl
    | ~ sQ36_spl ),
    inference(split_clause,[status(thm)],[f143,f486,f489]) ).

fof(f519,definition,
    ( sQ45_spl
  <=> equivalence_3 ),
    introduced(definition,[new_symbols(definition,[sQ45_spl])],[split_symbol_definition]) ).

fof(f521,plain,
    ( sQ45_spl
    | ~ equivalence_3 ),
    inference(component_clause,[status(thm)],[f519]) ).

fof(f522,definition,
    ! [X0,X1] :
      ( sQ46_spl
    <=> is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1)))) ),
    introduced(definition,[new_symbols(definition,[sQ46_spl])],[split_symbol_definition]) ).

fof(f523,plain,
    ! [X0,X1] :
      ( ~ sQ46_spl
      | is_a_theorem(implies(implies(X0,X1),implies(implies(X1,X0),equiv(X0,X1)))) ),
    inference(component_clause,[status(thm)],[f522]) ).

fof(f525,plain,
    ( sQ46_spl
    | ~ sQ45_spl ),
    inference(split_clause,[status(thm)],[f155,f519,f522]) ).

fof(f530,definition,
    ( sQ48_spl
  <=> kn1 ),
    introduced(definition,[new_symbols(definition,[sQ48_spl])],[split_symbol_definition]) ).

fof(f533,definition,
    ! [X0] :
      ( sQ49_spl
    <=> is_a_theorem(implies(X0,and(X0,X0))) ),
    introduced(definition,[new_symbols(definition,[sQ49_spl])],[split_symbol_definition]) ).

fof(f534,plain,
    ! [X0] :
      ( ~ sQ49_spl
      | is_a_theorem(implies(X0,and(X0,X0))) ),
    inference(component_clause,[status(thm)],[f533]) ).

fof(f536,plain,
    ( sQ49_spl
    | ~ sQ48_spl ),
    inference(split_clause,[status(thm)],[f159,f530,f533]) ).

fof(f537,definition,
    ( sQ50_spl
  <=> is_a_theorem(implies(sK32_skl,and(sK32_skl,sK32_skl))) ),
    introduced(definition,[new_symbols(definition,[sQ50_spl])],[split_symbol_definition]) ).

fof(f539,plain,
    ( sQ50_spl
    | ~ is_a_theorem(implies(sK32_skl,and(sK32_skl,sK32_skl))) ),
    inference(component_clause,[status(thm)],[f537]) ).

fof(f540,plain,
    ( ~ sQ50_spl
    | sQ48_spl ),
    inference(split_clause,[status(thm)],[f160,f530,f537]) ).

fof(f609,definition,
    ( sQ69_spl
  <=> r3 ),
    introduced(definition,[new_symbols(definition,[sQ69_spl])],[split_symbol_definition]) ).

fof(f612,definition,
    ! [X0,X1] :
      ( sQ70_spl
    <=> is_a_theorem(implies(or(X0,X1),or(X1,X0))) ),
    introduced(definition,[new_symbols(definition,[sQ70_spl])],[split_symbol_definition]) ).

fof(f613,plain,
    ! [X0,X1] :
      ( ~ sQ70_spl
      | is_a_theorem(implies(or(X0,X1),or(X1,X0))) ),
    inference(component_clause,[status(thm)],[f612]) ).

fof(f615,plain,
    ( sQ70_spl
    | ~ sQ69_spl ),
    inference(split_clause,[status(thm)],[f191,f609,f612]) ).

fof(f616,definition,
    ( sQ71_spl
  <=> is_a_theorem(implies(or(sK47_skl,sK48_skl),or(sK48_skl,sK47_skl))) ),
    introduced(definition,[new_symbols(definition,[sQ71_spl])],[split_symbol_definition]) ).

fof(f618,plain,
    ( sQ71_spl
    | ~ is_a_theorem(implies(or(sK47_skl,sK48_skl),or(sK48_skl,sK47_skl))) ),
    inference(component_clause,[status(thm)],[f616]) ).

fof(f619,plain,
    ( ~ sQ71_spl
    | sQ69_spl ),
    inference(split_clause,[status(thm)],[f192,f609,f616]) ).

fof(f642,definition,
    ( sQ78_spl
  <=> op_or ),
    introduced(definition,[new_symbols(definition,[sQ78_spl])],[split_symbol_definition]) ).

fof(f644,plain,
    ( sQ78_spl
    | ~ op_or ),
    inference(component_clause,[status(thm)],[f642]) ).

fof(f645,definition,
    ! [X0,X1] :
      ( sQ79_spl
    <=> or(X0,X1) = not(and(not(X0),not(X1))) ),
    introduced(definition,[new_symbols(definition,[sQ79_spl])],[split_symbol_definition]) ).

fof(f646,plain,
    ! [X0,X1] :
      ( ~ sQ79_spl
      | or(X0,X1) = not(and(not(X0),not(X1))) ),
    inference(component_clause,[status(thm)],[f645]) ).

fof(f648,plain,
    ( sQ79_spl
    | ~ sQ78_spl ),
    inference(split_clause,[status(thm)],[f202,f642,f645]) ).

fof(f656,definition,
    ( sQ82_spl
  <=> op_implies_and ),
    introduced(definition,[new_symbols(definition,[sQ82_spl])],[split_symbol_definition]) ).

fof(f658,plain,
    ( sQ82_spl
    | ~ op_implies_and ),
    inference(component_clause,[status(thm)],[f656]) ).

fof(f659,definition,
    ! [X0,X1] :
      ( sQ83_spl
    <=> implies(X0,X1) = not(and(X0,not(X1))) ),
    introduced(definition,[new_symbols(definition,[sQ83_spl])],[split_symbol_definition]) ).

fof(f660,plain,
    ! [X0,X1] :
      ( ~ sQ83_spl
      | implies(X0,X1) = not(and(X0,not(X1))) ),
    inference(component_clause,[status(thm)],[f659]) ).

fof(f662,plain,
    ( sQ83_spl
    | ~ sQ82_spl ),
    inference(split_clause,[status(thm)],[f206,f656,f659]) ).

fof(f670,definition,
    ( sQ86_spl
  <=> op_equiv ),
    introduced(definition,[new_symbols(definition,[sQ86_spl])],[split_symbol_definition]) ).

fof(f672,plain,
    ( sQ86_spl
    | ~ op_equiv ),
    inference(component_clause,[status(thm)],[f670]) ).

fof(f673,definition,
    ! [X0,X1] :
      ( sQ87_spl
    <=> equiv(X0,X1) = and(implies(X0,X1),implies(X1,X0)) ),
    introduced(definition,[new_symbols(definition,[sQ87_spl])],[split_symbol_definition]) ).

fof(f674,plain,
    ! [X0,X1] :
      ( ~ sQ87_spl
      | equiv(X0,X1) = and(implies(X0,X1),implies(X1,X0)) ),
    inference(component_clause,[status(thm)],[f673]) ).

fof(f676,plain,
    ( sQ87_spl
    | ~ sQ86_spl ),
    inference(split_clause,[status(thm)],[f210,f670,f673]) ).

fof(f677,definition,
    ( sQ88_spl
  <=> necessitation ),
    introduced(definition,[new_symbols(definition,[sQ88_spl])],[split_symbol_definition]) ).

fof(f679,plain,
    ( sQ88_spl
    | ~ necessitation ),
    inference(component_clause,[status(thm)],[f677]) ).

fof(f680,definition,
    ! [X0] :
      ( sQ89_spl
    <=> ( is_a_theorem(necessarily(X0))
        | ~ is_a_theorem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ89_spl])],[split_symbol_definition]) ).

fof(f681,plain,
    ! [X0] :
      ( ~ sQ89_spl
      | is_a_theorem(necessarily(X0))
      | ~ is_a_theorem(X0) ),
    inference(component_clause,[status(thm)],[f680]) ).

fof(f683,plain,
    ( sQ89_spl
    | ~ sQ88_spl ),
    inference(split_clause,[status(thm)],[f232,f677,f680]) ).

fof(f756,definition,
    ( sQ109_spl
  <=> axiom_M ),
    introduced(definition,[new_symbols(definition,[sQ109_spl])],[split_symbol_definition]) ).

fof(f758,plain,
    ( sQ109_spl
    | ~ axiom_M ),
    inference(component_clause,[status(thm)],[f756]) ).

fof(f759,definition,
    ! [X0] :
      ( sQ110_spl
    <=> is_a_theorem(implies(necessarily(X0),X0)) ),
    introduced(definition,[new_symbols(definition,[sQ110_spl])],[split_symbol_definition]) ).

fof(f760,plain,
    ! [X0] :
      ( ~ sQ110_spl
      | is_a_theorem(implies(necessarily(X0),X0)) ),
    inference(component_clause,[status(thm)],[f759]) ).

fof(f762,plain,
    ( sQ110_spl
    | ~ sQ109_spl ),
    inference(split_clause,[status(thm)],[f262,f756,f759]) ).

fof(f767,definition,
    ( sQ112_spl
  <=> axiom_4 ),
    introduced(definition,[new_symbols(definition,[sQ112_spl])],[split_symbol_definition]) ).

fof(f769,plain,
    ( sQ112_spl
    | ~ axiom_4 ),
    inference(component_clause,[status(thm)],[f767]) ).

fof(f770,definition,
    ! [X0] :
      ( sQ113_spl
    <=> is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0)))) ),
    introduced(definition,[new_symbols(definition,[sQ113_spl])],[split_symbol_definition]) ).

fof(f771,plain,
    ! [X0] :
      ( ~ sQ113_spl
      | is_a_theorem(implies(necessarily(X0),necessarily(necessarily(X0)))) ),
    inference(component_clause,[status(thm)],[f770]) ).

fof(f773,plain,
    ( sQ113_spl
    | ~ sQ112_spl ),
    inference(split_clause,[status(thm)],[f266,f767,f770]) ).

fof(f932,definition,
    ( sQ157_spl
  <=> axiom_m9 ),
    introduced(definition,[new_symbols(definition,[sQ157_spl])],[split_symbol_definition]) ).

fof(f933,plain,
    ( ~ sQ157_spl
    | axiom_m9 ),
    inference(component_clause,[status(thm)],[f932]) ).

fof(f939,definition,
    ( sQ159_spl
  <=> is_a_theorem(strict_implies(possibly(possibly(sK92_skl)),possibly(sK92_skl))) ),
    introduced(definition,[new_symbols(definition,[sQ159_spl])],[split_symbol_definition]) ).

fof(f941,plain,
    ( sQ159_spl
    | ~ is_a_theorem(strict_implies(possibly(possibly(sK92_skl)),possibly(sK92_skl))) ),
    inference(component_clause,[status(thm)],[f939]) ).

fof(f942,plain,
    ( ~ sQ159_spl
    | sQ157_spl ),
    inference(split_clause,[status(thm)],[f327,f932,f939]) ).

fof(f954,definition,
    ( sQ163_spl
  <=> op_possibly ),
    introduced(definition,[new_symbols(definition,[sQ163_spl])],[split_symbol_definition]) ).

fof(f956,plain,
    ( sQ163_spl
    | ~ op_possibly ),
    inference(component_clause,[status(thm)],[f954]) ).

fof(f957,definition,
    ! [X0] :
      ( sQ164_spl
    <=> possibly(X0) = not(necessarily(not(X0))) ),
    introduced(definition,[new_symbols(definition,[sQ164_spl])],[split_symbol_definition]) ).

fof(f958,plain,
    ! [X0] :
      ( ~ sQ164_spl
      | possibly(X0) = not(necessarily(not(X0))) ),
    inference(component_clause,[status(thm)],[f957]) ).

fof(f960,plain,
    ( sQ164_spl
    | ~ sQ163_spl ),
    inference(split_clause,[status(thm)],[f333,f954,f957]) ).

fof(f968,definition,
    ( sQ167_spl
  <=> op_strict_implies ),
    introduced(definition,[new_symbols(definition,[sQ167_spl])],[split_symbol_definition]) ).

fof(f970,plain,
    ( sQ167_spl
    | ~ op_strict_implies ),
    inference(component_clause,[status(thm)],[f968]) ).

fof(f971,definition,
    ! [X0,X1] :
      ( sQ168_spl
    <=> strict_implies(X0,X1) = necessarily(implies(X0,X1)) ),
    introduced(definition,[new_symbols(definition,[sQ168_spl])],[split_symbol_definition]) ).

fof(f972,plain,
    ! [X0,X1] :
      ( ~ sQ168_spl
      | strict_implies(X0,X1) = necessarily(implies(X0,X1)) ),
    inference(component_clause,[status(thm)],[f971]) ).

fof(f974,plain,
    ( sQ168_spl
    | ~ sQ167_spl ),
    inference(split_clause,[status(thm)],[f337,f968,f971]) ).

fof(f984,plain,
    ( sQ0_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f355,f214]) ).

fof(f985,plain,
    sQ0_spl,
    inference(contradiction_clause,[status(thm)],[f984]) ).

fof(f986,plain,
    ( sQ88_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f679,f341]) ).

fof(f987,plain,
    sQ88_spl,
    inference(contradiction_clause,[status(thm)],[f986]) ).

fof(f988,plain,
    ( sQ5_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f374,f228]) ).

fof(f989,plain,
    sQ5_spl,
    inference(contradiction_clause,[status(thm)],[f988]) ).

fof(f990,plain,
    ( sQ167_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f970,f349]) ).

fof(f991,plain,
    sQ167_spl,
    inference(contradiction_clause,[status(thm)],[f990]) ).

fof(f992,plain,
    ( sQ163_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f956,f340]) ).

fof(f993,plain,
    sQ163_spl,
    inference(contradiction_clause,[status(thm)],[f992]) ).

fof(f994,plain,
    ( sQ86_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f672,f213]) ).

fof(f995,plain,
    sQ86_spl,
    inference(contradiction_clause,[status(thm)],[f994]) ).

fof(f996,plain,
    ( sQ82_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f658,f212]) ).

fof(f997,plain,
    sQ82_spl,
    inference(contradiction_clause,[status(thm)],[f996]) ).

fof(f998,plain,
    ( sQ78_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f644,f211]) ).

fof(f999,plain,
    sQ78_spl,
    inference(contradiction_clause,[status(thm)],[f998]) ).

fof(f1010,plain,
    ( sQ109_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f758,f343]) ).

fof(f1011,plain,
    sQ109_spl,
    inference(contradiction_clause,[status(thm)],[f1010]) ).

fof(f1013,plain,
    ! [X0,X1] :
      ( ~ sQ168_spl
      | ~ sQ89_spl
      | is_a_theorem(strict_implies(X0,X1))
      | ~ is_a_theorem(implies(X0,X1)) ),
    inference(paramodulation,[status(thm)],[f972,f681]) ).

fof(f1039,plain,
    ( sQ33_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f477,f223]) ).

fof(f1040,plain,
    sQ33_spl,
    inference(contradiction_clause,[status(thm)],[f1039]) ).

fof(f1049,plain,
    ( sQ21_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f433,f219]) ).

fof(f1050,plain,
    sQ21_spl,
    inference(contradiction_clause,[status(thm)],[f1049]) ).

fof(f1059,plain,
    ( sQ30_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f466,f222]) ).

fof(f1060,plain,
    sQ30_spl,
    inference(contradiction_clause,[status(thm)],[f1059]) ).

fof(f1067,plain,
    ( sQ12_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f400,f216]) ).

fof(f1068,plain,
    sQ12_spl,
    inference(contradiction_clause,[status(thm)],[f1067]) ).

fof(f1071,plain,
    ! [X0,X1,X2] :
      ( ~ sQ6_spl
      | ~ sQ1_spl
      | X1 = X2
      | ~ is_a_theorem(implies(X0,equiv(X1,X2)))
      | ~ is_a_theorem(X0) ),
    inference(resolution,[status(thm)],[f357,f376]) ).

fof(f1113,plain,
    ( sQ112_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f769,f344]) ).

fof(f1114,plain,
    sQ112_spl,
    inference(contradiction_clause,[status(thm)],[f1113]) ).

fof(f1118,plain,
    ! [X0] :
      ( ~ sQ1_spl
      | sQ50_spl
      | ~ is_a_theorem(implies(X0,implies(sK32_skl,and(sK32_skl,sK32_skl))))
      | ~ is_a_theorem(X0) ),
    inference(resolution,[status(thm)],[f539,f357]) ).

fof(f1185,plain,
    ! [X0,X1] :
      ( ~ sQ79_spl
      | ~ sQ83_spl
      | or(X0,X1) = implies(not(X0),X1) ),
    inference(forward_demodulation,[status(thm)],[f660,f646]) ).

fof(f1236,plain,
    ( sQ45_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f521,f227]) ).

fof(f1237,plain,
    sQ45_spl,
    inference(contradiction_clause,[status(thm)],[f1236]) ).

fof(f1315,plain,
    ( sQ36_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f488,f224]) ).

fof(f1316,plain,
    sQ36_spl,
    inference(contradiction_clause,[status(thm)],[f1315]) ).

fof(f1319,plain,
    ( sQ27_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f455,f221]) ).

fof(f1320,plain,
    sQ27_spl,
    inference(contradiction_clause,[status(thm)],[f1319]) ).

fof(f1333,plain,
    ( sQ15_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f411,f217]) ).

fof(f1334,plain,
    sQ15_spl,
    inference(contradiction_clause,[status(thm)],[f1333]) ).

fof(f1386,plain,
    ! [X0,X1] :
      ( ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | is_a_theorem(implies(or(X0,not(X1)),implies(X1,X0))) ),
    inference(forward_demodulation,[status(thm)],[f1185,f391]) ).

fof(f1393,plain,
    ( sQ9_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f389,f215]) ).

fof(f1394,plain,
    sQ9_spl,
    inference(contradiction_clause,[status(thm)],[f1393]) ).

fof(f1526,plain,
    ! [X0] :
      ( ~ sQ1_spl
      | sQ71_spl
      | ~ is_a_theorem(implies(X0,implies(or(sK47_skl,sK48_skl),or(sK48_skl,sK47_skl))))
      | ~ is_a_theorem(X0) ),
    inference(resolution,[status(thm)],[f618,f357]) ).

fof(f1951,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | is_a_theorem(implies(X1,X0))
      | ~ is_a_theorem(or(X0,not(X1))) ),
    inference(resolution,[status(thm)],[f1386,f357]) ).

fof(f1984,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | ~ sQ16_spl
      | is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(implies(X0,implies(X0,X1))) ),
    inference(resolution,[status(thm)],[f413,f357]) ).

fof(f1994,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | ~ sQ46_spl
      | is_a_theorem(implies(implies(X1,X0),equiv(X0,X1)))
      | ~ is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[status(thm)],[f523,f357]) ).

fof(f1997,plain,
    ! [X0,X1,X2] :
      ( ~ sQ1_spl
      | ~ sQ37_spl
      | is_a_theorem(implies(implies(X2,X1),implies(or(X0,X2),X1)))
      | ~ is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[status(thm)],[f490,f357]) ).

fof(f2367,plain,
    ( ~ sQ16_spl
    | ~ sQ1_spl
    | sQ50_spl
    | ~ is_a_theorem(implies(sK32_skl,implies(sK32_skl,and(sK32_skl,sK32_skl)))) ),
    inference(resolution,[status(thm)],[f1118,f413]) ).

fof(f2373,plain,
    ( ~ sQ16_spl
    | ~ sQ1_spl
    | sQ50_spl
    | ~ sQ28_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f2367,f457]) ).

fof(f2374,plain,
    ( ~ sQ16_spl
    | ~ sQ1_spl
    | sQ50_spl
    | ~ sQ28_spl ),
    inference(contradiction_clause,[status(thm)],[f2373]) ).

fof(f2376,plain,
    ! [X0] :
      ( ~ sQ1_spl
      | ~ sQ49_spl
      | is_a_theorem(and(X0,X0))
      | ~ is_a_theorem(X0) ),
    inference(resolution,[status(thm)],[f534,f357]) ).

fof(f2411,plain,
    ! [X0] :
      ( ~ sQ87_spl
      | ~ sQ1_spl
      | ~ sQ49_spl
      | is_a_theorem(equiv(X0,X0))
      | ~ is_a_theorem(implies(X0,X0)) ),
    inference(paramodulation,[status(thm)],[f674,f2376]) ).

fof(f4145,plain,
    ! [X0] :
      ( ~ sQ13_spl
      | ~ sQ1_spl
      | ~ sQ16_spl
      | is_a_theorem(implies(X0,X0)) ),
    inference(resolution,[status(thm)],[f1984,f402]) ).

fof(f4158,plain,
    ! [X0] :
      ( ~ sQ87_spl
      | ~ sQ1_spl
      | ~ sQ49_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | is_a_theorem(equiv(X0,X0)) ),
    inference(backward_subsumption_resolution,[status(thm)],[f2411,f4145]) ).

fof(f4194,plain,
    ! [X0] :
      ( ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ1_spl
      | ~ sQ16_spl
      | is_a_theorem(or(X0,not(X0))) ),
    inference(paramodulation,[status(thm)],[f1185,f4145]) ).

fof(f4379,plain,
    ! [X0,X1] :
      ( ~ sQ6_spl
      | ~ sQ1_spl
      | ~ sQ46_spl
      | X0 = X1
      | ~ is_a_theorem(implies(X1,X0))
      | ~ is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[status(thm)],[f1994,f1071]) ).

fof(f5186,plain,
    ( ~ sQ1_spl
    | sQ71_spl
    | ~ sQ37_spl
    | ~ is_a_theorem(implies(sK48_skl,or(sK48_skl,sK47_skl)))
    | ~ is_a_theorem(implies(sK47_skl,or(sK48_skl,sK47_skl))) ),
    inference(resolution,[status(thm)],[f1997,f1526]) ).

fof(f5199,definition,
    ( sQ213_spl
  <=> is_a_theorem(implies(sK47_skl,or(sK48_skl,sK47_skl))) ),
    introduced(definition,[new_symbols(definition,[sQ213_spl])],[split_symbol_definition]) ).

fof(f5201,plain,
    ( sQ213_spl
    | ~ is_a_theorem(implies(sK47_skl,or(sK48_skl,sK47_skl))) ),
    inference(component_clause,[status(thm)],[f5199]) ).

fof(f5202,definition,
    ( sQ214_spl
  <=> is_a_theorem(implies(sK48_skl,or(sK48_skl,sK47_skl))) ),
    introduced(definition,[new_symbols(definition,[sQ214_spl])],[split_symbol_definition]) ).

fof(f5204,plain,
    ( sQ214_spl
    | ~ is_a_theorem(implies(sK48_skl,or(sK48_skl,sK47_skl))) ),
    inference(component_clause,[status(thm)],[f5202]) ).

fof(f5205,plain,
    ( ~ sQ1_spl
    | sQ71_spl
    | ~ sQ37_spl
    | ~ sQ214_spl
    | ~ sQ213_spl ),
    inference(split_clause,[status(thm)],[f5186,f5199,f5202,f489,f616,f356]) ).

fof(f5235,plain,
    ( sQ213_spl
    | ~ sQ34_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f5201,f479]) ).

fof(f5236,plain,
    ( sQ213_spl
    | ~ sQ34_spl ),
    inference(contradiction_clause,[status(thm)],[f5235]) ).

fof(f5239,plain,
    ( sQ214_spl
    | ~ sQ31_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f5204,f468]) ).

fof(f5240,plain,
    ( sQ214_spl
    | ~ sQ31_spl ),
    inference(contradiction_clause,[status(thm)],[f5239]) ).

fof(f5344,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | ~ sQ70_spl
      | is_a_theorem(or(X1,X0))
      | ~ is_a_theorem(or(X0,X1)) ),
    inference(resolution,[status(thm)],[f613,f357]) ).

fof(f5405,plain,
    ! [X0] :
      ( ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ1_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | is_a_theorem(or(not(X0),X0)) ),
    inference(resolution,[status(thm)],[f5344,f4194]) ).

fof(f5427,plain,
    ! [X0] :
      ( ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | is_a_theorem(implies(X0,not(not(X0)))) ),
    inference(resolution,[status(thm)],[f5405,f1951]) ).

fof(f6477,plain,
    ! [X0] :
      ( ~ sQ113_spl
      | ~ sQ6_spl
      | ~ sQ1_spl
      | ~ sQ46_spl
      | necessarily(necessarily(X0)) = necessarily(X0)
      | ~ is_a_theorem(implies(necessarily(necessarily(X0)),necessarily(X0))) ),
    inference(resolution,[status(thm)],[f4379,f771]) ).

fof(f6504,plain,
    ! [X0] :
      ( ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | ~ sQ6_spl
      | ~ sQ46_spl
      | not(not(X0)) = X0
      | ~ is_a_theorem(implies(not(not(X0)),X0)) ),
    inference(resolution,[status(thm)],[f4379,f5427]) ).

fof(f6506,plain,
    ! [X0] :
      ( ~ sQ49_spl
      | ~ sQ6_spl
      | ~ sQ1_spl
      | ~ sQ46_spl
      | and(X0,X0) = X0
      | ~ is_a_theorem(implies(and(X0,X0),X0)) ),
    inference(resolution,[status(thm)],[f4379,f534]) ).

fof(f6540,plain,
    ! [X0] :
      ( ~ sQ113_spl
      | ~ sQ6_spl
      | ~ sQ1_spl
      | ~ sQ46_spl
      | ~ sQ110_spl
      | necessarily(necessarily(X0)) = necessarily(X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f6477,f760]) ).

fof(f6549,plain,
    ! [X0] :
      ( ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | ~ sQ6_spl
      | ~ sQ46_spl
      | not(not(X0)) = X0
      | ~ is_a_theorem(or(not(X0),X0)) ),
    inference(forward_demodulation,[status(thm)],[f1185,f6504]) ).

fof(f6550,plain,
    ! [X0] :
      ( ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | ~ sQ6_spl
      | ~ sQ46_spl
      | not(not(X0)) = X0 ),
    inference(forward_subsumption_resolution,[status(thm)],[f6549,f5405]) ).

fof(f6552,plain,
    ! [X0] :
      ( ~ sQ49_spl
      | ~ sQ6_spl
      | ~ sQ1_spl
      | ~ sQ46_spl
      | ~ sQ22_spl
      | and(X0,X0) = X0 ),
    inference(forward_subsumption_resolution,[status(thm)],[f6506,f435]) ).

fof(f6691,plain,
    ! [X0] :
      ( ~ sQ87_spl
      | ~ sQ49_spl
      | ~ sQ6_spl
      | ~ sQ1_spl
      | ~ sQ46_spl
      | ~ sQ22_spl
      | equiv(X0,X0) = implies(X0,X0) ),
    inference(paramodulation,[status(thm)],[f674,f6552]) ).

fof(f6810,plain,
    ! [X0] :
      ( ~ sQ164_spl
      | ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | ~ sQ6_spl
      | ~ sQ46_spl
      | not(possibly(X0)) = necessarily(not(X0)) ),
    inference(paramodulation,[status(thm)],[f958,f6550]) ).

fof(f14453,plain,
    ! [X0] :
      ( ~ sQ164_spl
      | ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | ~ sQ6_spl
      | ~ sQ46_spl
      | possibly(possibly(X0)) = not(necessarily(necessarily(not(X0)))) ),
    inference(paramodulation,[status(thm)],[f6810,f958]) ).

fof(f14472,plain,
    ! [X0] :
      ( ~ sQ164_spl
      | ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | ~ sQ6_spl
      | ~ sQ46_spl
      | ~ sQ113_spl
      | ~ sQ110_spl
      | possibly(possibly(X0)) = not(necessarily(not(X0))) ),
    inference(forward_demodulation,[status(thm)],[f6540,f14453]) ).

fof(f14473,plain,
    ! [X0] :
      ( ~ sQ164_spl
      | ~ sQ1_spl
      | ~ sQ10_spl
      | ~ sQ79_spl
      | ~ sQ83_spl
      | ~ sQ13_spl
      | ~ sQ16_spl
      | ~ sQ70_spl
      | ~ sQ6_spl
      | ~ sQ46_spl
      | ~ sQ113_spl
      | ~ sQ110_spl
      | possibly(possibly(X0)) = possibly(X0) ),
    inference(forward_demodulation,[status(thm)],[f958,f14472]) ).

fof(f14475,plain,
    ( sQ159_spl
    | ~ sQ164_spl
    | ~ sQ1_spl
    | ~ sQ10_spl
    | ~ sQ79_spl
    | ~ sQ83_spl
    | ~ sQ13_spl
    | ~ sQ16_spl
    | ~ sQ70_spl
    | ~ sQ6_spl
    | ~ sQ46_spl
    | ~ sQ113_spl
    | ~ sQ110_spl
    | ~ is_a_theorem(strict_implies(possibly(sK92_skl),possibly(sK92_skl))) ),
    inference(backward_demodulation,[status(thm)],[f14473,f941]) ).

fof(f15467,plain,
    ( ~ sQ168_spl
    | ~ sQ89_spl
    | sQ159_spl
    | ~ sQ164_spl
    | ~ sQ1_spl
    | ~ sQ10_spl
    | ~ sQ79_spl
    | ~ sQ83_spl
    | ~ sQ13_spl
    | ~ sQ16_spl
    | ~ sQ70_spl
    | ~ sQ6_spl
    | ~ sQ46_spl
    | ~ sQ113_spl
    | ~ sQ110_spl
    | ~ is_a_theorem(implies(possibly(sK92_skl),possibly(sK92_skl))) ),
    inference(resolution,[status(thm)],[f14475,f1013]) ).

fof(f15468,plain,
    ( ~ sQ168_spl
    | ~ sQ89_spl
    | sQ159_spl
    | ~ sQ164_spl
    | ~ sQ1_spl
    | ~ sQ10_spl
    | ~ sQ79_spl
    | ~ sQ83_spl
    | ~ sQ13_spl
    | ~ sQ16_spl
    | ~ sQ70_spl
    | ~ sQ6_spl
    | ~ sQ46_spl
    | ~ sQ113_spl
    | ~ sQ110_spl
    | ~ sQ87_spl
    | ~ sQ49_spl
    | ~ sQ22_spl
    | ~ is_a_theorem(equiv(possibly(sK92_skl),possibly(sK92_skl))) ),
    inference(forward_demodulation,[status(thm)],[f6691,f15467]) ).

fof(f15469,plain,
    ( ~ sQ168_spl
    | ~ sQ89_spl
    | sQ159_spl
    | ~ sQ164_spl
    | ~ sQ1_spl
    | ~ sQ10_spl
    | ~ sQ79_spl
    | ~ sQ83_spl
    | ~ sQ13_spl
    | ~ sQ16_spl
    | ~ sQ70_spl
    | ~ sQ6_spl
    | ~ sQ46_spl
    | ~ sQ113_spl
    | ~ sQ110_spl
    | ~ sQ87_spl
    | ~ sQ49_spl
    | ~ sQ22_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f15468,f4158]) ).

fof(f15470,plain,
    ( ~ sQ168_spl
    | ~ sQ89_spl
    | sQ159_spl
    | ~ sQ164_spl
    | ~ sQ1_spl
    | ~ sQ10_spl
    | ~ sQ79_spl
    | ~ sQ83_spl
    | ~ sQ13_spl
    | ~ sQ16_spl
    | ~ sQ70_spl
    | ~ sQ6_spl
    | ~ sQ46_spl
    | ~ sQ113_spl
    | ~ sQ110_spl
    | ~ sQ87_spl
    | ~ sQ49_spl
    | ~ sQ22_spl ),
    inference(contradiction_clause,[status(thm)],[f15469]) ).

fof(f15505,plain,
    ( ~ sQ157_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f933,f352]) ).

fof(f15506,plain,
    ~ sQ157_spl,
    inference(contradiction_clause,[status(thm)],[f15505]) ).

fof(f15507,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f359,f378,f393,f404,f415,f437,f459,f470,f481,f492,f525,f536,f540,f615,f619,f648,f662,f676,f683,f762,f773,f942,f960,f974,f985,f987,f989,f991,f993,f995,f997,f999,f1011,f1040,f1050,f1060,f1068,f1114,f1237,f1316,f1320,f1334,f1394,f2374,f5205,f5236,f5240,f15470,f15506]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : LCL548+1 : TPTP v9.3.1. Bugfixed v9.2.0.
% 0.00/0.04  % Command  : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.36  % Computer : n014.cluster.edu
% 0.10/0.36  % Model    : x86_64 x86_64
% 0.10/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36  % Memory   : 8046.5625MB
% 0.10/0.36  % OS       : Linux 6.8.0-71-generic
% 0.10/0.36  % CPULimit : 300
% 0.10/0.36  % WCLimit  : 300
% 0.10/0.36  % DateTime : Mon Sep 21 00:38:04 UTC 2026
% 0.10/0.37  % CPUTime  : 
% 0.10/0.38  % Drodi V4.1.1
% 7.95/1.54  % Refutation found
% 7.95/1.54  % SZS status Theorem for theBenchmark: Theorem is valid
% 7.95/1.54  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.85/1.60  % Elapsed time: 1.220439 seconds
% 0.85/1.60  % CPU time: 9.286256 seconds
% 0.85/1.60  % Total memory used: 228.547 MB
% 0.85/1.60  % Net memory used: 219.259 MB
%------------------------------------------------------------------------------