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Drodi---4.1.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : Drodi---4.1.1
% Problem  : LCL566+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 : n018.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 01:08:00 PM UTC 2026

% Result   : Theorem 107.34s 14.26s
% Output   : CNFRefutation 3.99s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   33
%            Number of leaves      :   57
% Syntax   : Number of formulae    :  254 (  44 unt;  29 def)
%            Number of atoms       : 1001 (  71 equ)
%            Maximal formula atoms :   15 (   3 avg)
%            Number of connectives : 1401 ( 654   ~; 665   |;  33   &)
%                                         (  41 <=>;   8  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   18 (   5 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :   46 (  44 usr;  44 prp; 0-2 aty)
%            Number of functors    :   24 (  24 usr;  16 con; 0-2 aty)
%            Number of variables   :  275 ( 257   !;  18   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ( op_or
   => ! [X,Y] : or(X,Y) = not(and(not(X),not(Y))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

fof(f8,axiom,
    ( adjunction
  <=> ! [X,Y] :
        ( ( is_a_theorem(Y)
          & is_a_theorem(X) )
       => is_a_theorem(and(X,Y)) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

fof(f19,axiom,
    ( axiom_m1
  <=> ! [X,Y] : is_a_theorem(strict_implies(and(X,Y),and(Y,X))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f20,axiom,
    ( axiom_m2
  <=> ! [X,Y] : is_a_theorem(strict_implies(and(X,Y),X)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f22,axiom,
    ( axiom_m4
  <=> ! [X] : is_a_theorem(strict_implies(X,and(X,X))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f23,axiom,
    ( axiom_m5
  <=> ! [X,Y,Z] : is_a_theorem(strict_implies(and(strict_implies(X,Y),strict_implies(Y,Z)),strict_implies(X,Z))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f24,axiom,
    ( axiom_m6
  <=> ! [X] : is_a_theorem(strict_implies(X,possibly(X))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f29,axiom,
    ( op_possibly
   => ! [X] : possibly(X) = not(necessarily(not(X))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

fof(f32,axiom,
    ( op_strict_equiv
   => ! [X,Y] : strict_equiv(X,Y) = and(strict_implies(X,Y),strict_implies(Y,X)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

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

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

fof(f39,axiom,
    modus_ponens_strict_implies,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

fof(f41,axiom,
    adjunction,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f42,axiom,
    axiom_m1,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f43,axiom,
    axiom_m2,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f45,axiom,
    axiom_m4,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f46,axiom,
    axiom_m5,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f47,axiom,
    axiom_m6,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f52,axiom,
    op_implies_and,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f55,conjecture,
    axiom_M,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f56,negated_conjecture,
    ~ axiom_M,
    inference(negated_conjecture,[status(cth)],[f55]) ).

fof(f57,plain,
    ( ! [X,Y] : or(X,Y) = not(and(not(X),not(Y)))
    | ~ op_or ),
    inference(pre_NNF_transformation,[status(thm)],[f1]) ).

fof(f58,plain,
    ! [X0,X1] :
      ( or(X0,X1) = not(and(not(X0),not(X1)))
      | ~ op_or ),
    inference(cnf_transformation,[status(thm)],[f57]) ).

fof(f61,plain,
    ( ! [X,Y] : implies(X,Y) = not(and(X,not(Y)))
    | ~ op_implies_and ),
    inference(pre_NNF_transformation,[status(thm)],[f3]) ).

fof(f62,plain,
    ! [X0,X1] :
      ( implies(X0,X1) = not(and(X0,not(X1)))
      | ~ op_implies_and ),
    inference(cnf_transformation,[status(thm)],[f61]) ).

fof(f73,plain,
    ( modus_ponens_strict_implies
  <=> ! [X,Y] :
        ( is_a_theorem(Y)
        | ~ is_a_theorem(strict_implies(X,Y))
        | ~ is_a_theorem(X) ) ),
    inference(pre_NNF_transformation,[status(thm)],[f7]) ).

fof(f74,plain,
    ( ( ? [X,Y] :
          ( ~ is_a_theorem(Y)
          & is_a_theorem(strict_implies(X,Y))
          & is_a_theorem(X) )
      | modus_ponens_strict_implies )
    & ( ! [X,Y] :
          ( is_a_theorem(Y)
          | ~ is_a_theorem(strict_implies(X,Y))
          | ~ is_a_theorem(X) )
      | ~ modus_ponens_strict_implies ) ),
    inference(NNF_transformation,[status(thm)],[f73]) ).

fof(f75,plain,
    ( ( ? [Y] :
          ( ~ is_a_theorem(Y)
          & ? [X] :
              ( is_a_theorem(strict_implies(X,Y))
              & is_a_theorem(X) ) )
      | modus_ponens_strict_implies )
    & ( ! [Y] :
          ( is_a_theorem(Y)
          | ! [X] :
              ( ~ is_a_theorem(strict_implies(X,Y))
              | ~ is_a_theorem(X) ) )
      | ~ modus_ponens_strict_implies ) ),
    inference(miniscoping,[status(thm)],[f74]) ).

fof(f76,plain,
    ( ( ( ~ is_a_theorem(sK1_skl)
        & is_a_theorem(strict_implies(sK2_skl,sK1_skl))
        & is_a_theorem(sK2_skl) )
      | modus_ponens_strict_implies )
    & ( ! [Y] :
          ( is_a_theorem(Y)
          | ! [X] :
              ( ~ is_a_theorem(strict_implies(X,Y))
              | ~ is_a_theorem(X) ) )
      | ~ modus_ponens_strict_implies ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK1_skl,sK2_skl]),skolemize(Y,sK1_skl),skolemize(X,sK2_skl)],[f75]) ).

fof(f77,plain,
    ! [X0,X1] :
      ( is_a_theorem(X1)
      | ~ is_a_theorem(strict_implies(X0,X1))
      | ~ is_a_theorem(X0)
      | ~ modus_ponens_strict_implies ),
    inference(cnf_transformation,[status(thm)],[f76]) ).

fof(f81,plain,
    ( adjunction
  <=> ! [X,Y] :
        ( is_a_theorem(and(X,Y))
        | ~ is_a_theorem(Y)
        | ~ is_a_theorem(X) ) ),
    inference(pre_NNF_transformation,[status(thm)],[f8]) ).

fof(f82,plain,
    ( ( ? [X,Y] :
          ( ~ is_a_theorem(and(X,Y))
          & is_a_theorem(Y)
          & is_a_theorem(X) )
      | adjunction )
    & ( ! [X,Y] :
          ( is_a_theorem(and(X,Y))
          | ~ is_a_theorem(Y)
          | ~ is_a_theorem(X) )
      | ~ adjunction ) ),
    inference(NNF_transformation,[status(thm)],[f81]) ).

fof(f83,plain,
    ( ( ( ~ is_a_theorem(and(sK3_skl,sK4_skl))
        & is_a_theorem(sK4_skl)
        & is_a_theorem(sK3_skl) )
      | adjunction )
    & ( ! [X,Y] :
          ( is_a_theorem(and(X,Y))
          | ~ is_a_theorem(Y)
          | ~ is_a_theorem(X) )
      | ~ adjunction ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK3_skl,sK4_skl]),skolemize(X,sK3_skl),skolemize(Y,sK4_skl)],[f82]) ).

fof(f84,plain,
    ! [X0,X1] :
      ( is_a_theorem(and(X0,X1))
      | ~ is_a_theorem(X1)
      | ~ is_a_theorem(X0)
      | ~ adjunction ),
    inference(cnf_transformation,[status(thm)],[f83]) ).

fof(f88,plain,
    ( substitution_strict_equiv
  <=> ! [X,Y] :
        ( X = Y
        | ~ is_a_theorem(strict_equiv(X,Y)) ) ),
    inference(pre_NNF_transformation,[status(thm)],[f9]) ).

fof(f89,plain,
    ( ( ? [X,Y] :
          ( X != Y
          & is_a_theorem(strict_equiv(X,Y)) )
      | substitution_strict_equiv )
    & ( ! [X,Y] :
          ( X = Y
          | ~ is_a_theorem(strict_equiv(X,Y)) )
      | ~ substitution_strict_equiv ) ),
    inference(NNF_transformation,[status(thm)],[f88]) ).

fof(f90,plain,
    ( ( ( sK5_skl != sK6_skl
        & is_a_theorem(strict_equiv(sK5_skl,sK6_skl)) )
      | substitution_strict_equiv )
    & ( ! [X,Y] :
          ( X = Y
          | ~ is_a_theorem(strict_equiv(X,Y)) )
      | ~ substitution_strict_equiv ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK5_skl,sK6_skl]),skolemize(X,sK5_skl),skolemize(Y,sK6_skl)],[f89]) ).

fof(f91,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ is_a_theorem(strict_equiv(X0,X1))
      | ~ substitution_strict_equiv ),
    inference(cnf_transformation,[status(thm)],[f90]) ).

fof(f98,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)],[f11]) ).

fof(f99,plain,
    ( ( ~ is_a_theorem(implies(necessarily(sK9_skl),sK9_skl))
      | axiom_M )
    & ( ! [X] : is_a_theorem(implies(necessarily(X),X))
      | ~ axiom_M ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK9_skl]),skolemize(X,sK9_skl)],[f98]) ).

fof(f101,plain,
    ( ~ is_a_theorem(implies(necessarily(sK9_skl),sK9_skl))
    | axiom_M ),
    inference(cnf_transformation,[status(thm)],[f99]) ).

fof(f130,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(strict_implies(and(X,Y),and(Y,X)))
      | axiom_m1 )
    & ( ! [X,Y] : is_a_theorem(strict_implies(and(X,Y),and(Y,X)))
      | ~ axiom_m1 ) ),
    inference(NNF_transformation,[status(thm)],[f19]) ).

fof(f131,plain,
    ( ( ~ is_a_theorem(strict_implies(and(sK21_skl,sK22_skl),and(sK22_skl,sK21_skl)))
      | axiom_m1 )
    & ( ! [X,Y] : is_a_theorem(strict_implies(and(X,Y),and(Y,X)))
      | ~ axiom_m1 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK21_skl,sK22_skl]),skolemize(X,sK21_skl),skolemize(Y,sK22_skl)],[f130]) ).

fof(f132,plain,
    ! [X0,X1] :
      ( is_a_theorem(strict_implies(and(X0,X1),and(X1,X0)))
      | ~ axiom_m1 ),
    inference(cnf_transformation,[status(thm)],[f131]) ).

fof(f134,plain,
    ( ( ? [X,Y] : ~ is_a_theorem(strict_implies(and(X,Y),X))
      | axiom_m2 )
    & ( ! [X,Y] : is_a_theorem(strict_implies(and(X,Y),X))
      | ~ axiom_m2 ) ),
    inference(NNF_transformation,[status(thm)],[f20]) ).

fof(f135,plain,
    ( ( ~ is_a_theorem(strict_implies(and(sK23_skl,sK24_skl),sK23_skl))
      | axiom_m2 )
    & ( ! [X,Y] : is_a_theorem(strict_implies(and(X,Y),X))
      | ~ axiom_m2 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK23_skl,sK24_skl]),skolemize(X,sK23_skl),skolemize(Y,sK24_skl)],[f134]) ).

fof(f136,plain,
    ! [X0,X1] :
      ( is_a_theorem(strict_implies(and(X0,X1),X0))
      | ~ axiom_m2 ),
    inference(cnf_transformation,[status(thm)],[f135]) ).

fof(f142,plain,
    ( ( ? [X] : ~ is_a_theorem(strict_implies(X,and(X,X)))
      | axiom_m4 )
    & ( ! [X] : is_a_theorem(strict_implies(X,and(X,X)))
      | ~ axiom_m4 ) ),
    inference(NNF_transformation,[status(thm)],[f22]) ).

fof(f143,plain,
    ( ( ~ is_a_theorem(strict_implies(sK28_skl,and(sK28_skl,sK28_skl)))
      | axiom_m4 )
    & ( ! [X] : is_a_theorem(strict_implies(X,and(X,X)))
      | ~ axiom_m4 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK28_skl]),skolemize(X,sK28_skl)],[f142]) ).

fof(f144,plain,
    ! [X0] :
      ( is_a_theorem(strict_implies(X0,and(X0,X0)))
      | ~ axiom_m4 ),
    inference(cnf_transformation,[status(thm)],[f143]) ).

fof(f146,plain,
    ( ( ? [X,Y,Z] : ~ is_a_theorem(strict_implies(and(strict_implies(X,Y),strict_implies(Y,Z)),strict_implies(X,Z)))
      | axiom_m5 )
    & ( ! [X,Y,Z] : is_a_theorem(strict_implies(and(strict_implies(X,Y),strict_implies(Y,Z)),strict_implies(X,Z)))
      | ~ axiom_m5 ) ),
    inference(NNF_transformation,[status(thm)],[f23]) ).

fof(f147,plain,
    ( ( ~ is_a_theorem(strict_implies(and(strict_implies(sK29_skl,sK30_skl),strict_implies(sK30_skl,sK31_skl)),strict_implies(sK29_skl,sK31_skl)))
      | axiom_m5 )
    & ( ! [X,Y,Z] : is_a_theorem(strict_implies(and(strict_implies(X,Y),strict_implies(Y,Z)),strict_implies(X,Z)))
      | ~ axiom_m5 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK29_skl,sK30_skl,sK31_skl]),skolemize(X,sK29_skl),skolemize(Y,sK30_skl),skolemize(Z,sK31_skl)],[f146]) ).

fof(f148,plain,
    ! [X0,X1,X2] :
      ( is_a_theorem(strict_implies(and(strict_implies(X0,X1),strict_implies(X1,X2)),strict_implies(X0,X2)))
      | ~ axiom_m5 ),
    inference(cnf_transformation,[status(thm)],[f147]) ).

fof(f150,plain,
    ( ( ? [X] : ~ is_a_theorem(strict_implies(X,possibly(X)))
      | axiom_m6 )
    & ( ! [X] : is_a_theorem(strict_implies(X,possibly(X)))
      | ~ axiom_m6 ) ),
    inference(NNF_transformation,[status(thm)],[f24]) ).

fof(f151,plain,
    ( ( ~ is_a_theorem(strict_implies(sK32_skl,possibly(sK32_skl)))
      | axiom_m6 )
    & ( ! [X] : is_a_theorem(strict_implies(X,possibly(X)))
      | ~ axiom_m6 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK32_skl]),skolemize(X,sK32_skl)],[f150]) ).

fof(f152,plain,
    ! [X0] :
      ( is_a_theorem(strict_implies(X0,possibly(X0)))
      | ~ axiom_m6 ),
    inference(cnf_transformation,[status(thm)],[f151]) ).

fof(f170,plain,
    ( ! [X] : possibly(X) = not(necessarily(not(X)))
    | ~ op_possibly ),
    inference(pre_NNF_transformation,[status(thm)],[f29]) ).

fof(f171,plain,
    ! [X0] :
      ( possibly(X0) = not(necessarily(not(X0)))
      | ~ op_possibly ),
    inference(cnf_transformation,[status(thm)],[f170]) ).

fof(f174,plain,
    ( ! [X,Y] : strict_implies(X,Y) = necessarily(implies(X,Y))
    | ~ op_strict_implies ),
    inference(pre_NNF_transformation,[status(thm)],[f31]) ).

fof(f175,plain,
    ! [X0,X1] :
      ( strict_implies(X0,X1) = necessarily(implies(X0,X1))
      | ~ op_strict_implies ),
    inference(cnf_transformation,[status(thm)],[f174]) ).

fof(f176,plain,
    ( ! [X,Y] : strict_equiv(X,Y) = and(strict_implies(X,Y),strict_implies(Y,X))
    | ~ op_strict_equiv ),
    inference(pre_NNF_transformation,[status(thm)],[f32]) ).

fof(f177,plain,
    ! [X0,X1] :
      ( strict_equiv(X0,X1) = and(strict_implies(X0,X1),strict_implies(X1,X0))
      | ~ op_strict_equiv ),
    inference(cnf_transformation,[status(thm)],[f176]) ).

fof(f178,plain,
    op_possibly,
    inference(cnf_transformation,[status(thm)],[f33]) ).

fof(f179,plain,
    op_or,
    inference(cnf_transformation,[status(thm)],[f34]) ).

fof(f181,plain,
    op_strict_implies,
    inference(cnf_transformation,[status(thm)],[f36]) ).

fof(f183,plain,
    op_strict_equiv,
    inference(cnf_transformation,[status(thm)],[f38]) ).

fof(f184,plain,
    modus_ponens_strict_implies,
    inference(cnf_transformation,[status(thm)],[f39]) ).

fof(f185,plain,
    substitution_strict_equiv,
    inference(cnf_transformation,[status(thm)],[f40]) ).

fof(f186,plain,
    adjunction,
    inference(cnf_transformation,[status(thm)],[f41]) ).

fof(f187,plain,
    axiom_m1,
    inference(cnf_transformation,[status(thm)],[f42]) ).

fof(f188,plain,
    axiom_m2,
    inference(cnf_transformation,[status(thm)],[f43]) ).

fof(f190,plain,
    axiom_m4,
    inference(cnf_transformation,[status(thm)],[f45]) ).

fof(f191,plain,
    axiom_m5,
    inference(cnf_transformation,[status(thm)],[f46]) ).

fof(f192,plain,
    axiom_m6,
    inference(cnf_transformation,[status(thm)],[f47]) ).

fof(f197,plain,
    op_implies_and,
    inference(cnf_transformation,[status(thm)],[f52]) ).

fof(f200,plain,
    ~ axiom_M,
    inference(cnf_transformation,[status(thm)],[f56]) ).

fof(f201,definition,
    ( sQ0_spl
  <=> op_or ),
    introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).

fof(f203,plain,
    ( sQ0_spl
    | ~ op_or ),
    inference(component_clause,[status(thm)],[f201]) ).

fof(f204,definition,
    ! [X0,X1] :
      ( sQ1_spl
    <=> or(X0,X1) = not(and(not(X0),not(X1))) ),
    introduced(definition,[new_symbols(definition,[sQ1_spl])],[split_symbol_definition]) ).

fof(f205,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | or(X0,X1) = not(and(not(X0),not(X1))) ),
    inference(component_clause,[status(thm)],[f204]) ).

fof(f207,plain,
    ( sQ1_spl
    | ~ sQ0_spl ),
    inference(split_clause,[status(thm)],[f58,f201,f204]) ).

fof(f215,definition,
    ( sQ4_spl
  <=> op_implies_and ),
    introduced(definition,[new_symbols(definition,[sQ4_spl])],[split_symbol_definition]) ).

fof(f217,plain,
    ( sQ4_spl
    | ~ op_implies_and ),
    inference(component_clause,[status(thm)],[f215]) ).

fof(f218,definition,
    ! [X0,X1] :
      ( sQ5_spl
    <=> implies(X0,X1) = not(and(X0,not(X1))) ),
    introduced(definition,[new_symbols(definition,[sQ5_spl])],[split_symbol_definition]) ).

fof(f219,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | implies(X0,X1) = not(and(X0,not(X1))) ),
    inference(component_clause,[status(thm)],[f218]) ).

fof(f221,plain,
    ( sQ5_spl
    | ~ sQ4_spl ),
    inference(split_clause,[status(thm)],[f62,f215,f218]) ).

fof(f251,definition,
    ( sQ14_spl
  <=> modus_ponens_strict_implies ),
    introduced(definition,[new_symbols(definition,[sQ14_spl])],[split_symbol_definition]) ).

fof(f253,plain,
    ( sQ14_spl
    | ~ modus_ponens_strict_implies ),
    inference(component_clause,[status(thm)],[f251]) ).

fof(f254,definition,
    ! [X0,X1] :
      ( sQ15_spl
    <=> ( is_a_theorem(X1)
        | ~ is_a_theorem(strict_implies(X0,X1))
        | ~ is_a_theorem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ15_spl])],[split_symbol_definition]) ).

fof(f255,plain,
    ! [X0,X1] :
      ( ~ sQ15_spl
      | is_a_theorem(X1)
      | ~ is_a_theorem(strict_implies(X0,X1))
      | ~ is_a_theorem(X0) ),
    inference(component_clause,[status(thm)],[f254]) ).

fof(f257,plain,
    ( sQ15_spl
    | ~ sQ14_spl ),
    inference(split_clause,[status(thm)],[f77,f251,f254]) ).

fof(f270,definition,
    ( sQ19_spl
  <=> adjunction ),
    introduced(definition,[new_symbols(definition,[sQ19_spl])],[split_symbol_definition]) ).

fof(f272,plain,
    ( sQ19_spl
    | ~ adjunction ),
    inference(component_clause,[status(thm)],[f270]) ).

fof(f273,definition,
    ! [X0,X1] :
      ( sQ20_spl
    <=> ( is_a_theorem(and(X0,X1))
        | ~ is_a_theorem(X1)
        | ~ is_a_theorem(X0) ) ),
    introduced(definition,[new_symbols(definition,[sQ20_spl])],[split_symbol_definition]) ).

fof(f274,plain,
    ! [X0,X1] :
      ( ~ sQ20_spl
      | is_a_theorem(and(X0,X1))
      | ~ is_a_theorem(X1)
      | ~ is_a_theorem(X0) ),
    inference(component_clause,[status(thm)],[f273]) ).

fof(f276,plain,
    ( sQ20_spl
    | ~ sQ19_spl ),
    inference(split_clause,[status(thm)],[f84,f270,f273]) ).

fof(f289,definition,
    ( sQ24_spl
  <=> substitution_strict_equiv ),
    introduced(definition,[new_symbols(definition,[sQ24_spl])],[split_symbol_definition]) ).

fof(f291,plain,
    ( sQ24_spl
    | ~ substitution_strict_equiv ),
    inference(component_clause,[status(thm)],[f289]) ).

fof(f292,definition,
    ! [X0,X1] :
      ( sQ25_spl
    <=> ( X0 = X1
        | ~ is_a_theorem(strict_equiv(X0,X1)) ) ),
    introduced(definition,[new_symbols(definition,[sQ25_spl])],[split_symbol_definition]) ).

fof(f293,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | X0 = X1
      | ~ is_a_theorem(strict_equiv(X0,X1)) ),
    inference(component_clause,[status(thm)],[f292]) ).

fof(f295,plain,
    ( sQ25_spl
    | ~ sQ24_spl ),
    inference(split_clause,[status(thm)],[f91,f289,f292]) ).

fof(f315,definition,
    ( sQ31_spl
  <=> axiom_M ),
    introduced(definition,[new_symbols(definition,[sQ31_spl])],[split_symbol_definition]) ).

fof(f316,plain,
    ( ~ sQ31_spl
    | axiom_M ),
    inference(component_clause,[status(thm)],[f315]) ).

fof(f318,definition,
    ! [X0] :
      ( sQ32_spl
    <=> is_a_theorem(implies(necessarily(X0),X0)) ),
    introduced(definition,[new_symbols(definition,[sQ32_spl])],[split_symbol_definition]) ).

fof(f319,plain,
    ! [X0] :
      ( ~ sQ32_spl
      | is_a_theorem(implies(necessarily(X0),X0)) ),
    inference(component_clause,[status(thm)],[f318]) ).

fof(f322,definition,
    ( sQ33_spl
  <=> is_a_theorem(implies(necessarily(sK9_skl),sK9_skl)) ),
    introduced(definition,[new_symbols(definition,[sQ33_spl])],[split_symbol_definition]) ).

fof(f324,plain,
    ( sQ33_spl
    | ~ is_a_theorem(implies(necessarily(sK9_skl),sK9_skl)) ),
    inference(component_clause,[status(thm)],[f322]) ).

fof(f325,plain,
    ( ~ sQ33_spl
    | sQ31_spl ),
    inference(split_clause,[status(thm)],[f101,f315,f322]) ).

fof(f403,definition,
    ( sQ55_spl
  <=> axiom_m1 ),
    introduced(definition,[new_symbols(definition,[sQ55_spl])],[split_symbol_definition]) ).

fof(f405,plain,
    ( sQ55_spl
    | ~ axiom_m1 ),
    inference(component_clause,[status(thm)],[f403]) ).

fof(f406,definition,
    ! [X0,X1] :
      ( sQ56_spl
    <=> is_a_theorem(strict_implies(and(X0,X1),and(X1,X0))) ),
    introduced(definition,[new_symbols(definition,[sQ56_spl])],[split_symbol_definition]) ).

fof(f407,plain,
    ! [X0,X1] :
      ( ~ sQ56_spl
      | is_a_theorem(strict_implies(and(X0,X1),and(X1,X0))) ),
    inference(component_clause,[status(thm)],[f406]) ).

fof(f409,plain,
    ( sQ56_spl
    | ~ sQ55_spl ),
    inference(split_clause,[status(thm)],[f132,f403,f406]) ).

fof(f414,definition,
    ( sQ58_spl
  <=> axiom_m2 ),
    introduced(definition,[new_symbols(definition,[sQ58_spl])],[split_symbol_definition]) ).

fof(f416,plain,
    ( sQ58_spl
    | ~ axiom_m2 ),
    inference(component_clause,[status(thm)],[f414]) ).

fof(f417,definition,
    ! [X0,X1] :
      ( sQ59_spl
    <=> is_a_theorem(strict_implies(and(X0,X1),X0)) ),
    introduced(definition,[new_symbols(definition,[sQ59_spl])],[split_symbol_definition]) ).

fof(f418,plain,
    ! [X0,X1] :
      ( ~ sQ59_spl
      | is_a_theorem(strict_implies(and(X0,X1),X0)) ),
    inference(component_clause,[status(thm)],[f417]) ).

fof(f420,plain,
    ( sQ59_spl
    | ~ sQ58_spl ),
    inference(split_clause,[status(thm)],[f136,f414,f417]) ).

fof(f436,definition,
    ( sQ64_spl
  <=> axiom_m4 ),
    introduced(definition,[new_symbols(definition,[sQ64_spl])],[split_symbol_definition]) ).

fof(f438,plain,
    ( sQ64_spl
    | ~ axiom_m4 ),
    inference(component_clause,[status(thm)],[f436]) ).

fof(f439,definition,
    ! [X0] :
      ( sQ65_spl
    <=> is_a_theorem(strict_implies(X0,and(X0,X0))) ),
    introduced(definition,[new_symbols(definition,[sQ65_spl])],[split_symbol_definition]) ).

fof(f440,plain,
    ! [X0] :
      ( ~ sQ65_spl
      | is_a_theorem(strict_implies(X0,and(X0,X0))) ),
    inference(component_clause,[status(thm)],[f439]) ).

fof(f442,plain,
    ( sQ65_spl
    | ~ sQ64_spl ),
    inference(split_clause,[status(thm)],[f144,f436,f439]) ).

fof(f447,definition,
    ( sQ67_spl
  <=> axiom_m5 ),
    introduced(definition,[new_symbols(definition,[sQ67_spl])],[split_symbol_definition]) ).

fof(f449,plain,
    ( sQ67_spl
    | ~ axiom_m5 ),
    inference(component_clause,[status(thm)],[f447]) ).

fof(f450,definition,
    ! [X0,X1,X2] :
      ( sQ68_spl
    <=> is_a_theorem(strict_implies(and(strict_implies(X0,X1),strict_implies(X1,X2)),strict_implies(X0,X2))) ),
    introduced(definition,[new_symbols(definition,[sQ68_spl])],[split_symbol_definition]) ).

fof(f451,plain,
    ! [X0,X1,X2] :
      ( ~ sQ68_spl
      | is_a_theorem(strict_implies(and(strict_implies(X0,X1),strict_implies(X1,X2)),strict_implies(X0,X2))) ),
    inference(component_clause,[status(thm)],[f450]) ).

fof(f453,plain,
    ( sQ68_spl
    | ~ sQ67_spl ),
    inference(split_clause,[status(thm)],[f148,f447,f450]) ).

fof(f458,definition,
    ( sQ70_spl
  <=> axiom_m6 ),
    introduced(definition,[new_symbols(definition,[sQ70_spl])],[split_symbol_definition]) ).

fof(f460,plain,
    ( sQ70_spl
    | ~ axiom_m6 ),
    inference(component_clause,[status(thm)],[f458]) ).

fof(f461,definition,
    ! [X0] :
      ( sQ71_spl
    <=> is_a_theorem(strict_implies(X0,possibly(X0))) ),
    introduced(definition,[new_symbols(definition,[sQ71_spl])],[split_symbol_definition]) ).

fof(f462,plain,
    ! [X0] :
      ( ~ sQ71_spl
      | is_a_theorem(strict_implies(X0,possibly(X0))) ),
    inference(component_clause,[status(thm)],[f461]) ).

fof(f464,plain,
    ( sQ71_spl
    | ~ sQ70_spl ),
    inference(split_clause,[status(thm)],[f152,f458,f461]) ).

fof(f513,definition,
    ( sQ85_spl
  <=> op_possibly ),
    introduced(definition,[new_symbols(definition,[sQ85_spl])],[split_symbol_definition]) ).

fof(f515,plain,
    ( sQ85_spl
    | ~ op_possibly ),
    inference(component_clause,[status(thm)],[f513]) ).

fof(f516,definition,
    ! [X0] :
      ( sQ86_spl
    <=> possibly(X0) = not(necessarily(not(X0))) ),
    introduced(definition,[new_symbols(definition,[sQ86_spl])],[split_symbol_definition]) ).

fof(f517,plain,
    ! [X0] :
      ( ~ sQ86_spl
      | possibly(X0) = not(necessarily(not(X0))) ),
    inference(component_clause,[status(thm)],[f516]) ).

fof(f519,plain,
    ( sQ86_spl
    | ~ sQ85_spl ),
    inference(split_clause,[status(thm)],[f171,f513,f516]) ).

fof(f527,definition,
    ( sQ89_spl
  <=> op_strict_implies ),
    introduced(definition,[new_symbols(definition,[sQ89_spl])],[split_symbol_definition]) ).

fof(f529,plain,
    ( sQ89_spl
    | ~ op_strict_implies ),
    inference(component_clause,[status(thm)],[f527]) ).

fof(f530,definition,
    ! [X0,X1] :
      ( sQ90_spl
    <=> strict_implies(X0,X1) = necessarily(implies(X0,X1)) ),
    introduced(definition,[new_symbols(definition,[sQ90_spl])],[split_symbol_definition]) ).

fof(f531,plain,
    ! [X0,X1] :
      ( ~ sQ90_spl
      | strict_implies(X0,X1) = necessarily(implies(X0,X1)) ),
    inference(component_clause,[status(thm)],[f530]) ).

fof(f533,plain,
    ( sQ90_spl
    | ~ sQ89_spl ),
    inference(split_clause,[status(thm)],[f175,f527,f530]) ).

fof(f534,definition,
    ( sQ91_spl
  <=> op_strict_equiv ),
    introduced(definition,[new_symbols(definition,[sQ91_spl])],[split_symbol_definition]) ).

fof(f536,plain,
    ( sQ91_spl
    | ~ op_strict_equiv ),
    inference(component_clause,[status(thm)],[f534]) ).

fof(f537,definition,
    ! [X0,X1] :
      ( sQ92_spl
    <=> strict_equiv(X0,X1) = and(strict_implies(X0,X1),strict_implies(X1,X0)) ),
    introduced(definition,[new_symbols(definition,[sQ92_spl])],[split_symbol_definition]) ).

fof(f538,plain,
    ! [X0,X1] :
      ( ~ sQ92_spl
      | strict_equiv(X0,X1) = and(strict_implies(X0,X1),strict_implies(X1,X0)) ),
    inference(component_clause,[status(thm)],[f537]) ).

fof(f540,plain,
    ( sQ92_spl
    | ~ sQ91_spl ),
    inference(split_clause,[status(thm)],[f177,f534,f537]) ).

fof(f541,plain,
    ( sQ91_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f536,f183]) ).

fof(f542,plain,
    sQ91_spl,
    inference(contradiction_clause,[status(thm)],[f541]) ).

fof(f543,plain,
    ( sQ19_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f272,f186]) ).

fof(f544,plain,
    sQ19_spl,
    inference(contradiction_clause,[status(thm)],[f543]) ).

fof(f545,plain,
    ( sQ14_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f253,f184]) ).

fof(f546,plain,
    sQ14_spl,
    inference(contradiction_clause,[status(thm)],[f545]) ).

fof(f547,plain,
    ( sQ24_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f291,f185]) ).

fof(f548,plain,
    sQ24_spl,
    inference(contradiction_clause,[status(thm)],[f547]) ).

fof(f549,plain,
    ( sQ89_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f529,f181]) ).

fof(f550,plain,
    sQ89_spl,
    inference(contradiction_clause,[status(thm)],[f549]) ).

fof(f551,plain,
    ( sQ85_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f515,f178]) ).

fof(f552,plain,
    sQ85_spl,
    inference(contradiction_clause,[status(thm)],[f551]) ).

fof(f555,plain,
    ( sQ4_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f217,f197]) ).

fof(f556,plain,
    sQ4_spl,
    inference(contradiction_clause,[status(thm)],[f555]) ).

fof(f557,plain,
    ( sQ0_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f203,f179]) ).

fof(f558,plain,
    sQ0_spl,
    inference(contradiction_clause,[status(thm)],[f557]) ).

fof(f566,plain,
    ( sQ70_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f460,f192]) ).

fof(f567,plain,
    sQ70_spl,
    inference(contradiction_clause,[status(thm)],[f566]) ).

fof(f568,plain,
    ( sQ33_spl
    | ~ sQ32_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f324,f319]) ).

fof(f569,plain,
    ( sQ33_spl
    | ~ sQ32_spl ),
    inference(contradiction_clause,[status(thm)],[f568]) ).

fof(f578,plain,
    ( sQ64_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f438,f190]) ).

fof(f579,plain,
    sQ64_spl,
    inference(contradiction_clause,[status(thm)],[f578]) ).

fof(f583,plain,
    ( sQ58_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f416,f188]) ).

fof(f584,plain,
    sQ58_spl,
    inference(contradiction_clause,[status(thm)],[f583]) ).

fof(f586,plain,
    ! [X0,X1] :
      ( ~ sQ92_spl
      | ~ sQ56_spl
      | is_a_theorem(strict_implies(strict_equiv(X0,X1),and(strict_implies(X1,X0),strict_implies(X0,X1)))) ),
    inference(paramodulation,[status(thm)],[f538,f407]) ).

fof(f588,plain,
    ! [X0,X1] :
      ( ~ sQ92_spl
      | ~ sQ56_spl
      | is_a_theorem(strict_implies(strict_equiv(X0,X1),strict_equiv(X1,X0))) ),
    inference(forward_demodulation,[status(thm)],[f538,f586]) ).

fof(f601,plain,
    ! [X0,X1] :
      ( ~ sQ92_spl
      | ~ sQ68_spl
      | is_a_theorem(strict_implies(strict_equiv(X0,X1),strict_implies(X0,X0))) ),
    inference(paramodulation,[status(thm)],[f538,f451]) ).

fof(f603,plain,
    ( sQ67_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f449,f191]) ).

fof(f604,plain,
    sQ67_spl,
    inference(contradiction_clause,[status(thm)],[f603]) ).

fof(f613,plain,
    ( sQ55_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f405,f187]) ).

fof(f614,plain,
    sQ55_spl,
    inference(contradiction_clause,[status(thm)],[f613]) ).

fof(f619,plain,
    ! [X0,X1] :
      ( ~ sQ92_spl
      | ~ sQ20_spl
      | is_a_theorem(strict_equiv(X0,X1))
      | ~ is_a_theorem(strict_implies(X1,X0))
      | ~ is_a_theorem(strict_implies(X0,X1)) ),
    inference(paramodulation,[status(thm)],[f538,f274]) ).

fof(f636,plain,
    ! [X0,X1] :
      ( ~ sQ86_spl
      | ~ sQ5_spl
      | implies(X0,necessarily(not(X1))) = not(and(X0,possibly(X1))) ),
    inference(paramodulation,[status(thm)],[f517,f219]) ).

fof(f642,plain,
    ! [X0,X1] :
      ( ~ sQ15_spl
      | ~ sQ92_spl
      | ~ sQ68_spl
      | is_a_theorem(strict_implies(X0,X0))
      | ~ is_a_theorem(strict_equiv(X0,X1)) ),
    inference(resolution,[status(thm)],[f601,f255]) ).

fof(f648,plain,
    ! [X0,X1] :
      ( ~ sQ15_spl
      | ~ sQ92_spl
      | ~ sQ56_spl
      | is_a_theorem(strict_equiv(X1,X0))
      | ~ is_a_theorem(strict_equiv(X0,X1)) ),
    inference(resolution,[status(thm)],[f588,f255]) ).

fof(f663,plain,
    ! [X0,X1] :
      ( ~ sQ15_spl
      | ~ sQ92_spl
      | ~ sQ68_spl
      | ~ sQ56_spl
      | is_a_theorem(strict_implies(X1,X1))
      | ~ is_a_theorem(strict_equiv(X0,X1)) ),
    inference(resolution,[status(thm)],[f648,f642]) ).

fof(f710,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | ~ sQ5_spl
      | or(X0,X1) = implies(not(X0),X1) ),
    inference(forward_demodulation,[status(thm)],[f219,f205]) ).

fof(f711,plain,
    ! [X0,X1,X2] :
      ( ~ sQ5_spl
      | ~ sQ1_spl
      | or(and(X0,not(X1)),X2) = implies(implies(X0,X1),X2) ),
    inference(paramodulation,[status(thm)],[f219,f710]) ).

fof(f712,plain,
    ! [X0,X1] :
      ( ~ sQ86_spl
      | ~ sQ1_spl
      | ~ sQ5_spl
      | or(necessarily(not(X0)),X1) = implies(possibly(X0),X1) ),
    inference(paramodulation,[status(thm)],[f517,f710]) ).

fof(f715,plain,
    ! [X0,X1] :
      ( ~ sQ1_spl
      | ~ sQ5_spl
      | ~ sQ90_spl
      | strict_implies(not(X0),X1) = necessarily(or(X0,X1)) ),
    inference(paramodulation,[status(thm)],[f710,f531]) ).

fof(f727,plain,
    ! [X0,X1,X2] :
      ( ~ sQ15_spl
      | ~ sQ68_spl
      | is_a_theorem(strict_implies(X0,X2))
      | ~ is_a_theorem(and(strict_implies(X0,X1),strict_implies(X1,X2))) ),
    inference(resolution,[status(thm)],[f451,f255]) ).

fof(f850,plain,
    ! [X0,X1] :
      ( ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | is_a_theorem(strict_equiv(and(X0,X1),and(X1,X0)))
      | ~ is_a_theorem(strict_implies(and(X0,X1),and(X1,X0))) ),
    inference(resolution,[status(thm)],[f619,f407]) ).

fof(f852,plain,
    ! [X0] :
      ( ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | is_a_theorem(strict_equiv(and(X0,X0),X0))
      | ~ is_a_theorem(strict_implies(and(X0,X0),X0)) ),
    inference(resolution,[status(thm)],[f619,f440]) ).

fof(f858,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | X0 = X1
      | ~ is_a_theorem(strict_implies(X1,X0))
      | ~ is_a_theorem(strict_implies(X0,X1)) ),
    inference(resolution,[status(thm)],[f619,f293]) ).

fof(f864,plain,
    ! [X0,X1] :
      ( ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | is_a_theorem(strict_equiv(and(X0,X1),and(X1,X0))) ),
    inference(forward_subsumption_resolution,[status(thm)],[f850,f407]) ).

fof(f865,plain,
    ! [X0] :
      ( ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_equiv(and(X0,X0),X0)) ),
    inference(forward_subsumption_resolution,[status(thm)],[f852,f418]) ).

fof(f866,plain,
    ! [X0] :
      ( ~ sQ15_spl
      | ~ sQ92_spl
      | ~ sQ68_spl
      | ~ sQ56_spl
      | ~ sQ65_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_implies(X0,X0)) ),
    inference(resolution,[status(thm)],[f865,f663]) ).

fof(f870,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | and(X0,X0) = X0 ),
    inference(resolution,[status(thm)],[f865,f293]) ).

fof(f883,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ86_spl
      | ~ sQ5_spl
      | implies(possibly(X0),necessarily(not(X0))) = not(possibly(X0)) ),
    inference(paramodulation,[status(thm)],[f870,f636]) ).

fof(f885,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | or(not(X0),X1) = implies(implies(not(X0),X0),X1) ),
    inference(paramodulation,[status(thm)],[f870,f711]) ).

fof(f887,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | implies(not(X0),X0) = not(not(X0)) ),
    inference(paramodulation,[status(thm)],[f870,f219]) ).

fof(f897,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | or(not(X0),X1) = implies(or(X0,X0),X1) ),
    inference(forward_demodulation,[status(thm)],[f710,f885]) ).

fof(f898,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | or(X0,X0) = not(not(X0)) ),
    inference(forward_demodulation,[status(thm)],[f710,f887]) ).

fof(f950,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | strict_implies(not(X0),X0) = necessarily(not(not(X0))) ),
    inference(paramodulation,[status(thm)],[f898,f715]) ).

fof(f961,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | implies(X0,not(X1)) = not(and(X0,or(X1,X1))) ),
    inference(paramodulation,[status(thm)],[f898,f219]) ).

fof(f1142,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | and(X0,X1) = and(X1,X0) ),
    inference(resolution,[status(thm)],[f864,f293]) ).

fof(f1185,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ5_spl
      | implies(X0,X1) = not(and(not(X1),X0)) ),
    inference(paramodulation,[status(thm)],[f1142,f219]) ).

fof(f1270,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | implies(not(X0),X1) = implies(not(X1),X0) ),
    inference(paramodulation,[status(thm)],[f219,f1185]) ).

fof(f1297,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | or(X0,X1) = implies(not(X1),X0) ),
    inference(forward_demodulation,[status(thm)],[f710,f1270]) ).

fof(f1298,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | or(X0,X1) = or(X1,X0) ),
    inference(forward_demodulation,[status(thm)],[f710,f1297]) ).

fof(f1320,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | strict_implies(not(X0),X1) = necessarily(or(X1,X0)) ),
    inference(paramodulation,[status(thm)],[f1298,f715]) ).

fof(f1325,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | strict_implies(not(X0),X1) = strict_implies(not(X1),X0) ),
    inference(forward_demodulation,[status(thm)],[f715,f1320]) ).

fof(f1345,plain,
    ! [X0] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ71_spl
      | is_a_theorem(strict_implies(not(possibly(not(X0))),X0)) ),
    inference(paramodulation,[status(thm)],[f1325,f462]) ).

fof(f1352,plain,
    ! [X0] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_implies(not(not(X0)),X0)) ),
    inference(paramodulation,[status(thm)],[f1325,f866]) ).

fof(f1391,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | is_a_theorem(strict_implies(or(X0,X0),X0)) ),
    inference(paramodulation,[status(thm)],[f898,f1352]) ).

fof(f1498,plain,
    ! [X0,X1,X2] :
      ( ~ sQ20_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ is_a_theorem(strict_implies(X2,X1))
      | ~ is_a_theorem(strict_implies(X0,X2))
      | is_a_theorem(strict_implies(X0,X1)) ),
    inference(resolution,[status(thm)],[f727,f274]) ).

fof(f1581,plain,
    ! [X0] :
      ( ~ sQ15_spl
      | ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ71_spl
      | is_a_theorem(X0)
      | ~ is_a_theorem(not(possibly(not(X0)))) ),
    inference(resolution,[status(thm)],[f1345,f255]) ).

fof(f1735,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | X0 = or(X0,X0)
      | ~ is_a_theorem(strict_implies(X0,or(X0,X0))) ),
    inference(resolution,[status(thm)],[f858,f1391]) ).

fof(f5847,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | implies(or(X0,X0),not(X0)) = not(or(X0,X0)) ),
    inference(paramodulation,[status(thm)],[f870,f961]) ).

fof(f5918,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | or(not(X0),not(X0)) = not(or(X0,X0)) ),
    inference(forward_demodulation,[status(thm)],[f897,f5847]) ).

fof(f9939,plain,
    ! [X0,X1,X2] :
      ( ~ sQ59_spl
      | ~ sQ20_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ is_a_theorem(strict_implies(X0,and(X1,X2)))
      | is_a_theorem(strict_implies(X0,X1)) ),
    inference(resolution,[status(thm)],[f1498,f418]) ).

fof(f9941,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ is_a_theorem(strict_implies(X0,or(X1,X1)))
      | is_a_theorem(strict_implies(X0,X1)) ),
    inference(resolution,[status(thm)],[f1498,f1391]) ).

fof(f14818,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_implies(not(not(and(X0,X1))),X0)) ),
    inference(resolution,[status(thm)],[f9939,f1352]) ).

fof(f15239,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_implies(not(implies(X0,X1)),X0)) ),
    inference(paramodulation,[status(thm)],[f219,f14818]) ).

fof(f17608,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_implies(not(implies(or(X0,X0),X1)),X0)) ),
    inference(resolution,[status(thm)],[f9941,f15239]) ).

fof(f17645,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_implies(not(or(not(X0),X1)),X0)) ),
    inference(forward_demodulation,[status(thm)],[f897,f17608]) ).

fof(f17875,plain,
    ! [X0,X1] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | is_a_theorem(strict_implies(not(X0),or(not(X0),X1))) ),
    inference(paramodulation,[status(thm)],[f1325,f17645]) ).

fof(f18645,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | not(X0) = or(not(X0),not(X0)) ),
    inference(resolution,[status(thm)],[f17875,f1735]) ).

fof(f18691,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | not(X0) = not(or(X0,X0)) ),
    inference(forward_demodulation,[status(thm)],[f5918,f18645]) ).

fof(f18855,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | implies(X0,or(X1,X1)) = not(and(not(X1),X0)) ),
    inference(paramodulation,[status(thm)],[f18691,f1185]) ).

fof(f18928,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | implies(X0,or(X1,X1)) = implies(X0,X1) ),
    inference(forward_demodulation,[status(thm)],[f1185,f18855]) ).

fof(f20744,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | strict_implies(X0,or(X1,X1)) = necessarily(implies(X0,X1)) ),
    inference(paramodulation,[status(thm)],[f18928,f531]) ).

fof(f20821,plain,
    ! [X0,X1] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | strict_implies(X0,or(X1,X1)) = strict_implies(X0,X1) ),
    inference(forward_demodulation,[status(thm)],[f531,f20744]) ).

fof(f20941,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | X0 = or(X0,X0)
      | ~ is_a_theorem(strict_implies(X0,X0)) ),
    inference(backward_demodulation,[status(thm)],[f20821,f1735]) ).

fof(f21078,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | X0 = or(X0,X0) ),
    inference(forward_subsumption_resolution,[status(thm)],[f20941,f866]) ).

fof(f21221,plain,
    ! [X0] :
      ( ~ sQ86_spl
      | ~ sQ1_spl
      | ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | necessarily(not(X0)) = implies(possibly(X0),necessarily(not(X0))) ),
    inference(paramodulation,[status(thm)],[f712,f21078]) ).

fof(f21263,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | strict_implies(not(X0),X0) = necessarily(X0) ),
    inference(paramodulation,[status(thm)],[f21078,f715]) ).

fof(f21264,plain,
    ! [X0] :
      ( ~ sQ86_spl
      | ~ sQ1_spl
      | ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ56_spl
      | ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | necessarily(not(X0)) = not(possibly(X0)) ),
    inference(forward_demodulation,[status(thm)],[f883,f21221]) ).

fof(f21273,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ56_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | necessarily(X0) = necessarily(not(not(X0))) ),
    inference(backward_demodulation,[status(thm)],[f21263,f950]) ).

fof(f22366,plain,
    ! [X0] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ71_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ86_spl
      | is_a_theorem(strict_implies(necessarily(X0),X0)) ),
    inference(backward_demodulation,[status(thm)],[f22368,f1345]) ).

fof(f22367,plain,
    ! [X0] :
      ( ~ sQ15_spl
      | ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ71_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | ~ sQ68_spl
      | ~ sQ86_spl
      | is_a_theorem(X0)
      | ~ is_a_theorem(necessarily(X0)) ),
    inference(backward_demodulation,[status(thm)],[f22368,f1581]) ).

fof(f22368,plain,
    ! [X0] :
      ( ~ sQ25_spl
      | ~ sQ65_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ59_spl
      | ~ sQ5_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ56_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ86_spl
      | necessarily(X0) = not(possibly(not(X0))) ),
    inference(forward_demodulation,[status(thm)],[f21264,f21273]) ).

fof(f22529,plain,
    ! [X0,X1] :
      ( ~ sQ90_spl
      | ~ sQ15_spl
      | ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ71_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | ~ sQ68_spl
      | ~ sQ86_spl
      | is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(strict_implies(X0,X1)) ),
    inference(paramodulation,[status(thm)],[f531,f22367]) ).

fof(f28789,plain,
    ! [X0] :
      ( ~ sQ5_spl
      | ~ sQ25_spl
      | ~ sQ56_spl
      | ~ sQ92_spl
      | ~ sQ20_spl
      | ~ sQ1_spl
      | ~ sQ90_spl
      | ~ sQ71_spl
      | ~ sQ65_spl
      | ~ sQ59_spl
      | ~ sQ15_spl
      | ~ sQ68_spl
      | ~ sQ86_spl
      | is_a_theorem(implies(necessarily(X0),X0)) ),
    inference(resolution,[status(thm)],[f22529,f22366]) ).

fof(f28858,plain,
    ( ~ sQ5_spl
    | ~ sQ25_spl
    | ~ sQ56_spl
    | ~ sQ92_spl
    | ~ sQ20_spl
    | ~ sQ1_spl
    | ~ sQ90_spl
    | ~ sQ71_spl
    | ~ sQ65_spl
    | ~ sQ59_spl
    | ~ sQ15_spl
    | ~ sQ68_spl
    | ~ sQ86_spl
    | sQ32_spl ),
    inference(split_clause,[status(thm)],[f28789,f318,f516,f450,f254,f417,f439,f461,f530,f204,f273,f537,f406,f292,f218]) ).

fof(f28874,plain,
    ( ~ sQ31_spl
    | $false ),
    inference(forward_subsumption_resolution,[status(thm)],[f316,f200]) ).

fof(f28875,plain,
    ~ sQ31_spl,
    inference(contradiction_clause,[status(thm)],[f28874]) ).

fof(f28876,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f207,f221,f257,f276,f295,f325,f409,f420,f442,f453,f464,f519,f533,f540,f542,f544,f546,f548,f550,f552,f556,f558,f567,f569,f579,f584,f604,f614,f28858,f28875]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : LCL566+1 : TPTP v9.3.1. Bugfixed v9.2.0.
% 0.00/0.04  % Command  : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.08/0.35  % Computer : n018.cluster.edu
% 0.08/0.35  % Model    : x86_64 x86_64
% 0.08/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35  % Memory   : 8046.5625MB
% 0.08/0.35  % OS       : Linux 6.8.0-71-generic
% 0.08/0.35  % CPULimit : 300
% 0.08/0.35  % WCLimit  : 300
% 0.08/0.35  % DateTime : Mon Sep 21 00:40:28 UTC 2026
% 0.08/0.35  % CPUTime  : 
% 0.08/0.36  % Drodi V4.1.1
% 107.34/14.26  % Refutation found
% 107.34/14.26  % SZS status Theorem for theBenchmark: Theorem is valid
% 107.34/14.26  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 3.99/14.57  % Elapsed time: 14.204341 seconds
% 3.99/14.57  % CPU time: 111.201744 seconds
% 3.99/14.57  % Total memory used: 1.024 GB
% 3.99/14.57  % Net memory used: 970.453 MB
%------------------------------------------------------------------------------