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LEO-II---2.3.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : DAT334^21 : TPTP v9.3.1. Released v8.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n009.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 : Wed Oct  7 10:16:48 AM UTC 2026

% Result   : Theorem 0.10s 0.20s
% Output   : CNFRefutation 0.10s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :   12
% Syntax   : Number of formulae    :   63 (  45 unt;   0 typ;  10 def)
%            Number of atoms       :  331 (  76 equ;   0 cnn)
%            Maximal formula atoms :   10 (   5 avg)
%            Number of connectives :  714 ( 140   ~;  89   |;  19   &; 459   @)
%                                         (   1 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   2 avg)
%            Number of types       :    3 (   1 usr)
%            Number of type conns  :   16 (  16   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   25 (  22 usr;  10 con; 0-3 aty)
%            Number of variables   :   99 (  26   ^;  66   !;   7   ?;  99   :)

% Comments : 
%------------------------------------------------------------------------------
thf(tp_mworld,type,
    mworld: $tType ).

thf(tp_cs,type,
    cs: $i ).

thf(tp_eiw_di,type,
    eiw_di: $i > mworld > $o ).

thf(tp_john,type,
    john: $i ).

thf(tp_mactual,type,
    mactual: mworld ).

thf(tp_mand,type,
    mand: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).

thf(tp_mary,type,
    mary: $i ).

thf(tp_math,type,
    math: $i ).

thf(tp_mbox,type,
    mbox: ( mworld > $o ) > mworld > $o ).

thf(tp_mdia,type,
    mdia: ( mworld > $o ) > mworld > $o ).

thf(tp_mequiv,type,
    mequiv: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).

thf(tp_mexists_di,type,
    mexists_di: ( $i > mworld > $o ) > mworld > $o ).

thf(tp_mforall_di,type,
    mforall_di: ( $i > mworld > $o ) > mworld > $o ).

thf(tp_mimplies,type,
    mimplies: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).

thf(tp_mlocal,type,
    mlocal: ( mworld > $o ) > $o ).

thf(tp_mnot,type,
    mnot: ( mworld > $o ) > mworld > $o ).

thf(tp_mor,type,
    mor: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).

thf(tp_mrel,type,
    mrel: mworld > mworld > $o ).

thf(tp_psych,type,
    psych: $i ).

thf(tp_sK1_SY6,type,
    sK1_SY6: mworld ).

thf(tp_sK2_SY27,type,
    sK2_SY27: mworld > $i ).

thf(tp_sue,type,
    sue: $i ).

thf(tp_teach,type,
    teach: $i > $i > mworld > $o ).

thf(mand,definition,
    ( mand
    = ( ^ [A: mworld > $o,B: mworld > $o,W: mworld] :
          ( ( A @ W )
          & ( B @ W ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mand_def) ).

thf(mbox,definition,
    ( mbox
    = ( ^ [Phi: mworld > $o,W: mworld] :
        ! [V: mworld] :
          ( ( mrel @ W @ V )
         => ( Phi @ V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mbox_def) ).

thf(mdia,definition,
    ( mdia
    = ( ^ [Phi: mworld > $o,W: mworld] :
        ? [V: mworld] :
          ( ( mrel @ W @ V )
          & ( Phi @ V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mdia_def) ).

thf(mequiv,definition,
    ( mequiv
    = ( ^ [A: mworld > $o,B: mworld > $o,W: mworld] :
          ( ( A @ W )
        <=> ( B @ W ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mequiv_def) ).

thf(mexists_di,definition,
    ( mexists_di
    = ( ^ [A: $i > mworld > $o,W: mworld] :
        ? [X: $i] :
          ( ( eiw_di @ X @ W )
          & ( A @ X @ W ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mexists_di_def) ).

thf(mforall_di,definition,
    ( mforall_di
    = ( ^ [A: $i > mworld > $o,W: mworld] :
        ! [X: $i] :
          ( ( eiw_di @ X @ W )
         => ( A @ X @ W ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mforall_di_def) ).

thf(mimplies,definition,
    ( mimplies
    = ( ^ [A: mworld > $o,B: mworld > $o,W: mworld] :
          ( ( A @ W )
         => ( B @ W ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mimplies_def) ).

thf(mlocal,definition,
    ( mlocal
    = ( ^ [Phi: mworld > $o] : ( Phi @ mactual ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mlocal_def) ).

thf(mnot,definition,
    ( mnot
    = ( ^ [A: mworld > $o,W: mworld] :
          ~ ( A @ W ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mnot_def) ).

thf(mor,definition,
    ( mor
    = ( ^ [A: mworld > $o,B: mworld > $o,W: mworld] :
          ( ( A @ W )
          | ( B @ W ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mor_def) ).

thf(1,axiom,
    ( mlocal
    @ ( mbox
      @ ( mand @ ( teach @ john @ math )
        @ ( mand
          @ ( mexists_di
            @ ^ [X: $i] : ( teach @ X @ cs ) )
          @ ( mand @ ( teach @ mary @ psych ) @ ( teach @ sue @ psych ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',db) ).

thf(5,conjecture,
    ( mlocal
    @ ( mbox
      @ ( mexists_di
        @ ^ [X: $i] : ( teach @ X @ cs ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',query) ).

thf(6,negated_conjecture,
    ( ( mlocal
      @ ( mbox
        @ ( mexists_di
          @ ^ [X: $i] : ( teach @ X @ cs ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[5]) ).

thf(7,plain,
    ( ( ! [SY6: mworld] :
          ( ( mrel @ mactual @ SY6 )
         => ? [SY5: $i] :
              ( ( eiw_di @ SY5 @ SY6 )
              & ( teach @ SY5 @ cs @ SY6 ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[6,mand,mbox,mdia,mequiv,mexists_di,mforall_di,mimplies,mlocal,mnot,mor]) ).

thf(8,plain,
    ( ( ! [SY28: mworld] :
          ( ( mrel @ mactual @ SY28 )
         => ( ( teach @ john @ math @ SY28 )
            & ? [SY27: $i] :
                ( ( eiw_di @ SY27 @ SY28 )
                & ( teach @ SY27 @ cs @ SY28 ) )
            & ( teach @ mary @ psych @ SY28 )
            & ( teach @ sue @ psych @ SY28 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1,mand,mbox,mdia,mequiv,mexists_di,mforall_di,mimplies,mlocal,mnot,mor]) ).

thf(9,plain,
    ( ( ( mrel @ mactual @ sK1_SY6 )
     => ? [SY32: $i] :
          ( ( eiw_di @ SY32 @ sK1_SY6 )
          & ( teach @ SY32 @ cs @ sK1_SY6 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[7]) ).

thf(10,plain,
    ( ( mrel @ mactual @ sK1_SY6 )
    = $true ),
    inference(standard_cnf,[status(thm)],[9]) ).

thf(11,plain,
    ( ( ? [SY32: $i] :
          ( ( eiw_di @ SY32 @ sK1_SY6 )
          & ( teach @ SY32 @ cs @ sK1_SY6 ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[9]) ).

thf(12,plain,
    ( ( ~ ? [SY32: $i] :
            ( ( eiw_di @ SY32 @ sK1_SY6 )
            & ( teach @ SY32 @ cs @ sK1_SY6 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[11]) ).

thf(13,plain,
    ( ( ! [SY32: $i] :
          ( ~ ( eiw_di @ SY32 @ sK1_SY6 )
          | ~ ( teach @ SY32 @ cs @ sK1_SY6 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[12]) ).

thf(14,plain,
    ( ( ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( teach @ mary @ psych @ SY28 ) )
      & ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( teach @ sue @ psych @ SY28 ) )
      & ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( ( eiw_di @ ( sK2_SY27 @ SY28 ) @ SY28 )
            & ( teach @ ( sK2_SY27 @ SY28 ) @ cs @ SY28 ) ) )
      & ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( teach @ john @ math @ SY28 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[8]) ).

thf(15,plain,
    ( ( ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( teach @ mary @ psych @ SY28 ) )
      & ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( teach @ sue @ psych @ SY28 ) )
      & ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( ( eiw_di @ ( sK2_SY27 @ SY28 ) @ SY28 )
            & ( teach @ ( sK2_SY27 @ SY28 ) @ cs @ SY28 ) ) )
      & ! [SY28: mworld] :
          ( ~ ( mrel @ mactual @ SY28 )
          | ( teach @ john @ math @ SY28 ) ) )
    = $true ),
    inference(copy,[status(thm)],[14]) ).

thf(16,plain,
    ( ( mrel @ mactual @ sK1_SY6 )
    = $true ),
    inference(copy,[status(thm)],[10]) ).

thf(17,plain,
    ( ( ! [SY32: $i] :
          ( ~ ( eiw_di @ SY32 @ sK1_SY6 )
          | ~ ( teach @ SY32 @ cs @ sK1_SY6 ) ) )
    = $true ),
    inference(copy,[status(thm)],[13]) ).

thf(18,plain,
    ( ( ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: mworld] :
                            ( ~ ( mrel @ mactual @ SX0 )
                            | ( teach @ mary @ psych @ SX0 ) )
                      | ~ ! [SX0: mworld] :
                            ( ~ ( mrel @ mactual @ SX0 )
                            | ( teach @ sue @ psych @ SX0 ) ) )
                | ~ ! [SX0: mworld] :
                      ( ~ ( mrel @ mactual @ SX0 )
                      | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SX0 ) @ SX0 )
                          | ~ ( teach @ ( sK2_SY27 @ SX0 ) @ cs @ SX0 ) ) ) )
          | ~ ! [SX0: mworld] :
                ( ~ ( mrel @ mactual @ SX0 )
                | ( teach @ john @ math @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15,mand,mbox,mdia,mequiv,mexists_di,mforall_di,mimplies,mlocal,mnot,mor]) ).

thf(19,plain,
    ! [SV1: $i] :
      ( ( ~ ( eiw_di @ SV1 @ sK1_SY6 )
        | ~ ( teach @ SV1 @ cs @ sK1_SY6 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[17]) ).

thf(20,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ! [SX0: mworld] :
                        ( ~ ( mrel @ mactual @ SX0 )
                        | ( teach @ mary @ psych @ SX0 ) )
                  | ~ ! [SX0: mworld] :
                        ( ~ ( mrel @ mactual @ SX0 )
                        | ( teach @ sue @ psych @ SX0 ) ) )
            | ~ ! [SX0: mworld] :
                  ( ~ ( mrel @ mactual @ SX0 )
                  | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SX0 ) @ SX0 )
                      | ~ ( teach @ ( sK2_SY27 @ SX0 ) @ cs @ SX0 ) ) ) )
      | ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ( teach @ john @ math @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[18]) ).

thf(21,plain,
    ! [SV1: $i] :
      ( ( ( ~ ( eiw_di @ SV1 @ sK1_SY6 ) )
        = $true )
      | ( ( ~ ( teach @ SV1 @ cs @ sK1_SY6 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[19]) ).

thf(22,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ! [SX0: mworld] :
                        ( ~ ( mrel @ mactual @ SX0 )
                        | ( teach @ mary @ psych @ SX0 ) )
                  | ~ ! [SX0: mworld] :
                        ( ~ ( mrel @ mactual @ SX0 )
                        | ( teach @ sue @ psych @ SX0 ) ) )
            | ~ ! [SX0: mworld] :
                  ( ~ ( mrel @ mactual @ SX0 )
                  | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SX0 ) @ SX0 )
                      | ~ ( teach @ ( sK2_SY27 @ SX0 ) @ cs @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[20]) ).

thf(23,plain,
    ( ( ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ( teach @ john @ math @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[20]) ).

thf(24,plain,
    ! [SV1: $i] :
      ( ( ( eiw_di @ SV1 @ sK1_SY6 )
        = $false )
      | ( ( ~ ( teach @ SV1 @ cs @ sK1_SY6 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[21]) ).

thf(25,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: mworld] :
                      ( ~ ( mrel @ mactual @ SX0 )
                      | ( teach @ mary @ psych @ SX0 ) )
                | ~ ! [SX0: mworld] :
                      ( ~ ( mrel @ mactual @ SX0 )
                      | ( teach @ sue @ psych @ SX0 ) ) )
          | ~ ! [SX0: mworld] :
                ( ~ ( mrel @ mactual @ SX0 )
                | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SX0 ) @ SX0 )
                    | ~ ( teach @ ( sK2_SY27 @ SX0 ) @ cs @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[22]) ).

thf(26,plain,
    ( ( ! [SX0: mworld] :
          ( ~ ( mrel @ mactual @ SX0 )
          | ( teach @ john @ math @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[23]) ).

thf(27,plain,
    ! [SV1: $i] :
      ( ( ( teach @ SV1 @ cs @ sK1_SY6 )
        = $false )
      | ( ( eiw_di @ SV1 @ sK1_SY6 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[24]) ).

thf(28,plain,
    ( ( ~ ~ ( ~ ! [SX0: mworld] :
                  ( ~ ( mrel @ mactual @ SX0 )
                  | ( teach @ mary @ psych @ SX0 ) )
            | ~ ! [SX0: mworld] :
                  ( ~ ( mrel @ mactual @ SX0 )
                  | ( teach @ sue @ psych @ SX0 ) ) )
      | ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SX0 ) @ SX0 )
                | ~ ( teach @ ( sK2_SY27 @ SX0 ) @ cs @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[25]) ).

thf(29,plain,
    ! [SV2: mworld] :
      ( ( ~ ( mrel @ mactual @ SV2 )
        | ( teach @ john @ math @ SV2 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[26]) ).

thf(30,plain,
    ( ( ~ ~ ( ~ ! [SX0: mworld] :
                  ( ~ ( mrel @ mactual @ SX0 )
                  | ( teach @ mary @ psych @ SX0 ) )
            | ~ ! [SX0: mworld] :
                  ( ~ ( mrel @ mactual @ SX0 )
                  | ( teach @ sue @ psych @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[28]) ).

thf(31,plain,
    ( ( ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SX0 ) @ SX0 )
                | ~ ( teach @ ( sK2_SY27 @ SX0 ) @ cs @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[28]) ).

thf(32,plain,
    ! [SV2: mworld] :
      ( ( ( ~ ( mrel @ mactual @ SV2 ) )
        = $true )
      | ( ( teach @ john @ math @ SV2 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[29]) ).

thf(33,plain,
    ( ( ~ ( ~ ! [SX0: mworld] :
                ( ~ ( mrel @ mactual @ SX0 )
                | ( teach @ mary @ psych @ SX0 ) )
          | ~ ! [SX0: mworld] :
                ( ~ ( mrel @ mactual @ SX0 )
                | ( teach @ sue @ psych @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[30]) ).

thf(34,plain,
    ( ( ! [SX0: mworld] :
          ( ~ ( mrel @ mactual @ SX0 )
          | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SX0 ) @ SX0 )
              | ~ ( teach @ ( sK2_SY27 @ SX0 ) @ cs @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[31]) ).

thf(35,plain,
    ! [SV2: mworld] :
      ( ( ( mrel @ mactual @ SV2 )
        = $false )
      | ( ( teach @ john @ math @ SV2 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[32]) ).

thf(36,plain,
    ( ( ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ( teach @ mary @ psych @ SX0 ) )
      | ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ( teach @ sue @ psych @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[33]) ).

thf(37,plain,
    ! [SV3: mworld] :
      ( ( ~ ( mrel @ mactual @ SV3 )
        | ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SV3 ) @ SV3 )
            | ~ ( teach @ ( sK2_SY27 @ SV3 ) @ cs @ SV3 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[34]) ).

thf(38,plain,
    ( ( ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ( teach @ mary @ psych @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[36]) ).

thf(39,plain,
    ( ( ~ ! [SX0: mworld] :
            ( ~ ( mrel @ mactual @ SX0 )
            | ( teach @ sue @ psych @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[36]) ).

thf(40,plain,
    ! [SV3: mworld] :
      ( ( ( ~ ( mrel @ mactual @ SV3 ) )
        = $true )
      | ( ( ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SV3 ) @ SV3 )
              | ~ ( teach @ ( sK2_SY27 @ SV3 ) @ cs @ SV3 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[37]) ).

thf(41,plain,
    ( ( ! [SX0: mworld] :
          ( ~ ( mrel @ mactual @ SX0 )
          | ( teach @ mary @ psych @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[38]) ).

thf(42,plain,
    ( ( ! [SX0: mworld] :
          ( ~ ( mrel @ mactual @ SX0 )
          | ( teach @ sue @ psych @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[39]) ).

thf(43,plain,
    ! [SV3: mworld] :
      ( ( ( mrel @ mactual @ SV3 )
        = $false )
      | ( ( ~ ( ~ ( eiw_di @ ( sK2_SY27 @ SV3 ) @ SV3 )
              | ~ ( teach @ ( sK2_SY27 @ SV3 ) @ cs @ SV3 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[40]) ).

thf(44,plain,
    ! [SV4: mworld] :
      ( ( ~ ( mrel @ mactual @ SV4 )
        | ( teach @ mary @ psych @ SV4 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[41]) ).

thf(45,plain,
    ! [SV5: mworld] :
      ( ( ~ ( mrel @ mactual @ SV5 )
        | ( teach @ sue @ psych @ SV5 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[42]) ).

thf(46,plain,
    ! [SV3: mworld] :
      ( ( ( ~ ( eiw_di @ ( sK2_SY27 @ SV3 ) @ SV3 )
          | ~ ( teach @ ( sK2_SY27 @ SV3 ) @ cs @ SV3 ) )
        = $false )
      | ( ( mrel @ mactual @ SV3 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[43]) ).

thf(47,plain,
    ! [SV4: mworld] :
      ( ( ( ~ ( mrel @ mactual @ SV4 ) )
        = $true )
      | ( ( teach @ mary @ psych @ SV4 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[44]) ).

thf(48,plain,
    ! [SV5: mworld] :
      ( ( ( ~ ( mrel @ mactual @ SV5 ) )
        = $true )
      | ( ( teach @ sue @ psych @ SV5 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[45]) ).

thf(49,plain,
    ! [SV3: mworld] :
      ( ( ( ~ ( eiw_di @ ( sK2_SY27 @ SV3 ) @ SV3 ) )
        = $false )
      | ( ( mrel @ mactual @ SV3 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[46]) ).

thf(50,plain,
    ! [SV3: mworld] :
      ( ( ( ~ ( teach @ ( sK2_SY27 @ SV3 ) @ cs @ SV3 ) )
        = $false )
      | ( ( mrel @ mactual @ SV3 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[46]) ).

thf(51,plain,
    ! [SV4: mworld] :
      ( ( ( mrel @ mactual @ SV4 )
        = $false )
      | ( ( teach @ mary @ psych @ SV4 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[47]) ).

thf(52,plain,
    ! [SV5: mworld] :
      ( ( ( mrel @ mactual @ SV5 )
        = $false )
      | ( ( teach @ sue @ psych @ SV5 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[48]) ).

thf(53,plain,
    ! [SV3: mworld] :
      ( ( ( eiw_di @ ( sK2_SY27 @ SV3 ) @ SV3 )
        = $true )
      | ( ( mrel @ mactual @ SV3 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[49]) ).

thf(54,plain,
    ! [SV3: mworld] :
      ( ( ( teach @ ( sK2_SY27 @ SV3 ) @ cs @ SV3 )
        = $true )
      | ( ( mrel @ mactual @ SV3 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[50]) ).

thf(55,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[16,54,53,52,51,35,27]) ).

thf(56,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[55]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : DAT334^21 : TPTP v9.3.1. Released v8.1.0.
% 0.00/0.04  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.16  % Computer : n009.cluster.edu
% 0.10/0.16  % Model    : x86_64 x86_64
% 0.10/0.16  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.16  % Memory   : 8046.5625MB
% 0.10/0.16  % OS       : Linux 6.8.0-71-generic
% 0.10/0.16  % CPULimit : 300
% 0.10/0.16  % WCLimit  : 300
% 0.10/0.16  % DateTime : Tue Oct  6 19:03:02 UTC 2026
% 0.10/0.16  % CPUTime  : 
% 0.10/0.16  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.20  
% 0.10/0.20   No.of.Axioms: 4
% 0.10/0.20  
% 0.10/0.20   Length.of.Defs: 1653
% 0.10/0.20  
% 0.10/0.20   Contains.Choice.Funs: false
% 0.10/0.20  ..
% 0.10/0.20  
% 0.10/0.20  ********************************
% 0.10/0.20  *   All subproblems solved!    *
% 0.10/0.20  ********************************
% 0.10/0.20  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:2,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:15,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:55,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.10/0.20  
% 0.10/0.20  %**** Beginning of derivation protocol ****
% 0.10/0.20  % SZS output start CNFRefutation
% See solution above
% 0.10/0.20  
% 0.10/0.20  %**** End of derivation protocol ****
% 0.10/0.20  %**** no. of clauses in derivation: 53 ****
% 0.10/0.20  %**** clause counter: 55 ****
% 0.10/0.20  
% 0.10/0.20  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:2,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:15,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:55,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------