TSTP Solution File: SWV233+1 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SWV233+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s

% Computer : n012.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Wed Jul 20 20:11:16 EDT 2022

% Result   : Theorem 33.86s 34.05s
% Output   : CNFRefutation 33.86s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   30
%            Number of leaves      :   46
% Syntax   : Number of formulae    :  285 ( 175 unt;  27 typ;   0 def)
%            Number of atoms       : 1757 ( 489 equ;   0 cnn)
%            Maximal formula atoms :   11 (   6 avg)
%            Number of connectives : 4187 ( 776   ~; 647   |;  72   &;2674   @)
%                                         (   0 <=>;  18  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   19 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   26 (  26   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   30 (  27 usr;  11 con; 0-2 aty)
%            Number of variables   :  622 (   0   ^ 622   !;   0   ?; 622   :)

% Comments : 
%------------------------------------------------------------------------------
thf(tp_c,type,
    c: $i ).

thf(tp_concatenate,type,
    concatenate: $i > $i > $i ).

thf(tp_decrypt,type,
    decrypt: $i > $i > $i ).

thf(tp_encrypt,type,
    encrypt: $i > $i > $i ).

thf(tp_eol,type,
    eol: $i ).

thf(tp_extract,type,
    extract: $i > $i > $i ).

thf(tp_first,type,
    first: $i > $i ).

thf(tp_fourth,type,
    fourth: $i > $i ).

thf(tp_hash,type,
    hash: $i > $i ).

thf(tp_head,type,
    head: $i > $i ).

thf(tp_inverse,type,
    inverse: $i > $i ).

thf(tp_k_a,type,
    k_a: $i ).

thf(tp_k_c,type,
    k_c: $i ).

thf(tp_k_ca,type,
    k_ca: $i ).

thf(tp_k_s,type,
    k_s: $i ).

thf(tp_kgen,type,
    kgen: $i > $i ).

thf(tp_knows,type,
    knows: $i > $o ).

thf(tp_mac,type,
    mac: $i > $i > $i ).

thf(tp_n,type,
    n: $i ).

thf(tp_s,type,
    s: $i ).

thf(tp_second,type,
    second: $i > $i ).

thf(tp_secret,type,
    secret: $i ).

thf(tp_sign,type,
    sign: $i > $i > $i ).

thf(tp_symmetric_decrypt,type,
    symmetric_decrypt: $i > $i > $i ).

thf(tp_symmetric_encrypt,type,
    symmetric_encrypt: $i > $i > $i ).

thf(tp_tail,type,
    tail: $i > $i ).

thf(tp_third,type,
    third: $i > $i ).

thf(1,axiom,
    ! [Init_1: $i,Init_2: $i,Init_3: $i,Resp_1: $i,Resp_2: $i] :
      ( ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) )
      & ( ( ( knows @ Resp_1 )
          & ( knows @ Resp_2 )
          & ( ( first @ ( extract @ Resp_2 @ k_ca ) )
            = s )
          & ( ( second @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) )
            = n ) )
       => ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) ) ) ) )
      & ( ( ( knows @ Init_1 )
          & ( knows @ Init_2 )
          & ( knows @ Init_3 )
          & ( ( second @ ( extract @ Init_3 @ Init_2 ) )
            = Init_2 ) )
       => ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ Init_2 ) @ ( concatenate @ Init_1 @ eol ) ) @ ( inverse @ k_s ) ) @ Init_2 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',protocol) ).

thf(2,axiom,
    ( ( knows @ k_ca )
    & ( knows @ ( inverse @ k_a ) )
    & ( knows @ k_a ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',previous_knowledge) ).

thf(3,axiom,
    ! [X: $i,Y: $i] :
      ( ( ( knows @ X )
        & ( knows @ Y ) )
     => ( knows @ ( mac @ X @ Y ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',symmac_axiom) ).

thf(4,axiom,
    ! [X: $i] :
      ( ( fourth @ X )
      = ( head @ ( tail @ ( tail @ ( tail @ X ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fourth_axiom) ).

thf(5,axiom,
    ! [X: $i] :
      ( ( third @ X )
      = ( head @ ( tail @ ( tail @ X ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',third_axiom) ).

thf(6,axiom,
    ! [X: $i] :
      ( ( second @ X )
      = ( head @ ( tail @ X ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',second_axiom) ).

thf(7,axiom,
    ! [X: $i] :
      ( ( first @ X )
      = ( head @ X ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',first_axiom) ).

thf(8,axiom,
    ! [X: $i,Y: $i] :
      ( ( tail @ ( concatenate @ X @ Y ) )
      = Y ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',tail_axiom) ).

thf(9,axiom,
    ! [X: $i,Y: $i] :
      ( ( head @ ( concatenate @ X @ Y ) )
      = X ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',head_axiom) ).

thf(10,axiom,
    ! [E: $i,K: $i] :
      ( ( extract @ ( sign @ E @ ( inverse @ K ) ) @ K )
      = E ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',sign_axiom) ).

thf(11,axiom,
    ! [E: $i,K: $i] :
      ( ( symmetric_decrypt @ ( symmetric_encrypt @ E @ K ) @ K )
      = E ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',symmetric_decrypt_axiom) ).

thf(12,axiom,
    ! [E: $i,K: $i] :
      ( ( decrypt @ ( encrypt @ E @ K ) @ ( inverse @ K ) )
      = E ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',decrypt_axiom) ).

thf(13,axiom,
    ! [E: $i] :
      ( ( knows @ E )
     => ( ( knows @ ( head @ E ) )
        & ( knows @ ( tail @ E ) )
        & ( knows @ ( hash @ E ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',construct_message_3) ).

thf(14,axiom,
    ! [E1: $i,E2: $i] :
      ( ( knows @ ( concatenate @ E1 @ E2 ) )
     => ( ( knows @ E1 )
        & ( knows @ E2 ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',construct_message_2) ).

thf(15,axiom,
    ! [E1: $i,E2: $i] :
      ( ( ( knows @ E1 )
        & ( knows @ E2 ) )
     => ( ( knows @ ( concatenate @ E1 @ E2 ) )
        & ( knows @ ( encrypt @ E1 @ E2 ) )
        & ( knows @ ( symmetric_encrypt @ E1 @ E2 ) )
        & ( knows @ ( decrypt @ E1 @ E2 ) )
        & ( knows @ ( symmetric_decrypt @ E1 @ E2 ) )
        & ( knows @ ( extract @ E1 @ E2 ) )
        & ( knows @ ( sign @ E1 @ E2 ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',construct_message_1) ).

thf(16,axiom,
    ! [E: $i,K: $i] :
      ( ( ( knows @ ( sign @ E @ ( inverse @ K ) ) )
        & ( knows @ K ) )
     => ( knows @ E ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',sign_equation) ).

thf(17,axiom,
    ! [E1: $i,E2: $i] :
      ( ( ( knows @ ( symmetric_encrypt @ E1 @ E2 ) )
        & ( knows @ E2 ) )
     => ( knows @ E1 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',symmetric_encrypt_equation) ).

thf(18,axiom,
    ! [E1: $i,E2: $i] :
      ( ( ( knows @ ( encrypt @ E1 @ E2 ) )
        & ( knows @ ( inverse @ E2 ) ) )
     => ( knows @ E1 ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',encrypt_equation) ).

thf(19,conjecture,
    knows @ secret,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',attack) ).

thf(20,negated_conjecture,
    ( ( knows @ secret )
    = $false ),
    inference(negate_conjecture,[status(cth)],[19]) ).

thf(21,plain,
    ( ( knows @ secret )
    = $false ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(22,plain,
    ( ( ! [Init_1: $i,Init_2: $i,Init_3: $i,Resp_1: $i,Resp_2: $i] :
          ( ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) )
          & ( ( ( knows @ Resp_1 )
              & ( knows @ Resp_2 )
              & ( ( first @ ( extract @ Resp_2 @ k_ca ) )
                = s )
              & ( ( second @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) )
                = n ) )
           => ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) ) ) ) )
          & ( ( ( knows @ Init_1 )
              & ( knows @ Init_2 )
              & ( knows @ Init_3 )
              & ( ( second @ ( extract @ Init_3 @ Init_2 ) )
                = Init_2 ) )
           => ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ Init_2 ) @ ( concatenate @ Init_1 @ eol ) ) @ ( inverse @ k_s ) ) @ Init_2 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(23,plain,
    ( ( ( knows @ k_ca )
      & ( knows @ ( inverse @ k_a ) )
      & ( knows @ k_a ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(24,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( ( knows @ X )
            & ( knows @ Y ) )
         => ( knows @ ( mac @ X @ Y ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(25,plain,
    ( ( ! [X: $i] :
          ( ( fourth @ X )
          = ( head @ ( tail @ ( tail @ ( tail @ X ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(26,plain,
    ( ( ! [X: $i] :
          ( ( third @ X )
          = ( head @ ( tail @ ( tail @ X ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(27,plain,
    ( ( ! [X: $i] :
          ( ( second @ X )
          = ( head @ ( tail @ X ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(28,plain,
    ( ( ! [X: $i] :
          ( ( first @ X )
          = ( head @ X ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(29,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( tail @ ( concatenate @ X @ Y ) )
          = Y ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(30,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( head @ ( concatenate @ X @ Y ) )
          = X ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(31,plain,
    ( ( ! [E: $i,K: $i] :
          ( ( extract @ ( sign @ E @ ( inverse @ K ) ) @ K )
          = E ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(32,plain,
    ( ( ! [E: $i,K: $i] :
          ( ( symmetric_decrypt @ ( symmetric_encrypt @ E @ K ) @ K )
          = E ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(33,plain,
    ( ( ! [E: $i,K: $i] :
          ( ( decrypt @ ( encrypt @ E @ K ) @ ( inverse @ K ) )
          = E ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(34,plain,
    ( ( ! [E: $i] :
          ( ( knows @ E )
         => ( ( knows @ ( head @ E ) )
            & ( knows @ ( tail @ E ) )
            & ( knows @ ( hash @ E ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(35,plain,
    ( ( ! [E1: $i,E2: $i] :
          ( ( knows @ ( concatenate @ E1 @ E2 ) )
         => ( ( knows @ E1 )
            & ( knows @ E2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(36,plain,
    ( ( ! [E1: $i,E2: $i] :
          ( ( ( knows @ E1 )
            & ( knows @ E2 ) )
         => ( ( knows @ ( concatenate @ E1 @ E2 ) )
            & ( knows @ ( encrypt @ E1 @ E2 ) )
            & ( knows @ ( symmetric_encrypt @ E1 @ E2 ) )
            & ( knows @ ( decrypt @ E1 @ E2 ) )
            & ( knows @ ( symmetric_decrypt @ E1 @ E2 ) )
            & ( knows @ ( extract @ E1 @ E2 ) )
            & ( knows @ ( sign @ E1 @ E2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(37,plain,
    ( ( ! [E: $i,K: $i] :
          ( ( ( knows @ ( sign @ E @ ( inverse @ K ) ) )
            & ( knows @ K ) )
         => ( knows @ E ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(38,plain,
    ( ( ! [E1: $i,E2: $i] :
          ( ( ( knows @ ( symmetric_encrypt @ E1 @ E2 ) )
            & ( knows @ E2 ) )
         => ( knows @ E1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(39,plain,
    ( ( ! [E1: $i,E2: $i] :
          ( ( ( knows @ ( encrypt @ E1 @ E2 ) )
            & ( knows @ ( inverse @ E2 ) ) )
         => ( knows @ E1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(40,plain,
    ( ( ~ ( knows @ secret ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[21]) ).

thf(41,plain,
    ( ( ! [Init_1: $i,Init_2: $i,Init_3: $i] :
          ( ! [Resp_1: $i,Resp_2: $i] :
              ( ~ ( knows @ Resp_1 )
              | ~ ( knows @ Resp_2 )
              | ( ( first @ ( extract @ Resp_2 @ k_ca ) )
               != s )
              | ( ( second @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) )
               != n )
              | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) ) ) ) )
          & ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) )
          & ( ~ ( knows @ Init_1 )
            | ~ ( knows @ Init_2 )
            | ~ ( knows @ Init_3 )
            | ( ( second @ ( extract @ Init_3 @ Init_2 ) )
             != Init_2 )
            | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ Init_2 ) @ ( concatenate @ Init_1 @ eol ) ) @ ( inverse @ k_s ) ) @ Init_2 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[22]) ).

thf(42,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( knows @ X )
          | ~ ( knows @ Y )
          | ( knows @ ( mac @ X @ Y ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[24]) ).

thf(43,plain,
    ( ( ! [E: $i] :
          ( ~ ( knows @ E )
          | ( knows @ ( head @ E ) ) )
      & ! [E: $i] :
          ( ~ ( knows @ E )
          | ( knows @ ( tail @ E ) ) )
      & ! [E: $i] :
          ( ~ ( knows @ E )
          | ( knows @ ( hash @ E ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[34]) ).

thf(44,plain,
    ( ( ! [E1: $i] :
          ( ! [E2: $i] :
              ~ ( knows @ ( concatenate @ E1 @ E2 ) )
          | ( knows @ E1 ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ ( concatenate @ E1 @ E2 ) )
          | ( knows @ E2 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[35]) ).

thf(45,plain,
    ( ( ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( concatenate @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( encrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( symmetric_encrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( decrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( symmetric_decrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( extract @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( sign @ E1 @ E2 ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[36]) ).

thf(46,plain,
    ( ( ! [E: $i] :
          ( ! [K: $i] :
              ( ~ ( knows @ ( sign @ E @ ( inverse @ K ) ) )
              | ~ ( knows @ K ) )
          | ( knows @ E ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[37]) ).

thf(47,plain,
    ( ( ! [E1: $i] :
          ( ! [E2: $i] :
              ( ~ ( knows @ ( symmetric_encrypt @ E1 @ E2 ) )
              | ~ ( knows @ E2 ) )
          | ( knows @ E1 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[38]) ).

thf(48,plain,
    ( ( ! [E1: $i] :
          ( ! [E2: $i] :
              ( ~ ( knows @ ( encrypt @ E1 @ E2 ) )
              | ~ ( knows @ ( inverse @ E2 ) ) )
          | ( knows @ E1 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[39]) ).

thf(49,plain,
    ( ( ! [E1: $i] :
          ( ! [E2: $i] :
              ( ~ ( knows @ ( encrypt @ E1 @ E2 ) )
              | ~ ( knows @ ( inverse @ E2 ) ) )
          | ( knows @ E1 ) ) )
    = $true ),
    inference(copy,[status(thm)],[48]) ).

thf(50,plain,
    ( ( ! [E1: $i] :
          ( ! [E2: $i] :
              ( ~ ( knows @ ( symmetric_encrypt @ E1 @ E2 ) )
              | ~ ( knows @ E2 ) )
          | ( knows @ E1 ) ) )
    = $true ),
    inference(copy,[status(thm)],[47]) ).

thf(51,plain,
    ( ( ! [E: $i] :
          ( ! [K: $i] :
              ( ~ ( knows @ ( sign @ E @ ( inverse @ K ) ) )
              | ~ ( knows @ K ) )
          | ( knows @ E ) ) )
    = $true ),
    inference(copy,[status(thm)],[46]) ).

thf(52,plain,
    ( ( ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( concatenate @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( encrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( symmetric_encrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( decrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( symmetric_decrypt @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( extract @ E1 @ E2 ) ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ E1 )
          | ~ ( knows @ E2 )
          | ( knows @ ( sign @ E1 @ E2 ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[45]) ).

thf(53,plain,
    ( ( ! [E1: $i] :
          ( ! [E2: $i] :
              ~ ( knows @ ( concatenate @ E1 @ E2 ) )
          | ( knows @ E1 ) )
      & ! [E1: $i,E2: $i] :
          ( ~ ( knows @ ( concatenate @ E1 @ E2 ) )
          | ( knows @ E2 ) ) )
    = $true ),
    inference(copy,[status(thm)],[44]) ).

thf(54,plain,
    ( ( ! [E: $i] :
          ( ~ ( knows @ E )
          | ( knows @ ( head @ E ) ) )
      & ! [E: $i] :
          ( ~ ( knows @ E )
          | ( knows @ ( tail @ E ) ) )
      & ! [E: $i] :
          ( ~ ( knows @ E )
          | ( knows @ ( hash @ E ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[43]) ).

thf(55,plain,
    ( ( ! [E: $i,K: $i] :
          ( ( decrypt @ ( encrypt @ E @ K ) @ ( inverse @ K ) )
          = E ) )
    = $true ),
    inference(copy,[status(thm)],[33]) ).

thf(56,plain,
    ( ( ! [E: $i,K: $i] :
          ( ( symmetric_decrypt @ ( symmetric_encrypt @ E @ K ) @ K )
          = E ) )
    = $true ),
    inference(copy,[status(thm)],[32]) ).

thf(57,plain,
    ( ( ! [E: $i,K: $i] :
          ( ( extract @ ( sign @ E @ ( inverse @ K ) ) @ K )
          = E ) )
    = $true ),
    inference(copy,[status(thm)],[31]) ).

thf(58,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( head @ ( concatenate @ X @ Y ) )
          = X ) )
    = $true ),
    inference(copy,[status(thm)],[30]) ).

thf(59,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ( tail @ ( concatenate @ X @ Y ) )
          = Y ) )
    = $true ),
    inference(copy,[status(thm)],[29]) ).

thf(60,plain,
    ( ( ! [X: $i] :
          ( ( first @ X )
          = ( head @ X ) ) )
    = $true ),
    inference(copy,[status(thm)],[28]) ).

thf(61,plain,
    ( ( ! [X: $i] :
          ( ( second @ X )
          = ( head @ ( tail @ X ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[27]) ).

thf(62,plain,
    ( ( ! [X: $i] :
          ( ( third @ X )
          = ( head @ ( tail @ ( tail @ X ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[26]) ).

thf(63,plain,
    ( ( ! [X: $i] :
          ( ( fourth @ X )
          = ( head @ ( tail @ ( tail @ ( tail @ X ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[25]) ).

thf(64,plain,
    ( ( ! [X: $i,Y: $i] :
          ( ~ ( knows @ X )
          | ~ ( knows @ Y )
          | ( knows @ ( mac @ X @ Y ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[42]) ).

thf(65,plain,
    ( ( ( knows @ k_ca )
      & ( knows @ ( inverse @ k_a ) )
      & ( knows @ k_a ) )
    = $true ),
    inference(copy,[status(thm)],[23]) ).

thf(66,plain,
    ( ( ! [Init_1: $i,Init_2: $i,Init_3: $i] :
          ( ! [Resp_1: $i,Resp_2: $i] :
              ( ~ ( knows @ Resp_1 )
              | ~ ( knows @ Resp_2 )
              | ( ( first @ ( extract @ Resp_2 @ k_ca ) )
               != s )
              | ( ( second @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) )
               != n )
              | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ Resp_1 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ Resp_2 @ k_ca ) ) ) ) ) ) )
          & ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) )
          & ( ~ ( knows @ Init_1 )
            | ~ ( knows @ Init_2 )
            | ~ ( knows @ Init_3 )
            | ( ( second @ ( extract @ Init_3 @ Init_2 ) )
             != Init_2 )
            | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ Init_2 ) @ ( concatenate @ Init_1 @ eol ) ) @ ( inverse @ k_s ) ) @ Init_2 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[41]) ).

thf(67,plain,
    ( ( ~ ( knows @ secret ) )
    = $true ),
    inference(copy,[status(thm)],[40]) ).

thf(68,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ~ ( ~ ! [SX3: $i,SX4: $i] :
                        ( ~ ( knows @ SX3 )
                        | ~ ( knows @ SX4 )
                        | ( ( first @ ( extract @ SX4 @ k_ca ) )
                         != s )
                        | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
                         != n )
                        | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
                  | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) )
            | ~ ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ~ ( knows @ SX2 )
                | ( ( second @ ( extract @ SX2 @ SX1 ) )
                 != SX1 )
                | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SX1 ) @ ( concatenate @ SX0 @ eol ) ) @ ( inverse @ k_s ) ) @ SX1 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(69,plain,
    ( ( ~ ( ~ ~ ( ~ ( knows @ k_ca )
                | ~ ( knows @ ( inverse @ k_a ) ) )
          | ~ ( knows @ k_a ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(70,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ! [SX1: $i] :
                    ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
                | ( knows @ SX0 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
                | ( knows @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(71,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ~ ( knows @ SX0 )
                      | ( knows @ ( head @ SX0 ) ) )
                | ~ ! [SX0: $i] :
                      ( ~ ( knows @ SX0 )
                      | ( knows @ ( tail @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( knows @ SX0 )
                | ( knows @ ( hash @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(72,plain,
    ( ( ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                                              ( ~ ( knows @ SX0 )
                                              | ~ ( knows @ SX1 )
                                              | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                                        | ~ ! [SX0: $i,SX1: $i] :
                                              ( ~ ( knows @ SX0 )
                                              | ~ ( knows @ SX1 )
                                              | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                                  | ~ ! [SX0: $i,SX1: $i] :
                                        ( ~ ( knows @ SX0 )
                                        | ~ ( knows @ SX1 )
                                        | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
                            | ~ ! [SX0: $i,SX1: $i] :
                                  ( ~ ( knows @ SX0 )
                                  | ~ ( knows @ SX1 )
                                  | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
                      | ~ ! [SX0: $i,SX1: $i] :
                            ( ~ ( knows @ SX0 )
                            | ~ ( knows @ SX1 )
                            | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( knows @ SX0 )
                      | ~ ( knows @ SX1 )
                      | ( knows @ ( extract @ SX0 @ SX1 ) ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ( knows @ ( sign @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(73,plain,
    ! [SV1: $i] :
      ( ( ! [SY32: $i] :
            ( ~ ( knows @ ( encrypt @ SV1 @ SY32 ) )
            | ~ ( knows @ ( inverse @ SY32 ) ) )
        | ( knows @ SV1 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[49]) ).

thf(74,plain,
    ! [SV2: $i] :
      ( ( ! [SY33: $i] :
            ( ~ ( knows @ ( symmetric_encrypt @ SV2 @ SY33 ) )
            | ~ ( knows @ SY33 ) )
        | ( knows @ SV2 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[50]) ).

thf(75,plain,
    ! [SV3: $i] :
      ( ( ! [SY34: $i] :
            ( ~ ( knows @ ( sign @ SV3 @ ( inverse @ SY34 ) ) )
            | ~ ( knows @ SY34 ) )
        | ( knows @ SV3 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[51]) ).

thf(76,plain,
    ! [SV4: $i] :
      ( ( ! [SY35: $i] :
            ( ( decrypt @ ( encrypt @ SV4 @ SY35 ) @ ( inverse @ SY35 ) )
            = SV4 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[55]) ).

thf(77,plain,
    ! [SV5: $i] :
      ( ( ! [SY36: $i] :
            ( ( symmetric_decrypt @ ( symmetric_encrypt @ SV5 @ SY36 ) @ SY36 )
            = SV5 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[56]) ).

thf(78,plain,
    ! [SV6: $i] :
      ( ( ! [SY37: $i] :
            ( ( extract @ ( sign @ SV6 @ ( inverse @ SY37 ) ) @ SY37 )
            = SV6 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[57]) ).

thf(79,plain,
    ! [SV7: $i] :
      ( ( ! [SY38: $i] :
            ( ( head @ ( concatenate @ SV7 @ SY38 ) )
            = SV7 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[58]) ).

thf(80,plain,
    ! [SV8: $i] :
      ( ( ! [SY39: $i] :
            ( ( tail @ ( concatenate @ SV8 @ SY39 ) )
            = SY39 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[59]) ).

thf(81,plain,
    ! [SV9: $i] :
      ( ( ( first @ SV9 )
        = ( head @ SV9 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[60]) ).

thf(82,plain,
    ! [SV10: $i] :
      ( ( ( second @ SV10 )
        = ( head @ ( tail @ SV10 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[61]) ).

thf(83,plain,
    ! [SV11: $i] :
      ( ( ( third @ SV11 )
        = ( head @ ( tail @ ( tail @ SV11 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[62]) ).

thf(84,plain,
    ! [SV12: $i] :
      ( ( ( fourth @ SV12 )
        = ( head @ ( tail @ ( tail @ ( tail @ SV12 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[63]) ).

thf(85,plain,
    ! [SV13: $i] :
      ( ( ! [SY40: $i] :
            ( ~ ( knows @ SV13 )
            | ~ ( knows @ SY40 )
            | ( knows @ ( mac @ SV13 @ SY40 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[64]) ).

thf(86,plain,
    ( ( knows @ secret )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[67]) ).

thf(87,plain,
    ! [SV14: $i] :
      ( ( ! [SY41: $i,SY42: $i] :
            ~ ( ~ ~ ( ~ ! [SX3: $i,SX4: $i] :
                          ( ~ ( knows @ SX3 )
                          | ~ ( knows @ SX4 )
                          | ( ( first @ ( extract @ SX4 @ k_ca ) )
                           != s )
                          | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
                           != n )
                          | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
                    | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) )
              | ~ ( ~ ( knows @ SV14 )
                  | ~ ( knows @ SY41 )
                  | ~ ( knows @ SY42 )
                  | ( ( second @ ( extract @ SY42 @ SY41 ) )
                   != SY41 )
                  | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SY41 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SY41 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[68]) ).

thf(88,plain,
    ( ( ~ ~ ( ~ ( knows @ k_ca )
            | ~ ( knows @ ( inverse @ k_a ) ) )
      | ~ ( knows @ k_a ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[69]) ).

thf(89,plain,
    ( ( ~ ! [SX0: $i] :
            ( ! [SX1: $i] :
                ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
            | ( knows @ SX0 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
            | ( knows @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[70]) ).

thf(90,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ~ ( knows @ SX0 )
                  | ( knows @ ( head @ SX0 ) ) )
            | ~ ! [SX0: $i] :
                  ( ~ ( knows @ SX0 )
                  | ( knows @ ( tail @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( knows @ SX0 )
            | ( knows @ ( hash @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[71]) ).

thf(91,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                                          ( ~ ( knows @ SX0 )
                                          | ~ ( knows @ SX1 )
                                          | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                                    | ~ ! [SX0: $i,SX1: $i] :
                                          ( ~ ( knows @ SX0 )
                                          | ~ ( knows @ SX1 )
                                          | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                              | ~ ! [SX0: $i,SX1: $i] :
                                    ( ~ ( knows @ SX0 )
                                    | ~ ( knows @ SX1 )
                                    | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
                        | ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( extract @ SX0 @ SX1 ) ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( sign @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[72]) ).

thf(92,plain,
    ! [SV1: $i] :
      ( ( ( ! [SY32: $i] :
              ( ~ ( knows @ ( encrypt @ SV1 @ SY32 ) )
              | ~ ( knows @ ( inverse @ SY32 ) ) ) )
        = $true )
      | ( ( knows @ SV1 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[73]) ).

thf(93,plain,
    ! [SV2: $i] :
      ( ( ( ! [SY33: $i] :
              ( ~ ( knows @ ( symmetric_encrypt @ SV2 @ SY33 ) )
              | ~ ( knows @ SY33 ) ) )
        = $true )
      | ( ( knows @ SV2 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[74]) ).

thf(94,plain,
    ! [SV3: $i] :
      ( ( ( ! [SY34: $i] :
              ( ~ ( knows @ ( sign @ SV3 @ ( inverse @ SY34 ) ) )
              | ~ ( knows @ SY34 ) ) )
        = $true )
      | ( ( knows @ SV3 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[75]) ).

thf(95,plain,
    ! [SV15: $i,SV4: $i] :
      ( ( ( decrypt @ ( encrypt @ SV4 @ SV15 ) @ ( inverse @ SV15 ) )
        = SV4 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[76]) ).

thf(96,plain,
    ! [SV16: $i,SV5: $i] :
      ( ( ( symmetric_decrypt @ ( symmetric_encrypt @ SV5 @ SV16 ) @ SV16 )
        = SV5 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[77]) ).

thf(97,plain,
    ! [SV17: $i,SV6: $i] :
      ( ( ( extract @ ( sign @ SV6 @ ( inverse @ SV17 ) ) @ SV17 )
        = SV6 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[78]) ).

thf(98,plain,
    ! [SV18: $i,SV7: $i] :
      ( ( ( head @ ( concatenate @ SV7 @ SV18 ) )
        = SV7 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[79]) ).

thf(99,plain,
    ! [SV19: $i,SV8: $i] :
      ( ( ( tail @ ( concatenate @ SV8 @ SV19 ) )
        = SV19 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[80]) ).

thf(100,plain,
    ! [SV20: $i,SV13: $i] :
      ( ( ~ ( knows @ SV13 )
        | ~ ( knows @ SV20 )
        | ( knows @ ( mac @ SV13 @ SV20 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[85]) ).

thf(101,plain,
    ! [SV21: $i,SV14: $i] :
      ( ( ! [SY45: $i] :
            ~ ( ~ ~ ( ~ ! [SX3: $i,SX4: $i] :
                          ( ~ ( knows @ SX3 )
                          | ~ ( knows @ SX4 )
                          | ( ( first @ ( extract @ SX4 @ k_ca ) )
                           != s )
                          | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
                           != n )
                          | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
                    | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) )
              | ~ ( ~ ( knows @ SV14 )
                  | ~ ( knows @ SV21 )
                  | ~ ( knows @ SY45 )
                  | ( ( second @ ( extract @ SY45 @ SV21 ) )
                   != SV21 )
                  | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[87]) ).

thf(102,plain,
    ( ( ~ ~ ( ~ ( knows @ k_ca )
            | ~ ( knows @ ( inverse @ k_a ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[88]) ).

thf(103,plain,
    ( ( ~ ( knows @ k_a ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[88]) ).

thf(104,plain,
    ( ( ~ ! [SX0: $i] :
            ( ! [SX1: $i] :
                ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
            | ( knows @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[89]) ).

thf(105,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
            | ( knows @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[89]) ).

thf(106,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ~ ( knows @ SX0 )
                  | ( knows @ ( head @ SX0 ) ) )
            | ~ ! [SX0: $i] :
                  ( ~ ( knows @ SX0 )
                  | ( knows @ ( tail @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[90]) ).

thf(107,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( knows @ SX0 )
            | ( knows @ ( hash @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[90]) ).

thf(108,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                                          ( ~ ( knows @ SX0 )
                                          | ~ ( knows @ SX1 )
                                          | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                                    | ~ ! [SX0: $i,SX1: $i] :
                                          ( ~ ( knows @ SX0 )
                                          | ~ ( knows @ SX1 )
                                          | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                              | ~ ! [SX0: $i,SX1: $i] :
                                    ( ~ ( knows @ SX0 )
                                    | ~ ( knows @ SX1 )
                                    | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
                        | ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( extract @ SX0 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[91]) ).

thf(109,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( sign @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[91]) ).

thf(110,plain,
    ! [SV22: $i,SV1: $i] :
      ( ( ( ~ ( knows @ ( encrypt @ SV1 @ SV22 ) )
          | ~ ( knows @ ( inverse @ SV22 ) ) )
        = $true )
      | ( ( knows @ SV1 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[92]) ).

thf(111,plain,
    ! [SV23: $i,SV2: $i] :
      ( ( ( ~ ( knows @ ( symmetric_encrypt @ SV2 @ SV23 ) )
          | ~ ( knows @ SV23 ) )
        = $true )
      | ( ( knows @ SV2 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[93]) ).

thf(112,plain,
    ! [SV24: $i,SV3: $i] :
      ( ( ( ~ ( knows @ ( sign @ SV3 @ ( inverse @ SV24 ) ) )
          | ~ ( knows @ SV24 ) )
        = $true )
      | ( ( knows @ SV3 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[94]) ).

thf(113,plain,
    ! [SV20: $i,SV13: $i] :
      ( ( ( ~ ( knows @ SV13 )
          | ~ ( knows @ SV20 ) )
        = $true )
      | ( ( knows @ ( mac @ SV13 @ SV20 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[100]) ).

thf(114,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ~ ( ~ ~ ( ~ ! [SX3: $i,SX4: $i] :
                        ( ~ ( knows @ SX3 )
                        | ~ ( knows @ SX4 )
                        | ( ( first @ ( extract @ SX4 @ k_ca ) )
                         != s )
                        | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
                         != n )
                        | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
                  | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) )
            | ~ ( ~ ( knows @ SV14 )
                | ~ ( knows @ SV21 )
                | ~ ( knows @ SV25 )
                | ( ( second @ ( extract @ SV25 @ SV21 ) )
                 != SV21 )
                | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[101]) ).

thf(115,plain,
    ( ( ~ ( ~ ( knows @ k_ca )
          | ~ ( knows @ ( inverse @ k_a ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[102]) ).

thf(116,plain,
    ( ( knows @ k_a )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[103]) ).

thf(117,plain,
    ( ( ! [SX0: $i] :
          ( ! [SX1: $i] :
              ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
          | ( knows @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[104]) ).

thf(118,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ ( concatenate @ SX0 @ SX1 ) )
          | ( knows @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[105]) ).

thf(119,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( knows @ SX0 )
                | ( knows @ ( head @ SX0 ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( knows @ SX0 )
                | ( knows @ ( tail @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[106]) ).

thf(120,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( knows @ SX0 )
          | ( knows @ ( hash @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[107]) ).

thf(121,plain,
    ( ( ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                                        ( ~ ( knows @ SX0 )
                                        | ~ ( knows @ SX1 )
                                        | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                                  | ~ ! [SX0: $i,SX1: $i] :
                                        ( ~ ( knows @ SX0 )
                                        | ~ ( knows @ SX1 )
                                        | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                            | ~ ! [SX0: $i,SX1: $i] :
                                  ( ~ ( knows @ SX0 )
                                  | ~ ( knows @ SX1 )
                                  | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
                      | ~ ! [SX0: $i,SX1: $i] :
                            ( ~ ( knows @ SX0 )
                            | ~ ( knows @ SX1 )
                            | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( knows @ SX0 )
                      | ~ ( knows @ SX1 )
                      | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ( knows @ ( extract @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[108]) ).

thf(122,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ SX0 )
          | ~ ( knows @ SX1 )
          | ( knows @ ( sign @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[109]) ).

thf(123,plain,
    ! [SV22: $i,SV1: $i] :
      ( ( ( ~ ( knows @ ( encrypt @ SV1 @ SV22 ) ) )
        = $true )
      | ( ( ~ ( knows @ ( inverse @ SV22 ) ) )
        = $true )
      | ( ( knows @ SV1 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[110]) ).

thf(124,plain,
    ! [SV23: $i,SV2: $i] :
      ( ( ( ~ ( knows @ ( symmetric_encrypt @ SV2 @ SV23 ) ) )
        = $true )
      | ( ( ~ ( knows @ SV23 ) )
        = $true )
      | ( ( knows @ SV2 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[111]) ).

thf(125,plain,
    ! [SV24: $i,SV3: $i] :
      ( ( ( ~ ( knows @ ( sign @ SV3 @ ( inverse @ SV24 ) ) ) )
        = $true )
      | ( ( ~ ( knows @ SV24 ) )
        = $true )
      | ( ( knows @ SV3 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[112]) ).

thf(126,plain,
    ! [SV20: $i,SV13: $i] :
      ( ( ( ~ ( knows @ SV13 ) )
        = $true )
      | ( ( ~ ( knows @ SV20 ) )
        = $true )
      | ( ( knows @ ( mac @ SV13 @ SV20 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[113]) ).

thf(127,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ~ ~ ( ~ ! [SX3: $i,SX4: $i] :
                    ( ~ ( knows @ SX3 )
                    | ~ ( knows @ SX4 )
                    | ( ( first @ ( extract @ SX4 @ k_ca ) )
                     != s )
                    | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
                     != n )
                    | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
              | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) )
        | ~ ( ~ ( knows @ SV14 )
            | ~ ( knows @ SV21 )
            | ~ ( knows @ SV25 )
            | ( ( second @ ( extract @ SV25 @ SV21 ) )
             != SV21 )
            | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[114]) ).

thf(128,plain,
    ( ( ~ ( knows @ k_ca )
      | ~ ( knows @ ( inverse @ k_a ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[115]) ).

thf(129,plain,
    ! [SV26: $i] :
      ( ( ! [SY50: $i] :
            ~ ( knows @ ( concatenate @ SV26 @ SY50 ) )
        | ( knows @ SV26 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[117]) ).

thf(130,plain,
    ! [SV27: $i] :
      ( ( ! [SY51: $i] :
            ( ~ ( knows @ ( concatenate @ SV27 @ SY51 ) )
            | ( knows @ SY51 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[118]) ).

thf(131,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( knows @ SX0 )
            | ( knows @ ( head @ SX0 ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( knows @ SX0 )
            | ( knows @ ( tail @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[119]) ).

thf(132,plain,
    ! [SV28: $i] :
      ( ( ~ ( knows @ SV28 )
        | ( knows @ ( hash @ SV28 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[120]) ).

thf(133,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                                    ( ~ ( knows @ SX0 )
                                    | ~ ( knows @ SX1 )
                                    | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                              | ~ ! [SX0: $i,SX1: $i] :
                                    ( ~ ( knows @ SX0 )
                                    | ~ ( knows @ SX1 )
                                    | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                        | ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( extract @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[121]) ).

thf(134,plain,
    ! [SV29: $i] :
      ( ( ! [SY52: $i] :
            ( ~ ( knows @ SV29 )
            | ~ ( knows @ SY52 )
            | ( knows @ ( sign @ SV29 @ SY52 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[122]) ).

thf(135,plain,
    ! [SV22: $i,SV1: $i] :
      ( ( ( knows @ ( encrypt @ SV1 @ SV22 ) )
        = $false )
      | ( ( ~ ( knows @ ( inverse @ SV22 ) ) )
        = $true )
      | ( ( knows @ SV1 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[123]) ).

thf(136,plain,
    ! [SV23: $i,SV2: $i] :
      ( ( ( knows @ ( symmetric_encrypt @ SV2 @ SV23 ) )
        = $false )
      | ( ( ~ ( knows @ SV23 ) )
        = $true )
      | ( ( knows @ SV2 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[124]) ).

thf(137,plain,
    ! [SV24: $i,SV3: $i] :
      ( ( ( knows @ ( sign @ SV3 @ ( inverse @ SV24 ) ) )
        = $false )
      | ( ( ~ ( knows @ SV24 ) )
        = $true )
      | ( ( knows @ SV3 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[125]) ).

thf(138,plain,
    ! [SV20: $i,SV13: $i] :
      ( ( ( knows @ SV13 )
        = $false )
      | ( ( ~ ( knows @ SV20 ) )
        = $true )
      | ( ( knows @ ( mac @ SV13 @ SV20 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[126]) ).

thf(139,plain,
    ( ( ~ ~ ( ~ ! [SX3: $i,SX4: $i] :
                  ( ~ ( knows @ SX3 )
                  | ~ ( knows @ SX4 )
                  | ( ( first @ ( extract @ SX4 @ k_ca ) )
                   != s )
                  | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
                   != n )
                  | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
            | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[127]) ).

thf(140,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ~ ( ~ ( knows @ SV14 )
            | ~ ( knows @ SV21 )
            | ~ ( knows @ SV25 )
            | ( ( second @ ( extract @ SV25 @ SV21 ) )
             != SV21 )
            | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[127]) ).

thf(141,plain,
    ( ( ~ ( knows @ k_ca ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[128]) ).

thf(142,plain,
    ( ( ~ ( knows @ ( inverse @ k_a ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[128]) ).

thf(143,plain,
    ! [SV26: $i] :
      ( ( ( ! [SY50: $i] :
              ~ ( knows @ ( concatenate @ SV26 @ SY50 ) ) )
        = $true )
      | ( ( knows @ SV26 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[129]) ).

thf(144,plain,
    ! [SV30: $i,SV27: $i] :
      ( ( ~ ( knows @ ( concatenate @ SV27 @ SV30 ) )
        | ( knows @ SV30 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[130]) ).

thf(145,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( knows @ SX0 )
            | ( knows @ ( head @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[131]) ).

thf(146,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( knows @ SX0 )
            | ( knows @ ( tail @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[131]) ).

thf(147,plain,
    ! [SV28: $i] :
      ( ( ( ~ ( knows @ SV28 ) )
        = $true )
      | ( ( knows @ ( hash @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[132]) ).

thf(148,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                                    ( ~ ( knows @ SX0 )
                                    | ~ ( knows @ SX1 )
                                    | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                              | ~ ! [SX0: $i,SX1: $i] :
                                    ( ~ ( knows @ SX0 )
                                    | ~ ( knows @ SX1 )
                                    | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                        | ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[133]) ).

thf(149,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( extract @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[133]) ).

thf(150,plain,
    ! [SV31: $i,SV29: $i] :
      ( ( ~ ( knows @ SV29 )
        | ~ ( knows @ SV31 )
        | ( knows @ ( sign @ SV29 @ SV31 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[134]) ).

thf(151,plain,
    ! [SV1: $i,SV22: $i] :
      ( ( ( knows @ ( inverse @ SV22 ) )
        = $false )
      | ( ( knows @ ( encrypt @ SV1 @ SV22 ) )
        = $false )
      | ( ( knows @ SV1 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[135]) ).

thf(152,plain,
    ! [SV2: $i,SV23: $i] :
      ( ( ( knows @ SV23 )
        = $false )
      | ( ( knows @ ( symmetric_encrypt @ SV2 @ SV23 ) )
        = $false )
      | ( ( knows @ SV2 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[136]) ).

thf(153,plain,
    ! [SV3: $i,SV24: $i] :
      ( ( ( knows @ SV24 )
        = $false )
      | ( ( knows @ ( sign @ SV3 @ ( inverse @ SV24 ) ) )
        = $false )
      | ( ( knows @ SV3 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[137]) ).

thf(154,plain,
    ! [SV13: $i,SV20: $i] :
      ( ( ( knows @ SV20 )
        = $false )
      | ( ( knows @ SV13 )
        = $false )
      | ( ( knows @ ( mac @ SV13 @ SV20 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[138]) ).

thf(155,plain,
    ( ( ~ ( ~ ! [SX3: $i,SX4: $i] :
                ( ~ ( knows @ SX3 )
                | ~ ( knows @ SX4 )
                | ( ( first @ ( extract @ SX4 @ k_ca ) )
                 != s )
                | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
                 != n )
                | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
          | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[139]) ).

thf(156,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ~ ( knows @ SV14 )
        | ~ ( knows @ SV21 )
        | ~ ( knows @ SV25 )
        | ( ( second @ ( extract @ SV25 @ SV21 ) )
         != SV21 )
        | ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[140]) ).

thf(157,plain,
    ( ( knows @ k_ca )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[141]) ).

thf(158,plain,
    ( ( knows @ ( inverse @ k_a ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[142]) ).

thf(159,plain,
    ! [SV32: $i,SV26: $i] :
      ( ( ( ~ ( knows @ ( concatenate @ SV26 @ SV32 ) ) )
        = $true )
      | ( ( knows @ SV26 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[143]) ).

thf(160,plain,
    ! [SV30: $i,SV27: $i] :
      ( ( ( ~ ( knows @ ( concatenate @ SV27 @ SV30 ) ) )
        = $true )
      | ( ( knows @ SV30 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[144]) ).

thf(161,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( knows @ SX0 )
          | ( knows @ ( head @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[145]) ).

thf(162,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( knows @ SX0 )
          | ( knows @ ( tail @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[146]) ).

thf(163,plain,
    ! [SV28: $i] :
      ( ( ( knows @ SV28 )
        = $false )
      | ( ( knows @ ( hash @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[147]) ).

thf(164,plain,
    ( ( ~ ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                                  ( ~ ( knows @ SX0 )
                                  | ~ ( knows @ SX1 )
                                  | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                            | ~ ! [SX0: $i,SX1: $i] :
                                  ( ~ ( knows @ SX0 )
                                  | ~ ( knows @ SX1 )
                                  | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                      | ~ ! [SX0: $i,SX1: $i] :
                            ( ~ ( knows @ SX0 )
                            | ~ ( knows @ SX1 )
                            | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( knows @ SX0 )
                      | ~ ( knows @ SX1 )
                      | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[148]) ).

thf(165,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ SX0 )
          | ~ ( knows @ SX1 )
          | ( knows @ ( extract @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[149]) ).

thf(166,plain,
    ! [SV31: $i,SV29: $i] :
      ( ( ( ~ ( knows @ SV29 )
          | ~ ( knows @ SV31 ) )
        = $true )
      | ( ( knows @ ( sign @ SV29 @ SV31 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[150]) ).

thf(167,plain,
    ( ( ~ ! [SX3: $i,SX4: $i] :
            ( ~ ( knows @ SX3 )
            | ~ ( knows @ SX4 )
            | ( ( first @ ( extract @ SX4 @ k_ca ) )
             != s )
            | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
             != n )
            | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) )
      | ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[155]) ).

thf(168,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ( ~ ( knows @ SV14 )
          | ~ ( knows @ SV21 )
          | ~ ( knows @ SV25 )
          | ( ( second @ ( extract @ SV25 @ SV21 ) )
           != SV21 ) )
        = $true )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[156]) ).

thf(169,plain,
    ! [SV32: $i,SV26: $i] :
      ( ( ( knows @ ( concatenate @ SV26 @ SV32 ) )
        = $false )
      | ( ( knows @ SV26 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[159]) ).

thf(170,plain,
    ! [SV30: $i,SV27: $i] :
      ( ( ( knows @ ( concatenate @ SV27 @ SV30 ) )
        = $false )
      | ( ( knows @ SV30 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[160]) ).

thf(171,plain,
    ! [SV33: $i] :
      ( ( ~ ( knows @ SV33 )
        | ( knows @ ( head @ SV33 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[161]) ).

thf(172,plain,
    ! [SV34: $i] :
      ( ( ~ ( knows @ SV34 )
        | ( knows @ ( tail @ SV34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[162]) ).

thf(173,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                        | ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[164]) ).

thf(174,plain,
    ! [SV35: $i] :
      ( ( ! [SY53: $i] :
            ( ~ ( knows @ SV35 )
            | ~ ( knows @ SY53 )
            | ( knows @ ( extract @ SV35 @ SY53 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[165]) ).

thf(175,plain,
    ! [SV31: $i,SV29: $i] :
      ( ( ( ~ ( knows @ SV29 ) )
        = $true )
      | ( ( ~ ( knows @ SV31 ) )
        = $true )
      | ( ( knows @ ( sign @ SV29 @ SV31 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[166]) ).

thf(176,plain,
    ( ( ~ ! [SX3: $i,SX4: $i] :
            ( ~ ( knows @ SX3 )
            | ~ ( knows @ SX4 )
            | ( ( first @ ( extract @ SX4 @ k_ca ) )
             != s )
            | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
             != n )
            | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[167]) ).

thf(177,plain,
    ( ( ~ ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[167]) ).

thf(178,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ( ~ ( knows @ SV14 )
          | ~ ( knows @ SV21 )
          | ~ ( knows @ SV25 ) )
        = $true )
      | ( ( ( ( second @ ( extract @ SV25 @ SV21 ) )
           != SV21 ) )
        = $true )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[168]) ).

thf(179,plain,
    ! [SV33: $i] :
      ( ( ( ~ ( knows @ SV33 ) )
        = $true )
      | ( ( knows @ ( head @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[171]) ).

thf(180,plain,
    ! [SV34: $i] :
      ( ( ( ~ ( knows @ SV34 ) )
        = $true )
      | ( ( knows @ ( tail @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[172]) ).

thf(181,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                        | ~ ! [SX0: $i,SX1: $i] :
                              ( ~ ( knows @ SX0 )
                              | ~ ( knows @ SX1 )
                              | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[173]) ).

thf(182,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[173]) ).

thf(183,plain,
    ! [SV36: $i,SV35: $i] :
      ( ( ~ ( knows @ SV35 )
        | ~ ( knows @ SV36 )
        | ( knows @ ( extract @ SV35 @ SV36 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[174]) ).

thf(184,plain,
    ! [SV31: $i,SV29: $i] :
      ( ( ( knows @ SV29 )
        = $false )
      | ( ( ~ ( knows @ SV31 ) )
        = $true )
      | ( ( knows @ ( sign @ SV29 @ SV31 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[175]) ).

thf(185,plain,
    ( ( ! [SX3: $i,SX4: $i] :
          ( ~ ( knows @ SX3 )
          | ~ ( knows @ SX4 )
          | ( ( first @ ( extract @ SX4 @ k_ca ) )
           != s )
          | ( ( second @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) )
           != n )
          | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SX3 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SX4 @ k_ca ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[176]) ).

thf(186,plain,
    ( ( knows @ ( concatenate @ n @ ( concatenate @ k_c @ ( sign @ ( concatenate @ c @ ( concatenate @ k_c @ eol ) ) @ ( inverse @ k_c ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[177]) ).

thf(187,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ( ~ ( knows @ SV14 )
          | ~ ( knows @ SV21 ) )
        = $true )
      | ( ( ~ ( knows @ SV25 ) )
        = $true )
      | ( ( ( ( second @ ( extract @ SV25 @ SV21 ) )
           != SV21 ) )
        = $true )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[178]) ).

thf(188,plain,
    ! [SV33: $i] :
      ( ( ( knows @ SV33 )
        = $false )
      | ( ( knows @ ( head @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[179]) ).

thf(189,plain,
    ! [SV34: $i] :
      ( ( ( knows @ SV34 )
        = $false )
      | ( ( knows @ ( tail @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[180]) ).

thf(190,plain,
    ( ( ~ ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                            ( ~ ( knows @ SX0 )
                            | ~ ( knows @ SX1 )
                            | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                      | ~ ! [SX0: $i,SX1: $i] :
                            ( ~ ( knows @ SX0 )
                            | ~ ( knows @ SX1 )
                            | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( knows @ SX0 )
                      | ~ ( knows @ SX1 )
                      | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[181]) ).

thf(191,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ SX0 )
          | ~ ( knows @ SX1 )
          | ( knows @ ( symmetric_decrypt @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[182]) ).

thf(192,plain,
    ! [SV36: $i,SV35: $i] :
      ( ( ( ~ ( knows @ SV35 )
          | ~ ( knows @ SV36 ) )
        = $true )
      | ( ( knows @ ( extract @ SV35 @ SV36 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[183]) ).

thf(193,plain,
    ! [SV29: $i,SV31: $i] :
      ( ( ( knows @ SV31 )
        = $false )
      | ( ( knows @ SV29 )
        = $false )
      | ( ( knows @ ( sign @ SV29 @ SV31 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[184]) ).

thf(194,plain,
    ! [SV37: $i] :
      ( ( ! [SY54: $i] :
            ( ~ ( knows @ SV37 )
            | ~ ( knows @ SY54 )
            | ( ( first @ ( extract @ SY54 @ k_ca ) )
             != s )
            | ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SY54 @ k_ca ) ) ) )
             != n )
            | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SY54 @ k_ca ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[185]) ).

thf(195,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ( ~ ( knows @ SV14 ) )
        = $true )
      | ( ( ~ ( knows @ SV21 ) )
        = $true )
      | ( ( ~ ( knows @ SV25 ) )
        = $true )
      | ( ( ( ( second @ ( extract @ SV25 @ SV21 ) )
           != SV21 ) )
        = $true )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[187]) ).

thf(196,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[190]) ).

thf(197,plain,
    ! [SV38: $i] :
      ( ( ! [SY55: $i] :
            ( ~ ( knows @ SV38 )
            | ~ ( knows @ SY55 )
            | ( knows @ ( symmetric_decrypt @ SV38 @ SY55 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[191]) ).

thf(198,plain,
    ! [SV36: $i,SV35: $i] :
      ( ( ( ~ ( knows @ SV35 ) )
        = $true )
      | ( ( ~ ( knows @ SV36 ) )
        = $true )
      | ( ( knows @ ( extract @ SV35 @ SV36 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[192]) ).

thf(199,plain,
    ! [SV39: $i,SV37: $i] :
      ( ( ~ ( knows @ SV37 )
        | ~ ( knows @ SV39 )
        | ( ( first @ ( extract @ SV39 @ k_ca ) )
         != s )
        | ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
         != n )
        | ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[194]) ).

thf(200,plain,
    ! [SV25: $i,SV21: $i,SV14: $i] :
      ( ( ( knows @ SV14 )
        = $false )
      | ( ( ~ ( knows @ SV21 ) )
        = $true )
      | ( ( ~ ( knows @ SV25 ) )
        = $true )
      | ( ( ( ( second @ ( extract @ SV25 @ SV21 ) )
           != SV21 ) )
        = $true )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[195]) ).

thf(201,plain,
    ( ( ~ ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                  | ~ ! [SX0: $i,SX1: $i] :
                        ( ~ ( knows @ SX0 )
                        | ~ ( knows @ SX1 )
                        | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[196]) ).

thf(202,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[196]) ).

thf(203,plain,
    ! [SV40: $i,SV38: $i] :
      ( ( ~ ( knows @ SV38 )
        | ~ ( knows @ SV40 )
        | ( knows @ ( symmetric_decrypt @ SV38 @ SV40 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[197]) ).

thf(204,plain,
    ! [SV36: $i,SV35: $i] :
      ( ( ( knows @ SV35 )
        = $false )
      | ( ( ~ ( knows @ SV36 ) )
        = $true )
      | ( ( knows @ ( extract @ SV35 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[198]) ).

thf(205,plain,
    ! [SV39: $i,SV37: $i] :
      ( ( ( ~ ( knows @ SV37 )
          | ~ ( knows @ SV39 )
          | ( ( first @ ( extract @ SV39 @ k_ca ) )
           != s )
          | ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
           != n ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[199]) ).

thf(206,plain,
    ! [SV25: $i,SV14: $i,SV21: $i] :
      ( ( ( knows @ SV21 )
        = $false )
      | ( ( knows @ SV14 )
        = $false )
      | ( ( ~ ( knows @ SV25 ) )
        = $true )
      | ( ( ( ( second @ ( extract @ SV25 @ SV21 ) )
           != SV21 ) )
        = $true )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[200]) ).

thf(207,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( knows @ SX0 )
                      | ~ ( knows @ SX1 )
                      | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( knows @ SX0 )
                      | ~ ( knows @ SX1 )
                      | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[201]) ).

thf(208,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ SX0 )
          | ~ ( knows @ SX1 )
          | ( knows @ ( decrypt @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[202]) ).

thf(209,plain,
    ! [SV40: $i,SV38: $i] :
      ( ( ( ~ ( knows @ SV38 )
          | ~ ( knows @ SV40 ) )
        = $true )
      | ( ( knows @ ( symmetric_decrypt @ SV38 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[203]) ).

thf(210,plain,
    ! [SV35: $i,SV36: $i] :
      ( ( ( knows @ SV36 )
        = $false )
      | ( ( knows @ SV35 )
        = $false )
      | ( ( knows @ ( extract @ SV35 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[204]) ).

thf(211,plain,
    ! [SV39: $i,SV37: $i] :
      ( ( ( ~ ( knows @ SV37 )
          | ~ ( knows @ SV39 )
          | ( ( first @ ( extract @ SV39 @ k_ca ) )
           != s ) )
        = $true )
      | ( ( ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
           != n ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[205]) ).

thf(212,plain,
    ! [SV21: $i,SV14: $i,SV25: $i] :
      ( ( ( knows @ SV25 )
        = $false )
      | ( ( knows @ SV14 )
        = $false )
      | ( ( knows @ SV21 )
        = $false )
      | ( ( ( ( second @ ( extract @ SV25 @ SV21 ) )
           != SV21 ) )
        = $true )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[206]) ).

thf(213,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[207]) ).

thf(214,plain,
    ! [SV41: $i] :
      ( ( ! [SY56: $i] :
            ( ~ ( knows @ SV41 )
            | ~ ( knows @ SY56 )
            | ( knows @ ( decrypt @ SV41 @ SY56 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[208]) ).

thf(215,plain,
    ! [SV40: $i,SV38: $i] :
      ( ( ( ~ ( knows @ SV38 ) )
        = $true )
      | ( ( ~ ( knows @ SV40 ) )
        = $true )
      | ( ( knows @ ( symmetric_decrypt @ SV38 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[209]) ).

thf(216,plain,
    ! [SV39: $i,SV37: $i] :
      ( ( ( ~ ( knows @ SV37 )
          | ~ ( knows @ SV39 ) )
        = $true )
      | ( ( ( ( first @ ( extract @ SV39 @ k_ca ) )
           != s ) )
        = $true )
      | ( ( ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
           != n ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[211]) ).

thf(217,plain,
    ! [SV14: $i,SV21: $i,SV25: $i] :
      ( ( ( ( second @ ( extract @ SV25 @ SV21 ) )
          = SV21 )
        = $false )
      | ( ( knows @ SV21 )
        = $false )
      | ( ( knows @ SV14 )
        = $false )
      | ( ( knows @ SV25 )
        = $false )
      | ( ( knows @ ( concatenate @ ( encrypt @ ( sign @ ( concatenate @ ( kgen @ SV21 ) @ ( concatenate @ SV14 @ eol ) ) @ ( inverse @ k_s ) ) @ SV21 ) @ ( sign @ ( concatenate @ s @ ( concatenate @ k_s @ eol ) ) @ ( inverse @ k_ca ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[212]) ).

thf(218,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( knows @ SX0 )
                  | ~ ( knows @ SX1 )
                  | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[213]) ).

thf(219,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[213]) ).

thf(220,plain,
    ! [SV42: $i,SV41: $i] :
      ( ( ~ ( knows @ SV41 )
        | ~ ( knows @ SV42 )
        | ( knows @ ( decrypt @ SV41 @ SV42 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[214]) ).

thf(221,plain,
    ! [SV40: $i,SV38: $i] :
      ( ( ( knows @ SV38 )
        = $false )
      | ( ( ~ ( knows @ SV40 ) )
        = $true )
      | ( ( knows @ ( symmetric_decrypt @ SV38 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[215]) ).

thf(222,plain,
    ! [SV39: $i,SV37: $i] :
      ( ( ( ~ ( knows @ SV37 ) )
        = $true )
      | ( ( ~ ( knows @ SV39 ) )
        = $true )
      | ( ( ( ( first @ ( extract @ SV39 @ k_ca ) )
           != s ) )
        = $true )
      | ( ( ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
           != n ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[216]) ).

thf(223,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( knows @ SX0 )
                | ~ ( knows @ SX1 )
                | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[218]) ).

thf(224,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ SX0 )
          | ~ ( knows @ SX1 )
          | ( knows @ ( symmetric_encrypt @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[219]) ).

thf(225,plain,
    ! [SV42: $i,SV41: $i] :
      ( ( ( ~ ( knows @ SV41 )
          | ~ ( knows @ SV42 ) )
        = $true )
      | ( ( knows @ ( decrypt @ SV41 @ SV42 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[220]) ).

thf(226,plain,
    ! [SV38: $i,SV40: $i] :
      ( ( ( knows @ SV40 )
        = $false )
      | ( ( knows @ SV38 )
        = $false )
      | ( ( knows @ ( symmetric_decrypt @ SV38 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[221]) ).

thf(227,plain,
    ! [SV39: $i,SV37: $i] :
      ( ( ( knows @ SV37 )
        = $false )
      | ( ( ~ ( knows @ SV39 ) )
        = $true )
      | ( ( ( ( first @ ( extract @ SV39 @ k_ca ) )
           != s ) )
        = $true )
      | ( ( ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
           != n ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[222]) ).

thf(228,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( concatenate @ SX0 @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[223]) ).

thf(229,plain,
    ! [SV43: $i] :
      ( ( ! [SY57: $i] :
            ( ~ ( knows @ SV43 )
            | ~ ( knows @ SY57 )
            | ( knows @ ( symmetric_encrypt @ SV43 @ SY57 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[224]) ).

thf(230,plain,
    ! [SV42: $i,SV41: $i] :
      ( ( ( ~ ( knows @ SV41 ) )
        = $true )
      | ( ( ~ ( knows @ SV42 ) )
        = $true )
      | ( ( knows @ ( decrypt @ SV41 @ SV42 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[225]) ).

thf(231,plain,
    ! [SV37: $i,SV39: $i] :
      ( ( ( knows @ SV39 )
        = $false )
      | ( ( knows @ SV37 )
        = $false )
      | ( ( ( ( first @ ( extract @ SV39 @ k_ca ) )
           != s ) )
        = $true )
      | ( ( ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
           != n ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[227]) ).

thf(232,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( concatenate @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[228]) ).

thf(233,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( knows @ SX0 )
            | ~ ( knows @ SX1 )
            | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[228]) ).

thf(234,plain,
    ! [SV44: $i,SV43: $i] :
      ( ( ~ ( knows @ SV43 )
        | ~ ( knows @ SV44 )
        | ( knows @ ( symmetric_encrypt @ SV43 @ SV44 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[229]) ).

thf(235,plain,
    ! [SV42: $i,SV41: $i] :
      ( ( ( knows @ SV41 )
        = $false )
      | ( ( ~ ( knows @ SV42 ) )
        = $true )
      | ( ( knows @ ( decrypt @ SV41 @ SV42 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[230]) ).

thf(236,plain,
    ! [SV37: $i,SV39: $i] :
      ( ( ( ( first @ ( extract @ SV39 @ k_ca ) )
          = s )
        = $false )
      | ( ( knows @ SV37 )
        = $false )
      | ( ( knows @ SV39 )
        = $false )
      | ( ( ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
           != n ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[231]) ).

thf(237,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ SX0 )
          | ~ ( knows @ SX1 )
          | ( knows @ ( concatenate @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[232]) ).

thf(238,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( knows @ SX0 )
          | ~ ( knows @ SX1 )
          | ( knows @ ( encrypt @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[233]) ).

thf(239,plain,
    ! [SV44: $i,SV43: $i] :
      ( ( ( ~ ( knows @ SV43 )
          | ~ ( knows @ SV44 ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ SV43 @ SV44 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[234]) ).

thf(240,plain,
    ! [SV41: $i,SV42: $i] :
      ( ( ( knows @ SV42 )
        = $false )
      | ( ( knows @ SV41 )
        = $false )
      | ( ( knows @ ( decrypt @ SV41 @ SV42 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[235]) ).

thf(241,plain,
    ! [SV39: $i,SV37: $i] :
      ( ( ( ( second @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) )
          = n )
        = $false )
      | ( ( knows @ SV39 )
        = $false )
      | ( ( knows @ SV37 )
        = $false )
      | ( ( ( first @ ( extract @ SV39 @ k_ca ) )
          = s )
        = $false )
      | ( ( knows @ ( symmetric_encrypt @ secret @ ( first @ ( extract @ ( decrypt @ SV37 @ ( inverse @ k_c ) ) @ ( second @ ( extract @ SV39 @ k_ca ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[236]) ).

thf(242,plain,
    ! [SV45: $i] :
      ( ( ! [SY58: $i] :
            ( ~ ( knows @ SV45 )
            | ~ ( knows @ SY58 )
            | ( knows @ ( concatenate @ SV45 @ SY58 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[237]) ).

thf(243,plain,
    ! [SV46: $i] :
      ( ( ! [SY59: $i] :
            ( ~ ( knows @ SV46 )
            | ~ ( knows @ SY59 )
            | ( knows @ ( encrypt @ SV46 @ SY59 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[238]) ).

thf(244,plain,
    ! [SV44: $i,SV43: $i] :
      ( ( ( ~ ( knows @ SV43 ) )
        = $true )
      | ( ( ~ ( knows @ SV44 ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ SV43 @ SV44 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[239]) ).

thf(245,plain,
    ! [SV47: $i,SV45: $i] :
      ( ( ~ ( knows @ SV45 )
        | ~ ( knows @ SV47 )
        | ( knows @ ( concatenate @ SV45 @ SV47 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[242]) ).

thf(246,plain,
    ! [SV48: $i,SV46: $i] :
      ( ( ~ ( knows @ SV46 )
        | ~ ( knows @ SV48 )
        | ( knows @ ( encrypt @ SV46 @ SV48 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[243]) ).

thf(247,plain,
    ! [SV44: $i,SV43: $i] :
      ( ( ( knows @ SV43 )
        = $false )
      | ( ( ~ ( knows @ SV44 ) )
        = $true )
      | ( ( knows @ ( symmetric_encrypt @ SV43 @ SV44 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[244]) ).

thf(248,plain,
    ! [SV47: $i,SV45: $i] :
      ( ( ( ~ ( knows @ SV45 )
          | ~ ( knows @ SV47 ) )
        = $true )
      | ( ( knows @ ( concatenate @ SV45 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[245]) ).

thf(249,plain,
    ! [SV48: $i,SV46: $i] :
      ( ( ( ~ ( knows @ SV46 )
          | ~ ( knows @ SV48 ) )
        = $true )
      | ( ( knows @ ( encrypt @ SV46 @ SV48 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[246]) ).

thf(250,plain,
    ! [SV43: $i,SV44: $i] :
      ( ( ( knows @ SV44 )
        = $false )
      | ( ( knows @ SV43 )
        = $false )
      | ( ( knows @ ( symmetric_encrypt @ SV43 @ SV44 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[247]) ).

thf(251,plain,
    ! [SV47: $i,SV45: $i] :
      ( ( ( ~ ( knows @ SV45 ) )
        = $true )
      | ( ( ~ ( knows @ SV47 ) )
        = $true )
      | ( ( knows @ ( concatenate @ SV45 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[248]) ).

thf(252,plain,
    ! [SV48: $i,SV46: $i] :
      ( ( ( ~ ( knows @ SV46 ) )
        = $true )
      | ( ( ~ ( knows @ SV48 ) )
        = $true )
      | ( ( knows @ ( encrypt @ SV46 @ SV48 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[249]) ).

thf(253,plain,
    ! [SV47: $i,SV45: $i] :
      ( ( ( knows @ SV45 )
        = $false )
      | ( ( ~ ( knows @ SV47 ) )
        = $true )
      | ( ( knows @ ( concatenate @ SV45 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[251]) ).

thf(254,plain,
    ! [SV48: $i,SV46: $i] :
      ( ( ( knows @ SV46 )
        = $false )
      | ( ( ~ ( knows @ SV48 ) )
        = $true )
      | ( ( knows @ ( encrypt @ SV46 @ SV48 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[252]) ).

thf(255,plain,
    ! [SV45: $i,SV47: $i] :
      ( ( ( knows @ SV47 )
        = $false )
      | ( ( knows @ SV45 )
        = $false )
      | ( ( knows @ ( concatenate @ SV45 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[253]) ).

thf(256,plain,
    ! [SV46: $i,SV48: $i] :
      ( ( ( knows @ SV48 )
        = $false )
      | ( ( knows @ SV46 )
        = $false )
      | ( ( knows @ ( encrypt @ SV46 @ SV48 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[254]) ).

thf(257,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[81,256,255,250,241,240,226,217,210,193,189,188,186,170,169,163,158,157,154,153,152,151,116,99,98,97,96,95,86,84,83,82]) ).

thf(258,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[257]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : SWV233+1 : TPTP v8.1.0. Released v3.2.0.
% 0.10/0.13  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.13/0.33  % Computer : n012.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Wed Jun 15 10:48:39 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.36  
% 0.13/0.36   No.of.Axioms: 18
% 0.13/0.36  
% 0.13/0.36   Length.of.Defs: 0
% 0.13/0.36  
% 0.13/0.36   Contains.Choice.Funs: false
% 0.13/0.39  (rf:0,axioms:18,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:600,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:20,loop_count:0,foatp_calls:0,translation:fof_full).................
% 33.86/34.05  
% 33.86/34.05  ********************************
% 33.86/34.05  *   All subproblems solved!    *
% 33.86/34.05  ********************************
% 33.86/34.05  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:18,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:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:257,loop_count:0,foatp_calls:1,translation:fof_full)
% 33.86/34.08  
% 33.86/34.08  %**** Beginning of derivation protocol ****
% 33.86/34.08  % SZS output start CNFRefutation
% See solution above
% 33.86/34.08  
% 33.86/34.08  %**** End of derivation protocol ****
% 33.86/34.08  %**** no. of clauses in derivation: 258 ****
% 33.86/34.08  %**** clause counter: 257 ****
% 33.86/34.08  
% 33.86/34.08  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:18,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:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:257,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------