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

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SWC207+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n015.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Oct  7 10:52:48 AM UTC 2026

% Result   : Theorem 6.61s 1.60s
% Output   : CNFRefutation 6.61s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   42
%            Number of leaves      :   76
% Syntax   : Number of formulae    : 1102 ( 344 unt;   0 typ;   0 def)
%            Number of atoms       : 10422 (3765 equ;   0 cnn)
%            Maximal formula atoms :   17 (   9 avg)
%            Number of connectives : 14986 (3775   ~;3412   |; 106   &;7193   @)
%                                         (  39 <=>; 461  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   19 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   41 (  38 usr;  10 con; 0-2 aty)
%            Number of variables   : 2293 (   0   ^;2259   !;  34   ?;2293   :)

% Comments : 
%------------------------------------------------------------------------------
thf(tp_app,type,
    app: $i > $i > $i ).

thf(tp_cons,type,
    cons: $i > $i > $i ).

thf(tp_cyclefreeP,type,
    cyclefreeP: $i > $o ).

thf(tp_duplicatefreeP,type,
    duplicatefreeP: $i > $o ).

thf(tp_equalelemsP,type,
    equalelemsP: $i > $o ).

thf(tp_frontsegP,type,
    frontsegP: $i > $i > $o ).

thf(tp_geq,type,
    geq: $i > $i > $o ).

thf(tp_gt,type,
    gt: $i > $i > $o ).

thf(tp_hd,type,
    hd: $i > $i ).

thf(tp_leq,type,
    leq: $i > $i > $o ).

thf(tp_lt,type,
    lt: $i > $i > $o ).

thf(tp_memberP,type,
    memberP: $i > $i > $o ).

thf(tp_neq,type,
    neq: $i > $i > $o ).

thf(tp_nil,type,
    nil: $i ).

thf(tp_rearsegP,type,
    rearsegP: $i > $i > $o ).

thf(tp_sK10_SY192,type,
    sK10_SY192: $i > $i ).

thf(tp_sK11_SY235,type,
    sK11_SY235: $i ).

thf(tp_sK12_SY237,type,
    sK12_SY237: $i > $i ).

thf(tp_sK13_SY230,type,
    sK13_SY230: $i > $i > $i ).

thf(tp_sK14_SY241,type,
    sK14_SY241: $i > $i > $i ).

thf(tp_sK1_U,type,
    sK1_U: $i ).

thf(tp_sK2_SX0,type,
    sK2_SX0: $i ).

thf(tp_sK3_SX0,type,
    sK3_SX0: $i ).

thf(tp_sK4_SY206,type,
    sK4_SY206: $i ).

thf(tp_sK5_SY222,type,
    sK5_SY222: $i ).

thf(tp_sK6_SY184,type,
    sK6_SY184: $i > $i ).

thf(tp_sK7_SY159,type,
    sK7_SY159: $i > $i ).

thf(tp_sK8_SY205,type,
    sK8_SY205: $i ).

thf(tp_sK9_SY191,type,
    sK9_SY191: $i > $i ).

thf(tp_segmentP,type,
    segmentP: $i > $i > $o ).

thf(tp_singletonP,type,
    singletonP: $i > $o ).

thf(tp_ssItem,type,
    ssItem: $i > $o ).

thf(tp_ssList,type,
    ssList: $i > $o ).

thf(tp_strictorderP,type,
    strictorderP: $i > $o ).

thf(tp_strictorderedP,type,
    strictorderedP: $i > $o ).

thf(tp_tl,type,
    tl: $i > $i ).

thf(tp_totalorderP,type,
    totalorderP: $i > $o ).

thf(tp_totalorderedP,type,
    totalorderedP: $i > $o ).

thf(1,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ! [W: $i] :
              ( ( ssItem @ W )
             => ( ( ( gt @ U @ V )
                  & ( gt @ V @ W ) )
               => ( gt @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax95) ).

thf(2,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( gt @ U @ V )
           => ~ ( gt @ V @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax94) ).

thf(3,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( lt @ U @ V )
          <=> ( ( U != V )
              & ( leq @ U @ V ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax93) ).

thf(4,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( leq @ U @ V )
           => ( ( U = V )
              | ( lt @ U @ V ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax92) ).

thf(5,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ! [W: $i] :
              ( ( ssItem @ W )
             => ( ( ( leq @ U @ V )
                  & ( lt @ V @ W ) )
               => ( lt @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax91) ).

thf(6,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ~ ( lt @ U @ U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax90) ).

thf(7,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( geq @ U @ U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax89) ).

thf(8,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ! [W: $i] :
              ( ( ssItem @ W )
             => ( ( ( geq @ U @ V )
                  & ( geq @ V @ W ) )
               => ( geq @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax88) ).

thf(9,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( ( geq @ U @ V )
              & ( geq @ V @ U ) )
           => ( U = V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax87) ).

thf(12,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( app @ U @ nil )
        = U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax84) ).

thf(13,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ( ( nil
              = ( app @ U @ V ) )
          <=> ( ( nil = V )
              & ( nil = U ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax83) ).

thf(14,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( app @ ( app @ U @ V ) @ W )
                = ( app @ U @ ( app @ V @ W ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax82) ).

thf(15,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( cons @ V @ U )
            = ( app @ ( cons @ V @ nil ) @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax81) ).

thf(16,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( ( app @ V @ W )
                  = ( app @ V @ U ) )
               => ( W = U ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax80) ).

thf(17,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( ( app @ W @ V )
                  = ( app @ U @ V ) )
               => ( W = U ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax79) ).

thf(20,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( nil != U )
       => ? [V: $i] :
            ( ( ssList @ V )
            & ( ( tl @ U )
              = V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax76) ).

thf(21,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( nil != U )
       => ? [V: $i] :
            ( ( ssItem @ V )
            & ( ( hd @ U )
              = V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax75) ).

thf(22,axiom,
    equalelemsP @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax74) ).

thf(23,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( equalelemsP @ ( cons @ U @ nil ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax73) ).

thf(24,axiom,
    duplicatefreeP @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax72) ).

thf(25,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( duplicatefreeP @ ( cons @ U @ nil ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax71) ).

thf(27,axiom,
    strictorderedP @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax69) ).

thf(28,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( strictorderedP @ ( cons @ U @ nil ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax68) ).

thf(30,axiom,
    totalorderedP @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax66) ).

thf(31,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( totalorderedP @ ( cons @ U @ nil ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax65) ).

thf(32,axiom,
    strictorderP @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax64) ).

thf(33,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( strictorderP @ ( cons @ U @ nil ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax63) ).

thf(34,axiom,
    totalorderP @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax62) ).

thf(35,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( totalorderP @ ( cons @ U @ nil ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax61) ).

thf(36,axiom,
    cyclefreeP @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax60) ).

thf(37,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( cyclefreeP @ ( cons @ U @ nil ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax59) ).

thf(38,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( segmentP @ nil @ U )
      <=> ( nil = U ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax58) ).

thf(39,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( segmentP @ U @ nil ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax57) ).

thf(41,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( segmentP @ U @ U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax55) ).

thf(42,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ( ( ( segmentP @ U @ V )
              & ( segmentP @ V @ U ) )
           => ( U = V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax54) ).

thf(43,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( ( segmentP @ U @ V )
                  & ( segmentP @ V @ W ) )
               => ( segmentP @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax53) ).

thf(44,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( rearsegP @ nil @ U )
      <=> ( nil = U ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax52) ).

thf(45,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( rearsegP @ U @ nil ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax51) ).

thf(47,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( rearsegP @ U @ U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax49) ).

thf(48,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ( ( ( rearsegP @ U @ V )
              & ( rearsegP @ V @ U ) )
           => ( U = V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax48) ).

thf(49,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( ( rearsegP @ U @ V )
                  & ( rearsegP @ V @ W ) )
               => ( rearsegP @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax47) ).

thf(50,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( frontsegP @ nil @ U )
      <=> ( nil = U ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax46) ).

thf(51,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( frontsegP @ U @ nil ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax45) ).

thf(52,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ! [X: $i] :
                  ( ( ssList @ X )
                 => ( ( frontsegP @ ( cons @ U @ W ) @ ( cons @ V @ X ) )
                  <=> ( ( U = V )
                      & ( frontsegP @ W @ X ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax44) ).

thf(54,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( frontsegP @ U @ U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax42) ).

thf(55,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ( ( ( frontsegP @ U @ V )
              & ( frontsegP @ V @ U ) )
           => ( U = V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax41) ).

thf(56,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( ( frontsegP @ U @ V )
                  & ( frontsegP @ V @ W ) )
               => ( frontsegP @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax40) ).

thf(57,axiom,
    ~ ( singletonP @ nil ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax39) ).

thf(58,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ~ ( memberP @ nil @ U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax38) ).

thf(59,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( memberP @ ( cons @ V @ W ) @ U )
              <=> ( ( U = V )
                  | ( memberP @ W @ U ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax37) ).

thf(60,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ( ( memberP @ ( app @ V @ W ) @ U )
              <=> ( ( memberP @ V @ U )
                  | ( memberP @ W @ U ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax36) ).

thf(62,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ! [W: $i] :
              ( ( ssItem @ W )
             => ( ( ( lt @ U @ V )
                  & ( lt @ V @ W ) )
               => ( lt @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax34) ).

thf(63,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( lt @ U @ V )
           => ~ ( lt @ V @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax33) ).

thf(64,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( geq @ U @ V )
          <=> ( leq @ V @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax32) ).

thf(65,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ( leq @ U @ U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax31) ).

thf(66,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ! [W: $i] :
              ( ( ssItem @ W )
             => ( ( ( leq @ U @ V )
                  & ( leq @ V @ W ) )
               => ( leq @ U @ W ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax30) ).

thf(67,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( ( leq @ U @ V )
              & ( leq @ V @ U ) )
           => ( U = V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax29) ).

thf(68,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( app @ nil @ U )
        = U ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax28) ).

thf(69,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssItem @ W )
             => ( ( cons @ W @ ( app @ V @ U ) )
                = ( app @ ( cons @ W @ V ) @ U ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax27) ).

thf(70,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ( ssList @ ( app @ U @ V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax26) ).

thf(71,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( tl @ ( cons @ V @ U ) )
            = U ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax25) ).

thf(72,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( nil != U )
       => ( ssList @ ( tl @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax24) ).

thf(73,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( hd @ ( cons @ V @ U ) )
            = V ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax23) ).

thf(74,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( nil != U )
       => ( ssItem @ ( hd @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax22) ).

thf(75,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( nil
           != ( cons @ V @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax21) ).

thf(76,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( nil = U )
        | ? [V: $i] :
            ( ( ssList @ V )
            & ? [W: $i] :
                ( ( ssItem @ W )
                & ( ( cons @ W @ V )
                  = U ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax20) ).

thf(77,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssItem @ W )
             => ! [X: $i] :
                  ( ( ssItem @ X )
                 => ( ( ( cons @ W @ U )
                      = ( cons @ X @ V ) )
                   => ( ( W = X )
                      & ( V = U ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax19) ).

thf(78,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( cons @ V @ U )
           != U ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax18) ).

thf(79,axiom,
    ssList @ nil,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax17) ).

thf(80,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ssList @ ( cons @ V @ U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax16) ).

thf(81,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ( ( neq @ U @ V )
          <=> ( U != V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax15) ).

thf(92,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ( ( singletonP @ U )
      <=> ? [V: $i] :
            ( ( ssItem @ V )
            & ( ( cons @ V @ nil )
              = U ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax4) ).

thf(93,axiom,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( memberP @ U @ V )
          <=> ? [W: $i] :
                ( ( ssList @ W )
                & ? [X: $i] :
                    ( ( ssList @ X )
                    & ( ( app @ W @ ( cons @ V @ X ) )
                      = U ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax3) ).

thf(94,axiom,
    ? [U: $i] :
      ( ( ssItem @ U )
      & ? [V: $i] :
          ( ( ssItem @ V )
          & ( U != V ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax2) ).

thf(95,axiom,
    ! [U: $i] :
      ( ( ssItem @ U )
     => ! [V: $i] :
          ( ( ssItem @ V )
         => ( ( neq @ U @ V )
          <=> ( U != V ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax1) ).

thf(96,conjecture,
    ! [U: $i] :
      ( ( ssList @ U )
     => ! [V: $i] :
          ( ( ssList @ V )
         => ! [W: $i] :
              ( ( ssList @ W )
             => ! [X: $i] :
                  ( ( ssList @ X )
                 => ( ( V != X )
                    | ( U != W )
                    | ~ ( neq @ V @ nil )
                    | ( neq @ U @ nil )
                    | ( ! [Y: $i] :
                          ( ( ssItem @ Y )
                         => ( ( ( cons @ Y @ nil )
                             != W )
                            | ~ ( memberP @ X @ Y )
                            | ? [Z: $i] :
                                ( ( ssItem @ Z )
                                & ( Y != Z )
                                & ( memberP @ X @ Z )
                                & ( leq @ Y @ Z ) ) ) )
                      & ( ( nil != X )
                        | ( nil != W ) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1) ).

thf(97,negated_conjecture,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ! [X: $i] :
                      ( ( ssList @ X )
                     => ( ( V != X )
                        | ( U != W )
                        | ~ ( neq @ V @ nil )
                        | ( neq @ U @ nil )
                        | ( ! [Y: $i] :
                              ( ( ssItem @ Y )
                             => ( ( ( cons @ Y @ nil )
                                 != W )
                                | ~ ( memberP @ X @ Y )
                                | ? [Z: $i] :
                                    ( ( ssItem @ Z )
                                    & ( Y != Z )
                                    & ( memberP @ X @ Z )
                                    & ( leq @ Y @ Z ) ) ) )
                          & ( ( nil != X )
                            | ( nil != W ) ) ) ) ) ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[96]) ).

thf(98,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ! [X: $i] :
                      ( ( ssList @ X )
                     => ( ( V != X )
                        | ( U != W )
                        | ~ ( neq @ V @ nil )
                        | ( neq @ U @ nil )
                        | ( ! [Y: $i] :
                              ( ( ssItem @ Y )
                             => ( ( ( cons @ Y @ nil )
                                 != W )
                                | ~ ( memberP @ X @ Y )
                                | ? [Z: $i] :
                                    ( ( ssItem @ Z )
                                    & ( Y != Z )
                                    & ( memberP @ X @ Z )
                                    & ( leq @ Y @ Z ) ) ) )
                          & ( ( nil != X )
                            | ( nil != W ) ) ) ) ) ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[97]) ).

thf(99,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( gt @ U @ V )
                      & ( gt @ V @ W ) )
                   => ( gt @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(100,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( gt @ U @ V )
               => ~ ( gt @ V @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(101,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( lt @ U @ V )
              <=> ( ( U != V )
                  & ( leq @ U @ V ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(102,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( leq @ U @ V )
               => ( ( U = V )
                  | ( lt @ U @ V ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(103,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( leq @ U @ V )
                      & ( lt @ V @ W ) )
                   => ( lt @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(104,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ~ ( lt @ U @ U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(105,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( geq @ U @ U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(106,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( geq @ U @ V )
                      & ( geq @ V @ W ) )
                   => ( geq @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(107,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( ( geq @ U @ V )
                  & ( geq @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(108,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( app @ U @ nil )
            = U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(109,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( nil
                  = ( app @ U @ V ) )
              <=> ( ( nil = V )
                  & ( nil = U ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(110,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( app @ ( app @ U @ V ) @ W )
                    = ( app @ U @ ( app @ V @ W ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(111,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( cons @ V @ U )
                = ( app @ ( cons @ V @ nil ) @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(112,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( app @ V @ W )
                      = ( app @ V @ U ) )
                   => ( W = U ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(113,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( app @ W @ V )
                      = ( app @ U @ V ) )
                   => ( W = U ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(114,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ? [V: $i] :
                ( ( ssList @ V )
                & ( ( tl @ U )
                  = V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(115,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ? [V: $i] :
                ( ( ssItem @ V )
                & ( ( hd @ U )
                  = V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[21]) ).

thf(116,plain,
    ( ( equalelemsP @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[22]) ).

thf(117,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( equalelemsP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[23]) ).

thf(118,plain,
    ( ( duplicatefreeP @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(119,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( duplicatefreeP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(120,plain,
    ( ( strictorderedP @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[27]) ).

thf(121,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( strictorderedP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[28]) ).

thf(122,plain,
    ( ( totalorderedP @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(123,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( totalorderedP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(124,plain,
    ( ( strictorderP @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(125,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( strictorderP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(126,plain,
    ( ( totalorderP @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(127,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( totalorderP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(128,plain,
    ( ( cyclefreeP @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(129,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( cyclefreeP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(130,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( segmentP @ nil @ U )
          <=> ( nil = U ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(131,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( segmentP @ U @ nil ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(132,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( segmentP @ U @ U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(133,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( ( segmentP @ U @ V )
                  & ( segmentP @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(134,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( segmentP @ U @ V )
                      & ( segmentP @ V @ W ) )
                   => ( segmentP @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(135,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( rearsegP @ nil @ U )
          <=> ( nil = U ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[44]) ).

thf(136,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( rearsegP @ U @ nil ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(137,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( rearsegP @ U @ U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(138,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( ( rearsegP @ U @ V )
                  & ( rearsegP @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(139,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( rearsegP @ U @ V )
                      & ( rearsegP @ V @ W ) )
                   => ( rearsegP @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(140,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( frontsegP @ nil @ U )
          <=> ( nil = U ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(141,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( frontsegP @ U @ nil ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(142,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ! [X: $i] :
                      ( ( ssList @ X )
                     => ( ( frontsegP @ ( cons @ U @ W ) @ ( cons @ V @ X ) )
                      <=> ( ( U = V )
                          & ( frontsegP @ W @ X ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(143,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( frontsegP @ U @ U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(144,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( ( frontsegP @ U @ V )
                  & ( frontsegP @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(145,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( frontsegP @ U @ V )
                      & ( frontsegP @ V @ W ) )
                   => ( frontsegP @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(146,plain,
    ( ( ~ ( singletonP @ nil ) )
    = $true ),
    inference(unfold_def,[status(thm)],[57]) ).

thf(147,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ~ ( memberP @ nil @ U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[58]) ).

thf(148,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( memberP @ ( cons @ V @ W ) @ U )
                  <=> ( ( U = V )
                      | ( memberP @ W @ U ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[59]) ).

thf(149,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( memberP @ ( app @ V @ W ) @ U )
                  <=> ( ( memberP @ V @ U )
                      | ( memberP @ W @ U ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[60]) ).

thf(150,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( lt @ U @ V )
                      & ( lt @ V @ W ) )
                   => ( lt @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(151,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( lt @ U @ V )
               => ~ ( lt @ V @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[63]) ).

thf(152,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( geq @ U @ V )
              <=> ( leq @ V @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(153,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( leq @ U @ U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(154,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( leq @ U @ V )
                      & ( leq @ V @ W ) )
                   => ( leq @ U @ W ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(155,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( ( leq @ U @ V )
                  & ( leq @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[67]) ).

thf(156,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( app @ nil @ U )
            = U ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(157,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( cons @ W @ ( app @ V @ U ) )
                    = ( app @ ( cons @ W @ V ) @ U ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(158,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ssList @ ( app @ U @ V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(159,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( tl @ ( cons @ V @ U ) )
                = U ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(160,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ( ssList @ ( tl @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(161,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( hd @ ( cons @ V @ U ) )
                = V ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(162,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ( ssItem @ ( hd @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(163,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( nil
               != ( cons @ V @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(164,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil = U )
            | ? [V: $i] :
                ( ( ssList @ V )
                & ? [W: $i] :
                    ( ( ssItem @ W )
                    & ( ( cons @ W @ V )
                      = U ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(165,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ! [X: $i] :
                      ( ( ssItem @ X )
                     => ( ( ( cons @ W @ U )
                          = ( cons @ X @ V ) )
                       => ( ( W = X )
                          & ( V = U ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[77]) ).

thf(166,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( cons @ V @ U )
               != U ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(167,plain,
    ( ( ssList @ nil )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(168,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ssList @ ( cons @ V @ U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(169,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( neq @ U @ V )
              <=> ( U != V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[81]) ).

thf(170,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( singletonP @ U )
          <=> ? [V: $i] :
                ( ( ssItem @ V )
                & ( ( cons @ V @ nil )
                  = U ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(171,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( memberP @ U @ V )
              <=> ? [W: $i] :
                    ( ( ssList @ W )
                    & ? [X: $i] :
                        ( ( ssList @ X )
                        & ( ( app @ W @ ( cons @ V @ X ) )
                          = U ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[93]) ).

thf(172,plain,
    ( ( ? [U: $i] :
          ( ( ssItem @ U )
          & ? [V: $i] :
              ( ( ssItem @ V )
              & ( U != V ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[94]) ).

thf(173,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( neq @ U @ V )
              <=> ( U != V ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[95]) ).

thf(174,plain,
    ( ( ( ssList @ sK1_U )
     => ! [SY135: $i] :
          ( ( ssList @ SY135 )
         => ! [SY136: $i] :
              ( ( ssList @ SY136 )
             => ! [SY137: $i] :
                  ( ( ssList @ SY137 )
                 => ( ( SY135 != SY137 )
                    | ( sK1_U != SY136 )
                    | ~ ( neq @ SY135 @ nil )
                    | ( neq @ sK1_U @ nil )
                    | ( ! [Y: $i] :
                          ( ( ssItem @ Y )
                         => ( ( ( cons @ Y @ nil )
                             != SY136 )
                            | ~ ( memberP @ SY137 @ Y )
                            | ? [Z: $i] :
                                ( ( ssItem @ Z )
                                & ( Y != Z )
                                & ( memberP @ SY137 @ Z )
                                & ( leq @ Y @ Z ) ) ) )
                      & ( ( nil != SY137 )
                        | ( nil != SY136 ) ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[98]) ).

thf(175,plain,
    ( ( ssList @ sK1_U )
    = $true ),
    inference(standard_cnf,[status(thm)],[174]) ).

thf(176,plain,
    ( ( ! [SY135: $i] :
          ( ( ssList @ SY135 )
         => ! [SY136: $i] :
              ( ( ssList @ SY136 )
             => ! [SY137: $i] :
                  ( ( ssList @ SY137 )
                 => ( ( SY135 != SY137 )
                    | ( sK1_U != SY136 )
                    | ~ ( neq @ SY135 @ nil )
                    | ( neq @ sK1_U @ nil )
                    | ( ! [Y: $i] :
                          ( ( ssItem @ Y )
                         => ( ( ( cons @ Y @ nil )
                             != SY136 )
                            | ~ ( memberP @ SY137 @ Y )
                            | ? [Z: $i] :
                                ( ( ssItem @ Z )
                                & ( Y != Z )
                                & ( memberP @ SY137 @ Z )
                                & ( leq @ Y @ Z ) ) ) )
                      & ( ( nil != SY137 )
                        | ( nil != SY136 ) ) ) ) ) ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[174]) ).

thf(177,plain,
    ( ( ~ ! [SY135: $i] :
            ( ( ssList @ SY135 )
           => ! [SY136: $i] :
                ( ( ssList @ SY136 )
               => ! [SY137: $i] :
                    ( ( ssList @ SY137 )
                   => ( ( SY135 != SY137 )
                      | ( sK1_U != SY136 )
                      | ~ ( neq @ SY135 @ nil )
                      | ( neq @ sK1_U @ nil )
                      | ( ! [Y: $i] :
                            ( ( ssItem @ Y )
                           => ( ( ( cons @ Y @ nil )
                               != SY136 )
                              | ~ ( memberP @ SY137 @ Y )
                              | ? [Z: $i] :
                                  ( ( ssItem @ Z )
                                  & ( Y != Z )
                                  & ( memberP @ SY137 @ Z )
                                  & ( leq @ Y @ Z ) ) ) )
                        & ( ( nil != SY137 )
                          | ( nil != SY136 ) ) ) ) ) ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[176]) ).

thf(178,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( neq @ U @ V )
              <=> ( U != V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(179,plain,
    ( ( ? [U: $i] :
          ( ( ssItem @ U )
          & ? [V: $i] :
              ( ( ssItem @ V )
              & ( U != V ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[172]) ).

thf(180,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( memberP @ U @ V )
              <=> ? [W: $i] :
                    ( ( ssList @ W )
                    & ? [X: $i] :
                        ( ( ssList @ X )
                        & ( ( app @ W @ ( cons @ V @ X ) )
                          = U ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(181,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( singletonP @ U )
          <=> ? [V: $i] :
                ( ( ssItem @ V )
                & ( ( cons @ V @ nil )
                  = U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(182,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( neq @ U @ V )
              <=> ( U != V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[169]) ).

thf(183,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ssList @ ( cons @ V @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[168]) ).

thf(184,plain,
    ( ( ssList @ nil )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(185,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( cons @ V @ U )
               != U ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[166]) ).

thf(186,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ! [X: $i] :
                      ( ( ssItem @ X )
                     => ( ( ( cons @ W @ U )
                          = ( cons @ X @ V ) )
                       => ( ( W = X )
                          & ( V = U ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(187,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil = U )
            | ? [V: $i] :
                ( ( ssList @ V )
                & ? [W: $i] :
                    ( ( ssItem @ W )
                    & ( ( cons @ W @ V )
                      = U ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(188,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( nil
               != ( cons @ V @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[163]) ).

thf(189,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ( ssItem @ ( hd @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(190,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( hd @ ( cons @ V @ U ) )
                = V ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[161]) ).

thf(191,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ( ssList @ ( tl @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[160]) ).

thf(192,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( tl @ ( cons @ V @ U ) )
                = U ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[159]) ).

thf(193,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ssList @ ( app @ U @ V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[158]) ).

thf(194,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( cons @ W @ ( app @ V @ U ) )
                    = ( app @ ( cons @ W @ V ) @ U ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[157]) ).

thf(195,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( app @ nil @ U )
            = U ) ) )
    = $true ),
    inference(copy,[status(thm)],[156]) ).

thf(196,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( ( leq @ U @ V )
                  & ( leq @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[155]) ).

thf(197,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( leq @ U @ V )
                      & ( leq @ V @ W ) )
                   => ( leq @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[154]) ).

thf(198,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( leq @ U @ U ) ) )
    = $true ),
    inference(copy,[status(thm)],[153]) ).

thf(199,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( geq @ U @ V )
              <=> ( leq @ V @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(200,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( lt @ U @ V )
               => ~ ( lt @ V @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[151]) ).

thf(201,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( lt @ U @ V )
                      & ( lt @ V @ W ) )
                   => ( lt @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[150]) ).

thf(202,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( memberP @ ( app @ V @ W ) @ U )
                  <=> ( ( memberP @ V @ U )
                      | ( memberP @ W @ U ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[149]) ).

thf(203,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( memberP @ ( cons @ V @ W ) @ U )
                  <=> ( ( U = V )
                      | ( memberP @ W @ U ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(204,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ~ ( memberP @ nil @ U ) ) )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(205,plain,
    ( ( ~ ( singletonP @ nil ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(206,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( frontsegP @ U @ V )
                      & ( frontsegP @ V @ W ) )
                   => ( frontsegP @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[145]) ).

thf(207,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( ( frontsegP @ U @ V )
                  & ( frontsegP @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[144]) ).

thf(208,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( frontsegP @ U @ U ) ) )
    = $true ),
    inference(copy,[status(thm)],[143]) ).

thf(209,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ! [X: $i] :
                      ( ( ssList @ X )
                     => ( ( frontsegP @ ( cons @ U @ W ) @ ( cons @ V @ X ) )
                      <=> ( ( U = V )
                          & ( frontsegP @ W @ X ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(210,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( frontsegP @ U @ nil ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(211,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( frontsegP @ nil @ U )
          <=> ( nil = U ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[140]) ).

thf(212,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( rearsegP @ U @ V )
                      & ( rearsegP @ V @ W ) )
                   => ( rearsegP @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[139]) ).

thf(213,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( ( rearsegP @ U @ V )
                  & ( rearsegP @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[138]) ).

thf(214,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( rearsegP @ U @ U ) ) )
    = $true ),
    inference(copy,[status(thm)],[137]) ).

thf(215,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( rearsegP @ U @ nil ) ) )
    = $true ),
    inference(copy,[status(thm)],[136]) ).

thf(216,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( rearsegP @ nil @ U )
          <=> ( nil = U ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[135]) ).

thf(217,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( segmentP @ U @ V )
                      & ( segmentP @ V @ W ) )
                   => ( segmentP @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[134]) ).

thf(218,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( ( segmentP @ U @ V )
                  & ( segmentP @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[133]) ).

thf(219,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( segmentP @ U @ U ) ) )
    = $true ),
    inference(copy,[status(thm)],[132]) ).

thf(220,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( segmentP @ U @ nil ) ) )
    = $true ),
    inference(copy,[status(thm)],[131]) ).

thf(221,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( segmentP @ nil @ U )
          <=> ( nil = U ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[130]) ).

thf(222,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( cyclefreeP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[129]) ).

thf(223,plain,
    ( ( cyclefreeP @ nil )
    = $true ),
    inference(copy,[status(thm)],[128]) ).

thf(224,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( totalorderP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[127]) ).

thf(225,plain,
    ( ( totalorderP @ nil )
    = $true ),
    inference(copy,[status(thm)],[126]) ).

thf(226,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( strictorderP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[125]) ).

thf(227,plain,
    ( ( strictorderP @ nil )
    = $true ),
    inference(copy,[status(thm)],[124]) ).

thf(228,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( totalorderedP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[123]) ).

thf(229,plain,
    ( ( totalorderedP @ nil )
    = $true ),
    inference(copy,[status(thm)],[122]) ).

thf(230,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( strictorderedP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[121]) ).

thf(231,plain,
    ( ( strictorderedP @ nil )
    = $true ),
    inference(copy,[status(thm)],[120]) ).

thf(232,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( duplicatefreeP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[119]) ).

thf(233,plain,
    ( ( duplicatefreeP @ nil )
    = $true ),
    inference(copy,[status(thm)],[118]) ).

thf(234,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( equalelemsP @ ( cons @ U @ nil ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[117]) ).

thf(235,plain,
    ( ( equalelemsP @ nil )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(236,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ? [V: $i] :
                ( ( ssItem @ V )
                & ( ( hd @ U )
                  = V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[115]) ).

thf(237,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( nil != U )
           => ? [V: $i] :
                ( ( ssList @ V )
                & ( ( tl @ U )
                  = V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[114]) ).

thf(238,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( app @ W @ V )
                      = ( app @ U @ V ) )
                   => ( W = U ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[113]) ).

thf(239,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( ( app @ V @ W )
                      = ( app @ V @ U ) )
                   => ( W = U ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[112]) ).

thf(240,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( cons @ V @ U )
                = ( app @ ( cons @ V @ nil ) @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[111]) ).

thf(241,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ! [W: $i] :
                  ( ( ssList @ W )
                 => ( ( app @ ( app @ U @ V ) @ W )
                    = ( app @ U @ ( app @ V @ W ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[110]) ).

thf(242,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ! [V: $i] :
              ( ( ssList @ V )
             => ( ( nil
                  = ( app @ U @ V ) )
              <=> ( ( nil = V )
                  & ( nil = U ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[109]) ).

thf(243,plain,
    ( ( ! [U: $i] :
          ( ( ssList @ U )
         => ( ( app @ U @ nil )
            = U ) ) )
    = $true ),
    inference(copy,[status(thm)],[108]) ).

thf(244,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( ( geq @ U @ V )
                  & ( geq @ V @ U ) )
               => ( U = V ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[107]) ).

thf(245,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( geq @ U @ V )
                      & ( geq @ V @ W ) )
                   => ( geq @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[106]) ).

thf(246,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ( geq @ U @ U ) ) )
    = $true ),
    inference(copy,[status(thm)],[105]) ).

thf(247,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ~ ( lt @ U @ U ) ) )
    = $true ),
    inference(copy,[status(thm)],[104]) ).

thf(248,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( leq @ U @ V )
                      & ( lt @ V @ W ) )
                   => ( lt @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[103]) ).

thf(249,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( leq @ U @ V )
               => ( ( U = V )
                  | ( lt @ U @ V ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[102]) ).

thf(250,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( lt @ U @ V )
              <=> ( ( U != V )
                  & ( leq @ U @ V ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[101]) ).

thf(251,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ( ( gt @ U @ V )
               => ~ ( gt @ V @ U ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[100]) ).

thf(252,plain,
    ( ( ! [U: $i] :
          ( ( ssItem @ U )
         => ! [V: $i] :
              ( ( ssItem @ V )
             => ! [W: $i] :
                  ( ( ssItem @ W )
                 => ( ( ( gt @ U @ V )
                      & ( gt @ V @ W ) )
                   => ( gt @ U @ W ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[99]) ).

thf(253,plain,
    ( ( ssList @ sK1_U )
    = $true ),
    inference(copy,[status(thm)],[175]) ).

thf(254,plain,
    ( ( ~ ! [SY135: $i] :
            ( ( ssList @ SY135 )
           => ! [SY136: $i] :
                ( ( ssList @ SY136 )
               => ! [SY137: $i] :
                    ( ( ssList @ SY137 )
                   => ( ( SY135 != SY137 )
                      | ( sK1_U != SY136 )
                      | ~ ( neq @ SY135 @ nil )
                      | ( neq @ sK1_U @ nil )
                      | ( ! [Y: $i] :
                            ( ( ssItem @ Y )
                           => ( ( ( cons @ Y @ nil )
                               != SY136 )
                              | ~ ( memberP @ SY137 @ Y )
                              | ? [Z: $i] :
                                  ( ( ssItem @ Z )
                                  & ( Y != Z )
                                  & ( memberP @ SY137 @ Z )
                                  & ( leq @ Y @ Z ) ) ) )
                        & ( ( nil != SY137 )
                          | ( nil != SY136 ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[177]) ).

thf(255,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ( ( app @ SX2 @ SX1 )
                   != ( app @ SX0 @ SX1 ) )
                  | ( SX2 = SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[238]) ).

thf(256,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( duplicatefreeP @ ( cons @ SX0 @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[232]) ).

thf(257,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( leq @ SX0 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[198]) ).

thf(258,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssItem @ SX2 )
                  | ~ ~ ( ~ ( leq @ SX0 @ SX1 )
                        | ~ ( lt @ SX1 @ SX2 ) )
                  | ( lt @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[248]) ).

thf(259,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssItem @ SX2 )
                  | ~ ~ ( ~ ( gt @ SX0 @ SX1 )
                        | ~ ( gt @ SX1 @ SX2 ) )
                  | ( gt @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[252]) ).

thf(260,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( strictorderedP @ ( cons @ SX0 @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[230]) ).

thf(261,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ~ ~ ( ~ ( segmentP @ SX0 @ SX1 )
                    | ~ ( segmentP @ SX1 @ SX0 ) )
              | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[218]) ).

thf(262,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ( nil != SX0 ) )
          | ( ssList @ ( tl @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[191]) ).

thf(263,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ( ( cons @ SX1 @ SX0 )
                = ( app @ ( cons @ SX1 @ nil ) @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[240]) ).

thf(264,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( equalelemsP @ ( cons @ SX0 @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[234]) ).

thf(265,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ( ~ ( ~ ( neq @ SX0 @ SX1 )
                      | ( SX0 != SX1 ) )
                  | ~ ( ~ ( ( SX0 != SX1 ) )
                      | ( neq @ SX0 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[178]) ).

thf(266,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ~ ( ~ ( leq @ SX0 @ SX1 )
                    | ~ ( leq @ SX1 @ SX0 ) )
              | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[196]) ).

thf(267,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ( ssList @ ( app @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[193]) ).

thf(268,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( frontsegP @ SX0 @ nil ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[210]) ).

thf(269,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ( leq @ SX0 @ SX1 )
              | ( SX0 = SX1 )
              | ( lt @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[249]) ).

thf(270,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( segmentP @ SX0 @ nil ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[220]) ).

thf(271,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ~ ( ~ ( ~ ( memberP @ ( app @ SX1 @ SX2 ) @ SX0 )
                          | ( memberP @ SX1 @ SX0 )
                          | ( memberP @ SX2 @ SX0 ) )
                      | ~ ( ~ ( ( memberP @ SX1 @ SX0 )
                              | ( memberP @ SX2 @ SX0 ) )
                          | ( memberP @ ( app @ SX1 @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[202]) ).

thf(272,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( rearsegP @ SX0 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[214]) ).

thf(273,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssItem @ SX2 )
                  | ~ ~ ( ~ ( geq @ SX0 @ SX1 )
                        | ~ ( geq @ SX1 @ SX2 ) )
                  | ( geq @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[245]) ).

thf(274,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssItem @ SX2 )
                  | ~ ~ ( ~ ( leq @ SX0 @ SX1 )
                        | ~ ( leq @ SX1 @ SX2 ) )
                  | ( leq @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[197]) ).

thf(275,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ( ( hd @ ( cons @ SX1 @ SX0 ) )
                = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[190]) ).

thf(276,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ( nil != SX0 ) )
          | ~ ! [SX1: $i] :
                ~ ~ ( ~ ( ssItem @ SX1 )
                    | ( ( hd @ SX0 )
                     != SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[236]) ).

thf(277,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ~ ( ~ ( ~ ( memberP @ ( cons @ SX1 @ SX2 ) @ SX0 )
                          | ( SX0 = SX1 )
                          | ( memberP @ SX2 @ SX0 ) )
                      | ~ ( ~ ( ( SX0 = SX1 )
                              | ( memberP @ SX2 @ SX0 ) )
                          | ( memberP @ ( cons @ SX1 @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[203]) ).

thf(278,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssItem @ SX2 )
                  | ~ ~ ( ~ ( lt @ SX0 @ SX1 )
                        | ~ ( lt @ SX1 @ SX2 ) )
                  | ( lt @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[201]) ).

thf(279,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ! [SX3: $i] :
                      ( ~ ( ssList @ SX3 )
                      | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SX0 @ SX2 ) @ ( cons @ SX1 @ SX3 ) )
                              | ~ ( ( SX0 != SX1 )
                                  | ~ ( frontsegP @ SX2 @ SX3 ) ) )
                          | ~ ( ~ ~ ( ( SX0 != SX1 )
                                    | ~ ( frontsegP @ SX2 @ SX3 ) )
                              | ( frontsegP @ ( cons @ SX0 @ SX2 ) @ ( cons @ SX1 @ SX3 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[209]) ).

thf(280,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ~ ~ ( ~ ( segmentP @ SX0 @ SX1 )
                        | ~ ( segmentP @ SX1 @ SX2 ) )
                  | ( segmentP @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[217]) ).

thf(281,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ~ ~ ( ~ ( frontsegP @ SX0 @ SX1 )
                        | ~ ( frontsegP @ SX1 @ SX2 ) )
                  | ( frontsegP @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[206]) ).

thf(282,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ( ( cons @ SX1 @ SX0 )
               != SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[185]) ).

thf(283,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ( ~ ( ~ ( lt @ SX0 @ SX1 )
                      | ~ ( ~ ( ( SX0 != SX1 ) )
                          | ~ ( leq @ SX0 @ SX1 ) ) )
                  | ~ ( ~ ~ ( ~ ( ( SX0 != SX1 ) )
                            | ~ ( leq @ SX0 @ SX1 ) )
                      | ( lt @ SX0 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[250]) ).

thf(284,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ( lt @ SX0 @ SX1 )
              | ~ ( lt @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[200]) ).

thf(285,plain,
    ( ( ~ ! [SX0: $i] :
            ~ ~ ( ~ ( ssItem @ SX0 )
                | ~ ~ ! [SX1: $i] :
                        ~ ~ ( ~ ( ssItem @ SX1 )
                            | ~ ( ( SX0 != SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[179]) ).

thf(286,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ~ ~ ( ~ ( frontsegP @ SX0 @ SX1 )
                    | ~ ( frontsegP @ SX1 @ SX0 ) )
              | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[207]) ).

thf(287,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ssList @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( ssList @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( ssList @ SX2 )
                    | ( SX0 != SX2 )
                    | ( sK1_U != SX1 )
                    | ~ ( neq @ SX0 @ nil )
                    | ( neq @ sK1_U @ nil )
                    | ~ ( ~ ! [SX3: $i] :
                              ( ~ ( ssItem @ SX3 )
                              | ( ( cons @ SX3 @ nil )
                               != SX1 )
                              | ~ ( memberP @ SX2 @ SX3 )
                              | ~ ! [SX4: $i] :
                                    ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SX4 )
                                                    | ~ ( ( SX3 != SX4 ) ) )
                                              | ~ ( memberP @ SX2 @ SX4 ) )
                                        | ~ ( leq @ SX3 @ SX4 ) ) )
                        | ~ ( ( nil != SX2 )
                            | ( nil != SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[254]) ).

thf(288,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( totalorderP @ ( cons @ SX0 @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[224]) ).

thf(289,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( cyclefreeP @ ( cons @ SX0 @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[222]) ).

thf(290,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( rearsegP @ SX0 @ nil ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[215]) ).

thf(291,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ( gt @ SX0 @ SX1 )
              | ~ ( gt @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[251]) ).

thf(292,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ( ( app @ ( app @ SX0 @ SX1 ) @ SX2 )
                    = ( app @ SX0 @ ( app @ SX1 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[241]) ).

thf(293,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ( ssList @ ( cons @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[183]) ).

thf(294,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ~ ~ ( ~ ( rearsegP @ SX0 @ SX1 )
                        | ~ ( rearsegP @ SX1 @ SX2 ) )
                  | ( rearsegP @ SX0 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[212]) ).

thf(295,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssItem @ SX2 )
                  | ( ( cons @ SX2 @ ( app @ SX1 @ SX0 ) )
                    = ( app @ ( cons @ SX2 @ SX1 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[194]) ).

thf(296,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( ( app @ SX0 @ nil )
            = SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[243]) ).

thf(297,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ~ ( ~ ( geq @ SX0 @ SX1 )
                    | ~ ( geq @ SX1 @ SX0 ) )
              | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[244]) ).

thf(298,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( nil = SX0 )
          | ~ ! [SX1: $i] :
                ~ ~ ( ~ ( ssList @ SX1 )
                    | ~ ~ ! [SX2: $i] :
                            ~ ~ ( ~ ( ssItem @ SX2 )
                                | ( ( cons @ SX2 @ SX1 )
                                 != SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[187]) ).

thf(299,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( frontsegP @ SX0 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[208]) ).

thf(300,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ( ~ ( ~ ( geq @ SX0 @ SX1 )
                      | ( leq @ SX1 @ SX0 ) )
                  | ~ ( ~ ( leq @ SX1 @ SX0 )
                      | ( geq @ SX0 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[199]) ).

thf(301,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( strictorderP @ ( cons @ SX0 @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[226]) ).

thf(302,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( totalorderedP @ ( cons @ SX0 @ nil ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[228]) ).

thf(303,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ~ ( ~ ( frontsegP @ nil @ SX0 )
                  | ( nil = SX0 ) )
              | ~ ( ( nil != SX0 )
                  | ( frontsegP @ nil @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[211]) ).

thf(304,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ( ( tl @ ( cons @ SX1 @ SX0 ) )
                = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[192]) ).

thf(305,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssItem @ SX2 )
                  | ! [SX3: $i] :
                      ( ~ ( ssItem @ SX3 )
                      | ( ( cons @ SX2 @ SX0 )
                       != ( cons @ SX3 @ SX1 ) )
                      | ~ ( ( SX2 != SX3 )
                          | ( SX1 != SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[186]) ).

thf(306,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ~ ( lt @ SX0 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[247]) ).

thf(307,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ( nil != SX0 ) )
          | ~ ! [SX1: $i] :
                ~ ~ ( ~ ( ssList @ SX1 )
                    | ( ( tl @ SX0 )
                     != SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[237]) ).

thf(308,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ~ ( ~ ( singletonP @ SX0 )
                  | ~ ! [SX1: $i] :
                        ~ ~ ( ~ ( ssItem @ SX1 )
                            | ( ( cons @ SX1 @ nil )
                             != SX0 ) ) )
              | ~ ( ~ ~ ! [SX1: $i] :
                          ~ ~ ( ~ ( ssItem @ SX1 )
                              | ( ( cons @ SX1 @ nil )
                               != SX0 ) )
                  | ( singletonP @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[181]) ).

thf(309,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ~ ~ ( ~ ( rearsegP @ SX0 @ SX1 )
                    | ~ ( rearsegP @ SX1 @ SX0 ) )
              | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[213]) ).

thf(310,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ~ ( ~ ( ( nil
                       != ( app @ SX0 @ SX1 ) )
                      | ~ ( ( nil != SX1 )
                          | ( nil != SX0 ) ) )
                  | ~ ( ~ ~ ( ( nil != SX1 )
                            | ( nil != SX0 ) )
                      | ( nil
                        = ( app @ SX0 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[242]) ).

thf(311,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( ( app @ nil @ SX0 )
            = SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[195]) ).

thf(312,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ( geq @ SX0 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[246]) ).

thf(313,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssItem @ SX0 )
          | ~ ( memberP @ nil @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[204]) ).

thf(314,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ~ ( ~ ( rearsegP @ nil @ SX0 )
                  | ( nil = SX0 ) )
              | ~ ( ( nil != SX0 )
                  | ( rearsegP @ nil @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[216]) ).

thf(315,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ~ ( ~ ( ~ ( memberP @ SX0 @ SX1 )
                      | ~ ! [SX2: $i] :
                            ~ ~ ( ~ ( ssList @ SX2 )
                                | ~ ~ ! [SX3: $i] :
                                        ~ ~ ( ~ ( ssList @ SX3 )
                                            | ( ( app @ SX2 @ ( cons @ SX1 @ SX3 ) )
                                             != SX0 ) ) ) )
                  | ~ ( ~ ~ ! [SX2: $i] :
                              ~ ~ ( ~ ( ssList @ SX2 )
                                  | ~ ~ ! [SX3: $i] :
                                          ~ ~ ( ~ ( ssList @ SX3 )
                                              | ( ( app @ SX2 @ ( cons @ SX1 @ SX3 ) )
                                               != SX0 ) ) )
                      | ( memberP @ SX0 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[180]) ).

thf(316,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ~ ( ~ ( segmentP @ nil @ SX0 )
                  | ( nil = SX0 ) )
              | ~ ( ( nil != SX0 )
                  | ( segmentP @ nil @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[221]) ).

thf(317,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ~ ( ( nil != SX0 ) )
          | ( ssItem @ ( hd @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[189]) ).

thf(318,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ( segmentP @ SX0 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[219]) ).

thf(319,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssItem @ SX1 )
              | ( nil
               != ( cons @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[188]) ).

thf(320,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ~ ( ~ ( ~ ( neq @ SX0 @ SX1 )
                      | ( SX0 != SX1 ) )
                  | ~ ( ~ ( ( SX0 != SX1 ) )
                      | ( neq @ SX0 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[182]) ).

thf(321,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ( ( app @ SX1 @ SX2 )
                   != ( app @ SX1 @ SX0 ) )
                  | ( SX2 = SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[239]) ).

thf(322,plain,
    ( ( singletonP @ nil )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[205]) ).

thf(323,plain,
    ! [SV1: $i] :
      ( ( ~ ( ssList @ SV1 )
        | ! [SY140: $i] :
            ( ~ ( ssList @ SY140 )
            | ! [SY141: $i] :
                ( ~ ( ssList @ SY141 )
                | ( ( app @ SY141 @ SY140 )
                 != ( app @ SV1 @ SY140 ) )
                | ( SY141 = SV1 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[255]) ).

thf(324,plain,
    ! [SV2: $i] :
      ( ( ~ ( ssItem @ SV2 )
        | ( duplicatefreeP @ ( cons @ SV2 @ nil ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[256]) ).

thf(325,plain,
    ! [SV3: $i] :
      ( ( ~ ( ssItem @ SV3 )
        | ( leq @ SV3 @ SV3 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[257]) ).

thf(326,plain,
    ! [SV4: $i] :
      ( ( ~ ( ssItem @ SV4 )
        | ! [SY142: $i] :
            ( ~ ( ssItem @ SY142 )
            | ! [SY143: $i] :
                ( ~ ( ssItem @ SY143 )
                | ~ ~ ( ~ ( leq @ SV4 @ SY142 )
                      | ~ ( lt @ SY142 @ SY143 ) )
                | ( lt @ SV4 @ SY143 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[258]) ).

thf(327,plain,
    ! [SV5: $i] :
      ( ( ~ ( ssItem @ SV5 )
        | ! [SY144: $i] :
            ( ~ ( ssItem @ SY144 )
            | ! [SY145: $i] :
                ( ~ ( ssItem @ SY145 )
                | ~ ~ ( ~ ( gt @ SV5 @ SY144 )
                      | ~ ( gt @ SY144 @ SY145 ) )
                | ( gt @ SV5 @ SY145 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[259]) ).

thf(328,plain,
    ! [SV6: $i] :
      ( ( ~ ( ssItem @ SV6 )
        | ( strictorderedP @ ( cons @ SV6 @ nil ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[260]) ).

thf(329,plain,
    ! [SV7: $i] :
      ( ( ~ ( ssList @ SV7 )
        | ! [SY146: $i] :
            ( ~ ( ssList @ SY146 )
            | ~ ~ ( ~ ( segmentP @ SV7 @ SY146 )
                  | ~ ( segmentP @ SY146 @ SV7 ) )
            | ( SV7 = SY146 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[261]) ).

thf(330,plain,
    ! [SV8: $i] :
      ( ( ~ ( ssList @ SV8 )
        | ~ ( ( nil != SV8 ) )
        | ( ssList @ ( tl @ SV8 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[262]) ).

thf(331,plain,
    ! [SV9: $i] :
      ( ( ~ ( ssList @ SV9 )
        | ! [SY147: $i] :
            ( ~ ( ssItem @ SY147 )
            | ( ( cons @ SY147 @ SV9 )
              = ( app @ ( cons @ SY147 @ nil ) @ SV9 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[263]) ).

thf(332,plain,
    ! [SV10: $i] :
      ( ( ~ ( ssItem @ SV10 )
        | ( equalelemsP @ ( cons @ SV10 @ nil ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[264]) ).

thf(333,plain,
    ! [SV11: $i] :
      ( ( ~ ( ssItem @ SV11 )
        | ! [SY148: $i] :
            ( ~ ( ssItem @ SY148 )
            | ~ ( ~ ( ~ ( neq @ SV11 @ SY148 )
                    | ( SV11 != SY148 ) )
                | ~ ( ~ ( ( SV11 != SY148 ) )
                    | ( neq @ SV11 @ SY148 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[265]) ).

thf(334,plain,
    ! [SV12: $i] :
      ( ( ~ ( ssItem @ SV12 )
        | ! [SY149: $i] :
            ( ~ ( ssItem @ SY149 )
            | ~ ~ ( ~ ( leq @ SV12 @ SY149 )
                  | ~ ( leq @ SY149 @ SV12 ) )
            | ( SV12 = SY149 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[266]) ).

thf(335,plain,
    ! [SV13: $i] :
      ( ( ~ ( ssList @ SV13 )
        | ! [SY150: $i] :
            ( ~ ( ssList @ SY150 )
            | ( ssList @ ( app @ SV13 @ SY150 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(336,plain,
    ! [SV14: $i] :
      ( ( ~ ( ssList @ SV14 )
        | ( frontsegP @ SV14 @ nil ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[268]) ).

thf(337,plain,
    ! [SV15: $i] :
      ( ( ~ ( ssItem @ SV15 )
        | ! [SY151: $i] :
            ( ~ ( ssItem @ SY151 )
            | ~ ( leq @ SV15 @ SY151 )
            | ( SV15 = SY151 )
            | ( lt @ SV15 @ SY151 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[269]) ).

thf(338,plain,
    ! [SV16: $i] :
      ( ( ~ ( ssList @ SV16 )
        | ( segmentP @ SV16 @ nil ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[270]) ).

thf(339,plain,
    ! [SV17: $i] :
      ( ( ~ ( ssItem @ SV17 )
        | ! [SY152: $i] :
            ( ~ ( ssList @ SY152 )
            | ! [SY153: $i] :
                ( ~ ( ssList @ SY153 )
                | ~ ( ~ ( ~ ( memberP @ ( app @ SY152 @ SY153 ) @ SV17 )
                        | ( memberP @ SY152 @ SV17 )
                        | ( memberP @ SY153 @ SV17 ) )
                    | ~ ( ~ ( ( memberP @ SY152 @ SV17 )
                            | ( memberP @ SY153 @ SV17 ) )
                        | ( memberP @ ( app @ SY152 @ SY153 ) @ SV17 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[271]) ).

thf(340,plain,
    ! [SV18: $i] :
      ( ( ~ ( ssList @ SV18 )
        | ( rearsegP @ SV18 @ SV18 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(341,plain,
    ! [SV19: $i] :
      ( ( ~ ( ssItem @ SV19 )
        | ! [SY154: $i] :
            ( ~ ( ssItem @ SY154 )
            | ! [SY155: $i] :
                ( ~ ( ssItem @ SY155 )
                | ~ ~ ( ~ ( geq @ SV19 @ SY154 )
                      | ~ ( geq @ SY154 @ SY155 ) )
                | ( geq @ SV19 @ SY155 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[273]) ).

thf(342,plain,
    ! [SV20: $i] :
      ( ( ~ ( ssItem @ SV20 )
        | ! [SY156: $i] :
            ( ~ ( ssItem @ SY156 )
            | ! [SY157: $i] :
                ( ~ ( ssItem @ SY157 )
                | ~ ~ ( ~ ( leq @ SV20 @ SY156 )
                      | ~ ( leq @ SY156 @ SY157 ) )
                | ( leq @ SV20 @ SY157 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[274]) ).

thf(343,plain,
    ! [SV21: $i] :
      ( ( ~ ( ssList @ SV21 )
        | ! [SY158: $i] :
            ( ~ ( ssItem @ SY158 )
            | ( ( hd @ ( cons @ SY158 @ SV21 ) )
              = SY158 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[275]) ).

thf(344,plain,
    ! [SV22: $i] :
      ( ( ~ ( ssList @ SV22 )
        | ~ ( ( nil != SV22 ) )
        | ~ ! [SY159: $i] :
              ~ ~ ( ~ ( ssItem @ SY159 )
                  | ( ( hd @ SV22 )
                   != SY159 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[276]) ).

thf(345,plain,
    ! [SV23: $i] :
      ( ( ~ ( ssItem @ SV23 )
        | ! [SY160: $i] :
            ( ~ ( ssItem @ SY160 )
            | ! [SY161: $i] :
                ( ~ ( ssList @ SY161 )
                | ~ ( ~ ( ~ ( memberP @ ( cons @ SY160 @ SY161 ) @ SV23 )
                        | ( SV23 = SY160 )
                        | ( memberP @ SY161 @ SV23 ) )
                    | ~ ( ~ ( ( SV23 = SY160 )
                            | ( memberP @ SY161 @ SV23 ) )
                        | ( memberP @ ( cons @ SY160 @ SY161 ) @ SV23 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[277]) ).

thf(346,plain,
    ! [SV24: $i] :
      ( ( ~ ( ssItem @ SV24 )
        | ! [SY162: $i] :
            ( ~ ( ssItem @ SY162 )
            | ! [SY163: $i] :
                ( ~ ( ssItem @ SY163 )
                | ~ ~ ( ~ ( lt @ SV24 @ SY162 )
                      | ~ ( lt @ SY162 @ SY163 ) )
                | ( lt @ SV24 @ SY163 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[278]) ).

thf(347,plain,
    ! [SV25: $i] :
      ( ( ~ ( ssItem @ SV25 )
        | ! [SY164: $i] :
            ( ~ ( ssItem @ SY164 )
            | ! [SY165: $i] :
                ( ~ ( ssList @ SY165 )
                | ! [SY166: $i] :
                    ( ~ ( ssList @ SY166 )
                    | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SY165 ) @ ( cons @ SY164 @ SY166 ) )
                            | ~ ( ( SV25 != SY164 )
                                | ~ ( frontsegP @ SY165 @ SY166 ) ) )
                        | ~ ( ~ ~ ( ( SV25 != SY164 )
                                  | ~ ( frontsegP @ SY165 @ SY166 ) )
                            | ( frontsegP @ ( cons @ SV25 @ SY165 ) @ ( cons @ SY164 @ SY166 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[279]) ).

thf(348,plain,
    ! [SV26: $i] :
      ( ( ~ ( ssList @ SV26 )
        | ! [SY167: $i] :
            ( ~ ( ssList @ SY167 )
            | ! [SY168: $i] :
                ( ~ ( ssList @ SY168 )
                | ~ ~ ( ~ ( segmentP @ SV26 @ SY167 )
                      | ~ ( segmentP @ SY167 @ SY168 ) )
                | ( segmentP @ SV26 @ SY168 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[280]) ).

thf(349,plain,
    ! [SV27: $i] :
      ( ( ~ ( ssList @ SV27 )
        | ! [SY169: $i] :
            ( ~ ( ssList @ SY169 )
            | ! [SY170: $i] :
                ( ~ ( ssList @ SY170 )
                | ~ ~ ( ~ ( frontsegP @ SV27 @ SY169 )
                      | ~ ( frontsegP @ SY169 @ SY170 ) )
                | ( frontsegP @ SV27 @ SY170 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[281]) ).

thf(350,plain,
    ! [SV28: $i] :
      ( ( ~ ( ssList @ SV28 )
        | ! [SY171: $i] :
            ( ~ ( ssItem @ SY171 )
            | ( ( cons @ SY171 @ SV28 )
             != SV28 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[282]) ).

thf(351,plain,
    ! [SV29: $i] :
      ( ( ~ ( ssItem @ SV29 )
        | ! [SY172: $i] :
            ( ~ ( ssItem @ SY172 )
            | ~ ( ~ ( ~ ( lt @ SV29 @ SY172 )
                    | ~ ( ~ ( ( SV29 != SY172 ) )
                        | ~ ( leq @ SV29 @ SY172 ) ) )
                | ~ ( ~ ~ ( ~ ( ( SV29 != SY172 ) )
                          | ~ ( leq @ SV29 @ SY172 ) )
                    | ( lt @ SV29 @ SY172 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[283]) ).

thf(352,plain,
    ! [SV30: $i] :
      ( ( ~ ( ssItem @ SV30 )
        | ! [SY173: $i] :
            ( ~ ( ssItem @ SY173 )
            | ~ ( lt @ SV30 @ SY173 )
            | ~ ( lt @ SY173 @ SV30 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[284]) ).

thf(353,plain,
    ( ( ! [SX0: $i] :
          ~ ~ ( ~ ( ssItem @ SX0 )
              | ~ ~ ! [SX1: $i] :
                      ~ ~ ( ~ ( ssItem @ SX1 )
                          | ~ ( ( SX0 != SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[285]) ).

thf(354,plain,
    ! [SV31: $i] :
      ( ( ~ ( ssList @ SV31 )
        | ! [SY174: $i] :
            ( ~ ( ssList @ SY174 )
            | ~ ~ ( ~ ( frontsegP @ SV31 @ SY174 )
                  | ~ ( frontsegP @ SY174 @ SV31 ) )
            | ( SV31 = SY174 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[286]) ).

thf(355,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ssList @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( ssList @ SX1 )
              | ! [SX2: $i] :
                  ( ~ ( ssList @ SX2 )
                  | ( SX0 != SX2 )
                  | ( sK1_U != SX1 )
                  | ~ ( neq @ SX0 @ nil )
                  | ( neq @ sK1_U @ nil )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( ssItem @ SX3 )
                            | ( ( cons @ SX3 @ nil )
                             != SX1 )
                            | ~ ( memberP @ SX2 @ SX3 )
                            | ~ ! [SX4: $i] :
                                  ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SX4 )
                                                  | ~ ( ( SX3 != SX4 ) ) )
                                            | ~ ( memberP @ SX2 @ SX4 ) )
                                      | ~ ( leq @ SX3 @ SX4 ) ) )
                      | ~ ( ( nil != SX2 )
                          | ( nil != SX1 ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[287]) ).

thf(356,plain,
    ! [SV32: $i] :
      ( ( ~ ( ssItem @ SV32 )
        | ( totalorderP @ ( cons @ SV32 @ nil ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[288]) ).

thf(357,plain,
    ! [SV33: $i] :
      ( ( ~ ( ssItem @ SV33 )
        | ( cyclefreeP @ ( cons @ SV33 @ nil ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[289]) ).

thf(358,plain,
    ! [SV34: $i] :
      ( ( ~ ( ssList @ SV34 )
        | ( rearsegP @ SV34 @ nil ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[290]) ).

thf(359,plain,
    ! [SV35: $i] :
      ( ( ~ ( ssItem @ SV35 )
        | ! [SY175: $i] :
            ( ~ ( ssItem @ SY175 )
            | ~ ( gt @ SV35 @ SY175 )
            | ~ ( gt @ SY175 @ SV35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[291]) ).

thf(360,plain,
    ! [SV36: $i] :
      ( ( ~ ( ssList @ SV36 )
        | ! [SY176: $i] :
            ( ~ ( ssList @ SY176 )
            | ! [SY177: $i] :
                ( ~ ( ssList @ SY177 )
                | ( ( app @ ( app @ SV36 @ SY176 ) @ SY177 )
                  = ( app @ SV36 @ ( app @ SY176 @ SY177 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[292]) ).

thf(361,plain,
    ! [SV37: $i] :
      ( ( ~ ( ssList @ SV37 )
        | ! [SY178: $i] :
            ( ~ ( ssItem @ SY178 )
            | ( ssList @ ( cons @ SY178 @ SV37 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[293]) ).

thf(362,plain,
    ! [SV38: $i] :
      ( ( ~ ( ssList @ SV38 )
        | ! [SY179: $i] :
            ( ~ ( ssList @ SY179 )
            | ! [SY180: $i] :
                ( ~ ( ssList @ SY180 )
                | ~ ~ ( ~ ( rearsegP @ SV38 @ SY179 )
                      | ~ ( rearsegP @ SY179 @ SY180 ) )
                | ( rearsegP @ SV38 @ SY180 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[294]) ).

thf(363,plain,
    ! [SV39: $i] :
      ( ( ~ ( ssList @ SV39 )
        | ! [SY181: $i] :
            ( ~ ( ssList @ SY181 )
            | ! [SY182: $i] :
                ( ~ ( ssItem @ SY182 )
                | ( ( cons @ SY182 @ ( app @ SY181 @ SV39 ) )
                  = ( app @ ( cons @ SY182 @ SY181 ) @ SV39 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[295]) ).

thf(364,plain,
    ! [SV40: $i] :
      ( ( ~ ( ssList @ SV40 )
        | ( ( app @ SV40 @ nil )
          = SV40 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[296]) ).

thf(365,plain,
    ! [SV41: $i] :
      ( ( ~ ( ssItem @ SV41 )
        | ! [SY183: $i] :
            ( ~ ( ssItem @ SY183 )
            | ~ ~ ( ~ ( geq @ SV41 @ SY183 )
                  | ~ ( geq @ SY183 @ SV41 ) )
            | ( SV41 = SY183 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[297]) ).

thf(366,plain,
    ! [SV42: $i] :
      ( ( ~ ( ssList @ SV42 )
        | ( nil = SV42 )
        | ~ ! [SY184: $i] :
              ~ ~ ( ~ ( ssList @ SY184 )
                  | ~ ~ ! [SY185: $i] :
                          ~ ~ ( ~ ( ssItem @ SY185 )
                              | ( ( cons @ SY185 @ SY184 )
                               != SV42 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[298]) ).

thf(367,plain,
    ! [SV43: $i] :
      ( ( ~ ( ssList @ SV43 )
        | ( frontsegP @ SV43 @ SV43 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[299]) ).

thf(368,plain,
    ! [SV44: $i] :
      ( ( ~ ( ssItem @ SV44 )
        | ! [SY186: $i] :
            ( ~ ( ssItem @ SY186 )
            | ~ ( ~ ( ~ ( geq @ SV44 @ SY186 )
                    | ( leq @ SY186 @ SV44 ) )
                | ~ ( ~ ( leq @ SY186 @ SV44 )
                    | ( geq @ SV44 @ SY186 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[300]) ).

thf(369,plain,
    ! [SV45: $i] :
      ( ( ~ ( ssItem @ SV45 )
        | ( strictorderP @ ( cons @ SV45 @ nil ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[301]) ).

thf(370,plain,
    ! [SV46: $i] :
      ( ( ~ ( ssItem @ SV46 )
        | ( totalorderedP @ ( cons @ SV46 @ nil ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[302]) ).

thf(371,plain,
    ! [SV47: $i] :
      ( ( ~ ( ssList @ SV47 )
        | ~ ( ~ ( ~ ( frontsegP @ nil @ SV47 )
                | ( nil = SV47 ) )
            | ~ ( ( nil != SV47 )
                | ( frontsegP @ nil @ SV47 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[303]) ).

thf(372,plain,
    ! [SV48: $i] :
      ( ( ~ ( ssList @ SV48 )
        | ! [SY187: $i] :
            ( ~ ( ssItem @ SY187 )
            | ( ( tl @ ( cons @ SY187 @ SV48 ) )
              = SV48 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[304]) ).

thf(373,plain,
    ! [SV49: $i] :
      ( ( ~ ( ssList @ SV49 )
        | ! [SY188: $i] :
            ( ~ ( ssList @ SY188 )
            | ! [SY189: $i] :
                ( ~ ( ssItem @ SY189 )
                | ! [SY190: $i] :
                    ( ~ ( ssItem @ SY190 )
                    | ( ( cons @ SY189 @ SV49 )
                     != ( cons @ SY190 @ SY188 ) )
                    | ~ ( ( SY189 != SY190 )
                        | ( SY188 != SV49 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[305]) ).

thf(374,plain,
    ! [SV50: $i] :
      ( ( ~ ( ssItem @ SV50 )
        | ~ ( lt @ SV50 @ SV50 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[306]) ).

thf(375,plain,
    ! [SV51: $i] :
      ( ( ~ ( ssList @ SV51 )
        | ~ ( ( nil != SV51 ) )
        | ~ ! [SY191: $i] :
              ~ ~ ( ~ ( ssList @ SY191 )
                  | ( ( tl @ SV51 )
                   != SY191 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[307]) ).

thf(376,plain,
    ! [SV52: $i] :
      ( ( ~ ( ssList @ SV52 )
        | ~ ( ~ ( ~ ( singletonP @ SV52 )
                | ~ ! [SY192: $i] :
                      ~ ~ ( ~ ( ssItem @ SY192 )
                          | ( ( cons @ SY192 @ nil )
                           != SV52 ) ) )
            | ~ ( ~ ~ ! [SY193: $i] :
                        ~ ~ ( ~ ( ssItem @ SY193 )
                            | ( ( cons @ SY193 @ nil )
                             != SV52 ) )
                | ( singletonP @ SV52 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[308]) ).

thf(377,plain,
    ! [SV53: $i] :
      ( ( ~ ( ssList @ SV53 )
        | ! [SY194: $i] :
            ( ~ ( ssList @ SY194 )
            | ~ ~ ( ~ ( rearsegP @ SV53 @ SY194 )
                  | ~ ( rearsegP @ SY194 @ SV53 ) )
            | ( SV53 = SY194 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[309]) ).

thf(378,plain,
    ! [SV54: $i] :
      ( ( ~ ( ssList @ SV54 )
        | ! [SY195: $i] :
            ( ~ ( ssList @ SY195 )
            | ~ ( ~ ( ( nil
                     != ( app @ SV54 @ SY195 ) )
                    | ~ ( ( nil != SY195 )
                        | ( nil != SV54 ) ) )
                | ~ ( ~ ~ ( ( nil != SY195 )
                          | ( nil != SV54 ) )
                    | ( nil
                      = ( app @ SV54 @ SY195 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[310]) ).

thf(379,plain,
    ! [SV55: $i] :
      ( ( ~ ( ssList @ SV55 )
        | ( ( app @ nil @ SV55 )
          = SV55 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[311]) ).

thf(380,plain,
    ! [SV56: $i] :
      ( ( ~ ( ssItem @ SV56 )
        | ( geq @ SV56 @ SV56 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[312]) ).

thf(381,plain,
    ! [SV57: $i] :
      ( ( ~ ( ssItem @ SV57 )
        | ~ ( memberP @ nil @ SV57 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[313]) ).

thf(382,plain,
    ! [SV58: $i] :
      ( ( ~ ( ssList @ SV58 )
        | ~ ( ~ ( ~ ( rearsegP @ nil @ SV58 )
                | ( nil = SV58 ) )
            | ~ ( ( nil != SV58 )
                | ( rearsegP @ nil @ SV58 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[314]) ).

thf(383,plain,
    ! [SV59: $i] :
      ( ( ~ ( ssList @ SV59 )
        | ! [SY196: $i] :
            ( ~ ( ssItem @ SY196 )
            | ~ ( ~ ( ~ ( memberP @ SV59 @ SY196 )
                    | ~ ! [SY197: $i] :
                          ~ ~ ( ~ ( ssList @ SY197 )
                              | ~ ~ ! [SY198: $i] :
                                      ~ ~ ( ~ ( ssList @ SY198 )
                                          | ( ( app @ SY197 @ ( cons @ SY196 @ SY198 ) )
                                           != SV59 ) ) ) )
                | ~ ( ~ ~ ! [SY199: $i] :
                            ~ ~ ( ~ ( ssList @ SY199 )
                                | ~ ~ ! [SY200: $i] :
                                        ~ ~ ( ~ ( ssList @ SY200 )
                                            | ( ( app @ SY199 @ ( cons @ SY196 @ SY200 ) )
                                             != SV59 ) ) )
                    | ( memberP @ SV59 @ SY196 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[315]) ).

thf(384,plain,
    ! [SV60: $i] :
      ( ( ~ ( ssList @ SV60 )
        | ~ ( ~ ( ~ ( segmentP @ nil @ SV60 )
                | ( nil = SV60 ) )
            | ~ ( ( nil != SV60 )
                | ( segmentP @ nil @ SV60 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[316]) ).

thf(385,plain,
    ! [SV61: $i] :
      ( ( ~ ( ssList @ SV61 )
        | ~ ( ( nil != SV61 ) )
        | ( ssItem @ ( hd @ SV61 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[317]) ).

thf(386,plain,
    ! [SV62: $i] :
      ( ( ~ ( ssList @ SV62 )
        | ( segmentP @ SV62 @ SV62 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[318]) ).

thf(387,plain,
    ! [SV63: $i] :
      ( ( ~ ( ssList @ SV63 )
        | ! [SY201: $i] :
            ( ~ ( ssItem @ SY201 )
            | ( nil
             != ( cons @ SY201 @ SV63 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[319]) ).

thf(388,plain,
    ! [SV64: $i] :
      ( ( ~ ( ssList @ SV64 )
        | ! [SY202: $i] :
            ( ~ ( ssList @ SY202 )
            | ~ ( ~ ( ~ ( neq @ SV64 @ SY202 )
                    | ( SV64 != SY202 ) )
                | ~ ( ~ ( ( SV64 != SY202 ) )
                    | ( neq @ SV64 @ SY202 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[320]) ).

thf(389,plain,
    ! [SV65: $i] :
      ( ( ~ ( ssList @ SV65 )
        | ! [SY203: $i] :
            ( ~ ( ssList @ SY203 )
            | ! [SY204: $i] :
                ( ~ ( ssList @ SY204 )
                | ( ( app @ SY203 @ SY204 )
                 != ( app @ SY203 @ SV65 ) )
                | ( SY204 = SV65 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[321]) ).

thf(390,plain,
    ! [SV1: $i] :
      ( ( ( ~ ( ssList @ SV1 ) )
        = $true )
      | ( ( ! [SY140: $i] :
              ( ~ ( ssList @ SY140 )
              | ! [SY141: $i] :
                  ( ~ ( ssList @ SY141 )
                  | ( ( app @ SY141 @ SY140 )
                   != ( app @ SV1 @ SY140 ) )
                  | ( SY141 = SV1 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[323]) ).

thf(391,plain,
    ! [SV2: $i] :
      ( ( ( ~ ( ssItem @ SV2 ) )
        = $true )
      | ( ( duplicatefreeP @ ( cons @ SV2 @ nil ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[324]) ).

thf(392,plain,
    ! [SV3: $i] :
      ( ( ( ~ ( ssItem @ SV3 ) )
        = $true )
      | ( ( leq @ SV3 @ SV3 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[325]) ).

thf(393,plain,
    ! [SV4: $i] :
      ( ( ( ~ ( ssItem @ SV4 ) )
        = $true )
      | ( ( ! [SY142: $i] :
              ( ~ ( ssItem @ SY142 )
              | ! [SY143: $i] :
                  ( ~ ( ssItem @ SY143 )
                  | ~ ~ ( ~ ( leq @ SV4 @ SY142 )
                        | ~ ( lt @ SY142 @ SY143 ) )
                  | ( lt @ SV4 @ SY143 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[326]) ).

thf(394,plain,
    ! [SV5: $i] :
      ( ( ( ~ ( ssItem @ SV5 ) )
        = $true )
      | ( ( ! [SY144: $i] :
              ( ~ ( ssItem @ SY144 )
              | ! [SY145: $i] :
                  ( ~ ( ssItem @ SY145 )
                  | ~ ~ ( ~ ( gt @ SV5 @ SY144 )
                        | ~ ( gt @ SY144 @ SY145 ) )
                  | ( gt @ SV5 @ SY145 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[327]) ).

thf(395,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( ssItem @ SV6 ) )
        = $true )
      | ( ( strictorderedP @ ( cons @ SV6 @ nil ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[328]) ).

thf(396,plain,
    ! [SV7: $i] :
      ( ( ( ~ ( ssList @ SV7 ) )
        = $true )
      | ( ( ! [SY146: $i] :
              ( ~ ( ssList @ SY146 )
              | ~ ~ ( ~ ( segmentP @ SV7 @ SY146 )
                    | ~ ( segmentP @ SY146 @ SV7 ) )
              | ( SV7 = SY146 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[329]) ).

thf(397,plain,
    ! [SV8: $i] :
      ( ( ( ~ ( ssList @ SV8 ) )
        = $true )
      | ( ( ~ ( ( nil != SV8 ) )
          | ( ssList @ ( tl @ SV8 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[330]) ).

thf(398,plain,
    ! [SV9: $i] :
      ( ( ( ~ ( ssList @ SV9 ) )
        = $true )
      | ( ( ! [SY147: $i] :
              ( ~ ( ssItem @ SY147 )
              | ( ( cons @ SY147 @ SV9 )
                = ( app @ ( cons @ SY147 @ nil ) @ SV9 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[331]) ).

thf(399,plain,
    ! [SV10: $i] :
      ( ( ( ~ ( ssItem @ SV10 ) )
        = $true )
      | ( ( equalelemsP @ ( cons @ SV10 @ nil ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[332]) ).

thf(400,plain,
    ! [SV11: $i] :
      ( ( ( ~ ( ssItem @ SV11 ) )
        = $true )
      | ( ( ! [SY148: $i] :
              ( ~ ( ssItem @ SY148 )
              | ~ ( ~ ( ~ ( neq @ SV11 @ SY148 )
                      | ( SV11 != SY148 ) )
                  | ~ ( ~ ( ( SV11 != SY148 ) )
                      | ( neq @ SV11 @ SY148 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[333]) ).

thf(401,plain,
    ! [SV12: $i] :
      ( ( ( ~ ( ssItem @ SV12 ) )
        = $true )
      | ( ( ! [SY149: $i] :
              ( ~ ( ssItem @ SY149 )
              | ~ ~ ( ~ ( leq @ SV12 @ SY149 )
                    | ~ ( leq @ SY149 @ SV12 ) )
              | ( SV12 = SY149 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[334]) ).

thf(402,plain,
    ! [SV13: $i] :
      ( ( ( ~ ( ssList @ SV13 ) )
        = $true )
      | ( ( ! [SY150: $i] :
              ( ~ ( ssList @ SY150 )
              | ( ssList @ ( app @ SV13 @ SY150 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[335]) ).

thf(403,plain,
    ! [SV14: $i] :
      ( ( ( ~ ( ssList @ SV14 ) )
        = $true )
      | ( ( frontsegP @ SV14 @ nil )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[336]) ).

thf(404,plain,
    ! [SV15: $i] :
      ( ( ( ~ ( ssItem @ SV15 ) )
        = $true )
      | ( ( ! [SY151: $i] :
              ( ~ ( ssItem @ SY151 )
              | ~ ( leq @ SV15 @ SY151 )
              | ( SV15 = SY151 )
              | ( lt @ SV15 @ SY151 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[337]) ).

thf(405,plain,
    ! [SV16: $i] :
      ( ( ( ~ ( ssList @ SV16 ) )
        = $true )
      | ( ( segmentP @ SV16 @ nil )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[338]) ).

thf(406,plain,
    ! [SV17: $i] :
      ( ( ( ~ ( ssItem @ SV17 ) )
        = $true )
      | ( ( ! [SY152: $i] :
              ( ~ ( ssList @ SY152 )
              | ! [SY153: $i] :
                  ( ~ ( ssList @ SY153 )
                  | ~ ( ~ ( ~ ( memberP @ ( app @ SY152 @ SY153 ) @ SV17 )
                          | ( memberP @ SY152 @ SV17 )
                          | ( memberP @ SY153 @ SV17 ) )
                      | ~ ( ~ ( ( memberP @ SY152 @ SV17 )
                              | ( memberP @ SY153 @ SV17 ) )
                          | ( memberP @ ( app @ SY152 @ SY153 ) @ SV17 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[339]) ).

thf(407,plain,
    ! [SV18: $i] :
      ( ( ( ~ ( ssList @ SV18 ) )
        = $true )
      | ( ( rearsegP @ SV18 @ SV18 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[340]) ).

thf(408,plain,
    ! [SV19: $i] :
      ( ( ( ~ ( ssItem @ SV19 ) )
        = $true )
      | ( ( ! [SY154: $i] :
              ( ~ ( ssItem @ SY154 )
              | ! [SY155: $i] :
                  ( ~ ( ssItem @ SY155 )
                  | ~ ~ ( ~ ( geq @ SV19 @ SY154 )
                        | ~ ( geq @ SY154 @ SY155 ) )
                  | ( geq @ SV19 @ SY155 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[341]) ).

thf(409,plain,
    ! [SV20: $i] :
      ( ( ( ~ ( ssItem @ SV20 ) )
        = $true )
      | ( ( ! [SY156: $i] :
              ( ~ ( ssItem @ SY156 )
              | ! [SY157: $i] :
                  ( ~ ( ssItem @ SY157 )
                  | ~ ~ ( ~ ( leq @ SV20 @ SY156 )
                        | ~ ( leq @ SY156 @ SY157 ) )
                  | ( leq @ SV20 @ SY157 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[342]) ).

thf(410,plain,
    ! [SV21: $i] :
      ( ( ( ~ ( ssList @ SV21 ) )
        = $true )
      | ( ( ! [SY158: $i] :
              ( ~ ( ssItem @ SY158 )
              | ( ( hd @ ( cons @ SY158 @ SV21 ) )
                = SY158 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[343]) ).

thf(411,plain,
    ! [SV22: $i] :
      ( ( ( ~ ( ssList @ SV22 ) )
        = $true )
      | ( ( ~ ( ( nil != SV22 ) )
          | ~ ! [SY159: $i] :
                ~ ~ ( ~ ( ssItem @ SY159 )
                    | ( ( hd @ SV22 )
                     != SY159 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[344]) ).

thf(412,plain,
    ! [SV23: $i] :
      ( ( ( ~ ( ssItem @ SV23 ) )
        = $true )
      | ( ( ! [SY160: $i] :
              ( ~ ( ssItem @ SY160 )
              | ! [SY161: $i] :
                  ( ~ ( ssList @ SY161 )
                  | ~ ( ~ ( ~ ( memberP @ ( cons @ SY160 @ SY161 ) @ SV23 )
                          | ( SV23 = SY160 )
                          | ( memberP @ SY161 @ SV23 ) )
                      | ~ ( ~ ( ( SV23 = SY160 )
                              | ( memberP @ SY161 @ SV23 ) )
                          | ( memberP @ ( cons @ SY160 @ SY161 ) @ SV23 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[345]) ).

thf(413,plain,
    ! [SV24: $i] :
      ( ( ( ~ ( ssItem @ SV24 ) )
        = $true )
      | ( ( ! [SY162: $i] :
              ( ~ ( ssItem @ SY162 )
              | ! [SY163: $i] :
                  ( ~ ( ssItem @ SY163 )
                  | ~ ~ ( ~ ( lt @ SV24 @ SY162 )
                        | ~ ( lt @ SY162 @ SY163 ) )
                  | ( lt @ SV24 @ SY163 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[346]) ).

thf(414,plain,
    ! [SV25: $i] :
      ( ( ( ~ ( ssItem @ SV25 ) )
        = $true )
      | ( ( ! [SY164: $i] :
              ( ~ ( ssItem @ SY164 )
              | ! [SY165: $i] :
                  ( ~ ( ssList @ SY165 )
                  | ! [SY166: $i] :
                      ( ~ ( ssList @ SY166 )
                      | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SY165 ) @ ( cons @ SY164 @ SY166 ) )
                              | ~ ( ( SV25 != SY164 )
                                  | ~ ( frontsegP @ SY165 @ SY166 ) ) )
                          | ~ ( ~ ~ ( ( SV25 != SY164 )
                                    | ~ ( frontsegP @ SY165 @ SY166 ) )
                              | ( frontsegP @ ( cons @ SV25 @ SY165 ) @ ( cons @ SY164 @ SY166 ) ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[347]) ).

thf(415,plain,
    ! [SV26: $i] :
      ( ( ( ~ ( ssList @ SV26 ) )
        = $true )
      | ( ( ! [SY167: $i] :
              ( ~ ( ssList @ SY167 )
              | ! [SY168: $i] :
                  ( ~ ( ssList @ SY168 )
                  | ~ ~ ( ~ ( segmentP @ SV26 @ SY167 )
                        | ~ ( segmentP @ SY167 @ SY168 ) )
                  | ( segmentP @ SV26 @ SY168 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[348]) ).

thf(416,plain,
    ! [SV27: $i] :
      ( ( ( ~ ( ssList @ SV27 ) )
        = $true )
      | ( ( ! [SY169: $i] :
              ( ~ ( ssList @ SY169 )
              | ! [SY170: $i] :
                  ( ~ ( ssList @ SY170 )
                  | ~ ~ ( ~ ( frontsegP @ SV27 @ SY169 )
                        | ~ ( frontsegP @ SY169 @ SY170 ) )
                  | ( frontsegP @ SV27 @ SY170 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[349]) ).

thf(417,plain,
    ! [SV28: $i] :
      ( ( ( ~ ( ssList @ SV28 ) )
        = $true )
      | ( ( ! [SY171: $i] :
              ( ~ ( ssItem @ SY171 )
              | ( ( cons @ SY171 @ SV28 )
               != SV28 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[350]) ).

thf(418,plain,
    ! [SV29: $i] :
      ( ( ( ~ ( ssItem @ SV29 ) )
        = $true )
      | ( ( ! [SY172: $i] :
              ( ~ ( ssItem @ SY172 )
              | ~ ( ~ ( ~ ( lt @ SV29 @ SY172 )
                      | ~ ( ~ ( ( SV29 != SY172 ) )
                          | ~ ( leq @ SV29 @ SY172 ) ) )
                  | ~ ( ~ ~ ( ~ ( ( SV29 != SY172 ) )
                            | ~ ( leq @ SV29 @ SY172 ) )
                      | ( lt @ SV29 @ SY172 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[351]) ).

thf(419,plain,
    ! [SV30: $i] :
      ( ( ( ~ ( ssItem @ SV30 ) )
        = $true )
      | ( ( ! [SY173: $i] :
              ( ~ ( ssItem @ SY173 )
              | ~ ( lt @ SV30 @ SY173 )
              | ~ ( lt @ SY173 @ SV30 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[352]) ).

thf(420,plain,
    ( ( ~ ~ ( ~ ( ssItem @ sK2_SX0 )
            | ~ ~ ! [SY205: $i] :
                    ~ ~ ( ~ ( ssItem @ SY205 )
                        | ~ ( ( sK2_SX0 != SY205 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[353]) ).

thf(421,plain,
    ! [SV31: $i] :
      ( ( ( ~ ( ssList @ SV31 ) )
        = $true )
      | ( ( ! [SY174: $i] :
              ( ~ ( ssList @ SY174 )
              | ~ ~ ( ~ ( frontsegP @ SV31 @ SY174 )
                    | ~ ( frontsegP @ SY174 @ SV31 ) )
              | ( SV31 = SY174 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[354]) ).

thf(422,plain,
    ( ( ~ ( ssList @ sK3_SX0 )
      | ! [SY206: $i] :
          ( ~ ( ssList @ SY206 )
          | ! [SY207: $i] :
              ( ~ ( ssList @ SY207 )
              | ( sK3_SX0 != SY207 )
              | ( sK1_U != SY206 )
              | ~ ( neq @ sK3_SX0 @ nil )
              | ( neq @ sK1_U @ nil )
              | ~ ( ~ ! [SX3: $i] :
                        ( ~ ( ssItem @ SX3 )
                        | ( ( cons @ SX3 @ nil )
                         != SY206 )
                        | ~ ( memberP @ SY207 @ SX3 )
                        | ~ ! [SX4: $i] :
                              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SX4 )
                                              | ~ ( ( SX3 != SX4 ) ) )
                                        | ~ ( memberP @ SY207 @ SX4 ) )
                                  | ~ ( leq @ SX3 @ SX4 ) ) )
                  | ~ ( ( nil != SY207 )
                      | ( nil != SY206 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[355]) ).

thf(423,plain,
    ! [SV32: $i] :
      ( ( ( ~ ( ssItem @ SV32 ) )
        = $true )
      | ( ( totalorderP @ ( cons @ SV32 @ nil ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[356]) ).

thf(424,plain,
    ! [SV33: $i] :
      ( ( ( ~ ( ssItem @ SV33 ) )
        = $true )
      | ( ( cyclefreeP @ ( cons @ SV33 @ nil ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[357]) ).

thf(425,plain,
    ! [SV34: $i] :
      ( ( ( ~ ( ssList @ SV34 ) )
        = $true )
      | ( ( rearsegP @ SV34 @ nil )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[358]) ).

thf(426,plain,
    ! [SV35: $i] :
      ( ( ( ~ ( ssItem @ SV35 ) )
        = $true )
      | ( ( ! [SY175: $i] :
              ( ~ ( ssItem @ SY175 )
              | ~ ( gt @ SV35 @ SY175 )
              | ~ ( gt @ SY175 @ SV35 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[359]) ).

thf(427,plain,
    ! [SV36: $i] :
      ( ( ( ~ ( ssList @ SV36 ) )
        = $true )
      | ( ( ! [SY176: $i] :
              ( ~ ( ssList @ SY176 )
              | ! [SY177: $i] :
                  ( ~ ( ssList @ SY177 )
                  | ( ( app @ ( app @ SV36 @ SY176 ) @ SY177 )
                    = ( app @ SV36 @ ( app @ SY176 @ SY177 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[360]) ).

thf(428,plain,
    ! [SV37: $i] :
      ( ( ( ~ ( ssList @ SV37 ) )
        = $true )
      | ( ( ! [SY178: $i] :
              ( ~ ( ssItem @ SY178 )
              | ( ssList @ ( cons @ SY178 @ SV37 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[361]) ).

thf(429,plain,
    ! [SV38: $i] :
      ( ( ( ~ ( ssList @ SV38 ) )
        = $true )
      | ( ( ! [SY179: $i] :
              ( ~ ( ssList @ SY179 )
              | ! [SY180: $i] :
                  ( ~ ( ssList @ SY180 )
                  | ~ ~ ( ~ ( rearsegP @ SV38 @ SY179 )
                        | ~ ( rearsegP @ SY179 @ SY180 ) )
                  | ( rearsegP @ SV38 @ SY180 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[362]) ).

thf(430,plain,
    ! [SV39: $i] :
      ( ( ( ~ ( ssList @ SV39 ) )
        = $true )
      | ( ( ! [SY181: $i] :
              ( ~ ( ssList @ SY181 )
              | ! [SY182: $i] :
                  ( ~ ( ssItem @ SY182 )
                  | ( ( cons @ SY182 @ ( app @ SY181 @ SV39 ) )
                    = ( app @ ( cons @ SY182 @ SY181 ) @ SV39 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[363]) ).

thf(431,plain,
    ! [SV40: $i] :
      ( ( ( ~ ( ssList @ SV40 ) )
        = $true )
      | ( ( ( app @ SV40 @ nil )
          = SV40 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[364]) ).

thf(432,plain,
    ! [SV41: $i] :
      ( ( ( ~ ( ssItem @ SV41 ) )
        = $true )
      | ( ( ! [SY183: $i] :
              ( ~ ( ssItem @ SY183 )
              | ~ ~ ( ~ ( geq @ SV41 @ SY183 )
                    | ~ ( geq @ SY183 @ SV41 ) )
              | ( SV41 = SY183 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[365]) ).

thf(433,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( ssList @ SV42 ) )
        = $true )
      | ( ( ( nil = SV42 )
          | ~ ! [SY184: $i] :
                ~ ~ ( ~ ( ssList @ SY184 )
                    | ~ ~ ! [SY185: $i] :
                            ~ ~ ( ~ ( ssItem @ SY185 )
                                | ( ( cons @ SY185 @ SY184 )
                                 != SV42 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[366]) ).

thf(434,plain,
    ! [SV43: $i] :
      ( ( ( ~ ( ssList @ SV43 ) )
        = $true )
      | ( ( frontsegP @ SV43 @ SV43 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[367]) ).

thf(435,plain,
    ! [SV44: $i] :
      ( ( ( ~ ( ssItem @ SV44 ) )
        = $true )
      | ( ( ! [SY186: $i] :
              ( ~ ( ssItem @ SY186 )
              | ~ ( ~ ( ~ ( geq @ SV44 @ SY186 )
                      | ( leq @ SY186 @ SV44 ) )
                  | ~ ( ~ ( leq @ SY186 @ SV44 )
                      | ( geq @ SV44 @ SY186 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[368]) ).

thf(436,plain,
    ! [SV45: $i] :
      ( ( ( ~ ( ssItem @ SV45 ) )
        = $true )
      | ( ( strictorderP @ ( cons @ SV45 @ nil ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[369]) ).

thf(437,plain,
    ! [SV46: $i] :
      ( ( ( ~ ( ssItem @ SV46 ) )
        = $true )
      | ( ( totalorderedP @ ( cons @ SV46 @ nil ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[370]) ).

thf(438,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( ssList @ SV47 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( frontsegP @ nil @ SV47 )
                  | ( nil = SV47 ) )
              | ~ ( ( nil != SV47 )
                  | ( frontsegP @ nil @ SV47 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[371]) ).

thf(439,plain,
    ! [SV48: $i] :
      ( ( ( ~ ( ssList @ SV48 ) )
        = $true )
      | ( ( ! [SY187: $i] :
              ( ~ ( ssItem @ SY187 )
              | ( ( tl @ ( cons @ SY187 @ SV48 ) )
                = SV48 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[372]) ).

thf(440,plain,
    ! [SV49: $i] :
      ( ( ( ~ ( ssList @ SV49 ) )
        = $true )
      | ( ( ! [SY188: $i] :
              ( ~ ( ssList @ SY188 )
              | ! [SY189: $i] :
                  ( ~ ( ssItem @ SY189 )
                  | ! [SY190: $i] :
                      ( ~ ( ssItem @ SY190 )
                      | ( ( cons @ SY189 @ SV49 )
                       != ( cons @ SY190 @ SY188 ) )
                      | ~ ( ( SY189 != SY190 )
                          | ( SY188 != SV49 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[373]) ).

thf(441,plain,
    ! [SV50: $i] :
      ( ( ( ~ ( ssItem @ SV50 ) )
        = $true )
      | ( ( ~ ( lt @ SV50 @ SV50 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[374]) ).

thf(442,plain,
    ! [SV51: $i] :
      ( ( ( ~ ( ssList @ SV51 ) )
        = $true )
      | ( ( ~ ( ( nil != SV51 ) )
          | ~ ! [SY191: $i] :
                ~ ~ ( ~ ( ssList @ SY191 )
                    | ( ( tl @ SV51 )
                     != SY191 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[375]) ).

thf(443,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( ssList @ SV52 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( singletonP @ SV52 )
                  | ~ ! [SY192: $i] :
                        ~ ~ ( ~ ( ssItem @ SY192 )
                            | ( ( cons @ SY192 @ nil )
                             != SV52 ) ) )
              | ~ ( ~ ~ ! [SY193: $i] :
                          ~ ~ ( ~ ( ssItem @ SY193 )
                              | ( ( cons @ SY193 @ nil )
                               != SV52 ) )
                  | ( singletonP @ SV52 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[376]) ).

thf(444,plain,
    ! [SV53: $i] :
      ( ( ( ~ ( ssList @ SV53 ) )
        = $true )
      | ( ( ! [SY194: $i] :
              ( ~ ( ssList @ SY194 )
              | ~ ~ ( ~ ( rearsegP @ SV53 @ SY194 )
                    | ~ ( rearsegP @ SY194 @ SV53 ) )
              | ( SV53 = SY194 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[377]) ).

thf(445,plain,
    ! [SV54: $i] :
      ( ( ( ~ ( ssList @ SV54 ) )
        = $true )
      | ( ( ! [SY195: $i] :
              ( ~ ( ssList @ SY195 )
              | ~ ( ~ ( ( nil
                       != ( app @ SV54 @ SY195 ) )
                      | ~ ( ( nil != SY195 )
                          | ( nil != SV54 ) ) )
                  | ~ ( ~ ~ ( ( nil != SY195 )
                            | ( nil != SV54 ) )
                      | ( nil
                        = ( app @ SV54 @ SY195 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[378]) ).

thf(446,plain,
    ! [SV55: $i] :
      ( ( ( ~ ( ssList @ SV55 ) )
        = $true )
      | ( ( ( app @ nil @ SV55 )
          = SV55 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[379]) ).

thf(447,plain,
    ! [SV56: $i] :
      ( ( ( ~ ( ssItem @ SV56 ) )
        = $true )
      | ( ( geq @ SV56 @ SV56 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[380]) ).

thf(448,plain,
    ! [SV57: $i] :
      ( ( ( ~ ( ssItem @ SV57 ) )
        = $true )
      | ( ( ~ ( memberP @ nil @ SV57 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[381]) ).

thf(449,plain,
    ! [SV58: $i] :
      ( ( ( ~ ( ssList @ SV58 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( rearsegP @ nil @ SV58 )
                  | ( nil = SV58 ) )
              | ~ ( ( nil != SV58 )
                  | ( rearsegP @ nil @ SV58 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[382]) ).

thf(450,plain,
    ! [SV59: $i] :
      ( ( ( ~ ( ssList @ SV59 ) )
        = $true )
      | ( ( ! [SY196: $i] :
              ( ~ ( ssItem @ SY196 )
              | ~ ( ~ ( ~ ( memberP @ SV59 @ SY196 )
                      | ~ ! [SY197: $i] :
                            ~ ~ ( ~ ( ssList @ SY197 )
                                | ~ ~ ! [SY198: $i] :
                                        ~ ~ ( ~ ( ssList @ SY198 )
                                            | ( ( app @ SY197 @ ( cons @ SY196 @ SY198 ) )
                                             != SV59 ) ) ) )
                  | ~ ( ~ ~ ! [SY199: $i] :
                              ~ ~ ( ~ ( ssList @ SY199 )
                                  | ~ ~ ! [SY200: $i] :
                                          ~ ~ ( ~ ( ssList @ SY200 )
                                              | ( ( app @ SY199 @ ( cons @ SY196 @ SY200 ) )
                                               != SV59 ) ) )
                      | ( memberP @ SV59 @ SY196 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[383]) ).

thf(451,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( ssList @ SV60 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( segmentP @ nil @ SV60 )
                  | ( nil = SV60 ) )
              | ~ ( ( nil != SV60 )
                  | ( segmentP @ nil @ SV60 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[384]) ).

thf(452,plain,
    ! [SV61: $i] :
      ( ( ( ~ ( ssList @ SV61 ) )
        = $true )
      | ( ( ~ ( ( nil != SV61 ) )
          | ( ssItem @ ( hd @ SV61 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[385]) ).

thf(453,plain,
    ! [SV62: $i] :
      ( ( ( ~ ( ssList @ SV62 ) )
        = $true )
      | ( ( segmentP @ SV62 @ SV62 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[386]) ).

thf(454,plain,
    ! [SV63: $i] :
      ( ( ( ~ ( ssList @ SV63 ) )
        = $true )
      | ( ( ! [SY201: $i] :
              ( ~ ( ssItem @ SY201 )
              | ( nil
               != ( cons @ SY201 @ SV63 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[387]) ).

thf(455,plain,
    ! [SV64: $i] :
      ( ( ( ~ ( ssList @ SV64 ) )
        = $true )
      | ( ( ! [SY202: $i] :
              ( ~ ( ssList @ SY202 )
              | ~ ( ~ ( ~ ( neq @ SV64 @ SY202 )
                      | ( SV64 != SY202 ) )
                  | ~ ( ~ ( ( SV64 != SY202 ) )
                      | ( neq @ SV64 @ SY202 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[388]) ).

thf(456,plain,
    ! [SV65: $i] :
      ( ( ( ~ ( ssList @ SV65 ) )
        = $true )
      | ( ( ! [SY203: $i] :
              ( ~ ( ssList @ SY203 )
              | ! [SY204: $i] :
                  ( ~ ( ssList @ SY204 )
                  | ( ( app @ SY203 @ SY204 )
                   != ( app @ SY203 @ SV65 ) )
                  | ( SY204 = SV65 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[389]) ).

thf(457,plain,
    ! [SV1: $i] :
      ( ( ( ssList @ SV1 )
        = $false )
      | ( ( ! [SY140: $i] :
              ( ~ ( ssList @ SY140 )
              | ! [SY141: $i] :
                  ( ~ ( ssList @ SY141 )
                  | ( ( app @ SY141 @ SY140 )
                   != ( app @ SV1 @ SY140 ) )
                  | ( SY141 = SV1 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[390]) ).

thf(458,plain,
    ! [SV2: $i] :
      ( ( ( ssItem @ SV2 )
        = $false )
      | ( ( duplicatefreeP @ ( cons @ SV2 @ nil ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[391]) ).

thf(459,plain,
    ! [SV3: $i] :
      ( ( ( ssItem @ SV3 )
        = $false )
      | ( ( leq @ SV3 @ SV3 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[392]) ).

thf(460,plain,
    ! [SV4: $i] :
      ( ( ( ssItem @ SV4 )
        = $false )
      | ( ( ! [SY142: $i] :
              ( ~ ( ssItem @ SY142 )
              | ! [SY143: $i] :
                  ( ~ ( ssItem @ SY143 )
                  | ~ ~ ( ~ ( leq @ SV4 @ SY142 )
                        | ~ ( lt @ SY142 @ SY143 ) )
                  | ( lt @ SV4 @ SY143 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[393]) ).

thf(461,plain,
    ! [SV5: $i] :
      ( ( ( ssItem @ SV5 )
        = $false )
      | ( ( ! [SY144: $i] :
              ( ~ ( ssItem @ SY144 )
              | ! [SY145: $i] :
                  ( ~ ( ssItem @ SY145 )
                  | ~ ~ ( ~ ( gt @ SV5 @ SY144 )
                        | ~ ( gt @ SY144 @ SY145 ) )
                  | ( gt @ SV5 @ SY145 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[394]) ).

thf(462,plain,
    ! [SV6: $i] :
      ( ( ( ssItem @ SV6 )
        = $false )
      | ( ( strictorderedP @ ( cons @ SV6 @ nil ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[395]) ).

thf(463,plain,
    ! [SV7: $i] :
      ( ( ( ssList @ SV7 )
        = $false )
      | ( ( ! [SY146: $i] :
              ( ~ ( ssList @ SY146 )
              | ~ ~ ( ~ ( segmentP @ SV7 @ SY146 )
                    | ~ ( segmentP @ SY146 @ SV7 ) )
              | ( SV7 = SY146 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[396]) ).

thf(464,plain,
    ! [SV8: $i] :
      ( ( ( ssList @ SV8 )
        = $false )
      | ( ( ~ ( ( nil != SV8 ) )
          | ( ssList @ ( tl @ SV8 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[397]) ).

thf(465,plain,
    ! [SV9: $i] :
      ( ( ( ssList @ SV9 )
        = $false )
      | ( ( ! [SY147: $i] :
              ( ~ ( ssItem @ SY147 )
              | ( ( cons @ SY147 @ SV9 )
                = ( app @ ( cons @ SY147 @ nil ) @ SV9 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[398]) ).

thf(466,plain,
    ! [SV10: $i] :
      ( ( ( ssItem @ SV10 )
        = $false )
      | ( ( equalelemsP @ ( cons @ SV10 @ nil ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[399]) ).

thf(467,plain,
    ! [SV11: $i] :
      ( ( ( ssItem @ SV11 )
        = $false )
      | ( ( ! [SY148: $i] :
              ( ~ ( ssItem @ SY148 )
              | ~ ( ~ ( ~ ( neq @ SV11 @ SY148 )
                      | ( SV11 != SY148 ) )
                  | ~ ( ~ ( ( SV11 != SY148 ) )
                      | ( neq @ SV11 @ SY148 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[400]) ).

thf(468,plain,
    ! [SV12: $i] :
      ( ( ( ssItem @ SV12 )
        = $false )
      | ( ( ! [SY149: $i] :
              ( ~ ( ssItem @ SY149 )
              | ~ ~ ( ~ ( leq @ SV12 @ SY149 )
                    | ~ ( leq @ SY149 @ SV12 ) )
              | ( SV12 = SY149 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[401]) ).

thf(469,plain,
    ! [SV13: $i] :
      ( ( ( ssList @ SV13 )
        = $false )
      | ( ( ! [SY150: $i] :
              ( ~ ( ssList @ SY150 )
              | ( ssList @ ( app @ SV13 @ SY150 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[402]) ).

thf(470,plain,
    ! [SV14: $i] :
      ( ( ( ssList @ SV14 )
        = $false )
      | ( ( frontsegP @ SV14 @ nil )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[403]) ).

thf(471,plain,
    ! [SV15: $i] :
      ( ( ( ssItem @ SV15 )
        = $false )
      | ( ( ! [SY151: $i] :
              ( ~ ( ssItem @ SY151 )
              | ~ ( leq @ SV15 @ SY151 )
              | ( SV15 = SY151 )
              | ( lt @ SV15 @ SY151 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[404]) ).

thf(472,plain,
    ! [SV16: $i] :
      ( ( ( ssList @ SV16 )
        = $false )
      | ( ( segmentP @ SV16 @ nil )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[405]) ).

thf(473,plain,
    ! [SV17: $i] :
      ( ( ( ssItem @ SV17 )
        = $false )
      | ( ( ! [SY152: $i] :
              ( ~ ( ssList @ SY152 )
              | ! [SY153: $i] :
                  ( ~ ( ssList @ SY153 )
                  | ~ ( ~ ( ~ ( memberP @ ( app @ SY152 @ SY153 ) @ SV17 )
                          | ( memberP @ SY152 @ SV17 )
                          | ( memberP @ SY153 @ SV17 ) )
                      | ~ ( ~ ( ( memberP @ SY152 @ SV17 )
                              | ( memberP @ SY153 @ SV17 ) )
                          | ( memberP @ ( app @ SY152 @ SY153 ) @ SV17 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[406]) ).

thf(474,plain,
    ! [SV18: $i] :
      ( ( ( ssList @ SV18 )
        = $false )
      | ( ( rearsegP @ SV18 @ SV18 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[407]) ).

thf(475,plain,
    ! [SV19: $i] :
      ( ( ( ssItem @ SV19 )
        = $false )
      | ( ( ! [SY154: $i] :
              ( ~ ( ssItem @ SY154 )
              | ! [SY155: $i] :
                  ( ~ ( ssItem @ SY155 )
                  | ~ ~ ( ~ ( geq @ SV19 @ SY154 )
                        | ~ ( geq @ SY154 @ SY155 ) )
                  | ( geq @ SV19 @ SY155 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[408]) ).

thf(476,plain,
    ! [SV20: $i] :
      ( ( ( ssItem @ SV20 )
        = $false )
      | ( ( ! [SY156: $i] :
              ( ~ ( ssItem @ SY156 )
              | ! [SY157: $i] :
                  ( ~ ( ssItem @ SY157 )
                  | ~ ~ ( ~ ( leq @ SV20 @ SY156 )
                        | ~ ( leq @ SY156 @ SY157 ) )
                  | ( leq @ SV20 @ SY157 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[409]) ).

thf(477,plain,
    ! [SV21: $i] :
      ( ( ( ssList @ SV21 )
        = $false )
      | ( ( ! [SY158: $i] :
              ( ~ ( ssItem @ SY158 )
              | ( ( hd @ ( cons @ SY158 @ SV21 ) )
                = SY158 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[410]) ).

thf(478,plain,
    ! [SV22: $i] :
      ( ( ( ssList @ SV22 )
        = $false )
      | ( ( ~ ( ( nil != SV22 ) )
          | ~ ! [SY159: $i] :
                ~ ~ ( ~ ( ssItem @ SY159 )
                    | ( ( hd @ SV22 )
                     != SY159 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[411]) ).

thf(479,plain,
    ! [SV23: $i] :
      ( ( ( ssItem @ SV23 )
        = $false )
      | ( ( ! [SY160: $i] :
              ( ~ ( ssItem @ SY160 )
              | ! [SY161: $i] :
                  ( ~ ( ssList @ SY161 )
                  | ~ ( ~ ( ~ ( memberP @ ( cons @ SY160 @ SY161 ) @ SV23 )
                          | ( SV23 = SY160 )
                          | ( memberP @ SY161 @ SV23 ) )
                      | ~ ( ~ ( ( SV23 = SY160 )
                              | ( memberP @ SY161 @ SV23 ) )
                          | ( memberP @ ( cons @ SY160 @ SY161 ) @ SV23 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[412]) ).

thf(480,plain,
    ! [SV24: $i] :
      ( ( ( ssItem @ SV24 )
        = $false )
      | ( ( ! [SY162: $i] :
              ( ~ ( ssItem @ SY162 )
              | ! [SY163: $i] :
                  ( ~ ( ssItem @ SY163 )
                  | ~ ~ ( ~ ( lt @ SV24 @ SY162 )
                        | ~ ( lt @ SY162 @ SY163 ) )
                  | ( lt @ SV24 @ SY163 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[413]) ).

thf(481,plain,
    ! [SV25: $i] :
      ( ( ( ssItem @ SV25 )
        = $false )
      | ( ( ! [SY164: $i] :
              ( ~ ( ssItem @ SY164 )
              | ! [SY165: $i] :
                  ( ~ ( ssList @ SY165 )
                  | ! [SY166: $i] :
                      ( ~ ( ssList @ SY166 )
                      | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SY165 ) @ ( cons @ SY164 @ SY166 ) )
                              | ~ ( ( SV25 != SY164 )
                                  | ~ ( frontsegP @ SY165 @ SY166 ) ) )
                          | ~ ( ~ ~ ( ( SV25 != SY164 )
                                    | ~ ( frontsegP @ SY165 @ SY166 ) )
                              | ( frontsegP @ ( cons @ SV25 @ SY165 ) @ ( cons @ SY164 @ SY166 ) ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[414]) ).

thf(482,plain,
    ! [SV26: $i] :
      ( ( ( ssList @ SV26 )
        = $false )
      | ( ( ! [SY167: $i] :
              ( ~ ( ssList @ SY167 )
              | ! [SY168: $i] :
                  ( ~ ( ssList @ SY168 )
                  | ~ ~ ( ~ ( segmentP @ SV26 @ SY167 )
                        | ~ ( segmentP @ SY167 @ SY168 ) )
                  | ( segmentP @ SV26 @ SY168 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[415]) ).

thf(483,plain,
    ! [SV27: $i] :
      ( ( ( ssList @ SV27 )
        = $false )
      | ( ( ! [SY169: $i] :
              ( ~ ( ssList @ SY169 )
              | ! [SY170: $i] :
                  ( ~ ( ssList @ SY170 )
                  | ~ ~ ( ~ ( frontsegP @ SV27 @ SY169 )
                        | ~ ( frontsegP @ SY169 @ SY170 ) )
                  | ( frontsegP @ SV27 @ SY170 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[416]) ).

thf(484,plain,
    ! [SV28: $i] :
      ( ( ( ssList @ SV28 )
        = $false )
      | ( ( ! [SY171: $i] :
              ( ~ ( ssItem @ SY171 )
              | ( ( cons @ SY171 @ SV28 )
               != SV28 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[417]) ).

thf(485,plain,
    ! [SV29: $i] :
      ( ( ( ssItem @ SV29 )
        = $false )
      | ( ( ! [SY172: $i] :
              ( ~ ( ssItem @ SY172 )
              | ~ ( ~ ( ~ ( lt @ SV29 @ SY172 )
                      | ~ ( ~ ( ( SV29 != SY172 ) )
                          | ~ ( leq @ SV29 @ SY172 ) ) )
                  | ~ ( ~ ~ ( ~ ( ( SV29 != SY172 ) )
                            | ~ ( leq @ SV29 @ SY172 ) )
                      | ( lt @ SV29 @ SY172 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[418]) ).

thf(486,plain,
    ! [SV30: $i] :
      ( ( ( ssItem @ SV30 )
        = $false )
      | ( ( ! [SY173: $i] :
              ( ~ ( ssItem @ SY173 )
              | ~ ( lt @ SV30 @ SY173 )
              | ~ ( lt @ SY173 @ SV30 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[419]) ).

thf(487,plain,
    ( ( ~ ( ~ ( ssItem @ sK2_SX0 )
          | ~ ~ ! [SY205: $i] :
                  ~ ~ ( ~ ( ssItem @ SY205 )
                      | ~ ( ( sK2_SX0 != SY205 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[420]) ).

thf(488,plain,
    ! [SV31: $i] :
      ( ( ( ssList @ SV31 )
        = $false )
      | ( ( ! [SY174: $i] :
              ( ~ ( ssList @ SY174 )
              | ~ ~ ( ~ ( frontsegP @ SV31 @ SY174 )
                    | ~ ( frontsegP @ SY174 @ SV31 ) )
              | ( SV31 = SY174 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[421]) ).

thf(489,plain,
    ( ( ~ ( ssList @ sK3_SX0 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[422]) ).

thf(490,plain,
    ( ( ! [SY206: $i] :
          ( ~ ( ssList @ SY206 )
          | ! [SY207: $i] :
              ( ~ ( ssList @ SY207 )
              | ( sK3_SX0 != SY207 )
              | ( sK1_U != SY206 )
              | ~ ( neq @ sK3_SX0 @ nil )
              | ( neq @ sK1_U @ nil )
              | ~ ( ~ ! [SX3: $i] :
                        ( ~ ( ssItem @ SX3 )
                        | ( ( cons @ SX3 @ nil )
                         != SY206 )
                        | ~ ( memberP @ SY207 @ SX3 )
                        | ~ ! [SX4: $i] :
                              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SX4 )
                                              | ~ ( ( SX3 != SX4 ) ) )
                                        | ~ ( memberP @ SY207 @ SX4 ) )
                                  | ~ ( leq @ SX3 @ SX4 ) ) )
                  | ~ ( ( nil != SY207 )
                      | ( nil != SY206 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[422]) ).

thf(491,plain,
    ! [SV32: $i] :
      ( ( ( ssItem @ SV32 )
        = $false )
      | ( ( totalorderP @ ( cons @ SV32 @ nil ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[423]) ).

thf(492,plain,
    ! [SV33: $i] :
      ( ( ( ssItem @ SV33 )
        = $false )
      | ( ( cyclefreeP @ ( cons @ SV33 @ nil ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[424]) ).

thf(493,plain,
    ! [SV34: $i] :
      ( ( ( ssList @ SV34 )
        = $false )
      | ( ( rearsegP @ SV34 @ nil )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[425]) ).

thf(494,plain,
    ! [SV35: $i] :
      ( ( ( ssItem @ SV35 )
        = $false )
      | ( ( ! [SY175: $i] :
              ( ~ ( ssItem @ SY175 )
              | ~ ( gt @ SV35 @ SY175 )
              | ~ ( gt @ SY175 @ SV35 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[426]) ).

thf(495,plain,
    ! [SV36: $i] :
      ( ( ( ssList @ SV36 )
        = $false )
      | ( ( ! [SY176: $i] :
              ( ~ ( ssList @ SY176 )
              | ! [SY177: $i] :
                  ( ~ ( ssList @ SY177 )
                  | ( ( app @ ( app @ SV36 @ SY176 ) @ SY177 )
                    = ( app @ SV36 @ ( app @ SY176 @ SY177 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[427]) ).

thf(496,plain,
    ! [SV37: $i] :
      ( ( ( ssList @ SV37 )
        = $false )
      | ( ( ! [SY178: $i] :
              ( ~ ( ssItem @ SY178 )
              | ( ssList @ ( cons @ SY178 @ SV37 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[428]) ).

thf(497,plain,
    ! [SV38: $i] :
      ( ( ( ssList @ SV38 )
        = $false )
      | ( ( ! [SY179: $i] :
              ( ~ ( ssList @ SY179 )
              | ! [SY180: $i] :
                  ( ~ ( ssList @ SY180 )
                  | ~ ~ ( ~ ( rearsegP @ SV38 @ SY179 )
                        | ~ ( rearsegP @ SY179 @ SY180 ) )
                  | ( rearsegP @ SV38 @ SY180 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[429]) ).

thf(498,plain,
    ! [SV39: $i] :
      ( ( ( ssList @ SV39 )
        = $false )
      | ( ( ! [SY181: $i] :
              ( ~ ( ssList @ SY181 )
              | ! [SY182: $i] :
                  ( ~ ( ssItem @ SY182 )
                  | ( ( cons @ SY182 @ ( app @ SY181 @ SV39 ) )
                    = ( app @ ( cons @ SY182 @ SY181 ) @ SV39 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[430]) ).

thf(499,plain,
    ! [SV40: $i] :
      ( ( ( ssList @ SV40 )
        = $false )
      | ( ( ( app @ SV40 @ nil )
          = SV40 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[431]) ).

thf(500,plain,
    ! [SV41: $i] :
      ( ( ( ssItem @ SV41 )
        = $false )
      | ( ( ! [SY183: $i] :
              ( ~ ( ssItem @ SY183 )
              | ~ ~ ( ~ ( geq @ SV41 @ SY183 )
                    | ~ ( geq @ SY183 @ SV41 ) )
              | ( SV41 = SY183 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[432]) ).

thf(501,plain,
    ! [SV42: $i] :
      ( ( ( ssList @ SV42 )
        = $false )
      | ( ( ( nil = SV42 )
          | ~ ! [SY184: $i] :
                ~ ~ ( ~ ( ssList @ SY184 )
                    | ~ ~ ! [SY185: $i] :
                            ~ ~ ( ~ ( ssItem @ SY185 )
                                | ( ( cons @ SY185 @ SY184 )
                                 != SV42 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[433]) ).

thf(502,plain,
    ! [SV43: $i] :
      ( ( ( ssList @ SV43 )
        = $false )
      | ( ( frontsegP @ SV43 @ SV43 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[434]) ).

thf(503,plain,
    ! [SV44: $i] :
      ( ( ( ssItem @ SV44 )
        = $false )
      | ( ( ! [SY186: $i] :
              ( ~ ( ssItem @ SY186 )
              | ~ ( ~ ( ~ ( geq @ SV44 @ SY186 )
                      | ( leq @ SY186 @ SV44 ) )
                  | ~ ( ~ ( leq @ SY186 @ SV44 )
                      | ( geq @ SV44 @ SY186 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[435]) ).

thf(504,plain,
    ! [SV45: $i] :
      ( ( ( ssItem @ SV45 )
        = $false )
      | ( ( strictorderP @ ( cons @ SV45 @ nil ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[436]) ).

thf(505,plain,
    ! [SV46: $i] :
      ( ( ( ssItem @ SV46 )
        = $false )
      | ( ( totalorderedP @ ( cons @ SV46 @ nil ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[437]) ).

thf(506,plain,
    ! [SV47: $i] :
      ( ( ( ssList @ SV47 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( frontsegP @ nil @ SV47 )
                  | ( nil = SV47 ) )
              | ~ ( ( nil != SV47 )
                  | ( frontsegP @ nil @ SV47 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[438]) ).

thf(507,plain,
    ! [SV48: $i] :
      ( ( ( ssList @ SV48 )
        = $false )
      | ( ( ! [SY187: $i] :
              ( ~ ( ssItem @ SY187 )
              | ( ( tl @ ( cons @ SY187 @ SV48 ) )
                = SV48 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[439]) ).

thf(508,plain,
    ! [SV49: $i] :
      ( ( ( ssList @ SV49 )
        = $false )
      | ( ( ! [SY188: $i] :
              ( ~ ( ssList @ SY188 )
              | ! [SY189: $i] :
                  ( ~ ( ssItem @ SY189 )
                  | ! [SY190: $i] :
                      ( ~ ( ssItem @ SY190 )
                      | ( ( cons @ SY189 @ SV49 )
                       != ( cons @ SY190 @ SY188 ) )
                      | ~ ( ( SY189 != SY190 )
                          | ( SY188 != SV49 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[440]) ).

thf(509,plain,
    ! [SV50: $i] :
      ( ( ( ssItem @ SV50 )
        = $false )
      | ( ( ~ ( lt @ SV50 @ SV50 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[441]) ).

thf(510,plain,
    ! [SV51: $i] :
      ( ( ( ssList @ SV51 )
        = $false )
      | ( ( ~ ( ( nil != SV51 ) )
          | ~ ! [SY191: $i] :
                ~ ~ ( ~ ( ssList @ SY191 )
                    | ( ( tl @ SV51 )
                     != SY191 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[442]) ).

thf(511,plain,
    ! [SV52: $i] :
      ( ( ( ssList @ SV52 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( singletonP @ SV52 )
                  | ~ ! [SY192: $i] :
                        ~ ~ ( ~ ( ssItem @ SY192 )
                            | ( ( cons @ SY192 @ nil )
                             != SV52 ) ) )
              | ~ ( ~ ~ ! [SY193: $i] :
                          ~ ~ ( ~ ( ssItem @ SY193 )
                              | ( ( cons @ SY193 @ nil )
                               != SV52 ) )
                  | ( singletonP @ SV52 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[443]) ).

thf(512,plain,
    ! [SV53: $i] :
      ( ( ( ssList @ SV53 )
        = $false )
      | ( ( ! [SY194: $i] :
              ( ~ ( ssList @ SY194 )
              | ~ ~ ( ~ ( rearsegP @ SV53 @ SY194 )
                    | ~ ( rearsegP @ SY194 @ SV53 ) )
              | ( SV53 = SY194 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[444]) ).

thf(513,plain,
    ! [SV54: $i] :
      ( ( ( ssList @ SV54 )
        = $false )
      | ( ( ! [SY195: $i] :
              ( ~ ( ssList @ SY195 )
              | ~ ( ~ ( ( nil
                       != ( app @ SV54 @ SY195 ) )
                      | ~ ( ( nil != SY195 )
                          | ( nil != SV54 ) ) )
                  | ~ ( ~ ~ ( ( nil != SY195 )
                            | ( nil != SV54 ) )
                      | ( nil
                        = ( app @ SV54 @ SY195 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[445]) ).

thf(514,plain,
    ! [SV55: $i] :
      ( ( ( ssList @ SV55 )
        = $false )
      | ( ( ( app @ nil @ SV55 )
          = SV55 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[446]) ).

thf(515,plain,
    ! [SV56: $i] :
      ( ( ( ssItem @ SV56 )
        = $false )
      | ( ( geq @ SV56 @ SV56 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[447]) ).

thf(516,plain,
    ! [SV57: $i] :
      ( ( ( ssItem @ SV57 )
        = $false )
      | ( ( ~ ( memberP @ nil @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[448]) ).

thf(517,plain,
    ! [SV58: $i] :
      ( ( ( ssList @ SV58 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( rearsegP @ nil @ SV58 )
                  | ( nil = SV58 ) )
              | ~ ( ( nil != SV58 )
                  | ( rearsegP @ nil @ SV58 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[449]) ).

thf(518,plain,
    ! [SV59: $i] :
      ( ( ( ssList @ SV59 )
        = $false )
      | ( ( ! [SY196: $i] :
              ( ~ ( ssItem @ SY196 )
              | ~ ( ~ ( ~ ( memberP @ SV59 @ SY196 )
                      | ~ ! [SY197: $i] :
                            ~ ~ ( ~ ( ssList @ SY197 )
                                | ~ ~ ! [SY198: $i] :
                                        ~ ~ ( ~ ( ssList @ SY198 )
                                            | ( ( app @ SY197 @ ( cons @ SY196 @ SY198 ) )
                                             != SV59 ) ) ) )
                  | ~ ( ~ ~ ! [SY199: $i] :
                              ~ ~ ( ~ ( ssList @ SY199 )
                                  | ~ ~ ! [SY200: $i] :
                                          ~ ~ ( ~ ( ssList @ SY200 )
                                              | ( ( app @ SY199 @ ( cons @ SY196 @ SY200 ) )
                                               != SV59 ) ) )
                      | ( memberP @ SV59 @ SY196 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[450]) ).

thf(519,plain,
    ! [SV60: $i] :
      ( ( ( ssList @ SV60 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( segmentP @ nil @ SV60 )
                  | ( nil = SV60 ) )
              | ~ ( ( nil != SV60 )
                  | ( segmentP @ nil @ SV60 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[451]) ).

thf(520,plain,
    ! [SV61: $i] :
      ( ( ( ssList @ SV61 )
        = $false )
      | ( ( ~ ( ( nil != SV61 ) )
          | ( ssItem @ ( hd @ SV61 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[452]) ).

thf(521,plain,
    ! [SV62: $i] :
      ( ( ( ssList @ SV62 )
        = $false )
      | ( ( segmentP @ SV62 @ SV62 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[453]) ).

thf(522,plain,
    ! [SV63: $i] :
      ( ( ( ssList @ SV63 )
        = $false )
      | ( ( ! [SY201: $i] :
              ( ~ ( ssItem @ SY201 )
              | ( nil
               != ( cons @ SY201 @ SV63 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[454]) ).

thf(523,plain,
    ! [SV64: $i] :
      ( ( ( ssList @ SV64 )
        = $false )
      | ( ( ! [SY202: $i] :
              ( ~ ( ssList @ SY202 )
              | ~ ( ~ ( ~ ( neq @ SV64 @ SY202 )
                      | ( SV64 != SY202 ) )
                  | ~ ( ~ ( ( SV64 != SY202 ) )
                      | ( neq @ SV64 @ SY202 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[455]) ).

thf(524,plain,
    ! [SV65: $i] :
      ( ( ( ssList @ SV65 )
        = $false )
      | ( ( ! [SY203: $i] :
              ( ~ ( ssList @ SY203 )
              | ! [SY204: $i] :
                  ( ~ ( ssList @ SY204 )
                  | ( ( app @ SY203 @ SY204 )
                   != ( app @ SY203 @ SV65 ) )
                  | ( SY204 = SV65 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[456]) ).

thf(525,plain,
    ! [SV1: $i,SV66: $i] :
      ( ( ( ~ ( ssList @ SV66 )
          | ! [SY210: $i] :
              ( ~ ( ssList @ SY210 )
              | ( ( app @ SY210 @ SV66 )
               != ( app @ SV1 @ SV66 ) )
              | ( SY210 = SV1 ) ) )
        = $true )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[457]) ).

thf(526,plain,
    ! [SV4: $i,SV67: $i] :
      ( ( ( ~ ( ssItem @ SV67 )
          | ! [SY211: $i] :
              ( ~ ( ssItem @ SY211 )
              | ~ ~ ( ~ ( leq @ SV4 @ SV67 )
                    | ~ ( lt @ SV67 @ SY211 ) )
              | ( lt @ SV4 @ SY211 ) ) )
        = $true )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(527,plain,
    ! [SV5: $i,SV68: $i] :
      ( ( ( ~ ( ssItem @ SV68 )
          | ! [SY212: $i] :
              ( ~ ( ssItem @ SY212 )
              | ~ ~ ( ~ ( gt @ SV5 @ SV68 )
                    | ~ ( gt @ SV68 @ SY212 ) )
              | ( gt @ SV5 @ SY212 ) ) )
        = $true )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[461]) ).

thf(528,plain,
    ! [SV7: $i,SV69: $i] :
      ( ( ( ~ ( ssList @ SV69 )
          | ~ ~ ( ~ ( segmentP @ SV7 @ SV69 )
                | ~ ( segmentP @ SV69 @ SV7 ) )
          | ( SV7 = SV69 ) )
        = $true )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[463]) ).

thf(529,plain,
    ! [SV8: $i] :
      ( ( ( ~ ( ( nil != SV8 ) ) )
        = $true )
      | ( ( ssList @ ( tl @ SV8 ) )
        = $true )
      | ( ( ssList @ SV8 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[464]) ).

thf(530,plain,
    ! [SV9: $i,SV70: $i] :
      ( ( ( ~ ( ssItem @ SV70 )
          | ( ( cons @ SV70 @ SV9 )
            = ( app @ ( cons @ SV70 @ nil ) @ SV9 ) ) )
        = $true )
      | ( ( ssList @ SV9 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[465]) ).

thf(531,plain,
    ! [SV11: $i,SV71: $i] :
      ( ( ( ~ ( ssItem @ SV71 )
          | ~ ( ~ ( ~ ( neq @ SV11 @ SV71 )
                  | ( SV11 != SV71 ) )
              | ~ ( ~ ( ( SV11 != SV71 ) )
                  | ( neq @ SV11 @ SV71 ) ) ) )
        = $true )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[467]) ).

thf(532,plain,
    ! [SV12: $i,SV72: $i] :
      ( ( ( ~ ( ssItem @ SV72 )
          | ~ ~ ( ~ ( leq @ SV12 @ SV72 )
                | ~ ( leq @ SV72 @ SV12 ) )
          | ( SV12 = SV72 ) )
        = $true )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[468]) ).

thf(533,plain,
    ! [SV13: $i,SV73: $i] :
      ( ( ( ~ ( ssList @ SV73 )
          | ( ssList @ ( app @ SV13 @ SV73 ) ) )
        = $true )
      | ( ( ssList @ SV13 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[469]) ).

thf(534,plain,
    ! [SV15: $i,SV74: $i] :
      ( ( ( ~ ( ssItem @ SV74 )
          | ~ ( leq @ SV15 @ SV74 )
          | ( SV15 = SV74 )
          | ( lt @ SV15 @ SV74 ) )
        = $true )
      | ( ( ssItem @ SV15 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[471]) ).

thf(535,plain,
    ! [SV17: $i,SV75: $i] :
      ( ( ( ~ ( ssList @ SV75 )
          | ! [SY213: $i] :
              ( ~ ( ssList @ SY213 )
              | ~ ( ~ ( ~ ( memberP @ ( app @ SV75 @ SY213 ) @ SV17 )
                      | ( memberP @ SV75 @ SV17 )
                      | ( memberP @ SY213 @ SV17 ) )
                  | ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                          | ( memberP @ SY213 @ SV17 ) )
                      | ( memberP @ ( app @ SV75 @ SY213 ) @ SV17 ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[473]) ).

thf(536,plain,
    ! [SV19: $i,SV76: $i] :
      ( ( ( ~ ( ssItem @ SV76 )
          | ! [SY214: $i] :
              ( ~ ( ssItem @ SY214 )
              | ~ ~ ( ~ ( geq @ SV19 @ SV76 )
                    | ~ ( geq @ SV76 @ SY214 ) )
              | ( geq @ SV19 @ SY214 ) ) )
        = $true )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[475]) ).

thf(537,plain,
    ! [SV20: $i,SV77: $i] :
      ( ( ( ~ ( ssItem @ SV77 )
          | ! [SY215: $i] :
              ( ~ ( ssItem @ SY215 )
              | ~ ~ ( ~ ( leq @ SV20 @ SV77 )
                    | ~ ( leq @ SV77 @ SY215 ) )
              | ( leq @ SV20 @ SY215 ) ) )
        = $true )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[476]) ).

thf(538,plain,
    ! [SV21: $i,SV78: $i] :
      ( ( ( ~ ( ssItem @ SV78 )
          | ( ( hd @ ( cons @ SV78 @ SV21 ) )
            = SV78 ) )
        = $true )
      | ( ( ssList @ SV21 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[477]) ).

thf(539,plain,
    ! [SV22: $i] :
      ( ( ( ~ ( ( nil != SV22 ) ) )
        = $true )
      | ( ( ~ ! [SY159: $i] :
                ~ ~ ( ~ ( ssItem @ SY159 )
                    | ( ( hd @ SV22 )
                     != SY159 ) ) )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[478]) ).

thf(540,plain,
    ! [SV23: $i,SV79: $i] :
      ( ( ( ~ ( ssItem @ SV79 )
          | ! [SY216: $i] :
              ( ~ ( ssList @ SY216 )
              | ~ ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SY216 ) @ SV23 )
                      | ( SV23 = SV79 )
                      | ( memberP @ SY216 @ SV23 ) )
                  | ~ ( ~ ( ( SV23 = SV79 )
                          | ( memberP @ SY216 @ SV23 ) )
                      | ( memberP @ ( cons @ SV79 @ SY216 ) @ SV23 ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[479]) ).

thf(541,plain,
    ! [SV24: $i,SV80: $i] :
      ( ( ( ~ ( ssItem @ SV80 )
          | ! [SY217: $i] :
              ( ~ ( ssItem @ SY217 )
              | ~ ~ ( ~ ( lt @ SV24 @ SV80 )
                    | ~ ( lt @ SV80 @ SY217 ) )
              | ( lt @ SV24 @ SY217 ) ) )
        = $true )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(542,plain,
    ! [SV25: $i,SV81: $i] :
      ( ( ( ~ ( ssItem @ SV81 )
          | ! [SY218: $i] :
              ( ~ ( ssList @ SY218 )
              | ! [SY219: $i] :
                  ( ~ ( ssList @ SY219 )
                  | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SY218 ) @ ( cons @ SV81 @ SY219 ) )
                          | ~ ( ( SV25 != SV81 )
                              | ~ ( frontsegP @ SY218 @ SY219 ) ) )
                      | ~ ( ~ ~ ( ( SV25 != SV81 )
                                | ~ ( frontsegP @ SY218 @ SY219 ) )
                          | ( frontsegP @ ( cons @ SV25 @ SY218 ) @ ( cons @ SV81 @ SY219 ) ) ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(543,plain,
    ! [SV26: $i,SV82: $i] :
      ( ( ( ~ ( ssList @ SV82 )
          | ! [SY220: $i] :
              ( ~ ( ssList @ SY220 )
              | ~ ~ ( ~ ( segmentP @ SV26 @ SV82 )
                    | ~ ( segmentP @ SV82 @ SY220 ) )
              | ( segmentP @ SV26 @ SY220 ) ) )
        = $true )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[482]) ).

thf(544,plain,
    ! [SV27: $i,SV83: $i] :
      ( ( ( ~ ( ssList @ SV83 )
          | ! [SY221: $i] :
              ( ~ ( ssList @ SY221 )
              | ~ ~ ( ~ ( frontsegP @ SV27 @ SV83 )
                    | ~ ( frontsegP @ SV83 @ SY221 ) )
              | ( frontsegP @ SV27 @ SY221 ) ) )
        = $true )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[483]) ).

thf(545,plain,
    ! [SV28: $i,SV84: $i] :
      ( ( ( ~ ( ssItem @ SV84 )
          | ( ( cons @ SV84 @ SV28 )
           != SV28 ) )
        = $true )
      | ( ( ssList @ SV28 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[484]) ).

thf(546,plain,
    ! [SV29: $i,SV85: $i] :
      ( ( ( ~ ( ssItem @ SV85 )
          | ~ ( ~ ( ~ ( lt @ SV29 @ SV85 )
                  | ~ ( ~ ( ( SV29 != SV85 ) )
                      | ~ ( leq @ SV29 @ SV85 ) ) )
              | ~ ( ~ ~ ( ~ ( ( SV29 != SV85 ) )
                        | ~ ( leq @ SV29 @ SV85 ) )
                  | ( lt @ SV29 @ SV85 ) ) ) )
        = $true )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[485]) ).

thf(547,plain,
    ! [SV30: $i,SV86: $i] :
      ( ( ( ~ ( ssItem @ SV86 )
          | ~ ( lt @ SV30 @ SV86 )
          | ~ ( lt @ SV86 @ SV30 ) )
        = $true )
      | ( ( ssItem @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[486]) ).

thf(548,plain,
    ( ( ~ ( ssItem @ sK2_SX0 )
      | ~ ~ ! [SY205: $i] :
              ~ ~ ( ~ ( ssItem @ SY205 )
                  | ~ ( ( sK2_SX0 != SY205 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[487]) ).

thf(549,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( ~ ( ssList @ SV87 )
          | ~ ~ ( ~ ( frontsegP @ SV31 @ SV87 )
                | ~ ( frontsegP @ SV87 @ SV31 ) )
          | ( SV31 = SV87 ) )
        = $true )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(550,plain,
    ( ( ssList @ sK3_SX0 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[489]) ).

thf(551,plain,
    ( ( ~ ( ssList @ sK4_SY206 )
      | ! [SY222: $i] :
          ( ~ ( ssList @ SY222 )
          | ( sK3_SX0 != SY222 )
          | ( sK1_U != sK4_SY206 )
          | ~ ( neq @ sK3_SX0 @ nil )
          | ( neq @ sK1_U @ nil )
          | ~ ( ~ ! [SY223: $i] :
                    ( ~ ( ssItem @ SY223 )
                    | ( ( cons @ SY223 @ nil )
                     != sK4_SY206 )
                    | ~ ( memberP @ SY222 @ SY223 )
                    | ~ ! [SX4: $i] :
                          ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SX4 )
                                          | ~ ( ( SY223 != SX4 ) ) )
                                    | ~ ( memberP @ SY222 @ SX4 ) )
                              | ~ ( leq @ SY223 @ SX4 ) ) )
              | ~ ( ( nil != SY222 )
                  | ( nil != sK4_SY206 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[490]) ).

thf(552,plain,
    ! [SV35: $i,SV88: $i] :
      ( ( ( ~ ( ssItem @ SV88 )
          | ~ ( gt @ SV35 @ SV88 )
          | ~ ( gt @ SV88 @ SV35 ) )
        = $true )
      | ( ( ssItem @ SV35 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[494]) ).

thf(553,plain,
    ! [SV36: $i,SV89: $i] :
      ( ( ( ~ ( ssList @ SV89 )
          | ! [SY225: $i] :
              ( ~ ( ssList @ SY225 )
              | ( ( app @ ( app @ SV36 @ SV89 ) @ SY225 )
                = ( app @ SV36 @ ( app @ SV89 @ SY225 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV36 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[495]) ).

thf(554,plain,
    ! [SV37: $i,SV90: $i] :
      ( ( ( ~ ( ssItem @ SV90 )
          | ( ssList @ ( cons @ SV90 @ SV37 ) ) )
        = $true )
      | ( ( ssList @ SV37 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[496]) ).

thf(555,plain,
    ! [SV38: $i,SV91: $i] :
      ( ( ( ~ ( ssList @ SV91 )
          | ! [SY226: $i] :
              ( ~ ( ssList @ SY226 )
              | ~ ~ ( ~ ( rearsegP @ SV38 @ SV91 )
                    | ~ ( rearsegP @ SV91 @ SY226 ) )
              | ( rearsegP @ SV38 @ SY226 ) ) )
        = $true )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[497]) ).

thf(556,plain,
    ! [SV39: $i,SV92: $i] :
      ( ( ( ~ ( ssList @ SV92 )
          | ! [SY227: $i] :
              ( ~ ( ssItem @ SY227 )
              | ( ( cons @ SY227 @ ( app @ SV92 @ SV39 ) )
                = ( app @ ( cons @ SY227 @ SV92 ) @ SV39 ) ) ) )
        = $true )
      | ( ( ssList @ SV39 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[498]) ).

thf(557,plain,
    ! [SV41: $i,SV93: $i] :
      ( ( ( ~ ( ssItem @ SV93 )
          | ~ ~ ( ~ ( geq @ SV41 @ SV93 )
                | ~ ( geq @ SV93 @ SV41 ) )
          | ( SV41 = SV93 ) )
        = $true )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[500]) ).

thf(558,plain,
    ! [SV42: $i] :
      ( ( ( nil = SV42 )
        = $true )
      | ( ( ~ ! [SY184: $i] :
                ~ ~ ( ~ ( ssList @ SY184 )
                    | ~ ~ ! [SY185: $i] :
                            ~ ~ ( ~ ( ssItem @ SY185 )
                                | ( ( cons @ SY185 @ SY184 )
                                 != SV42 ) ) ) )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[501]) ).

thf(559,plain,
    ! [SV44: $i,SV94: $i] :
      ( ( ( ~ ( ssItem @ SV94 )
          | ~ ( ~ ( ~ ( geq @ SV44 @ SV94 )
                  | ( leq @ SV94 @ SV44 ) )
              | ~ ( ~ ( leq @ SV94 @ SV44 )
                  | ( geq @ SV44 @ SV94 ) ) ) )
        = $true )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(560,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( ~ ( frontsegP @ nil @ SV47 )
              | ( nil = SV47 ) )
          | ~ ( ( nil != SV47 )
              | ( frontsegP @ nil @ SV47 ) ) )
        = $false )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[506]) ).

thf(561,plain,
    ! [SV48: $i,SV95: $i] :
      ( ( ( ~ ( ssItem @ SV95 )
          | ( ( tl @ ( cons @ SV95 @ SV48 ) )
            = SV48 ) )
        = $true )
      | ( ( ssList @ SV48 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[507]) ).

thf(562,plain,
    ! [SV49: $i,SV96: $i] :
      ( ( ( ~ ( ssList @ SV96 )
          | ! [SY228: $i] :
              ( ~ ( ssItem @ SY228 )
              | ! [SY229: $i] :
                  ( ~ ( ssItem @ SY229 )
                  | ( ( cons @ SY228 @ SV49 )
                   != ( cons @ SY229 @ SV96 ) )
                  | ~ ( ( SY228 != SY229 )
                      | ( SV96 != SV49 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[508]) ).

thf(563,plain,
    ! [SV50: $i] :
      ( ( ( lt @ SV50 @ SV50 )
        = $false )
      | ( ( ssItem @ SV50 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[509]) ).

thf(564,plain,
    ! [SV51: $i] :
      ( ( ( ~ ( ( nil != SV51 ) ) )
        = $true )
      | ( ( ~ ! [SY191: $i] :
                ~ ~ ( ~ ( ssList @ SY191 )
                    | ( ( tl @ SV51 )
                     != SY191 ) ) )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[510]) ).

thf(565,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( ~ ( singletonP @ SV52 )
              | ~ ! [SY192: $i] :
                    ~ ~ ( ~ ( ssItem @ SY192 )
                        | ( ( cons @ SY192 @ nil )
                         != SV52 ) ) )
          | ~ ( ~ ~ ! [SY193: $i] :
                      ~ ~ ( ~ ( ssItem @ SY193 )
                          | ( ( cons @ SY193 @ nil )
                           != SV52 ) )
              | ( singletonP @ SV52 ) ) )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[511]) ).

thf(566,plain,
    ! [SV53: $i,SV97: $i] :
      ( ( ( ~ ( ssList @ SV97 )
          | ~ ~ ( ~ ( rearsegP @ SV53 @ SV97 )
                | ~ ( rearsegP @ SV97 @ SV53 ) )
          | ( SV53 = SV97 ) )
        = $true )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[512]) ).

thf(567,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ~ ( ssList @ SV98 )
          | ~ ( ~ ( ( nil
                   != ( app @ SV54 @ SV98 ) )
                  | ~ ( ( nil != SV98 )
                      | ( nil != SV54 ) ) )
              | ~ ( ~ ~ ( ( nil != SV98 )
                        | ( nil != SV54 ) )
                  | ( nil
                    = ( app @ SV54 @ SV98 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[513]) ).

thf(568,plain,
    ! [SV57: $i] :
      ( ( ( memberP @ nil @ SV57 )
        = $false )
      | ( ( ssItem @ SV57 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[516]) ).

thf(569,plain,
    ! [SV58: $i] :
      ( ( ( ~ ( ~ ( rearsegP @ nil @ SV58 )
              | ( nil = SV58 ) )
          | ~ ( ( nil != SV58 )
              | ( rearsegP @ nil @ SV58 ) ) )
        = $false )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[517]) ).

thf(570,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ( ssItem @ SV99 )
          | ~ ( ~ ( ~ ( memberP @ SV59 @ SV99 )
                  | ~ ! [SY230: $i] :
                        ~ ~ ( ~ ( ssList @ SY230 )
                            | ~ ~ ! [SY231: $i] :
                                    ~ ~ ( ~ ( ssList @ SY231 )
                                        | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                         != SV59 ) ) ) )
              | ~ ( ~ ~ ! [SY232: $i] :
                          ~ ~ ( ~ ( ssList @ SY232 )
                              | ~ ~ ! [SY233: $i] :
                                      ~ ~ ( ~ ( ssList @ SY233 )
                                          | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                           != SV59 ) ) )
                  | ( memberP @ SV59 @ SV99 ) ) ) )
        = $true )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[518]) ).

thf(571,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( ~ ( segmentP @ nil @ SV60 )
              | ( nil = SV60 ) )
          | ~ ( ( nil != SV60 )
              | ( segmentP @ nil @ SV60 ) ) )
        = $false )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[519]) ).

thf(572,plain,
    ! [SV61: $i] :
      ( ( ( ~ ( ( nil != SV61 ) ) )
        = $true )
      | ( ( ssItem @ ( hd @ SV61 ) )
        = $true )
      | ( ( ssList @ SV61 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[520]) ).

thf(573,plain,
    ! [SV63: $i,SV100: $i] :
      ( ( ( ~ ( ssItem @ SV100 )
          | ( nil
           != ( cons @ SV100 @ SV63 ) ) )
        = $true )
      | ( ( ssList @ SV63 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[522]) ).

thf(574,plain,
    ! [SV64: $i,SV101: $i] :
      ( ( ( ~ ( ssList @ SV101 )
          | ~ ( ~ ( ~ ( neq @ SV64 @ SV101 )
                  | ( SV64 != SV101 ) )
              | ~ ( ~ ( ( SV64 != SV101 ) )
                  | ( neq @ SV64 @ SV101 ) ) ) )
        = $true )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[523]) ).

thf(575,plain,
    ! [SV65: $i,SV102: $i] :
      ( ( ( ~ ( ssList @ SV102 )
          | ! [SY234: $i] :
              ( ~ ( ssList @ SY234 )
              | ( ( app @ SV102 @ SY234 )
               != ( app @ SV102 @ SV65 ) )
              | ( SY234 = SV65 ) ) )
        = $true )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[524]) ).

thf(576,plain,
    ! [SV1: $i,SV66: $i] :
      ( ( ( ~ ( ssList @ SV66 ) )
        = $true )
      | ( ( ! [SY210: $i] :
              ( ~ ( ssList @ SY210 )
              | ( ( app @ SY210 @ SV66 )
               != ( app @ SV1 @ SV66 ) )
              | ( SY210 = SV1 ) ) )
        = $true )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[525]) ).

thf(577,plain,
    ! [SV4: $i,SV67: $i] :
      ( ( ( ~ ( ssItem @ SV67 ) )
        = $true )
      | ( ( ! [SY211: $i] :
              ( ~ ( ssItem @ SY211 )
              | ~ ~ ( ~ ( leq @ SV4 @ SV67 )
                    | ~ ( lt @ SV67 @ SY211 ) )
              | ( lt @ SV4 @ SY211 ) ) )
        = $true )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[526]) ).

thf(578,plain,
    ! [SV5: $i,SV68: $i] :
      ( ( ( ~ ( ssItem @ SV68 ) )
        = $true )
      | ( ( ! [SY212: $i] :
              ( ~ ( ssItem @ SY212 )
              | ~ ~ ( ~ ( gt @ SV5 @ SV68 )
                    | ~ ( gt @ SV68 @ SY212 ) )
              | ( gt @ SV5 @ SY212 ) ) )
        = $true )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[527]) ).

thf(579,plain,
    ! [SV7: $i,SV69: $i] :
      ( ( ( ~ ( ssList @ SV69 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( segmentP @ SV7 @ SV69 )
                | ~ ( segmentP @ SV69 @ SV7 ) )
          | ( SV7 = SV69 ) )
        = $true )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[528]) ).

thf(580,plain,
    ! [SV8: $i] :
      ( ( ( nil != SV8 )
        = $false )
      | ( ( ssList @ ( tl @ SV8 ) )
        = $true )
      | ( ( ssList @ SV8 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[529]) ).

thf(581,plain,
    ! [SV9: $i,SV70: $i] :
      ( ( ( ~ ( ssItem @ SV70 ) )
        = $true )
      | ( ( ( cons @ SV70 @ SV9 )
          = ( app @ ( cons @ SV70 @ nil ) @ SV9 ) )
        = $true )
      | ( ( ssList @ SV9 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[530]) ).

thf(582,plain,
    ! [SV11: $i,SV71: $i] :
      ( ( ( ~ ( ssItem @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( neq @ SV11 @ SV71 )
                  | ( SV11 != SV71 ) )
              | ~ ( ~ ( ( SV11 != SV71 ) )
                  | ( neq @ SV11 @ SV71 ) ) ) )
        = $true )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[531]) ).

thf(583,plain,
    ! [SV12: $i,SV72: $i] :
      ( ( ( ~ ( ssItem @ SV72 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( leq @ SV12 @ SV72 )
                | ~ ( leq @ SV72 @ SV12 ) )
          | ( SV12 = SV72 ) )
        = $true )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[532]) ).

thf(584,plain,
    ! [SV13: $i,SV73: $i] :
      ( ( ( ~ ( ssList @ SV73 ) )
        = $true )
      | ( ( ssList @ ( app @ SV13 @ SV73 ) )
        = $true )
      | ( ( ssList @ SV13 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[533]) ).

thf(585,plain,
    ! [SV15: $i,SV74: $i] :
      ( ( ( ~ ( ssItem @ SV74 ) )
        = $true )
      | ( ( ~ ( leq @ SV15 @ SV74 )
          | ( SV15 = SV74 )
          | ( lt @ SV15 @ SV74 ) )
        = $true )
      | ( ( ssItem @ SV15 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[534]) ).

thf(586,plain,
    ! [SV17: $i,SV75: $i] :
      ( ( ( ~ ( ssList @ SV75 ) )
        = $true )
      | ( ( ! [SY213: $i] :
              ( ~ ( ssList @ SY213 )
              | ~ ( ~ ( ~ ( memberP @ ( app @ SV75 @ SY213 ) @ SV17 )
                      | ( memberP @ SV75 @ SV17 )
                      | ( memberP @ SY213 @ SV17 ) )
                  | ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                          | ( memberP @ SY213 @ SV17 ) )
                      | ( memberP @ ( app @ SV75 @ SY213 ) @ SV17 ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[535]) ).

thf(587,plain,
    ! [SV19: $i,SV76: $i] :
      ( ( ( ~ ( ssItem @ SV76 ) )
        = $true )
      | ( ( ! [SY214: $i] :
              ( ~ ( ssItem @ SY214 )
              | ~ ~ ( ~ ( geq @ SV19 @ SV76 )
                    | ~ ( geq @ SV76 @ SY214 ) )
              | ( geq @ SV19 @ SY214 ) ) )
        = $true )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[536]) ).

thf(588,plain,
    ! [SV20: $i,SV77: $i] :
      ( ( ( ~ ( ssItem @ SV77 ) )
        = $true )
      | ( ( ! [SY215: $i] :
              ( ~ ( ssItem @ SY215 )
              | ~ ~ ( ~ ( leq @ SV20 @ SV77 )
                    | ~ ( leq @ SV77 @ SY215 ) )
              | ( leq @ SV20 @ SY215 ) ) )
        = $true )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[537]) ).

thf(589,plain,
    ! [SV21: $i,SV78: $i] :
      ( ( ( ~ ( ssItem @ SV78 ) )
        = $true )
      | ( ( ( hd @ ( cons @ SV78 @ SV21 ) )
          = SV78 )
        = $true )
      | ( ( ssList @ SV21 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[538]) ).

thf(590,plain,
    ! [SV22: $i] :
      ( ( ( nil != SV22 )
        = $false )
      | ( ( ~ ! [SY159: $i] :
                ~ ~ ( ~ ( ssItem @ SY159 )
                    | ( ( hd @ SV22 )
                     != SY159 ) ) )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[539]) ).

thf(591,plain,
    ! [SV23: $i,SV79: $i] :
      ( ( ( ~ ( ssItem @ SV79 ) )
        = $true )
      | ( ( ! [SY216: $i] :
              ( ~ ( ssList @ SY216 )
              | ~ ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SY216 ) @ SV23 )
                      | ( SV23 = SV79 )
                      | ( memberP @ SY216 @ SV23 ) )
                  | ~ ( ~ ( ( SV23 = SV79 )
                          | ( memberP @ SY216 @ SV23 ) )
                      | ( memberP @ ( cons @ SV79 @ SY216 ) @ SV23 ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[540]) ).

thf(592,plain,
    ! [SV24: $i,SV80: $i] :
      ( ( ( ~ ( ssItem @ SV80 ) )
        = $true )
      | ( ( ! [SY217: $i] :
              ( ~ ( ssItem @ SY217 )
              | ~ ~ ( ~ ( lt @ SV24 @ SV80 )
                    | ~ ( lt @ SV80 @ SY217 ) )
              | ( lt @ SV24 @ SY217 ) ) )
        = $true )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[541]) ).

thf(593,plain,
    ! [SV25: $i,SV81: $i] :
      ( ( ( ~ ( ssItem @ SV81 ) )
        = $true )
      | ( ( ! [SY218: $i] :
              ( ~ ( ssList @ SY218 )
              | ! [SY219: $i] :
                  ( ~ ( ssList @ SY219 )
                  | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SY218 ) @ ( cons @ SV81 @ SY219 ) )
                          | ~ ( ( SV25 != SV81 )
                              | ~ ( frontsegP @ SY218 @ SY219 ) ) )
                      | ~ ( ~ ~ ( ( SV25 != SV81 )
                                | ~ ( frontsegP @ SY218 @ SY219 ) )
                          | ( frontsegP @ ( cons @ SV25 @ SY218 ) @ ( cons @ SV81 @ SY219 ) ) ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[542]) ).

thf(594,plain,
    ! [SV26: $i,SV82: $i] :
      ( ( ( ~ ( ssList @ SV82 ) )
        = $true )
      | ( ( ! [SY220: $i] :
              ( ~ ( ssList @ SY220 )
              | ~ ~ ( ~ ( segmentP @ SV26 @ SV82 )
                    | ~ ( segmentP @ SV82 @ SY220 ) )
              | ( segmentP @ SV26 @ SY220 ) ) )
        = $true )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[543]) ).

thf(595,plain,
    ! [SV27: $i,SV83: $i] :
      ( ( ( ~ ( ssList @ SV83 ) )
        = $true )
      | ( ( ! [SY221: $i] :
              ( ~ ( ssList @ SY221 )
              | ~ ~ ( ~ ( frontsegP @ SV27 @ SV83 )
                    | ~ ( frontsegP @ SV83 @ SY221 ) )
              | ( frontsegP @ SV27 @ SY221 ) ) )
        = $true )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[544]) ).

thf(596,plain,
    ! [SV28: $i,SV84: $i] :
      ( ( ( ~ ( ssItem @ SV84 ) )
        = $true )
      | ( ( ( cons @ SV84 @ SV28 )
         != SV28 )
        = $true )
      | ( ( ssList @ SV28 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[545]) ).

thf(597,plain,
    ! [SV29: $i,SV85: $i] :
      ( ( ( ~ ( ssItem @ SV85 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( lt @ SV29 @ SV85 )
                  | ~ ( ~ ( ( SV29 != SV85 ) )
                      | ~ ( leq @ SV29 @ SV85 ) ) )
              | ~ ( ~ ~ ( ~ ( ( SV29 != SV85 ) )
                        | ~ ( leq @ SV29 @ SV85 ) )
                  | ( lt @ SV29 @ SV85 ) ) ) )
        = $true )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[546]) ).

thf(598,plain,
    ! [SV30: $i,SV86: $i] :
      ( ( ( ~ ( ssItem @ SV86 ) )
        = $true )
      | ( ( ~ ( lt @ SV30 @ SV86 )
          | ~ ( lt @ SV86 @ SV30 ) )
        = $true )
      | ( ( ssItem @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[547]) ).

thf(599,plain,
    ( ( ~ ( ssItem @ sK2_SX0 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[548]) ).

thf(600,plain,
    ( ( ~ ~ ! [SY205: $i] :
              ~ ~ ( ~ ( ssItem @ SY205 )
                  | ~ ( ( sK2_SX0 != SY205 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[548]) ).

thf(601,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( ~ ( ssList @ SV87 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( frontsegP @ SV31 @ SV87 )
                | ~ ( frontsegP @ SV87 @ SV31 ) )
          | ( SV31 = SV87 ) )
        = $true )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[549]) ).

thf(602,plain,
    ( ( ~ ( ssList @ sK4_SY206 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[551]) ).

thf(603,plain,
    ( ( ! [SY222: $i] :
          ( ~ ( ssList @ SY222 )
          | ( sK3_SX0 != SY222 )
          | ( sK1_U != sK4_SY206 )
          | ~ ( neq @ sK3_SX0 @ nil )
          | ( neq @ sK1_U @ nil )
          | ~ ( ~ ! [SY223: $i] :
                    ( ~ ( ssItem @ SY223 )
                    | ( ( cons @ SY223 @ nil )
                     != sK4_SY206 )
                    | ~ ( memberP @ SY222 @ SY223 )
                    | ~ ! [SX4: $i] :
                          ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SX4 )
                                          | ~ ( ( SY223 != SX4 ) ) )
                                    | ~ ( memberP @ SY222 @ SX4 ) )
                              | ~ ( leq @ SY223 @ SX4 ) ) )
              | ~ ( ( nil != SY222 )
                  | ( nil != sK4_SY206 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[551]) ).

thf(604,plain,
    ! [SV35: $i,SV88: $i] :
      ( ( ( ~ ( ssItem @ SV88 ) )
        = $true )
      | ( ( ~ ( gt @ SV35 @ SV88 )
          | ~ ( gt @ SV88 @ SV35 ) )
        = $true )
      | ( ( ssItem @ SV35 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[552]) ).

thf(605,plain,
    ! [SV36: $i,SV89: $i] :
      ( ( ( ~ ( ssList @ SV89 ) )
        = $true )
      | ( ( ! [SY225: $i] :
              ( ~ ( ssList @ SY225 )
              | ( ( app @ ( app @ SV36 @ SV89 ) @ SY225 )
                = ( app @ SV36 @ ( app @ SV89 @ SY225 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV36 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[553]) ).

thf(606,plain,
    ! [SV37: $i,SV90: $i] :
      ( ( ( ~ ( ssItem @ SV90 ) )
        = $true )
      | ( ( ssList @ ( cons @ SV90 @ SV37 ) )
        = $true )
      | ( ( ssList @ SV37 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[554]) ).

thf(607,plain,
    ! [SV38: $i,SV91: $i] :
      ( ( ( ~ ( ssList @ SV91 ) )
        = $true )
      | ( ( ! [SY226: $i] :
              ( ~ ( ssList @ SY226 )
              | ~ ~ ( ~ ( rearsegP @ SV38 @ SV91 )
                    | ~ ( rearsegP @ SV91 @ SY226 ) )
              | ( rearsegP @ SV38 @ SY226 ) ) )
        = $true )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[555]) ).

thf(608,plain,
    ! [SV39: $i,SV92: $i] :
      ( ( ( ~ ( ssList @ SV92 ) )
        = $true )
      | ( ( ! [SY227: $i] :
              ( ~ ( ssItem @ SY227 )
              | ( ( cons @ SY227 @ ( app @ SV92 @ SV39 ) )
                = ( app @ ( cons @ SY227 @ SV92 ) @ SV39 ) ) ) )
        = $true )
      | ( ( ssList @ SV39 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[556]) ).

thf(609,plain,
    ! [SV41: $i,SV93: $i] :
      ( ( ( ~ ( ssItem @ SV93 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( geq @ SV41 @ SV93 )
                | ~ ( geq @ SV93 @ SV41 ) )
          | ( SV41 = SV93 ) )
        = $true )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[557]) ).

thf(610,plain,
    ! [SV42: $i] :
      ( ( ( ! [SY184: $i] :
              ~ ~ ( ~ ( ssList @ SY184 )
                  | ~ ~ ! [SY185: $i] :
                          ~ ~ ( ~ ( ssItem @ SY185 )
                              | ( ( cons @ SY185 @ SY184 )
                               != SV42 ) ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[558]) ).

thf(611,plain,
    ! [SV44: $i,SV94: $i] :
      ( ( ( ~ ( ssItem @ SV94 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( geq @ SV44 @ SV94 )
                  | ( leq @ SV94 @ SV44 ) )
              | ~ ( ~ ( leq @ SV94 @ SV44 )
                  | ( geq @ SV44 @ SV94 ) ) ) )
        = $true )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[559]) ).

thf(612,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( ~ ( frontsegP @ nil @ SV47 )
              | ( nil = SV47 ) ) )
        = $false )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[560]) ).

thf(613,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( ( nil != SV47 )
              | ( frontsegP @ nil @ SV47 ) ) )
        = $false )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[560]) ).

thf(614,plain,
    ! [SV48: $i,SV95: $i] :
      ( ( ( ~ ( ssItem @ SV95 ) )
        = $true )
      | ( ( ( tl @ ( cons @ SV95 @ SV48 ) )
          = SV48 )
        = $true )
      | ( ( ssList @ SV48 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[561]) ).

thf(615,plain,
    ! [SV49: $i,SV96: $i] :
      ( ( ( ~ ( ssList @ SV96 ) )
        = $true )
      | ( ( ! [SY228: $i] :
              ( ~ ( ssItem @ SY228 )
              | ! [SY229: $i] :
                  ( ~ ( ssItem @ SY229 )
                  | ( ( cons @ SY228 @ SV49 )
                   != ( cons @ SY229 @ SV96 ) )
                  | ~ ( ( SY228 != SY229 )
                      | ( SV96 != SV49 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[562]) ).

thf(616,plain,
    ! [SV51: $i] :
      ( ( ( nil != SV51 )
        = $false )
      | ( ( ~ ! [SY191: $i] :
                ~ ~ ( ~ ( ssList @ SY191 )
                    | ( ( tl @ SV51 )
                     != SY191 ) ) )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[564]) ).

thf(617,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( ~ ( singletonP @ SV52 )
              | ~ ! [SY192: $i] :
                    ~ ~ ( ~ ( ssItem @ SY192 )
                        | ( ( cons @ SY192 @ nil )
                         != SV52 ) ) ) )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[565]) ).

thf(618,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( ~ ~ ! [SY193: $i] :
                      ~ ~ ( ~ ( ssItem @ SY193 )
                          | ( ( cons @ SY193 @ nil )
                           != SV52 ) )
              | ( singletonP @ SV52 ) ) )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[565]) ).

thf(619,plain,
    ! [SV53: $i,SV97: $i] :
      ( ( ( ~ ( ssList @ SV97 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( rearsegP @ SV53 @ SV97 )
                | ~ ( rearsegP @ SV97 @ SV53 ) )
          | ( SV53 = SV97 ) )
        = $true )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[566]) ).

thf(620,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ~ ( ssList @ SV98 ) )
        = $true )
      | ( ( ~ ( ~ ( ( nil
                   != ( app @ SV54 @ SV98 ) )
                  | ~ ( ( nil != SV98 )
                      | ( nil != SV54 ) ) )
              | ~ ( ~ ~ ( ( nil != SV98 )
                        | ( nil != SV54 ) )
                  | ( nil
                    = ( app @ SV54 @ SV98 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[567]) ).

thf(621,plain,
    ! [SV58: $i] :
      ( ( ( ~ ( ~ ( rearsegP @ nil @ SV58 )
              | ( nil = SV58 ) ) )
        = $false )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[569]) ).

thf(622,plain,
    ! [SV58: $i] :
      ( ( ( ~ ( ( nil != SV58 )
              | ( rearsegP @ nil @ SV58 ) ) )
        = $false )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[569]) ).

thf(623,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ( ssItem @ SV99 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( memberP @ SV59 @ SV99 )
                  | ~ ! [SY230: $i] :
                        ~ ~ ( ~ ( ssList @ SY230 )
                            | ~ ~ ! [SY231: $i] :
                                    ~ ~ ( ~ ( ssList @ SY231 )
                                        | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                         != SV59 ) ) ) )
              | ~ ( ~ ~ ! [SY232: $i] :
                          ~ ~ ( ~ ( ssList @ SY232 )
                              | ~ ~ ! [SY233: $i] :
                                      ~ ~ ( ~ ( ssList @ SY233 )
                                          | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                           != SV59 ) ) )
                  | ( memberP @ SV59 @ SV99 ) ) ) )
        = $true )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[570]) ).

thf(624,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( ~ ( segmentP @ nil @ SV60 )
              | ( nil = SV60 ) ) )
        = $false )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[571]) ).

thf(625,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( ( nil != SV60 )
              | ( segmentP @ nil @ SV60 ) ) )
        = $false )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[571]) ).

thf(626,plain,
    ! [SV61: $i] :
      ( ( ( nil != SV61 )
        = $false )
      | ( ( ssItem @ ( hd @ SV61 ) )
        = $true )
      | ( ( ssList @ SV61 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[572]) ).

thf(627,plain,
    ! [SV63: $i,SV100: $i] :
      ( ( ( ~ ( ssItem @ SV100 ) )
        = $true )
      | ( ( nil
         != ( cons @ SV100 @ SV63 ) )
        = $true )
      | ( ( ssList @ SV63 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[573]) ).

thf(628,plain,
    ! [SV64: $i,SV101: $i] :
      ( ( ( ~ ( ssList @ SV101 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( neq @ SV64 @ SV101 )
                  | ( SV64 != SV101 ) )
              | ~ ( ~ ( ( SV64 != SV101 ) )
                  | ( neq @ SV64 @ SV101 ) ) ) )
        = $true )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[574]) ).

thf(629,plain,
    ! [SV65: $i,SV102: $i] :
      ( ( ( ~ ( ssList @ SV102 ) )
        = $true )
      | ( ( ! [SY234: $i] :
              ( ~ ( ssList @ SY234 )
              | ( ( app @ SV102 @ SY234 )
               != ( app @ SV102 @ SV65 ) )
              | ( SY234 = SV65 ) ) )
        = $true )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[575]) ).

thf(630,plain,
    ! [SV1: $i,SV66: $i] :
      ( ( ( ssList @ SV66 )
        = $false )
      | ( ( ! [SY210: $i] :
              ( ~ ( ssList @ SY210 )
              | ( ( app @ SY210 @ SV66 )
               != ( app @ SV1 @ SV66 ) )
              | ( SY210 = SV1 ) ) )
        = $true )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(631,plain,
    ! [SV4: $i,SV67: $i] :
      ( ( ( ssItem @ SV67 )
        = $false )
      | ( ( ! [SY211: $i] :
              ( ~ ( ssItem @ SY211 )
              | ~ ~ ( ~ ( leq @ SV4 @ SV67 )
                    | ~ ( lt @ SV67 @ SY211 ) )
              | ( lt @ SV4 @ SY211 ) ) )
        = $true )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[577]) ).

thf(632,plain,
    ! [SV5: $i,SV68: $i] :
      ( ( ( ssItem @ SV68 )
        = $false )
      | ( ( ! [SY212: $i] :
              ( ~ ( ssItem @ SY212 )
              | ~ ~ ( ~ ( gt @ SV5 @ SV68 )
                    | ~ ( gt @ SV68 @ SY212 ) )
              | ( gt @ SV5 @ SY212 ) ) )
        = $true )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[578]) ).

thf(633,plain,
    ! [SV7: $i,SV69: $i] :
      ( ( ( ssList @ SV69 )
        = $false )
      | ( ( ~ ~ ( ~ ( segmentP @ SV7 @ SV69 )
                | ~ ( segmentP @ SV69 @ SV7 ) )
          | ( SV7 = SV69 ) )
        = $true )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[579]) ).

thf(634,plain,
    ! [SV8: $i] :
      ( ( ( nil = SV8 )
        = $true )
      | ( ( ssList @ ( tl @ SV8 ) )
        = $true )
      | ( ( ssList @ SV8 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[580]) ).

thf(635,plain,
    ! [SV9: $i,SV70: $i] :
      ( ( ( ssItem @ SV70 )
        = $false )
      | ( ( ( cons @ SV70 @ SV9 )
          = ( app @ ( cons @ SV70 @ nil ) @ SV9 ) )
        = $true )
      | ( ( ssList @ SV9 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[581]) ).

thf(636,plain,
    ! [SV11: $i,SV71: $i] :
      ( ( ( ssItem @ SV71 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( neq @ SV11 @ SV71 )
                  | ( SV11 != SV71 ) )
              | ~ ( ~ ( ( SV11 != SV71 ) )
                  | ( neq @ SV11 @ SV71 ) ) ) )
        = $true )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[582]) ).

thf(637,plain,
    ! [SV12: $i,SV72: $i] :
      ( ( ( ssItem @ SV72 )
        = $false )
      | ( ( ~ ~ ( ~ ( leq @ SV12 @ SV72 )
                | ~ ( leq @ SV72 @ SV12 ) )
          | ( SV12 = SV72 ) )
        = $true )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[583]) ).

thf(638,plain,
    ! [SV13: $i,SV73: $i] :
      ( ( ( ssList @ SV73 )
        = $false )
      | ( ( ssList @ ( app @ SV13 @ SV73 ) )
        = $true )
      | ( ( ssList @ SV13 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[584]) ).

thf(639,plain,
    ! [SV15: $i,SV74: $i] :
      ( ( ( ssItem @ SV74 )
        = $false )
      | ( ( ~ ( leq @ SV15 @ SV74 )
          | ( SV15 = SV74 )
          | ( lt @ SV15 @ SV74 ) )
        = $true )
      | ( ( ssItem @ SV15 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[585]) ).

thf(640,plain,
    ! [SV17: $i,SV75: $i] :
      ( ( ( ssList @ SV75 )
        = $false )
      | ( ( ! [SY213: $i] :
              ( ~ ( ssList @ SY213 )
              | ~ ( ~ ( ~ ( memberP @ ( app @ SV75 @ SY213 ) @ SV17 )
                      | ( memberP @ SV75 @ SV17 )
                      | ( memberP @ SY213 @ SV17 ) )
                  | ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                          | ( memberP @ SY213 @ SV17 ) )
                      | ( memberP @ ( app @ SV75 @ SY213 ) @ SV17 ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[586]) ).

thf(641,plain,
    ! [SV19: $i,SV76: $i] :
      ( ( ( ssItem @ SV76 )
        = $false )
      | ( ( ! [SY214: $i] :
              ( ~ ( ssItem @ SY214 )
              | ~ ~ ( ~ ( geq @ SV19 @ SV76 )
                    | ~ ( geq @ SV76 @ SY214 ) )
              | ( geq @ SV19 @ SY214 ) ) )
        = $true )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[587]) ).

thf(642,plain,
    ! [SV20: $i,SV77: $i] :
      ( ( ( ssItem @ SV77 )
        = $false )
      | ( ( ! [SY215: $i] :
              ( ~ ( ssItem @ SY215 )
              | ~ ~ ( ~ ( leq @ SV20 @ SV77 )
                    | ~ ( leq @ SV77 @ SY215 ) )
              | ( leq @ SV20 @ SY215 ) ) )
        = $true )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[588]) ).

thf(643,plain,
    ! [SV21: $i,SV78: $i] :
      ( ( ( ssItem @ SV78 )
        = $false )
      | ( ( ( hd @ ( cons @ SV78 @ SV21 ) )
          = SV78 )
        = $true )
      | ( ( ssList @ SV21 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[589]) ).

thf(644,plain,
    ! [SV22: $i] :
      ( ( ( nil = SV22 )
        = $true )
      | ( ( ~ ! [SY159: $i] :
                ~ ~ ( ~ ( ssItem @ SY159 )
                    | ( ( hd @ SV22 )
                     != SY159 ) ) )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[590]) ).

thf(645,plain,
    ! [SV23: $i,SV79: $i] :
      ( ( ( ssItem @ SV79 )
        = $false )
      | ( ( ! [SY216: $i] :
              ( ~ ( ssList @ SY216 )
              | ~ ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SY216 ) @ SV23 )
                      | ( SV23 = SV79 )
                      | ( memberP @ SY216 @ SV23 ) )
                  | ~ ( ~ ( ( SV23 = SV79 )
                          | ( memberP @ SY216 @ SV23 ) )
                      | ( memberP @ ( cons @ SV79 @ SY216 ) @ SV23 ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[591]) ).

thf(646,plain,
    ! [SV24: $i,SV80: $i] :
      ( ( ( ssItem @ SV80 )
        = $false )
      | ( ( ! [SY217: $i] :
              ( ~ ( ssItem @ SY217 )
              | ~ ~ ( ~ ( lt @ SV24 @ SV80 )
                    | ~ ( lt @ SV80 @ SY217 ) )
              | ( lt @ SV24 @ SY217 ) ) )
        = $true )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[592]) ).

thf(647,plain,
    ! [SV25: $i,SV81: $i] :
      ( ( ( ssItem @ SV81 )
        = $false )
      | ( ( ! [SY218: $i] :
              ( ~ ( ssList @ SY218 )
              | ! [SY219: $i] :
                  ( ~ ( ssList @ SY219 )
                  | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SY218 ) @ ( cons @ SV81 @ SY219 ) )
                          | ~ ( ( SV25 != SV81 )
                              | ~ ( frontsegP @ SY218 @ SY219 ) ) )
                      | ~ ( ~ ~ ( ( SV25 != SV81 )
                                | ~ ( frontsegP @ SY218 @ SY219 ) )
                          | ( frontsegP @ ( cons @ SV25 @ SY218 ) @ ( cons @ SV81 @ SY219 ) ) ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[593]) ).

thf(648,plain,
    ! [SV26: $i,SV82: $i] :
      ( ( ( ssList @ SV82 )
        = $false )
      | ( ( ! [SY220: $i] :
              ( ~ ( ssList @ SY220 )
              | ~ ~ ( ~ ( segmentP @ SV26 @ SV82 )
                    | ~ ( segmentP @ SV82 @ SY220 ) )
              | ( segmentP @ SV26 @ SY220 ) ) )
        = $true )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[594]) ).

thf(649,plain,
    ! [SV27: $i,SV83: $i] :
      ( ( ( ssList @ SV83 )
        = $false )
      | ( ( ! [SY221: $i] :
              ( ~ ( ssList @ SY221 )
              | ~ ~ ( ~ ( frontsegP @ SV27 @ SV83 )
                    | ~ ( frontsegP @ SV83 @ SY221 ) )
              | ( frontsegP @ SV27 @ SY221 ) ) )
        = $true )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[595]) ).

thf(650,plain,
    ! [SV28: $i,SV84: $i] :
      ( ( ( ssItem @ SV84 )
        = $false )
      | ( ( ( cons @ SV84 @ SV28 )
         != SV28 )
        = $true )
      | ( ( ssList @ SV28 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[596]) ).

thf(651,plain,
    ! [SV29: $i,SV85: $i] :
      ( ( ( ssItem @ SV85 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( lt @ SV29 @ SV85 )
                  | ~ ( ~ ( ( SV29 != SV85 ) )
                      | ~ ( leq @ SV29 @ SV85 ) ) )
              | ~ ( ~ ~ ( ~ ( ( SV29 != SV85 ) )
                        | ~ ( leq @ SV29 @ SV85 ) )
                  | ( lt @ SV29 @ SV85 ) ) ) )
        = $true )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[597]) ).

thf(652,plain,
    ! [SV30: $i,SV86: $i] :
      ( ( ( ssItem @ SV86 )
        = $false )
      | ( ( ~ ( lt @ SV30 @ SV86 )
          | ~ ( lt @ SV86 @ SV30 ) )
        = $true )
      | ( ( ssItem @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[598]) ).

thf(653,plain,
    ( ( ssItem @ sK2_SX0 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[599]) ).

thf(654,plain,
    ( ( ~ ! [SY205: $i] :
            ~ ~ ( ~ ( ssItem @ SY205 )
                | ~ ( ( sK2_SX0 != SY205 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[600]) ).

thf(655,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( ssList @ SV87 )
        = $false )
      | ( ( ~ ~ ( ~ ( frontsegP @ SV31 @ SV87 )
                | ~ ( frontsegP @ SV87 @ SV31 ) )
          | ( SV31 = SV87 ) )
        = $true )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[601]) ).

thf(656,plain,
    ( ( ssList @ sK4_SY206 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[602]) ).

thf(657,plain,
    ( ( ~ ( ssList @ sK5_SY222 )
      | ( sK3_SX0 != sK5_SY222 )
      | ( sK1_U != sK4_SY206 )
      | ~ ( neq @ sK3_SX0 @ nil )
      | ( neq @ sK1_U @ nil )
      | ~ ( ~ ! [SY235: $i] :
                ( ~ ( ssItem @ SY235 )
                | ( ( cons @ SY235 @ nil )
                 != sK4_SY206 )
                | ~ ( memberP @ sK5_SY222 @ SY235 )
                | ~ ! [SY236: $i] :
                      ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY236 )
                                      | ~ ( ( SY235 != SY236 ) ) )
                                | ~ ( memberP @ sK5_SY222 @ SY236 ) )
                          | ~ ( leq @ SY235 @ SY236 ) ) )
          | ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[603]) ).

thf(658,plain,
    ! [SV35: $i,SV88: $i] :
      ( ( ( ssItem @ SV88 )
        = $false )
      | ( ( ~ ( gt @ SV35 @ SV88 )
          | ~ ( gt @ SV88 @ SV35 ) )
        = $true )
      | ( ( ssItem @ SV35 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[604]) ).

thf(659,plain,
    ! [SV36: $i,SV89: $i] :
      ( ( ( ssList @ SV89 )
        = $false )
      | ( ( ! [SY225: $i] :
              ( ~ ( ssList @ SY225 )
              | ( ( app @ ( app @ SV36 @ SV89 ) @ SY225 )
                = ( app @ SV36 @ ( app @ SV89 @ SY225 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV36 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[605]) ).

thf(660,plain,
    ! [SV37: $i,SV90: $i] :
      ( ( ( ssItem @ SV90 )
        = $false )
      | ( ( ssList @ ( cons @ SV90 @ SV37 ) )
        = $true )
      | ( ( ssList @ SV37 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[606]) ).

thf(661,plain,
    ! [SV38: $i,SV91: $i] :
      ( ( ( ssList @ SV91 )
        = $false )
      | ( ( ! [SY226: $i] :
              ( ~ ( ssList @ SY226 )
              | ~ ~ ( ~ ( rearsegP @ SV38 @ SV91 )
                    | ~ ( rearsegP @ SV91 @ SY226 ) )
              | ( rearsegP @ SV38 @ SY226 ) ) )
        = $true )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[607]) ).

thf(662,plain,
    ! [SV39: $i,SV92: $i] :
      ( ( ( ssList @ SV92 )
        = $false )
      | ( ( ! [SY227: $i] :
              ( ~ ( ssItem @ SY227 )
              | ( ( cons @ SY227 @ ( app @ SV92 @ SV39 ) )
                = ( app @ ( cons @ SY227 @ SV92 ) @ SV39 ) ) ) )
        = $true )
      | ( ( ssList @ SV39 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[608]) ).

thf(663,plain,
    ! [SV41: $i,SV93: $i] :
      ( ( ( ssItem @ SV93 )
        = $false )
      | ( ( ~ ~ ( ~ ( geq @ SV41 @ SV93 )
                | ~ ( geq @ SV93 @ SV41 ) )
          | ( SV41 = SV93 ) )
        = $true )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[609]) ).

thf(664,plain,
    ! [SV42: $i] :
      ( ( ( ~ ~ ( ~ ( ssList @ ( sK6_SY184 @ SV42 ) )
                | ~ ~ ! [SY237: $i] :
                        ~ ~ ( ~ ( ssItem @ SY237 )
                            | ( ( cons @ SY237 @ ( sK6_SY184 @ SV42 ) )
                             != SV42 ) ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[610]) ).

thf(665,plain,
    ! [SV44: $i,SV94: $i] :
      ( ( ( ssItem @ SV94 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( geq @ SV44 @ SV94 )
                  | ( leq @ SV94 @ SV44 ) )
              | ~ ( ~ ( leq @ SV94 @ SV44 )
                  | ( geq @ SV44 @ SV94 ) ) ) )
        = $true )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[611]) ).

thf(666,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( frontsegP @ nil @ SV47 )
          | ( nil = SV47 ) )
        = $true )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[612]) ).

thf(667,plain,
    ! [SV47: $i] :
      ( ( ( ( nil != SV47 )
          | ( frontsegP @ nil @ SV47 ) )
        = $true )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[613]) ).

thf(668,plain,
    ! [SV48: $i,SV95: $i] :
      ( ( ( ssItem @ SV95 )
        = $false )
      | ( ( ( tl @ ( cons @ SV95 @ SV48 ) )
          = SV48 )
        = $true )
      | ( ( ssList @ SV48 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[614]) ).

thf(669,plain,
    ! [SV49: $i,SV96: $i] :
      ( ( ( ssList @ SV96 )
        = $false )
      | ( ( ! [SY228: $i] :
              ( ~ ( ssItem @ SY228 )
              | ! [SY229: $i] :
                  ( ~ ( ssItem @ SY229 )
                  | ( ( cons @ SY228 @ SV49 )
                   != ( cons @ SY229 @ SV96 ) )
                  | ~ ( ( SY228 != SY229 )
                      | ( SV96 != SV49 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[615]) ).

thf(670,plain,
    ! [SV51: $i] :
      ( ( ( nil = SV51 )
        = $true )
      | ( ( ~ ! [SY191: $i] :
                ~ ~ ( ~ ( ssList @ SY191 )
                    | ( ( tl @ SV51 )
                     != SY191 ) ) )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[616]) ).

thf(671,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( singletonP @ SV52 )
          | ~ ! [SY192: $i] :
                ~ ~ ( ~ ( ssItem @ SY192 )
                    | ( ( cons @ SY192 @ nil )
                     != SV52 ) ) )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[617]) ).

thf(672,plain,
    ! [SV52: $i] :
      ( ( ( ~ ~ ! [SY193: $i] :
                  ~ ~ ( ~ ( ssItem @ SY193 )
                      | ( ( cons @ SY193 @ nil )
                       != SV52 ) )
          | ( singletonP @ SV52 ) )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[618]) ).

thf(673,plain,
    ! [SV53: $i,SV97: $i] :
      ( ( ( ssList @ SV97 )
        = $false )
      | ( ( ~ ~ ( ~ ( rearsegP @ SV53 @ SV97 )
                | ~ ( rearsegP @ SV97 @ SV53 ) )
          | ( SV53 = SV97 ) )
        = $true )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[619]) ).

thf(674,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ssList @ SV98 )
        = $false )
      | ( ( ~ ( ~ ( ( nil
                   != ( app @ SV54 @ SV98 ) )
                  | ~ ( ( nil != SV98 )
                      | ( nil != SV54 ) ) )
              | ~ ( ~ ~ ( ( nil != SV98 )
                        | ( nil != SV54 ) )
                  | ( nil
                    = ( app @ SV54 @ SV98 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[620]) ).

thf(675,plain,
    ! [SV58: $i] :
      ( ( ( ~ ( rearsegP @ nil @ SV58 )
          | ( nil = SV58 ) )
        = $true )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[621]) ).

thf(676,plain,
    ! [SV58: $i] :
      ( ( ( ( nil != SV58 )
          | ( rearsegP @ nil @ SV58 ) )
        = $true )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[622]) ).

thf(677,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ssItem @ SV99 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( memberP @ SV59 @ SV99 )
                  | ~ ! [SY230: $i] :
                        ~ ~ ( ~ ( ssList @ SY230 )
                            | ~ ~ ! [SY231: $i] :
                                    ~ ~ ( ~ ( ssList @ SY231 )
                                        | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                         != SV59 ) ) ) )
              | ~ ( ~ ~ ! [SY232: $i] :
                          ~ ~ ( ~ ( ssList @ SY232 )
                              | ~ ~ ! [SY233: $i] :
                                      ~ ~ ( ~ ( ssList @ SY233 )
                                          | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                           != SV59 ) ) )
                  | ( memberP @ SV59 @ SV99 ) ) ) )
        = $true )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[623]) ).

thf(678,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( segmentP @ nil @ SV60 )
          | ( nil = SV60 ) )
        = $true )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[624]) ).

thf(679,plain,
    ! [SV60: $i] :
      ( ( ( ( nil != SV60 )
          | ( segmentP @ nil @ SV60 ) )
        = $true )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[625]) ).

thf(680,plain,
    ! [SV61: $i] :
      ( ( ( nil = SV61 )
        = $true )
      | ( ( ssItem @ ( hd @ SV61 ) )
        = $true )
      | ( ( ssList @ SV61 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[626]) ).

thf(681,plain,
    ! [SV63: $i,SV100: $i] :
      ( ( ( ssItem @ SV100 )
        = $false )
      | ( ( nil
         != ( cons @ SV100 @ SV63 ) )
        = $true )
      | ( ( ssList @ SV63 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[627]) ).

thf(682,plain,
    ! [SV64: $i,SV101: $i] :
      ( ( ( ssList @ SV101 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( neq @ SV64 @ SV101 )
                  | ( SV64 != SV101 ) )
              | ~ ( ~ ( ( SV64 != SV101 ) )
                  | ( neq @ SV64 @ SV101 ) ) ) )
        = $true )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[628]) ).

thf(683,plain,
    ! [SV65: $i,SV102: $i] :
      ( ( ( ssList @ SV102 )
        = $false )
      | ( ( ! [SY234: $i] :
              ( ~ ( ssList @ SY234 )
              | ( ( app @ SV102 @ SY234 )
               != ( app @ SV102 @ SV65 ) )
              | ( SY234 = SV65 ) ) )
        = $true )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[629]) ).

thf(684,plain,
    ! [SV1: $i,SV66: $i,SV103: $i] :
      ( ( ( ~ ( ssList @ SV103 )
          | ( ( app @ SV103 @ SV66 )
           != ( app @ SV1 @ SV66 ) )
          | ( SV103 = SV1 ) )
        = $true )
      | ( ( ssList @ SV66 )
        = $false )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[630]) ).

thf(685,plain,
    ! [SV67: $i,SV4: $i,SV104: $i] :
      ( ( ( ~ ( ssItem @ SV104 )
          | ~ ~ ( ~ ( leq @ SV4 @ SV67 )
                | ~ ( lt @ SV67 @ SV104 ) )
          | ( lt @ SV4 @ SV104 ) )
        = $true )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[631]) ).

thf(686,plain,
    ! [SV68: $i,SV5: $i,SV105: $i] :
      ( ( ( ~ ( ssItem @ SV105 )
          | ~ ~ ( ~ ( gt @ SV5 @ SV68 )
                | ~ ( gt @ SV68 @ SV105 ) )
          | ( gt @ SV5 @ SV105 ) )
        = $true )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[632]) ).

thf(687,plain,
    ! [SV69: $i,SV7: $i] :
      ( ( ( ~ ~ ( ~ ( segmentP @ SV7 @ SV69 )
                | ~ ( segmentP @ SV69 @ SV7 ) ) )
        = $true )
      | ( ( SV7 = SV69 )
        = $true )
      | ( ( ssList @ SV69 )
        = $false )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[633]) ).

thf(688,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( neq @ SV11 @ SV71 )
              | ( SV11 != SV71 ) )
          | ~ ( ~ ( ( SV11 != SV71 ) )
              | ( neq @ SV11 @ SV71 ) ) )
        = $false )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[636]) ).

thf(689,plain,
    ! [SV72: $i,SV12: $i] :
      ( ( ( ~ ~ ( ~ ( leq @ SV12 @ SV72 )
                | ~ ( leq @ SV72 @ SV12 ) ) )
        = $true )
      | ( ( SV12 = SV72 )
        = $true )
      | ( ( ssItem @ SV72 )
        = $false )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[637]) ).

thf(690,plain,
    ! [SV74: $i,SV15: $i] :
      ( ( ( ~ ( leq @ SV15 @ SV74 ) )
        = $true )
      | ( ( ( SV15 = SV74 )
          | ( lt @ SV15 @ SV74 ) )
        = $true )
      | ( ( ssItem @ SV74 )
        = $false )
      | ( ( ssItem @ SV15 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[639]) ).

thf(691,plain,
    ! [SV17: $i,SV75: $i,SV106: $i] :
      ( ( ( ~ ( ssList @ SV106 )
          | ~ ( ~ ( ~ ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
                  | ( memberP @ SV75 @ SV17 )
                  | ( memberP @ SV106 @ SV17 ) )
              | ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                      | ( memberP @ SV106 @ SV17 ) )
                  | ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 ) ) ) )
        = $true )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[640]) ).

thf(692,plain,
    ! [SV76: $i,SV19: $i,SV107: $i] :
      ( ( ( ~ ( ssItem @ SV107 )
          | ~ ~ ( ~ ( geq @ SV19 @ SV76 )
                | ~ ( geq @ SV76 @ SV107 ) )
          | ( geq @ SV19 @ SV107 ) )
        = $true )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[641]) ).

thf(693,plain,
    ! [SV77: $i,SV20: $i,SV108: $i] :
      ( ( ( ~ ( ssItem @ SV108 )
          | ~ ~ ( ~ ( leq @ SV20 @ SV77 )
                | ~ ( leq @ SV77 @ SV108 ) )
          | ( leq @ SV20 @ SV108 ) )
        = $true )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[642]) ).

thf(694,plain,
    ! [SV22: $i] :
      ( ( ( ! [SY159: $i] :
              ~ ~ ( ~ ( ssItem @ SY159 )
                  | ( ( hd @ SV22 )
                   != SY159 ) ) )
        = $false )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[644]) ).

thf(695,plain,
    ! [SV23: $i,SV79: $i,SV109: $i] :
      ( ( ( ~ ( ssList @ SV109 )
          | ~ ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
                  | ( SV23 = SV79 )
                  | ( memberP @ SV109 @ SV23 ) )
              | ~ ( ~ ( ( SV23 = SV79 )
                      | ( memberP @ SV109 @ SV23 ) )
                  | ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 ) ) ) )
        = $true )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[645]) ).

thf(696,plain,
    ! [SV80: $i,SV24: $i,SV110: $i] :
      ( ( ( ~ ( ssItem @ SV110 )
          | ~ ~ ( ~ ( lt @ SV24 @ SV80 )
                | ~ ( lt @ SV80 @ SV110 ) )
          | ( lt @ SV24 @ SV110 ) )
        = $true )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[646]) ).

thf(697,plain,
    ! [SV81: $i,SV25: $i,SV111: $i] :
      ( ( ( ~ ( ssList @ SV111 )
          | ! [SY238: $i] :
              ( ~ ( ssList @ SY238 )
              | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SY238 ) )
                      | ~ ( ( SV25 != SV81 )
                          | ~ ( frontsegP @ SV111 @ SY238 ) ) )
                  | ~ ( ~ ~ ( ( SV25 != SV81 )
                            | ~ ( frontsegP @ SV111 @ SY238 ) )
                      | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SY238 ) ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[647]) ).

thf(698,plain,
    ! [SV82: $i,SV26: $i,SV112: $i] :
      ( ( ( ~ ( ssList @ SV112 )
          | ~ ~ ( ~ ( segmentP @ SV26 @ SV82 )
                | ~ ( segmentP @ SV82 @ SV112 ) )
          | ( segmentP @ SV26 @ SV112 ) )
        = $true )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[648]) ).

thf(699,plain,
    ! [SV83: $i,SV27: $i,SV113: $i] :
      ( ( ( ~ ( ssList @ SV113 )
          | ~ ~ ( ~ ( frontsegP @ SV27 @ SV83 )
                | ~ ( frontsegP @ SV83 @ SV113 ) )
          | ( frontsegP @ SV27 @ SV113 ) )
        = $true )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[649]) ).

thf(700,plain,
    ! [SV28: $i,SV84: $i] :
      ( ( ( ( cons @ SV84 @ SV28 )
          = SV28 )
        = $false )
      | ( ( ssItem @ SV84 )
        = $false )
      | ( ( ssList @ SV28 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[650]) ).

thf(701,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( lt @ SV29 @ SV85 )
              | ~ ( ~ ( ( SV29 != SV85 ) )
                  | ~ ( leq @ SV29 @ SV85 ) ) )
          | ~ ( ~ ~ ( ~ ( ( SV29 != SV85 ) )
                    | ~ ( leq @ SV29 @ SV85 ) )
              | ( lt @ SV29 @ SV85 ) ) )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[651]) ).

thf(702,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ( ~ ( lt @ SV30 @ SV86 ) )
        = $true )
      | ( ( ~ ( lt @ SV86 @ SV30 ) )
        = $true )
      | ( ( ssItem @ SV86 )
        = $false )
      | ( ( ssItem @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[652]) ).

thf(703,plain,
    ( ( ! [SY205: $i] :
          ~ ~ ( ~ ( ssItem @ SY205 )
              | ~ ( ( sK2_SX0 != SY205 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[654]) ).

thf(704,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( ~ ~ ( ~ ( frontsegP @ SV31 @ SV87 )
                | ~ ( frontsegP @ SV87 @ SV31 ) ) )
        = $true )
      | ( ( SV31 = SV87 )
        = $true )
      | ( ( ssList @ SV87 )
        = $false )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[655]) ).

thf(705,plain,
    ( ( ~ ( ssList @ sK5_SY222 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[657]) ).

thf(706,plain,
    ( ( ( sK3_SX0 != sK5_SY222 )
      | ( sK1_U != sK4_SY206 )
      | ~ ( neq @ sK3_SX0 @ nil )
      | ( neq @ sK1_U @ nil )
      | ~ ( ~ ! [SY235: $i] :
                ( ~ ( ssItem @ SY235 )
                | ( ( cons @ SY235 @ nil )
                 != sK4_SY206 )
                | ~ ( memberP @ sK5_SY222 @ SY235 )
                | ~ ! [SY236: $i] :
                      ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY236 )
                                      | ~ ( ( SY235 != SY236 ) ) )
                                | ~ ( memberP @ sK5_SY222 @ SY236 ) )
                          | ~ ( leq @ SY235 @ SY236 ) ) )
          | ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[657]) ).

thf(707,plain,
    ! [SV88: $i,SV35: $i] :
      ( ( ( ~ ( gt @ SV35 @ SV88 ) )
        = $true )
      | ( ( ~ ( gt @ SV88 @ SV35 ) )
        = $true )
      | ( ( ssItem @ SV88 )
        = $false )
      | ( ( ssItem @ SV35 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[658]) ).

thf(708,plain,
    ! [SV89: $i,SV36: $i,SV114: $i] :
      ( ( ( ~ ( ssList @ SV114 )
          | ( ( app @ ( app @ SV36 @ SV89 ) @ SV114 )
            = ( app @ SV36 @ ( app @ SV89 @ SV114 ) ) ) )
        = $true )
      | ( ( ssList @ SV89 )
        = $false )
      | ( ( ssList @ SV36 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[659]) ).

thf(709,plain,
    ! [SV91: $i,SV38: $i,SV115: $i] :
      ( ( ( ~ ( ssList @ SV115 )
          | ~ ~ ( ~ ( rearsegP @ SV38 @ SV91 )
                | ~ ( rearsegP @ SV91 @ SV115 ) )
          | ( rearsegP @ SV38 @ SV115 ) )
        = $true )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[661]) ).

thf(710,plain,
    ! [SV39: $i,SV92: $i,SV116: $i] :
      ( ( ( ~ ( ssItem @ SV116 )
          | ( ( cons @ SV116 @ ( app @ SV92 @ SV39 ) )
            = ( app @ ( cons @ SV116 @ SV92 ) @ SV39 ) ) )
        = $true )
      | ( ( ssList @ SV92 )
        = $false )
      | ( ( ssList @ SV39 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[662]) ).

thf(711,plain,
    ! [SV93: $i,SV41: $i] :
      ( ( ( ~ ~ ( ~ ( geq @ SV41 @ SV93 )
                | ~ ( geq @ SV93 @ SV41 ) ) )
        = $true )
      | ( ( SV41 = SV93 )
        = $true )
      | ( ( ssItem @ SV93 )
        = $false )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[663]) ).

thf(712,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( ~ ( ssList @ ( sK6_SY184 @ SV42 ) )
              | ~ ~ ! [SY237: $i] :
                      ~ ~ ( ~ ( ssItem @ SY237 )
                          | ( ( cons @ SY237 @ ( sK6_SY184 @ SV42 ) )
                           != SV42 ) ) ) )
        = $true )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[664]) ).

thf(713,plain,
    ! [SV94: $i,SV44: $i] :
      ( ( ( ~ ( ~ ( geq @ SV44 @ SV94 )
              | ( leq @ SV94 @ SV44 ) )
          | ~ ( ~ ( leq @ SV94 @ SV44 )
              | ( geq @ SV44 @ SV94 ) ) )
        = $false )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[665]) ).

thf(714,plain,
    ! [SV47: $i] :
      ( ( ( ~ ( frontsegP @ nil @ SV47 ) )
        = $true )
      | ( ( nil = SV47 )
        = $true )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[666]) ).

thf(715,plain,
    ! [SV47: $i] :
      ( ( ( nil != SV47 )
        = $true )
      | ( ( frontsegP @ nil @ SV47 )
        = $true )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[667]) ).

thf(716,plain,
    ! [SV96: $i,SV49: $i,SV117: $i] :
      ( ( ( ~ ( ssItem @ SV117 )
          | ! [SY239: $i] :
              ( ~ ( ssItem @ SY239 )
              | ( ( cons @ SV117 @ SV49 )
               != ( cons @ SY239 @ SV96 ) )
              | ~ ( ( SV117 != SY239 )
                  | ( SV96 != SV49 ) ) ) )
        = $true )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[669]) ).

thf(717,plain,
    ! [SV51: $i] :
      ( ( ( ! [SY191: $i] :
              ~ ~ ( ~ ( ssList @ SY191 )
                  | ( ( tl @ SV51 )
                   != SY191 ) ) )
        = $false )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[670]) ).

thf(718,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( singletonP @ SV52 ) )
        = $true )
      | ( ( ~ ! [SY192: $i] :
                ~ ~ ( ~ ( ssItem @ SY192 )
                    | ( ( cons @ SY192 @ nil )
                     != SV52 ) ) )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[671]) ).

thf(719,plain,
    ! [SV52: $i] :
      ( ( ( ~ ~ ! [SY193: $i] :
                  ~ ~ ( ~ ( ssItem @ SY193 )
                      | ( ( cons @ SY193 @ nil )
                       != SV52 ) ) )
        = $true )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[672]) ).

thf(720,plain,
    ! [SV97: $i,SV53: $i] :
      ( ( ( ~ ~ ( ~ ( rearsegP @ SV53 @ SV97 )
                | ~ ( rearsegP @ SV97 @ SV53 ) ) )
        = $true )
      | ( ( SV53 = SV97 )
        = $true )
      | ( ( ssList @ SV97 )
        = $false )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[673]) ).

thf(721,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( ~ ( ( nil
               != ( app @ SV54 @ SV98 ) )
              | ~ ( ( nil != SV98 )
                  | ( nil != SV54 ) ) )
          | ~ ( ~ ~ ( ( nil != SV98 )
                    | ( nil != SV54 ) )
              | ( nil
                = ( app @ SV54 @ SV98 ) ) ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[674]) ).

thf(722,plain,
    ! [SV58: $i] :
      ( ( ( ~ ( rearsegP @ nil @ SV58 ) )
        = $true )
      | ( ( nil = SV58 )
        = $true )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[675]) ).

thf(723,plain,
    ! [SV58: $i] :
      ( ( ( nil != SV58 )
        = $true )
      | ( ( rearsegP @ nil @ SV58 )
        = $true )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[676]) ).

thf(724,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ( ~ ( memberP @ SV59 @ SV99 )
              | ~ ! [SY230: $i] :
                    ~ ~ ( ~ ( ssList @ SY230 )
                        | ~ ~ ! [SY231: $i] :
                                ~ ~ ( ~ ( ssList @ SY231 )
                                    | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                     != SV59 ) ) ) )
          | ~ ( ~ ~ ! [SY232: $i] :
                      ~ ~ ( ~ ( ssList @ SY232 )
                          | ~ ~ ! [SY233: $i] :
                                  ~ ~ ( ~ ( ssList @ SY233 )
                                      | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                       != SV59 ) ) )
              | ( memberP @ SV59 @ SV99 ) ) )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[677]) ).

thf(725,plain,
    ! [SV60: $i] :
      ( ( ( ~ ( segmentP @ nil @ SV60 ) )
        = $true )
      | ( ( nil = SV60 )
        = $true )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[678]) ).

thf(726,plain,
    ! [SV60: $i] :
      ( ( ( nil != SV60 )
        = $true )
      | ( ( segmentP @ nil @ SV60 )
        = $true )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[679]) ).

thf(727,plain,
    ! [SV63: $i,SV100: $i] :
      ( ( ( nil
          = ( cons @ SV100 @ SV63 ) )
        = $false )
      | ( ( ssItem @ SV100 )
        = $false )
      | ( ( ssList @ SV63 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[681]) ).

thf(728,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( ~ ( ~ ( neq @ SV64 @ SV101 )
              | ( SV64 != SV101 ) )
          | ~ ( ~ ( ( SV64 != SV101 ) )
              | ( neq @ SV64 @ SV101 ) ) )
        = $false )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[682]) ).

thf(729,plain,
    ! [SV65: $i,SV102: $i,SV118: $i] :
      ( ( ( ~ ( ssList @ SV118 )
          | ( ( app @ SV102 @ SV118 )
           != ( app @ SV102 @ SV65 ) )
          | ( SV118 = SV65 ) )
        = $true )
      | ( ( ssList @ SV102 )
        = $false )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[683]) ).

thf(730,plain,
    ! [SV1: $i,SV66: $i,SV103: $i] :
      ( ( ( ~ ( ssList @ SV103 ) )
        = $true )
      | ( ( ( ( app @ SV103 @ SV66 )
           != ( app @ SV1 @ SV66 ) )
          | ( SV103 = SV1 ) )
        = $true )
      | ( ( ssList @ SV66 )
        = $false )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[684]) ).

thf(731,plain,
    ! [SV67: $i,SV4: $i,SV104: $i] :
      ( ( ( ~ ( ssItem @ SV104 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( leq @ SV4 @ SV67 )
                | ~ ( lt @ SV67 @ SV104 ) )
          | ( lt @ SV4 @ SV104 ) )
        = $true )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[685]) ).

thf(732,plain,
    ! [SV68: $i,SV5: $i,SV105: $i] :
      ( ( ( ~ ( ssItem @ SV105 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( gt @ SV5 @ SV68 )
                | ~ ( gt @ SV68 @ SV105 ) )
          | ( gt @ SV5 @ SV105 ) )
        = $true )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[686]) ).

thf(733,plain,
    ! [SV69: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( segmentP @ SV7 @ SV69 )
              | ~ ( segmentP @ SV69 @ SV7 ) ) )
        = $false )
      | ( ( SV7 = SV69 )
        = $true )
      | ( ( ssList @ SV69 )
        = $false )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[687]) ).

thf(734,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( neq @ SV11 @ SV71 )
              | ( SV11 != SV71 ) ) )
        = $false )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[688]) ).

thf(735,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( ( SV11 != SV71 ) )
              | ( neq @ SV11 @ SV71 ) ) )
        = $false )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[688]) ).

thf(736,plain,
    ! [SV72: $i,SV12: $i] :
      ( ( ( ~ ( ~ ( leq @ SV12 @ SV72 )
              | ~ ( leq @ SV72 @ SV12 ) ) )
        = $false )
      | ( ( SV12 = SV72 )
        = $true )
      | ( ( ssItem @ SV72 )
        = $false )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(737,plain,
    ! [SV74: $i,SV15: $i] :
      ( ( ( leq @ SV15 @ SV74 )
        = $false )
      | ( ( ( SV15 = SV74 )
          | ( lt @ SV15 @ SV74 ) )
        = $true )
      | ( ( ssItem @ SV74 )
        = $false )
      | ( ( ssItem @ SV15 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[690]) ).

thf(738,plain,
    ! [SV17: $i,SV75: $i,SV106: $i] :
      ( ( ( ~ ( ssList @ SV106 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
                  | ( memberP @ SV75 @ SV17 )
                  | ( memberP @ SV106 @ SV17 ) )
              | ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                      | ( memberP @ SV106 @ SV17 ) )
                  | ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 ) ) ) )
        = $true )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[691]) ).

thf(739,plain,
    ! [SV76: $i,SV19: $i,SV107: $i] :
      ( ( ( ~ ( ssItem @ SV107 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( geq @ SV19 @ SV76 )
                | ~ ( geq @ SV76 @ SV107 ) )
          | ( geq @ SV19 @ SV107 ) )
        = $true )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[692]) ).

thf(740,plain,
    ! [SV77: $i,SV20: $i,SV108: $i] :
      ( ( ( ~ ( ssItem @ SV108 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( leq @ SV20 @ SV77 )
                | ~ ( leq @ SV77 @ SV108 ) )
          | ( leq @ SV20 @ SV108 ) )
        = $true )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[693]) ).

thf(741,plain,
    ! [SV22: $i] :
      ( ( ( ~ ~ ( ~ ( ssItem @ ( sK7_SY159 @ SV22 ) )
                | ( ( hd @ SV22 )
                 != ( sK7_SY159 @ SV22 ) ) ) )
        = $false )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[694]) ).

thf(742,plain,
    ! [SV23: $i,SV79: $i,SV109: $i] :
      ( ( ( ~ ( ssList @ SV109 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
                  | ( SV23 = SV79 )
                  | ( memberP @ SV109 @ SV23 ) )
              | ~ ( ~ ( ( SV23 = SV79 )
                      | ( memberP @ SV109 @ SV23 ) )
                  | ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 ) ) ) )
        = $true )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[695]) ).

thf(743,plain,
    ! [SV80: $i,SV24: $i,SV110: $i] :
      ( ( ( ~ ( ssItem @ SV110 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( lt @ SV24 @ SV80 )
                | ~ ( lt @ SV80 @ SV110 ) )
          | ( lt @ SV24 @ SV110 ) )
        = $true )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[696]) ).

thf(744,plain,
    ! [SV81: $i,SV25: $i,SV111: $i] :
      ( ( ( ~ ( ssList @ SV111 ) )
        = $true )
      | ( ( ! [SY238: $i] :
              ( ~ ( ssList @ SY238 )
              | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SY238 ) )
                      | ~ ( ( SV25 != SV81 )
                          | ~ ( frontsegP @ SV111 @ SY238 ) ) )
                  | ~ ( ~ ~ ( ( SV25 != SV81 )
                            | ~ ( frontsegP @ SV111 @ SY238 ) )
                      | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SY238 ) ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[697]) ).

thf(745,plain,
    ! [SV82: $i,SV26: $i,SV112: $i] :
      ( ( ( ~ ( ssList @ SV112 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( segmentP @ SV26 @ SV82 )
                | ~ ( segmentP @ SV82 @ SV112 ) )
          | ( segmentP @ SV26 @ SV112 ) )
        = $true )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[698]) ).

thf(746,plain,
    ! [SV83: $i,SV27: $i,SV113: $i] :
      ( ( ( ~ ( ssList @ SV113 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( frontsegP @ SV27 @ SV83 )
                | ~ ( frontsegP @ SV83 @ SV113 ) )
          | ( frontsegP @ SV27 @ SV113 ) )
        = $true )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[699]) ).

thf(747,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( lt @ SV29 @ SV85 )
              | ~ ( ~ ( ( SV29 != SV85 ) )
                  | ~ ( leq @ SV29 @ SV85 ) ) ) )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[701]) ).

thf(748,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ( SV29 != SV85 ) )
                    | ~ ( leq @ SV29 @ SV85 ) )
              | ( lt @ SV29 @ SV85 ) ) )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[701]) ).

thf(749,plain,
    ! [SV86: $i,SV30: $i] :
      ( ( ( lt @ SV30 @ SV86 )
        = $false )
      | ( ( ~ ( lt @ SV86 @ SV30 ) )
        = $true )
      | ( ( ssItem @ SV86 )
        = $false )
      | ( ( ssItem @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[702]) ).

thf(750,plain,
    ( ( ~ ~ ( ~ ( ssItem @ sK8_SY205 )
            | ~ ( ( sK2_SX0 != sK8_SY205 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[703]) ).

thf(751,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( ~ ( ~ ( frontsegP @ SV31 @ SV87 )
              | ~ ( frontsegP @ SV87 @ SV31 ) ) )
        = $false )
      | ( ( SV31 = SV87 )
        = $true )
      | ( ( ssList @ SV87 )
        = $false )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[704]) ).

thf(752,plain,
    ( ( ssList @ sK5_SY222 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[705]) ).

thf(753,plain,
    ( ( ( sK3_SX0 != sK5_SY222 )
      | ( sK1_U != sK4_SY206 )
      | ~ ( neq @ sK3_SX0 @ nil )
      | ( neq @ sK1_U @ nil ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[706]) ).

thf(754,plain,
    ( ( ~ ( ~ ! [SY235: $i] :
                ( ~ ( ssItem @ SY235 )
                | ( ( cons @ SY235 @ nil )
                 != sK4_SY206 )
                | ~ ( memberP @ sK5_SY222 @ SY235 )
                | ~ ! [SY236: $i] :
                      ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY236 )
                                      | ~ ( ( SY235 != SY236 ) ) )
                                | ~ ( memberP @ sK5_SY222 @ SY236 ) )
                          | ~ ( leq @ SY235 @ SY236 ) ) )
          | ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[706]) ).

thf(755,plain,
    ! [SV88: $i,SV35: $i] :
      ( ( ( gt @ SV35 @ SV88 )
        = $false )
      | ( ( ~ ( gt @ SV88 @ SV35 ) )
        = $true )
      | ( ( ssItem @ SV88 )
        = $false )
      | ( ( ssItem @ SV35 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[707]) ).

thf(756,plain,
    ! [SV89: $i,SV36: $i,SV114: $i] :
      ( ( ( ~ ( ssList @ SV114 ) )
        = $true )
      | ( ( ( app @ ( app @ SV36 @ SV89 ) @ SV114 )
          = ( app @ SV36 @ ( app @ SV89 @ SV114 ) ) )
        = $true )
      | ( ( ssList @ SV89 )
        = $false )
      | ( ( ssList @ SV36 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[708]) ).

thf(757,plain,
    ! [SV91: $i,SV38: $i,SV115: $i] :
      ( ( ( ~ ( ssList @ SV115 ) )
        = $true )
      | ( ( ~ ~ ( ~ ( rearsegP @ SV38 @ SV91 )
                | ~ ( rearsegP @ SV91 @ SV115 ) )
          | ( rearsegP @ SV38 @ SV115 ) )
        = $true )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[709]) ).

thf(758,plain,
    ! [SV39: $i,SV92: $i,SV116: $i] :
      ( ( ( ~ ( ssItem @ SV116 ) )
        = $true )
      | ( ( ( cons @ SV116 @ ( app @ SV92 @ SV39 ) )
          = ( app @ ( cons @ SV116 @ SV92 ) @ SV39 ) )
        = $true )
      | ( ( ssList @ SV92 )
        = $false )
      | ( ( ssList @ SV39 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[710]) ).

thf(759,plain,
    ! [SV93: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( geq @ SV41 @ SV93 )
              | ~ ( geq @ SV93 @ SV41 ) ) )
        = $false )
      | ( ( SV41 = SV93 )
        = $true )
      | ( ( ssItem @ SV93 )
        = $false )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[711]) ).

thf(760,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( ssList @ ( sK6_SY184 @ SV42 ) )
          | ~ ~ ! [SY237: $i] :
                  ~ ~ ( ~ ( ssItem @ SY237 )
                      | ( ( cons @ SY237 @ ( sK6_SY184 @ SV42 ) )
                       != SV42 ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[712]) ).

thf(761,plain,
    ! [SV94: $i,SV44: $i] :
      ( ( ( ~ ( ~ ( geq @ SV44 @ SV94 )
              | ( leq @ SV94 @ SV44 ) ) )
        = $false )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[713]) ).

thf(762,plain,
    ! [SV44: $i,SV94: $i] :
      ( ( ( ~ ( ~ ( leq @ SV94 @ SV44 )
              | ( geq @ SV44 @ SV94 ) ) )
        = $false )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[713]) ).

thf(763,plain,
    ! [SV47: $i] :
      ( ( ( frontsegP @ nil @ SV47 )
        = $false )
      | ( ( nil = SV47 )
        = $true )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[714]) ).

thf(764,plain,
    ! [SV47: $i] :
      ( ( ( nil = SV47 )
        = $false )
      | ( ( frontsegP @ nil @ SV47 )
        = $true )
      | ( ( ssList @ SV47 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[715]) ).

thf(765,plain,
    ! [SV96: $i,SV49: $i,SV117: $i] :
      ( ( ( ~ ( ssItem @ SV117 ) )
        = $true )
      | ( ( ! [SY239: $i] :
              ( ~ ( ssItem @ SY239 )
              | ( ( cons @ SV117 @ SV49 )
               != ( cons @ SY239 @ SV96 ) )
              | ~ ( ( SV117 != SY239 )
                  | ( SV96 != SV49 ) ) ) )
        = $true )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[716]) ).

thf(766,plain,
    ! [SV51: $i] :
      ( ( ( ~ ~ ( ~ ( ssList @ ( sK9_SY191 @ SV51 ) )
                | ( ( tl @ SV51 )
                 != ( sK9_SY191 @ SV51 ) ) ) )
        = $false )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[717]) ).

thf(767,plain,
    ! [SV52: $i] :
      ( ( ( singletonP @ SV52 )
        = $false )
      | ( ( ~ ! [SY192: $i] :
                ~ ~ ( ~ ( ssItem @ SY192 )
                    | ( ( cons @ SY192 @ nil )
                     != SV52 ) ) )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[718]) ).

thf(768,plain,
    ! [SV52: $i] :
      ( ( ( ~ ! [SY193: $i] :
                ~ ~ ( ~ ( ssItem @ SY193 )
                    | ( ( cons @ SY193 @ nil )
                     != SV52 ) ) )
        = $false )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[719]) ).

thf(769,plain,
    ! [SV97: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( rearsegP @ SV53 @ SV97 )
              | ~ ( rearsegP @ SV97 @ SV53 ) ) )
        = $false )
      | ( ( SV53 = SV97 )
        = $true )
      | ( ( ssList @ SV97 )
        = $false )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[720]) ).

thf(770,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( ~ ( ( nil
               != ( app @ SV54 @ SV98 ) )
              | ~ ( ( nil != SV98 )
                  | ( nil != SV54 ) ) ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(771,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ~ ( ~ ~ ( ( nil != SV98 )
                    | ( nil != SV54 ) )
              | ( nil
                = ( app @ SV54 @ SV98 ) ) ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(772,plain,
    ! [SV58: $i] :
      ( ( ( rearsegP @ nil @ SV58 )
        = $false )
      | ( ( nil = SV58 )
        = $true )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[722]) ).

thf(773,plain,
    ! [SV58: $i] :
      ( ( ( nil = SV58 )
        = $false )
      | ( ( rearsegP @ nil @ SV58 )
        = $true )
      | ( ( ssList @ SV58 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[723]) ).

thf(774,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ( ~ ( memberP @ SV59 @ SV99 )
              | ~ ! [SY230: $i] :
                    ~ ~ ( ~ ( ssList @ SY230 )
                        | ~ ~ ! [SY231: $i] :
                                ~ ~ ( ~ ( ssList @ SY231 )
                                    | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                     != SV59 ) ) ) ) )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(775,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ( ~ ~ ! [SY232: $i] :
                      ~ ~ ( ~ ( ssList @ SY232 )
                          | ~ ~ ! [SY233: $i] :
                                  ~ ~ ( ~ ( ssList @ SY233 )
                                      | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                       != SV59 ) ) )
              | ( memberP @ SV59 @ SV99 ) ) )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(776,plain,
    ! [SV60: $i] :
      ( ( ( segmentP @ nil @ SV60 )
        = $false )
      | ( ( nil = SV60 )
        = $true )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[725]) ).

thf(777,plain,
    ! [SV60: $i] :
      ( ( ( nil = SV60 )
        = $false )
      | ( ( segmentP @ nil @ SV60 )
        = $true )
      | ( ( ssList @ SV60 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[726]) ).

thf(778,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( ~ ( ~ ( neq @ SV64 @ SV101 )
              | ( SV64 != SV101 ) ) )
        = $false )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(779,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( ~ ( ~ ( ( SV64 != SV101 ) )
              | ( neq @ SV64 @ SV101 ) ) )
        = $false )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(780,plain,
    ! [SV65: $i,SV102: $i,SV118: $i] :
      ( ( ( ~ ( ssList @ SV118 ) )
        = $true )
      | ( ( ( ( app @ SV102 @ SV118 )
           != ( app @ SV102 @ SV65 ) )
          | ( SV118 = SV65 ) )
        = $true )
      | ( ( ssList @ SV102 )
        = $false )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[729]) ).

thf(781,plain,
    ! [SV1: $i,SV66: $i,SV103: $i] :
      ( ( ( ssList @ SV103 )
        = $false )
      | ( ( ( ( app @ SV103 @ SV66 )
           != ( app @ SV1 @ SV66 ) )
          | ( SV103 = SV1 ) )
        = $true )
      | ( ( ssList @ SV66 )
        = $false )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[730]) ).

thf(782,plain,
    ! [SV67: $i,SV4: $i,SV104: $i] :
      ( ( ( ssItem @ SV104 )
        = $false )
      | ( ( ~ ~ ( ~ ( leq @ SV4 @ SV67 )
                | ~ ( lt @ SV67 @ SV104 ) )
          | ( lt @ SV4 @ SV104 ) )
        = $true )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[731]) ).

thf(783,plain,
    ! [SV68: $i,SV5: $i,SV105: $i] :
      ( ( ( ssItem @ SV105 )
        = $false )
      | ( ( ~ ~ ( ~ ( gt @ SV5 @ SV68 )
                | ~ ( gt @ SV68 @ SV105 ) )
          | ( gt @ SV5 @ SV105 ) )
        = $true )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[732]) ).

thf(784,plain,
    ! [SV69: $i,SV7: $i] :
      ( ( ( ~ ( segmentP @ SV7 @ SV69 )
          | ~ ( segmentP @ SV69 @ SV7 ) )
        = $true )
      | ( ( SV7 = SV69 )
        = $true )
      | ( ( ssList @ SV69 )
        = $false )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[733]) ).

thf(785,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( ~ ( neq @ SV11 @ SV71 )
          | ( SV11 != SV71 ) )
        = $true )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[734]) ).

thf(786,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( ~ ( ( SV11 != SV71 ) )
          | ( neq @ SV11 @ SV71 ) )
        = $true )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[735]) ).

thf(787,plain,
    ! [SV72: $i,SV12: $i] :
      ( ( ( ~ ( leq @ SV12 @ SV72 )
          | ~ ( leq @ SV72 @ SV12 ) )
        = $true )
      | ( ( SV12 = SV72 )
        = $true )
      | ( ( ssItem @ SV72 )
        = $false )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[736]) ).

thf(788,plain,
    ! [SV74: $i,SV15: $i] :
      ( ( ( SV15 = SV74 )
        = $true )
      | ( ( lt @ SV15 @ SV74 )
        = $true )
      | ( ( leq @ SV15 @ SV74 )
        = $false )
      | ( ( ssItem @ SV74 )
        = $false )
      | ( ( ssItem @ SV15 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[737]) ).

thf(789,plain,
    ! [SV17: $i,SV75: $i,SV106: $i] :
      ( ( ( ssList @ SV106 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
                  | ( memberP @ SV75 @ SV17 )
                  | ( memberP @ SV106 @ SV17 ) )
              | ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                      | ( memberP @ SV106 @ SV17 ) )
                  | ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 ) ) ) )
        = $true )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[738]) ).

thf(790,plain,
    ! [SV76: $i,SV19: $i,SV107: $i] :
      ( ( ( ssItem @ SV107 )
        = $false )
      | ( ( ~ ~ ( ~ ( geq @ SV19 @ SV76 )
                | ~ ( geq @ SV76 @ SV107 ) )
          | ( geq @ SV19 @ SV107 ) )
        = $true )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[739]) ).

thf(791,plain,
    ! [SV77: $i,SV20: $i,SV108: $i] :
      ( ( ( ssItem @ SV108 )
        = $false )
      | ( ( ~ ~ ( ~ ( leq @ SV20 @ SV77 )
                | ~ ( leq @ SV77 @ SV108 ) )
          | ( leq @ SV20 @ SV108 ) )
        = $true )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[740]) ).

thf(792,plain,
    ! [SV22: $i] :
      ( ( ( ~ ( ~ ( ssItem @ ( sK7_SY159 @ SV22 ) )
              | ( ( hd @ SV22 )
               != ( sK7_SY159 @ SV22 ) ) ) )
        = $true )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[741]) ).

thf(793,plain,
    ! [SV23: $i,SV79: $i,SV109: $i] :
      ( ( ( ssList @ SV109 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
                  | ( SV23 = SV79 )
                  | ( memberP @ SV109 @ SV23 ) )
              | ~ ( ~ ( ( SV23 = SV79 )
                      | ( memberP @ SV109 @ SV23 ) )
                  | ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 ) ) ) )
        = $true )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[742]) ).

thf(794,plain,
    ! [SV80: $i,SV24: $i,SV110: $i] :
      ( ( ( ssItem @ SV110 )
        = $false )
      | ( ( ~ ~ ( ~ ( lt @ SV24 @ SV80 )
                | ~ ( lt @ SV80 @ SV110 ) )
          | ( lt @ SV24 @ SV110 ) )
        = $true )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[743]) ).

thf(795,plain,
    ! [SV81: $i,SV25: $i,SV111: $i] :
      ( ( ( ssList @ SV111 )
        = $false )
      | ( ( ! [SY238: $i] :
              ( ~ ( ssList @ SY238 )
              | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SY238 ) )
                      | ~ ( ( SV25 != SV81 )
                          | ~ ( frontsegP @ SV111 @ SY238 ) ) )
                  | ~ ( ~ ~ ( ( SV25 != SV81 )
                            | ~ ( frontsegP @ SV111 @ SY238 ) )
                      | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SY238 ) ) ) ) ) )
        = $true )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[744]) ).

thf(796,plain,
    ! [SV82: $i,SV26: $i,SV112: $i] :
      ( ( ( ssList @ SV112 )
        = $false )
      | ( ( ~ ~ ( ~ ( segmentP @ SV26 @ SV82 )
                | ~ ( segmentP @ SV82 @ SV112 ) )
          | ( segmentP @ SV26 @ SV112 ) )
        = $true )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[745]) ).

thf(797,plain,
    ! [SV83: $i,SV27: $i,SV113: $i] :
      ( ( ( ssList @ SV113 )
        = $false )
      | ( ( ~ ~ ( ~ ( frontsegP @ SV27 @ SV83 )
                | ~ ( frontsegP @ SV83 @ SV113 ) )
          | ( frontsegP @ SV27 @ SV113 ) )
        = $true )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[746]) ).

thf(798,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( lt @ SV29 @ SV85 )
          | ~ ( ~ ( ( SV29 != SV85 ) )
              | ~ ( leq @ SV29 @ SV85 ) ) )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[747]) ).

thf(799,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ~ ( ~ ( ( SV29 != SV85 ) )
                | ~ ( leq @ SV29 @ SV85 ) )
          | ( lt @ SV29 @ SV85 ) )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[748]) ).

thf(800,plain,
    ! [SV30: $i,SV86: $i] :
      ( ( ( lt @ SV86 @ SV30 )
        = $false )
      | ( ( lt @ SV30 @ SV86 )
        = $false )
      | ( ( ssItem @ SV86 )
        = $false )
      | ( ( ssItem @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[749]) ).

thf(801,plain,
    ( ( ~ ( ~ ( ssItem @ sK8_SY205 )
          | ~ ( ( sK2_SX0 != sK8_SY205 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[750]) ).

thf(802,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( ~ ( frontsegP @ SV31 @ SV87 )
          | ~ ( frontsegP @ SV87 @ SV31 ) )
        = $true )
      | ( ( SV31 = SV87 )
        = $true )
      | ( ( ssList @ SV87 )
        = $false )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[751]) ).

thf(803,plain,
    ( ( ( sK3_SX0 != sK5_SY222 )
      | ( sK1_U != sK4_SY206 )
      | ~ ( neq @ sK3_SX0 @ nil ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[753]) ).

thf(804,plain,
    ( ( neq @ sK1_U @ nil )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[753]) ).

thf(805,plain,
    ( ( ~ ! [SY235: $i] :
            ( ~ ( ssItem @ SY235 )
            | ( ( cons @ SY235 @ nil )
             != sK4_SY206 )
            | ~ ( memberP @ sK5_SY222 @ SY235 )
            | ~ ! [SY236: $i] :
                  ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY236 )
                                  | ~ ( ( SY235 != SY236 ) ) )
                            | ~ ( memberP @ sK5_SY222 @ SY236 ) )
                      | ~ ( leq @ SY235 @ SY236 ) ) )
      | ~ ( ( nil != sK5_SY222 )
          | ( nil != sK4_SY206 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[754]) ).

thf(806,plain,
    ! [SV35: $i,SV88: $i] :
      ( ( ( gt @ SV88 @ SV35 )
        = $false )
      | ( ( gt @ SV35 @ SV88 )
        = $false )
      | ( ( ssItem @ SV88 )
        = $false )
      | ( ( ssItem @ SV35 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[755]) ).

thf(807,plain,
    ! [SV89: $i,SV36: $i,SV114: $i] :
      ( ( ( ssList @ SV114 )
        = $false )
      | ( ( ( app @ ( app @ SV36 @ SV89 ) @ SV114 )
          = ( app @ SV36 @ ( app @ SV89 @ SV114 ) ) )
        = $true )
      | ( ( ssList @ SV89 )
        = $false )
      | ( ( ssList @ SV36 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[756]) ).

thf(808,plain,
    ! [SV91: $i,SV38: $i,SV115: $i] :
      ( ( ( ssList @ SV115 )
        = $false )
      | ( ( ~ ~ ( ~ ( rearsegP @ SV38 @ SV91 )
                | ~ ( rearsegP @ SV91 @ SV115 ) )
          | ( rearsegP @ SV38 @ SV115 ) )
        = $true )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[757]) ).

thf(809,plain,
    ! [SV39: $i,SV92: $i,SV116: $i] :
      ( ( ( ssItem @ SV116 )
        = $false )
      | ( ( ( cons @ SV116 @ ( app @ SV92 @ SV39 ) )
          = ( app @ ( cons @ SV116 @ SV92 ) @ SV39 ) )
        = $true )
      | ( ( ssList @ SV92 )
        = $false )
      | ( ( ssList @ SV39 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[758]) ).

thf(810,plain,
    ! [SV93: $i,SV41: $i] :
      ( ( ( ~ ( geq @ SV41 @ SV93 )
          | ~ ( geq @ SV93 @ SV41 ) )
        = $true )
      | ( ( SV41 = SV93 )
        = $true )
      | ( ( ssItem @ SV93 )
        = $false )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[759]) ).

thf(811,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( ssList @ ( sK6_SY184 @ SV42 ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[760]) ).

thf(812,plain,
    ! [SV42: $i] :
      ( ( ( ~ ~ ! [SY237: $i] :
                  ~ ~ ( ~ ( ssItem @ SY237 )
                      | ( ( cons @ SY237 @ ( sK6_SY184 @ SV42 ) )
                       != SV42 ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[760]) ).

thf(813,plain,
    ! [SV94: $i,SV44: $i] :
      ( ( ( ~ ( geq @ SV44 @ SV94 )
          | ( leq @ SV94 @ SV44 ) )
        = $true )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[761]) ).

thf(814,plain,
    ! [SV44: $i,SV94: $i] :
      ( ( ( ~ ( leq @ SV94 @ SV44 )
          | ( geq @ SV44 @ SV94 ) )
        = $true )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[762]) ).

thf(815,plain,
    ! [SV96: $i,SV49: $i,SV117: $i] :
      ( ( ( ssItem @ SV117 )
        = $false )
      | ( ( ! [SY239: $i] :
              ( ~ ( ssItem @ SY239 )
              | ( ( cons @ SV117 @ SV49 )
               != ( cons @ SY239 @ SV96 ) )
              | ~ ( ( SV117 != SY239 )
                  | ( SV96 != SV49 ) ) ) )
        = $true )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[765]) ).

thf(816,plain,
    ! [SV51: $i] :
      ( ( ( ~ ( ~ ( ssList @ ( sK9_SY191 @ SV51 ) )
              | ( ( tl @ SV51 )
               != ( sK9_SY191 @ SV51 ) ) ) )
        = $true )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[766]) ).

thf(817,plain,
    ! [SV52: $i] :
      ( ( ( ! [SY192: $i] :
              ~ ~ ( ~ ( ssItem @ SY192 )
                  | ( ( cons @ SY192 @ nil )
                   != SV52 ) ) )
        = $false )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[767]) ).

thf(818,plain,
    ! [SV52: $i] :
      ( ( ( ! [SY193: $i] :
              ~ ~ ( ~ ( ssItem @ SY193 )
                  | ( ( cons @ SY193 @ nil )
                   != SV52 ) ) )
        = $true )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[768]) ).

thf(819,plain,
    ! [SV97: $i,SV53: $i] :
      ( ( ( ~ ( rearsegP @ SV53 @ SV97 )
          | ~ ( rearsegP @ SV97 @ SV53 ) )
        = $true )
      | ( ( SV53 = SV97 )
        = $true )
      | ( ( ssList @ SV97 )
        = $false )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[769]) ).

thf(820,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( ( nil
           != ( app @ SV54 @ SV98 ) )
          | ~ ( ( nil != SV98 )
              | ( nil != SV54 ) ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[770]) ).

thf(821,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ~ ~ ( ( nil != SV98 )
                | ( nil != SV54 ) )
          | ( nil
            = ( app @ SV54 @ SV98 ) ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[771]) ).

thf(822,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ( memberP @ SV59 @ SV99 )
          | ~ ! [SY230: $i] :
                ~ ~ ( ~ ( ssList @ SY230 )
                    | ~ ~ ! [SY231: $i] :
                            ~ ~ ( ~ ( ssList @ SY231 )
                                | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                 != SV59 ) ) ) )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[774]) ).

thf(823,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ~ ! [SY232: $i] :
                  ~ ~ ( ~ ( ssList @ SY232 )
                      | ~ ~ ! [SY233: $i] :
                              ~ ~ ( ~ ( ssList @ SY233 )
                                  | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                   != SV59 ) ) )
          | ( memberP @ SV59 @ SV99 ) )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[775]) ).

thf(824,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( ~ ( neq @ SV64 @ SV101 )
          | ( SV64 != SV101 ) )
        = $true )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[778]) ).

thf(825,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( ~ ( ( SV64 != SV101 ) )
          | ( neq @ SV64 @ SV101 ) )
        = $true )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[779]) ).

thf(826,plain,
    ! [SV65: $i,SV102: $i,SV118: $i] :
      ( ( ( ssList @ SV118 )
        = $false )
      | ( ( ( ( app @ SV102 @ SV118 )
           != ( app @ SV102 @ SV65 ) )
          | ( SV118 = SV65 ) )
        = $true )
      | ( ( ssList @ SV102 )
        = $false )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[780]) ).

thf(827,plain,
    ! [SV1: $i,SV66: $i,SV103: $i] :
      ( ( ( ( app @ SV103 @ SV66 )
         != ( app @ SV1 @ SV66 ) )
        = $true )
      | ( ( SV103 = SV1 )
        = $true )
      | ( ( ssList @ SV103 )
        = $false )
      | ( ( ssList @ SV66 )
        = $false )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[781]) ).

thf(828,plain,
    ! [SV104: $i,SV67: $i,SV4: $i] :
      ( ( ( ~ ~ ( ~ ( leq @ SV4 @ SV67 )
                | ~ ( lt @ SV67 @ SV104 ) ) )
        = $true )
      | ( ( lt @ SV4 @ SV104 )
        = $true )
      | ( ( ssItem @ SV104 )
        = $false )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[782]) ).

thf(829,plain,
    ! [SV105: $i,SV68: $i,SV5: $i] :
      ( ( ( ~ ~ ( ~ ( gt @ SV5 @ SV68 )
                | ~ ( gt @ SV68 @ SV105 ) ) )
        = $true )
      | ( ( gt @ SV5 @ SV105 )
        = $true )
      | ( ( ssItem @ SV105 )
        = $false )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[783]) ).

thf(830,plain,
    ! [SV69: $i,SV7: $i] :
      ( ( ( ~ ( segmentP @ SV7 @ SV69 ) )
        = $true )
      | ( ( ~ ( segmentP @ SV69 @ SV7 ) )
        = $true )
      | ( ( SV7 = SV69 )
        = $true )
      | ( ( ssList @ SV69 )
        = $false )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[784]) ).

thf(831,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( ~ ( neq @ SV11 @ SV71 ) )
        = $true )
      | ( ( SV11 != SV71 )
        = $true )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[785]) ).

thf(832,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( ~ ( ( SV11 != SV71 ) ) )
        = $true )
      | ( ( neq @ SV11 @ SV71 )
        = $true )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[786]) ).

thf(833,plain,
    ! [SV72: $i,SV12: $i] :
      ( ( ( ~ ( leq @ SV12 @ SV72 ) )
        = $true )
      | ( ( ~ ( leq @ SV72 @ SV12 ) )
        = $true )
      | ( ( SV12 = SV72 )
        = $true )
      | ( ( ssItem @ SV72 )
        = $false )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[787]) ).

thf(834,plain,
    ! [SV17: $i,SV106: $i,SV75: $i] :
      ( ( ( ~ ( ~ ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
              | ( memberP @ SV75 @ SV17 )
              | ( memberP @ SV106 @ SV17 ) )
          | ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                  | ( memberP @ SV106 @ SV17 ) )
              | ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 ) ) )
        = $false )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[789]) ).

thf(835,plain,
    ! [SV107: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ~ ( ~ ( geq @ SV19 @ SV76 )
                | ~ ( geq @ SV76 @ SV107 ) ) )
        = $true )
      | ( ( geq @ SV19 @ SV107 )
        = $true )
      | ( ( ssItem @ SV107 )
        = $false )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[790]) ).

thf(836,plain,
    ! [SV108: $i,SV77: $i,SV20: $i] :
      ( ( ( ~ ~ ( ~ ( leq @ SV20 @ SV77 )
                | ~ ( leq @ SV77 @ SV108 ) ) )
        = $true )
      | ( ( leq @ SV20 @ SV108 )
        = $true )
      | ( ( ssItem @ SV108 )
        = $false )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[791]) ).

thf(837,plain,
    ! [SV22: $i] :
      ( ( ( ~ ( ssItem @ ( sK7_SY159 @ SV22 ) )
          | ( ( hd @ SV22 )
           != ( sK7_SY159 @ SV22 ) ) )
        = $false )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[792]) ).

thf(838,plain,
    ! [SV23: $i,SV109: $i,SV79: $i] :
      ( ( ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
              | ( SV23 = SV79 )
              | ( memberP @ SV109 @ SV23 ) )
          | ~ ( ~ ( ( SV23 = SV79 )
                  | ( memberP @ SV109 @ SV23 ) )
              | ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 ) ) )
        = $false )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[793]) ).

thf(839,plain,
    ! [SV110: $i,SV80: $i,SV24: $i] :
      ( ( ( ~ ~ ( ~ ( lt @ SV24 @ SV80 )
                | ~ ( lt @ SV80 @ SV110 ) ) )
        = $true )
      | ( ( lt @ SV24 @ SV110 )
        = $true )
      | ( ( ssItem @ SV110 )
        = $false )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[794]) ).

thf(840,plain,
    ! [SV81: $i,SV111: $i,SV25: $i,SV119: $i] :
      ( ( ( ~ ( ssList @ SV119 )
          | ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
                  | ~ ( ( SV25 != SV81 )
                      | ~ ( frontsegP @ SV111 @ SV119 ) ) )
              | ~ ( ~ ~ ( ( SV25 != SV81 )
                        | ~ ( frontsegP @ SV111 @ SV119 ) )
                  | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[795]) ).

thf(841,plain,
    ! [SV112: $i,SV82: $i,SV26: $i] :
      ( ( ( ~ ~ ( ~ ( segmentP @ SV26 @ SV82 )
                | ~ ( segmentP @ SV82 @ SV112 ) ) )
        = $true )
      | ( ( segmentP @ SV26 @ SV112 )
        = $true )
      | ( ( ssList @ SV112 )
        = $false )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[796]) ).

thf(842,plain,
    ! [SV113: $i,SV83: $i,SV27: $i] :
      ( ( ( ~ ~ ( ~ ( frontsegP @ SV27 @ SV83 )
                | ~ ( frontsegP @ SV83 @ SV113 ) ) )
        = $true )
      | ( ( frontsegP @ SV27 @ SV113 )
        = $true )
      | ( ( ssList @ SV113 )
        = $false )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[797]) ).

thf(843,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( lt @ SV29 @ SV85 ) )
        = $true )
      | ( ( ~ ( ~ ( ( SV29 != SV85 ) )
              | ~ ( leq @ SV29 @ SV85 ) ) )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[798]) ).

thf(844,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ~ ( ~ ( ( SV29 != SV85 ) )
                | ~ ( leq @ SV29 @ SV85 ) ) )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[799]) ).

thf(845,plain,
    ( ( ~ ( ssItem @ sK8_SY205 )
      | ~ ( ( sK2_SX0 != sK8_SY205 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[801]) ).

thf(846,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( ~ ( frontsegP @ SV31 @ SV87 ) )
        = $true )
      | ( ( ~ ( frontsegP @ SV87 @ SV31 ) )
        = $true )
      | ( ( SV31 = SV87 )
        = $true )
      | ( ( ssList @ SV87 )
        = $false )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[802]) ).

thf(847,plain,
    ( ( ( sK3_SX0 != sK5_SY222 )
      | ( sK1_U != sK4_SY206 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[803]) ).

thf(848,plain,
    ( ( ~ ( neq @ sK3_SX0 @ nil ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[803]) ).

thf(849,plain,
    ( ( ( ~ ! [SY235: $i] :
              ( ~ ( ssItem @ SY235 )
              | ( ( cons @ SY235 @ nil )
               != sK4_SY206 )
              | ~ ( memberP @ sK5_SY222 @ SY235 )
              | ~ ! [SY236: $i] :
                    ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY236 )
                                    | ~ ( ( SY235 != SY236 ) ) )
                              | ~ ( memberP @ sK5_SY222 @ SY236 ) )
                        | ~ ( leq @ SY235 @ SY236 ) ) ) )
      = $true )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[805]) ).

thf(850,plain,
    ! [SV115: $i,SV91: $i,SV38: $i] :
      ( ( ( ~ ~ ( ~ ( rearsegP @ SV38 @ SV91 )
                | ~ ( rearsegP @ SV91 @ SV115 ) ) )
        = $true )
      | ( ( rearsegP @ SV38 @ SV115 )
        = $true )
      | ( ( ssList @ SV115 )
        = $false )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[808]) ).

thf(851,plain,
    ! [SV93: $i,SV41: $i] :
      ( ( ( ~ ( geq @ SV41 @ SV93 ) )
        = $true )
      | ( ( ~ ( geq @ SV93 @ SV41 ) )
        = $true )
      | ( ( SV41 = SV93 )
        = $true )
      | ( ( ssItem @ SV93 )
        = $false )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[810]) ).

thf(852,plain,
    ! [SV42: $i] :
      ( ( ( ssList @ ( sK6_SY184 @ SV42 ) )
        = $true )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[811]) ).

thf(853,plain,
    ! [SV42: $i] :
      ( ( ( ~ ! [SY237: $i] :
                ~ ~ ( ~ ( ssItem @ SY237 )
                    | ( ( cons @ SY237 @ ( sK6_SY184 @ SV42 ) )
                     != SV42 ) ) )
        = $true )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[812]) ).

thf(854,plain,
    ! [SV94: $i,SV44: $i] :
      ( ( ( ~ ( geq @ SV44 @ SV94 ) )
        = $true )
      | ( ( leq @ SV94 @ SV44 )
        = $true )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[813]) ).

thf(855,plain,
    ! [SV44: $i,SV94: $i] :
      ( ( ( ~ ( leq @ SV94 @ SV44 ) )
        = $true )
      | ( ( geq @ SV44 @ SV94 )
        = $true )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[814]) ).

thf(856,plain,
    ! [SV96: $i,SV49: $i,SV117: $i,SV120: $i] :
      ( ( ( ~ ( ssItem @ SV120 )
          | ( ( cons @ SV117 @ SV49 )
           != ( cons @ SV120 @ SV96 ) )
          | ~ ( ( SV117 != SV120 )
              | ( SV96 != SV49 ) ) )
        = $true )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[815]) ).

thf(857,plain,
    ! [SV51: $i] :
      ( ( ( ~ ( ssList @ ( sK9_SY191 @ SV51 ) )
          | ( ( tl @ SV51 )
           != ( sK9_SY191 @ SV51 ) ) )
        = $false )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[816]) ).

thf(858,plain,
    ! [SV52: $i] :
      ( ( ( ~ ~ ( ~ ( ssItem @ ( sK10_SY192 @ SV52 ) )
                | ( ( cons @ ( sK10_SY192 @ SV52 ) @ nil )
                 != SV52 ) ) )
        = $false )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[817]) ).

thf(859,plain,
    ! [SV52: $i,SV121: $i] :
      ( ( ( ~ ~ ( ~ ( ssItem @ SV121 )
                | ( ( cons @ SV121 @ nil )
                 != SV52 ) ) )
        = $true )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[818]) ).

thf(860,plain,
    ! [SV97: $i,SV53: $i] :
      ( ( ( ~ ( rearsegP @ SV53 @ SV97 ) )
        = $true )
      | ( ( ~ ( rearsegP @ SV97 @ SV53 ) )
        = $true )
      | ( ( SV53 = SV97 )
        = $true )
      | ( ( ssList @ SV97 )
        = $false )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[819]) ).

thf(861,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( nil
         != ( app @ SV54 @ SV98 ) )
        = $true )
      | ( ( ~ ( ( nil != SV98 )
              | ( nil != SV54 ) ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[820]) ).

thf(862,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ~ ~ ( ( nil != SV98 )
                | ( nil != SV54 ) ) )
        = $true )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[821]) ).

thf(863,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ( memberP @ SV59 @ SV99 ) )
        = $true )
      | ( ( ~ ! [SY230: $i] :
                ~ ~ ( ~ ( ssList @ SY230 )
                    | ~ ~ ! [SY231: $i] :
                            ~ ~ ( ~ ( ssList @ SY231 )
                                | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                 != SV59 ) ) ) )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[822]) ).

thf(864,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ~ ! [SY232: $i] :
                  ~ ~ ( ~ ( ssList @ SY232 )
                      | ~ ~ ! [SY233: $i] :
                              ~ ~ ( ~ ( ssList @ SY233 )
                                  | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                   != SV59 ) ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[823]) ).

thf(865,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( ~ ( neq @ SV64 @ SV101 ) )
        = $true )
      | ( ( SV64 != SV101 )
        = $true )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[824]) ).

thf(866,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( ~ ( ( SV64 != SV101 ) ) )
        = $true )
      | ( ( neq @ SV64 @ SV101 )
        = $true )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[825]) ).

thf(867,plain,
    ! [SV65: $i,SV118: $i,SV102: $i] :
      ( ( ( ( app @ SV102 @ SV118 )
         != ( app @ SV102 @ SV65 ) )
        = $true )
      | ( ( SV118 = SV65 )
        = $true )
      | ( ( ssList @ SV118 )
        = $false )
      | ( ( ssList @ SV102 )
        = $false )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[826]) ).

thf(868,plain,
    ! [SV1: $i,SV66: $i,SV103: $i] :
      ( ( ( ( app @ SV103 @ SV66 )
          = ( app @ SV1 @ SV66 ) )
        = $false )
      | ( ( SV103 = SV1 )
        = $true )
      | ( ( ssList @ SV103 )
        = $false )
      | ( ( ssList @ SV66 )
        = $false )
      | ( ( ssList @ SV1 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[827]) ).

thf(869,plain,
    ! [SV104: $i,SV67: $i,SV4: $i] :
      ( ( ( ~ ( ~ ( leq @ SV4 @ SV67 )
              | ~ ( lt @ SV67 @ SV104 ) ) )
        = $false )
      | ( ( lt @ SV4 @ SV104 )
        = $true )
      | ( ( ssItem @ SV104 )
        = $false )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[828]) ).

thf(870,plain,
    ! [SV105: $i,SV68: $i,SV5: $i] :
      ( ( ( ~ ( ~ ( gt @ SV5 @ SV68 )
              | ~ ( gt @ SV68 @ SV105 ) ) )
        = $false )
      | ( ( gt @ SV5 @ SV105 )
        = $true )
      | ( ( ssItem @ SV105 )
        = $false )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[829]) ).

thf(871,plain,
    ! [SV69: $i,SV7: $i] :
      ( ( ( segmentP @ SV7 @ SV69 )
        = $false )
      | ( ( ~ ( segmentP @ SV69 @ SV7 ) )
        = $true )
      | ( ( SV7 = SV69 )
        = $true )
      | ( ( ssList @ SV69 )
        = $false )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[830]) ).

thf(872,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( neq @ SV11 @ SV71 )
        = $false )
      | ( ( SV11 != SV71 )
        = $true )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[831]) ).

thf(873,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( SV11 != SV71 )
        = $false )
      | ( ( neq @ SV11 @ SV71 )
        = $true )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[832]) ).

thf(874,plain,
    ! [SV72: $i,SV12: $i] :
      ( ( ( leq @ SV12 @ SV72 )
        = $false )
      | ( ( ~ ( leq @ SV72 @ SV12 ) )
        = $true )
      | ( ( SV12 = SV72 )
        = $true )
      | ( ( ssItem @ SV72 )
        = $false )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[833]) ).

thf(875,plain,
    ! [SV17: $i,SV106: $i,SV75: $i] :
      ( ( ( ~ ( ~ ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
              | ( memberP @ SV75 @ SV17 )
              | ( memberP @ SV106 @ SV17 ) ) )
        = $false )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[834]) ).

thf(876,plain,
    ! [SV106: $i,SV17: $i,SV75: $i] :
      ( ( ( ~ ( ~ ( ( memberP @ SV75 @ SV17 )
                  | ( memberP @ SV106 @ SV17 ) )
              | ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 ) ) )
        = $false )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[834]) ).

thf(877,plain,
    ! [SV107: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ( ~ ( geq @ SV19 @ SV76 )
              | ~ ( geq @ SV76 @ SV107 ) ) )
        = $false )
      | ( ( geq @ SV19 @ SV107 )
        = $true )
      | ( ( ssItem @ SV107 )
        = $false )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[835]) ).

thf(878,plain,
    ! [SV108: $i,SV77: $i,SV20: $i] :
      ( ( ( ~ ( ~ ( leq @ SV20 @ SV77 )
              | ~ ( leq @ SV77 @ SV108 ) ) )
        = $false )
      | ( ( leq @ SV20 @ SV108 )
        = $true )
      | ( ( ssItem @ SV108 )
        = $false )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[836]) ).

thf(879,plain,
    ! [SV22: $i] :
      ( ( ( ~ ( ssItem @ ( sK7_SY159 @ SV22 ) ) )
        = $false )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[837]) ).

thf(880,plain,
    ! [SV22: $i] :
      ( ( ( ( hd @ SV22 )
         != ( sK7_SY159 @ SV22 ) )
        = $false )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[837]) ).

thf(881,plain,
    ! [SV23: $i,SV109: $i,SV79: $i] :
      ( ( ( ~ ( ~ ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
              | ( SV23 = SV79 )
              | ( memberP @ SV109 @ SV23 ) ) )
        = $false )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[838]) ).

thf(882,plain,
    ! [SV109: $i,SV79: $i,SV23: $i] :
      ( ( ( ~ ( ~ ( ( SV23 = SV79 )
                  | ( memberP @ SV109 @ SV23 ) )
              | ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 ) ) )
        = $false )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[838]) ).

thf(883,plain,
    ! [SV110: $i,SV80: $i,SV24: $i] :
      ( ( ( ~ ( ~ ( lt @ SV24 @ SV80 )
              | ~ ( lt @ SV80 @ SV110 ) ) )
        = $false )
      | ( ( lt @ SV24 @ SV110 )
        = $true )
      | ( ( ssItem @ SV110 )
        = $false )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[839]) ).

thf(884,plain,
    ! [SV81: $i,SV111: $i,SV25: $i,SV119: $i] :
      ( ( ( ~ ( ssList @ SV119 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
                  | ~ ( ( SV25 != SV81 )
                      | ~ ( frontsegP @ SV111 @ SV119 ) ) )
              | ~ ( ~ ~ ( ( SV25 != SV81 )
                        | ~ ( frontsegP @ SV111 @ SV119 ) )
                  | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[840]) ).

thf(885,plain,
    ! [SV112: $i,SV82: $i,SV26: $i] :
      ( ( ( ~ ( ~ ( segmentP @ SV26 @ SV82 )
              | ~ ( segmentP @ SV82 @ SV112 ) ) )
        = $false )
      | ( ( segmentP @ SV26 @ SV112 )
        = $true )
      | ( ( ssList @ SV112 )
        = $false )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[841]) ).

thf(886,plain,
    ! [SV113: $i,SV83: $i,SV27: $i] :
      ( ( ( ~ ( ~ ( frontsegP @ SV27 @ SV83 )
              | ~ ( frontsegP @ SV83 @ SV113 ) ) )
        = $false )
      | ( ( frontsegP @ SV27 @ SV113 )
        = $true )
      | ( ( ssList @ SV113 )
        = $false )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[842]) ).

thf(887,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( lt @ SV29 @ SV85 )
        = $false )
      | ( ( ~ ( ~ ( ( SV29 != SV85 ) )
              | ~ ( leq @ SV29 @ SV85 ) ) )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[843]) ).

thf(888,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( ( SV29 != SV85 ) )
              | ~ ( leq @ SV29 @ SV85 ) ) )
        = $false )
      | ( ( lt @ SV29 @ SV85 )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[844]) ).

thf(889,plain,
    ( ( ~ ( ssItem @ sK8_SY205 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[845]) ).

thf(890,plain,
    ( ( ~ ( ( sK2_SX0 != sK8_SY205 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[845]) ).

thf(891,plain,
    ! [SV87: $i,SV31: $i] :
      ( ( ( frontsegP @ SV31 @ SV87 )
        = $false )
      | ( ( ~ ( frontsegP @ SV87 @ SV31 ) )
        = $true )
      | ( ( SV31 = SV87 )
        = $true )
      | ( ( ssList @ SV87 )
        = $false )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[846]) ).

thf(892,plain,
    ( ( sK3_SX0 != sK5_SY222 )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[847]) ).

thf(893,plain,
    ( ( sK1_U != sK4_SY206 )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[847]) ).

thf(894,plain,
    ( ( neq @ sK3_SX0 @ nil )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[848]) ).

thf(895,plain,
    ( ( ( ! [SY235: $i] :
            ( ~ ( ssItem @ SY235 )
            | ( ( cons @ SY235 @ nil )
             != sK4_SY206 )
            | ~ ( memberP @ sK5_SY222 @ SY235 )
            | ~ ! [SY236: $i] :
                  ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY236 )
                                  | ~ ( ( SY235 != SY236 ) ) )
                            | ~ ( memberP @ sK5_SY222 @ SY236 ) )
                      | ~ ( leq @ SY235 @ SY236 ) ) ) )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[849]) ).

thf(896,plain,
    ! [SV115: $i,SV91: $i,SV38: $i] :
      ( ( ( ~ ( ~ ( rearsegP @ SV38 @ SV91 )
              | ~ ( rearsegP @ SV91 @ SV115 ) ) )
        = $false )
      | ( ( rearsegP @ SV38 @ SV115 )
        = $true )
      | ( ( ssList @ SV115 )
        = $false )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[850]) ).

thf(897,plain,
    ! [SV93: $i,SV41: $i] :
      ( ( ( geq @ SV41 @ SV93 )
        = $false )
      | ( ( ~ ( geq @ SV93 @ SV41 ) )
        = $true )
      | ( ( SV41 = SV93 )
        = $true )
      | ( ( ssItem @ SV93 )
        = $false )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[851]) ).

thf(898,plain,
    ! [SV42: $i] :
      ( ( ( ! [SY237: $i] :
              ~ ~ ( ~ ( ssItem @ SY237 )
                  | ( ( cons @ SY237 @ ( sK6_SY184 @ SV42 ) )
                   != SV42 ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[853]) ).

thf(899,plain,
    ! [SV94: $i,SV44: $i] :
      ( ( ( geq @ SV44 @ SV94 )
        = $false )
      | ( ( leq @ SV94 @ SV44 )
        = $true )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[854]) ).

thf(900,plain,
    ! [SV44: $i,SV94: $i] :
      ( ( ( leq @ SV94 @ SV44 )
        = $false )
      | ( ( geq @ SV44 @ SV94 )
        = $true )
      | ( ( ssItem @ SV94 )
        = $false )
      | ( ( ssItem @ SV44 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[855]) ).

thf(901,plain,
    ! [SV96: $i,SV49: $i,SV117: $i,SV120: $i] :
      ( ( ( ~ ( ssItem @ SV120 ) )
        = $true )
      | ( ( ( ( cons @ SV117 @ SV49 )
           != ( cons @ SV120 @ SV96 ) )
          | ~ ( ( SV117 != SV120 )
              | ( SV96 != SV49 ) ) )
        = $true )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[856]) ).

thf(902,plain,
    ! [SV51: $i] :
      ( ( ( ~ ( ssList @ ( sK9_SY191 @ SV51 ) ) )
        = $false )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[857]) ).

thf(903,plain,
    ! [SV51: $i] :
      ( ( ( ( tl @ SV51 )
         != ( sK9_SY191 @ SV51 ) )
        = $false )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[857]) ).

thf(904,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( ~ ( ssItem @ ( sK10_SY192 @ SV52 ) )
              | ( ( cons @ ( sK10_SY192 @ SV52 ) @ nil )
               != SV52 ) ) )
        = $true )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[858]) ).

thf(905,plain,
    ! [SV52: $i,SV121: $i] :
      ( ( ( ~ ( ~ ( ssItem @ SV121 )
              | ( ( cons @ SV121 @ nil )
               != SV52 ) ) )
        = $false )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[859]) ).

thf(906,plain,
    ! [SV97: $i,SV53: $i] :
      ( ( ( rearsegP @ SV53 @ SV97 )
        = $false )
      | ( ( ~ ( rearsegP @ SV97 @ SV53 ) )
        = $true )
      | ( ( SV53 = SV97 )
        = $true )
      | ( ( ssList @ SV97 )
        = $false )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[860]) ).

thf(907,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $false )
      | ( ( ~ ( ( nil != SV98 )
              | ( nil != SV54 ) ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[861]) ).

thf(908,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ~ ( ( nil != SV98 )
              | ( nil != SV54 ) ) )
        = $false )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[862]) ).

thf(909,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ~ ! [SY230: $i] :
                ~ ~ ( ~ ( ssList @ SY230 )
                    | ~ ~ ! [SY231: $i] :
                            ~ ~ ( ~ ( ssList @ SY231 )
                                | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                                 != SV59 ) ) ) )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[863]) ).

thf(910,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ! [SY232: $i] :
                ~ ~ ( ~ ( ssList @ SY232 )
                    | ~ ~ ! [SY233: $i] :
                            ~ ~ ( ~ ( ssList @ SY233 )
                                | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                                 != SV59 ) ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[864]) ).

thf(911,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( neq @ SV64 @ SV101 )
        = $false )
      | ( ( SV64 != SV101 )
        = $true )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[865]) ).

thf(912,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( SV64 != SV101 )
        = $false )
      | ( ( neq @ SV64 @ SV101 )
        = $true )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[866]) ).

thf(913,plain,
    ! [SV65: $i,SV118: $i,SV102: $i] :
      ( ( ( ( app @ SV102 @ SV118 )
          = ( app @ SV102 @ SV65 ) )
        = $false )
      | ( ( SV118 = SV65 )
        = $true )
      | ( ( ssList @ SV118 )
        = $false )
      | ( ( ssList @ SV102 )
        = $false )
      | ( ( ssList @ SV65 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[867]) ).

thf(914,plain,
    ! [SV104: $i,SV67: $i,SV4: $i] :
      ( ( ( ~ ( leq @ SV4 @ SV67 )
          | ~ ( lt @ SV67 @ SV104 ) )
        = $true )
      | ( ( lt @ SV4 @ SV104 )
        = $true )
      | ( ( ssItem @ SV104 )
        = $false )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[869]) ).

thf(915,plain,
    ! [SV105: $i,SV68: $i,SV5: $i] :
      ( ( ( ~ ( gt @ SV5 @ SV68 )
          | ~ ( gt @ SV68 @ SV105 ) )
        = $true )
      | ( ( gt @ SV5 @ SV105 )
        = $true )
      | ( ( ssItem @ SV105 )
        = $false )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[870]) ).

thf(916,plain,
    ! [SV7: $i,SV69: $i] :
      ( ( ( segmentP @ SV69 @ SV7 )
        = $false )
      | ( ( segmentP @ SV7 @ SV69 )
        = $false )
      | ( ( SV7 = SV69 )
        = $true )
      | ( ( ssList @ SV69 )
        = $false )
      | ( ( ssList @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[871]) ).

thf(917,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( SV11 = SV71 )
        = $false )
      | ( ( neq @ SV11 @ SV71 )
        = $false )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[872]) ).

thf(918,plain,
    ! [SV71: $i,SV11: $i] :
      ( ( ( SV11 = SV71 )
        = $true )
      | ( ( neq @ SV11 @ SV71 )
        = $true )
      | ( ( ssItem @ SV71 )
        = $false )
      | ( ( ssItem @ SV11 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[873]) ).

thf(919,plain,
    ! [SV12: $i,SV72: $i] :
      ( ( ( leq @ SV72 @ SV12 )
        = $false )
      | ( ( leq @ SV12 @ SV72 )
        = $false )
      | ( ( SV12 = SV72 )
        = $true )
      | ( ( ssItem @ SV72 )
        = $false )
      | ( ( ssItem @ SV12 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[874]) ).

thf(920,plain,
    ! [SV17: $i,SV106: $i,SV75: $i] :
      ( ( ( ~ ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
          | ( memberP @ SV75 @ SV17 )
          | ( memberP @ SV106 @ SV17 ) )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[875]) ).

thf(921,plain,
    ! [SV106: $i,SV17: $i,SV75: $i] :
      ( ( ( ~ ( ( memberP @ SV75 @ SV17 )
              | ( memberP @ SV106 @ SV17 ) )
          | ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 ) )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[876]) ).

thf(922,plain,
    ! [SV107: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ( geq @ SV19 @ SV76 )
          | ~ ( geq @ SV76 @ SV107 ) )
        = $true )
      | ( ( geq @ SV19 @ SV107 )
        = $true )
      | ( ( ssItem @ SV107 )
        = $false )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[877]) ).

thf(923,plain,
    ! [SV108: $i,SV77: $i,SV20: $i] :
      ( ( ( ~ ( leq @ SV20 @ SV77 )
          | ~ ( leq @ SV77 @ SV108 ) )
        = $true )
      | ( ( leq @ SV20 @ SV108 )
        = $true )
      | ( ( ssItem @ SV108 )
        = $false )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[878]) ).

thf(924,plain,
    ! [SV22: $i] :
      ( ( ( ssItem @ ( sK7_SY159 @ SV22 ) )
        = $true )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[879]) ).

thf(925,plain,
    ! [SV22: $i] :
      ( ( ( ( hd @ SV22 )
          = ( sK7_SY159 @ SV22 ) )
        = $true )
      | ( ( nil = SV22 )
        = $true )
      | ( ( ssList @ SV22 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[880]) ).

thf(926,plain,
    ! [SV23: $i,SV109: $i,SV79: $i] :
      ( ( ( ~ ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
          | ( SV23 = SV79 )
          | ( memberP @ SV109 @ SV23 ) )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[881]) ).

thf(927,plain,
    ! [SV109: $i,SV79: $i,SV23: $i] :
      ( ( ( ~ ( ( SV23 = SV79 )
              | ( memberP @ SV109 @ SV23 ) )
          | ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 ) )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[882]) ).

thf(928,plain,
    ! [SV110: $i,SV80: $i,SV24: $i] :
      ( ( ( ~ ( lt @ SV24 @ SV80 )
          | ~ ( lt @ SV80 @ SV110 ) )
        = $true )
      | ( ( lt @ SV24 @ SV110 )
        = $true )
      | ( ( ssItem @ SV110 )
        = $false )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[883]) ).

thf(929,plain,
    ! [SV81: $i,SV111: $i,SV25: $i,SV119: $i] :
      ( ( ( ssList @ SV119 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
                  | ~ ( ( SV25 != SV81 )
                      | ~ ( frontsegP @ SV111 @ SV119 ) ) )
              | ~ ( ~ ~ ( ( SV25 != SV81 )
                        | ~ ( frontsegP @ SV111 @ SV119 ) )
                  | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) ) ) ) )
        = $true )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[884]) ).

thf(930,plain,
    ! [SV112: $i,SV82: $i,SV26: $i] :
      ( ( ( ~ ( segmentP @ SV26 @ SV82 )
          | ~ ( segmentP @ SV82 @ SV112 ) )
        = $true )
      | ( ( segmentP @ SV26 @ SV112 )
        = $true )
      | ( ( ssList @ SV112 )
        = $false )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[885]) ).

thf(931,plain,
    ! [SV113: $i,SV83: $i,SV27: $i] :
      ( ( ( ~ ( frontsegP @ SV27 @ SV83 )
          | ~ ( frontsegP @ SV83 @ SV113 ) )
        = $true )
      | ( ( frontsegP @ SV27 @ SV113 )
        = $true )
      | ( ( ssList @ SV113 )
        = $false )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[886]) ).

thf(932,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ( SV29 != SV85 ) )
          | ~ ( leq @ SV29 @ SV85 ) )
        = $false )
      | ( ( lt @ SV29 @ SV85 )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[887]) ).

thf(933,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ( SV29 != SV85 ) )
          | ~ ( leq @ SV29 @ SV85 ) )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[888]) ).

thf(934,plain,
    ( ( ssItem @ sK8_SY205 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[889]) ).

thf(935,plain,
    ( ( sK2_SX0 != sK8_SY205 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[890]) ).

thf(936,plain,
    ! [SV31: $i,SV87: $i] :
      ( ( ( frontsegP @ SV87 @ SV31 )
        = $false )
      | ( ( frontsegP @ SV31 @ SV87 )
        = $false )
      | ( ( SV31 = SV87 )
        = $true )
      | ( ( ssList @ SV87 )
        = $false )
      | ( ( ssList @ SV31 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[891]) ).

thf(937,plain,
    ( ( sK3_SX0 = sK5_SY222 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[892]) ).

thf(938,plain,
    ( ( sK1_U = sK4_SY206 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[893]) ).

thf(939,plain,
    ( ( ( ~ ( ssItem @ sK11_SY235 )
        | ( ( cons @ sK11_SY235 @ nil )
         != sK4_SY206 )
        | ~ ( memberP @ sK5_SY222 @ sK11_SY235 )
        | ~ ! [SY240: $i] :
              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY240 )
                              | ~ ( ( sK11_SY235 != SY240 ) ) )
                        | ~ ( memberP @ sK5_SY222 @ SY240 ) )
                  | ~ ( leq @ sK11_SY235 @ SY240 ) ) )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[895]) ).

thf(940,plain,
    ! [SV115: $i,SV91: $i,SV38: $i] :
      ( ( ( ~ ( rearsegP @ SV38 @ SV91 )
          | ~ ( rearsegP @ SV91 @ SV115 ) )
        = $true )
      | ( ( rearsegP @ SV38 @ SV115 )
        = $true )
      | ( ( ssList @ SV115 )
        = $false )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[896]) ).

thf(941,plain,
    ! [SV41: $i,SV93: $i] :
      ( ( ( geq @ SV93 @ SV41 )
        = $false )
      | ( ( geq @ SV41 @ SV93 )
        = $false )
      | ( ( SV41 = SV93 )
        = $true )
      | ( ( ssItem @ SV93 )
        = $false )
      | ( ( ssItem @ SV41 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[897]) ).

thf(942,plain,
    ! [SV42: $i] :
      ( ( ( ~ ~ ( ~ ( ssItem @ ( sK12_SY237 @ SV42 ) )
                | ( ( cons @ ( sK12_SY237 @ SV42 ) @ ( sK6_SY184 @ SV42 ) )
                 != SV42 ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[898]) ).

thf(943,plain,
    ! [SV96: $i,SV49: $i,SV117: $i,SV120: $i] :
      ( ( ( ssItem @ SV120 )
        = $false )
      | ( ( ( ( cons @ SV117 @ SV49 )
           != ( cons @ SV120 @ SV96 ) )
          | ~ ( ( SV117 != SV120 )
              | ( SV96 != SV49 ) ) )
        = $true )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[901]) ).

thf(944,plain,
    ! [SV51: $i] :
      ( ( ( ssList @ ( sK9_SY191 @ SV51 ) )
        = $true )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[902]) ).

thf(945,plain,
    ! [SV51: $i] :
      ( ( ( ( tl @ SV51 )
          = ( sK9_SY191 @ SV51 ) )
        = $true )
      | ( ( nil = SV51 )
        = $true )
      | ( ( ssList @ SV51 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[903]) ).

thf(946,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( ssItem @ ( sK10_SY192 @ SV52 ) )
          | ( ( cons @ ( sK10_SY192 @ SV52 ) @ nil )
           != SV52 ) )
        = $false )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(947,plain,
    ! [SV52: $i,SV121: $i] :
      ( ( ( ~ ( ssItem @ SV121 )
          | ( ( cons @ SV121 @ nil )
           != SV52 ) )
        = $true )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[905]) ).

thf(948,plain,
    ! [SV53: $i,SV97: $i] :
      ( ( ( rearsegP @ SV97 @ SV53 )
        = $false )
      | ( ( rearsegP @ SV53 @ SV97 )
        = $false )
      | ( ( SV53 = SV97 )
        = $true )
      | ( ( ssList @ SV97 )
        = $false )
      | ( ( ssList @ SV53 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[906]) ).

thf(949,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ( nil != SV98 )
          | ( nil != SV54 ) )
        = $false )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[907]) ).

thf(950,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( ( nil != SV98 )
          | ( nil != SV54 ) )
        = $true )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[908]) ).

thf(951,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ! [SY230: $i] :
              ~ ~ ( ~ ( ssList @ SY230 )
                  | ~ ~ ! [SY231: $i] :
                          ~ ~ ( ~ ( ssList @ SY231 )
                              | ( ( app @ SY230 @ ( cons @ SV99 @ SY231 ) )
                               != SV59 ) ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[909]) ).

thf(952,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ! [SY232: $i] :
              ~ ~ ( ~ ( ssList @ SY232 )
                  | ~ ~ ! [SY233: $i] :
                          ~ ~ ( ~ ( ssList @ SY233 )
                              | ( ( app @ SY232 @ ( cons @ SV99 @ SY233 ) )
                               != SV59 ) ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[910]) ).

thf(953,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( SV64 = SV101 )
        = $false )
      | ( ( neq @ SV64 @ SV101 )
        = $false )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[911]) ).

thf(954,plain,
    ! [SV101: $i,SV64: $i] :
      ( ( ( SV64 = SV101 )
        = $true )
      | ( ( neq @ SV64 @ SV101 )
        = $true )
      | ( ( ssList @ SV101 )
        = $false )
      | ( ( ssList @ SV64 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[912]) ).

thf(955,plain,
    ! [SV104: $i,SV67: $i,SV4: $i] :
      ( ( ( ~ ( leq @ SV4 @ SV67 ) )
        = $true )
      | ( ( ~ ( lt @ SV67 @ SV104 ) )
        = $true )
      | ( ( lt @ SV4 @ SV104 )
        = $true )
      | ( ( ssItem @ SV104 )
        = $false )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[914]) ).

thf(956,plain,
    ! [SV105: $i,SV68: $i,SV5: $i] :
      ( ( ( ~ ( gt @ SV5 @ SV68 ) )
        = $true )
      | ( ( ~ ( gt @ SV68 @ SV105 ) )
        = $true )
      | ( ( gt @ SV5 @ SV105 )
        = $true )
      | ( ( ssItem @ SV105 )
        = $false )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[915]) ).

thf(957,plain,
    ! [SV17: $i,SV106: $i,SV75: $i] :
      ( ( ( ~ ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 ) )
        = $true )
      | ( ( ( memberP @ SV75 @ SV17 )
          | ( memberP @ SV106 @ SV17 ) )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[920]) ).

thf(958,plain,
    ! [SV106: $i,SV17: $i,SV75: $i] :
      ( ( ( ~ ( ( memberP @ SV75 @ SV17 )
              | ( memberP @ SV106 @ SV17 ) ) )
        = $true )
      | ( ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[921]) ).

thf(959,plain,
    ! [SV107: $i,SV76: $i,SV19: $i] :
      ( ( ( ~ ( geq @ SV19 @ SV76 ) )
        = $true )
      | ( ( ~ ( geq @ SV76 @ SV107 ) )
        = $true )
      | ( ( geq @ SV19 @ SV107 )
        = $true )
      | ( ( ssItem @ SV107 )
        = $false )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[922]) ).

thf(960,plain,
    ! [SV108: $i,SV77: $i,SV20: $i] :
      ( ( ( ~ ( leq @ SV20 @ SV77 ) )
        = $true )
      | ( ( ~ ( leq @ SV77 @ SV108 ) )
        = $true )
      | ( ( leq @ SV20 @ SV108 )
        = $true )
      | ( ( ssItem @ SV108 )
        = $false )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[923]) ).

thf(961,plain,
    ! [SV23: $i,SV109: $i,SV79: $i] :
      ( ( ( ~ ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 ) )
        = $true )
      | ( ( ( SV23 = SV79 )
          | ( memberP @ SV109 @ SV23 ) )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[926]) ).

thf(962,plain,
    ! [SV109: $i,SV79: $i,SV23: $i] :
      ( ( ( ~ ( ( SV23 = SV79 )
              | ( memberP @ SV109 @ SV23 ) ) )
        = $true )
      | ( ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[927]) ).

thf(963,plain,
    ! [SV110: $i,SV80: $i,SV24: $i] :
      ( ( ( ~ ( lt @ SV24 @ SV80 ) )
        = $true )
      | ( ( ~ ( lt @ SV80 @ SV110 ) )
        = $true )
      | ( ( lt @ SV24 @ SV110 )
        = $true )
      | ( ( ssItem @ SV110 )
        = $false )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[928]) ).

thf(964,plain,
    ! [SV119: $i,SV81: $i,SV111: $i,SV25: $i] :
      ( ( ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
              | ~ ( ( SV25 != SV81 )
                  | ~ ( frontsegP @ SV111 @ SV119 ) ) )
          | ~ ( ~ ~ ( ( SV25 != SV81 )
                    | ~ ( frontsegP @ SV111 @ SV119 ) )
              | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) ) ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[929]) ).

thf(965,plain,
    ! [SV112: $i,SV82: $i,SV26: $i] :
      ( ( ( ~ ( segmentP @ SV26 @ SV82 ) )
        = $true )
      | ( ( ~ ( segmentP @ SV82 @ SV112 ) )
        = $true )
      | ( ( segmentP @ SV26 @ SV112 )
        = $true )
      | ( ( ssList @ SV112 )
        = $false )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[930]) ).

thf(966,plain,
    ! [SV113: $i,SV83: $i,SV27: $i] :
      ( ( ( ~ ( frontsegP @ SV27 @ SV83 ) )
        = $true )
      | ( ( ~ ( frontsegP @ SV83 @ SV113 ) )
        = $true )
      | ( ( frontsegP @ SV27 @ SV113 )
        = $true )
      | ( ( ssList @ SV113 )
        = $false )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[931]) ).

thf(967,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ( SV29 != SV85 ) ) )
        = $false )
      | ( ( lt @ SV29 @ SV85 )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[932]) ).

thf(968,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( leq @ SV29 @ SV85 ) )
        = $false )
      | ( ( lt @ SV29 @ SV85 )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[932]) ).

thf(969,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( ~ ( ( SV29 != SV85 ) ) )
        = $true )
      | ( ( ~ ( leq @ SV29 @ SV85 ) )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[933]) ).

thf(970,plain,
    ( ( sK2_SX0 = sK8_SY205 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[935]) ).

thf(971,plain,
    ( ( ( ~ ( ssItem @ sK11_SY235 ) )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[939]) ).

thf(972,plain,
    ( ( ( ( ( cons @ sK11_SY235 @ nil )
         != sK4_SY206 )
        | ~ ( memberP @ sK5_SY222 @ sK11_SY235 )
        | ~ ! [SY240: $i] :
              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY240 )
                              | ~ ( ( sK11_SY235 != SY240 ) ) )
                        | ~ ( memberP @ sK5_SY222 @ SY240 ) )
                  | ~ ( leq @ sK11_SY235 @ SY240 ) ) )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[939]) ).

thf(973,plain,
    ! [SV115: $i,SV91: $i,SV38: $i] :
      ( ( ( ~ ( rearsegP @ SV38 @ SV91 ) )
        = $true )
      | ( ( ~ ( rearsegP @ SV91 @ SV115 ) )
        = $true )
      | ( ( rearsegP @ SV38 @ SV115 )
        = $true )
      | ( ( ssList @ SV115 )
        = $false )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[940]) ).

thf(974,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( ~ ( ssItem @ ( sK12_SY237 @ SV42 ) )
              | ( ( cons @ ( sK12_SY237 @ SV42 ) @ ( sK6_SY184 @ SV42 ) )
               != SV42 ) ) )
        = $true )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[942]) ).

thf(975,plain,
    ! [SV96: $i,SV120: $i,SV49: $i,SV117: $i] :
      ( ( ( ( cons @ SV117 @ SV49 )
         != ( cons @ SV120 @ SV96 ) )
        = $true )
      | ( ( ~ ( ( SV117 != SV120 )
              | ( SV96 != SV49 ) ) )
        = $true )
      | ( ( ssItem @ SV120 )
        = $false )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[943]) ).

thf(976,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( ssItem @ ( sK10_SY192 @ SV52 ) ) )
        = $false )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[946]) ).

thf(977,plain,
    ! [SV52: $i] :
      ( ( ( ( cons @ ( sK10_SY192 @ SV52 ) @ nil )
         != SV52 )
        = $false )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[946]) ).

thf(978,plain,
    ! [SV52: $i,SV121: $i] :
      ( ( ( ~ ( ssItem @ SV121 ) )
        = $true )
      | ( ( ( cons @ SV121 @ nil )
         != SV52 )
        = $true )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[947]) ).

thf(979,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( nil != SV98 )
        = $false )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[949]) ).

thf(980,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( nil != SV54 )
        = $false )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[949]) ).

thf(981,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( nil != SV98 )
        = $true )
      | ( ( nil != SV54 )
        = $true )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[950]) ).

thf(982,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ~ ( ~ ( ssList @ ( sK13_SY230 @ SV59 @ SV99 ) )
                | ~ ~ ! [SY241: $i] :
                        ~ ~ ( ~ ( ssList @ SY241 )
                            | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ SY241 ) )
                             != SV59 ) ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[951]) ).

thf(983,plain,
    ! [SV59: $i,SV99: $i,SV122: $i] :
      ( ( ( ~ ~ ( ~ ( ssList @ SV122 )
                | ~ ~ ! [SY242: $i] :
                        ~ ~ ( ~ ( ssList @ SY242 )
                            | ( ( app @ SV122 @ ( cons @ SV99 @ SY242 ) )
                             != SV59 ) ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[952]) ).

thf(984,plain,
    ! [SV104: $i,SV67: $i,SV4: $i] :
      ( ( ( leq @ SV4 @ SV67 )
        = $false )
      | ( ( ~ ( lt @ SV67 @ SV104 ) )
        = $true )
      | ( ( lt @ SV4 @ SV104 )
        = $true )
      | ( ( ssItem @ SV104 )
        = $false )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[955]) ).

thf(985,plain,
    ! [SV105: $i,SV68: $i,SV5: $i] :
      ( ( ( gt @ SV5 @ SV68 )
        = $false )
      | ( ( ~ ( gt @ SV68 @ SV105 ) )
        = $true )
      | ( ( gt @ SV5 @ SV105 )
        = $true )
      | ( ( ssItem @ SV105 )
        = $false )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[956]) ).

thf(986,plain,
    ! [SV17: $i,SV106: $i,SV75: $i] :
      ( ( ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
        = $false )
      | ( ( ( memberP @ SV75 @ SV17 )
          | ( memberP @ SV106 @ SV17 ) )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[957]) ).

thf(987,plain,
    ! [SV106: $i,SV17: $i,SV75: $i] :
      ( ( ( ( memberP @ SV75 @ SV17 )
          | ( memberP @ SV106 @ SV17 ) )
        = $false )
      | ( ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[958]) ).

thf(988,plain,
    ! [SV107: $i,SV76: $i,SV19: $i] :
      ( ( ( geq @ SV19 @ SV76 )
        = $false )
      | ( ( ~ ( geq @ SV76 @ SV107 ) )
        = $true )
      | ( ( geq @ SV19 @ SV107 )
        = $true )
      | ( ( ssItem @ SV107 )
        = $false )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[959]) ).

thf(989,plain,
    ! [SV108: $i,SV77: $i,SV20: $i] :
      ( ( ( leq @ SV20 @ SV77 )
        = $false )
      | ( ( ~ ( leq @ SV77 @ SV108 ) )
        = $true )
      | ( ( leq @ SV20 @ SV108 )
        = $true )
      | ( ( ssItem @ SV108 )
        = $false )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[960]) ).

thf(990,plain,
    ! [SV23: $i,SV109: $i,SV79: $i] :
      ( ( ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
        = $false )
      | ( ( ( SV23 = SV79 )
          | ( memberP @ SV109 @ SV23 ) )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[961]) ).

thf(991,plain,
    ! [SV109: $i,SV79: $i,SV23: $i] :
      ( ( ( ( SV23 = SV79 )
          | ( memberP @ SV109 @ SV23 ) )
        = $false )
      | ( ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[962]) ).

thf(992,plain,
    ! [SV110: $i,SV80: $i,SV24: $i] :
      ( ( ( lt @ SV24 @ SV80 )
        = $false )
      | ( ( ~ ( lt @ SV80 @ SV110 ) )
        = $true )
      | ( ( lt @ SV24 @ SV110 )
        = $true )
      | ( ( ssItem @ SV110 )
        = $false )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[963]) ).

thf(993,plain,
    ! [SV119: $i,SV81: $i,SV111: $i,SV25: $i] :
      ( ( ( ~ ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
              | ~ ( ( SV25 != SV81 )
                  | ~ ( frontsegP @ SV111 @ SV119 ) ) ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[964]) ).

thf(994,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( ~ ( ~ ~ ( ( SV25 != SV81 )
                    | ~ ( frontsegP @ SV111 @ SV119 ) )
              | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) ) ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[964]) ).

thf(995,plain,
    ! [SV112: $i,SV82: $i,SV26: $i] :
      ( ( ( segmentP @ SV26 @ SV82 )
        = $false )
      | ( ( ~ ( segmentP @ SV82 @ SV112 ) )
        = $true )
      | ( ( segmentP @ SV26 @ SV112 )
        = $true )
      | ( ( ssList @ SV112 )
        = $false )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[965]) ).

thf(996,plain,
    ! [SV113: $i,SV83: $i,SV27: $i] :
      ( ( ( frontsegP @ SV27 @ SV83 )
        = $false )
      | ( ( ~ ( frontsegP @ SV83 @ SV113 ) )
        = $true )
      | ( ( frontsegP @ SV27 @ SV113 )
        = $true )
      | ( ( ssList @ SV113 )
        = $false )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[966]) ).

thf(997,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( SV29 != SV85 )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[967]) ).

thf(998,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( leq @ SV29 @ SV85 )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[968]) ).

thf(999,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( SV29 != SV85 )
        = $false )
      | ( ( ~ ( leq @ SV29 @ SV85 ) )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[969]) ).

thf(1000,plain,
    ( ( ( ssItem @ sK11_SY235 )
      = $true )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[971]) ).

thf(1001,plain,
    ( ( ( ( ( cons @ sK11_SY235 @ nil )
         != sK4_SY206 )
        | ~ ( memberP @ sK5_SY222 @ sK11_SY235 ) )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[972]) ).

thf(1002,plain,
    ( ( ( ~ ! [SY240: $i] :
              ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY240 )
                              | ~ ( ( sK11_SY235 != SY240 ) ) )
                        | ~ ( memberP @ sK5_SY222 @ SY240 ) )
                  | ~ ( leq @ sK11_SY235 @ SY240 ) ) )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[972]) ).

thf(1003,plain,
    ! [SV115: $i,SV91: $i,SV38: $i] :
      ( ( ( rearsegP @ SV38 @ SV91 )
        = $false )
      | ( ( ~ ( rearsegP @ SV91 @ SV115 ) )
        = $true )
      | ( ( rearsegP @ SV38 @ SV115 )
        = $true )
      | ( ( ssList @ SV115 )
        = $false )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[973]) ).

thf(1004,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( ssItem @ ( sK12_SY237 @ SV42 ) )
          | ( ( cons @ ( sK12_SY237 @ SV42 ) @ ( sK6_SY184 @ SV42 ) )
           != SV42 ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[974]) ).

thf(1005,plain,
    ! [SV96: $i,SV120: $i,SV49: $i,SV117: $i] :
      ( ( ( ( cons @ SV117 @ SV49 )
          = ( cons @ SV120 @ SV96 ) )
        = $false )
      | ( ( ~ ( ( SV117 != SV120 )
              | ( SV96 != SV49 ) ) )
        = $true )
      | ( ( ssItem @ SV120 )
        = $false )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[975]) ).

thf(1006,plain,
    ! [SV52: $i] :
      ( ( ( ssItem @ ( sK10_SY192 @ SV52 ) )
        = $true )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[976]) ).

thf(1007,plain,
    ! [SV52: $i] :
      ( ( ( ( cons @ ( sK10_SY192 @ SV52 ) @ nil )
          = SV52 )
        = $true )
      | ( ( singletonP @ SV52 )
        = $false )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[977]) ).

thf(1008,plain,
    ! [SV52: $i,SV121: $i] :
      ( ( ( ssItem @ SV121 )
        = $false )
      | ( ( ( cons @ SV121 @ nil )
         != SV52 )
        = $true )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[978]) ).

thf(1009,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( nil = SV98 )
        = $true )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[979]) ).

thf(1010,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( nil = SV54 )
        = $true )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $false )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[980]) ).

thf(1011,plain,
    ! [SV54: $i,SV98: $i] :
      ( ( ( nil = SV98 )
        = $false )
      | ( ( nil != SV54 )
        = $true )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[981]) ).

thf(1012,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ( ~ ( ssList @ ( sK13_SY230 @ SV59 @ SV99 ) )
              | ~ ~ ! [SY241: $i] :
                      ~ ~ ( ~ ( ssList @ SY241 )
                          | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ SY241 ) )
                           != SV59 ) ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[982]) ).

thf(1013,plain,
    ! [SV59: $i,SV99: $i,SV122: $i] :
      ( ( ( ~ ( ~ ( ssList @ SV122 )
              | ~ ~ ! [SY242: $i] :
                      ~ ~ ( ~ ( ssList @ SY242 )
                          | ( ( app @ SV122 @ ( cons @ SV99 @ SY242 ) )
                           != SV59 ) ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[983]) ).

thf(1014,plain,
    ! [SV4: $i,SV104: $i,SV67: $i] :
      ( ( ( lt @ SV67 @ SV104 )
        = $false )
      | ( ( leq @ SV4 @ SV67 )
        = $false )
      | ( ( lt @ SV4 @ SV104 )
        = $true )
      | ( ( ssItem @ SV104 )
        = $false )
      | ( ( ssItem @ SV67 )
        = $false )
      | ( ( ssItem @ SV4 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[984]) ).

thf(1015,plain,
    ! [SV5: $i,SV105: $i,SV68: $i] :
      ( ( ( gt @ SV68 @ SV105 )
        = $false )
      | ( ( gt @ SV5 @ SV68 )
        = $false )
      | ( ( gt @ SV5 @ SV105 )
        = $true )
      | ( ( ssItem @ SV105 )
        = $false )
      | ( ( ssItem @ SV68 )
        = $false )
      | ( ( ssItem @ SV5 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[985]) ).

thf(1016,plain,
    ! [SV106: $i,SV17: $i,SV75: $i] :
      ( ( ( memberP @ SV75 @ SV17 )
        = $true )
      | ( ( memberP @ SV106 @ SV17 )
        = $true )
      | ( ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
        = $false )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[986]) ).

thf(1017,plain,
    ! [SV106: $i,SV17: $i,SV75: $i] :
      ( ( ( memberP @ SV75 @ SV17 )
        = $false )
      | ( ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[987]) ).

thf(1018,plain,
    ! [SV75: $i,SV17: $i,SV106: $i] :
      ( ( ( memberP @ SV106 @ SV17 )
        = $false )
      | ( ( memberP @ ( app @ SV75 @ SV106 ) @ SV17 )
        = $true )
      | ( ( ssList @ SV106 )
        = $false )
      | ( ( ssList @ SV75 )
        = $false )
      | ( ( ssItem @ SV17 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[987]) ).

thf(1019,plain,
    ! [SV19: $i,SV107: $i,SV76: $i] :
      ( ( ( geq @ SV76 @ SV107 )
        = $false )
      | ( ( geq @ SV19 @ SV76 )
        = $false )
      | ( ( geq @ SV19 @ SV107 )
        = $true )
      | ( ( ssItem @ SV107 )
        = $false )
      | ( ( ssItem @ SV76 )
        = $false )
      | ( ( ssItem @ SV19 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[988]) ).

thf(1020,plain,
    ! [SV20: $i,SV108: $i,SV77: $i] :
      ( ( ( leq @ SV77 @ SV108 )
        = $false )
      | ( ( leq @ SV20 @ SV77 )
        = $false )
      | ( ( leq @ SV20 @ SV108 )
        = $true )
      | ( ( ssItem @ SV108 )
        = $false )
      | ( ( ssItem @ SV77 )
        = $false )
      | ( ( ssItem @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[989]) ).

thf(1021,plain,
    ! [SV109: $i,SV79: $i,SV23: $i] :
      ( ( ( SV23 = SV79 )
        = $true )
      | ( ( memberP @ SV109 @ SV23 )
        = $true )
      | ( ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
        = $false )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[990]) ).

thf(1022,plain,
    ! [SV109: $i,SV79: $i,SV23: $i] :
      ( ( ( SV23 = SV79 )
        = $false )
      | ( ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[991]) ).

thf(1023,plain,
    ! [SV79: $i,SV23: $i,SV109: $i] :
      ( ( ( memberP @ SV109 @ SV23 )
        = $false )
      | ( ( memberP @ ( cons @ SV79 @ SV109 ) @ SV23 )
        = $true )
      | ( ( ssList @ SV109 )
        = $false )
      | ( ( ssItem @ SV79 )
        = $false )
      | ( ( ssItem @ SV23 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[991]) ).

thf(1024,plain,
    ! [SV24: $i,SV110: $i,SV80: $i] :
      ( ( ( lt @ SV80 @ SV110 )
        = $false )
      | ( ( lt @ SV24 @ SV80 )
        = $false )
      | ( ( lt @ SV24 @ SV110 )
        = $true )
      | ( ( ssItem @ SV110 )
        = $false )
      | ( ( ssItem @ SV80 )
        = $false )
      | ( ( ssItem @ SV24 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[992]) ).

thf(1025,plain,
    ! [SV119: $i,SV81: $i,SV111: $i,SV25: $i] :
      ( ( ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
          | ~ ( ( SV25 != SV81 )
              | ~ ( frontsegP @ SV111 @ SV119 ) ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[993]) ).

thf(1026,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( ~ ~ ( ( SV25 != SV81 )
                | ~ ( frontsegP @ SV111 @ SV119 ) )
          | ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[994]) ).

thf(1027,plain,
    ! [SV26: $i,SV112: $i,SV82: $i] :
      ( ( ( segmentP @ SV82 @ SV112 )
        = $false )
      | ( ( segmentP @ SV26 @ SV82 )
        = $false )
      | ( ( segmentP @ SV26 @ SV112 )
        = $true )
      | ( ( ssList @ SV112 )
        = $false )
      | ( ( ssList @ SV82 )
        = $false )
      | ( ( ssList @ SV26 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[995]) ).

thf(1028,plain,
    ! [SV27: $i,SV113: $i,SV83: $i] :
      ( ( ( frontsegP @ SV83 @ SV113 )
        = $false )
      | ( ( frontsegP @ SV27 @ SV83 )
        = $false )
      | ( ( frontsegP @ SV27 @ SV113 )
        = $true )
      | ( ( ssList @ SV113 )
        = $false )
      | ( ( ssList @ SV83 )
        = $false )
      | ( ( ssList @ SV27 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[996]) ).

thf(1029,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( SV29 = SV85 )
        = $false )
      | ( ( lt @ SV29 @ SV85 )
        = $false )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[997]) ).

thf(1030,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( SV29 = SV85 )
        = $true )
      | ( ( ~ ( leq @ SV29 @ SV85 ) )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[999]) ).

thf(1031,plain,
    ( ( ( ( nil != sK5_SY222 )
        | ( nil != sK4_SY206 ) )
      = $false )
    | ( ( ssItem @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1000]) ).

thf(1032,plain,
    ( ( ( ( cons @ sK11_SY235 @ nil )
       != sK4_SY206 )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1001]) ).

thf(1033,plain,
    ( ( ( ~ ( memberP @ sK5_SY222 @ sK11_SY235 ) )
      = $false )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1001]) ).

thf(1034,plain,
    ( ( ( ! [SY240: $i] :
            ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SY240 )
                            | ~ ( ( sK11_SY235 != SY240 ) ) )
                      | ~ ( memberP @ sK5_SY222 @ SY240 ) )
                | ~ ( leq @ sK11_SY235 @ SY240 ) ) )
      = $true )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1002]) ).

thf(1035,plain,
    ! [SV38: $i,SV115: $i,SV91: $i] :
      ( ( ( rearsegP @ SV91 @ SV115 )
        = $false )
      | ( ( rearsegP @ SV38 @ SV91 )
        = $false )
      | ( ( rearsegP @ SV38 @ SV115 )
        = $true )
      | ( ( ssList @ SV115 )
        = $false )
      | ( ( ssList @ SV91 )
        = $false )
      | ( ( ssList @ SV38 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1003]) ).

thf(1036,plain,
    ! [SV42: $i] :
      ( ( ( ~ ( ssItem @ ( sK12_SY237 @ SV42 ) ) )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1004]) ).

thf(1037,plain,
    ! [SV42: $i] :
      ( ( ( ( cons @ ( sK12_SY237 @ SV42 ) @ ( sK6_SY184 @ SV42 ) )
         != SV42 )
        = $false )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1004]) ).

thf(1038,plain,
    ! [SV49: $i,SV96: $i,SV120: $i,SV117: $i] :
      ( ( ( ( SV117 != SV120 )
          | ( SV96 != SV49 ) )
        = $false )
      | ( ( ( cons @ SV117 @ SV49 )
          = ( cons @ SV120 @ SV96 ) )
        = $false )
      | ( ( ssItem @ SV120 )
        = $false )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1005]) ).

thf(1039,plain,
    ! [SV52: $i,SV121: $i] :
      ( ( ( ( cons @ SV121 @ nil )
          = SV52 )
        = $false )
      | ( ( ssItem @ SV121 )
        = $false )
      | ( ( singletonP @ SV52 )
        = $true )
      | ( ( ssList @ SV52 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1008]) ).

thf(1040,plain,
    ! [SV98: $i,SV54: $i] :
      ( ( ( nil = SV54 )
        = $false )
      | ( ( nil = SV98 )
        = $false )
      | ( ( nil
          = ( app @ SV54 @ SV98 ) )
        = $true )
      | ( ( ssList @ SV98 )
        = $false )
      | ( ( ssList @ SV54 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1011]) ).

thf(1041,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ( ssList @ ( sK13_SY230 @ SV59 @ SV99 ) )
          | ~ ~ ! [SY241: $i] :
                  ~ ~ ( ~ ( ssList @ SY241 )
                      | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ SY241 ) )
                       != SV59 ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1012]) ).

thf(1042,plain,
    ! [SV59: $i,SV99: $i,SV122: $i] :
      ( ( ( ~ ( ssList @ SV122 )
          | ~ ~ ! [SY242: $i] :
                  ~ ~ ( ~ ( ssList @ SY242 )
                      | ( ( app @ SV122 @ ( cons @ SV99 @ SY242 ) )
                       != SV59 ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1013]) ).

thf(1043,plain,
    ! [SV119: $i,SV81: $i,SV111: $i,SV25: $i] :
      ( ( ( ~ ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) ) )
        = $true )
      | ( ( ~ ( ( SV25 != SV81 )
              | ~ ( frontsegP @ SV111 @ SV119 ) ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1025]) ).

thf(1044,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( ~ ~ ( ( SV25 != SV81 )
                | ~ ( frontsegP @ SV111 @ SV119 ) ) )
        = $true )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1026]) ).

thf(1045,plain,
    ! [SV85: $i,SV29: $i] :
      ( ( ( leq @ SV29 @ SV85 )
        = $false )
      | ( ( SV29 = SV85 )
        = $true )
      | ( ( lt @ SV29 @ SV85 )
        = $true )
      | ( ( ssItem @ SV85 )
        = $false )
      | ( ( ssItem @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1030]) ).

thf(1046,plain,
    ( ( ( nil != sK5_SY222 )
      = $false )
    | ( ( ssItem @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1031]) ).

thf(1047,plain,
    ( ( ( nil != sK4_SY206 )
      = $false )
    | ( ( ssItem @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1031]) ).

thf(1048,plain,
    ( ( ( ( cons @ sK11_SY235 @ nil )
        = sK4_SY206 )
      = $true )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1032]) ).

thf(1049,plain,
    ( ( ( memberP @ sK5_SY222 @ sK11_SY235 )
      = $true )
    | ( ( ~ ( ( nil != sK5_SY222 )
            | ( nil != sK4_SY206 ) ) )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1033]) ).

thf(1050,plain,
    ! [SV123: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SV123 )
                            | ~ ( ( sK11_SY235 != SV123 ) ) )
                      | ~ ( memberP @ sK5_SY222 @ SV123 ) )
                | ~ ( leq @ sK11_SY235 @ SV123 ) ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1034]) ).

thf(1051,plain,
    ! [SV42: $i] :
      ( ( ( ssItem @ ( sK12_SY237 @ SV42 ) )
        = $true )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1036]) ).

thf(1052,plain,
    ! [SV42: $i] :
      ( ( ( ( cons @ ( sK12_SY237 @ SV42 ) @ ( sK6_SY184 @ SV42 ) )
          = SV42 )
        = $true )
      | ( ( nil = SV42 )
        = $true )
      | ( ( ssList @ SV42 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1037]) ).

thf(1053,plain,
    ! [SV96: $i,SV49: $i,SV120: $i,SV117: $i] :
      ( ( ( SV117 != SV120 )
        = $false )
      | ( ( ( cons @ SV117 @ SV49 )
          = ( cons @ SV120 @ SV96 ) )
        = $false )
      | ( ( ssItem @ SV120 )
        = $false )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1038]) ).

thf(1054,plain,
    ! [SV120: $i,SV117: $i,SV49: $i,SV96: $i] :
      ( ( ( SV96 != SV49 )
        = $false )
      | ( ( ( cons @ SV117 @ SV49 )
          = ( cons @ SV120 @ SV96 ) )
        = $false )
      | ( ( ssItem @ SV120 )
        = $false )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1038]) ).

thf(1055,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ( ssList @ ( sK13_SY230 @ SV59 @ SV99 ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1041]) ).

thf(1056,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ~ ! [SY241: $i] :
                  ~ ~ ( ~ ( ssList @ SY241 )
                      | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ SY241 ) )
                       != SV59 ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1041]) ).

thf(1057,plain,
    ! [SV59: $i,SV99: $i,SV122: $i] :
      ( ( ( ~ ( ssList @ SV122 ) )
        = $true )
      | ( ( ~ ~ ! [SY242: $i] :
                  ~ ~ ( ~ ( ssList @ SY242 )
                      | ( ( app @ SV122 @ ( cons @ SV99 @ SY242 ) )
                       != SV59 ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1042]) ).

thf(1058,plain,
    ! [SV119: $i,SV81: $i,SV111: $i,SV25: $i] :
      ( ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $false )
      | ( ( ~ ( ( SV25 != SV81 )
              | ~ ( frontsegP @ SV111 @ SV119 ) ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1043]) ).

thf(1059,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( ~ ( ( SV25 != SV81 )
              | ~ ( frontsegP @ SV111 @ SV119 ) ) )
        = $false )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1044]) ).

thf(1060,plain,
    ( ( ( nil = sK5_SY222 )
      = $true )
    | ( ( ssItem @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1046]) ).

thf(1061,plain,
    ( ( ( nil = sK4_SY206 )
      = $true )
    | ( ( ssItem @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1047]) ).

thf(1062,plain,
    ( ( ( ( nil != sK5_SY222 )
        | ( nil != sK4_SY206 ) )
      = $false )
    | ( ( ( cons @ sK11_SY235 @ nil )
        = sK4_SY206 )
      = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1048]) ).

thf(1063,plain,
    ( ( ( ( nil != sK5_SY222 )
        | ( nil != sK4_SY206 ) )
      = $false )
    | ( ( memberP @ sK5_SY222 @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1049]) ).

thf(1064,plain,
    ! [SV123: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SV123 )
                          | ~ ( ( sK11_SY235 != SV123 ) ) )
                    | ~ ( memberP @ sK5_SY222 @ SV123 ) )
              | ~ ( leq @ sK11_SY235 @ SV123 ) ) )
        = $false )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1050]) ).

thf(1065,plain,
    ! [SV96: $i,SV49: $i,SV120: $i,SV117: $i] :
      ( ( ( SV117 = SV120 )
        = $true )
      | ( ( ( cons @ SV117 @ SV49 )
          = ( cons @ SV120 @ SV96 ) )
        = $false )
      | ( ( ssItem @ SV120 )
        = $false )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1053]) ).

thf(1066,plain,
    ! [SV120: $i,SV117: $i,SV49: $i,SV96: $i] :
      ( ( ( SV96 = SV49 )
        = $true )
      | ( ( ( cons @ SV117 @ SV49 )
          = ( cons @ SV120 @ SV96 ) )
        = $false )
      | ( ( ssItem @ SV120 )
        = $false )
      | ( ( ssItem @ SV117 )
        = $false )
      | ( ( ssList @ SV96 )
        = $false )
      | ( ( ssList @ SV49 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1054]) ).

thf(1067,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ssList @ ( sK13_SY230 @ SV59 @ SV99 ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1055]) ).

thf(1068,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ~ ! [SY241: $i] :
                ~ ~ ( ~ ( ssList @ SY241 )
                    | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ SY241 ) )
                     != SV59 ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1056]) ).

thf(1069,plain,
    ! [SV59: $i,SV99: $i,SV122: $i] :
      ( ( ( ssList @ SV122 )
        = $false )
      | ( ( ~ ~ ! [SY242: $i] :
                  ~ ~ ( ~ ( ssList @ SY242 )
                      | ( ( app @ SV122 @ ( cons @ SV99 @ SY242 ) )
                       != SV59 ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1057]) ).

thf(1070,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( ( SV25 != SV81 )
          | ~ ( frontsegP @ SV111 @ SV119 ) )
        = $false )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1058]) ).

thf(1071,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( ( SV25 != SV81 )
          | ~ ( frontsegP @ SV111 @ SV119 ) )
        = $true )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1059]) ).

thf(1072,plain,
    ( ( ( nil != sK5_SY222 )
      = $false )
    | ( ( ( cons @ sK11_SY235 @ nil )
        = sK4_SY206 )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1062]) ).

thf(1073,plain,
    ( ( ( nil != sK4_SY206 )
      = $false )
    | ( ( ( cons @ sK11_SY235 @ nil )
        = sK4_SY206 )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1062]) ).

thf(1074,plain,
    ( ( ( nil != sK5_SY222 )
      = $false )
    | ( ( memberP @ sK5_SY222 @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1063]) ).

thf(1075,plain,
    ( ( ( nil != sK4_SY206 )
      = $false )
    | ( ( memberP @ sK5_SY222 @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1063]) ).

thf(1076,plain,
    ! [SV123: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SV123 )
                      | ~ ( ( sK11_SY235 != SV123 ) ) )
                | ~ ( memberP @ sK5_SY222 @ SV123 ) )
          | ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1064]) ).

thf(1077,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ! [SY241: $i] :
              ~ ~ ( ~ ( ssList @ SY241 )
                  | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ SY241 ) )
                   != SV59 ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1068]) ).

thf(1078,plain,
    ! [SV59: $i,SV99: $i,SV122: $i] :
      ( ( ( ~ ! [SY242: $i] :
                ~ ~ ( ~ ( ssList @ SY242 )
                    | ( ( app @ SV122 @ ( cons @ SV99 @ SY242 ) )
                     != SV59 ) ) )
        = $false )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1069]) ).

thf(1079,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( SV25 != SV81 )
        = $false )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1070]) ).

thf(1080,plain,
    ! [SV81: $i,SV25: $i,SV119: $i,SV111: $i] :
      ( ( ( ~ ( frontsegP @ SV111 @ SV119 ) )
        = $false )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1070]) ).

thf(1081,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( SV25 != SV81 )
        = $true )
      | ( ( ~ ( frontsegP @ SV111 @ SV119 ) )
        = $true )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1071]) ).

thf(1082,plain,
    ( ( ( nil = sK5_SY222 )
      = $true )
    | ( ( ( cons @ sK11_SY235 @ nil )
        = sK4_SY206 )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1072]) ).

thf(1083,plain,
    ( ( ( nil = sK4_SY206 )
      = $true )
    | ( ( ( cons @ sK11_SY235 @ nil )
        = sK4_SY206 )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1073]) ).

thf(1084,plain,
    ( ( ( nil = sK5_SY222 )
      = $true )
    | ( ( memberP @ sK5_SY222 @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1074]) ).

thf(1085,plain,
    ( ( ( nil = sK4_SY206 )
      = $true )
    | ( ( memberP @ sK5_SY222 @ sK11_SY235 )
      = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1075]) ).

thf(1086,plain,
    ! [SV123: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( ssItem @ SV123 )
                      | ~ ( ( sK11_SY235 != SV123 ) ) )
                | ~ ( memberP @ sK5_SY222 @ SV123 ) ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1076]) ).

thf(1087,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ~ ( ~ ( ssList @ ( sK14_SY241 @ SV99 @ SV59 ) )
                | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ ( sK14_SY241 @ SV99 @ SV59 ) ) )
                 != SV59 ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1077]) ).

thf(1088,plain,
    ! [SV59: $i,SV99: $i,SV122: $i] :
      ( ( ( ! [SY242: $i] :
              ~ ~ ( ~ ( ssList @ SY242 )
                  | ( ( app @ SV122 @ ( cons @ SV99 @ SY242 ) )
                   != SV59 ) ) )
        = $true )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1078]) ).

thf(1089,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( SV25 = SV81 )
        = $true )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1079]) ).

thf(1090,plain,
    ! [SV81: $i,SV25: $i,SV119: $i,SV111: $i] :
      ( ( ( frontsegP @ SV111 @ SV119 )
        = $true )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $false )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1080]) ).

thf(1091,plain,
    ! [SV119: $i,SV111: $i,SV81: $i,SV25: $i] :
      ( ( ( SV25 = SV81 )
        = $false )
      | ( ( ~ ( frontsegP @ SV111 @ SV119 ) )
        = $true )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1081]) ).

thf(1092,plain,
    ! [SV123: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ssItem @ SV123 )
                    | ~ ( ( sK11_SY235 != SV123 ) ) )
              | ~ ( memberP @ sK5_SY222 @ SV123 ) ) )
        = $false )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1086]) ).

thf(1093,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( ssList @ ( sK14_SY241 @ SV99 @ SV59 ) )
              | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ ( sK14_SY241 @ SV99 @ SV59 ) ) )
               != SV59 ) ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1087]) ).

thf(1094,plain,
    ! [SV59: $i,SV99: $i,SV122: $i,SV124: $i] :
      ( ( ( ~ ~ ( ~ ( ssList @ SV124 )
                | ( ( app @ SV122 @ ( cons @ SV99 @ SV124 ) )
                 != SV59 ) ) )
        = $true )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1088]) ).

thf(1095,plain,
    ! [SV81: $i,SV25: $i,SV119: $i,SV111: $i] :
      ( ( ( frontsegP @ SV111 @ SV119 )
        = $false )
      | ( ( SV25 = SV81 )
        = $false )
      | ( ( frontsegP @ ( cons @ SV25 @ SV111 ) @ ( cons @ SV81 @ SV119 ) )
        = $true )
      | ( ( ssList @ SV119 )
        = $false )
      | ( ( ssList @ SV111 )
        = $false )
      | ( ( ssItem @ SV81 )
        = $false )
      | ( ( ssItem @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1091]) ).

thf(1096,plain,
    ! [SV123: $i] :
      ( ( ( ~ ~ ( ~ ( ssItem @ SV123 )
                | ~ ( ( sK11_SY235 != SV123 ) ) )
          | ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1092]) ).

thf(1097,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ( ssList @ ( sK14_SY241 @ SV99 @ SV59 ) )
          | ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ ( sK14_SY241 @ SV99 @ SV59 ) ) )
           != SV59 ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1093]) ).

thf(1098,plain,
    ! [SV59: $i,SV99: $i,SV122: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( ssList @ SV124 )
              | ( ( app @ SV122 @ ( cons @ SV99 @ SV124 ) )
               != SV59 ) ) )
        = $false )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1094]) ).

thf(1099,plain,
    ! [SV123: $i] :
      ( ( ( ~ ~ ( ~ ( ssItem @ SV123 )
                | ~ ( ( sK11_SY235 != SV123 ) ) ) )
        = $true )
      | ( ( ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1096]) ).

thf(1100,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ~ ( ssList @ ( sK14_SY241 @ SV99 @ SV59 ) ) )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1097]) ).

thf(1101,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ ( sK14_SY241 @ SV99 @ SV59 ) ) )
         != SV59 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1097]) ).

thf(1102,plain,
    ! [SV59: $i,SV99: $i,SV122: $i,SV124: $i] :
      ( ( ( ~ ( ssList @ SV124 )
          | ( ( app @ SV122 @ ( cons @ SV99 @ SV124 ) )
           != SV59 ) )
        = $true )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1098]) ).

thf(1103,plain,
    ! [SV123: $i] :
      ( ( ( ~ ( ~ ( ssItem @ SV123 )
              | ~ ( ( sK11_SY235 != SV123 ) ) ) )
        = $false )
      | ( ( ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1099]) ).

thf(1104,plain,
    ! [SV59: $i,SV99: $i] :
      ( ( ( ssList @ ( sK14_SY241 @ SV99 @ SV59 ) )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1100]) ).

thf(1105,plain,
    ! [SV99: $i,SV59: $i] :
      ( ( ( ( app @ ( sK13_SY230 @ SV59 @ SV99 ) @ ( cons @ SV99 @ ( sK14_SY241 @ SV99 @ SV59 ) ) )
          = SV59 )
        = $true )
      | ( ( memberP @ SV59 @ SV99 )
        = $false )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1101]) ).

thf(1106,plain,
    ! [SV59: $i,SV99: $i,SV122: $i,SV124: $i] :
      ( ( ( ~ ( ssList @ SV124 ) )
        = $true )
      | ( ( ( app @ SV122 @ ( cons @ SV99 @ SV124 ) )
         != SV59 )
        = $true )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1102]) ).

thf(1107,plain,
    ! [SV123: $i] :
      ( ( ( ~ ( ssItem @ SV123 )
          | ~ ( ( sK11_SY235 != SV123 ) ) )
        = $true )
      | ( ( ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1103]) ).

thf(1108,plain,
    ! [SV59: $i,SV99: $i,SV122: $i,SV124: $i] :
      ( ( ( ssList @ SV124 )
        = $false )
      | ( ( ( app @ SV122 @ ( cons @ SV99 @ SV124 ) )
         != SV59 )
        = $true )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1106]) ).

thf(1109,plain,
    ! [SV123: $i] :
      ( ( ( ~ ( ssItem @ SV123 ) )
        = $true )
      | ( ( ~ ( ( sK11_SY235 != SV123 ) ) )
        = $true )
      | ( ( ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1107]) ).

thf(1110,plain,
    ! [SV59: $i,SV124: $i,SV99: $i,SV122: $i] :
      ( ( ( ( app @ SV122 @ ( cons @ SV99 @ SV124 ) )
          = SV59 )
        = $false )
      | ( ( ssList @ SV124 )
        = $false )
      | ( ( ssList @ SV122 )
        = $false )
      | ( ( memberP @ SV59 @ SV99 )
        = $true )
      | ( ( ssItem @ SV99 )
        = $false )
      | ( ( ssList @ SV59 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1108]) ).

thf(1111,plain,
    ! [SV123: $i] :
      ( ( ( ssItem @ SV123 )
        = $false )
      | ( ( ~ ( ( sK11_SY235 != SV123 ) ) )
        = $true )
      | ( ( ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1109]) ).

thf(1112,plain,
    ! [SV123: $i] :
      ( ( ( sK11_SY235 != SV123 )
        = $false )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1111]) ).

thf(1113,plain,
    ! [SV123: $i] :
      ( ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( ~ ( memberP @ sK5_SY222 @ SV123 ) )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1112]) ).

thf(1114,plain,
    ! [SV123: $i] :
      ( ( ( memberP @ sK5_SY222 @ SV123 )
        = $false )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( ~ ( leq @ sK11_SY235 @ SV123 ) )
        = $true )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1113]) ).

thf(1115,plain,
    ! [SV123: $i] :
      ( ( ( leq @ sK11_SY235 @ SV123 )
        = $false )
      | ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( memberP @ sK5_SY222 @ SV123 )
        = $false )
      | ( ( ~ ( ( nil != sK5_SY222 )
              | ( nil != sK4_SY206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1114]) ).

thf(1116,plain,
    ! [SV123: $i] :
      ( ( ( ( nil != sK5_SY222 )
          | ( nil != sK4_SY206 ) )
        = $false )
      | ( ( memberP @ sK5_SY222 @ SV123 )
        = $false )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( leq @ sK11_SY235 @ SV123 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1115]) ).

thf(1117,plain,
    ! [SV123: $i] :
      ( ( ( nil != sK5_SY222 )
        = $false )
      | ( ( memberP @ sK5_SY222 @ SV123 )
        = $false )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( leq @ sK11_SY235 @ SV123 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1116]) ).

thf(1118,plain,
    ! [SV123: $i] :
      ( ( ( nil != sK4_SY206 )
        = $false )
      | ( ( memberP @ sK5_SY222 @ SV123 )
        = $false )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( leq @ sK11_SY235 @ SV123 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1116]) ).

thf(1119,plain,
    ! [SV123: $i] :
      ( ( ( nil = sK5_SY222 )
        = $true )
      | ( ( memberP @ sK5_SY222 @ SV123 )
        = $false )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( leq @ sK11_SY235 @ SV123 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1117]) ).

thf(1120,plain,
    ! [SV123: $i] :
      ( ( ( nil = sK4_SY206 )
        = $true )
      | ( ( memberP @ sK5_SY222 @ SV123 )
        = $false )
      | ( ( ssItem @ SV123 )
        = $false )
      | ( ( sK11_SY235 = SV123 )
        = $true )
      | ( ( leq @ sK11_SY235 @ SV123 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1118]) ).

thf(1121,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[184,1120,1119,1110,1105,1104,1095,1090,1089,1085,1084,1083,1082,1067,1066,1065,1061,1060,1052,1051,1045,1040,1039,1035,1029,1028,1027,1024,1023,1022,1021,1020,1019,1018,1017,1016,1015,1014,1010,1009,1007,1006,998,970,954,953,948,945,944,941,938,937,936,934,925,924,919,918,917,916,913,900,899,894,868,852,809,807,806,804,800,788,777,776,773,772,764,763,752,727,700,680,668,660,656,653,643,638,635,634,568,563,550,521,515,514,505,504,502,499,493,492,491,474,472,470,466,462,459,458,322,253,235,233,231,229,227,225,223]) ).

thf(1122,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1121]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SWC207+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.06/0.20  % Computer : n015.cluster.edu
% 0.06/0.20  % Model    : x86_64 x86_64
% 0.06/0.20  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.06/0.20  % Memory   : 8046.5625MB
% 0.06/0.20  % OS       : Linux 6.8.0-71-generic
% 0.06/0.20  % CPULimit : 300
% 0.06/0.20  % WCLimit  : 300
% 0.06/0.20  % DateTime : Tue Oct  6 16:07:13 UTC 2026
% 0.06/0.20  % CPUTime  : 
% 0.06/0.20  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 6.61/1.60  .
% 6.61/1.60  
% 6.61/1.60   No.of.Axioms: 75
% 6.61/1.60  
% 6.61/1.60   Length.of.Defs: 0
% 6.61/1.60  
% 6.61/1.60   Contains.Choice.Funs: false
% 6.61/1.60  ..................................
% 6.61/1.60  
% 6.61/1.60  ********************************
% 6.61/1.60  *   All subproblems solved!    *
% 6.61/1.60  ********************************
% 6.61/1.60  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:76,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1121,loop_count:0,foatp_calls:1,translation:fof_full)
% 6.61/1.60  
% 6.61/1.60  %**** Beginning of derivation protocol ****
% 6.61/1.60  % SZS output start CNFRefutation
% See solution above
% 6.61/1.61  
% 6.61/1.61  %**** End of derivation protocol ****
% 6.61/1.61  %**** no. of clauses in derivation: 1102 ****
% 6.61/1.61  %**** clause counter: 1121 ****
% 6.61/1.61  
% 6.61/1.61  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:76,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:1121,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------