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Zipperpin---2.1.9999.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : ITP099^1 : TPTP v9.2.0. Released v7.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.QqMgrtOdLg true

% Computer : n015.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Oct  2 04:38:49 PM UTC 2025

% Result   : Theorem 20.38s 3.52s
% Output   : Refutation 20.38s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   19
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   57 (  20 unt;   0 typ;   0 def)
%            Number of atoms       :  154 (  57 equ;   2 cnn)
%            Maximal formula atoms :    5 (   2 avg)
%            Number of connectives :  621 (  52   ~;  23   |;  14   &; 494   @)
%                                         (   0 <=>;  22  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   5 avg)
%            Number of types       :    4 (   3 usr)
%            Number of type conns  :   14 (  14   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   15 (  10 usr;   6 con; 0-3 aty)
%                                         (  16  !!;   0  ??;   0 @@+;   0 @@-)
%            Number of variables   :   79 (  28   ^;  51   !;   0   ?;  79   :)

% Comments : 
%------------------------------------------------------------------------------
thf(nat_type,type,
    nat: $tType ).

thf(list_a_type,type,
    list_a: $tType ).

thf(listIn1312259492pend_a_type,type,
    listIn1312259492pend_a: list_a > ( nat > a ) > nat > a ).

thf(ord_less_eq_nat_type,type,
    ord_less_eq_nat: nat > nat > $o ).

thf(minus_minus_nat_type,type,
    minus_minus_nat: nat > nat > nat ).

thf(xs_type,type,
    xs: list_a ).

thf(listIn1417627087drop_a_type,type,
    listIn1417627087drop_a: nat > ( nat > a ) > nat > a ).

thf(drop_a_type,type,
    drop_a: nat > list_a > list_a ).

thf(f_type,type,
    f: nat > a ).

thf(ord_less_nat_type,type,
    ord_less_nat: nat > nat > $o ).

thf(a_type,type,
    a: $tType ).

thf(size_size_list_a_type,type,
    size_size_list_a: list_a > nat ).

thf(n_type,type,
    n: nat ).

thf(fact_35_i__append__i__drop__eq2,axiom,
    ! [Xs: list_a,N: nat,F: nat > a] :
      ( ( ord_less_eq_nat @ ( size_size_list_a @ Xs ) @ N )
     => ( ( listIn1417627087drop_a @ N @ ( listIn1312259492pend_a @ Xs @ F ) )
        = ( listIn1417627087drop_a @ ( minus_minus_nat @ N @ ( size_size_list_a @ Xs ) ) @ F ) ) ) ).

thf(zip_derived_cl35,plain,
    ( !!
    @ ^ [Y0: list_a] :
        ( !!
        @ ^ [Y1: nat] :
            ( !!
            @ ^ [Y2: nat > a] :
                ( ( ord_less_eq_nat @ ( size_size_list_a @ Y0 ) @ Y1 )
               => ( ( listIn1417627087drop_a @ Y1 @ ( listIn1312259492pend_a @ Y0 @ Y2 ) )
                  = ( listIn1417627087drop_a @ ( minus_minus_nat @ Y1 @ ( size_size_list_a @ Y0 ) ) @ Y2 ) ) ) ) ) ),
    inference(cnf,[status(esa)],[fact_35_i__append__i__drop__eq2]) ).

thf(zip_derived_cl3391,plain,
    ! [X2: list_a] :
      ( !!
      @ ^ [Y0: nat] :
          ( !!
          @ ^ [Y1: nat > a] :
              ( ( ord_less_eq_nat @ ( size_size_list_a @ X2 ) @ Y0 )
             => ( ( listIn1417627087drop_a @ Y0 @ ( listIn1312259492pend_a @ X2 @ Y1 ) )
                = ( listIn1417627087drop_a @ ( minus_minus_nat @ Y0 @ ( size_size_list_a @ X2 ) ) @ Y1 ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl35]) ).

thf(zip_derived_cl3392,plain,
    ! [X2: list_a,X4: nat] :
      ( !!
      @ ^ [Y0: nat > a] :
          ( ( ord_less_eq_nat @ ( size_size_list_a @ X2 ) @ X4 )
         => ( ( listIn1417627087drop_a @ X4 @ ( listIn1312259492pend_a @ X2 @ Y0 ) )
            = ( listIn1417627087drop_a @ ( minus_minus_nat @ X4 @ ( size_size_list_a @ X2 ) ) @ Y0 ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl3391]) ).

thf(zip_derived_cl3393,plain,
    ! [X2: list_a,X4: nat,X6: nat > a] :
      ( ( ord_less_eq_nat @ ( size_size_list_a @ X2 ) @ X4 )
     => ( ( listIn1417627087drop_a @ X4 @ ( listIn1312259492pend_a @ X2 @ X6 ) )
        = ( listIn1417627087drop_a @ ( minus_minus_nat @ X4 @ ( size_size_list_a @ X2 ) ) @ X6 ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl3392]) ).

thf(zip_derived_cl3394,plain,
    ! [X2: list_a,X4: nat,X6: nat > a] :
      ( ~ ( ord_less_eq_nat @ ( size_size_list_a @ X2 ) @ X4 )
      | ( ( listIn1417627087drop_a @ X4 @ ( listIn1312259492pend_a @ X2 @ X6 ) )
        = ( listIn1417627087drop_a @ ( minus_minus_nat @ X4 @ ( size_size_list_a @ X2 ) ) @ X6 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl3393]) ).

thf(zip_derived_cl3395,plain,
    ! [X2: list_a,X4: nat,X6: nat > a] :
      ( ~ ( ord_less_eq_nat @ ( size_size_list_a @ X2 ) @ X4 )
      | ( ( listIn1417627087drop_a @ X4 @ ( listIn1312259492pend_a @ X2 @ X6 ) )
        = ( listIn1417627087drop_a @ ( minus_minus_nat @ X4 @ ( size_size_list_a @ X2 ) ) @ X6 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl3394]) ).

thf(conj_0,conjecture,
    ( ( ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
     => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
        = ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) ) )
    & ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
     => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
        = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ) ).

thf(zf_stmt_0,negated_conjecture,
    ~ ( ( ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) ) )
      & ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ),
    inference('cnf.neg',[status(esa)],[conj_0]) ).

thf(zip_derived_cl252,plain,
    ~ ( ( ( (~) @ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) ) )
      & ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ),
    inference(cnf,[status(esa)],[zf_stmt_0]) ).

thf(zip_derived_cl253,plain,
    ( ~ ( ( (~) @ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) ) )
    | ~ ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ),
    inference(lazy_cnf_and,[status(thm)],[zip_derived_cl252]) ).

thf(zip_derived_cl255,plain,
    ( ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
     != ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) )
    | ~ ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl253]) ).

thf(zip_derived_cl259,plain,
    ( ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
     != ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) )
    | ~ ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl255]) ).

thf(zip_derived_cl260,plain,
    ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
    | ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
     != ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl259]) ).

thf(fact_33_i__append__i__drop__eq1,axiom,
    ! [N: nat,Xs: list_a,F: nat > a] :
      ( ( ord_less_eq_nat @ N @ ( size_size_list_a @ Xs ) )
     => ( ( listIn1417627087drop_a @ N @ ( listIn1312259492pend_a @ Xs @ F ) )
        = ( listIn1312259492pend_a @ ( drop_a @ N @ Xs ) @ F ) ) ) ).

thf(zip_derived_cl33,plain,
    ( !!
    @ ^ [Y0: nat] :
        ( !!
        @ ^ [Y1: list_a] :
            ( !!
            @ ^ [Y2: nat > a] :
                ( ( ord_less_eq_nat @ Y0 @ ( size_size_list_a @ Y1 ) )
               => ( ( listIn1417627087drop_a @ Y0 @ ( listIn1312259492pend_a @ Y1 @ Y2 ) )
                  = ( listIn1312259492pend_a @ ( drop_a @ Y0 @ Y1 ) @ Y2 ) ) ) ) ) ),
    inference(cnf,[status(esa)],[fact_33_i__append__i__drop__eq1]) ).

thf(zip_derived_cl3122,plain,
    ! [X2: nat] :
      ( !!
      @ ^ [Y0: list_a] :
          ( !!
          @ ^ [Y1: nat > a] :
              ( ( ord_less_eq_nat @ X2 @ ( size_size_list_a @ Y0 ) )
             => ( ( listIn1417627087drop_a @ X2 @ ( listIn1312259492pend_a @ Y0 @ Y1 ) )
                = ( listIn1312259492pend_a @ ( drop_a @ X2 @ Y0 ) @ Y1 ) ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl33]) ).

thf(zip_derived_cl3123,plain,
    ! [X2: nat,X4: list_a] :
      ( !!
      @ ^ [Y0: nat > a] :
          ( ( ord_less_eq_nat @ X2 @ ( size_size_list_a @ X4 ) )
         => ( ( listIn1417627087drop_a @ X2 @ ( listIn1312259492pend_a @ X4 @ Y0 ) )
            = ( listIn1312259492pend_a @ ( drop_a @ X2 @ X4 ) @ Y0 ) ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl3122]) ).

thf(zip_derived_cl3124,plain,
    ! [X2: nat,X4: list_a,X6: nat > a] :
      ( ( ord_less_eq_nat @ X2 @ ( size_size_list_a @ X4 ) )
     => ( ( listIn1417627087drop_a @ X2 @ ( listIn1312259492pend_a @ X4 @ X6 ) )
        = ( listIn1312259492pend_a @ ( drop_a @ X2 @ X4 ) @ X6 ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl3123]) ).

thf(zip_derived_cl3125,plain,
    ! [X2: nat,X4: list_a,X6: nat > a] :
      ( ~ ( ord_less_eq_nat @ X2 @ ( size_size_list_a @ X4 ) )
      | ( ( listIn1417627087drop_a @ X2 @ ( listIn1312259492pend_a @ X4 @ X6 ) )
        = ( listIn1312259492pend_a @ ( drop_a @ X2 @ X4 ) @ X6 ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl3124]) ).

thf(zip_derived_cl3126,plain,
    ! [X2: nat,X4: list_a,X6: nat > a] :
      ( ~ ( ord_less_eq_nat @ X2 @ ( size_size_list_a @ X4 ) )
      | ( ( listIn1417627087drop_a @ X2 @ ( listIn1312259492pend_a @ X4 @ X6 ) )
        = ( listIn1312259492pend_a @ ( drop_a @ X2 @ X4 ) @ X6 ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl3125]) ).

thf(zip_derived_cl254,plain,
    ( ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
    | ~ ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ),
    inference(lazy_cnf_imply,[status(thm)],[zip_derived_cl253]) ).

thf(zip_derived_cl256,plain,
    ( ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
    | ~ ( $true
       => ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
          = ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ) ),
    inference(local_rewriting,[status(thm)],[zip_derived_cl254]) ).

thf(zip_derived_cl257,plain,
    ( ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
    | ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
     != ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ),
    inference('simplify boolean subterms',[status(thm)],[zip_derived_cl256]) ).

thf(zip_derived_cl258,plain,
    ( ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
    | ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
     != ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) ) ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl257]) ).

thf(zip_derived_cl3127,plain,
    ( ( ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f )
     != ( listIn1312259492pend_a @ ( drop_a @ n @ xs ) @ f ) )
    | ~ ( ord_less_eq_nat @ n @ ( size_size_list_a @ xs ) )
    | ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) ) ),
    inference('sup-',[status(thm)],[zip_derived_cl3126,zip_derived_cl258]) ).

thf(zip_derived_cl3130,plain,
    ( ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
    | ~ ( ord_less_eq_nat @ n @ ( size_size_list_a @ xs ) ) ),
    inference(simplify,[status(thm)],[zip_derived_cl3127]) ).

thf(fact_70_nat__less__le,axiom,
    ( ord_less_nat
    = ( ^ [M3: nat,N3: nat] :
          ( ( M3 != N3 )
          & ( ord_less_eq_nat @ M3 @ N3 ) ) ) ) ).

thf(zip_derived_cl70,plain,
    ( ord_less_nat
    = ( ^ [Y0: nat,Y1: nat] :
          ( ( Y0 != Y1 )
          & ( ord_less_eq_nat @ Y0 @ Y1 ) ) ) ),
    inference(cnf,[status(esa)],[fact_70_nat__less__le]) ).

thf(zip_derived_cl365,plain,
    ! [X1: nat,X2: nat] :
      ( ( ord_less_nat @ X1 @ X2 )
      = ( ^ [Y0: nat,Y1: nat] :
            ( ( Y0 != Y1 )
            & ( ord_less_eq_nat @ Y0 @ Y1 ) )
        @ X1
        @ X2 ) ),
    inference(ho_complete_eq,[status(thm)],[zip_derived_cl70]) ).

thf(zip_derived_cl367,plain,
    ! [X1: nat,X2: nat] :
      ( ( ord_less_nat @ X1 @ X2 )
      = ( ( X1 != X2 )
        & ( ord_less_eq_nat @ X1 @ X2 ) ) ),
    inference(ho_norm,[status(thm)],[zip_derived_cl365]) ).

thf(zip_derived_cl414,plain,
    ! [X1: nat,X2: nat] :
      ( ( ord_less_eq_nat @ X1 @ X2 )
      | ( ( ord_less_nat @ X1 @ X2 )
        = ( ( X1 != X2 )
          & $false ) ) ),
    inference(bool_hoist,[status(thm)],[zip_derived_cl367]) ).

thf(zip_derived_cl415,plain,
    ! [X1: nat,X2: nat] :
      ( ( ord_less_eq_nat @ X1 @ X2 )
      | ~ ( ord_less_nat @ X1 @ X2 ) ),
    inference('simplify boolean subterms',[status(thm)],[zip_derived_cl414]) ).

thf(zip_derived_cl3132,plain,
    ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) ),
    inference(clc,[status(thm)],[zip_derived_cl3130,zip_derived_cl415]) ).

thf(zip_derived_cl3133,plain,
    ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
   != ( listIn1417627087drop_a @ ( minus_minus_nat @ n @ ( size_size_list_a @ xs ) ) @ f ) ),
    inference(demod,[status(thm)],[zip_derived_cl260,zip_derived_cl3132]) ).

thf(zip_derived_cl3396,plain,
    ( ( ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) )
     != ( listIn1417627087drop_a @ n @ ( listIn1312259492pend_a @ xs @ f ) ) )
    | ~ ( ord_less_eq_nat @ ( size_size_list_a @ xs ) @ n ) ),
    inference('sup-',[status(thm)],[zip_derived_cl3395,zip_derived_cl3133]) ).

thf(zip_derived_cl3417,plain,
    ~ ( ord_less_eq_nat @ ( size_size_list_a @ xs ) @ n ),
    inference(simplify,[status(thm)],[zip_derived_cl3396]) ).

thf(zip_derived_cl3417_001,plain,
    ~ ( ord_less_eq_nat @ ( size_size_list_a @ xs ) @ n ),
    inference(simplify,[status(thm)],[zip_derived_cl3396]) ).

thf(fact_60_nat__le__linear,axiom,
    ! [M: nat,N: nat] :
      ( ( ord_less_eq_nat @ M @ N )
      | ( ord_less_eq_nat @ N @ M ) ) ).

thf(zip_derived_cl60,plain,
    ( !!
    @ ^ [Y0: nat] :
        ( !!
        @ ^ [Y1: nat] :
            ( ( ord_less_eq_nat @ Y0 @ Y1 )
            | ( ord_less_eq_nat @ Y1 @ Y0 ) ) ) ),
    inference(cnf,[status(esa)],[fact_60_nat__le__linear]) ).

thf(zip_derived_cl517,plain,
    ! [X2: nat] :
      ( !!
      @ ^ [Y0: nat] :
          ( ( ord_less_eq_nat @ X2 @ Y0 )
          | ( ord_less_eq_nat @ Y0 @ X2 ) ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl60]) ).

thf(zip_derived_cl518,plain,
    ! [X2: nat,X4: nat] :
      ( ( ord_less_eq_nat @ X2 @ X4 )
      | ( ord_less_eq_nat @ X4 @ X2 ) ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl517]) ).

thf(zip_derived_cl519,plain,
    ! [X2: nat,X4: nat] :
      ( ( ord_less_eq_nat @ X2 @ X4 )
      | ( ord_less_eq_nat @ X4 @ X2 ) ),
    inference(lazy_cnf_or,[status(thm)],[zip_derived_cl518]) ).

thf(zip_derived_cl3424,plain,
    ord_less_eq_nat @ n @ ( size_size_list_a @ xs ),
    inference('sup+',[status(thm)],[zip_derived_cl3417,zip_derived_cl519]) ).

thf(fact_178_dual__order_Ostrict__iff__order,axiom,
    ( ord_less_nat
    = ( ^ [B2: nat,A2: nat] :
          ( ( A2 != B2 )
          & ( ord_less_eq_nat @ B2 @ A2 ) ) ) ) ).

thf(zip_derived_cl178,plain,
    ( ord_less_nat
    = ( ^ [Y0: nat,Y1: nat] :
          ( ( Y1 != Y0 )
          & ( ord_less_eq_nat @ Y0 @ Y1 ) ) ) ),
    inference(cnf,[status(esa)],[fact_178_dual__order_Ostrict__iff__order]) ).

thf(zip_derived_cl373,plain,
    ! [X1: nat,X2: nat] :
      ( ( ord_less_nat @ X1 @ X2 )
      = ( ^ [Y0: nat,Y1: nat] :
            ( ( Y1 != Y0 )
            & ( ord_less_eq_nat @ Y0 @ Y1 ) )
        @ X1
        @ X2 ) ),
    inference(ho_complete_eq,[status(thm)],[zip_derived_cl178]) ).

thf(zip_derived_cl375,plain,
    ! [X1: nat,X2: nat] :
      ( ( ord_less_nat @ X1 @ X2 )
      = ( ( X2 != X1 )
        & ( ord_less_eq_nat @ X1 @ X2 ) ) ),
    inference(ho_norm,[status(thm)],[zip_derived_cl373]) ).

thf(zip_derived_cl3478,plain,
    ( ( ord_less_nat @ n @ ( size_size_list_a @ xs ) )
    = ( ( ( size_size_list_a @ xs )
       != n )
      & $true ) ),
    inference('sup+',[status(thm)],[zip_derived_cl3424,zip_derived_cl375]) ).

thf(zip_derived_cl3132_002,plain,
    ~ ( ord_less_nat @ n @ ( size_size_list_a @ xs ) ),
    inference(clc,[status(thm)],[zip_derived_cl3130,zip_derived_cl415]) ).

thf(zip_derived_cl3519,plain,
    ~ ( ( ( size_size_list_a @ xs )
       != n )
      & $true ),
    inference(demod,[status(thm)],[zip_derived_cl3478,zip_derived_cl3132]) ).

thf(zip_derived_cl3520,plain,
    ~ ( ( ( size_size_list_a @ xs )
       != n ) ),
    inference('simplify boolean subterms',[status(thm)],[zip_derived_cl3519]) ).

thf(zip_derived_cl3521,plain,
    ( ( size_size_list_a @ xs )
    = n ),
    inference('simplify nested equalities',[status(thm)],[zip_derived_cl3520]) ).

thf(fact_56_le__refl,axiom,
    ! [N: nat] : ( ord_less_eq_nat @ N @ N ) ).

thf(zip_derived_cl56,plain,
    ( !!
    @ ^ [Y0: nat] : ( ord_less_eq_nat @ Y0 @ Y0 ) ),
    inference(cnf,[status(esa)],[fact_56_le__refl]) ).

thf(zip_derived_cl269,plain,
    ! [X2: nat] : ( ord_less_eq_nat @ X2 @ X2 ),
    inference(lazy_cnf_forall,[status(thm)],[zip_derived_cl56]) ).

thf(zip_derived_cl3552,plain,
    $false,
    inference(demod,[status(thm)],[zip_derived_cl3417,zip_derived_cl3521,zip_derived_cl269]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem  : ITP099^1 : TPTP v9.2.0. Released v7.5.0.
% 0.03/0.14  % Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.QqMgrtOdLg true
% 0.14/0.35  % Computer : n015.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 300
% 0.14/0.35  % DateTime : Wed Oct  1 15:34:38 EDT 2025
% 0.14/0.35  % CPUTime  : 
% 0.14/0.35  % Running portfolio for 300 s
% 0.14/0.35  % File         : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.14/0.35  % Number of cores: 8
% 0.14/0.35  % Python version: Python 3.6.8
% 0.14/0.35  % Running in HO mode
% 0.56/0.67  % Total configuration time : 828
% 0.56/0.67  % Estimated wc time : 1656
% 0.56/0.67  % Estimated cpu time (8 cpus) : 207.0
% 0.56/0.75  % /export/starexec/sandbox2/solver/bin/lams/40_c.s.sh running for 80s
% 0.56/0.77  % /export/starexec/sandbox2/solver/bin/lams/35_full_unif4.sh running for 80s
% 0.56/0.78  % /export/starexec/sandbox2/solver/bin/lams/40_noforms.sh running for 90s
% 0.56/0.78  % /export/starexec/sandbox2/solver/bin/lams/40_c_ic.sh running for 80s
% 0.56/0.78  % /export/starexec/sandbox2/solver/bin/lams/40_b.comb.sh running for 70s
% 0.56/0.79  % /export/starexec/sandbox2/solver/bin/lams/15_e_short1.sh running for 30s
% 0.56/0.80  % /export/starexec/sandbox2/solver/bin/lams/30_sp5.sh running for 60s
% 0.56/0.80  % /export/starexec/sandbox2/solver/bin/lams/20_acsne_simpl.sh running for 40s
% 0.58/1.02  % /export/starexec/sandbox2/solver/bin/lams/30_b.l.sh running for 90s
% 20.38/3.52  % Solved by lams/35_full_unif4.sh.
% 20.38/3.52  % done 329 iterations in 2.706s
% 20.38/3.52  % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 20.38/3.52  % SZS output start Refutation
% See solution above
% 20.38/3.52  
% 20.38/3.52  
% 20.38/3.53  % Terminating...
% 21.11/3.70  % Runner terminated.
% 21.15/3.73  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------