TSTP Solution File: SWC046-1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SWC046-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n010.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 : Tue Sep 20 11:54:53 EDT 2022

% Result   : Unsatisfiable 0.20s 0.50s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   19
%            Number of leaves      :   90
% Syntax   : Number of formulae    :  210 (  58 unt;  12 typ;   0 def)
%            Number of atoms       : 1467 ( 436 equ)
%            Maximal formula atoms :   24 (   7 avg)
%            Number of connectives : 2177 (1011   ~;1035   |;   0   &)
%                                         ( 131 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of FOOLs       :  103 ( 103 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   10 (   8   >;   2   *;   0   +;   0  <<)
%            Number of predicates  :   10 (   7 usr;   2 prp; 0-3 aty)
%            Number of functors    :    9 (   9 usr;   4 con; 0-2 aty)
%            Number of variables   :  373 ( 332   !;   0   ?; 373   :)

% Comments : 
%------------------------------------------------------------------------------
tff(memberP_type,type,
    memberP: ( $i * $i ) > $o ).

tff(skaf83_type,type,
    skaf83: $i > $i ).

tff(sk3_type,type,
    sk3: $i ).

tff(cons_type,type,
    cons: ( $i * $i ) > $i ).

tff(tl_type,type,
    tl: $i > $i ).

tff(hd_type,type,
    hd: $i > $i ).

tff(ssList_type,type,
    ssList: $i > $o ).

tff(skaf82_type,type,
    skaf82: $i > $i ).

tff(sk4_type,type,
    sk4: $i ).

tff(sk1_type,type,
    sk1: $i ).

tff(nil_type,type,
    nil: $i ).

tff(ssItem_type,type,
    ssItem: $i > $o ).

tff(1,plain,
    ^ [U: $i] :
      refl(
        ( ssList(skaf82(U))
      <=> ssList(skaf82(U)) )),
    inference(bind,[status(th)],]) ).

tff(2,plain,
    ( ! [U: $i] : ssList(skaf82(U))
  <=> ! [U: $i] : ssList(skaf82(U)) ),
    inference(quant_intro,[status(thm)],[1]) ).

tff(3,plain,
    ( ! [U: $i] : ssList(skaf82(U))
  <=> ! [U: $i] : ssList(skaf82(U)) ),
    inference(rewrite,[status(thm)],]) ).

tff(4,axiom,
    ! [U: $i] : ssList(skaf82(U)),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause13) ).

tff(5,plain,
    ! [U: $i] : ssList(skaf82(U)),
    inference(modus_ponens,[status(thm)],[4,3]) ).

tff(6,plain,
    ! [U: $i] : ssList(skaf82(U)),
    inference(skolemize,[status(sab)],[5]) ).

tff(7,plain,
    ! [U: $i] : ssList(skaf82(U)),
    inference(modus_ponens,[status(thm)],[6,2]) ).

tff(8,plain,
    ( ~ ! [U: $i] : ssList(skaf82(U))
    | ssList(skaf82(sk3)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(9,plain,
    ssList(skaf82(sk3)),
    inference(unit_resolution,[status(thm)],[8,7]) ).

tff(10,plain,
    ( ( nil != sk1 )
  <=> ( sk4 != sk3 ) ),
    inference(rewrite,[status(thm)],]) ).

tff(11,plain,
    ( ( nil != sk1 )
  <=> ( nil != sk1 ) ),
    inference(rewrite,[status(thm)],]) ).

tff(12,axiom,
    nil != sk1,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_8) ).

tff(13,plain,
    nil != sk1,
    inference(modus_ponens,[status(thm)],[12,11]) ).

tff(14,plain,
    sk4 != sk3,
    inference(modus_ponens,[status(thm)],[13,10]) ).

tff(15,plain,
    ( ssList(sk1)
  <=> ssList(sk3) ),
    inference(rewrite,[status(thm)],]) ).

tff(16,plain,
    ( ssList(sk1)
  <=> ssList(sk1) ),
    inference(rewrite,[status(thm)],]) ).

tff(17,axiom,
    ssList(sk1),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_1) ).

tff(18,plain,
    ssList(sk1),
    inference(modus_ponens,[status(thm)],[17,16]) ).

tff(19,plain,
    ssList(sk3),
    inference(modus_ponens,[status(thm)],[18,15]) ).

tff(20,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ssList(tl(U))
          | ( sk4 = U ) )
      <=> ( ~ ssList(U)
          | ssList(tl(U))
          | ( sk4 = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(21,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ssList(tl(U))
        | ( sk4 = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ssList(tl(U))
        | ( sk4 = U ) ) ),
    inference(quant_intro,[status(thm)],[20]) ).

tff(22,plain,
    ^ [U: $i] :
      trans(
        monotonicity(
          rewrite(
            ( ( nil = U )
          <=> ( sk4 = U ) )),
          ( ( ~ ssList(U)
            | ( nil = U )
            | ssList(tl(U)) )
        <=> ( ~ ssList(U)
            | ( sk4 = U )
            | ssList(tl(U)) ) )),
        rewrite(
          ( ( ~ ssList(U)
            | ( sk4 = U )
            | ssList(tl(U)) )
        <=> ( ~ ssList(U)
            | ssList(tl(U))
            | ( sk4 = U ) ) )),
        ( ( ~ ssList(U)
          | ( nil = U )
          | ssList(tl(U)) )
      <=> ( ~ ssList(U)
          | ssList(tl(U))
          | ( sk4 = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(23,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ssList(tl(U))
        | ( sk4 = U ) ) ),
    inference(quant_intro,[status(thm)],[22]) ).

tff(24,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(25,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ssList(tl(U))
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssList(tl(U)) ) )),
    inference(bind,[status(th)],]) ).

tff(26,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ssList(tl(U))
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) ) ),
    inference(quant_intro,[status(thm)],[25]) ).

tff(27,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssList(tl(U))
      | ( nil = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause75) ).

tff(28,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssList(tl(U)) ),
    inference(modus_ponens,[status(thm)],[27,26]) ).

tff(29,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssList(tl(U)) ),
    inference(modus_ponens,[status(thm)],[28,24]) ).

tff(30,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssList(tl(U))
      | ( sk4 = U ) ),
    inference(modus_ponens,[status(thm)],[29,23]) ).

tff(31,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssList(tl(U))
      | ( sk4 = U ) ),
    inference(skolemize,[status(sab)],[30]) ).

tff(32,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssList(tl(U))
      | ( sk4 = U ) ),
    inference(modus_ponens,[status(thm)],[31,21]) ).

tff(33,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ssList(tl(U))
            | ( sk4 = U ) )
      | ~ ssList(sk3)
      | ssList(tl(sk3))
      | ( sk4 = sk3 ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ssList(tl(U))
            | ( sk4 = U ) )
      | ~ ssList(sk3)
      | ssList(tl(sk3))
      | ( sk4 = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(34,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ssList(tl(U))
          | ( sk4 = U ) )
    | ~ ssList(sk3)
    | ssList(tl(sk3))
    | ( sk4 = sk3 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(35,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ssList(tl(U))
          | ( sk4 = U ) )
    | ~ ssList(sk3)
    | ssList(tl(sk3))
    | ( sk4 = sk3 ) ),
    inference(modus_ponens,[status(thm)],[34,33]) ).

tff(36,plain,
    ssList(tl(sk3)),
    inference(unit_resolution,[status(thm)],[35,32,19,14]) ).

tff(37,plain,
    ^ [U: $i] :
      refl(
        ( ssItem(skaf83(U))
      <=> ssItem(skaf83(U)) )),
    inference(bind,[status(th)],]) ).

tff(38,plain,
    ( ! [U: $i] : ssItem(skaf83(U))
  <=> ! [U: $i] : ssItem(skaf83(U)) ),
    inference(quant_intro,[status(thm)],[37]) ).

tff(39,plain,
    ( ! [U: $i] : ssItem(skaf83(U))
  <=> ! [U: $i] : ssItem(skaf83(U)) ),
    inference(rewrite,[status(thm)],]) ).

tff(40,axiom,
    ! [U: $i] : ssItem(skaf83(U)),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause12) ).

tff(41,plain,
    ! [U: $i] : ssItem(skaf83(U)),
    inference(modus_ponens,[status(thm)],[40,39]) ).

tff(42,plain,
    ! [U: $i] : ssItem(skaf83(U)),
    inference(skolemize,[status(sab)],[41]) ).

tff(43,plain,
    ! [U: $i] : ssItem(skaf83(U)),
    inference(modus_ponens,[status(thm)],[42,38]) ).

tff(44,plain,
    ( ~ ! [U: $i] : ssItem(skaf83(U))
    | ssItem(skaf83(sk3)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(45,plain,
    ssItem(skaf83(sk3)),
    inference(unit_resolution,[status(thm)],[44,43]) ).

tff(46,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) )
      <=> ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(47,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( sk4 = U )
        | ( cons(skaf83(U),skaf82(U)) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( sk4 = U )
        | ( cons(skaf83(U),skaf82(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[46]) ).

tff(48,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ( nil = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) )
      <=> ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(49,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(skaf83(U),skaf82(U)) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( sk4 = U )
        | ( cons(skaf83(U),skaf82(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[48]) ).

tff(50,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(skaf83(U),skaf82(U)) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(skaf83(U),skaf82(U)) = U ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(51,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ( cons(skaf83(U),skaf82(U)) = U )
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(52,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( cons(skaf83(U),skaf82(U)) = U )
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(skaf83(U),skaf82(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[51]) ).

tff(53,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( cons(skaf83(U),skaf82(U)) = U )
      | ( nil = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause109) ).

tff(54,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[53,52]) ).

tff(55,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[54,50]) ).

tff(56,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( sk4 = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[55,49]) ).

tff(57,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( sk4 = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(skolemize,[status(sab)],[56]) ).

tff(58,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( sk4 = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[57,47]) ).

tff(59,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( sk4 = U )
            | ( cons(skaf83(U),skaf82(U)) = U ) )
      | ~ ssList(sk3)
      | ( sk4 = sk3 )
      | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( sk4 = U )
            | ( cons(skaf83(U),skaf82(U)) = U ) )
      | ~ ssList(sk3)
      | ( sk4 = sk3 )
      | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(60,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) )
    | ~ ssList(sk3)
    | ( sk4 = sk3 )
    | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(61,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) )
    | ~ ssList(sk3)
    | ( sk4 = sk3 )
    | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[60,59]) ).

tff(62,plain,
    cons(skaf83(sk3),skaf82(sk3)) = sk3,
    inference(unit_resolution,[status(thm)],[61,58,19,14]) ).

tff(63,plain,
    sk3 = cons(skaf83(sk3),skaf82(sk3)),
    inference(symmetry,[status(thm)],[62]) ).

tff(64,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(hd(U),tl(U)) = U ) )
      <=> ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(hd(U),tl(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(65,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( sk4 = U )
        | ( cons(hd(U),tl(U)) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( sk4 = U )
        | ( cons(hd(U),tl(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[64]) ).

tff(66,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ( nil = U )
          | ( cons(hd(U),tl(U)) = U ) )
      <=> ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(hd(U),tl(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(67,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(hd(U),tl(U)) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( sk4 = U )
        | ( cons(hd(U),tl(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[66]) ).

tff(68,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(hd(U),tl(U)) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(hd(U),tl(U)) = U ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(69,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ( cons(hd(U),tl(U)) = U )
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ( cons(hd(U),tl(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(70,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( cons(hd(U),tl(U)) = U )
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(hd(U),tl(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[69]) ).

tff(71,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( cons(hd(U),tl(U)) = U )
      | ( nil = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause104) ).

tff(72,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[71,70]) ).

tff(73,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[72,68]) ).

tff(74,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( sk4 = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[73,67]) ).

tff(75,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( sk4 = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(skolemize,[status(sab)],[74]) ).

tff(76,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( sk4 = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[75,65]) ).

tff(77,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( sk4 = U )
            | ( cons(hd(U),tl(U)) = U ) )
      | ~ ssList(sk3)
      | ( sk4 = sk3 )
      | ( cons(hd(sk3),tl(sk3)) = sk3 ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( sk4 = U )
            | ( cons(hd(U),tl(U)) = U ) )
      | ~ ssList(sk3)
      | ( sk4 = sk3 )
      | ( cons(hd(sk3),tl(sk3)) = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(78,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(hd(U),tl(U)) = U ) )
    | ~ ssList(sk3)
    | ( sk4 = sk3 )
    | ( cons(hd(sk3),tl(sk3)) = sk3 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(79,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( sk4 = U )
          | ( cons(hd(U),tl(U)) = U ) )
    | ~ ssList(sk3)
    | ( sk4 = sk3 )
    | ( cons(hd(sk3),tl(sk3)) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[78,77]) ).

tff(80,plain,
    cons(hd(sk3),tl(sk3)) = sk3,
    inference(unit_resolution,[status(thm)],[79,76,19,14]) ).

tff(81,plain,
    cons(hd(sk3),tl(sk3)) = cons(skaf83(sk3),skaf82(sk3)),
    inference(transitivity,[status(thm)],[80,63]) ).

tff(82,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ssItem(hd(U))
          | ( sk4 = U ) )
      <=> ( ~ ssList(U)
          | ssItem(hd(U))
          | ( sk4 = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(83,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ssItem(hd(U))
        | ( sk4 = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ssItem(hd(U))
        | ( sk4 = U ) ) ),
    inference(quant_intro,[status(thm)],[82]) ).

tff(84,plain,
    ^ [U: $i] :
      trans(
        monotonicity(
          rewrite(
            ( ( nil = U )
          <=> ( sk4 = U ) )),
          ( ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
        <=> ( ~ ssList(U)
            | ( sk4 = U )
            | ssItem(hd(U)) ) )),
        rewrite(
          ( ( ~ ssList(U)
            | ( sk4 = U )
            | ssItem(hd(U)) )
        <=> ( ~ ssList(U)
            | ssItem(hd(U))
            | ( sk4 = U ) ) )),
        ( ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) )
      <=> ( ~ ssList(U)
          | ssItem(hd(U))
          | ( sk4 = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(85,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ssItem(hd(U))
        | ( sk4 = U ) ) ),
    inference(quant_intro,[status(thm)],[84]) ).

tff(86,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(87,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ssItem(hd(U))
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) ) )),
    inference(bind,[status(th)],]) ).

tff(88,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ssItem(hd(U))
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) ) ),
    inference(quant_intro,[status(thm)],[87]) ).

tff(89,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssItem(hd(U))
      | ( nil = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause76) ).

tff(90,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssItem(hd(U)) ),
    inference(modus_ponens,[status(thm)],[89,88]) ).

tff(91,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssItem(hd(U)) ),
    inference(modus_ponens,[status(thm)],[90,86]) ).

tff(92,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssItem(hd(U))
      | ( sk4 = U ) ),
    inference(modus_ponens,[status(thm)],[91,85]) ).

tff(93,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssItem(hd(U))
      | ( sk4 = U ) ),
    inference(skolemize,[status(sab)],[92]) ).

tff(94,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssItem(hd(U))
      | ( sk4 = U ) ),
    inference(modus_ponens,[status(thm)],[93,83]) ).

tff(95,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ssItem(hd(U))
            | ( sk4 = U ) )
      | ~ ssList(sk3)
      | ssItem(hd(sk3))
      | ( sk4 = sk3 ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ssItem(hd(U))
            | ( sk4 = U ) )
      | ~ ssList(sk3)
      | ssItem(hd(sk3))
      | ( sk4 = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(96,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ssItem(hd(U))
          | ( sk4 = U ) )
    | ~ ssList(sk3)
    | ssItem(hd(sk3))
    | ( sk4 = sk3 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(97,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ssItem(hd(U))
          | ( sk4 = U ) )
    | ~ ssList(sk3)
    | ssItem(hd(sk3))
    | ( sk4 = sk3 ) ),
    inference(modus_ponens,[status(thm)],[96,95]) ).

tff(98,plain,
    ssItem(hd(sk3)),
    inference(unit_resolution,[status(thm)],[97,94,19,14]) ).

tff(99,plain,
    ^ [W: $i,V: $i,U: $i,X: $i] :
      refl(
        ( ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( U = W )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) )
      <=> ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( U = W )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) ) )),
    inference(bind,[status(th)],]) ).

tff(100,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( U = W )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( U = W )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) ) ),
    inference(quant_intro,[status(thm)],[99]) ).

tff(101,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( U = W )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( U = W )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(102,plain,
    ^ [W: $i,V: $i,U: $i,X: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              trans(
                monotonicity(
                  trans(
                    monotonicity(
                      rewrite(
                        ( ( ( cons(U,V) != cons(W,X) )
                          | ~ ssItem(W) )
                      <=> ( ~ ssItem(W)
                          | ( cons(U,V) != cons(W,X) ) ) )),
                      ( ( ( cons(U,V) != cons(W,X) )
                        | ~ ssItem(W)
                        | ~ ssItem(U) )
                    <=> ( ~ ssItem(W)
                        | ( cons(U,V) != cons(W,X) )
                        | ~ ssItem(U) ) )),
                    rewrite(
                      ( ( ~ ssItem(W)
                        | ( cons(U,V) != cons(W,X) )
                        | ~ ssItem(U) )
                    <=> ( ~ ssItem(U)
                        | ~ ssItem(W)
                        | ( cons(U,V) != cons(W,X) ) ) )),
                    ( ( ( cons(U,V) != cons(W,X) )
                      | ~ ssItem(W)
                      | ~ ssItem(U) )
                  <=> ( ~ ssItem(U)
                      | ~ ssItem(W)
                      | ( cons(U,V) != cons(W,X) ) ) )),
                  ( ( ( cons(U,V) != cons(W,X) )
                    | ~ ssItem(W)
                    | ~ ssItem(U)
                    | ~ ssList(X) )
                <=> ( ~ ssItem(U)
                    | ~ ssItem(W)
                    | ( cons(U,V) != cons(W,X) )
                    | ~ ssList(X) ) )),
                rewrite(
                  ( ( ~ ssItem(U)
                    | ~ ssItem(W)
                    | ( cons(U,V) != cons(W,X) )
                    | ~ ssList(X) )
                <=> ( ~ ssList(X)
                    | ~ ssItem(U)
                    | ~ ssItem(W)
                    | ( cons(U,V) != cons(W,X) ) ) )),
                ( ( ( cons(U,V) != cons(W,X) )
                  | ~ ssItem(W)
                  | ~ ssItem(U)
                  | ~ ssList(X) )
              <=> ( ~ ssList(X)
                  | ~ ssItem(U)
                  | ~ ssItem(W)
                  | ( cons(U,V) != cons(W,X) ) ) )),
              ( ( ( cons(U,V) != cons(W,X) )
                | ~ ssItem(W)
                | ~ ssItem(U)
                | ~ ssList(X)
                | ~ ssList(V) )
            <=> ( ~ ssList(X)
                | ~ ssItem(U)
                | ~ ssItem(W)
                | ( cons(U,V) != cons(W,X) )
                | ~ ssList(V) ) )),
            rewrite(
              ( ( ~ ssList(X)
                | ~ ssItem(U)
                | ~ ssItem(W)
                | ( cons(U,V) != cons(W,X) )
                | ~ ssList(V) )
            <=> ( ~ ssList(X)
                | ~ ssItem(U)
                | ~ ssList(V)
                | ~ ssItem(W)
                | ( cons(U,V) != cons(W,X) ) ) )),
            ( ( ( cons(U,V) != cons(W,X) )
              | ~ ssItem(W)
              | ~ ssItem(U)
              | ~ ssList(X)
              | ~ ssList(V) )
          <=> ( ~ ssList(X)
              | ~ ssItem(U)
              | ~ ssList(V)
              | ~ ssItem(W)
              | ( cons(U,V) != cons(W,X) ) ) )),
          ( ( ( cons(U,V) != cons(W,X) )
            | ~ ssItem(W)
            | ~ ssItem(U)
            | ~ ssList(X)
            | ~ ssList(V)
            | ( U = W ) )
        <=> ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) )
            | ( U = W ) ) )),
        rewrite(
          ( ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) )
            | ( U = W ) )
        <=> ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( U = W )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) ) )),
        ( ( ( cons(U,V) != cons(W,X) )
          | ~ ssItem(W)
          | ~ ssItem(U)
          | ~ ssList(X)
          | ~ ssList(V)
          | ( U = W ) )
      <=> ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( U = W )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) ) )),
    inference(bind,[status(th)],]) ).

tff(103,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ( cons(U,V) != cons(W,X) )
        | ~ ssItem(W)
        | ~ ssItem(U)
        | ~ ssList(X)
        | ~ ssList(V)
        | ( U = W ) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( U = W )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) ) ),
    inference(quant_intro,[status(thm)],[102]) ).

tff(104,axiom,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ( cons(U,V) != cons(W,X) )
      | ~ ssItem(W)
      | ~ ssItem(U)
      | ~ ssList(X)
      | ~ ssList(V)
      | ( U = W ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause170) ).

tff(105,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( U = W )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(modus_ponens,[status(thm)],[104,103]) ).

tff(106,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( U = W )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(modus_ponens,[status(thm)],[105,101]) ).

tff(107,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( U = W )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(skolemize,[status(sab)],[106]) ).

tff(108,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( U = W )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(modus_ponens,[status(thm)],[107,100]) ).

tff(109,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( U = W )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) )
      | ( hd(sk3) = skaf83(sk3) ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( U = W )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) )
      | ( hd(sk3) = skaf83(sk3) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(110,plain,
    ( ( ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( hd(sk3) = skaf83(sk3) )
      | ~ ssItem(skaf83(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) )
  <=> ( ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) )
      | ( hd(sk3) = skaf83(sk3) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(111,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( U = W )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( hd(sk3) = skaf83(sk3) )
      | ~ ssItem(skaf83(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( U = W )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) )
      | ( hd(sk3) = skaf83(sk3) ) ) ),
    inference(monotonicity,[status(thm)],[110]) ).

tff(112,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( U = W )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( hd(sk3) = skaf83(sk3) )
      | ~ ssItem(skaf83(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( U = W )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) )
      | ( hd(sk3) = skaf83(sk3) ) ) ),
    inference(transitivity,[status(thm)],[111,109]) ).

tff(113,plain,
    ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
          ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( U = W )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) )
    | ~ ssList(skaf82(sk3))
    | ~ ssItem(hd(sk3))
    | ~ ssList(tl(sk3))
    | ( hd(sk3) = skaf83(sk3) )
    | ~ ssItem(skaf83(sk3))
    | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(114,plain,
    ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
          ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( U = W )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | ~ ssItem(hd(sk3))
    | ~ ssList(tl(sk3))
    | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) )
    | ( hd(sk3) = skaf83(sk3) ) ),
    inference(modus_ponens,[status(thm)],[113,112]) ).

tff(115,plain,
    ( ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | ~ ssList(tl(sk3))
    | ( hd(sk3) = skaf83(sk3) ) ),
    inference(unit_resolution,[status(thm)],[114,108,98,81]) ).

tff(116,plain,
    hd(sk3) = skaf83(sk3),
    inference(unit_resolution,[status(thm)],[115,45,36,9]) ).

tff(117,plain,
    skaf83(sk3) = hd(sk3),
    inference(symmetry,[status(thm)],[116]) ).

tff(118,plain,
    ^ [W: $i,V: $i,U: $i,X: $i] :
      refl(
        ( ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( X = V )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) )
      <=> ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( X = V )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) ) )),
    inference(bind,[status(th)],]) ).

tff(119,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( X = V )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( X = V )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) ) ),
    inference(quant_intro,[status(thm)],[118]) ).

tff(120,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( X = V )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( X = V )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(121,plain,
    ^ [W: $i,V: $i,U: $i,X: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              trans(
                monotonicity(
                  trans(
                    monotonicity(
                      rewrite(
                        ( ( ( cons(U,V) != cons(W,X) )
                          | ~ ssItem(W) )
                      <=> ( ~ ssItem(W)
                          | ( cons(U,V) != cons(W,X) ) ) )),
                      ( ( ( cons(U,V) != cons(W,X) )
                        | ~ ssItem(W)
                        | ~ ssItem(U) )
                    <=> ( ~ ssItem(W)
                        | ( cons(U,V) != cons(W,X) )
                        | ~ ssItem(U) ) )),
                    rewrite(
                      ( ( ~ ssItem(W)
                        | ( cons(U,V) != cons(W,X) )
                        | ~ ssItem(U) )
                    <=> ( ~ ssItem(U)
                        | ~ ssItem(W)
                        | ( cons(U,V) != cons(W,X) ) ) )),
                    ( ( ( cons(U,V) != cons(W,X) )
                      | ~ ssItem(W)
                      | ~ ssItem(U) )
                  <=> ( ~ ssItem(U)
                      | ~ ssItem(W)
                      | ( cons(U,V) != cons(W,X) ) ) )),
                  ( ( ( cons(U,V) != cons(W,X) )
                    | ~ ssItem(W)
                    | ~ ssItem(U)
                    | ~ ssList(X) )
                <=> ( ~ ssItem(U)
                    | ~ ssItem(W)
                    | ( cons(U,V) != cons(W,X) )
                    | ~ ssList(X) ) )),
                rewrite(
                  ( ( ~ ssItem(U)
                    | ~ ssItem(W)
                    | ( cons(U,V) != cons(W,X) )
                    | ~ ssList(X) )
                <=> ( ~ ssList(X)
                    | ~ ssItem(U)
                    | ~ ssItem(W)
                    | ( cons(U,V) != cons(W,X) ) ) )),
                ( ( ( cons(U,V) != cons(W,X) )
                  | ~ ssItem(W)
                  | ~ ssItem(U)
                  | ~ ssList(X) )
              <=> ( ~ ssList(X)
                  | ~ ssItem(U)
                  | ~ ssItem(W)
                  | ( cons(U,V) != cons(W,X) ) ) )),
              ( ( ( cons(U,V) != cons(W,X) )
                | ~ ssItem(W)
                | ~ ssItem(U)
                | ~ ssList(X)
                | ~ ssList(V) )
            <=> ( ~ ssList(X)
                | ~ ssItem(U)
                | ~ ssItem(W)
                | ( cons(U,V) != cons(W,X) )
                | ~ ssList(V) ) )),
            rewrite(
              ( ( ~ ssList(X)
                | ~ ssItem(U)
                | ~ ssItem(W)
                | ( cons(U,V) != cons(W,X) )
                | ~ ssList(V) )
            <=> ( ~ ssList(X)
                | ~ ssItem(U)
                | ~ ssList(V)
                | ~ ssItem(W)
                | ( cons(U,V) != cons(W,X) ) ) )),
            ( ( ( cons(U,V) != cons(W,X) )
              | ~ ssItem(W)
              | ~ ssItem(U)
              | ~ ssList(X)
              | ~ ssList(V) )
          <=> ( ~ ssList(X)
              | ~ ssItem(U)
              | ~ ssList(V)
              | ~ ssItem(W)
              | ( cons(U,V) != cons(W,X) ) ) )),
          ( ( ( cons(U,V) != cons(W,X) )
            | ~ ssItem(W)
            | ~ ssItem(U)
            | ~ ssList(X)
            | ~ ssList(V)
            | ( X = V ) )
        <=> ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) )
            | ( X = V ) ) )),
        rewrite(
          ( ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) )
            | ( X = V ) )
        <=> ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( X = V )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) ) )),
        ( ( ( cons(U,V) != cons(W,X) )
          | ~ ssItem(W)
          | ~ ssItem(U)
          | ~ ssList(X)
          | ~ ssList(V)
          | ( X = V ) )
      <=> ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( X = V )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) ) )),
    inference(bind,[status(th)],]) ).

tff(122,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ( cons(U,V) != cons(W,X) )
        | ~ ssItem(W)
        | ~ ssItem(U)
        | ~ ssList(X)
        | ~ ssList(V)
        | ( X = V ) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssItem(U)
        | ~ ssList(V)
        | ( X = V )
        | ~ ssItem(W)
        | ( cons(U,V) != cons(W,X) ) ) ),
    inference(quant_intro,[status(thm)],[121]) ).

tff(123,axiom,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ( cons(U,V) != cons(W,X) )
      | ~ ssItem(W)
      | ~ ssItem(U)
      | ~ ssList(X)
      | ~ ssList(V)
      | ( X = V ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause171) ).

tff(124,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( X = V )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(modus_ponens,[status(thm)],[123,122]) ).

tff(125,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( X = V )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(modus_ponens,[status(thm)],[124,120]) ).

tff(126,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( X = V )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(skolemize,[status(sab)],[125]) ).

tff(127,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssItem(U)
      | ~ ssList(V)
      | ( X = V )
      | ~ ssItem(W)
      | ( cons(U,V) != cons(W,X) ) ),
    inference(modus_ponens,[status(thm)],[126,119]) ).

tff(128,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( X = V )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( X = V )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(129,plain,
    ( ( ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ~ ssItem(skaf83(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) )
  <=> ( ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(130,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( X = V )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ~ ssItem(skaf83(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( X = V )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) ) ),
    inference(monotonicity,[status(thm)],[129]) ).

tff(131,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( X = V )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ~ ssItem(skaf83(sk3))
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssItem(U)
            | ~ ssList(V)
            | ( X = V )
            | ~ ssItem(W)
            | ( cons(U,V) != cons(W,X) ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ~ ssItem(hd(sk3))
      | ~ ssList(tl(sk3))
      | ( skaf82(sk3) = tl(sk3) )
      | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) ) ),
    inference(transitivity,[status(thm)],[130,128]) ).

tff(132,plain,
    ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
          ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( X = V )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) )
    | ~ ssList(skaf82(sk3))
    | ~ ssItem(hd(sk3))
    | ~ ssList(tl(sk3))
    | ( skaf82(sk3) = tl(sk3) )
    | ~ ssItem(skaf83(sk3))
    | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(133,plain,
    ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
          ( ~ ssList(X)
          | ~ ssItem(U)
          | ~ ssList(V)
          | ( X = V )
          | ~ ssItem(W)
          | ( cons(U,V) != cons(W,X) ) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | ~ ssItem(hd(sk3))
    | ~ ssList(tl(sk3))
    | ( skaf82(sk3) = tl(sk3) )
    | ( cons(hd(sk3),tl(sk3)) != cons(skaf83(sk3),skaf82(sk3)) ) ),
    inference(modus_ponens,[status(thm)],[132,131]) ).

tff(134,plain,
    ( ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | ~ ssList(tl(sk3))
    | ( skaf82(sk3) = tl(sk3) ) ),
    inference(unit_resolution,[status(thm)],[133,127,98,81]) ).

tff(135,plain,
    skaf82(sk3) = tl(sk3),
    inference(unit_resolution,[status(thm)],[134,45,36,9]) ).

tff(136,plain,
    tl(sk3) = skaf82(sk3),
    inference(symmetry,[status(thm)],[135]) ).

tff(137,plain,
    cons(skaf83(sk3),tl(sk3)) = cons(skaf83(sk3),skaf82(sk3)),
    inference(monotonicity,[status(thm)],[136]) ).

tff(138,plain,
    cons(skaf83(sk3),tl(sk3)) = sk3,
    inference(transitivity,[status(thm)],[137,62]) ).

tff(139,plain,
    ( memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3))
  <=> memberP(sk3,hd(sk3)) ),
    inference(monotonicity,[status(thm)],[138,117]) ).

tff(140,plain,
    ( memberP(sk3,hd(sk3))
  <=> memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ),
    inference(symmetry,[status(thm)],[139]) ).

tff(141,plain,
    ( ~ memberP(sk3,hd(sk3))
  <=> ~ memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ),
    inference(monotonicity,[status(thm)],[140]) ).

tff(142,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssItem(U)
          | ~ memberP(sk4,U) )
      <=> ( ~ ssItem(U)
          | ~ memberP(sk4,U) ) )),
    inference(bind,[status(th)],]) ).

tff(143,plain,
    ( ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(sk4,U) )
  <=> ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(sk4,U) ) ),
    inference(quant_intro,[status(thm)],[142]) ).

tff(144,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssItem(U)
          | ~ memberP(nil,U) )
      <=> ( ~ ssItem(U)
          | ~ memberP(sk4,U) ) )),
    inference(bind,[status(th)],]) ).

tff(145,plain,
    ( ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) )
  <=> ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(sk4,U) ) ),
    inference(quant_intro,[status(thm)],[144]) ).

tff(146,plain,
    ( ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) )
  <=> ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(147,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ memberP(nil,U)
          | ~ ssItem(U) )
      <=> ( ~ ssItem(U)
          | ~ memberP(nil,U) ) )),
    inference(bind,[status(th)],]) ).

tff(148,plain,
    ( ! [U: $i] :
        ( ~ memberP(nil,U)
        | ~ ssItem(U) )
  <=> ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) ) ),
    inference(quant_intro,[status(thm)],[147]) ).

tff(149,axiom,
    ! [U: $i] :
      ( ~ memberP(nil,U)
      | ~ ssItem(U) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause71) ).

tff(150,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(nil,U) ),
    inference(modus_ponens,[status(thm)],[149,148]) ).

tff(151,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(nil,U) ),
    inference(modus_ponens,[status(thm)],[150,146]) ).

tff(152,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(sk4,U) ),
    inference(modus_ponens,[status(thm)],[151,145]) ).

tff(153,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(sk4,U) ),
    inference(skolemize,[status(sab)],[152]) ).

tff(154,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(sk4,U) ),
    inference(modus_ponens,[status(thm)],[153,143]) ).

tff(155,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssItem(U)
            | ~ memberP(sk4,U) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk4,hd(sk3)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssItem(U)
            | ~ memberP(sk4,U) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk4,hd(sk3)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(156,plain,
    ( ~ ! [U: $i] :
          ( ~ ssItem(U)
          | ~ memberP(sk4,U) )
    | ~ ssItem(hd(sk3))
    | ~ memberP(sk4,hd(sk3)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(157,plain,
    ( ~ ! [U: $i] :
          ( ~ ssItem(U)
          | ~ memberP(sk4,U) )
    | ~ ssItem(hd(sk3))
    | ~ memberP(sk4,hd(sk3)) ),
    inference(modus_ponens,[status(thm)],[156,155]) ).

tff(158,plain,
    ~ memberP(sk4,hd(sk3)),
    inference(unit_resolution,[status(thm)],[157,154,98]) ).

tff(159,plain,
    ^ [A: $i] :
      refl(
        ( ( ~ ssItem(A)
          | memberP(sk4,A)
          | ~ memberP(sk3,A) )
      <=> ( ~ ssItem(A)
          | memberP(sk4,A)
          | ~ memberP(sk3,A) ) )),
    inference(bind,[status(th)],]) ).

tff(160,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | memberP(sk4,A)
        | ~ memberP(sk3,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | memberP(sk4,A)
        | ~ memberP(sk3,A) ) ),
    inference(quant_intro,[status(thm)],[159]) ).

tff(161,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | memberP(sk4,A)
        | ~ memberP(sk3,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | memberP(sk4,A)
        | ~ memberP(sk3,A) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(162,plain,
    ^ [A: $i] :
      rewrite(
        ( ( ~ ssItem(A)
          | ~ memberP(sk3,A)
          | memberP(sk4,A) )
      <=> ( ~ ssItem(A)
          | memberP(sk4,A)
          | ~ memberP(sk3,A) ) )),
    inference(bind,[status(th)],]) ).

tff(163,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ~ memberP(sk3,A)
        | memberP(sk4,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | memberP(sk4,A)
        | ~ memberP(sk3,A) ) ),
    inference(quant_intro,[status(thm)],[162]) ).

tff(164,axiom,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ memberP(sk3,A)
      | memberP(sk4,A) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_11) ).

tff(165,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | memberP(sk4,A)
      | ~ memberP(sk3,A) ),
    inference(modus_ponens,[status(thm)],[164,163]) ).

tff(166,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | memberP(sk4,A)
      | ~ memberP(sk3,A) ),
    inference(modus_ponens,[status(thm)],[165,161]) ).

tff(167,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | memberP(sk4,A)
      | ~ memberP(sk3,A) ),
    inference(skolemize,[status(sab)],[166]) ).

tff(168,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | memberP(sk4,A)
      | ~ memberP(sk3,A) ),
    inference(modus_ponens,[status(thm)],[167,160]) ).

tff(169,plain,
    ( ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | memberP(sk4,A)
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | memberP(sk4,hd(sk3))
      | ~ memberP(sk3,hd(sk3)) )
  <=> ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | memberP(sk4,A)
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | memberP(sk4,hd(sk3))
      | ~ memberP(sk3,hd(sk3)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(170,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | memberP(sk4,A)
          | ~ memberP(sk3,A) )
    | ~ ssItem(hd(sk3))
    | memberP(sk4,hd(sk3))
    | ~ memberP(sk3,hd(sk3)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(171,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | memberP(sk4,A)
          | ~ memberP(sk3,A) )
    | ~ ssItem(hd(sk3))
    | memberP(sk4,hd(sk3))
    | ~ memberP(sk3,hd(sk3)) ),
    inference(modus_ponens,[status(thm)],[170,169]) ).

tff(172,plain,
    ( memberP(sk4,hd(sk3))
    | ~ memberP(sk3,hd(sk3)) ),
    inference(unit_resolution,[status(thm)],[171,168,98]) ).

tff(173,plain,
    ~ memberP(sk3,hd(sk3)),
    inference(unit_resolution,[status(thm)],[172,158]) ).

tff(174,plain,
    ~ memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)),
    inference(modus_ponens,[status(thm)],[173,141]) ).

tff(175,plain,
    ^ [W: $i,V: $i,U: $i] :
      refl(
        ( ( ~ ssItem(U)
          | ~ ssItem(V)
          | ( U != V )
          | ~ ssList(W)
          | memberP(cons(V,W),U) )
      <=> ( ~ ssItem(U)
          | ~ ssItem(V)
          | ( U != V )
          | ~ ssList(W)
          | memberP(cons(V,W),U) ) )),
    inference(bind,[status(th)],]) ).

tff(176,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssItem(V)
        | ( U != V )
        | ~ ssList(W)
        | memberP(cons(V,W),U) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssItem(V)
        | ( U != V )
        | ~ ssList(W)
        | memberP(cons(V,W),U) ) ),
    inference(quant_intro,[status(thm)],[175]) ).

tff(177,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssItem(V)
        | ( U != V )
        | ~ ssList(W)
        | memberP(cons(V,W),U) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssItem(V)
        | ( U != V )
        | ~ ssList(W)
        | memberP(cons(V,W),U) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(178,plain,
    ^ [W: $i,V: $i,U: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              trans(
                monotonicity(
                  rewrite(
                    ( ( ( U != V )
                      | ~ ssList(W) )
                  <=> ( ( U != V )
                      | ~ ssList(W) ) )),
                  ( ( ( U != V )
                    | ~ ssList(W)
                    | ~ ssItem(V) )
                <=> ( ( U != V )
                    | ~ ssList(W)
                    | ~ ssItem(V) ) )),
                rewrite(
                  ( ( ( U != V )
                    | ~ ssList(W)
                    | ~ ssItem(V) )
                <=> ( ~ ssItem(V)
                    | ( U != V )
                    | ~ ssList(W) ) )),
                ( ( ( U != V )
                  | ~ ssList(W)
                  | ~ ssItem(V) )
              <=> ( ~ ssItem(V)
                  | ( U != V )
                  | ~ ssList(W) ) )),
              ( ( ( U != V )
                | ~ ssList(W)
                | ~ ssItem(V)
                | ~ ssItem(U) )
            <=> ( ~ ssItem(V)
                | ( U != V )
                | ~ ssList(W)
                | ~ ssItem(U) ) )),
            rewrite(
              ( ( ~ ssItem(V)
                | ( U != V )
                | ~ ssList(W)
                | ~ ssItem(U) )
            <=> ( ~ ssItem(U)
                | ~ ssItem(V)
                | ( U != V )
                | ~ ssList(W) ) )),
            ( ( ( U != V )
              | ~ ssList(W)
              | ~ ssItem(V)
              | ~ ssItem(U) )
          <=> ( ~ ssItem(U)
              | ~ ssItem(V)
              | ( U != V )
              | ~ ssList(W) ) )),
          ( ( ( U != V )
            | ~ ssList(W)
            | ~ ssItem(V)
            | ~ ssItem(U)
            | memberP(cons(V,W),U) )
        <=> ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) ) )),
        rewrite(
          ( ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) )
        <=> ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) ) )),
        ( ( ( U != V )
          | ~ ssList(W)
          | ~ ssItem(V)
          | ~ ssItem(U)
          | memberP(cons(V,W),U) )
      <=> ( ~ ssItem(U)
          | ~ ssItem(V)
          | ( U != V )
          | ~ ssList(W)
          | memberP(cons(V,W),U) ) )),
    inference(bind,[status(th)],]) ).

tff(179,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ( U != V )
        | ~ ssList(W)
        | ~ ssItem(V)
        | ~ ssItem(U)
        | memberP(cons(V,W),U) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssItem(V)
        | ( U != V )
        | ~ ssList(W)
        | memberP(cons(V,W),U) ) ),
    inference(quant_intro,[status(thm)],[178]) ).

tff(180,axiom,
    ! [W: $i,V: $i,U: $i] :
      ( ( U != V )
      | ~ ssList(W)
      | ~ ssItem(V)
      | ~ ssItem(U)
      | memberP(cons(V,W),U) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause138) ).

tff(181,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssItem(V)
      | ( U != V )
      | ~ ssList(W)
      | memberP(cons(V,W),U) ),
    inference(modus_ponens,[status(thm)],[180,179]) ).

tff(182,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssItem(V)
      | ( U != V )
      | ~ ssList(W)
      | memberP(cons(V,W),U) ),
    inference(modus_ponens,[status(thm)],[181,177]) ).

tff(183,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssItem(V)
      | ( U != V )
      | ~ ssList(W)
      | memberP(cons(V,W),U) ),
    inference(skolemize,[status(sab)],[182]) ).

tff(184,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssItem(V)
      | ( U != V )
      | ~ ssList(W)
      | memberP(cons(V,W),U) ),
    inference(modus_ponens,[status(thm)],[183,176]) ).

tff(185,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(186,plain,
    ( ( ~ ssItem(skaf83(sk3))
      | ~ ssItem(skaf83(sk3))
      | $false
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) )
  <=> ( ~ ssItem(skaf83(sk3))
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(187,plain,
    ( ~ $true
  <=> $false ),
    inference(rewrite,[status(thm)],]) ).

tff(188,plain,
    ( ( skaf83(sk3) = skaf83(sk3) )
  <=> $true ),
    inference(rewrite,[status(thm)],]) ).

tff(189,plain,
    ( ( skaf83(sk3) != skaf83(sk3) )
  <=> ~ $true ),
    inference(monotonicity,[status(thm)],[188]) ).

tff(190,plain,
    ( ( skaf83(sk3) != skaf83(sk3) )
  <=> $false ),
    inference(transitivity,[status(thm)],[189,187]) ).

tff(191,plain,
    ( ( ~ ssItem(skaf83(sk3))
      | ~ ssItem(skaf83(sk3))
      | ( skaf83(sk3) != skaf83(sk3) )
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) )
  <=> ( ~ ssItem(skaf83(sk3))
      | ~ ssItem(skaf83(sk3))
      | $false
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ) ),
    inference(monotonicity,[status(thm)],[190]) ).

tff(192,plain,
    ( ( ~ ssItem(skaf83(sk3))
      | ~ ssItem(skaf83(sk3))
      | ( skaf83(sk3) != skaf83(sk3) )
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) )
  <=> ( ~ ssItem(skaf83(sk3))
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ) ),
    inference(transitivity,[status(thm)],[191,186]) ).

tff(193,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssItem(skaf83(sk3))
      | ( skaf83(sk3) != skaf83(sk3) )
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ) ),
    inference(monotonicity,[status(thm)],[192]) ).

tff(194,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssItem(skaf83(sk3))
      | ( skaf83(sk3) != skaf83(sk3) )
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssItem(V)
            | ( U != V )
            | ~ ssList(W)
            | memberP(cons(V,W),U) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(tl(sk3))
      | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ) ),
    inference(transitivity,[status(thm)],[193,185]) ).

tff(195,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssItem(V)
          | ( U != V )
          | ~ ssList(W)
          | memberP(cons(V,W),U) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssItem(skaf83(sk3))
    | ( skaf83(sk3) != skaf83(sk3) )
    | ~ ssList(tl(sk3))
    | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(196,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssItem(V)
          | ( U != V )
          | ~ ssList(W)
          | memberP(cons(V,W),U) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssList(tl(sk3))
    | memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)) ),
    inference(modus_ponens,[status(thm)],[195,194]) ).

tff(197,plain,
    memberP(cons(skaf83(sk3),tl(sk3)),skaf83(sk3)),
    inference(unit_resolution,[status(thm)],[196,184,45,36]) ).

tff(198,plain,
    $false,
    inference(unit_resolution,[status(thm)],[197,174]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : SWC046-1 : TPTP v8.1.0. Released v2.4.0.
% 0.06/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.34  % Computer : n010.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Sat Sep  3 20:48:57 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.13/0.35  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.13/0.35  Usage: tptp [options] [-file:]file
% 0.13/0.35    -h, -?       prints this message.
% 0.13/0.35    -smt2        print SMT-LIB2 benchmark.
% 0.13/0.35    -m, -model   generate model.
% 0.13/0.35    -p, -proof   generate proof.
% 0.13/0.35    -c, -core    generate unsat core of named formulas.
% 0.13/0.35    -st, -statistics display statistics.
% 0.13/0.35    -t:timeout   set timeout (in second).
% 0.13/0.35    -smt2status  display status in smt2 format instead of SZS.
% 0.13/0.35    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.13/0.35    -<param>:<value> configuration parameter and value.
% 0.13/0.35    -o:<output-file> file to place output in.
% 0.20/0.50  % SZS status Unsatisfiable
% 0.20/0.50  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------