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Z3---4.15.1.UNS-Prf.s

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%------------------------------------------------------------------------------
% File     : Z3---4.15.1
% Problem  : SWC045-1 : TPTP v9.0.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : run_E %s %d THM

% Computer : n003.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 : Sat Jun 21 05:30:01 AM UTC 2025

% Result   : Unsatisfiable 1.60s 1.76s
% Output   : Proof 1.60s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :   99
% Syntax   : Number of formulae    :  252 (  70 unt;   0 typ;   0 def)
%            Number of atoms       : 1364 ( 330 equ)
%            Maximal formula atoms :   16 (   5 avg)
%            Number of connectives : 1983 ( 938   ~; 907   |;   0   &)
%                                         ( 138 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of FOOLs       :   67 (  67 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :   10 (   8 usr;   1 prp; 0-3 aty)
%            Number of functors    :   11 (  11 usr;   5 con; 0-2 aty)
%            Number of variables   :  393 ( 354   !;   0   ?; 393   :)

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

tff(app_type,type,
    app: ( $i * $i ) > $i ).

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

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

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

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

tff(sk5_type,type,
    sk5: $i > $i ).

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

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

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

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

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

tff(segmentP_type,type,
    segmentP: ( $i * $i ) > $o ).

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

tff(sk2_type,type,
    sk2: $i ).

tff(1,plain,
    ( ( sk1 = sk3 )
  <=> ( sk1 = sk3 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(2,axiom,
    sk1 = sk3,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_7) ).

tff(3,plain,
    sk1 = sk3,
    inference(modus_ponens,[status(thm)],[2,1]) ).

tff(4,plain,
    sk3 = sk1,
    inference(symmetry,[status(thm)],[3]) ).

tff(5,plain,
    ( ( nil = sk3 )
  <=> ( nil = sk1 ) ),
    inference(monotonicity,[status(thm)],[4]) ).

tff(6,plain,
    ( ( nil = sk1 )
  <=> ( nil = sk3 ) ),
    inference(symmetry,[status(thm)],[5]) ).

tff(7,plain,
    ( ( nil != sk1 )
  <=> ( nil != sk3 ) ),
    inference(monotonicity,[status(thm)],[6]) ).

tff(8,plain,
    ( ( nil != sk1 )
  <=> ( nil != sk1 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(9,axiom,
    nil != sk1,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_8) ).

tff(10,plain,
    nil != sk1,
    inference(modus_ponens,[status(thm)],[9,8]) ).

tff(11,plain,
    nil != sk3,
    inference(modus_ponens,[status(thm)],[10,7]) ).

tff(12,plain,
    ( ssList(sk3)
  <=> ssList(sk3) ),
    inference(rewrite,[status(thm)],[]) ).

tff(13,axiom,
    ssList(sk3),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_3) ).

tff(14,plain,
    ssList(sk3),
    inference(modus_ponens,[status(thm)],[13,12]) ).

tff(15,plain,
    ^ [U: $i] :
      refl(( ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) ) )),
    inference(bind,[status(th)],[]) ).

tff(16,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) ) ),
    inference(quant_intro,[status(thm)],[15]) ).

tff(17,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(18,plain,
    ^ [U: $i] :
      rewrite(( ( ~ ssList(U)
          | ssItem(hd(U))
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) ) )),
    inference(bind,[status(th)],[]) ).

tff(19,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ssItem(hd(U))
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssItem(hd(U)) ) ),
    inference(quant_intro,[status(thm)],[18]) ).

tff(20,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssItem(hd(U))
      | ( nil = U ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause76) ).

tff(21,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssItem(hd(U)) ),
    inference(modus_ponens,[status(thm)],[20,19]) ).

tff(22,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssItem(hd(U)) ),
    inference(modus_ponens,[status(thm)],[21,17]) ).

tff(23,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssItem(hd(U)) ),
    inference(skolemize,[status(sab)],[22]) ).

tff(24,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssItem(hd(U)) ),
    inference(modus_ponens,[status(thm)],[23,16]) ).

tff(25,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ~ ssList(sk3)
      | ( nil = sk3 )
      | ssItem(hd(sk3)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ~ ssList(sk3)
      | ( nil = sk3 )
      | ssItem(hd(sk3)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(26,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) )
    | ~ ssList(sk3)
    | ( nil = sk3 )
    | ssItem(hd(sk3)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(27,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) )
    | ~ ssList(sk3)
    | ( nil = sk3 )
    | ssItem(hd(sk3)) ),
    inference(modus_ponens,[status(thm)],[26,25]) ).

tff(28,plain,
    ( ( nil = sk3 )
    | ssItem(hd(sk3)) ),
    inference(unit_resolution,[status(thm)],[27,24,14]) ).

tff(29,plain,
    ssItem(hd(sk3)),
    inference(unit_resolution,[status(thm)],[28,11]) ).

tff(30,plain,
    ^ [V: $i,U: $i] :
      refl(( ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) ) )),
    inference(bind,[status(th)],[]) ).

tff(31,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ssList(cons(U,V)) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ssList(cons(U,V)) ) ),
    inference(quant_intro,[status(thm)],[30]) ).

tff(32,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ssList(cons(U,V)) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ssList(cons(U,V)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(33,plain,
    ^ [V: $i,U: $i] :
      rewrite(( ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) ) )),
    inference(bind,[status(th)],[]) ).

tff(34,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ssList(cons(U,V)) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ssList(cons(U,V)) ) ),
    inference(quant_intro,[status(thm)],[33]) ).

tff(35,axiom,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause86) ).

tff(36,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(modus_ponens,[status(thm)],[35,34]) ).

tff(37,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(modus_ponens,[status(thm)],[36,32]) ).

tff(38,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(skolemize,[status(sab)],[37]) ).

tff(39,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(modus_ponens,[status(thm)],[38,31]) ).

tff(40,plain,
    ( ssList(nil)
  <=> ssList(nil) ),
    inference(rewrite,[status(thm)],[]) ).

tff(41,axiom,
    ssList(nil),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause8) ).

tff(42,plain,
    ssList(nil),
    inference(modus_ponens,[status(thm)],[41,40]) ).

tff(43,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ssList(cons(hd(sk3),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ssList(cons(hd(sk3),nil)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(44,plain,
    ( ( ~ ssItem(hd(sk3))
      | ~ ssList(nil)
      | ssList(cons(hd(sk3),nil)) )
  <=> ( ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ssList(cons(hd(sk3),nil)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(45,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssItem(hd(sk3))
      | ~ ssList(nil)
      | ssList(cons(hd(sk3),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ssList(cons(hd(sk3),nil)) ) ),
    inference(monotonicity,[status(thm)],[44]) ).

tff(46,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssItem(hd(sk3))
      | ~ ssList(nil)
      | ssList(cons(hd(sk3),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ssList(cons(hd(sk3),nil)) ) ),
    inference(transitivity,[status(thm)],[45,43]) ).

tff(47,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) )
    | ~ ssItem(hd(sk3))
    | ~ ssList(nil)
    | ssList(cons(hd(sk3),nil)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(48,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) )
    | ~ ssList(nil)
    | ~ ssItem(hd(sk3))
    | ssList(cons(hd(sk3),nil)) ),
    inference(modus_ponens,[status(thm)],[47,46]) ).

tff(49,plain,
    ssList(cons(hd(sk3),nil)),
    inference(unit_resolution,[status(thm)],[48,42,39,29]) ).

tff(50,plain,
    ^ [U: $i] :
      refl(( ssList(skaf82(U))
      <=> ssList(skaf82(U)) )),
    inference(bind,[status(th)],[]) ).

tff(51,plain,
    ( ! [U: $i] : ssList(skaf82(U))
  <=> ! [U: $i] : ssList(skaf82(U)) ),
    inference(quant_intro,[status(thm)],[50]) ).

tff(52,plain,
    ( ! [U: $i] : ssList(skaf82(U))
  <=> ! [U: $i] : ssList(skaf82(U)) ),
    inference(rewrite,[status(thm)],[]) ).

tff(53,axiom,
    ! [U: $i] : ssList(skaf82(U)),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause13) ).

tff(54,plain,
    ! [U: $i] : ssList(skaf82(U)),
    inference(modus_ponens,[status(thm)],[53,52]) ).

tff(55,plain,
    ! [U: $i] : ssList(skaf82(U)),
    inference(skolemize,[status(sab)],[54]) ).

tff(56,plain,
    ! [U: $i] : ssList(skaf82(U)),
    inference(modus_ponens,[status(thm)],[55,51]) ).

tff(57,plain,
    ( ~ ! [U: $i] : ssList(skaf82(U))
    | ssList(skaf82(sk3)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(58,plain,
    ssList(skaf82(sk3)),
    inference(unit_resolution,[status(thm)],[57,56]) ).

tff(59,plain,
    ^ [U: $i] :
      refl(( ssItem(skaf83(U))
      <=> ssItem(skaf83(U)) )),
    inference(bind,[status(th)],[]) ).

tff(60,plain,
    ( ! [U: $i] : ssItem(skaf83(U))
  <=> ! [U: $i] : ssItem(skaf83(U)) ),
    inference(quant_intro,[status(thm)],[59]) ).

tff(61,plain,
    ( ! [U: $i] : ssItem(skaf83(U))
  <=> ! [U: $i] : ssItem(skaf83(U)) ),
    inference(rewrite,[status(thm)],[]) ).

tff(62,axiom,
    ! [U: $i] : ssItem(skaf83(U)),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause12) ).

tff(63,plain,
    ! [U: $i] : ssItem(skaf83(U)),
    inference(modus_ponens,[status(thm)],[62,61]) ).

tff(64,plain,
    ! [U: $i] : ssItem(skaf83(U)),
    inference(skolemize,[status(sab)],[63]) ).

tff(65,plain,
    ! [U: $i] : ssItem(skaf83(U)),
    inference(modus_ponens,[status(thm)],[64,60]) ).

tff(66,plain,
    ( ~ ! [U: $i] : ssItem(skaf83(U))
    | ssItem(skaf83(sk3)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(67,plain,
    ssItem(skaf83(sk3)),
    inference(unit_resolution,[status(thm)],[66,65]) ).

tff(68,plain,
    ^ [V: $i,U: $i] :
      refl(( ( ~ ssItem(U)
          | ~ ssList(V)
          | ( hd(cons(U,V)) = U ) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ( hd(cons(U,V)) = U ) ) )),
    inference(bind,[status(th)],[]) ).

tff(69,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( hd(cons(U,V)) = U ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( hd(cons(U,V)) = U ) ) ),
    inference(quant_intro,[status(thm)],[68]) ).

tff(70,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( hd(cons(U,V)) = U ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( hd(cons(U,V)) = U ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(71,plain,
    ^ [V: $i,U: $i] :
      rewrite(( ( ~ ssItem(U)
          | ~ ssList(V)
          | ( hd(cons(U,V)) = U ) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ( hd(cons(U,V)) = U ) ) )),
    inference(bind,[status(th)],[]) ).

tff(72,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( hd(cons(U,V)) = U ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( hd(cons(U,V)) = U ) ) ),
    inference(quant_intro,[status(thm)],[71]) ).

tff(73,axiom,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( hd(cons(U,V)) = U ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause97) ).

tff(74,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( hd(cons(U,V)) = U ) ),
    inference(modus_ponens,[status(thm)],[73,72]) ).

tff(75,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( hd(cons(U,V)) = U ) ),
    inference(modus_ponens,[status(thm)],[74,70]) ).

tff(76,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( hd(cons(U,V)) = U ) ),
    inference(skolemize,[status(sab)],[75]) ).

tff(77,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( hd(cons(U,V)) = U ) ),
    inference(modus_ponens,[status(thm)],[76,69]) ).

tff(78,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( hd(cons(U,V)) = U ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ( hd(cons(skaf83(sk3),skaf82(sk3))) = skaf83(sk3) ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( hd(cons(U,V)) = U ) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | ( hd(cons(skaf83(sk3),skaf82(sk3))) = skaf83(sk3) ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(79,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( hd(cons(U,V)) = U ) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | ( hd(cons(skaf83(sk3),skaf82(sk3))) = skaf83(sk3) ) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(80,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( hd(cons(U,V)) = U ) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | ( hd(cons(skaf83(sk3),skaf82(sk3))) = skaf83(sk3) ) ),
    inference(modus_ponens,[status(thm)],[79,78]) ).

tff(81,plain,
    ( ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | ( hd(cons(skaf83(sk3),skaf82(sk3))) = skaf83(sk3) ) ),
    inference(unit_resolution,[status(thm)],[80,77]) ).

tff(82,plain,
    hd(cons(skaf83(sk3),skaf82(sk3))) = skaf83(sk3),
    inference(unit_resolution,[status(thm)],[81,67,58]) ).

tff(83,plain,
    ^ [U: $i] :
      refl(( ( ~ ssList(U)
          | ( nil = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) ) )),
    inference(bind,[status(th)],[]) ).

tff(84,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(quant_intro,[status(thm)],[83]) ).

tff(85,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(86,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(87,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)],[86]) ).

tff(88,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( cons(skaf83(U),skaf82(U)) = U )
      | ( nil = U ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause109) ).

tff(89,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[88,87]) ).

tff(90,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[89,85]) ).

tff(91,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(skolemize,[status(sab)],[90]) ).

tff(92,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(skaf83(U),skaf82(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[91,84]) ).

tff(93,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ( cons(skaf83(U),skaf82(U)) = U ) )
      | ~ ssList(sk3)
      | ( nil = sk3 )
      | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ( cons(skaf83(U),skaf82(U)) = U ) )
      | ~ ssList(sk3)
      | ( nil = sk3 )
      | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(94,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) )
    | ~ ssList(sk3)
    | ( nil = sk3 )
    | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(95,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ( cons(skaf83(U),skaf82(U)) = U ) )
    | ~ ssList(sk3)
    | ( nil = sk3 )
    | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[94,93]) ).

tff(96,plain,
    ( ( nil = sk3 )
    | ( cons(skaf83(sk3),skaf82(sk3)) = sk3 ) ),
    inference(unit_resolution,[status(thm)],[95,92,14]) ).

tff(97,plain,
    cons(skaf83(sk3),skaf82(sk3)) = sk3,
    inference(unit_resolution,[status(thm)],[96,11]) ).

tff(98,plain,
    hd(cons(skaf83(sk3),skaf82(sk3))) = hd(sk3),
    inference(monotonicity,[status(thm)],[97]) ).

tff(99,plain,
    hd(sk3) = hd(cons(skaf83(sk3),skaf82(sk3))),
    inference(symmetry,[status(thm)],[98]) ).

tff(100,plain,
    hd(sk3) = skaf83(sk3),
    inference(transitivity,[status(thm)],[99,82]) ).

tff(101,plain,
    sk3 = cons(skaf83(sk3),skaf82(sk3)),
    inference(symmetry,[status(thm)],[97]) ).

tff(102,plain,
    ( memberP(sk3,hd(sk3))
  <=> memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3)) ),
    inference(monotonicity,[status(thm)],[101,100]) ).

tff(103,plain,
    ( memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3))
  <=> memberP(sk3,hd(sk3)) ),
    inference(symmetry,[status(thm)],[102]) ).

tff(104,plain,
    ^ [W: $i,V: $i] :
      refl(( ( ~ ssItem(V)
          | ~ ssList(W)
          | memberP(cons(V,W),V) )
      <=> ( ~ ssItem(V)
          | ~ ssList(W)
          | memberP(cons(V,W),V) ) )),
    inference(bind,[status(th)],[]) ).

tff(105,plain,
    ( ! [W: $i,V: $i] :
        ( ~ ssItem(V)
        | ~ ssList(W)
        | memberP(cons(V,W),V) )
  <=> ! [W: $i,V: $i] :
        ( ~ ssItem(V)
        | ~ ssList(W)
        | memberP(cons(V,W),V) ) ),
    inference(quant_intro,[status(thm)],[104]) ).

tff(106,plain,
    ( ! [W: $i,V: $i] :
        ( ~ ssItem(V)
        | ~ ssList(W)
        | memberP(cons(V,W),V) )
  <=> ! [W: $i,V: $i] :
        ( ~ ssItem(V)
        | ~ ssList(W)
        | memberP(cons(V,W),V) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(107,plain,
    ^ [W: $i,V: $i] :
      rewrite(( ( memberP(cons(V,W),V)
          | ~ ssItem(V)
          | ~ ssItem(V)
          | ~ ssList(W) )
      <=> ( ~ ssItem(V)
          | ~ ssList(W)
          | memberP(cons(V,W),V) ) )),
    inference(bind,[status(th)],[]) ).

tff(108,plain,
    ( ! [W: $i,V: $i] :
        ( memberP(cons(V,W),V)
        | ~ ssItem(V)
        | ~ ssItem(V)
        | ~ ssList(W) )
  <=> ! [W: $i,V: $i] :
        ( ~ ssItem(V)
        | ~ ssList(W)
        | memberP(cons(V,W),V) ) ),
    inference(quant_intro,[status(thm)],[107]) ).

tff(109,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( memberP(cons(V,W),V)
        | ~ ssItem(V)
        | ~ ssItem(V)
        | ~ ssList(W) )
  <=> ! [W: $i,V: $i] :
        ( memberP(cons(V,W),V)
        | ~ ssItem(V)
        | ~ ssItem(V)
        | ~ ssList(W) ) ),
    inference(elim_unused_vars,[status(thm)],[]) ).

tff(110,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] :
        ( memberP(cons(V,W),V)
        | ~ ssItem(V)
        | ~ ssItem(V)
        | ~ ssList(W) ) ),
    inference(destructive_equality_resolution,[status(thm)],[]) ).

tff(111,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssItem(V)
        | ( U != V )
        | ~ ssList(W)
        | memberP(cons(V,W),U) )
  <=> ! [W: $i,V: $i] :
        ( memberP(cons(V,W),V)
        | ~ ssItem(V)
        | ~ ssItem(V)
        | ~ ssList(W) ) ),
    inference(transitivity,[status(thm)],[110,109]) ).

tff(112,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssItem(V)
        | ( U != V )
        | ~ ssList(W)
        | memberP(cons(V,W),U) )
  <=> ! [W: $i,V: $i] :
        ( ~ ssItem(V)
        | ~ ssList(W)
        | memberP(cons(V,W),V) ) ),
    inference(transitivity,[status(thm)],[111,108]) ).

tff(113,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(114,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)],[113]) ).

tff(115,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ( U != V )
        | ~ ssList(W)
        | ~ ssItem(V)
        | ~ ssItem(U)
        | memberP(cons(V,W),U) )
  <=> ! [W: $i,V: $i] :
        ( ~ ssItem(V)
        | ~ ssList(W)
        | memberP(cons(V,W),V) ) ),
    inference(transitivity,[status(thm)],[114,112]) ).

tff(116,axiom,
    ! [W: $i,V: $i,U: $i] :
      ( ( U != V )
      | ~ ssList(W)
      | ~ ssItem(V)
      | ~ ssItem(U)
      | memberP(cons(V,W),U) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause138) ).

tff(117,plain,
    ! [W: $i,V: $i] :
      ( ~ ssItem(V)
      | ~ ssList(W)
      | memberP(cons(V,W),V) ),
    inference(modus_ponens,[status(thm)],[116,115]) ).

tff(118,plain,
    ! [W: $i,V: $i] :
      ( ~ ssItem(V)
      | ~ ssList(W)
      | memberP(cons(V,W),V) ),
    inference(modus_ponens,[status(thm)],[117,106]) ).

tff(119,plain,
    ! [W: $i,V: $i] :
      ( ~ ssItem(V)
      | ~ ssList(W)
      | memberP(cons(V,W),V) ),
    inference(skolemize,[status(sab)],[118]) ).

tff(120,plain,
    ! [W: $i,V: $i] :
      ( ~ ssItem(V)
      | ~ ssList(W)
      | memberP(cons(V,W),V) ),
    inference(modus_ponens,[status(thm)],[119,105]) ).

tff(121,plain,
    ( ( ~ ! [W: $i,V: $i] :
            ( ~ ssItem(V)
            | ~ ssList(W)
            | memberP(cons(V,W),V) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3)) )
  <=> ( ~ ! [W: $i,V: $i] :
            ( ~ ssItem(V)
            | ~ ssList(W)
            | memberP(cons(V,W),V) )
      | ~ ssItem(skaf83(sk3))
      | ~ ssList(skaf82(sk3))
      | memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(122,plain,
    ( ~ ! [W: $i,V: $i] :
          ( ~ ssItem(V)
          | ~ ssList(W)
          | memberP(cons(V,W),V) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(123,plain,
    ( ~ ! [W: $i,V: $i] :
          ( ~ ssItem(V)
          | ~ ssList(W)
          | memberP(cons(V,W),V) )
    | ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3)) ),
    inference(modus_ponens,[status(thm)],[122,121]) ).

tff(124,plain,
    ( ~ ssItem(skaf83(sk3))
    | ~ ssList(skaf82(sk3))
    | memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3)) ),
    inference(unit_resolution,[status(thm)],[123,120]) ).

tff(125,plain,
    memberP(cons(skaf83(sk3),skaf82(sk3)),skaf83(sk3)),
    inference(unit_resolution,[status(thm)],[124,67,58]) ).

tff(126,plain,
    memberP(sk3,hd(sk3)),
    inference(modus_ponens,[status(thm)],[125,103]) ).

tff(127,plain,
    ^ [A: $i] :
      refl(( ( ~ ssItem(A)
          | ssList(sk5(A))
          | ~ memberP(sk3,A) )
      <=> ( ~ ssItem(A)
          | ssList(sk5(A))
          | ~ memberP(sk3,A) ) )),
    inference(bind,[status(th)],[]) ).

tff(128,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ssList(sk5(A))
        | ~ memberP(sk3,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ssList(sk5(A))
        | ~ memberP(sk3,A) ) ),
    inference(quant_intro,[status(thm)],[127]) ).

tff(129,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ssList(sk5(A))
        | ~ memberP(sk3,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ssList(sk5(A))
        | ~ memberP(sk3,A) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(130,plain,
    ^ [A: $i] :
      rewrite(( ( ~ ssItem(A)
          | ssList(sk5(A))
          | ~ memberP(sk3,A) )
      <=> ( ~ ssItem(A)
          | ssList(sk5(A))
          | ~ memberP(sk3,A) ) )),
    inference(bind,[status(th)],[]) ).

tff(131,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ssList(sk5(A))
        | ~ memberP(sk3,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ssList(sk5(A))
        | ~ memberP(sk3,A) ) ),
    inference(quant_intro,[status(thm)],[130]) ).

tff(132,axiom,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ssList(sk5(A))
      | ~ memberP(sk3,A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_10) ).

tff(133,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ssList(sk5(A))
      | ~ memberP(sk3,A) ),
    inference(modus_ponens,[status(thm)],[132,131]) ).

tff(134,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ssList(sk5(A))
      | ~ memberP(sk3,A) ),
    inference(modus_ponens,[status(thm)],[133,129]) ).

tff(135,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ssList(sk5(A))
      | ~ memberP(sk3,A) ),
    inference(skolemize,[status(sab)],[134]) ).

tff(136,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ssList(sk5(A))
      | ~ memberP(sk3,A) ),
    inference(modus_ponens,[status(thm)],[135,128]) ).

tff(137,plain,
    ( ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ssList(sk5(A))
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk3,hd(sk3))
      | ssList(sk5(hd(sk3))) )
  <=> ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ssList(sk5(A))
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk3,hd(sk3))
      | ssList(sk5(hd(sk3))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(138,plain,
    ( ( ~ ssItem(hd(sk3))
      | ssList(sk5(hd(sk3)))
      | ~ memberP(sk3,hd(sk3)) )
  <=> ( ~ ssItem(hd(sk3))
      | ~ memberP(sk3,hd(sk3))
      | ssList(sk5(hd(sk3))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(139,plain,
    ( ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ssList(sk5(A))
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | ssList(sk5(hd(sk3)))
      | ~ memberP(sk3,hd(sk3)) )
  <=> ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ssList(sk5(A))
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk3,hd(sk3))
      | ssList(sk5(hd(sk3))) ) ),
    inference(monotonicity,[status(thm)],[138]) ).

tff(140,plain,
    ( ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ssList(sk5(A))
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | ssList(sk5(hd(sk3)))
      | ~ memberP(sk3,hd(sk3)) )
  <=> ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ssList(sk5(A))
            | ~ memberP(sk3,A) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk3,hd(sk3))
      | ssList(sk5(hd(sk3))) ) ),
    inference(transitivity,[status(thm)],[139,137]) ).

tff(141,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | ssList(sk5(A))
          | ~ memberP(sk3,A) )
    | ~ ssItem(hd(sk3))
    | ssList(sk5(hd(sk3)))
    | ~ memberP(sk3,hd(sk3)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(142,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | ssList(sk5(A))
          | ~ memberP(sk3,A) )
    | ~ ssItem(hd(sk3))
    | ~ memberP(sk3,hd(sk3))
    | ssList(sk5(hd(sk3))) ),
    inference(modus_ponens,[status(thm)],[141,140]) ).

tff(143,plain,
    ( ~ memberP(sk3,hd(sk3))
    | ssList(sk5(hd(sk3))) ),
    inference(unit_resolution,[status(thm)],[142,136,29]) ).

tff(144,plain,
    ssList(sk5(hd(sk3))),
    inference(unit_resolution,[status(thm)],[143,126]) ).

tff(145,plain,
    ^ [V: $i,U: $i] :
      refl(( ( ~ ssList(U)
          | ssList(app(V,U))
          | ~ ssList(V) )
      <=> ( ~ ssList(U)
          | ssList(app(V,U))
          | ~ ssList(V) ) )),
    inference(bind,[status(th)],[]) ).

tff(146,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ssList(app(V,U))
        | ~ ssList(V) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ssList(app(V,U))
        | ~ ssList(V) ) ),
    inference(quant_intro,[status(thm)],[145]) ).

tff(147,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ssList(app(V,U))
        | ~ ssList(V) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ssList(app(V,U))
        | ~ ssList(V) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(148,plain,
    ^ [V: $i,U: $i] :
      rewrite(( ( ~ ssList(U)
          | ~ ssList(V)
          | ssList(app(V,U)) )
      <=> ( ~ ssList(U)
          | ssList(app(V,U))
          | ~ ssList(V) ) )),
    inference(bind,[status(th)],[]) ).

tff(149,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ssList(app(V,U)) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ssList(app(V,U))
        | ~ ssList(V) ) ),
    inference(quant_intro,[status(thm)],[148]) ).

tff(150,axiom,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ssList(app(V,U)) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause85) ).

tff(151,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ssList(app(V,U))
      | ~ ssList(V) ),
    inference(modus_ponens,[status(thm)],[150,149]) ).

tff(152,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ssList(app(V,U))
      | ~ ssList(V) ),
    inference(modus_ponens,[status(thm)],[151,147]) ).

tff(153,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ssList(app(V,U))
      | ~ ssList(V) ),
    inference(skolemize,[status(sab)],[152]) ).

tff(154,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ssList(app(V,U))
      | ~ ssList(V) ),
    inference(modus_ponens,[status(thm)],[153,146]) ).

tff(155,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(cons(hd(sk3),nil))
      | ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(cons(hd(sk3),nil))
      | ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(156,plain,
    ( ( ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ~ ssList(cons(hd(sk3),nil)) )
  <=> ( ~ ssList(cons(hd(sk3),nil))
      | ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(157,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ~ ssList(cons(hd(sk3),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(cons(hd(sk3),nil))
      | ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ) ),
    inference(monotonicity,[status(thm)],[156]) ).

tff(158,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ~ ssList(cons(hd(sk3),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(cons(hd(sk3),nil))
      | ~ ssList(sk5(hd(sk3)))
      | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ) ),
    inference(transitivity,[status(thm)],[157,155]) ).

tff(159,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ssList(app(V,U))
          | ~ ssList(V) )
    | ~ ssList(sk5(hd(sk3)))
    | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
    | ~ ssList(cons(hd(sk3),nil)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(160,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ssList(app(V,U))
          | ~ ssList(V) )
    | ~ ssList(cons(hd(sk3),nil))
    | ~ ssList(sk5(hd(sk3)))
    | ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ),
    inference(modus_ponens,[status(thm)],[159,158]) ).

tff(161,plain,
    ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))),
    inference(unit_resolution,[status(thm)],[160,154,144,49]) ).

tff(162,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(cons(hd(sk3),nil))
      | ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ssList(app(V,U))
            | ~ ssList(V) )
      | ~ ssList(cons(hd(sk3),nil))
      | ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(163,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ssList(app(V,U))
          | ~ ssList(V) )
    | ~ ssList(cons(hd(sk3),nil))
    | ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(164,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ssList(app(V,U))
          | ~ ssList(V) )
    | ~ ssList(cons(hd(sk3),nil))
    | ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ),
    inference(modus_ponens,[status(thm)],[163,162]) ).

tff(165,plain,
    ( ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3)))) ),
    inference(unit_resolution,[status(thm)],[164,154,49]) ).

tff(166,plain,
    ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))),
    inference(unit_resolution,[status(thm)],[165,161]) ).

tff(167,plain,
    ( ( sk2 = sk4 )
  <=> ( sk2 = sk4 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(168,axiom,
    sk2 = sk4,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_6) ).

tff(169,plain,
    sk2 = sk4,
    inference(modus_ponens,[status(thm)],[168,167]) ).

tff(170,plain,
    ( ( nil = sk2 )
  <=> ( nil = sk2 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(171,axiom,
    nil = sk2,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_5) ).

tff(172,plain,
    nil = sk2,
    inference(modus_ponens,[status(thm)],[171,170]) ).

tff(173,plain,
    nil = sk4,
    inference(transitivity,[status(thm)],[172,169]) ).

tff(174,plain,
    ( segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
  <=> segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) ),
    inference(monotonicity,[status(thm)],[173]) ).

tff(175,plain,
    ( segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
  <=> segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) ),
    inference(symmetry,[status(thm)],[174]) ).

tff(176,plain,
    ^ [A: $i] :
      refl(( ( ~ ssItem(A)
          | ~ memberP(sk3,A)
          | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) )
      <=> ( ~ ssItem(A)
          | ~ memberP(sk3,A)
          | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ) )),
    inference(bind,[status(th)],[]) ).

tff(177,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ~ memberP(sk3,A)
        | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ~ memberP(sk3,A)
        | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ) ),
    inference(quant_intro,[status(thm)],[176]) ).

tff(178,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ~ memberP(sk3,A)
        | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ~ memberP(sk3,A)
        | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(179,plain,
    ^ [A: $i] :
      rewrite(( ( ~ ssItem(A)
          | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil)))
          | ~ memberP(sk3,A) )
      <=> ( ~ ssItem(A)
          | ~ memberP(sk3,A)
          | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ) )),
    inference(bind,[status(th)],[]) ).

tff(180,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil)))
        | ~ memberP(sk3,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ~ memberP(sk3,A)
        | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ) ),
    inference(quant_intro,[status(thm)],[179]) ).

tff(181,axiom,
    ! [A: $i] :
      ( ~ ssItem(A)
      | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil)))
      | ~ memberP(sk3,A) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_11) ).

tff(182,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ memberP(sk3,A)
      | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ),
    inference(modus_ponens,[status(thm)],[181,180]) ).

tff(183,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ memberP(sk3,A)
      | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ),
    inference(modus_ponens,[status(thm)],[182,178]) ).

tff(184,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ memberP(sk3,A)
      | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ),
    inference(skolemize,[status(sab)],[183]) ).

tff(185,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ memberP(sk3,A)
      | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) ),
    inference(modus_ponens,[status(thm)],[184,177]) ).

tff(186,plain,
    ( ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ~ memberP(sk3,A)
            | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk3,hd(sk3))
      | segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) )
  <=> ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ~ memberP(sk3,A)
            | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) )
      | ~ ssItem(hd(sk3))
      | ~ memberP(sk3,hd(sk3))
      | segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(187,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | ~ memberP(sk3,A)
          | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) )
    | ~ ssItem(hd(sk3))
    | ~ memberP(sk3,hd(sk3))
    | segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(188,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | ~ memberP(sk3,A)
          | segmentP(sk4,app(app(cons(A,nil),sk5(A)),cons(A,nil))) )
    | ~ ssItem(hd(sk3))
    | ~ memberP(sk3,hd(sk3))
    | segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) ),
    inference(modus_ponens,[status(thm)],[187,186]) ).

tff(189,plain,
    ( ~ memberP(sk3,hd(sk3))
    | segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) ),
    inference(unit_resolution,[status(thm)],[188,185,29]) ).

tff(190,plain,
    segmentP(sk4,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))),
    inference(unit_resolution,[status(thm)],[189,126]) ).

tff(191,plain,
    segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))),
    inference(modus_ponens,[status(thm)],[190,175]) ).

tff(192,plain,
    ( ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) )
  <=> ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) = nil ) ),
    inference(commutativity,[status(thm)],[]) ).

tff(193,plain,
    ( ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) = nil )
  <=> ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ),
    inference(symmetry,[status(thm)],[192]) ).

tff(194,plain,
    ( ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil )
  <=> ( nil != app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ),
    inference(monotonicity,[status(thm)],[193]) ).

tff(195,plain,
    ( ( nil = cons(hd(sk3),nil) )
  <=> ( cons(hd(sk3),nil) = nil ) ),
    inference(commutativity,[status(thm)],[]) ).

tff(196,plain,
    ( ( cons(hd(sk3),nil) = nil )
  <=> ( nil = cons(hd(sk3),nil) ) ),
    inference(symmetry,[status(thm)],[195]) ).

tff(197,plain,
    ( ( cons(hd(sk3),nil) != nil )
  <=> ( nil != cons(hd(sk3),nil) ) ),
    inference(monotonicity,[status(thm)],[196]) ).

tff(198,plain,
    ^ [V: $i,U: $i] :
      refl(( ( ~ ssItem(U)
          | ~ ssList(V)
          | ( cons(U,V) != V ) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ( cons(U,V) != V ) ) )),
    inference(bind,[status(th)],[]) ).

tff(199,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( cons(U,V) != V ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( cons(U,V) != V ) ) ),
    inference(quant_intro,[status(thm)],[198]) ).

tff(200,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( cons(U,V) != V ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( cons(U,V) != V ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(201,plain,
    ^ [V: $i,U: $i] :
      trans(monotonicity(rewrite(( ( ( cons(U,V) != V )
              | ~ ssItem(U) )
          <=> ( ~ ssItem(U)
              | ( cons(U,V) != V ) ) )),
          ( ( ( cons(U,V) != V )
            | ~ ssItem(U)
            | ~ ssList(V) )
        <=> ( ~ ssItem(U)
            | ( cons(U,V) != V )
            | ~ ssList(V) ) )),
        rewrite(( ( ~ ssItem(U)
            | ( cons(U,V) != V )
            | ~ ssList(V) )
        <=> ( ~ ssItem(U)
            | ~ ssList(V)
            | ( cons(U,V) != V ) ) )),
        ( ( ( cons(U,V) != V )
          | ~ ssItem(U)
          | ~ ssList(V) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ( cons(U,V) != V ) ) )),
    inference(bind,[status(th)],[]) ).

tff(202,plain,
    ( ! [V: $i,U: $i] :
        ( ( cons(U,V) != V )
        | ~ ssItem(U)
        | ~ ssList(V) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( cons(U,V) != V ) ) ),
    inference(quant_intro,[status(thm)],[201]) ).

tff(203,axiom,
    ! [V: $i,U: $i] :
      ( ( cons(U,V) != V )
      | ~ ssItem(U)
      | ~ ssList(V) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause99) ).

tff(204,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( cons(U,V) != V ) ),
    inference(modus_ponens,[status(thm)],[203,202]) ).

tff(205,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( cons(U,V) != V ) ),
    inference(modus_ponens,[status(thm)],[204,200]) ).

tff(206,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( cons(U,V) != V ) ),
    inference(skolemize,[status(sab)],[205]) ).

tff(207,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( cons(U,V) != V ) ),
    inference(modus_ponens,[status(thm)],[206,199]) ).

tff(208,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( cons(U,V) != V ) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ( cons(hd(sk3),nil) != nil ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( cons(U,V) != V ) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ( cons(hd(sk3),nil) != nil ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(209,plain,
    ( ( ~ ssItem(hd(sk3))
      | ~ ssList(nil)
      | ( cons(hd(sk3),nil) != nil ) )
  <=> ( ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ( cons(hd(sk3),nil) != nil ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(210,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( cons(U,V) != V ) )
      | ~ ssItem(hd(sk3))
      | ~ ssList(nil)
      | ( cons(hd(sk3),nil) != nil ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( cons(U,V) != V ) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ( cons(hd(sk3),nil) != nil ) ) ),
    inference(monotonicity,[status(thm)],[209]) ).

tff(211,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( cons(U,V) != V ) )
      | ~ ssItem(hd(sk3))
      | ~ ssList(nil)
      | ( cons(hd(sk3),nil) != nil ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( cons(U,V) != V ) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk3))
      | ( cons(hd(sk3),nil) != nil ) ) ),
    inference(transitivity,[status(thm)],[210,208]) ).

tff(212,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( cons(U,V) != V ) )
    | ~ ssItem(hd(sk3))
    | ~ ssList(nil)
    | ( cons(hd(sk3),nil) != nil ) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(213,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( cons(U,V) != V ) )
    | ~ ssList(nil)
    | ~ ssItem(hd(sk3))
    | ( cons(hd(sk3),nil) != nil ) ),
    inference(modus_ponens,[status(thm)],[212,211]) ).

tff(214,plain,
    cons(hd(sk3),nil) != nil,
    inference(unit_resolution,[status(thm)],[213,42,207,29]) ).

tff(215,plain,
    nil != cons(hd(sk3),nil),
    inference(modus_ponens,[status(thm)],[214,197]) ).

tff(216,plain,
    ^ [V: $i,U: $i] :
      refl(( ( ~ ssList(U)
          | ~ ssList(V)
          | ( app(U,V) != nil )
          | ( nil = V ) )
      <=> ( ~ ssList(U)
          | ~ ssList(V)
          | ( app(U,V) != nil )
          | ( nil = V ) ) )),
    inference(bind,[status(th)],[]) ).

tff(217,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ( app(U,V) != nil )
        | ( nil = V ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ( app(U,V) != nil )
        | ( nil = V ) ) ),
    inference(quant_intro,[status(thm)],[216]) ).

tff(218,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ( app(U,V) != nil )
        | ( nil = V ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ( app(U,V) != nil )
        | ( nil = V ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(219,plain,
    ^ [V: $i,U: $i] :
      trans(monotonicity(trans(monotonicity(rewrite(( ( ( app(U,V) != nil )
                  | ~ ssList(V) )
              <=> ( ~ ssList(V)
                  | ( app(U,V) != nil ) ) )),
              ( ( ( app(U,V) != nil )
                | ~ ssList(V)
                | ~ ssList(U) )
            <=> ( ~ ssList(V)
                | ( app(U,V) != nil )
                | ~ ssList(U) ) )),
            rewrite(( ( ~ ssList(V)
                | ( app(U,V) != nil )
                | ~ ssList(U) )
            <=> ( ~ ssList(U)
                | ~ ssList(V)
                | ( app(U,V) != nil ) ) )),
            ( ( ( app(U,V) != nil )
              | ~ ssList(V)
              | ~ ssList(U) )
          <=> ( ~ ssList(U)
              | ~ ssList(V)
              | ( app(U,V) != nil ) ) )),
          ( ( ( app(U,V) != nil )
            | ~ ssList(V)
            | ~ ssList(U)
            | ( nil = V ) )
        <=> ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) ) )),
        rewrite(( ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) )
        <=> ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) ) )),
        ( ( ( app(U,V) != nil )
          | ~ ssList(V)
          | ~ ssList(U)
          | ( nil = V ) )
      <=> ( ~ ssList(U)
          | ~ ssList(V)
          | ( app(U,V) != nil )
          | ( nil = V ) ) )),
    inference(bind,[status(th)],[]) ).

tff(220,plain,
    ( ! [V: $i,U: $i] :
        ( ( app(U,V) != nil )
        | ~ ssList(V)
        | ~ ssList(U)
        | ( nil = V ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ( app(U,V) != nil )
        | ( nil = V ) ) ),
    inference(quant_intro,[status(thm)],[219]) ).

tff(221,axiom,
    ! [V: $i,U: $i] :
      ( ( app(U,V) != nil )
      | ~ ssList(V)
      | ~ ssList(U)
      | ( nil = V ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause119) ).

tff(222,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ( app(U,V) != nil )
      | ( nil = V ) ),
    inference(modus_ponens,[status(thm)],[221,220]) ).

tff(223,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ( app(U,V) != nil )
      | ( nil = V ) ),
    inference(modus_ponens,[status(thm)],[222,218]) ).

tff(224,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ( app(U,V) != nil )
      | ( nil = V ) ),
    inference(skolemize,[status(sab)],[223]) ).

tff(225,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ( app(U,V) != nil )
      | ( nil = V ) ),
    inference(modus_ponens,[status(thm)],[224,217]) ).

tff(226,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) )
      | ~ ssList(cons(hd(sk3),nil))
      | ( nil = cons(hd(sk3),nil) )
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) )
      | ~ ssList(cons(hd(sk3),nil))
      | ( nil = cons(hd(sk3),nil) )
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(227,plain,
    ( ( ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ~ ssList(cons(hd(sk3),nil))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil )
      | ( nil = cons(hd(sk3),nil) ) )
  <=> ( ~ ssList(cons(hd(sk3),nil))
      | ( nil = cons(hd(sk3),nil) )
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(228,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) )
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ~ ssList(cons(hd(sk3),nil))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil )
      | ( nil = cons(hd(sk3),nil) ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) )
      | ~ ssList(cons(hd(sk3),nil))
      | ( nil = cons(hd(sk3),nil) )
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil ) ) ),
    inference(monotonicity,[status(thm)],[227]) ).

tff(229,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) )
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ~ ssList(cons(hd(sk3),nil))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil )
      | ( nil = cons(hd(sk3),nil) ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ( app(U,V) != nil )
            | ( nil = V ) )
      | ~ ssList(cons(hd(sk3),nil))
      | ( nil = cons(hd(sk3),nil) )
      | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
      | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil ) ) ),
    inference(transitivity,[status(thm)],[228,226]) ).

tff(230,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssList(V)
          | ( app(U,V) != nil )
          | ( nil = V ) )
    | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
    | ~ ssList(cons(hd(sk3),nil))
    | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil )
    | ( nil = cons(hd(sk3),nil) ) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(231,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssList(V)
          | ( app(U,V) != nil )
          | ( nil = V ) )
    | ~ ssList(cons(hd(sk3),nil))
    | ( nil = cons(hd(sk3),nil) )
    | ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
    | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil ) ),
    inference(modus_ponens,[status(thm)],[230,229]) ).

tff(232,plain,
    ( ~ ssList(app(cons(hd(sk3),nil),sk5(hd(sk3))))
    | ( app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil ) ),
    inference(unit_resolution,[status(thm)],[231,225,49,215]) ).

tff(233,plain,
    app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) != nil,
    inference(unit_resolution,[status(thm)],[232,161]) ).

tff(234,plain,
    nil != app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)),
    inference(modus_ponens,[status(thm)],[233,194]) ).

tff(235,plain,
    ^ [U: $i] :
      refl(( ( ~ ssList(U)
          | ( nil = U )
          | ~ segmentP(nil,U) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ~ segmentP(nil,U) ) )),
    inference(bind,[status(th)],[]) ).

tff(236,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ~ segmentP(nil,U) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ~ segmentP(nil,U) ) ),
    inference(quant_intro,[status(thm)],[235]) ).

tff(237,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ~ segmentP(nil,U) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ~ segmentP(nil,U) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(238,plain,
    ^ [U: $i] :
      trans(monotonicity(rewrite(( ( ~ segmentP(nil,U)
              | ~ ssList(U) )
          <=> ( ~ ssList(U)
              | ~ segmentP(nil,U) ) )),
          ( ( ~ segmentP(nil,U)
            | ~ ssList(U)
            | ( nil = U ) )
        <=> ( ~ ssList(U)
            | ~ segmentP(nil,U)
            | ( nil = U ) ) )),
        rewrite(( ( ~ ssList(U)
            | ~ segmentP(nil,U)
            | ( nil = U ) )
        <=> ( ~ ssList(U)
            | ( nil = U )
            | ~ segmentP(nil,U) ) )),
        ( ( ~ segmentP(nil,U)
          | ~ ssList(U)
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ~ segmentP(nil,U) ) )),
    inference(bind,[status(th)],[]) ).

tff(239,plain,
    ( ! [U: $i] :
        ( ~ segmentP(nil,U)
        | ~ ssList(U)
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ~ segmentP(nil,U) ) ),
    inference(quant_intro,[status(thm)],[238]) ).

tff(240,axiom,
    ! [U: $i] :
      ( ~ segmentP(nil,U)
      | ~ ssList(U)
      | ( nil = U ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause80) ).

tff(241,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ~ segmentP(nil,U) ),
    inference(modus_ponens,[status(thm)],[240,239]) ).

tff(242,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ~ segmentP(nil,U) ),
    inference(modus_ponens,[status(thm)],[241,237]) ).

tff(243,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ~ segmentP(nil,U) ),
    inference(skolemize,[status(sab)],[242]) ).

tff(244,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ~ segmentP(nil,U) ),
    inference(modus_ponens,[status(thm)],[243,236]) ).

tff(245,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ~ segmentP(nil,U) )
      | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ~ segmentP(nil,U) )
      | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(246,plain,
    ( ( ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) )
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) )
  <=> ( ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(247,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ~ segmentP(nil,U) )
      | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) )
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ~ segmentP(nil,U) )
      | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ) ),
    inference(monotonicity,[status(thm)],[246]) ).

tff(248,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ~ segmentP(nil,U) )
      | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) )
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ~ segmentP(nil,U) )
      | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
      | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ) ),
    inference(transitivity,[status(thm)],[247,245]) ).

tff(249,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ~ segmentP(nil,U) )
    | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) )
    | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(250,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ~ segmentP(nil,U) )
    | ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ),
    inference(modus_ponens,[status(thm)],[249,248]) ).

tff(251,plain,
    ( ~ ssList(app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ~ segmentP(nil,app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)))
    | ( nil = app(app(cons(hd(sk3),nil),sk5(hd(sk3))),cons(hd(sk3),nil)) ) ),
    inference(unit_resolution,[status(thm)],[250,244]) ).

tff(252,plain,
    $false,
    inference(unit_resolution,[status(thm)],[251,234,191,166]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.11  % Problem    : SWC045-1 : TPTP v9.0.0. Released v2.4.0.
% 0.07/0.11  % Command    : run_E %s %d THM
% 0.12/0.33  % Computer : n003.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit   : 300
% 0.12/0.33  % WCLimit    : 300
% 0.12/0.33  % DateTime   : Fri Jun 20 08:06:54 EDT 2025
% 0.12/0.33  % CPUTime    : 
% 1.60/1.76  % SZS status Unsatisfiable
% 1.60/1.76  % SZS output start Proof
% See solution above
% 1.60/1.79  % E exiting
%------------------------------------------------------------------------------