TSTP Solution File: SWC380-1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SWC380-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n013.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 11:57:33 EDT 2022

% Result   : Unsatisfiable 0.20s 0.46s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   15
%            Number of leaves      :   64
% Syntax   : Number of formulae    :  133 (  31 unt;  13 typ;   0 def)
%            Number of atoms       :  767 ( 185 equ)
%            Maximal formula atoms :   24 (   6 avg)
%            Number of connectives : 1129 ( 555   ~; 488   |;   0   &)
%                                         (  86 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of FOOLs       :   73 (  73 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   10 (   6   >;   4   *;   0   +;   0  <<)
%            Number of predicates  :   15 (  12 usr;   2 prp; 0-3 aty)
%            Number of functors    :    9 (   9 usr;   7 con; 0-2 aty)
%            Number of variables   :  156 ( 139   !;   0   ?; 156   :)

% Comments : 
%------------------------------------------------------------------------------
tff(sk4_type,type,
    sk4: $i ).

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

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

tff(sk6_type,type,
    sk6: $i ).

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

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

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

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

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

tff(neq_type,type,
    neq: ( $i * $i ) > $o ).

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

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

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

tff(1,plain,
    ( ssList(sk2)
  <=> ssList(sk4) ),
    inference(rewrite,[status(thm)],]) ).

tff(2,plain,
    ( ssList(sk2)
  <=> ssList(sk2) ),
    inference(rewrite,[status(thm)],]) ).

tff(3,axiom,
    ssList(sk2),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_2) ).

tff(4,plain,
    ssList(sk2),
    inference(modus_ponens,[status(thm)],[3,2]) ).

tff(5,plain,
    ssList(sk4),
    inference(modus_ponens,[status(thm)],[4,1]) ).

tff(6,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ( app(nil,U) = U ) )
      <=> ( ~ ssList(U)
          | ( app(nil,U) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(7,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( app(nil,U) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( app(nil,U) = U ) ) ),
    inference(quant_intro,[status(thm)],[6]) ).

tff(8,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( app(nil,U) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( app(nil,U) = U ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(9,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( app(nil,U) = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause74) ).

tff(10,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( app(nil,U) = U ) ),
    inference(modus_ponens,[status(thm)],[9,8]) ).

tff(11,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( app(nil,U) = U ) ),
    inference(skolemize,[status(sab)],[10]) ).

tff(12,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( app(nil,U) = U ) ),
    inference(modus_ponens,[status(thm)],[11,7]) ).

tff(13,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( app(nil,U) = U ) )
      | ~ ssList(sk4)
      | ( app(nil,sk4) = sk4 ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( app(nil,U) = U ) )
      | ~ ssList(sk4)
      | ( app(nil,sk4) = sk4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(14,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( app(nil,U) = U ) )
    | ~ ssList(sk4)
    | ( app(nil,sk4) = sk4 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(15,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( app(nil,U) = U ) )
    | ~ ssList(sk4)
    | ( app(nil,sk4) = sk4 ) ),
    inference(modus_ponens,[status(thm)],[14,13]) ).

tff(16,plain,
    app(nil,sk4) = sk4,
    inference(unit_resolution,[status(thm)],[15,12,5]) ).

tff(17,plain,
    ( ( $false
      | ( app(sk3,sk6) = sk4 ) )
  <=> ( app(sk3,sk6) = sk4 ) ),
    inference(rewrite,[status(thm)],]) ).

tff(18,plain,
    ( ( app(cons(sk5,nil),sk6) = sk4 )
  <=> ( app(sk3,sk6) = sk4 ) ),
    inference(rewrite,[status(thm)],]) ).

tff(19,plain,
    ( ~ $true
  <=> $false ),
    inference(rewrite,[status(thm)],]) ).

tff(20,plain,
    ( neq(sk2,nil)
  <=> neq(sk4,nil) ),
    inference(rewrite,[status(thm)],]) ).

tff(21,plain,
    ( neq(sk2,nil)
  <=> neq(sk2,nil) ),
    inference(rewrite,[status(thm)],]) ).

tff(22,plain,
    ( ( neq(sk2,nil)
      | neq(sk2,nil) )
  <=> neq(sk2,nil) ),
    inference(rewrite,[status(thm)],]) ).

tff(23,axiom,
    ( neq(sk2,nil)
    | neq(sk2,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_7) ).

tff(24,plain,
    neq(sk2,nil),
    inference(modus_ponens,[status(thm)],[23,22]) ).

tff(25,plain,
    neq(sk2,nil),
    inference(modus_ponens,[status(thm)],[24,21]) ).

tff(26,plain,
    neq(sk4,nil),
    inference(modus_ponens,[status(thm)],[25,20]) ).

tff(27,plain,
    ( neq(sk4,nil)
  <=> $true ),
    inference(iff_true,[status(thm)],[26]) ).

tff(28,plain,
    ( ~ neq(sk4,nil)
  <=> ~ $true ),
    inference(monotonicity,[status(thm)],[27]) ).

tff(29,plain,
    ( ~ neq(sk4,nil)
  <=> $false ),
    inference(transitivity,[status(thm)],[28,19]) ).

tff(30,plain,
    ( ( ~ neq(sk4,nil)
      | ( app(cons(sk5,nil),sk6) = sk4 ) )
  <=> ( $false
      | ( app(sk3,sk6) = sk4 ) ) ),
    inference(monotonicity,[status(thm)],[29,18]) ).

tff(31,plain,
    ( ( ~ neq(sk4,nil)
      | ( app(cons(sk5,nil),sk6) = sk4 ) )
  <=> ( app(sk3,sk6) = sk4 ) ),
    inference(transitivity,[status(thm)],[30,17]) ).

tff(32,plain,
    ( ( ~ neq(sk4,nil)
      | ( app(cons(sk5,nil),sk6) = sk4 ) )
  <=> ( ~ neq(sk4,nil)
      | ( app(cons(sk5,nil),sk6) = sk4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(33,plain,
    ( ( ( app(cons(sk5,nil),sk6) = sk4 )
      | ~ neq(sk4,nil) )
  <=> ( ~ neq(sk4,nil)
      | ( app(cons(sk5,nil),sk6) = sk4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(34,axiom,
    ( ( app(cons(sk5,nil),sk6) = sk4 )
    | ~ neq(sk4,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_18) ).

tff(35,plain,
    ( ~ neq(sk4,nil)
    | ( app(cons(sk5,nil),sk6) = sk4 ) ),
    inference(modus_ponens,[status(thm)],[34,33]) ).

tff(36,plain,
    ( ~ neq(sk4,nil)
    | ( app(cons(sk5,nil),sk6) = sk4 ) ),
    inference(modus_ponens,[status(thm)],[35,32]) ).

tff(37,plain,
    app(sk3,sk6) = sk4,
    inference(modus_ponens,[status(thm)],[36,31]) ).

tff(38,plain,
    ( ( $false
      | ( cons(sk5,nil) = sk3 ) )
  <=> ( cons(sk5,nil) = sk3 ) ),
    inference(rewrite,[status(thm)],]) ).

tff(39,plain,
    ( ( ~ neq(sk4,nil)
      | ( cons(sk5,nil) = sk3 ) )
  <=> ( $false
      | ( cons(sk5,nil) = sk3 ) ) ),
    inference(monotonicity,[status(thm)],[29]) ).

tff(40,plain,
    ( ( ~ neq(sk4,nil)
      | ( cons(sk5,nil) = sk3 ) )
  <=> ( cons(sk5,nil) = sk3 ) ),
    inference(transitivity,[status(thm)],[39,38]) ).

tff(41,plain,
    ( ( ~ neq(sk4,nil)
      | ( cons(sk5,nil) = sk3 ) )
  <=> ( ~ neq(sk4,nil)
      | ( cons(sk5,nil) = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(42,plain,
    ( ( ( cons(sk5,nil) = sk3 )
      | ~ neq(sk4,nil) )
  <=> ( ~ neq(sk4,nil)
      | ( cons(sk5,nil) = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(43,axiom,
    ( ( cons(sk5,nil) = sk3 )
    | ~ neq(sk4,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_17) ).

tff(44,plain,
    ( ~ neq(sk4,nil)
    | ( cons(sk5,nil) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[43,42]) ).

tff(45,plain,
    ( ~ neq(sk4,nil)
    | ( cons(sk5,nil) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[44,41]) ).

tff(46,plain,
    cons(sk5,nil) = sk3,
    inference(modus_ponens,[status(thm)],[45,40]) ).

tff(47,plain,
    app(cons(sk5,nil),sk6) = app(sk3,sk6),
    inference(monotonicity,[status(thm)],[46]) ).

tff(48,plain,
    ( ( ssList(sk6)
      | $false )
  <=> ssList(sk6) ),
    inference(rewrite,[status(thm)],]) ).

tff(49,plain,
    ( ( ssList(sk6)
      | ~ neq(sk4,nil) )
  <=> ( ssList(sk6)
      | $false ) ),
    inference(monotonicity,[status(thm)],[29]) ).

tff(50,plain,
    ( ( ssList(sk6)
      | ~ neq(sk4,nil) )
  <=> ssList(sk6) ),
    inference(transitivity,[status(thm)],[49,48]) ).

tff(51,plain,
    ( ( ssList(sk6)
      | ~ neq(sk4,nil) )
  <=> ( ssList(sk6)
      | ~ neq(sk4,nil) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(52,axiom,
    ( ssList(sk6)
    | ~ neq(sk4,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_16) ).

tff(53,plain,
    ( ssList(sk6)
    | ~ neq(sk4,nil) ),
    inference(modus_ponens,[status(thm)],[52,51]) ).

tff(54,plain,
    ssList(sk6),
    inference(modus_ponens,[status(thm)],[53,50]) ).

tff(55,plain,
    ( ( ssItem(sk5)
      | $false )
  <=> ssItem(sk5) ),
    inference(rewrite,[status(thm)],]) ).

tff(56,plain,
    ( ( ssItem(sk5)
      | ~ neq(sk4,nil) )
  <=> ( ssItem(sk5)
      | $false ) ),
    inference(monotonicity,[status(thm)],[29]) ).

tff(57,plain,
    ( ( ssItem(sk5)
      | ~ neq(sk4,nil) )
  <=> ssItem(sk5) ),
    inference(transitivity,[status(thm)],[56,55]) ).

tff(58,plain,
    ( ( ssItem(sk5)
      | ~ neq(sk4,nil) )
  <=> ( ssItem(sk5)
      | ~ neq(sk4,nil) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(59,axiom,
    ( ssItem(sk5)
    | ~ neq(sk4,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_15) ).

tff(60,plain,
    ( ssItem(sk5)
    | ~ neq(sk4,nil) ),
    inference(modus_ponens,[status(thm)],[59,58]) ).

tff(61,plain,
    ssItem(sk5),
    inference(modus_ponens,[status(thm)],[60,57]) ).

tff(62,plain,
    ^ [V: $i,U: $i] :
      refl(
        ( ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) ) )),
    inference(bind,[status(th)],]) ).

tff(63,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( app(cons(U,nil),V) = cons(U,V) ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( app(cons(U,nil),V) = cons(U,V) ) ) ),
    inference(quant_intro,[status(thm)],[62]) ).

tff(64,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( app(cons(U,nil),V) = cons(U,V) ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( app(cons(U,nil),V) = cons(U,V) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(65,plain,
    ^ [V: $i,U: $i] :
      rewrite(
        ( ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) )
      <=> ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) ) )),
    inference(bind,[status(th)],]) ).

tff(66,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( app(cons(U,nil),V) = cons(U,V) ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssItem(U)
        | ~ ssList(V)
        | ( app(cons(U,nil),V) = cons(U,V) ) ) ),
    inference(quant_intro,[status(thm)],[65]) ).

tff(67,axiom,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause120) ).

tff(68,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(modus_ponens,[status(thm)],[67,66]) ).

tff(69,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(modus_ponens,[status(thm)],[68,64]) ).

tff(70,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(skolemize,[status(sab)],[69]) ).

tff(71,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(modus_ponens,[status(thm)],[70,63]) ).

tff(72,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( app(cons(U,nil),V) = cons(U,V) ) )
      | ~ ssItem(sk5)
      | ~ ssList(sk6)
      | ( app(cons(sk5,nil),sk6) = cons(sk5,sk6) ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( app(cons(U,nil),V) = cons(U,V) ) )
      | ~ ssItem(sk5)
      | ~ ssList(sk6)
      | ( app(cons(sk5,nil),sk6) = cons(sk5,sk6) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(73,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) )
    | ~ ssItem(sk5)
    | ~ ssList(sk6)
    | ( app(cons(sk5,nil),sk6) = cons(sk5,sk6) ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(74,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) )
    | ~ ssItem(sk5)
    | ~ ssList(sk6)
    | ( app(cons(sk5,nil),sk6) = cons(sk5,sk6) ) ),
    inference(modus_ponens,[status(thm)],[73,72]) ).

tff(75,plain,
    app(cons(sk5,nil),sk6) = cons(sk5,sk6),
    inference(unit_resolution,[status(thm)],[74,71,61,54]) ).

tff(76,plain,
    cons(sk5,sk6) = app(cons(sk5,nil),sk6),
    inference(symmetry,[status(thm)],[75]) ).

tff(77,plain,
    cons(sk5,sk6) = sk4,
    inference(transitivity,[status(thm)],[76,47,37]) ).

tff(78,plain,
    app(nil,cons(sk5,sk6)) = app(nil,sk4),
    inference(monotonicity,[status(thm)],[77]) ).

tff(79,plain,
    app(nil,cons(sk5,sk6)) = sk4,
    inference(transitivity,[status(thm)],[78,16]) ).

tff(80,plain,
    ^ [A: $i] :
      refl(
        ( ( ~ ssItem(A)
          | ( cons(A,nil) != sk3 )
          | ~ memberP(sk4,A) )
      <=> ( ~ ssItem(A)
          | ( cons(A,nil) != sk3 )
          | ~ memberP(sk4,A) ) )),
    inference(bind,[status(th)],]) ).

tff(81,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ( cons(A,nil) != sk3 )
        | ~ memberP(sk4,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ( cons(A,nil) != sk3 )
        | ~ memberP(sk4,A) ) ),
    inference(quant_intro,[status(thm)],[80]) ).

tff(82,plain,
    ^ [A: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              iff_true(
                mp(
                  mp(
                    mp(
                      asserted(
                        ( neq(sk2,nil)
                        | neq(sk2,nil) )),
                      rewrite(
                        ( ( neq(sk2,nil)
                          | neq(sk2,nil) )
                      <=> neq(sk2,nil) )),
                      neq(sk2,nil)),
                    rewrite(
                      ( neq(sk2,nil)
                    <=> neq(sk2,nil) )),
                    neq(sk2,nil)),
                  rewrite(
                    ( neq(sk2,nil)
                  <=> neq(sk4,nil) )),
                  neq(sk4,nil)),
                ( neq(sk4,nil)
              <=> $true )),
              ( ~ neq(sk4,nil)
            <=> ~ $true )),
            rewrite(
              ( ~ $true
            <=> $false )),
            ( ~ neq(sk4,nil)
          <=> $false )),
          ( ( ~ ssItem(A)
            | ~ neq(sk4,nil)
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) )
        <=> ( ~ ssItem(A)
            | $false
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) ) )),
        rewrite(
          ( ( ~ ssItem(A)
            | $false
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) )
        <=> ( ~ ssItem(A)
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) ) )),
        ( ( ~ ssItem(A)
          | ~ neq(sk4,nil)
          | ( cons(A,nil) != sk3 )
          | ~ memberP(sk4,A) )
      <=> ( ~ ssItem(A)
          | ( cons(A,nil) != sk3 )
          | ~ memberP(sk4,A) ) )),
    inference(bind,[status(th)],]) ).

tff(83,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ~ neq(sk4,nil)
        | ( cons(A,nil) != sk3 )
        | ~ memberP(sk4,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ( cons(A,nil) != sk3 )
        | ~ memberP(sk4,A) ) ),
    inference(quant_intro,[status(thm)],[82]) ).

tff(84,plain,
    ^ [A: $i] :
      trans(
        monotonicity(
          rewrite(
            ( ( cons(A,nil) != sk1 )
          <=> ( cons(A,nil) != sk3 ) )),
          rewrite(
            ( ~ memberP(sk2,A)
          <=> ~ memberP(sk4,A) )),
          ( ( ~ ssItem(A)
            | ~ neq(sk4,nil)
            | ( cons(A,nil) != sk1 )
            | ~ memberP(sk2,A) )
        <=> ( ~ ssItem(A)
            | ~ neq(sk4,nil)
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) ) )),
        rewrite(
          ( ( ~ ssItem(A)
            | ~ neq(sk4,nil)
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) )
        <=> ( ~ ssItem(A)
            | ~ neq(sk4,nil)
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) ) )),
        ( ( ~ ssItem(A)
          | ~ neq(sk4,nil)
          | ( cons(A,nil) != sk1 )
          | ~ memberP(sk2,A) )
      <=> ( ~ ssItem(A)
          | ~ neq(sk4,nil)
          | ( cons(A,nil) != sk3 )
          | ~ memberP(sk4,A) ) )),
    inference(bind,[status(th)],]) ).

tff(85,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ~ neq(sk4,nil)
        | ( cons(A,nil) != sk1 )
        | ~ memberP(sk2,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ~ neq(sk4,nil)
        | ( cons(A,nil) != sk3 )
        | ~ memberP(sk4,A) ) ),
    inference(quant_intro,[status(thm)],[84]) ).

tff(86,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ~ neq(sk4,nil)
        | ( cons(A,nil) != sk1 )
        | ~ memberP(sk2,A) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ~ neq(sk4,nil)
        | ( cons(A,nil) != sk1 )
        | ~ memberP(sk2,A) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(87,plain,
    ^ [A: $i] :
      trans(
        monotonicity(
          rewrite(
            ( ( ~ ssItem(A)
              | ( cons(A,nil) != sk1 )
              | ~ memberP(sk2,A) )
          <=> ( ~ ssItem(A)
              | ( cons(A,nil) != sk1 )
              | ~ memberP(sk2,A) ) )),
          ( ( ~ ssItem(A)
            | ( cons(A,nil) != sk1 )
            | ~ memberP(sk2,A)
            | ~ neq(sk4,nil) )
        <=> ( ~ ssItem(A)
            | ( cons(A,nil) != sk1 )
            | ~ memberP(sk2,A)
            | ~ neq(sk4,nil) ) )),
        rewrite(
          ( ( ~ ssItem(A)
            | ( cons(A,nil) != sk1 )
            | ~ memberP(sk2,A)
            | ~ neq(sk4,nil) )
        <=> ( ~ ssItem(A)
            | ~ neq(sk4,nil)
            | ( cons(A,nil) != sk1 )
            | ~ memberP(sk2,A) ) )),
        ( ( ~ ssItem(A)
          | ( cons(A,nil) != sk1 )
          | ~ memberP(sk2,A)
          | ~ neq(sk4,nil) )
      <=> ( ~ ssItem(A)
          | ~ neq(sk4,nil)
          | ( cons(A,nil) != sk1 )
          | ~ memberP(sk2,A) ) )),
    inference(bind,[status(th)],]) ).

tff(88,plain,
    ( ! [A: $i] :
        ( ~ ssItem(A)
        | ( cons(A,nil) != sk1 )
        | ~ memberP(sk2,A)
        | ~ neq(sk4,nil) )
  <=> ! [A: $i] :
        ( ~ ssItem(A)
        | ~ neq(sk4,nil)
        | ( cons(A,nil) != sk1 )
        | ~ memberP(sk2,A) ) ),
    inference(quant_intro,[status(thm)],[87]) ).

tff(89,axiom,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ( cons(A,nil) != sk1 )
      | ~ memberP(sk2,A)
      | ~ neq(sk4,nil) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_14) ).

tff(90,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ neq(sk4,nil)
      | ( cons(A,nil) != sk1 )
      | ~ memberP(sk2,A) ),
    inference(modus_ponens,[status(thm)],[89,88]) ).

tff(91,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ neq(sk4,nil)
      | ( cons(A,nil) != sk1 )
      | ~ memberP(sk2,A) ),
    inference(modus_ponens,[status(thm)],[90,86]) ).

tff(92,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ~ neq(sk4,nil)
      | ( cons(A,nil) != sk3 )
      | ~ memberP(sk4,A) ),
    inference(modus_ponens,[status(thm)],[91,85]) ).

tff(93,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ( cons(A,nil) != sk3 )
      | ~ memberP(sk4,A) ),
    inference(modus_ponens,[status(thm)],[92,83]) ).

tff(94,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ( cons(A,nil) != sk3 )
      | ~ memberP(sk4,A) ),
    inference(skolemize,[status(sab)],[93]) ).

tff(95,plain,
    ! [A: $i] :
      ( ~ ssItem(A)
      | ( cons(A,nil) != sk3 )
      | ~ memberP(sk4,A) ),
    inference(modus_ponens,[status(thm)],[94,81]) ).

tff(96,plain,
    ( ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) )
      | ~ ssItem(sk5)
      | ( cons(sk5,nil) != sk3 )
      | ~ memberP(sk4,sk5) )
  <=> ( ~ ! [A: $i] :
            ( ~ ssItem(A)
            | ( cons(A,nil) != sk3 )
            | ~ memberP(sk4,A) )
      | ~ ssItem(sk5)
      | ( cons(sk5,nil) != sk3 )
      | ~ memberP(sk4,sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(97,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | ( cons(A,nil) != sk3 )
          | ~ memberP(sk4,A) )
    | ~ ssItem(sk5)
    | ( cons(sk5,nil) != sk3 )
    | ~ memberP(sk4,sk5) ),
    inference(quant_inst,[status(thm)],]) ).

tff(98,plain,
    ( ~ ! [A: $i] :
          ( ~ ssItem(A)
          | ( cons(A,nil) != sk3 )
          | ~ memberP(sk4,A) )
    | ~ ssItem(sk5)
    | ( cons(sk5,nil) != sk3 )
    | ~ memberP(sk4,sk5) ),
    inference(modus_ponens,[status(thm)],[97,96]) ).

tff(99,plain,
    ~ memberP(sk4,sk5),
    inference(unit_resolution,[status(thm)],[98,95,61,46]) ).

tff(100,plain,
    ^ [W: $i,V: $i,U: $i,X: $i] :
      refl(
        ( ( ~ ssList(X)
          | ~ ssList(U)
          | ~ ssItem(V)
          | memberP(X,V)
          | ~ ssList(W)
          | ( app(U,cons(V,W)) != X ) )
      <=> ( ~ ssList(X)
          | ~ ssList(U)
          | ~ ssItem(V)
          | memberP(X,V)
          | ~ ssList(W)
          | ( app(U,cons(V,W)) != X ) ) )),
    inference(bind,[status(th)],]) ).

tff(101,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssList(U)
        | ~ ssItem(V)
        | memberP(X,V)
        | ~ ssList(W)
        | ( app(U,cons(V,W)) != X ) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssList(U)
        | ~ ssItem(V)
        | memberP(X,V)
        | ~ ssList(W)
        | ( app(U,cons(V,W)) != X ) ) ),
    inference(quant_intro,[status(thm)],[100]) ).

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

tff(103,plain,
    ^ [W: $i,V: $i,U: $i,X: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              trans(
                monotonicity(
                  trans(
                    monotonicity(
                      rewrite(
                        ( ( ( app(U,cons(V,W)) != X )
                          | ~ ssList(W) )
                      <=> ( ~ ssList(W)
                          | ( app(U,cons(V,W)) != X ) ) )),
                      ( ( ( app(U,cons(V,W)) != X )
                        | ~ ssList(W)
                        | ~ ssList(U) )
                    <=> ( ~ ssList(W)
                        | ( app(U,cons(V,W)) != X )
                        | ~ ssList(U) ) )),
                    rewrite(
                      ( ( ~ ssList(W)
                        | ( app(U,cons(V,W)) != X )
                        | ~ ssList(U) )
                    <=> ( ~ ssList(U)
                        | ~ ssList(W)
                        | ( app(U,cons(V,W)) != X ) ) )),
                    ( ( ( app(U,cons(V,W)) != X )
                      | ~ ssList(W)
                      | ~ ssList(U) )
                  <=> ( ~ ssList(U)
                      | ~ ssList(W)
                      | ( app(U,cons(V,W)) != X ) ) )),
                  ( ( ( app(U,cons(V,W)) != X )
                    | ~ ssList(W)
                    | ~ ssList(U)
                    | ~ ssItem(V) )
                <=> ( ~ ssList(U)
                    | ~ ssList(W)
                    | ( app(U,cons(V,W)) != X )
                    | ~ ssItem(V) ) )),
                rewrite(
                  ( ( ~ ssList(U)
                    | ~ ssList(W)
                    | ( app(U,cons(V,W)) != X )
                    | ~ ssItem(V) )
                <=> ( ~ ssList(U)
                    | ~ ssItem(V)
                    | ~ ssList(W)
                    | ( app(U,cons(V,W)) != X ) ) )),
                ( ( ( app(U,cons(V,W)) != X )
                  | ~ ssList(W)
                  | ~ ssList(U)
                  | ~ ssItem(V) )
              <=> ( ~ ssList(U)
                  | ~ ssItem(V)
                  | ~ ssList(W)
                  | ( app(U,cons(V,W)) != X ) ) )),
              ( ( ( app(U,cons(V,W)) != X )
                | ~ ssList(W)
                | ~ ssList(U)
                | ~ ssItem(V)
                | ~ ssList(X) )
            <=> ( ~ ssList(U)
                | ~ ssItem(V)
                | ~ ssList(W)
                | ( app(U,cons(V,W)) != X )
                | ~ ssList(X) ) )),
            rewrite(
              ( ( ~ ssList(U)
                | ~ ssItem(V)
                | ~ ssList(W)
                | ( app(U,cons(V,W)) != X )
                | ~ ssList(X) )
            <=> ( ~ ssList(X)
                | ~ ssList(U)
                | ~ ssItem(V)
                | ~ ssList(W)
                | ( app(U,cons(V,W)) != X ) ) )),
            ( ( ( app(U,cons(V,W)) != X )
              | ~ ssList(W)
              | ~ ssList(U)
              | ~ ssItem(V)
              | ~ ssList(X) )
          <=> ( ~ ssList(X)
              | ~ ssList(U)
              | ~ ssItem(V)
              | ~ ssList(W)
              | ( app(U,cons(V,W)) != X ) ) )),
          ( ( ( app(U,cons(V,W)) != X )
            | ~ ssList(W)
            | ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(X)
            | memberP(X,V) )
        <=> ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X )
            | memberP(X,V) ) )),
        rewrite(
          ( ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X )
            | memberP(X,V) )
        <=> ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(X,V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X ) ) )),
        ( ( ( app(U,cons(V,W)) != X )
          | ~ ssList(W)
          | ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(X)
          | memberP(X,V) )
      <=> ( ~ ssList(X)
          | ~ ssList(U)
          | ~ ssItem(V)
          | memberP(X,V)
          | ~ ssList(W)
          | ( app(U,cons(V,W)) != X ) ) )),
    inference(bind,[status(th)],]) ).

tff(104,plain,
    ( ! [W: $i,V: $i,U: $i,X: $i] :
        ( ( app(U,cons(V,W)) != X )
        | ~ ssList(W)
        | ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(X)
        | memberP(X,V) )
  <=> ! [W: $i,V: $i,U: $i,X: $i] :
        ( ~ ssList(X)
        | ~ ssList(U)
        | ~ ssItem(V)
        | memberP(X,V)
        | ~ ssList(W)
        | ( app(U,cons(V,W)) != X ) ) ),
    inference(quant_intro,[status(thm)],[103]) ).

tff(105,axiom,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ( app(U,cons(V,W)) != X )
      | ~ ssList(W)
      | ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(X)
      | memberP(X,V) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause175) ).

tff(106,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssList(U)
      | ~ ssItem(V)
      | memberP(X,V)
      | ~ ssList(W)
      | ( app(U,cons(V,W)) != X ) ),
    inference(modus_ponens,[status(thm)],[105,104]) ).

tff(107,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssList(U)
      | ~ ssItem(V)
      | memberP(X,V)
      | ~ ssList(W)
      | ( app(U,cons(V,W)) != X ) ),
    inference(modus_ponens,[status(thm)],[106,102]) ).

tff(108,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssList(U)
      | ~ ssItem(V)
      | memberP(X,V)
      | ~ ssList(W)
      | ( app(U,cons(V,W)) != X ) ),
    inference(skolemize,[status(sab)],[107]) ).

tff(109,plain,
    ! [W: $i,V: $i,U: $i,X: $i] :
      ( ~ ssList(X)
      | ~ ssList(U)
      | ~ ssItem(V)
      | memberP(X,V)
      | ~ ssList(W)
      | ( app(U,cons(V,W)) != X ) ),
    inference(modus_ponens,[status(thm)],[108,101]) ).

tff(110,plain,
    ( ssList(nil)
  <=> ssList(nil) ),
    inference(rewrite,[status(thm)],]) ).

tff(111,axiom,
    ssList(nil),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause8) ).

tff(112,plain,
    ssList(nil),
    inference(modus_ponens,[status(thm)],[111,110]) ).

tff(113,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(X,V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X ) )
      | ~ ssItem(sk5)
      | ~ ssList(sk6)
      | ~ ssList(nil)
      | ~ ssList(sk4)
      | memberP(sk4,sk5)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(X,V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X ) )
      | ~ ssItem(sk5)
      | ~ ssList(sk6)
      | ~ ssList(nil)
      | ~ ssList(sk4)
      | memberP(sk4,sk5)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(114,plain,
    ( ( ~ ssList(sk4)
      | ~ ssList(nil)
      | ~ ssItem(sk5)
      | memberP(sk4,sk5)
      | ~ ssList(sk6)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) )
  <=> ( ~ ssItem(sk5)
      | ~ ssList(sk6)
      | ~ ssList(nil)
      | ~ ssList(sk4)
      | memberP(sk4,sk5)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(115,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(X,V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X ) )
      | ~ ssList(sk4)
      | ~ ssList(nil)
      | ~ ssItem(sk5)
      | memberP(sk4,sk5)
      | ~ ssList(sk6)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(X,V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X ) )
      | ~ ssItem(sk5)
      | ~ ssList(sk6)
      | ~ ssList(nil)
      | ~ ssList(sk4)
      | memberP(sk4,sk5)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) ) ),
    inference(monotonicity,[status(thm)],[114]) ).

tff(116,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(X,V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X ) )
      | ~ ssList(sk4)
      | ~ ssList(nil)
      | ~ ssItem(sk5)
      | memberP(sk4,sk5)
      | ~ ssList(sk6)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) )
  <=> ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
            ( ~ ssList(X)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(X,V)
            | ~ ssList(W)
            | ( app(U,cons(V,W)) != X ) )
      | ~ ssItem(sk5)
      | ~ ssList(sk6)
      | ~ ssList(nil)
      | ~ ssList(sk4)
      | memberP(sk4,sk5)
      | ( app(nil,cons(sk5,sk6)) != sk4 ) ) ),
    inference(transitivity,[status(thm)],[115,113]) ).

tff(117,plain,
    ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
          ( ~ ssList(X)
          | ~ ssList(U)
          | ~ ssItem(V)
          | memberP(X,V)
          | ~ ssList(W)
          | ( app(U,cons(V,W)) != X ) )
    | ~ ssList(sk4)
    | ~ ssList(nil)
    | ~ ssItem(sk5)
    | memberP(sk4,sk5)
    | ~ ssList(sk6)
    | ( app(nil,cons(sk5,sk6)) != sk4 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(118,plain,
    ( ~ ! [W: $i,V: $i,U: $i,X: $i] :
          ( ~ ssList(X)
          | ~ ssList(U)
          | ~ ssItem(V)
          | memberP(X,V)
          | ~ ssList(W)
          | ( app(U,cons(V,W)) != X ) )
    | ~ ssItem(sk5)
    | ~ ssList(sk6)
    | ~ ssList(nil)
    | ~ ssList(sk4)
    | memberP(sk4,sk5)
    | ( app(nil,cons(sk5,sk6)) != sk4 ) ),
    inference(modus_ponens,[status(thm)],[117,116]) ).

tff(119,plain,
    app(nil,cons(sk5,sk6)) != sk4,
    inference(unit_resolution,[status(thm)],[118,112,109,5,61,54,99]) ).

tff(120,plain,
    $false,
    inference(unit_resolution,[status(thm)],[119,79]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.11  % Problem  : SWC380-1 : TPTP v8.1.0. Released v2.4.0.
% 0.10/0.12  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.12/0.33  % Computer : n013.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 : Sun Sep  4 00:27:02 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.33  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.12/0.33  Usage: tptp [options] [-file:]file
% 0.12/0.33    -h, -?       prints this message.
% 0.12/0.33    -smt2        print SMT-LIB2 benchmark.
% 0.12/0.33    -m, -model   generate model.
% 0.12/0.33    -p, -proof   generate proof.
% 0.12/0.33    -c, -core    generate unsat core of named formulas.
% 0.12/0.33    -st, -statistics display statistics.
% 0.12/0.33    -t:timeout   set timeout (in second).
% 0.12/0.33    -smt2status  display status in smt2 format instead of SZS.
% 0.12/0.33    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.12/0.33    -<param>:<value> configuration parameter and value.
% 0.12/0.33    -o:<output-file> file to place output in.
% 0.20/0.46  % SZS status Unsatisfiable
% 0.20/0.46  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------