TSTP Solution File: SWC409-1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SWC409-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n026.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 11:57:47 EDT 2022

% Result   : Unsatisfiable 42.09s 26.93s
% Output   : Proof 42.26s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   21
%            Number of leaves      :  116
% Syntax   : Number of formulae    :  263 (  65 unt;  15 typ;   0 def)
%            Number of atoms       : 1965 ( 295 equ)
%            Maximal formula atoms :   24 (   7 avg)
%            Number of connectives : 2993 (1404   ~;1422   |;   0   &)
%                                         ( 167 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   6 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of FOOLs       :  128 ( 128 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   14 (   9   >;   5   *;   0   +;   0  <<)
%            Number of predicates  :    9 (   7 usr;   1 prp; 0-3 aty)
%            Number of functors    :   12 (  12 usr;   6 con; 0-2 aty)
%            Number of variables   :  533 ( 479   !;   0   ?; 533   :)

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

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

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

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

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

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

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

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

tff(skaf43_type,type,
    skaf43: ( $i * $i ) > $i ).

tff(skaf42_type,type,
    skaf42: ( $i * $i ) > $i ).

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

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

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

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

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

tff(1,plain,
    ( ( sk4 = nil )
  <=> ( nil = sk4 ) ),
    inference(commutativity,[status(thm)],]) ).

tff(2,plain,
    ( memberP(sk2,sk5)
  <=> memberP(sk4,sk5) ),
    inference(rewrite,[status(thm)],]) ).

tff(3,plain,
    ( memberP(sk2,sk5)
  <=> memberP(sk2,sk5) ),
    inference(rewrite,[status(thm)],]) ).

tff(4,axiom,
    memberP(sk2,sk5),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_9) ).

tff(5,plain,
    memberP(sk2,sk5),
    inference(modus_ponens,[status(thm)],[4,3]) ).

tff(6,plain,
    memberP(sk4,sk5),
    inference(modus_ponens,[status(thm)],[5,2]) ).

tff(7,plain,
    ( ssItem(sk5)
  <=> ssItem(sk5) ),
    inference(rewrite,[status(thm)],]) ).

tff(8,axiom,
    ssItem(sk5),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_8) ).

tff(9,plain,
    ssItem(sk5),
    inference(modus_ponens,[status(thm)],[8,7]) ).

tff(10,plain,
    ( ssList(sk2)
  <=> ssList(sk4) ),
    inference(rewrite,[status(thm)],]) ).

tff(11,plain,
    ( ssList(sk2)
  <=> ssList(sk2) ),
    inference(rewrite,[status(thm)],]) ).

tff(12,axiom,
    ssList(sk2),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_2) ).

tff(13,plain,
    ssList(sk2),
    inference(modus_ponens,[status(thm)],[12,11]) ).

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

tff(15,plain,
    ^ [V: $i,U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ memberP(U,V)
          | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
      <=> ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ memberP(U,V)
          | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(16,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ memberP(U,V)
        | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ memberP(U,V)
        | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ) ),
    inference(quant_intro,[status(thm)],[15]) ).

tff(17,plain,
    ( ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ memberP(U,V)
        | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ memberP(U,V)
        | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(18,plain,
    ^ [V: $i,U: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              rewrite(
                ( ( ~ memberP(U,V)
                  | ~ ssItem(V) )
              <=> ( ~ ssItem(V)
                  | ~ memberP(U,V) ) )),
              ( ( ~ memberP(U,V)
                | ~ ssItem(V)
                | ~ ssList(U) )
            <=> ( ~ ssItem(V)
                | ~ memberP(U,V)
                | ~ ssList(U) ) )),
            rewrite(
              ( ( ~ ssItem(V)
                | ~ memberP(U,V)
                | ~ ssList(U) )
            <=> ( ~ ssList(U)
                | ~ ssItem(V)
                | ~ memberP(U,V) ) )),
            ( ( ~ memberP(U,V)
              | ~ ssItem(V)
              | ~ ssList(U) )
          <=> ( ~ ssList(U)
              | ~ ssItem(V)
              | ~ memberP(U,V) ) )),
          ( ( ~ memberP(U,V)
            | ~ ssItem(V)
            | ~ ssList(U)
            | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
        <=> ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ memberP(U,V)
            | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ) )),
        rewrite(
          ( ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ memberP(U,V)
            | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
        <=> ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ memberP(U,V)
            | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ) )),
        ( ( ~ memberP(U,V)
          | ~ ssItem(V)
          | ~ ssList(U)
          | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
      <=> ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ memberP(U,V)
          | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(19,plain,
    ( ! [V: $i,U: $i] :
        ( ~ memberP(U,V)
        | ~ ssItem(V)
        | ~ ssList(U)
        | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
  <=> ! [V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ memberP(U,V)
        | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ) ),
    inference(quant_intro,[status(thm)],[18]) ).

tff(20,axiom,
    ! [V: $i,U: $i] :
      ( ~ memberP(U,V)
      | ~ ssItem(V)
      | ~ ssList(U)
      | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause169) ).

tff(21,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ memberP(U,V)
      | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ),
    inference(modus_ponens,[status(thm)],[20,19]) ).

tff(22,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ memberP(U,V)
      | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ),
    inference(modus_ponens,[status(thm)],[21,17]) ).

tff(23,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ memberP(U,V)
      | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ),
    inference(skolemize,[status(sab)],[22]) ).

tff(24,plain,
    ! [V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ memberP(U,V)
      | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) ),
    inference(modus_ponens,[status(thm)],[23,16]) ).

tff(25,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ memberP(U,V)
            | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
      | ~ ssList(sk4)
      | ~ ssItem(sk5)
      | ~ memberP(sk4,sk5)
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) = sk4 ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ memberP(U,V)
            | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
      | ~ ssList(sk4)
      | ~ ssItem(sk5)
      | ~ memberP(sk4,sk5)
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) = sk4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(26,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ memberP(U,V)
          | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
    | ~ ssList(sk4)
    | ~ ssItem(sk5)
    | ~ memberP(sk4,sk5)
    | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) = sk4 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(27,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ memberP(U,V)
          | ( app(skaf42(U,V),cons(V,skaf43(V,U))) = U ) )
    | ~ ssList(sk4)
    | ~ ssItem(sk5)
    | ~ memberP(sk4,sk5)
    | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) = sk4 ) ),
    inference(modus_ponens,[status(thm)],[26,25]) ).

tff(28,plain,
    app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) = sk4,
    inference(unit_resolution,[status(thm)],[27,24,14,9,6]) ).

tff(29,plain,
    ( ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) = nil )
  <=> ( sk4 = nil ) ),
    inference(monotonicity,[status(thm)],[28]) ).

tff(30,plain,
    ( ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) = nil )
  <=> ( nil = sk4 ) ),
    inference(transitivity,[status(thm)],[29,1]) ).

tff(31,plain,
    ( ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil )
  <=> ( nil != sk4 ) ),
    inference(monotonicity,[status(thm)],[30]) ).

tff(32,plain,
    ^ [V: $i,U: $i] :
      refl(
        ( ssList(skaf42(U,V))
      <=> ssList(skaf42(U,V)) )),
    inference(bind,[status(th)],]) ).

tff(33,plain,
    ( ! [V: $i,U: $i] : ssList(skaf42(U,V))
  <=> ! [V: $i,U: $i] : ssList(skaf42(U,V)) ),
    inference(quant_intro,[status(thm)],[32]) ).

tff(34,plain,
    ( ! [V: $i,U: $i] : ssList(skaf42(U,V))
  <=> ! [V: $i,U: $i] : ssList(skaf42(U,V)) ),
    inference(rewrite,[status(thm)],]) ).

tff(35,axiom,
    ! [V: $i,U: $i] : ssList(skaf42(U,V)),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause53) ).

tff(36,plain,
    ! [V: $i,U: $i] : ssList(skaf42(U,V)),
    inference(modus_ponens,[status(thm)],[35,34]) ).

tff(37,plain,
    ! [V: $i,U: $i] : ssList(skaf42(U,V)),
    inference(skolemize,[status(sab)],[36]) ).

tff(38,plain,
    ! [V: $i,U: $i] : ssList(skaf42(U,V)),
    inference(modus_ponens,[status(thm)],[37,33]) ).

tff(39,plain,
    ( ~ ! [V: $i,U: $i] : ssList(skaf42(U,V))
    | ssList(skaf42(sk4,sk5)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(40,plain,
    ssList(skaf42(sk4,sk5)),
    inference(unit_resolution,[status(thm)],[39,38]) ).

tff(41,plain,
    ^ [V: $i,U: $i] :
      refl(
        ( ssList(skaf43(U,V))
      <=> ssList(skaf43(U,V)) )),
    inference(bind,[status(th)],]) ).

tff(42,plain,
    ( ! [V: $i,U: $i] : ssList(skaf43(U,V))
  <=> ! [V: $i,U: $i] : ssList(skaf43(U,V)) ),
    inference(quant_intro,[status(thm)],[41]) ).

tff(43,plain,
    ( ! [V: $i,U: $i] : ssList(skaf43(U,V))
  <=> ! [V: $i,U: $i] : ssList(skaf43(U,V)) ),
    inference(rewrite,[status(thm)],]) ).

tff(44,axiom,
    ! [V: $i,U: $i] : ssList(skaf43(U,V)),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause52) ).

tff(45,plain,
    ! [V: $i,U: $i] : ssList(skaf43(U,V)),
    inference(modus_ponens,[status(thm)],[44,43]) ).

tff(46,plain,
    ! [V: $i,U: $i] : ssList(skaf43(U,V)),
    inference(skolemize,[status(sab)],[45]) ).

tff(47,plain,
    ! [V: $i,U: $i] : ssList(skaf43(U,V)),
    inference(modus_ponens,[status(thm)],[46,42]) ).

tff(48,plain,
    ( ~ ! [V: $i,U: $i] : ssList(skaf43(U,V))
    | ssList(skaf43(sk5,sk4)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(49,plain,
    ssList(skaf43(sk5,sk4)),
    inference(unit_resolution,[status(thm)],[48,47]) ).

tff(50,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssItem(U)
          | ~ memberP(nil,U) )
      <=> ( ~ ssItem(U)
          | ~ memberP(nil,U) ) )),
    inference(bind,[status(th)],]) ).

tff(51,plain,
    ( ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) )
  <=> ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) ) ),
    inference(quant_intro,[status(thm)],[50]) ).

tff(52,plain,
    ( ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) )
  <=> ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(53,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ memberP(nil,U)
          | ~ ssItem(U) )
      <=> ( ~ ssItem(U)
          | ~ memberP(nil,U) ) )),
    inference(bind,[status(th)],]) ).

tff(54,plain,
    ( ! [U: $i] :
        ( ~ memberP(nil,U)
        | ~ ssItem(U) )
  <=> ! [U: $i] :
        ( ~ ssItem(U)
        | ~ memberP(nil,U) ) ),
    inference(quant_intro,[status(thm)],[53]) ).

tff(55,axiom,
    ! [U: $i] :
      ( ~ memberP(nil,U)
      | ~ ssItem(U) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause71) ).

tff(56,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(nil,U) ),
    inference(modus_ponens,[status(thm)],[55,54]) ).

tff(57,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(nil,U) ),
    inference(modus_ponens,[status(thm)],[56,52]) ).

tff(58,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(nil,U) ),
    inference(skolemize,[status(sab)],[57]) ).

tff(59,plain,
    ! [U: $i] :
      ( ~ ssItem(U)
      | ~ memberP(nil,U) ),
    inference(modus_ponens,[status(thm)],[58,51]) ).

tff(60,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssItem(U)
            | ~ memberP(nil,U) )
      | ~ ssItem(sk5)
      | ~ memberP(nil,sk5) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssItem(U)
            | ~ memberP(nil,U) )
      | ~ ssItem(sk5)
      | ~ memberP(nil,sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(61,plain,
    ( ~ ! [U: $i] :
          ( ~ ssItem(U)
          | ~ memberP(nil,U) )
    | ~ ssItem(sk5)
    | ~ memberP(nil,sk5) ),
    inference(quant_inst,[status(thm)],]) ).

tff(62,plain,
    ( ~ ! [U: $i] :
          ( ~ ssItem(U)
          | ~ memberP(nil,U) )
    | ~ ssItem(sk5)
    | ~ memberP(nil,sk5) ),
    inference(modus_ponens,[status(thm)],[61,60]) ).

tff(63,plain,
    ~ memberP(nil,sk5),
    inference(unit_resolution,[status(thm)],[62,59,9]) ).

tff(64,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(65,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)],[64]) ).

tff(66,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(67,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(68,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)],[67]) ).

tff(69,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(70,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)],[69,68]) ).

tff(71,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)],[70,66]) ).

tff(72,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)],[71]) ).

tff(73,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)],[72,65]) ).

tff(74,plain,
    ( ssList(nil)
  <=> ssList(nil) ),
    inference(rewrite,[status(thm)],]) ).

tff(75,axiom,
    ssList(nil),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause8) ).

tff(76,plain,
    ssList(nil),
    inference(modus_ponens,[status(thm)],[75,74]) ).

tff(77,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(nil)
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ~ ssList(skaf42(sk4,sk5))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) )
  <=> ( ~ ! [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(nil)
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ~ ssList(skaf42(sk4,sk5))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(78,plain,
    ( ( ~ ssList(nil)
      | ~ ssList(skaf42(sk4,sk5))
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) )
  <=> ( ~ ssList(nil)
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ~ ssList(skaf42(sk4,sk5))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(79,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(nil)
      | ~ ssList(skaf42(sk4,sk5))
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) )
  <=> ( ~ ! [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(nil)
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ~ ssList(skaf42(sk4,sk5))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) ) ),
    inference(monotonicity,[status(thm)],[78]) ).

tff(80,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(nil)
      | ~ ssList(skaf42(sk4,sk5))
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) )
  <=> ( ~ ! [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(nil)
      | ~ ssItem(sk5)
      | memberP(nil,sk5)
      | ~ ssList(skaf43(sk5,sk4))
      | ~ ssList(skaf42(sk4,sk5))
      | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) ) ),
    inference(transitivity,[status(thm)],[79,77]) ).

tff(81,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(nil)
    | ~ ssList(skaf42(sk4,sk5))
    | ~ ssItem(sk5)
    | memberP(nil,sk5)
    | ~ ssList(skaf43(sk5,sk4))
    | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(82,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(nil)
    | ~ ssItem(sk5)
    | memberP(nil,sk5)
    | ~ ssList(skaf43(sk5,sk4))
    | ~ ssList(skaf42(sk4,sk5))
    | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) ),
    inference(modus_ponens,[status(thm)],[81,80]) ).

tff(83,plain,
    ( ~ ssList(skaf43(sk5,sk4))
    | ~ ssList(skaf42(sk4,sk5))
    | ( app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil ) ),
    inference(unit_resolution,[status(thm)],[82,76,73,9,63]) ).

tff(84,plain,
    app(skaf42(sk4,sk5),cons(sk5,skaf43(sk5,sk4))) != nil,
    inference(unit_resolution,[status(thm)],[83,49,40]) ).

tff(85,plain,
    nil != sk4,
    inference(modus_ponens,[status(thm)],[84,31]) ).

tff(86,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ( nil = U )
          | ( cons(hd(U),tl(U)) = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ( cons(hd(U),tl(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(87,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(hd(U),tl(U)) = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(hd(U),tl(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[86]) ).

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

tff(89,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ( cons(hd(U),tl(U)) = U )
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ( cons(hd(U),tl(U)) = U ) ) )),
    inference(bind,[status(th)],]) ).

tff(90,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( cons(hd(U),tl(U)) = U )
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ( cons(hd(U),tl(U)) = U ) ) ),
    inference(quant_intro,[status(thm)],[89]) ).

tff(91,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( cons(hd(U),tl(U)) = U )
      | ( nil = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause104) ).

tff(92,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[91,90]) ).

tff(93,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[92,88]) ).

tff(94,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(skolemize,[status(sab)],[93]) ).

tff(95,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ( cons(hd(U),tl(U)) = U ) ),
    inference(modus_ponens,[status(thm)],[94,87]) ).

tff(96,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ( cons(hd(U),tl(U)) = U ) )
      | ~ ssList(sk4)
      | ( nil = sk4 )
      | ( cons(hd(sk4),tl(sk4)) = sk4 ) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ( cons(hd(U),tl(U)) = U ) )
      | ~ ssList(sk4)
      | ( nil = sk4 )
      | ( cons(hd(sk4),tl(sk4)) = sk4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(97,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ( cons(hd(U),tl(U)) = U ) )
    | ~ ssList(sk4)
    | ( nil = sk4 )
    | ( cons(hd(sk4),tl(sk4)) = sk4 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(98,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ( cons(hd(U),tl(U)) = U ) )
    | ~ ssList(sk4)
    | ( nil = sk4 )
    | ( cons(hd(sk4),tl(sk4)) = sk4 ) ),
    inference(modus_ponens,[status(thm)],[97,96]) ).

tff(99,plain,
    ( ( nil = sk4 )
    | ( cons(hd(sk4),tl(sk4)) = sk4 ) ),
    inference(unit_resolution,[status(thm)],[98,95,14]) ).

tff(100,plain,
    cons(hd(sk4),tl(sk4)) = sk4,
    inference(unit_resolution,[status(thm)],[99,85]) ).

tff(101,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ( nil = U )
          | ssList(tl(U)) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssList(tl(U)) ) )),
    inference(bind,[status(th)],]) ).

tff(102,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) ) ),
    inference(quant_intro,[status(thm)],[101]) ).

tff(103,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(104,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ssList(tl(U))
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssList(tl(U)) ) )),
    inference(bind,[status(th)],]) ).

tff(105,plain,
    ( ! [U: $i] :
        ( ~ ssList(U)
        | ssList(tl(U))
        | ( nil = U ) )
  <=> ! [U: $i] :
        ( ~ ssList(U)
        | ( nil = U )
        | ssList(tl(U)) ) ),
    inference(quant_intro,[status(thm)],[104]) ).

tff(106,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssList(tl(U))
      | ( nil = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause75) ).

tff(107,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssList(tl(U)) ),
    inference(modus_ponens,[status(thm)],[106,105]) ).

tff(108,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssList(tl(U)) ),
    inference(modus_ponens,[status(thm)],[107,103]) ).

tff(109,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssList(tl(U)) ),
    inference(skolemize,[status(sab)],[108]) ).

tff(110,plain,
    ! [U: $i] :
      ( ~ ssList(U)
      | ( nil = U )
      | ssList(tl(U)) ),
    inference(modus_ponens,[status(thm)],[109,102]) ).

tff(111,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssList(tl(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssList(tl(sk4)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssList(tl(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssList(tl(sk4)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(112,plain,
    ( ( ~ ssList(sk4)
      | ( nil = sk4 )
      | ssList(tl(sk4)) )
  <=> ( ( nil = sk4 )
      | ~ ssList(sk4)
      | ssList(tl(sk4)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(113,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssList(tl(U)) )
      | ~ ssList(sk4)
      | ( nil = sk4 )
      | ssList(tl(sk4)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssList(tl(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssList(tl(sk4)) ) ),
    inference(monotonicity,[status(thm)],[112]) ).

tff(114,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssList(tl(U)) )
      | ~ ssList(sk4)
      | ( nil = sk4 )
      | ssList(tl(sk4)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssList(tl(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssList(tl(sk4)) ) ),
    inference(transitivity,[status(thm)],[113,111]) ).

tff(115,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ssList(tl(U)) )
    | ~ ssList(sk4)
    | ( nil = sk4 )
    | ssList(tl(sk4)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(116,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ssList(tl(U)) )
    | ( nil = sk4 )
    | ~ ssList(sk4)
    | ssList(tl(sk4)) ),
    inference(modus_ponens,[status(thm)],[115,114]) ).

tff(117,plain,
    ssList(tl(sk4)),
    inference(unit_resolution,[status(thm)],[116,110,14,85]) ).

tff(118,plain,
    ^ [U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) ) )),
    inference(bind,[status(th)],]) ).

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

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

tff(121,plain,
    ^ [U: $i] :
      rewrite(
        ( ( ~ ssList(U)
          | ssItem(hd(U))
          | ( nil = U ) )
      <=> ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) ) )),
    inference(bind,[status(th)],]) ).

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

tff(123,axiom,
    ! [U: $i] :
      ( ~ ssList(U)
      | ssItem(hd(U))
      | ( nil = U ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause76) ).

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

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

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

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

tff(128,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssItem(hd(sk4)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssItem(hd(sk4)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(129,plain,
    ( ( ~ ssList(sk4)
      | ( nil = sk4 )
      | ssItem(hd(sk4)) )
  <=> ( ( nil = sk4 )
      | ~ ssList(sk4)
      | ssItem(hd(sk4)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(130,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ~ ssList(sk4)
      | ( nil = sk4 )
      | ssItem(hd(sk4)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssItem(hd(sk4)) ) ),
    inference(monotonicity,[status(thm)],[129]) ).

tff(131,plain,
    ( ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ~ ssList(sk4)
      | ( nil = sk4 )
      | ssItem(hd(sk4)) )
  <=> ( ~ ! [U: $i] :
            ( ~ ssList(U)
            | ( nil = U )
            | ssItem(hd(U)) )
      | ( nil = sk4 )
      | ~ ssList(sk4)
      | ssItem(hd(sk4)) ) ),
    inference(transitivity,[status(thm)],[130,128]) ).

tff(132,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) )
    | ~ ssList(sk4)
    | ( nil = sk4 )
    | ssItem(hd(sk4)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(133,plain,
    ( ~ ! [U: $i] :
          ( ~ ssList(U)
          | ( nil = U )
          | ssItem(hd(U)) )
    | ( nil = sk4 )
    | ~ ssList(sk4)
    | ssItem(hd(sk4)) ),
    inference(modus_ponens,[status(thm)],[132,131]) ).

tff(134,plain,
    ( ( nil = sk4 )
    | ssItem(hd(sk4)) ),
    inference(unit_resolution,[status(thm)],[133,127,14]) ).

tff(135,plain,
    ssItem(hd(sk4)),
    inference(unit_resolution,[status(thm)],[134,85]) ).

tff(136,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(137,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)],[136]) ).

tff(138,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(139,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(140,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)],[139]) ).

tff(141,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(142,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(modus_ponens,[status(thm)],[141,140]) ).

tff(143,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(modus_ponens,[status(thm)],[142,138]) ).

tff(144,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(skolemize,[status(sab)],[143]) ).

tff(145,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ( app(cons(U,nil),V) = cons(U,V) ) ),
    inference(modus_ponens,[status(thm)],[144,137]) ).

tff(146,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( app(cons(U,nil),V) = cons(U,V) ) )
      | ~ ssItem(hd(sk4))
      | ~ ssList(tl(sk4))
      | ( app(cons(hd(sk4),nil),tl(sk4)) = cons(hd(sk4),tl(sk4)) ) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ( app(cons(U,nil),V) = cons(U,V) ) )
      | ~ ssItem(hd(sk4))
      | ~ ssList(tl(sk4))
      | ( app(cons(hd(sk4),nil),tl(sk4)) = cons(hd(sk4),tl(sk4)) ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(147,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) )
    | ~ ssItem(hd(sk4))
    | ~ ssList(tl(sk4))
    | ( app(cons(hd(sk4),nil),tl(sk4)) = cons(hd(sk4),tl(sk4)) ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(148,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ( app(cons(U,nil),V) = cons(U,V) ) )
    | ~ ssItem(hd(sk4))
    | ~ ssList(tl(sk4))
    | ( app(cons(hd(sk4),nil),tl(sk4)) = cons(hd(sk4),tl(sk4)) ) ),
    inference(modus_ponens,[status(thm)],[147,146]) ).

tff(149,plain,
    ( ~ ssList(tl(sk4))
    | ( app(cons(hd(sk4),nil),tl(sk4)) = cons(hd(sk4),tl(sk4)) ) ),
    inference(unit_resolution,[status(thm)],[148,145,135]) ).

tff(150,plain,
    app(cons(hd(sk4),nil),tl(sk4)) = cons(hd(sk4),tl(sk4)),
    inference(unit_resolution,[status(thm)],[149,117]) ).

tff(151,plain,
    app(cons(hd(sk4),nil),tl(sk4)) = sk4,
    inference(transitivity,[status(thm)],[150,100]) ).

tff(152,plain,
    ( memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5)
  <=> memberP(sk4,sk5) ),
    inference(monotonicity,[status(thm)],[151]) ).

tff(153,plain,
    ( memberP(sk4,sk5)
  <=> memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ),
    inference(symmetry,[status(thm)],[152]) ).

tff(154,plain,
    memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5),
    inference(modus_ponens,[status(thm)],[6,153]) ).

tff(155,plain,
    ^ [B: $i,A: $i] :
      refl(
        ( ( ~ ssItem(A)
          | ~ ssList(B)
          | ( app(cons(A,nil),B) != sk4 )
          | ( app(B,cons(A,nil)) = sk3 ) )
      <=> ( ~ ssItem(A)
          | ~ ssList(B)
          | ( app(cons(A,nil),B) != sk4 )
          | ( app(B,cons(A,nil)) = sk3 ) ) )),
    inference(bind,[status(th)],]) ).

tff(156,plain,
    ( ! [B: $i,A: $i] :
        ( ~ ssItem(A)
        | ~ ssList(B)
        | ( app(cons(A,nil),B) != sk4 )
        | ( app(B,cons(A,nil)) = sk3 ) )
  <=> ! [B: $i,A: $i] :
        ( ~ ssItem(A)
        | ~ ssList(B)
        | ( app(cons(A,nil),B) != sk4 )
        | ( app(B,cons(A,nil)) = sk3 ) ) ),
    inference(quant_intro,[status(thm)],[155]) ).

tff(157,plain,
    ( ! [B: $i,A: $i] :
        ( ~ ssItem(A)
        | ~ ssList(B)
        | ( app(cons(A,nil),B) != sk4 )
        | ( app(B,cons(A,nil)) = sk3 ) )
  <=> ! [B: $i,A: $i] :
        ( ~ ssItem(A)
        | ~ ssList(B)
        | ( app(cons(A,nil),B) != sk4 )
        | ( app(B,cons(A,nil)) = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(158,plain,
    ^ [B: $i,A: $i] :
      trans(
        monotonicity(
          rewrite(
            ( ( ~ ssItem(A)
              | ~ ssList(B)
              | ( app(B,cons(A,nil)) = sk3 ) )
          <=> ( ~ ssItem(A)
              | ~ ssList(B)
              | ( app(B,cons(A,nil)) = sk3 ) ) )),
          ( ( ~ ssItem(A)
            | ~ ssList(B)
            | ( app(B,cons(A,nil)) = sk3 )
            | ( app(cons(A,nil),B) != sk4 ) )
        <=> ( ~ ssItem(A)
            | ~ ssList(B)
            | ( app(B,cons(A,nil)) = sk3 )
            | ( app(cons(A,nil),B) != sk4 ) ) )),
        rewrite(
          ( ( ~ ssItem(A)
            | ~ ssList(B)
            | ( app(B,cons(A,nil)) = sk3 )
            | ( app(cons(A,nil),B) != sk4 ) )
        <=> ( ~ ssItem(A)
            | ~ ssList(B)
            | ( app(cons(A,nil),B) != sk4 )
            | ( app(B,cons(A,nil)) = sk3 ) ) )),
        ( ( ~ ssItem(A)
          | ~ ssList(B)
          | ( app(B,cons(A,nil)) = sk3 )
          | ( app(cons(A,nil),B) != sk4 ) )
      <=> ( ~ ssItem(A)
          | ~ ssList(B)
          | ( app(cons(A,nil),B) != sk4 )
          | ( app(B,cons(A,nil)) = sk3 ) ) )),
    inference(bind,[status(th)],]) ).

tff(159,plain,
    ( ! [B: $i,A: $i] :
        ( ~ ssItem(A)
        | ~ ssList(B)
        | ( app(B,cons(A,nil)) = sk3 )
        | ( app(cons(A,nil),B) != sk4 ) )
  <=> ! [B: $i,A: $i] :
        ( ~ ssItem(A)
        | ~ ssList(B)
        | ( app(cons(A,nil),B) != sk4 )
        | ( app(B,cons(A,nil)) = sk3 ) ) ),
    inference(quant_intro,[status(thm)],[158]) ).

tff(160,axiom,
    ! [B: $i,A: $i] :
      ( ~ ssItem(A)
      | ~ ssList(B)
      | ( app(B,cons(A,nil)) = sk3 )
      | ( app(cons(A,nil),B) != sk4 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_7) ).

tff(161,plain,
    ! [B: $i,A: $i] :
      ( ~ ssItem(A)
      | ~ ssList(B)
      | ( app(cons(A,nil),B) != sk4 )
      | ( app(B,cons(A,nil)) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[160,159]) ).

tff(162,plain,
    ! [B: $i,A: $i] :
      ( ~ ssItem(A)
      | ~ ssList(B)
      | ( app(cons(A,nil),B) != sk4 )
      | ( app(B,cons(A,nil)) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[161,157]) ).

tff(163,plain,
    ! [B: $i,A: $i] :
      ( ~ ssItem(A)
      | ~ ssList(B)
      | ( app(cons(A,nil),B) != sk4 )
      | ( app(B,cons(A,nil)) = sk3 ) ),
    inference(skolemize,[status(sab)],[162]) ).

tff(164,plain,
    ! [B: $i,A: $i] :
      ( ~ ssItem(A)
      | ~ ssList(B)
      | ( app(cons(A,nil),B) != sk4 )
      | ( app(B,cons(A,nil)) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[163,156]) ).

tff(165,plain,
    ( ( ~ ! [B: $i,A: $i] :
            ( ~ ssItem(A)
            | ~ ssList(B)
            | ( app(cons(A,nil),B) != sk4 )
            | ( app(B,cons(A,nil)) = sk3 ) )
      | ~ ssItem(hd(sk4))
      | ~ ssList(tl(sk4))
      | ( app(cons(hd(sk4),nil),tl(sk4)) != sk4 )
      | ( app(tl(sk4),cons(hd(sk4),nil)) = sk3 ) )
  <=> ( ~ ! [B: $i,A: $i] :
            ( ~ ssItem(A)
            | ~ ssList(B)
            | ( app(cons(A,nil),B) != sk4 )
            | ( app(B,cons(A,nil)) = sk3 ) )
      | ~ ssItem(hd(sk4))
      | ~ ssList(tl(sk4))
      | ( app(cons(hd(sk4),nil),tl(sk4)) != sk4 )
      | ( app(tl(sk4),cons(hd(sk4),nil)) = sk3 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(166,plain,
    ( ~ ! [B: $i,A: $i] :
          ( ~ ssItem(A)
          | ~ ssList(B)
          | ( app(cons(A,nil),B) != sk4 )
          | ( app(B,cons(A,nil)) = sk3 ) )
    | ~ ssItem(hd(sk4))
    | ~ ssList(tl(sk4))
    | ( app(cons(hd(sk4),nil),tl(sk4)) != sk4 )
    | ( app(tl(sk4),cons(hd(sk4),nil)) = sk3 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(167,plain,
    ( ~ ! [B: $i,A: $i] :
          ( ~ ssItem(A)
          | ~ ssList(B)
          | ( app(cons(A,nil),B) != sk4 )
          | ( app(B,cons(A,nil)) = sk3 ) )
    | ~ ssItem(hd(sk4))
    | ~ ssList(tl(sk4))
    | ( app(cons(hd(sk4),nil),tl(sk4)) != sk4 )
    | ( app(tl(sk4),cons(hd(sk4),nil)) = sk3 ) ),
    inference(modus_ponens,[status(thm)],[166,165]) ).

tff(168,plain,
    app(tl(sk4),cons(hd(sk4),nil)) = sk3,
    inference(unit_resolution,[status(thm)],[167,164,135,117,151]) ).

tff(169,plain,
    ( memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
  <=> memberP(sk3,sk5) ),
    inference(monotonicity,[status(thm)],[168]) ).

tff(170,plain,
    ( memberP(sk3,sk5)
  <=> memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ),
    inference(symmetry,[status(thm)],[169]) ).

tff(171,plain,
    ( ~ memberP(sk3,sk5)
  <=> ~ memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ),
    inference(monotonicity,[status(thm)],[170]) ).

tff(172,plain,
    ( ~ memberP(sk1,sk5)
  <=> ~ memberP(sk3,sk5) ),
    inference(rewrite,[status(thm)],]) ).

tff(173,plain,
    ( ~ memberP(sk1,sk5)
  <=> ~ memberP(sk1,sk5) ),
    inference(rewrite,[status(thm)],]) ).

tff(174,axiom,
    ~ memberP(sk1,sk5),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_10) ).

tff(175,plain,
    ~ memberP(sk1,sk5),
    inference(modus_ponens,[status(thm)],[174,173]) ).

tff(176,plain,
    ~ memberP(sk3,sk5),
    inference(modus_ponens,[status(thm)],[175,172]) ).

tff(177,plain,
    ~ memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5),
    inference(modus_ponens,[status(thm)],[176,171]) ).

tff(178,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(179,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)],[178]) ).

tff(180,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(181,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(182,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)],[181]) ).

tff(183,axiom,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause86) ).

tff(184,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(modus_ponens,[status(thm)],[183,182]) ).

tff(185,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(modus_ponens,[status(thm)],[184,180]) ).

tff(186,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(skolemize,[status(sab)],[185]) ).

tff(187,plain,
    ! [V: $i,U: $i] :
      ( ~ ssItem(U)
      | ~ ssList(V)
      | ssList(cons(U,V)) ),
    inference(modus_ponens,[status(thm)],[186,179]) ).

tff(188,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk4))
      | ssList(cons(hd(sk4),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk4))
      | ssList(cons(hd(sk4),nil)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(189,plain,
    ( ( ~ ssItem(hd(sk4))
      | ~ ssList(nil)
      | ssList(cons(hd(sk4),nil)) )
  <=> ( ~ ssList(nil)
      | ~ ssItem(hd(sk4))
      | ssList(cons(hd(sk4),nil)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(190,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssItem(hd(sk4))
      | ~ ssList(nil)
      | ssList(cons(hd(sk4),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk4))
      | ssList(cons(hd(sk4),nil)) ) ),
    inference(monotonicity,[status(thm)],[189]) ).

tff(191,plain,
    ( ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssItem(hd(sk4))
      | ~ ssList(nil)
      | ssList(cons(hd(sk4),nil)) )
  <=> ( ~ ! [V: $i,U: $i] :
            ( ~ ssItem(U)
            | ~ ssList(V)
            | ssList(cons(U,V)) )
      | ~ ssList(nil)
      | ~ ssItem(hd(sk4))
      | ssList(cons(hd(sk4),nil)) ) ),
    inference(transitivity,[status(thm)],[190,188]) ).

tff(192,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) )
    | ~ ssItem(hd(sk4))
    | ~ ssList(nil)
    | ssList(cons(hd(sk4),nil)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(193,plain,
    ( ~ ! [V: $i,U: $i] :
          ( ~ ssItem(U)
          | ~ ssList(V)
          | ssList(cons(U,V)) )
    | ~ ssList(nil)
    | ~ ssItem(hd(sk4))
    | ssList(cons(hd(sk4),nil)) ),
    inference(modus_ponens,[status(thm)],[192,191]) ).

tff(194,plain,
    ssList(cons(hd(sk4),nil)),
    inference(unit_resolution,[status(thm)],[193,76,187,135]) ).

tff(195,plain,
    ^ [W: $i,V: $i,U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(U,W),V) )
      <=> ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(U,W),V) ) )),
    inference(bind,[status(th)],]) ).

tff(196,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(U,W),V) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(U,W),V) ) ),
    inference(quant_intro,[status(thm)],[195]) ).

tff(197,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(U,W),V) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(U,W),V) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(198,plain,
    ^ [W: $i,V: $i,U: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              trans(
                monotonicity(
                  rewrite(
                    ( ( ~ memberP(U,V)
                      | ~ ssList(W) )
                  <=> ( ~ ssList(W)
                      | ~ memberP(U,V) ) )),
                  ( ( ~ memberP(U,V)
                    | ~ ssList(W)
                    | ~ ssList(U) )
                <=> ( ~ ssList(W)
                    | ~ memberP(U,V)
                    | ~ ssList(U) ) )),
                rewrite(
                  ( ( ~ ssList(W)
                    | ~ memberP(U,V)
                    | ~ ssList(U) )
                <=> ( ~ ssList(U)
                    | ~ ssList(W)
                    | ~ memberP(U,V) ) )),
                ( ( ~ memberP(U,V)
                  | ~ ssList(W)
                  | ~ ssList(U) )
              <=> ( ~ ssList(U)
                  | ~ ssList(W)
                  | ~ memberP(U,V) ) )),
              ( ( ~ memberP(U,V)
                | ~ ssList(W)
                | ~ ssList(U)
                | ~ ssItem(V) )
            <=> ( ~ ssList(U)
                | ~ ssList(W)
                | ~ memberP(U,V)
                | ~ ssItem(V) ) )),
            rewrite(
              ( ( ~ ssList(U)
                | ~ ssList(W)
                | ~ memberP(U,V)
                | ~ ssItem(V) )
            <=> ( ~ ssList(U)
                | ~ ssItem(V)
                | ~ ssList(W)
                | ~ memberP(U,V) ) )),
            ( ( ~ memberP(U,V)
              | ~ ssList(W)
              | ~ ssList(U)
              | ~ ssItem(V) )
          <=> ( ~ ssList(U)
              | ~ ssItem(V)
              | ~ ssList(W)
              | ~ memberP(U,V) ) )),
          ( ( ~ memberP(U,V)
            | ~ ssList(W)
            | ~ ssList(U)
            | ~ ssItem(V)
            | memberP(app(U,W),V) )
        <=> ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) ) )),
        rewrite(
          ( ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) )
        <=> ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) ) )),
        ( ( ~ memberP(U,V)
          | ~ ssList(W)
          | ~ ssList(U)
          | ~ ssItem(V)
          | memberP(app(U,W),V) )
      <=> ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(U,W),V) ) )),
    inference(bind,[status(th)],]) ).

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

tff(200,axiom,
    ! [W: $i,V: $i,U: $i] :
      ( ~ memberP(U,V)
      | ~ ssList(W)
      | ~ ssList(U)
      | ~ ssItem(V)
      | memberP(app(U,W),V) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause140) ).

tff(201,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(U,W),V) ),
    inference(modus_ponens,[status(thm)],[200,199]) ).

tff(202,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(U,W),V) ),
    inference(modus_ponens,[status(thm)],[201,197]) ).

tff(203,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(U,W),V) ),
    inference(skolemize,[status(sab)],[202]) ).

tff(204,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(U,W),V) ),
    inference(modus_ponens,[status(thm)],[203,196]) ).

tff(205,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(206,plain,
    ( ( ~ ssList(tl(sk4))
      | ~ ssItem(sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) )
  <=> ( ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(207,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) )
      | ~ ssList(tl(sk4))
      | ~ ssItem(sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ) ),
    inference(monotonicity,[status(thm)],[206]) ).

tff(208,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) )
      | ~ ssList(tl(sk4))
      | ~ ssItem(sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(U,W),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | ~ memberP(tl(sk4),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ) ),
    inference(transitivity,[status(thm)],[207,205]) ).

tff(209,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(U,W),V) )
    | ~ ssList(tl(sk4))
    | ~ ssItem(sk5)
    | ~ ssList(cons(hd(sk4),nil))
    | ~ memberP(tl(sk4),sk5)
    | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ),
    inference(quant_inst,[status(thm)],]) ).

tff(210,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(U,W),V) )
    | ~ ssItem(sk5)
    | ~ ssList(tl(sk4))
    | ~ ssList(cons(hd(sk4),nil))
    | ~ memberP(tl(sk4),sk5)
    | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ),
    inference(modus_ponens,[status(thm)],[209,208]) ).

tff(211,plain,
    ( ~ memberP(tl(sk4),sk5)
    | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ),
    inference(unit_resolution,[status(thm)],[210,204,9,117,194]) ).

tff(212,plain,
    ~ memberP(tl(sk4),sk5),
    inference(unit_resolution,[status(thm)],[211,177]) ).

tff(213,plain,
    ^ [W: $i,V: $i,U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(W,U),V) )
      <=> ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(W,U),V) ) )),
    inference(bind,[status(th)],]) ).

tff(214,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(W,U),V) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(W,U),V) ) ),
    inference(quant_intro,[status(thm)],[213]) ).

tff(215,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(W,U),V) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssItem(V)
        | ~ ssList(W)
        | ~ memberP(U,V)
        | memberP(app(W,U),V) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(216,plain,
    ^ [W: $i,V: $i,U: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              trans(
                monotonicity(
                  rewrite(
                    ( ( ~ memberP(U,V)
                      | ~ ssList(U) )
                  <=> ( ~ ssList(U)
                      | ~ memberP(U,V) ) )),
                  ( ( ~ memberP(U,V)
                    | ~ ssList(U)
                    | ~ ssList(W) )
                <=> ( ~ ssList(U)
                    | ~ memberP(U,V)
                    | ~ ssList(W) ) )),
                rewrite(
                  ( ( ~ ssList(U)
                    | ~ memberP(U,V)
                    | ~ ssList(W) )
                <=> ( ~ ssList(U)
                    | ~ ssList(W)
                    | ~ memberP(U,V) ) )),
                ( ( ~ memberP(U,V)
                  | ~ ssList(U)
                  | ~ ssList(W) )
              <=> ( ~ ssList(U)
                  | ~ ssList(W)
                  | ~ memberP(U,V) ) )),
              ( ( ~ memberP(U,V)
                | ~ ssList(U)
                | ~ ssList(W)
                | ~ ssItem(V) )
            <=> ( ~ ssList(U)
                | ~ ssList(W)
                | ~ memberP(U,V)
                | ~ ssItem(V) ) )),
            rewrite(
              ( ( ~ ssList(U)
                | ~ ssList(W)
                | ~ memberP(U,V)
                | ~ ssItem(V) )
            <=> ( ~ ssList(U)
                | ~ ssItem(V)
                | ~ ssList(W)
                | ~ memberP(U,V) ) )),
            ( ( ~ memberP(U,V)
              | ~ ssList(U)
              | ~ ssList(W)
              | ~ ssItem(V) )
          <=> ( ~ ssList(U)
              | ~ ssItem(V)
              | ~ ssList(W)
              | ~ memberP(U,V) ) )),
          ( ( ~ memberP(U,V)
            | ~ ssList(U)
            | ~ ssList(W)
            | ~ ssItem(V)
            | memberP(app(W,U),V) )
        <=> ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) ) )),
        rewrite(
          ( ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) )
        <=> ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) ) )),
        ( ( ~ memberP(U,V)
          | ~ ssList(U)
          | ~ ssList(W)
          | ~ ssItem(V)
          | memberP(app(W,U),V) )
      <=> ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(W,U),V) ) )),
    inference(bind,[status(th)],]) ).

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

tff(218,axiom,
    ! [W: $i,V: $i,U: $i] :
      ( ~ memberP(U,V)
      | ~ ssList(U)
      | ~ ssList(W)
      | ~ ssItem(V)
      | memberP(app(W,U),V) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause141) ).

tff(219,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(W,U),V) ),
    inference(modus_ponens,[status(thm)],[218,217]) ).

tff(220,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(W,U),V) ),
    inference(modus_ponens,[status(thm)],[219,215]) ).

tff(221,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(W,U),V) ),
    inference(skolemize,[status(sab)],[220]) ).

tff(222,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssItem(V)
      | ~ ssList(W)
      | ~ memberP(U,V)
      | memberP(app(W,U),V) ),
    inference(modus_ponens,[status(thm)],[221,214]) ).

tff(223,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
      | ~ memberP(cons(hd(sk4),nil),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
      | ~ memberP(cons(hd(sk4),nil),sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(224,plain,
    ( ( ~ ssList(cons(hd(sk4),nil))
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ memberP(cons(hd(sk4),nil),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) )
  <=> ( ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
      | ~ memberP(cons(hd(sk4),nil),sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(225,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) )
      | ~ ssList(cons(hd(sk4),nil))
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ memberP(cons(hd(sk4),nil),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
      | ~ memberP(cons(hd(sk4),nil),sk5) ) ),
    inference(monotonicity,[status(thm)],[224]) ).

tff(226,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) )
      | ~ ssList(cons(hd(sk4),nil))
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ memberP(cons(hd(sk4),nil),sk5)
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssItem(V)
            | ~ ssList(W)
            | ~ memberP(U,V)
            | memberP(app(W,U),V) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
      | ~ memberP(cons(hd(sk4),nil),sk5) ) ),
    inference(transitivity,[status(thm)],[225,223]) ).

tff(227,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(W,U),V) )
    | ~ ssList(cons(hd(sk4),nil))
    | ~ ssItem(sk5)
    | ~ ssList(tl(sk4))
    | ~ memberP(cons(hd(sk4),nil),sk5)
    | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5) ),
    inference(quant_inst,[status(thm)],]) ).

tff(228,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssItem(V)
          | ~ ssList(W)
          | ~ memberP(U,V)
          | memberP(app(W,U),V) )
    | ~ ssItem(sk5)
    | ~ ssList(tl(sk4))
    | ~ ssList(cons(hd(sk4),nil))
    | memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
    | ~ memberP(cons(hd(sk4),nil),sk5) ),
    inference(modus_ponens,[status(thm)],[227,226]) ).

tff(229,plain,
    ( memberP(app(tl(sk4),cons(hd(sk4),nil)),sk5)
    | ~ memberP(cons(hd(sk4),nil),sk5) ),
    inference(unit_resolution,[status(thm)],[228,222,9,117,194]) ).

tff(230,plain,
    ~ memberP(cons(hd(sk4),nil),sk5),
    inference(unit_resolution,[status(thm)],[229,177]) ).

tff(231,plain,
    ^ [W: $i,V: $i,U: $i] :
      refl(
        ( ( ~ ssList(U)
          | ~ ssList(V)
          | ~ ssItem(W)
          | memberP(U,W)
          | memberP(V,W)
          | ~ memberP(app(U,V),W) )
      <=> ( ~ ssList(U)
          | ~ ssList(V)
          | ~ ssItem(W)
          | memberP(U,W)
          | memberP(V,W)
          | ~ memberP(app(U,V),W) ) )),
    inference(bind,[status(th)],]) ).

tff(232,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ~ ssItem(W)
        | memberP(U,W)
        | memberP(V,W)
        | ~ memberP(app(U,V),W) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ~ ssItem(W)
        | memberP(U,W)
        | memberP(V,W)
        | ~ memberP(app(U,V),W) ) ),
    inference(quant_intro,[status(thm)],[231]) ).

tff(233,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ~ ssItem(W)
        | memberP(U,W)
        | memberP(V,W)
        | ~ memberP(app(U,V),W) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ~ ssItem(W)
        | memberP(U,W)
        | memberP(V,W)
        | ~ memberP(app(U,V),W) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(234,plain,
    ^ [W: $i,V: $i,U: $i] :
      trans(
        monotonicity(
          trans(
            monotonicity(
              trans(
                monotonicity(
                  trans(
                    monotonicity(
                      rewrite(
                        ( ( ~ memberP(app(U,V),W)
                          | ~ ssList(V) )
                      <=> ( ~ ssList(V)
                          | ~ memberP(app(U,V),W) ) )),
                      ( ( ~ memberP(app(U,V),W)
                        | ~ ssList(V)
                        | ~ ssList(U) )
                    <=> ( ~ ssList(V)
                        | ~ memberP(app(U,V),W)
                        | ~ ssList(U) ) )),
                    rewrite(
                      ( ( ~ ssList(V)
                        | ~ memberP(app(U,V),W)
                        | ~ ssList(U) )
                    <=> ( ~ ssList(U)
                        | ~ ssList(V)
                        | ~ memberP(app(U,V),W) ) )),
                    ( ( ~ memberP(app(U,V),W)
                      | ~ ssList(V)
                      | ~ ssList(U) )
                  <=> ( ~ ssList(U)
                      | ~ ssList(V)
                      | ~ memberP(app(U,V),W) ) )),
                  ( ( ~ memberP(app(U,V),W)
                    | ~ ssList(V)
                    | ~ ssList(U)
                    | ~ ssItem(W) )
                <=> ( ~ ssList(U)
                    | ~ ssList(V)
                    | ~ memberP(app(U,V),W)
                    | ~ ssItem(W) ) )),
                rewrite(
                  ( ( ~ ssList(U)
                    | ~ ssList(V)
                    | ~ memberP(app(U,V),W)
                    | ~ ssItem(W) )
                <=> ( ~ ssList(U)
                    | ~ ssList(V)
                    | ~ ssItem(W)
                    | ~ memberP(app(U,V),W) ) )),
                ( ( ~ memberP(app(U,V),W)
                  | ~ ssList(V)
                  | ~ ssList(U)
                  | ~ ssItem(W) )
              <=> ( ~ ssList(U)
                  | ~ ssList(V)
                  | ~ ssItem(W)
                  | ~ memberP(app(U,V),W) ) )),
              ( ( ~ memberP(app(U,V),W)
                | ~ ssList(V)
                | ~ ssList(U)
                | ~ ssItem(W)
                | memberP(V,W) )
            <=> ( ~ ssList(U)
                | ~ ssList(V)
                | ~ ssItem(W)
                | ~ memberP(app(U,V),W)
                | memberP(V,W) ) )),
            rewrite(
              ( ( ~ ssList(U)
                | ~ ssList(V)
                | ~ ssItem(W)
                | ~ memberP(app(U,V),W)
                | memberP(V,W) )
            <=> ( ~ ssList(U)
                | ~ ssList(V)
                | ~ ssItem(W)
                | memberP(V,W)
                | ~ memberP(app(U,V),W) ) )),
            ( ( ~ memberP(app(U,V),W)
              | ~ ssList(V)
              | ~ ssList(U)
              | ~ ssItem(W)
              | memberP(V,W) )
          <=> ( ~ ssList(U)
              | ~ ssList(V)
              | ~ ssItem(W)
              | memberP(V,W)
              | ~ memberP(app(U,V),W) ) )),
          ( ( ~ memberP(app(U,V),W)
            | ~ ssList(V)
            | ~ ssList(U)
            | ~ ssItem(W)
            | memberP(V,W)
            | memberP(U,W) )
        <=> ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W)
            | memberP(U,W) ) )),
        rewrite(
          ( ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W)
            | memberP(U,W) )
        <=> ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(U,W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W) ) )),
        ( ( ~ memberP(app(U,V),W)
          | ~ ssList(V)
          | ~ ssList(U)
          | ~ ssItem(W)
          | memberP(V,W)
          | memberP(U,W) )
      <=> ( ~ ssList(U)
          | ~ ssList(V)
          | ~ ssItem(W)
          | memberP(U,W)
          | memberP(V,W)
          | ~ memberP(app(U,V),W) ) )),
    inference(bind,[status(th)],]) ).

tff(235,plain,
    ( ! [W: $i,V: $i,U: $i] :
        ( ~ memberP(app(U,V),W)
        | ~ ssList(V)
        | ~ ssList(U)
        | ~ ssItem(W)
        | memberP(V,W)
        | memberP(U,W) )
  <=> ! [W: $i,V: $i,U: $i] :
        ( ~ ssList(U)
        | ~ ssList(V)
        | ~ ssItem(W)
        | memberP(U,W)
        | memberP(V,W)
        | ~ memberP(app(U,V),W) ) ),
    inference(quant_intro,[status(thm)],[234]) ).

tff(236,axiom,
    ! [W: $i,V: $i,U: $i] :
      ( ~ memberP(app(U,V),W)
      | ~ ssList(V)
      | ~ ssList(U)
      | ~ ssItem(W)
      | memberP(V,W)
      | memberP(U,W) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause158) ).

tff(237,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ~ ssItem(W)
      | memberP(U,W)
      | memberP(V,W)
      | ~ memberP(app(U,V),W) ),
    inference(modus_ponens,[status(thm)],[236,235]) ).

tff(238,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ~ ssItem(W)
      | memberP(U,W)
      | memberP(V,W)
      | ~ memberP(app(U,V),W) ),
    inference(modus_ponens,[status(thm)],[237,233]) ).

tff(239,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ~ ssItem(W)
      | memberP(U,W)
      | memberP(V,W)
      | ~ memberP(app(U,V),W) ),
    inference(skolemize,[status(sab)],[238]) ).

tff(240,plain,
    ! [W: $i,V: $i,U: $i] :
      ( ~ ssList(U)
      | ~ ssList(V)
      | ~ ssItem(W)
      | memberP(U,W)
      | memberP(V,W)
      | ~ memberP(app(U,V),W) ),
    inference(modus_ponens,[status(thm)],[239,232]) ).

tff(241,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(U,W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | memberP(tl(sk4),sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(cons(hd(sk4),nil),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(U,W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | memberP(tl(sk4),sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(cons(hd(sk4),nil),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(242,plain,
    ( ( ~ ssList(cons(hd(sk4),nil))
      | ~ ssList(tl(sk4))
      | ~ ssItem(sk5)
      | memberP(cons(hd(sk4),nil),sk5)
      | memberP(tl(sk4),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) )
  <=> ( ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | memberP(tl(sk4),sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(cons(hd(sk4),nil),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(243,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(U,W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W) )
      | ~ ssList(cons(hd(sk4),nil))
      | ~ ssList(tl(sk4))
      | ~ ssItem(sk5)
      | memberP(cons(hd(sk4),nil),sk5)
      | memberP(tl(sk4),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(U,W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | memberP(tl(sk4),sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(cons(hd(sk4),nil),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ) ),
    inference(monotonicity,[status(thm)],[242]) ).

tff(244,plain,
    ( ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(U,W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W) )
      | ~ ssList(cons(hd(sk4),nil))
      | ~ ssList(tl(sk4))
      | ~ ssItem(sk5)
      | memberP(cons(hd(sk4),nil),sk5)
      | memberP(tl(sk4),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) )
  <=> ( ~ ! [W: $i,V: $i,U: $i] :
            ( ~ ssList(U)
            | ~ ssList(V)
            | ~ ssItem(W)
            | memberP(U,W)
            | memberP(V,W)
            | ~ memberP(app(U,V),W) )
      | ~ ssItem(sk5)
      | ~ ssList(tl(sk4))
      | memberP(tl(sk4),sk5)
      | ~ ssList(cons(hd(sk4),nil))
      | memberP(cons(hd(sk4),nil),sk5)
      | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ) ),
    inference(transitivity,[status(thm)],[243,241]) ).

tff(245,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssList(V)
          | ~ ssItem(W)
          | memberP(U,W)
          | memberP(V,W)
          | ~ memberP(app(U,V),W) )
    | ~ ssList(cons(hd(sk4),nil))
    | ~ ssList(tl(sk4))
    | ~ ssItem(sk5)
    | memberP(cons(hd(sk4),nil),sk5)
    | memberP(tl(sk4),sk5)
    | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ),
    inference(quant_inst,[status(thm)],]) ).

tff(246,plain,
    ( ~ ! [W: $i,V: $i,U: $i] :
          ( ~ ssList(U)
          | ~ ssList(V)
          | ~ ssItem(W)
          | memberP(U,W)
          | memberP(V,W)
          | ~ memberP(app(U,V),W) )
    | ~ ssItem(sk5)
    | ~ ssList(tl(sk4))
    | memberP(tl(sk4),sk5)
    | ~ ssList(cons(hd(sk4),nil))
    | memberP(cons(hd(sk4),nil),sk5)
    | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ),
    inference(modus_ponens,[status(thm)],[245,244]) ).

tff(247,plain,
    ( memberP(tl(sk4),sk5)
    | memberP(cons(hd(sk4),nil),sk5)
    | ~ memberP(app(cons(hd(sk4),nil),tl(sk4)),sk5) ),
    inference(unit_resolution,[status(thm)],[246,240,9,117,194]) ).

tff(248,plain,
    $false,
    inference(unit_resolution,[status(thm)],[247,230,212,154]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.09  % Problem  : SWC409-1 : TPTP v8.1.0. Released v2.4.0.
% 0.03/0.10  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.10/0.31  % Computer : n026.cluster.edu
% 0.10/0.31  % Model    : x86_64 x86_64
% 0.10/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.31  % Memory   : 8042.1875MB
% 0.10/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.10/0.31  % CPULimit : 300
% 0.10/0.31  % WCLimit  : 300
% 0.10/0.31  % DateTime : Sun Sep  4 01:00:54 EDT 2022
% 0.10/0.31  % CPUTime  : 
% 0.10/0.31  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.10/0.31  Usage: tptp [options] [-file:]file
% 0.10/0.31    -h, -?       prints this message.
% 0.10/0.31    -smt2        print SMT-LIB2 benchmark.
% 0.10/0.31    -m, -model   generate model.
% 0.10/0.31    -p, -proof   generate proof.
% 0.10/0.31    -c, -core    generate unsat core of named formulas.
% 0.10/0.31    -st, -statistics display statistics.
% 0.10/0.31    -t:timeout   set timeout (in second).
% 0.10/0.31    -smt2status  display status in smt2 format instead of SZS.
% 0.10/0.31    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.10/0.31    -<param>:<value> configuration parameter and value.
% 0.10/0.31    -o:<output-file> file to place output in.
% 42.09/26.93  % SZS status Unsatisfiable
% 42.09/26.93  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------