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Z3---4.15.1.UNS-Prf.s

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%------------------------------------------------------------------------------
% File     : Z3---4.15.1
% Problem  : PLA007-1 : TPTP v9.0.0. Released v1.1.0.
% Transfm  : none
% Format   : tptp
% Command  : run_E %s %d THM

% Computer : n007.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Sat Jun 21 05:22:50 AM UTC 2025

% Result   : Unsatisfiable 32.22s 32.37s
% Output   : Proof 32.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :  116
% Syntax   : Number of formulae    :  244 (  71 unt;   0 typ;   0 def)
%            Number of atoms       : 1513 (   0 equ)
%            Maximal formula atoms :   16 (   6 avg)
%            Number of connectives : 2278 (1080   ~;1068   |;   0   &)
%                                         ( 130 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   6 avg)
%            Maximal term depth    :    8 (   2 avg)
%            Number of FOOLs       :   71 (  71 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :    7 (   6 usr;   1 prp; 0-3 aty)
%            Number of functors    :   13 (  13 usr;   7 con; 0-2 aty)
%            Number of variables   :  657 ( 610   !;   0   ?; 657   :)

% Comments : 
%------------------------------------------------------------------------------
tff(holds_type,type,
    holds: ( $i * $i ) > $o ).

tff(do_type,type,
    do: ( $i * $i ) > $i ).

tff(s0_type,type,
    s0: $i ).

tff(pickup_type,type,
    pickup: $i > $i ).

tff(c_type,type,
    c: $i ).

tff(putdown_type,type,
    putdown: ( $i * $i ) > $i ).

tff(a_type,type,
    a: $i ).

tff(b_type,type,
    b: $i ).

tff(d_type,type,
    d: $i ).

tff(on_type,type,
    on: ( $i * $i ) > $i ).

tff(clear_type,type,
    clear: $i > $i ).

tff(differ_type,type,
    differ: ( $i * $i ) > $o ).

tff(empty_type,type,
    empty: $i ).

tff(holding_type,type,
    holding: $i > $i ).

tff(table_type,type,
    table: $i ).

tff(1,plain,
    ( differ(a,d)
  <=> differ(a,d) ),
    inference(rewrite,[status(thm)],[]) ).

tff(2,axiom,
    differ(a,d),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_a_d) ).

tff(3,plain,
    differ(a,d),
    inference(modus_ponens,[status(thm)],[2,1]) ).

tff(4,plain,
    ^ [Y: $i,X: $i] :
      refl(( ( ~ differ(Y,X)
          | differ(X,Y) )
      <=> ( ~ differ(Y,X)
          | differ(X,Y) ) )),
    inference(bind,[status(th)],[]) ).

tff(5,plain,
    ( ! [Y: $i,X: $i] :
        ( ~ differ(Y,X)
        | differ(X,Y) )
  <=> ! [Y: $i,X: $i] :
        ( ~ differ(Y,X)
        | differ(X,Y) ) ),
    inference(quant_intro,[status(thm)],[4]) ).

tff(6,plain,
    ( ! [Y: $i,X: $i] :
        ( ~ differ(Y,X)
        | differ(X,Y) )
  <=> ! [Y: $i,X: $i] :
        ( ~ differ(Y,X)
        | differ(X,Y) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(7,plain,
    ^ [Y: $i,X: $i] :
      rewrite(( ( differ(X,Y)
          | ~ differ(Y,X) )
      <=> ( ~ differ(Y,X)
          | differ(X,Y) ) )),
    inference(bind,[status(th)],[]) ).

tff(8,plain,
    ( ! [Y: $i,X: $i] :
        ( differ(X,Y)
        | ~ differ(Y,X) )
  <=> ! [Y: $i,X: $i] :
        ( ~ differ(Y,X)
        | differ(X,Y) ) ),
    inference(quant_intro,[status(thm)],[7]) ).

tff(9,axiom,
    ! [Y: $i,X: $i] :
      ( differ(X,Y)
      | ~ differ(Y,X) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',symmetry_of_differ) ).

tff(10,plain,
    ! [Y: $i,X: $i] :
      ( ~ differ(Y,X)
      | differ(X,Y) ),
    inference(modus_ponens,[status(thm)],[9,8]) ).

tff(11,plain,
    ! [Y: $i,X: $i] :
      ( ~ differ(Y,X)
      | differ(X,Y) ),
    inference(modus_ponens,[status(thm)],[10,6]) ).

tff(12,plain,
    ! [Y: $i,X: $i] :
      ( ~ differ(Y,X)
      | differ(X,Y) ),
    inference(skolemize,[status(sab)],[11]) ).

tff(13,plain,
    ! [Y: $i,X: $i] :
      ( ~ differ(Y,X)
      | differ(X,Y) ),
    inference(modus_ponens,[status(thm)],[12,5]) ).

tff(14,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(a,d)
      | differ(d,a) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(a,d)
      | differ(d,a) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(15,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(a,d)
    | differ(d,a) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(16,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(a,d)
    | differ(d,a) ),
    inference(modus_ponens,[status(thm)],[15,14]) ).

tff(17,plain,
    differ(d,a),
    inference(unit_resolution,[status(thm)],[16,13,3]) ).

tff(18,plain,
    ( holds(empty,s0)
  <=> holds(empty,s0) ),
    inference(rewrite,[status(thm)],[]) ).

tff(19,axiom,
    holds(empty,s0),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',initial_state8) ).

tff(20,plain,
    holds(empty,s0),
    inference(modus_ponens,[status(thm)],[19,18]) ).

tff(21,plain,
    ( holds(clear(c),s0)
  <=> holds(clear(c),s0) ),
    inference(rewrite,[status(thm)],[]) ).

tff(22,axiom,
    holds(clear(c),s0),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',initial_state7) ).

tff(23,plain,
    holds(clear(c),s0),
    inference(modus_ponens,[status(thm)],[22,21]) ).

tff(24,plain,
    ( holds(on(c,d),s0)
  <=> holds(on(c,d),s0) ),
    inference(rewrite,[status(thm)],[]) ).

tff(25,axiom,
    holds(on(c,d),s0),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',initial_state3) ).

tff(26,plain,
    holds(on(c,d),s0),
    inference(modus_ponens,[status(thm)],[25,24]) ).

tff(27,plain,
    ^ [Y: $i,State: $i,X: $i] :
      refl(( ( ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | ~ holds(on(X,Y),State)
          | holds(clear(Y),do(pickup(X),State)) )
      <=> ( ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | ~ holds(on(X,Y),State)
          | holds(clear(Y),do(pickup(X),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(28,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | ~ holds(on(X,Y),State)
        | holds(clear(Y),do(pickup(X),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | ~ holds(on(X,Y),State)
        | holds(clear(Y),do(pickup(X),State)) ) ),
    inference(quant_intro,[status(thm)],[27]) ).

tff(29,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | ~ holds(on(X,Y),State)
        | holds(clear(Y),do(pickup(X),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | ~ holds(on(X,Y),State)
        | holds(clear(Y),do(pickup(X),State)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(30,plain,
    ^ [Y: $i,State: $i,X: $i] :
      trans(monotonicity(trans(monotonicity(rewrite(( ( holds(clear(Y),do(pickup(X),State))
                  | ~ holds(on(X,Y),State) )
              <=> ( ~ holds(on(X,Y),State)
                  | holds(clear(Y),do(pickup(X),State)) ) )),
              ( ( holds(clear(Y),do(pickup(X),State))
                | ~ holds(on(X,Y),State)
                | ~ holds(clear(X),State) )
            <=> ( ~ holds(on(X,Y),State)
                | holds(clear(Y),do(pickup(X),State))
                | ~ holds(clear(X),State) ) )),
            rewrite(( ( ~ holds(on(X,Y),State)
                | holds(clear(Y),do(pickup(X),State))
                | ~ holds(clear(X),State) )
            <=> ( ~ holds(clear(X),State)
                | ~ holds(on(X,Y),State)
                | holds(clear(Y),do(pickup(X),State)) ) )),
            ( ( holds(clear(Y),do(pickup(X),State))
              | ~ holds(on(X,Y),State)
              | ~ holds(clear(X),State) )
          <=> ( ~ holds(clear(X),State)
              | ~ holds(on(X,Y),State)
              | holds(clear(Y),do(pickup(X),State)) ) )),
          ( ( holds(clear(Y),do(pickup(X),State))
            | ~ holds(on(X,Y),State)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State) )
        <=> ( ~ holds(clear(X),State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State))
            | ~ holds(empty,State) ) )),
        rewrite(( ( ~ holds(clear(X),State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State))
            | ~ holds(empty,State) )
        <=> ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) ) )),
        ( ( holds(clear(Y),do(pickup(X),State))
          | ~ holds(on(X,Y),State)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State) )
      <=> ( ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | ~ holds(on(X,Y),State)
          | holds(clear(Y),do(pickup(X),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(31,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( holds(clear(Y),do(pickup(X),State))
        | ~ holds(on(X,Y),State)
        | ~ holds(clear(X),State)
        | ~ holds(empty,State) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | ~ holds(on(X,Y),State)
        | holds(clear(Y),do(pickup(X),State)) ) ),
    inference(quant_intro,[status(thm)],[30]) ).

tff(32,axiom,
    ! [Y: $i,State: $i,X: $i] :
      ( holds(clear(Y),do(pickup(X),State))
      | ~ holds(on(X,Y),State)
      | ~ holds(clear(X),State)
      | ~ holds(empty,State) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-0.ax',pickup_2) ).

tff(33,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | ~ holds(on(X,Y),State)
      | holds(clear(Y),do(pickup(X),State)) ),
    inference(modus_ponens,[status(thm)],[32,31]) ).

tff(34,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | ~ holds(on(X,Y),State)
      | holds(clear(Y),do(pickup(X),State)) ),
    inference(modus_ponens,[status(thm)],[33,29]) ).

tff(35,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | ~ holds(on(X,Y),State)
      | holds(clear(Y),do(pickup(X),State)) ),
    inference(skolemize,[status(sab)],[34]) ).

tff(36,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | ~ holds(on(X,Y),State)
      | holds(clear(Y),do(pickup(X),State)) ),
    inference(modus_ponens,[status(thm)],[35,28]) ).

tff(37,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(38,plain,
    ( ( ~ holds(clear(c),s0)
      | ~ holds(empty,s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) )
  <=> ( ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(39,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(clear(c),s0)
      | ~ holds(empty,s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) ) ),
    inference(monotonicity,[status(thm)],[38]) ).

tff(40,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(clear(c),s0)
      | ~ holds(empty,s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ holds(on(c,d),s0)
      | holds(clear(d),do(pickup(c),s0)) ) ),
    inference(transitivity,[status(thm)],[39,37]) ).

tff(41,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | ~ holds(on(X,Y),State)
          | holds(clear(Y),do(pickup(X),State)) )
    | ~ holds(clear(c),s0)
    | ~ holds(empty,s0)
    | ~ holds(on(c,d),s0)
    | holds(clear(d),do(pickup(c),s0)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(42,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | ~ holds(on(X,Y),State)
          | holds(clear(Y),do(pickup(X),State)) )
    | ~ holds(empty,s0)
    | ~ holds(clear(c),s0)
    | ~ holds(on(c,d),s0)
    | holds(clear(d),do(pickup(c),s0)) ),
    inference(modus_ponens,[status(thm)],[41,40]) ).

tff(43,plain,
    holds(clear(d),do(pickup(c),s0)),
    inference(unit_resolution,[status(thm)],[42,36,26,23,20]) ).

tff(44,plain,
    ^ [Z: $i,Y: $i,State: $i,X: $i] :
      refl(( ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
      <=> ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(45,plain,
    ( ! [Z: $i,Y: $i,State: $i,X: $i] :
        ( ~ differ(Z,Y)
        | ~ holds(clear(Z),State)
        | holds(clear(Z),do(putdown(X,Y),State)) )
  <=> ! [Z: $i,Y: $i,State: $i,X: $i] :
        ( ~ differ(Z,Y)
        | ~ holds(clear(Z),State)
        | holds(clear(Z),do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[44]) ).

tff(46,plain,
    ( ! [Z: $i,Y: $i,State: $i,X: $i] :
        ( ~ differ(Z,Y)
        | ~ holds(clear(Z),State)
        | holds(clear(Z),do(putdown(X,Y),State)) )
  <=> ! [Z: $i,Y: $i,State: $i,X: $i] :
        ( ~ differ(Z,Y)
        | ~ holds(clear(Z),State)
        | holds(clear(Z),do(putdown(X,Y),State)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(47,plain,
    ^ [Z: $i,Y: $i,State: $i,X: $i] :
      trans(monotonicity(rewrite(( ( holds(clear(Z),do(putdown(X,Y),State))
              | ~ holds(clear(Z),State) )
          <=> ( ~ holds(clear(Z),State)
              | holds(clear(Z),do(putdown(X,Y),State)) ) )),
          ( ( holds(clear(Z),do(putdown(X,Y),State))
            | ~ holds(clear(Z),State)
            | ~ differ(Z,Y) )
        <=> ( ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State))
            | ~ differ(Z,Y) ) )),
        rewrite(( ( ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State))
            | ~ differ(Z,Y) )
        <=> ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) ) )),
        ( ( holds(clear(Z),do(putdown(X,Y),State))
          | ~ holds(clear(Z),State)
          | ~ differ(Z,Y) )
      <=> ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(48,plain,
    ( ! [Z: $i,Y: $i,State: $i,X: $i] :
        ( holds(clear(Z),do(putdown(X,Y),State))
        | ~ holds(clear(Z),State)
        | ~ differ(Z,Y) )
  <=> ! [Z: $i,Y: $i,State: $i,X: $i] :
        ( ~ differ(Z,Y)
        | ~ holds(clear(Z),State)
        | holds(clear(Z),do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[47]) ).

tff(49,axiom,
    ! [Z: $i,Y: $i,State: $i,X: $i] :
      ( holds(clear(Z),do(putdown(X,Y),State))
      | ~ holds(clear(Z),State)
      | ~ differ(Z,Y) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-0.ax',putdown_5) ).

tff(50,plain,
    ! [Z: $i,Y: $i,State: $i,X: $i] :
      ( ~ differ(Z,Y)
      | ~ holds(clear(Z),State)
      | holds(clear(Z),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[49,48]) ).

tff(51,plain,
    ! [Z: $i,Y: $i,State: $i,X: $i] :
      ( ~ differ(Z,Y)
      | ~ holds(clear(Z),State)
      | holds(clear(Z),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[50,46]) ).

tff(52,plain,
    ! [Z: $i,Y: $i,State: $i,X: $i] :
      ( ~ differ(Z,Y)
      | ~ holds(clear(Z),State)
      | holds(clear(Z),do(putdown(X,Y),State)) ),
    inference(skolemize,[status(sab)],[51]) ).

tff(53,plain,
    ! [Z: $i,Y: $i,State: $i,X: $i] :
      ( ~ differ(Z,Y)
      | ~ holds(clear(Z),State)
      | holds(clear(Z),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[52,45]) ).

tff(54,plain,
    ( ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(d,a)
      | ~ holds(clear(d),do(pickup(c),s0))
      | holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(d,a)
      | ~ holds(clear(d),do(pickup(c),s0))
      | holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(55,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(d,a)
    | ~ holds(clear(d),do(pickup(c),s0))
    | holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(56,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(d,a)
    | ~ holds(clear(d),do(pickup(c),s0))
    | holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[55,54]) ).

tff(57,plain,
    holds(clear(d),do(putdown(c,a),do(pickup(c),s0))),
    inference(unit_resolution,[status(thm)],[56,53,43,17]) ).

tff(58,plain,
    ( differ(c,d)
  <=> differ(c,d) ),
    inference(rewrite,[status(thm)],[]) ).

tff(59,axiom,
    differ(c,d),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_c_d) ).

tff(60,plain,
    differ(c,d),
    inference(modus_ponens,[status(thm)],[59,58]) ).

tff(61,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(c,d)
      | differ(d,c) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(c,d)
      | differ(d,c) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(62,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(c,d)
    | differ(d,c) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(63,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(c,d)
    | differ(d,c) ),
    inference(modus_ponens,[status(thm)],[62,61]) ).

tff(64,plain,
    differ(d,c),
    inference(unit_resolution,[status(thm)],[63,13,60]) ).

tff(65,plain,
    ^ [Z: $i,State: $i,X: $i] :
      refl(( ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
      <=> ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(66,plain,
    ( ! [Z: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ differ(X,Z)
        | holds(clear(X),do(pickup(Z),State)) )
  <=> ! [Z: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ differ(X,Z)
        | holds(clear(X),do(pickup(Z),State)) ) ),
    inference(quant_intro,[status(thm)],[65]) ).

tff(67,plain,
    ( ! [Z: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ differ(X,Z)
        | holds(clear(X),do(pickup(Z),State)) )
  <=> ! [Z: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ differ(X,Z)
        | holds(clear(X),do(pickup(Z),State)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(68,plain,
    ^ [Z: $i,State: $i,X: $i] :
      trans(monotonicity(rewrite(( ( holds(clear(X),do(pickup(Z),State))
              | ~ holds(clear(X),State) )
          <=> ( ~ holds(clear(X),State)
              | holds(clear(X),do(pickup(Z),State)) ) )),
          ( ( holds(clear(X),do(pickup(Z),State))
            | ~ holds(clear(X),State)
            | ~ differ(X,Z) )
        <=> ( ~ holds(clear(X),State)
            | holds(clear(X),do(pickup(Z),State))
            | ~ differ(X,Z) ) )),
        rewrite(( ( ~ holds(clear(X),State)
            | holds(clear(X),do(pickup(Z),State))
            | ~ differ(X,Z) )
        <=> ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) ) )),
        ( ( holds(clear(X),do(pickup(Z),State))
          | ~ holds(clear(X),State)
          | ~ differ(X,Z) )
      <=> ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(69,plain,
    ( ! [Z: $i,State: $i,X: $i] :
        ( holds(clear(X),do(pickup(Z),State))
        | ~ holds(clear(X),State)
        | ~ differ(X,Z) )
  <=> ! [Z: $i,State: $i,X: $i] :
        ( ~ holds(clear(X),State)
        | ~ differ(X,Z)
        | holds(clear(X),do(pickup(Z),State)) ) ),
    inference(quant_intro,[status(thm)],[68]) ).

tff(70,axiom,
    ! [Z: $i,State: $i,X: $i] :
      ( holds(clear(X),do(pickup(Z),State))
      | ~ holds(clear(X),State)
      | ~ differ(X,Z) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-0.ax',pickup_4) ).

tff(71,plain,
    ! [Z: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ differ(X,Z)
      | holds(clear(X),do(pickup(Z),State)) ),
    inference(modus_ponens,[status(thm)],[70,69]) ).

tff(72,plain,
    ! [Z: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ differ(X,Z)
      | holds(clear(X),do(pickup(Z),State)) ),
    inference(modus_ponens,[status(thm)],[71,67]) ).

tff(73,plain,
    ! [Z: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ differ(X,Z)
      | holds(clear(X),do(pickup(Z),State)) ),
    inference(skolemize,[status(sab)],[72]) ).

tff(74,plain,
    ! [Z: $i,State: $i,X: $i] :
      ( ~ holds(clear(X),State)
      | ~ differ(X,Z)
      | holds(clear(X),do(pickup(Z),State)) ),
    inference(modus_ponens,[status(thm)],[73,66]) ).

tff(75,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(76,plain,
    ( ( ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0)))
      | ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(77,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0)))
      | ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(monotonicity,[status(thm)],[76]) ).

tff(78,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0)))
      | ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,c)
      | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(transitivity,[status(thm)],[77,75]) ).

tff(79,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0)))
    | ~ differ(d,c)
    | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(80,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ differ(d,c)
    | holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | ~ holds(clear(d),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[79,78]) ).

tff(81,plain,
    holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))),
    inference(unit_resolution,[status(thm)],[80,74,64,57]) ).

tff(82,plain,
    ( differ(b,d)
  <=> differ(b,d) ),
    inference(rewrite,[status(thm)],[]) ).

tff(83,axiom,
    differ(b,d),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_b_d) ).

tff(84,plain,
    differ(b,d),
    inference(modus_ponens,[status(thm)],[83,82]) ).

tff(85,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(b,d)
      | differ(d,b) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(b,d)
      | differ(d,b) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(86,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(b,d)
    | differ(d,b) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(87,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(b,d)
    | differ(d,b) ),
    inference(modus_ponens,[status(thm)],[86,85]) ).

tff(88,plain,
    differ(d,b),
    inference(unit_resolution,[status(thm)],[87,13,84]) ).

tff(89,plain,
    ( ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(d,b)
      | ~ holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) )
  <=> ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(d,b)
      | ~ holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(90,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(d,b)
    | ~ holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(91,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(d,b)
    | ~ holds(clear(d),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ),
    inference(modus_ponens,[status(thm)],[90,89]) ).

tff(92,plain,
    holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))),
    inference(unit_resolution,[status(thm)],[91,53,88,81]) ).

tff(93,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,a)
      | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,a)
      | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(94,plain,
    ( ( ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ differ(d,a)
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ differ(d,a)
      | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(95,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ differ(d,a)
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,a)
      | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(monotonicity,[status(thm)],[94]) ).

tff(96,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ differ(d,a)
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(d,a)
      | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(transitivity,[status(thm)],[95,93]) ).

tff(97,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
    | ~ differ(d,a)
    | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(98,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ differ(d,a)
    | ~ holds(clear(d),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
    | holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ),
    inference(modus_ponens,[status(thm)],[97,96]) ).

tff(99,plain,
    holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))),
    inference(unit_resolution,[status(thm)],[98,74,17,92]) ).

tff(100,plain,
    ( holds(clear(a),s0)
  <=> holds(clear(a),s0) ),
    inference(rewrite,[status(thm)],[]) ).

tff(101,axiom,
    holds(clear(a),s0),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',initial_state5) ).

tff(102,plain,
    holds(clear(a),s0),
    inference(modus_ponens,[status(thm)],[101,100]) ).

tff(103,plain,
    ( differ(a,c)
  <=> differ(a,c) ),
    inference(rewrite,[status(thm)],[]) ).

tff(104,axiom,
    differ(a,c),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_a_c) ).

tff(105,plain,
    differ(a,c),
    inference(modus_ponens,[status(thm)],[104,103]) ).

tff(106,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(a),s0)
      | ~ differ(a,c)
      | holds(clear(a),do(pickup(c),s0)) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(a),s0)
      | ~ differ(a,c)
      | holds(clear(a),do(pickup(c),s0)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(107,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ holds(clear(a),s0)
    | ~ differ(a,c)
    | holds(clear(a),do(pickup(c),s0)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(108,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ holds(clear(a),s0)
    | ~ differ(a,c)
    | holds(clear(a),do(pickup(c),s0)) ),
    inference(modus_ponens,[status(thm)],[107,106]) ).

tff(109,plain,
    holds(clear(a),do(pickup(c),s0)),
    inference(unit_resolution,[status(thm)],[108,74,105,102]) ).

tff(110,plain,
    ( differ(c,table)
  <=> differ(c,table) ),
    inference(rewrite,[status(thm)],[]) ).

tff(111,axiom,
    differ(c,table),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_c_table) ).

tff(112,plain,
    differ(c,table),
    inference(modus_ponens,[status(thm)],[111,110]) ).

tff(113,plain,
    ^ [State: $i,X: $i] :
      refl(( ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) )
      <=> ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(114,plain,
    ( ! [State: $i,X: $i] :
        ( ~ differ(X,table)
        | ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | holds(holding(X),do(pickup(X),State)) )
  <=> ! [State: $i,X: $i] :
        ( ~ differ(X,table)
        | ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | holds(holding(X),do(pickup(X),State)) ) ),
    inference(quant_intro,[status(thm)],[113]) ).

tff(115,plain,
    ( ! [State: $i,X: $i] :
        ( ~ differ(X,table)
        | ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | holds(holding(X),do(pickup(X),State)) )
  <=> ! [State: $i,X: $i] :
        ( ~ differ(X,table)
        | ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | holds(holding(X),do(pickup(X),State)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(116,plain,
    ^ [State: $i,X: $i] :
      trans(monotonicity(trans(monotonicity(rewrite(( ( holds(holding(X),do(pickup(X),State))
                  | ~ holds(empty,State) )
              <=> ( ~ holds(empty,State)
                  | holds(holding(X),do(pickup(X),State)) ) )),
              ( ( holds(holding(X),do(pickup(X),State))
                | ~ holds(empty,State)
                | ~ holds(clear(X),State) )
            <=> ( ~ holds(empty,State)
                | holds(holding(X),do(pickup(X),State))
                | ~ holds(clear(X),State) ) )),
            rewrite(( ( ~ holds(empty,State)
                | holds(holding(X),do(pickup(X),State))
                | ~ holds(clear(X),State) )
            <=> ( ~ holds(clear(X),State)
                | ~ holds(empty,State)
                | holds(holding(X),do(pickup(X),State)) ) )),
            ( ( holds(holding(X),do(pickup(X),State))
              | ~ holds(empty,State)
              | ~ holds(clear(X),State) )
          <=> ( ~ holds(clear(X),State)
              | ~ holds(empty,State)
              | holds(holding(X),do(pickup(X),State)) ) )),
          ( ( holds(holding(X),do(pickup(X),State))
            | ~ holds(empty,State)
            | ~ holds(clear(X),State)
            | ~ differ(X,table) )
        <=> ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State))
            | ~ differ(X,table) ) )),
        rewrite(( ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State))
            | ~ differ(X,table) )
        <=> ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) ) )),
        ( ( holds(holding(X),do(pickup(X),State))
          | ~ holds(empty,State)
          | ~ holds(clear(X),State)
          | ~ differ(X,table) )
      <=> ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(117,plain,
    ( ! [State: $i,X: $i] :
        ( holds(holding(X),do(pickup(X),State))
        | ~ holds(empty,State)
        | ~ holds(clear(X),State)
        | ~ differ(X,table) )
  <=> ! [State: $i,X: $i] :
        ( ~ differ(X,table)
        | ~ holds(clear(X),State)
        | ~ holds(empty,State)
        | holds(holding(X),do(pickup(X),State)) ) ),
    inference(quant_intro,[status(thm)],[116]) ).

tff(118,axiom,
    ! [State: $i,X: $i] :
      ( holds(holding(X),do(pickup(X),State))
      | ~ holds(empty,State)
      | ~ holds(clear(X),State)
      | ~ differ(X,table) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-0.ax',pickup_1) ).

tff(119,plain,
    ! [State: $i,X: $i] :
      ( ~ differ(X,table)
      | ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | holds(holding(X),do(pickup(X),State)) ),
    inference(modus_ponens,[status(thm)],[118,117]) ).

tff(120,plain,
    ! [State: $i,X: $i] :
      ( ~ differ(X,table)
      | ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | holds(holding(X),do(pickup(X),State)) ),
    inference(modus_ponens,[status(thm)],[119,115]) ).

tff(121,plain,
    ! [State: $i,X: $i] :
      ( ~ differ(X,table)
      | ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | holds(holding(X),do(pickup(X),State)) ),
    inference(skolemize,[status(sab)],[120]) ).

tff(122,plain,
    ! [State: $i,X: $i] :
      ( ~ differ(X,table)
      | ~ holds(clear(X),State)
      | ~ holds(empty,State)
      | holds(holding(X),do(pickup(X),State)) ),
    inference(modus_ponens,[status(thm)],[121,114]) ).

tff(123,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),s0)) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),s0)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(124,plain,
    ( ( ~ differ(c,table)
      | ~ holds(clear(c),s0)
      | ~ holds(empty,s0)
      | holds(holding(c),do(pickup(c),s0)) )
  <=> ( ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),s0)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(125,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | ~ holds(clear(c),s0)
      | ~ holds(empty,s0)
      | holds(holding(c),do(pickup(c),s0)) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),s0)) ) ),
    inference(monotonicity,[status(thm)],[124]) ).

tff(126,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | ~ holds(clear(c),s0)
      | ~ holds(empty,s0)
      | holds(holding(c),do(pickup(c),s0)) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ holds(empty,s0)
      | ~ holds(clear(c),s0)
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),s0)) ) ),
    inference(transitivity,[status(thm)],[125,123]) ).

tff(127,plain,
    ( ~ ! [State: $i,X: $i] :
          ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) )
    | ~ differ(c,table)
    | ~ holds(clear(c),s0)
    | ~ holds(empty,s0)
    | holds(holding(c),do(pickup(c),s0)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(128,plain,
    ( ~ ! [State: $i,X: $i] :
          ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) )
    | ~ holds(empty,s0)
    | ~ holds(clear(c),s0)
    | ~ differ(c,table)
    | holds(holding(c),do(pickup(c),s0)) ),
    inference(modus_ponens,[status(thm)],[127,126]) ).

tff(129,plain,
    holds(holding(c),do(pickup(c),s0)),
    inference(unit_resolution,[status(thm)],[128,122,112,23,20]) ).

tff(130,plain,
    ^ [Y: $i,State: $i,X: $i] :
      refl(( ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(on(X,Y),do(putdown(X,Y),State)) )
      <=> ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(on(X,Y),do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(131,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(on(X,Y),do(putdown(X,Y),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(on(X,Y),do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[130]) ).

tff(132,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(on(X,Y),do(putdown(X,Y),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(on(X,Y),do(putdown(X,Y),State)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(133,plain,
    ^ [Y: $i,State: $i,X: $i] :
      trans(monotonicity(rewrite(( ( holds(on(X,Y),do(putdown(X,Y),State))
              | ~ holds(holding(X),State) )
          <=> ( ~ holds(holding(X),State)
              | holds(on(X,Y),do(putdown(X,Y),State)) ) )),
          ( ( holds(on(X,Y),do(putdown(X,Y),State))
            | ~ holds(holding(X),State)
            | ~ holds(clear(Y),State) )
        <=> ( ~ holds(holding(X),State)
            | holds(on(X,Y),do(putdown(X,Y),State))
            | ~ holds(clear(Y),State) ) )),
        rewrite(( ( ~ holds(holding(X),State)
            | holds(on(X,Y),do(putdown(X,Y),State))
            | ~ holds(clear(Y),State) )
        <=> ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(on(X,Y),do(putdown(X,Y),State)) ) )),
        ( ( holds(on(X,Y),do(putdown(X,Y),State))
          | ~ holds(holding(X),State)
          | ~ holds(clear(Y),State) )
      <=> ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(on(X,Y),do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(134,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( holds(on(X,Y),do(putdown(X,Y),State))
        | ~ holds(holding(X),State)
        | ~ holds(clear(Y),State) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(on(X,Y),do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[133]) ).

tff(135,axiom,
    ! [Y: $i,State: $i,X: $i] :
      ( holds(on(X,Y),do(putdown(X,Y),State))
      | ~ holds(holding(X),State)
      | ~ holds(clear(Y),State) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-0.ax',putdown_2) ).

tff(136,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(on(X,Y),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[135,134]) ).

tff(137,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(on(X,Y),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[136,132]) ).

tff(138,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(on(X,Y),do(putdown(X,Y),State)) ),
    inference(skolemize,[status(sab)],[137]) ).

tff(139,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(on(X,Y),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[138,131]) ).

tff(140,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(on(X,Y),do(putdown(X,Y),State)) )
      | ~ holds(clear(a),do(pickup(c),s0))
      | ~ holds(holding(c),do(pickup(c),s0))
      | holds(on(c,a),do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(on(X,Y),do(putdown(X,Y),State)) )
      | ~ holds(clear(a),do(pickup(c),s0))
      | ~ holds(holding(c),do(pickup(c),s0))
      | holds(on(c,a),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(141,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(on(X,Y),do(putdown(X,Y),State)) )
    | ~ holds(clear(a),do(pickup(c),s0))
    | ~ holds(holding(c),do(pickup(c),s0))
    | holds(on(c,a),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(142,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(on(X,Y),do(putdown(X,Y),State)) )
    | ~ holds(clear(a),do(pickup(c),s0))
    | ~ holds(holding(c),do(pickup(c),s0))
    | holds(on(c,a),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[141,140]) ).

tff(143,plain,
    holds(on(c,a),do(putdown(c,a),do(pickup(c),s0))),
    inference(unit_resolution,[status(thm)],[142,139,129,109]) ).

tff(144,plain,
    ^ [Y: $i,State: $i,X: $i] :
      refl(( ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(clear(X),do(putdown(X,Y),State)) )
      <=> ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(clear(X),do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(145,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(clear(X),do(putdown(X,Y),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(clear(X),do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[144]) ).

tff(146,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(clear(X),do(putdown(X,Y),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(clear(X),do(putdown(X,Y),State)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(147,plain,
    ^ [Y: $i,State: $i,X: $i] :
      trans(monotonicity(rewrite(( ( holds(clear(X),do(putdown(X,Y),State))
              | ~ holds(holding(X),State) )
          <=> ( ~ holds(holding(X),State)
              | holds(clear(X),do(putdown(X,Y),State)) ) )),
          ( ( holds(clear(X),do(putdown(X,Y),State))
            | ~ holds(holding(X),State)
            | ~ holds(clear(Y),State) )
        <=> ( ~ holds(holding(X),State)
            | holds(clear(X),do(putdown(X,Y),State))
            | ~ holds(clear(Y),State) ) )),
        rewrite(( ( ~ holds(holding(X),State)
            | holds(clear(X),do(putdown(X,Y),State))
            | ~ holds(clear(Y),State) )
        <=> ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(clear(X),do(putdown(X,Y),State)) ) )),
        ( ( holds(clear(X),do(putdown(X,Y),State))
          | ~ holds(holding(X),State)
          | ~ holds(clear(Y),State) )
      <=> ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(clear(X),do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(148,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( holds(clear(X),do(putdown(X,Y),State))
        | ~ holds(holding(X),State)
        | ~ holds(clear(Y),State) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(clear(X),do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[147]) ).

tff(149,axiom,
    ! [Y: $i,State: $i,X: $i] :
      ( holds(clear(X),do(putdown(X,Y),State))
      | ~ holds(holding(X),State)
      | ~ holds(clear(Y),State) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-0.ax',putdown_3) ).

tff(150,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(clear(X),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[149,148]) ).

tff(151,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(clear(X),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[150,146]) ).

tff(152,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(clear(X),do(putdown(X,Y),State)) ),
    inference(skolemize,[status(sab)],[151]) ).

tff(153,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(clear(X),do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[152,145]) ).

tff(154,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(clear(X),do(putdown(X,Y),State)) )
      | ~ holds(clear(a),do(pickup(c),s0))
      | ~ holds(holding(c),do(pickup(c),s0))
      | holds(clear(c),do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(clear(X),do(putdown(X,Y),State)) )
      | ~ holds(clear(a),do(pickup(c),s0))
      | ~ holds(holding(c),do(pickup(c),s0))
      | holds(clear(c),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(155,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(clear(X),do(putdown(X,Y),State)) )
    | ~ holds(clear(a),do(pickup(c),s0))
    | ~ holds(holding(c),do(pickup(c),s0))
    | holds(clear(c),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(156,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(clear(X),do(putdown(X,Y),State)) )
    | ~ holds(clear(a),do(pickup(c),s0))
    | ~ holds(holding(c),do(pickup(c),s0))
    | holds(clear(c),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[155,154]) ).

tff(157,plain,
    holds(clear(c),do(putdown(c,a),do(pickup(c),s0))),
    inference(unit_resolution,[status(thm)],[156,153,129,109]) ).

tff(158,plain,
    ^ [Y: $i,State: $i,X: $i] :
      refl(( ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(empty,do(putdown(X,Y),State)) )
      <=> ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(empty,do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(159,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(empty,do(putdown(X,Y),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(empty,do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[158]) ).

tff(160,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(empty,do(putdown(X,Y),State)) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(empty,do(putdown(X,Y),State)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(161,plain,
    ^ [Y: $i,State: $i,X: $i] :
      trans(monotonicity(rewrite(( ( holds(empty,do(putdown(X,Y),State))
              | ~ holds(holding(X),State) )
          <=> ( ~ holds(holding(X),State)
              | holds(empty,do(putdown(X,Y),State)) ) )),
          ( ( holds(empty,do(putdown(X,Y),State))
            | ~ holds(holding(X),State)
            | ~ holds(clear(Y),State) )
        <=> ( ~ holds(holding(X),State)
            | holds(empty,do(putdown(X,Y),State))
            | ~ holds(clear(Y),State) ) )),
        rewrite(( ( ~ holds(holding(X),State)
            | holds(empty,do(putdown(X,Y),State))
            | ~ holds(clear(Y),State) )
        <=> ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(empty,do(putdown(X,Y),State)) ) )),
        ( ( holds(empty,do(putdown(X,Y),State))
          | ~ holds(holding(X),State)
          | ~ holds(clear(Y),State) )
      <=> ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(empty,do(putdown(X,Y),State)) ) )),
    inference(bind,[status(th)],[]) ).

tff(162,plain,
    ( ! [Y: $i,State: $i,X: $i] :
        ( holds(empty,do(putdown(X,Y),State))
        | ~ holds(holding(X),State)
        | ~ holds(clear(Y),State) )
  <=> ! [Y: $i,State: $i,X: $i] :
        ( ~ holds(clear(Y),State)
        | ~ holds(holding(X),State)
        | holds(empty,do(putdown(X,Y),State)) ) ),
    inference(quant_intro,[status(thm)],[161]) ).

tff(163,axiom,
    ! [Y: $i,State: $i,X: $i] :
      ( holds(empty,do(putdown(X,Y),State))
      | ~ holds(holding(X),State)
      | ~ holds(clear(Y),State) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-0.ax',putdown_1) ).

tff(164,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(empty,do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[163,162]) ).

tff(165,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(empty,do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[164,160]) ).

tff(166,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(empty,do(putdown(X,Y),State)) ),
    inference(skolemize,[status(sab)],[165]) ).

tff(167,plain,
    ! [Y: $i,State: $i,X: $i] :
      ( ~ holds(clear(Y),State)
      | ~ holds(holding(X),State)
      | holds(empty,do(putdown(X,Y),State)) ),
    inference(modus_ponens,[status(thm)],[166,159]) ).

tff(168,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(empty,do(putdown(X,Y),State)) )
      | ~ holds(clear(a),do(pickup(c),s0))
      | ~ holds(holding(c),do(pickup(c),s0))
      | holds(empty,do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(empty,do(putdown(X,Y),State)) )
      | ~ holds(clear(a),do(pickup(c),s0))
      | ~ holds(holding(c),do(pickup(c),s0))
      | holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(169,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(empty,do(putdown(X,Y),State)) )
    | ~ holds(clear(a),do(pickup(c),s0))
    | ~ holds(holding(c),do(pickup(c),s0))
    | holds(empty,do(putdown(c,a),do(pickup(c),s0))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(170,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(empty,do(putdown(X,Y),State)) )
    | ~ holds(clear(a),do(pickup(c),s0))
    | ~ holds(holding(c),do(pickup(c),s0))
    | holds(empty,do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[169,168]) ).

tff(171,plain,
    holds(empty,do(putdown(c,a),do(pickup(c),s0))),
    inference(unit_resolution,[status(thm)],[170,167,129,109]) ).

tff(172,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(173,plain,
    ( ( ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(174,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(monotonicity,[status(thm)],[173]) ).

tff(175,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | ~ holds(on(X,Y),State)
            | holds(clear(Y),do(pickup(X),State)) )
      | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
      | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(transitivity,[status(thm)],[174,172]) ).

tff(176,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | ~ holds(on(X,Y),State)
          | holds(clear(Y),do(pickup(X),State)) )
    | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
    | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
    | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
    | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(177,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | ~ holds(on(X,Y),State)
          | holds(clear(Y),do(pickup(X),State)) )
    | ~ holds(on(c,a),do(putdown(c,a),do(pickup(c),s0)))
    | holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
    | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[176,175]) ).

tff(178,plain,
    holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))),
    inference(unit_resolution,[status(thm)],[177,36,171,157,143]) ).

tff(179,plain,
    ( differ(a,b)
  <=> differ(a,b) ),
    inference(rewrite,[status(thm)],[]) ).

tff(180,axiom,
    differ(a,b),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_a_b) ).

tff(181,plain,
    differ(a,b),
    inference(modus_ponens,[status(thm)],[180,179]) ).

tff(182,plain,
    ( ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(a,b)
      | ~ holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) )
  <=> ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(a,b)
      | ~ holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(183,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(a,b)
    | ~ holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(184,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(a,b)
    | ~ holds(clear(a),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ),
    inference(modus_ponens,[status(thm)],[183,182]) ).

tff(185,plain,
    holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))),
    inference(unit_resolution,[status(thm)],[184,53,181,178]) ).

tff(186,plain,
    ( holds(clear(b),s0)
  <=> holds(clear(b),s0) ),
    inference(rewrite,[status(thm)],[]) ).

tff(187,axiom,
    holds(clear(b),s0),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',initial_state6) ).

tff(188,plain,
    holds(clear(b),s0),
    inference(modus_ponens,[status(thm)],[187,186]) ).

tff(189,plain,
    ( differ(b,c)
  <=> differ(b,c) ),
    inference(rewrite,[status(thm)],[]) ).

tff(190,axiom,
    differ(b,c),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_b_c) ).

tff(191,plain,
    differ(b,c),
    inference(modus_ponens,[status(thm)],[190,189]) ).

tff(192,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(b),s0)
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),s0)) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(b),s0)
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),s0)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(193,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ holds(clear(b),s0)
    | ~ differ(b,c)
    | holds(clear(b),do(pickup(c),s0)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(194,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ holds(clear(b),s0)
    | ~ differ(b,c)
    | holds(clear(b),do(pickup(c),s0)) ),
    inference(modus_ponens,[status(thm)],[193,192]) ).

tff(195,plain,
    holds(clear(b),do(pickup(c),s0)),
    inference(unit_resolution,[status(thm)],[194,74,191,188]) ).

tff(196,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(a,b)
      | differ(b,a) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ differ(Y,X)
            | differ(X,Y) )
      | ~ differ(a,b)
      | differ(b,a) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(197,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(a,b)
    | differ(b,a) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(198,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ differ(Y,X)
          | differ(X,Y) )
    | ~ differ(a,b)
    | differ(b,a) ),
    inference(modus_ponens,[status(thm)],[197,196]) ).

tff(199,plain,
    differ(b,a),
    inference(unit_resolution,[status(thm)],[198,13,181]) ).

tff(200,plain,
    ( ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(b,a)
      | ~ holds(clear(b),do(pickup(c),s0))
      | holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
            ( ~ differ(Z,Y)
            | ~ holds(clear(Z),State)
            | holds(clear(Z),do(putdown(X,Y),State)) )
      | ~ differ(b,a)
      | ~ holds(clear(b),do(pickup(c),s0))
      | holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(201,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(b,a)
    | ~ holds(clear(b),do(pickup(c),s0))
    | holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(202,plain,
    ( ~ ! [Z: $i,Y: $i,State: $i,X: $i] :
          ( ~ differ(Z,Y)
          | ~ holds(clear(Z),State)
          | holds(clear(Z),do(putdown(X,Y),State)) )
    | ~ differ(b,a)
    | ~ holds(clear(b),do(pickup(c),s0))
    | holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[201,200]) ).

tff(203,plain,
    holds(clear(b),do(putdown(c,a),do(pickup(c),s0))),
    inference(unit_resolution,[status(thm)],[202,53,199,195]) ).

tff(204,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(205,plain,
    ( ( ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0)))
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(206,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0)))
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(monotonicity,[status(thm)],[205]) ).

tff(207,plain,
    ( ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0)))
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [Z: $i,State: $i,X: $i] :
            ( ~ holds(clear(X),State)
            | ~ differ(X,Z)
            | holds(clear(X),do(pickup(Z),State)) )
      | ~ differ(b,c)
      | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(transitivity,[status(thm)],[206,204]) ).

tff(208,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0)))
    | ~ differ(b,c)
    | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(209,plain,
    ( ~ ! [Z: $i,State: $i,X: $i] :
          ( ~ holds(clear(X),State)
          | ~ differ(X,Z)
          | holds(clear(X),do(pickup(Z),State)) )
    | ~ differ(b,c)
    | holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | ~ holds(clear(b),do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[208,207]) ).

tff(210,plain,
    holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))),
    inference(unit_resolution,[status(thm)],[209,74,191,203]) ).

tff(211,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(212,plain,
    ( ( ~ differ(c,table)
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ differ(c,table)
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(213,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(monotonicity,[status(thm)],[212]) ).

tff(214,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(c,table)
      | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
      | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ) ),
    inference(transitivity,[status(thm)],[213,211]) ).

tff(215,plain,
    ( ~ ! [State: $i,X: $i] :
          ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) )
    | ~ differ(c,table)
    | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
    | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0)))
    | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(216,plain,
    ( ~ ! [State: $i,X: $i] :
          ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) )
    | ~ differ(c,table)
    | holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | ~ holds(clear(c),do(putdown(c,a),do(pickup(c),s0)))
    | ~ holds(empty,do(putdown(c,a),do(pickup(c),s0))) ),
    inference(modus_ponens,[status(thm)],[215,214]) ).

tff(217,plain,
    holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))),
    inference(unit_resolution,[status(thm)],[216,122,112,171,157]) ).

tff(218,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(empty,do(putdown(X,Y),State)) )
      | ~ holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(empty,do(putdown(X,Y),State)) )
      | ~ holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | ~ holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
      | holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(219,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(empty,do(putdown(X,Y),State)) )
    | ~ holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | ~ holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(220,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(empty,do(putdown(X,Y),State)) )
    | ~ holds(clear(b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | ~ holds(holding(c),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))
    | holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))) ),
    inference(modus_ponens,[status(thm)],[219,218]) ).

tff(221,plain,
    holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))),
    inference(unit_resolution,[status(thm)],[220,167,217,210]) ).

tff(222,plain,
    ( differ(a,table)
  <=> differ(a,table) ),
    inference(rewrite,[status(thm)],[]) ).

tff(223,axiom,
    differ(a,table),
    file('/export/starexec/sandbox2/benchmark/Axioms/PLA001-1.ax',differ_a_table) ).

tff(224,plain,
    differ(a,table),
    inference(modus_ponens,[status(thm)],[223,222]) ).

tff(225,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(a,table)
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(a,table)
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(226,plain,
    ( ( ~ differ(a,table)
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ differ(a,table)
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(227,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(a,table)
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(a,table)
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(monotonicity,[status(thm)],[226]) ).

tff(228,plain,
    ( ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(a,table)
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) )
  <=> ( ~ ! [State: $i,X: $i] :
            ( ~ differ(X,table)
            | ~ holds(clear(X),State)
            | ~ holds(empty,State)
            | holds(holding(X),do(pickup(X),State)) )
      | ~ differ(a,table)
      | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
      | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ) ),
    inference(transitivity,[status(thm)],[227,225]) ).

tff(229,plain,
    ( ~ ! [State: $i,X: $i] :
          ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) )
    | ~ differ(a,table)
    | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
    | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
    | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(230,plain,
    ( ~ ! [State: $i,X: $i] :
          ( ~ differ(X,table)
          | ~ holds(clear(X),State)
          | ~ holds(empty,State)
          | holds(holding(X),do(pickup(X),State)) )
    | ~ differ(a,table)
    | ~ holds(empty,do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
    | ~ holds(clear(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))
    | holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))) ),
    inference(modus_ponens,[status(thm)],[229,228]) ).

tff(231,plain,
    holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0)))))),
    inference(unit_resolution,[status(thm)],[230,122,224,221,185]) ).

tff(232,plain,
    ( ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(on(X,Y),do(putdown(X,Y),State)) )
      | ~ holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
      | ~ holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
      | holds(on(a,d),do(putdown(a,d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))) )
  <=> ( ~ ! [Y: $i,State: $i,X: $i] :
            ( ~ holds(clear(Y),State)
            | ~ holds(holding(X),State)
            | holds(on(X,Y),do(putdown(X,Y),State)) )
      | ~ holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
      | ~ holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
      | holds(on(a,d),do(putdown(a,d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(233,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(on(X,Y),do(putdown(X,Y),State)) )
    | ~ holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
    | ~ holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
    | holds(on(a,d),do(putdown(a,d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(234,plain,
    ( ~ ! [Y: $i,State: $i,X: $i] :
          ( ~ holds(clear(Y),State)
          | ~ holds(holding(X),State)
          | holds(on(X,Y),do(putdown(X,Y),State)) )
    | ~ holds(clear(d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
    | ~ holds(holding(a),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))
    | holds(on(a,d),do(putdown(a,d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))) ),
    inference(modus_ponens,[status(thm)],[233,232]) ).

tff(235,plain,
    holds(on(a,d),do(putdown(a,d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))),
    inference(unit_resolution,[status(thm)],[234,139,231,99]) ).

tff(236,plain,
    ^ [State: $i] :
      refl(( ~ holds(on(a,d),State)
      <=> ~ holds(on(a,d),State) )),
    inference(bind,[status(th)],[]) ).

tff(237,plain,
    ( ! [State: $i] : ~ holds(on(a,d),State)
  <=> ! [State: $i] : ~ holds(on(a,d),State) ),
    inference(quant_intro,[status(thm)],[236]) ).

tff(238,plain,
    ( ! [State: $i] : ~ holds(on(a,d),State)
  <=> ! [State: $i] : ~ holds(on(a,d),State) ),
    inference(rewrite,[status(thm)],[]) ).

tff(239,axiom,
    ! [State: $i] : ~ holds(on(a,d),State),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_AD) ).

tff(240,plain,
    ! [State: $i] : ~ holds(on(a,d),State),
    inference(modus_ponens,[status(thm)],[239,238]) ).

tff(241,plain,
    ! [State: $i] : ~ holds(on(a,d),State),
    inference(skolemize,[status(sab)],[240]) ).

tff(242,plain,
    ! [State: $i] : ~ holds(on(a,d),State),
    inference(modus_ponens,[status(thm)],[241,237]) ).

tff(243,plain,
    ( ~ ! [State: $i] : ~ holds(on(a,d),State)
    | ~ holds(on(a,d),do(putdown(a,d),do(pickup(a),do(putdown(c,b),do(pickup(c),do(putdown(c,a),do(pickup(c),s0))))))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(244,plain,
    $false,
    inference(unit_resolution,[status(thm)],[243,242,235]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem    : PLA007-1 : TPTP v9.0.0. Released v1.1.0.
% 0.06/0.11  % Command    : run_E %s %d THM
% 0.11/0.32  % Computer : n007.cluster.edu
% 0.11/0.32  % Model    : x86_64 x86_64
% 0.11/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.32  % Memory   : 8042.1875MB
% 0.11/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.32  % CPULimit   : 300
% 0.11/0.32  % WCLimit    : 300
% 0.11/0.32  % DateTime   : Fri Jun 20 02:20:50 EDT 2025
% 0.11/0.32  % CPUTime    : 
% 32.22/32.37  % SZS status Unsatisfiable
% 32.22/32.37  % SZS output start Proof
% See solution above
% 32.22/32.43  % E exiting
%------------------------------------------------------------------------------