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ET---2.0.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : ET---2.0
% Problem  : SEU146+2 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_ET %s %d

% Computer : n003.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Tue Jul 19 09:17:08 EDT 2022

% Result   : Theorem 0.24s 1.42s
% Output   : CNFRefutation 0.24s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :   14
% Syntax   : Number of formulae    :   68 (  23 unt;   0 def)
%            Number of atoms       :  146 (  62 equ)
%            Maximal formula atoms :    7 (   2 avg)
%            Number of connectives :  128 (  50   ~;  57   |;  10   &)
%                                         (   7 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   3 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   3 con; 0-2 aty)
%            Number of variables   :  106 (  14 sgn  66   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(l4_zfmisc_1,conjecture,
    ! [X1,X2] :
      ( subset(X1,singleton(X2))
    <=> ( X1 = empty_set
        | X1 = singleton(X2) ) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',l4_zfmisc_1) ).

fof(d1_xboole_0,axiom,
    ! [X1] :
      ( X1 = empty_set
    <=> ! [X2] : ~ in(X2,X1) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',d1_xboole_0) ).

fof(d3_tarski,axiom,
    ! [X1,X2] :
      ( subset(X1,X2)
    <=> ! [X3] :
          ( in(X3,X1)
         => in(X3,X2) ) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',d3_tarski) ).

fof(l32_xboole_1,lemma,
    ! [X1,X2] :
      ( set_difference(X1,X2) = empty_set
    <=> subset(X1,X2) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',l32_xboole_1) ).

fof(d10_xboole_0,axiom,
    ! [X1,X2] :
      ( X1 = X2
    <=> ( subset(X1,X2)
        & subset(X2,X1) ) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',d10_xboole_0) ).

fof(t2_boole,axiom,
    ! [X1] : set_intersection2(X1,empty_set) = empty_set,
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',t2_boole) ).

fof(t48_xboole_1,lemma,
    ! [X1,X2] : set_difference(X1,set_difference(X1,X2)) = set_intersection2(X1,X2),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',t48_xboole_1) ).

fof(t28_xboole_1,lemma,
    ! [X1,X2] :
      ( subset(X1,X2)
     => set_intersection2(X1,X2) = X1 ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',t28_xboole_1) ).

fof(t36_xboole_1,lemma,
    ! [X1,X2] : subset(set_difference(X1,X2),X1),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',t36_xboole_1) ).

fof(l2_zfmisc_1,lemma,
    ! [X1,X2] :
      ( subset(singleton(X1),X2)
    <=> in(X1,X2) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',l2_zfmisc_1) ).

fof(t3_boole,axiom,
    ! [X1] : set_difference(X1,empty_set) = X1,
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',t3_boole) ).

fof(reflexivity_r1_tarski,axiom,
    ! [X1,X2] : subset(X1,X1),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',reflexivity_r1_tarski) ).

fof(t33_xboole_1,lemma,
    ! [X1,X2,X3] :
      ( subset(X1,X2)
     => subset(set_difference(X1,X3),set_difference(X2,X3)) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',t33_xboole_1) ).

fof(l3_zfmisc_1,lemma,
    ! [X1,X2,X3] :
      ( subset(X1,X2)
     => ( in(X3,X1)
        | subset(X1,set_difference(X2,singleton(X3))) ) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',l3_zfmisc_1) ).

fof(c_0_14,negated_conjecture,
    ~ ! [X1,X2] :
        ( subset(X1,singleton(X2))
      <=> ( X1 = empty_set
          | X1 = singleton(X2) ) ),
    inference(assume_negation,[status(cth)],[l4_zfmisc_1]) ).

fof(c_0_15,plain,
    ! [X3,X4,X3] :
      ( ( X3 != empty_set
        | ~ in(X4,X3) )
      & ( in(esk4_1(X3),X3)
        | X3 = empty_set ) ),
    inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(fof_simplification,[status(thm)],[d1_xboole_0])])])])])])]) ).

fof(c_0_16,plain,
    ! [X4,X5,X6,X4,X5] :
      ( ( ~ subset(X4,X5)
        | ~ in(X6,X4)
        | in(X6,X5) )
      & ( in(esk6_2(X4,X5),X4)
        | subset(X4,X5) )
      & ( ~ in(esk6_2(X4,X5),X5)
        | subset(X4,X5) ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[d3_tarski])])])])])])]) ).

fof(c_0_17,lemma,
    ! [X3,X4,X3,X4] :
      ( ( set_difference(X3,X4) != empty_set
        | subset(X3,X4) )
      & ( ~ subset(X3,X4)
        | set_difference(X3,X4) = empty_set ) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[l32_xboole_1])])])]) ).

fof(c_0_18,negated_conjecture,
    ( ( esk1_0 != empty_set
      | ~ subset(esk1_0,singleton(esk2_0)) )
    & ( esk1_0 != singleton(esk2_0)
      | ~ subset(esk1_0,singleton(esk2_0)) )
    & ( subset(esk1_0,singleton(esk2_0))
      | esk1_0 = empty_set
      | esk1_0 = singleton(esk2_0) ) ),
    inference(distribute,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_14])])])]) ).

cnf(c_0_19,plain,
    ( ~ in(X1,X2)
    | X2 != empty_set ),
    inference(split_conjunct,[status(thm)],[c_0_15]) ).

cnf(c_0_20,plain,
    ( subset(X1,X2)
    | in(esk6_2(X1,X2),X1) ),
    inference(split_conjunct,[status(thm)],[c_0_16]) ).

fof(c_0_21,plain,
    ! [X3,X4,X3,X4] :
      ( ( subset(X3,X4)
        | X3 != X4 )
      & ( subset(X4,X3)
        | X3 != X4 )
      & ( ~ subset(X3,X4)
        | ~ subset(X4,X3)
        | X3 = X4 ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[d10_xboole_0])])])])]) ).

fof(c_0_22,plain,
    ! [X2] : set_intersection2(X2,empty_set) = empty_set,
    inference(variable_rename,[status(thm)],[t2_boole]) ).

fof(c_0_23,lemma,
    ! [X3,X4] : set_difference(X3,set_difference(X3,X4)) = set_intersection2(X3,X4),
    inference(variable_rename,[status(thm)],[t48_xboole_1]) ).

fof(c_0_24,lemma,
    ! [X3,X4] :
      ( ~ subset(X3,X4)
      | set_intersection2(X3,X4) = X3 ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t28_xboole_1])]) ).

fof(c_0_25,lemma,
    ! [X3,X4] : subset(set_difference(X3,X4),X3),
    inference(variable_rename,[status(thm)],[t36_xboole_1]) ).

cnf(c_0_26,lemma,
    ( set_difference(X1,X2) = empty_set
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

cnf(c_0_27,negated_conjecture,
    ( esk1_0 = singleton(esk2_0)
    | esk1_0 = empty_set
    | subset(esk1_0,singleton(esk2_0)) ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_28,negated_conjecture,
    ( ~ subset(esk1_0,singleton(esk2_0))
    | esk1_0 != empty_set ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_29,plain,
    ( subset(X1,X2)
    | X1 != empty_set ),
    inference(spm,[status(thm)],[c_0_19,c_0_20]) ).

cnf(c_0_30,plain,
    ( X1 = X2
    | ~ subset(X2,X1)
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_21]) ).

fof(c_0_31,lemma,
    ! [X3,X4,X3,X4] :
      ( ( ~ subset(singleton(X3),X4)
        | in(X3,X4) )
      & ( ~ in(X3,X4)
        | subset(singleton(X3),X4) ) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[l2_zfmisc_1])])])]) ).

cnf(c_0_32,plain,
    set_intersection2(X1,empty_set) = empty_set,
    inference(split_conjunct,[status(thm)],[c_0_22]) ).

cnf(c_0_33,lemma,
    set_difference(X1,set_difference(X1,X2)) = set_intersection2(X1,X2),
    inference(split_conjunct,[status(thm)],[c_0_23]) ).

fof(c_0_34,plain,
    ! [X2] : set_difference(X2,empty_set) = X2,
    inference(variable_rename,[status(thm)],[t3_boole]) ).

cnf(c_0_35,lemma,
    ( set_intersection2(X1,X2) = X1
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_24]) ).

fof(c_0_36,plain,
    ! [X3] : subset(X3,X3),
    inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[reflexivity_r1_tarski])]) ).

cnf(c_0_37,lemma,
    subset(set_difference(X1,X2),X1),
    inference(split_conjunct,[status(thm)],[c_0_25]) ).

cnf(c_0_38,negated_conjecture,
    ( set_difference(esk1_0,singleton(esk2_0)) = empty_set
    | singleton(esk2_0) = esk1_0
    | empty_set = esk1_0 ),
    inference(spm,[status(thm)],[c_0_26,c_0_27]) ).

cnf(c_0_39,negated_conjecture,
    empty_set != esk1_0,
    inference(spm,[status(thm)],[c_0_28,c_0_29]) ).

cnf(c_0_40,negated_conjecture,
    ( singleton(esk2_0) = esk1_0
    | empty_set = esk1_0
    | ~ subset(singleton(esk2_0),esk1_0) ),
    inference(spm,[status(thm)],[c_0_30,c_0_27]) ).

cnf(c_0_41,lemma,
    ( subset(singleton(X1),X2)
    | ~ in(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_31]) ).

fof(c_0_42,lemma,
    ! [X4,X5,X6] :
      ( ~ subset(X4,X5)
      | subset(set_difference(X4,X6),set_difference(X5,X6)) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t33_xboole_1])])])]) ).

cnf(c_0_43,plain,
    set_difference(X1,set_difference(X1,empty_set)) = empty_set,
    inference(rw,[status(thm)],[c_0_32,c_0_33]) ).

cnf(c_0_44,plain,
    set_difference(X1,empty_set) = X1,
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_45,lemma,
    ( set_difference(X1,set_difference(X1,X2)) = X1
    | ~ subset(X1,X2) ),
    inference(rw,[status(thm)],[c_0_35,c_0_33]) ).

cnf(c_0_46,lemma,
    ( in(X1,X2)
    | ~ subset(singleton(X1),X2) ),
    inference(split_conjunct,[status(thm)],[c_0_31]) ).

cnf(c_0_47,plain,
    subset(X1,X1),
    inference(split_conjunct,[status(thm)],[c_0_36]) ).

cnf(c_0_48,lemma,
    ( set_difference(X1,X2) = X1
    | ~ subset(X1,set_difference(X1,X2)) ),
    inference(spm,[status(thm)],[c_0_30,c_0_37]) ).

cnf(c_0_49,negated_conjecture,
    ( set_difference(esk1_0,singleton(esk2_0)) = empty_set
    | singleton(esk2_0) = esk1_0 ),
    inference(sr,[status(thm)],[c_0_38,c_0_39]) ).

cnf(c_0_50,negated_conjecture,
    ( ~ subset(esk1_0,singleton(esk2_0))
    | esk1_0 != singleton(esk2_0) ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_51,lemma,
    ( singleton(esk2_0) = esk1_0
    | ~ in(esk2_0,esk1_0) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_40,c_0_41]),c_0_19]) ).

cnf(c_0_52,lemma,
    ( subset(set_difference(X1,X2),set_difference(X3,X2))
    | ~ subset(X1,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_42]) ).

cnf(c_0_53,plain,
    set_difference(X1,X1) = empty_set,
    inference(rw,[status(thm)],[c_0_43,c_0_44]) ).

cnf(c_0_54,negated_conjecture,
    ( set_difference(esk1_0,set_difference(esk1_0,singleton(esk2_0))) = esk1_0
    | singleton(esk2_0) = esk1_0
    | empty_set = esk1_0 ),
    inference(spm,[status(thm)],[c_0_45,c_0_27]) ).

cnf(c_0_55,lemma,
    in(X1,singleton(X1)),
    inference(spm,[status(thm)],[c_0_46,c_0_47]) ).

cnf(c_0_56,negated_conjecture,
    ( singleton(esk2_0) = esk1_0
    | ~ subset(esk1_0,empty_set) ),
    inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_48,c_0_49]),c_0_39]) ).

cnf(c_0_57,negated_conjecture,
    ~ in(esk2_0,esk1_0),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_50,c_0_51]),c_0_47])]) ).

cnf(c_0_58,lemma,
    ( subset(set_difference(X1,X2),empty_set)
    | ~ subset(X1,X2) ),
    inference(spm,[status(thm)],[c_0_52,c_0_53]) ).

cnf(c_0_59,negated_conjecture,
    ( set_difference(esk1_0,set_difference(esk1_0,singleton(esk2_0))) = esk1_0
    | singleton(esk2_0) = esk1_0 ),
    inference(sr,[status(thm)],[c_0_54,c_0_39]) ).

cnf(c_0_60,lemma,
    ~ subset(esk1_0,empty_set),
    inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_55,c_0_56]),c_0_57]) ).

fof(c_0_61,lemma,
    ! [X4,X5,X6] :
      ( ~ subset(X4,X5)
      | in(X6,X4)
      | subset(X4,set_difference(X5,singleton(X6))) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[l3_zfmisc_1])])])]) ).

cnf(c_0_62,lemma,
    ( subset(X1,X2)
    | set_difference(X1,X2) != empty_set ),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

cnf(c_0_63,negated_conjecture,
    ( singleton(esk2_0) = esk1_0
    | ~ subset(esk1_0,set_difference(esk1_0,singleton(esk2_0))) ),
    inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_58,c_0_59]),c_0_60]) ).

cnf(c_0_64,lemma,
    ( subset(X1,set_difference(X2,singleton(X3)))
    | in(X3,X1)
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_61]) ).

cnf(c_0_65,negated_conjecture,
    ( set_difference(esk1_0,singleton(esk2_0)) != empty_set
    | singleton(esk2_0) != esk1_0 ),
    inference(spm,[status(thm)],[c_0_50,c_0_62]) ).

cnf(c_0_66,lemma,
    singleton(esk2_0) = esk1_0,
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_63,c_0_64]),c_0_47])]),c_0_57]) ).

cnf(c_0_67,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_65,c_0_66]),c_0_53]),c_0_66])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : SEU146+2 : TPTP v8.1.0. Released v3.3.0.
% 0.04/0.13  % Command  : run_ET %s %d
% 0.12/0.34  % Computer : n003.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Sun Jun 19 01:04:13 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.24/1.42  # Running protocol protocol_eprover_4a02c828a8cc55752123edbcc1ad40e453c11447 for 23 seconds:
% 0.24/1.42  # SinE strategy is GSinE(CountFormulas,hypos,1.4,,04,100,1.0)
% 0.24/1.42  # Preprocessing time       : 0.019 s
% 0.24/1.42  
% 0.24/1.42  # Proof found!
% 0.24/1.42  # SZS status Theorem
% 0.24/1.42  # SZS output start CNFRefutation
% See solution above
% 0.24/1.42  # Proof object total steps             : 68
% 0.24/1.42  # Proof object clause steps            : 39
% 0.24/1.42  # Proof object formula steps           : 29
% 0.24/1.42  # Proof object conjectures             : 17
% 0.24/1.42  # Proof object clause conjectures      : 14
% 0.24/1.42  # Proof object formula conjectures     : 3
% 0.24/1.42  # Proof object initial clauses used    : 18
% 0.24/1.42  # Proof object initial formulas used   : 14
% 0.24/1.42  # Proof object generating inferences   : 15
% 0.24/1.42  # Proof object simplifying inferences  : 18
% 0.24/1.42  # Training examples: 0 positive, 0 negative
% 0.24/1.42  # Parsed axioms                        : 67
% 0.24/1.42  # Removed by relevancy pruning/SinE    : 27
% 0.24/1.42  # Initial clauses                      : 69
% 0.24/1.42  # Removed in clause preprocessing      : 1
% 0.24/1.42  # Initial clauses in saturation        : 68
% 0.24/1.42  # Processed clauses                    : 479
% 0.24/1.42  # ...of these trivial                  : 17
% 0.24/1.42  # ...subsumed                          : 272
% 0.24/1.42  # ...remaining for further processing  : 190
% 0.24/1.42  # Other redundant clauses eliminated   : 43
% 0.24/1.42  # Clauses deleted for lack of memory   : 0
% 0.24/1.42  # Backward-subsumed                    : 7
% 0.24/1.42  # Backward-rewritten                   : 39
% 0.24/1.42  # Generated clauses                    : 2364
% 0.24/1.42  # ...of the previous two non-trivial   : 1768
% 0.24/1.42  # Contextual simplify-reflections      : 70
% 0.24/1.42  # Paramodulations                      : 2289
% 0.24/1.42  # Factorizations                       : 14
% 0.24/1.42  # Equation resolutions                 : 57
% 0.24/1.42  # Current number of processed clauses  : 137
% 0.24/1.42  #    Positive orientable unit clauses  : 32
% 0.24/1.42  #    Positive unorientable unit clauses: 2
% 0.24/1.42  #    Negative unit clauses             : 8
% 0.24/1.42  #    Non-unit-clauses                  : 95
% 0.24/1.42  # Current number of unprocessed clauses: 1019
% 0.24/1.42  # ...number of literals in the above   : 2825
% 0.24/1.42  # Current number of archived formulas  : 0
% 0.24/1.42  # Current number of archived clauses   : 51
% 0.24/1.42  # Clause-clause subsumption calls (NU) : 2982
% 0.24/1.42  # Rec. Clause-clause subsumption calls : 2547
% 0.24/1.42  # Non-unit clause-clause subsumptions  : 233
% 0.24/1.42  # Unit Clause-clause subsumption calls : 127
% 0.24/1.42  # Rewrite failures with RHS unbound    : 0
% 0.24/1.42  # BW rewrite match attempts            : 28
% 0.24/1.42  # BW rewrite match successes           : 14
% 0.24/1.42  # Condensation attempts                : 0
% 0.24/1.42  # Condensation successes               : 0
% 0.24/1.42  # Termbank termtop insertions          : 24481
% 0.24/1.42  
% 0.24/1.42  # -------------------------------------------------
% 0.24/1.42  # User time                : 0.066 s
% 0.24/1.42  # System time              : 0.008 s
% 0.24/1.42  # Total time               : 0.074 s
% 0.24/1.42  # Maximum resident set size: 4408 pages
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