TSTP Solution File: SET587+3 by CSE_E---1.5

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%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : SET587+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %d %s

% Computer : n005.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 : Thu Aug 31 14:34:38 EDT 2023

% Result   : Theorem 0.17s 0.54s
% Output   : CNFRefutation 0.17s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :   17
% Syntax   : Number of formulae    :   52 (  10 unt;  11 typ;   0 def)
%            Number of atoms       :   98 (  13 equ)
%            Maximal formula atoms :    7 (   2 avg)
%            Number of connectives :  101 (  44   ~;  37   |;  11   &)
%                                         (   8 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   14 (   8   >;   6   *;   0   +;   0  <<)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   3 con; 0-2 aty)
%            Number of variables   :   69 (   7 sgn;  35   !;   0   ?;   0   :)

% Comments : 
%------------------------------------------------------------------------------
tff(decl_22,type,
    member: ( $i * $i ) > $o ).

tff(decl_23,type,
    difference: ( $i * $i ) > $i ).

tff(decl_24,type,
    empty_set: $i ).

tff(decl_25,type,
    subset: ( $i * $i ) > $o ).

tff(decl_26,type,
    empty: $i > $o ).

tff(decl_27,type,
    esk1_2: ( $i * $i ) > $i ).

tff(decl_28,type,
    esk2_2: ( $i * $i ) > $i ).

tff(decl_29,type,
    esk3_2: ( $i * $i ) > $i ).

tff(decl_30,type,
    esk4_1: $i > $i ).

tff(decl_31,type,
    esk5_0: $i ).

tff(decl_32,type,
    esk6_0: $i ).

fof(difference_defn,axiom,
    ! [X1,X2,X3] :
      ( member(X3,difference(X1,X2))
    <=> ( member(X3,X1)
        & ~ member(X3,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',difference_defn) ).

fof(empty_defn,axiom,
    ! [X1] :
      ( empty(X1)
    <=> ! [X2] : ~ member(X2,X1) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',empty_defn) ).

fof(prove_difference_empty_set,conjecture,
    ! [X1,X2] :
      ( difference(X1,X2) = empty_set
    <=> subset(X1,X2) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_difference_empty_set) ).

fof(empty_set_defn,axiom,
    ! [X1] : ~ member(X1,empty_set),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',empty_set_defn) ).

fof(subset_defn,axiom,
    ! [X1,X2] :
      ( subset(X1,X2)
    <=> ! [X3] :
          ( member(X3,X1)
         => member(X3,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subset_defn) ).

fof(equal_defn,axiom,
    ! [X1,X2] :
      ( X1 = X2
    <=> ( subset(X1,X2)
        & subset(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equal_defn) ).

fof(c_0_6,plain,
    ! [X1,X2,X3] :
      ( member(X3,difference(X1,X2))
    <=> ( member(X3,X1)
        & ~ member(X3,X2) ) ),
    inference(fof_simplification,[status(thm)],[difference_defn]) ).

fof(c_0_7,plain,
    ! [X1] :
      ( empty(X1)
    <=> ! [X2] : ~ member(X2,X1) ),
    inference(fof_simplification,[status(thm)],[empty_defn]) ).

fof(c_0_8,negated_conjecture,
    ~ ! [X1,X2] :
        ( difference(X1,X2) = empty_set
      <=> subset(X1,X2) ),
    inference(assume_negation,[status(cth)],[prove_difference_empty_set]) ).

fof(c_0_9,plain,
    ! [X1] : ~ member(X1,empty_set),
    inference(fof_simplification,[status(thm)],[empty_set_defn]) ).

fof(c_0_10,plain,
    ! [X7,X8,X9] :
      ( ( member(X9,X7)
        | ~ member(X9,difference(X7,X8)) )
      & ( ~ member(X9,X8)
        | ~ member(X9,difference(X7,X8)) )
      & ( ~ member(X9,X7)
        | member(X9,X8)
        | member(X9,difference(X7,X8)) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_6])])]) ).

fof(c_0_11,plain,
    ! [X27,X28,X29] :
      ( ( ~ empty(X27)
        | ~ member(X28,X27) )
      & ( member(esk4_1(X29),X29)
        | empty(X29) ) ),
    inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_7])])])])]) ).

fof(c_0_12,negated_conjecture,
    ( ( difference(esk5_0,esk6_0) != empty_set
      | ~ subset(esk5_0,esk6_0) )
    & ( difference(esk5_0,esk6_0) = empty_set
      | subset(esk5_0,esk6_0) ) ),
    inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_8])])]) ).

fof(c_0_13,plain,
    ! [X10] : ~ member(X10,empty_set),
    inference(variable_rename,[status(thm)],[c_0_9]) ).

fof(c_0_14,plain,
    ! [X11,X12,X13,X14,X15] :
      ( ( ~ subset(X11,X12)
        | ~ member(X13,X11)
        | member(X13,X12) )
      & ( member(esk2_2(X14,X15),X14)
        | subset(X14,X15) )
      & ( ~ member(esk2_2(X14,X15),X15)
        | subset(X14,X15) ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[subset_defn])])])])])]) ).

cnf(c_0_15,plain,
    ( ~ member(X1,X2)
    | ~ member(X1,difference(X3,X2)) ),
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_16,plain,
    ( member(esk4_1(X1),X1)
    | empty(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_11]) ).

cnf(c_0_17,plain,
    ( member(X1,X3)
    | member(X1,difference(X2,X3))
    | ~ member(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_18,negated_conjecture,
    ( difference(esk5_0,esk6_0) = empty_set
    | subset(esk5_0,esk6_0) ),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_19,plain,
    ~ member(X1,empty_set),
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

cnf(c_0_20,plain,
    ( member(X3,X2)
    | ~ subset(X1,X2)
    | ~ member(X3,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_21,plain,
    ( empty(difference(X1,X2))
    | ~ member(esk4_1(difference(X1,X2)),X2) ),
    inference(spm,[status(thm)],[c_0_15,c_0_16]) ).

cnf(c_0_22,negated_conjecture,
    ( member(X1,esk6_0)
    | ~ member(X1,esk5_0) ),
    inference(csr,[status(thm)],[inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_18]),c_0_19]),c_0_20]) ).

cnf(c_0_23,plain,
    ( member(X1,X2)
    | ~ member(X1,difference(X2,X3)) ),
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_24,plain,
    ( subset(X1,X2)
    | ~ member(esk2_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

fof(c_0_25,plain,
    ! [X17,X18] :
      ( ( subset(X17,X18)
        | X17 != X18 )
      & ( subset(X18,X17)
        | X17 != X18 )
      & ( ~ subset(X17,X18)
        | ~ subset(X18,X17)
        | X17 = X18 ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[equal_defn])])]) ).

cnf(c_0_26,plain,
    ( member(esk2_2(X1,X2),X1)
    | subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_27,plain,
    ( ~ empty(X1)
    | ~ member(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_11]) ).

cnf(c_0_28,negated_conjecture,
    ( empty(difference(X1,esk6_0))
    | ~ member(esk4_1(difference(X1,esk6_0)),esk5_0) ),
    inference(spm,[status(thm)],[c_0_21,c_0_22]) ).

cnf(c_0_29,plain,
    ( empty(difference(X1,X2))
    | member(esk4_1(difference(X1,X2)),X1) ),
    inference(spm,[status(thm)],[c_0_23,c_0_16]) ).

cnf(c_0_30,negated_conjecture,
    ( subset(X1,esk6_0)
    | ~ member(esk2_2(X1,esk6_0),esk5_0) ),
    inference(spm,[status(thm)],[c_0_24,c_0_22]) ).

cnf(c_0_31,plain,
    ( X1 = X2
    | ~ subset(X1,X2)
    | ~ subset(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_25]) ).

cnf(c_0_32,plain,
    subset(empty_set,X1),
    inference(spm,[status(thm)],[c_0_19,c_0_26]) ).

cnf(c_0_33,plain,
    ( subset(X1,X2)
    | ~ empty(X1) ),
    inference(spm,[status(thm)],[c_0_27,c_0_26]) ).

cnf(c_0_34,negated_conjecture,
    empty(difference(esk5_0,esk6_0)),
    inference(spm,[status(thm)],[c_0_28,c_0_29]) ).

cnf(c_0_35,negated_conjecture,
    ( difference(esk5_0,esk6_0) != empty_set
    | ~ subset(esk5_0,esk6_0) ),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_36,negated_conjecture,
    subset(esk5_0,esk6_0),
    inference(spm,[status(thm)],[c_0_30,c_0_26]) ).

cnf(c_0_37,plain,
    ( X1 = empty_set
    | ~ subset(X1,empty_set) ),
    inference(spm,[status(thm)],[c_0_31,c_0_32]) ).

cnf(c_0_38,negated_conjecture,
    subset(difference(esk5_0,esk6_0),X1),
    inference(spm,[status(thm)],[c_0_33,c_0_34]) ).

cnf(c_0_39,negated_conjecture,
    difference(esk5_0,esk6_0) != empty_set,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_35,c_0_36])]) ).

cnf(c_0_40,negated_conjecture,
    $false,
    inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_37,c_0_38]),c_0_39]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem    : SET587+3 : TPTP v8.1.2. Released v2.2.0.
% 0.00/0.11  % Command    : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %d %s
% 0.11/0.32  % Computer : n005.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   : Sat Aug 26 08:41:23 EDT 2023
% 0.11/0.32  % CPUTime  : 
% 0.17/0.53  start to proof: theBenchmark
% 0.17/0.54  % Version  : CSE_E---1.5
% 0.17/0.54  % Problem  : theBenchmark.p
% 0.17/0.54  % Proof found
% 0.17/0.54  % SZS status Theorem for theBenchmark.p
% 0.17/0.54  % SZS output start Proof
% See solution above
% 0.17/0.55  % Total time : 0.006000 s
% 0.17/0.55  % SZS output end Proof
% 0.17/0.55  % Total time : 0.008000 s
%------------------------------------------------------------------------------