TSTP Solution File: SET634+3 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : SET634+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s

% Computer : n023.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 14:34:58 EDT 2023

% Result   : Theorem 11.68s 11.78s
% Output   : CNFRefutation 11.68s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   17
% Syntax   : Number of formulae    :  122 (  53 unt;  10 typ;   0 def)
%            Number of atoms       :  213 (  48 equ)
%            Maximal formula atoms :    7 (   1 avg)
%            Number of connectives :  164 (  63   ~;  80   |;  13   &)
%                                         (   6 <=>;   2  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   3 avg)
%            Maximal term depth    :    5 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   14 (   7   >;   7   *;   0   +;   0  <<)
%            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   :  314 (  46 sgn;  42   !;   0   ?;   0   :)

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

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

tff(decl_24,type,
    difference: ( $i * $i ) > $i ).

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

tff(decl_26,type,
    esk1_2: ( $i * $i ) > $i ).

tff(decl_27,type,
    esk2_2: ( $i * $i ) > $i ).

tff(decl_28,type,
    esk3_2: ( $i * $i ) > $i ).

tff(decl_29,type,
    esk4_0: $i ).

tff(decl_30,type,
    esk5_0: $i ).

tff(decl_31,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/sandbox2/benchmark/theBenchmark.p',difference_defn) ).

fof(intersection_defn,axiom,
    ! [X1,X2,X3] :
      ( member(X3,intersection(X1,X2))
    <=> ( member(X3,X1)
        & member(X3,X2) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersection_defn) ).

fof(subset_defn,axiom,
    ! [X1,X2] :
      ( subset(X1,X2)
    <=> ! [X3] :
          ( member(X3,X1)
         => member(X3,X2) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subset_defn) ).

fof(commutativity_of_intersection,axiom,
    ! [X1,X2] : intersection(X1,X2) = intersection(X2,X1),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_of_intersection) ).

fof(equal_defn,axiom,
    ! [X1,X2] :
      ( X1 = X2
    <=> ( subset(X1,X2)
        & subset(X2,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equal_defn) ).

fof(member_equal,axiom,
    ! [X1,X2] :
      ( ! [X3] :
          ( member(X3,X1)
        <=> member(X3,X2) )
     => X1 = X2 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',member_equal) ).

fof(prove_difference_and_intersection,conjecture,
    ! [X1,X2,X3] : intersection(X1,difference(X2,X3)) = difference(intersection(X1,X2),X3),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_difference_and_intersection) ).

fof(c_0_7,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_8,plain,
    ! [X7,X8,X9] :
      ( ( member(X9,X7)
        | ~ member(X9,intersection(X7,X8)) )
      & ( member(X9,X8)
        | ~ member(X9,intersection(X7,X8)) )
      & ( ~ member(X9,X7)
        | ~ member(X9,X8)
        | member(X9,intersection(X7,X8)) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[intersection_defn])])]) ).

fof(c_0_9,plain,
    ! [X24,X25,X26,X27,X28] :
      ( ( ~ subset(X24,X25)
        | ~ member(X26,X24)
        | member(X26,X25) )
      & ( member(esk3_2(X27,X28),X27)
        | subset(X27,X28) )
      & ( ~ member(esk3_2(X27,X28),X28)
        | subset(X27,X28) ) ),
    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])])])])])]) ).

fof(c_0_10,plain,
    ! [X10,X11,X12] :
      ( ( member(X12,X10)
        | ~ member(X12,difference(X10,X11)) )
      & ( ~ member(X12,X11)
        | ~ member(X12,difference(X10,X11)) )
      & ( ~ member(X12,X10)
        | member(X12,X11)
        | member(X12,difference(X10,X11)) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_7])])]) ).

cnf(c_0_11,plain,
    ( member(X1,X2)
    | ~ member(X1,intersection(X3,X2)) ),
    inference(split_conjunct,[status(thm)],[c_0_8]) ).

cnf(c_0_12,plain,
    ( member(esk3_2(X1,X2),X1)
    | subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_9]) ).

cnf(c_0_13,plain,
    ( member(X1,X2)
    | ~ member(X1,difference(X2,X3)) ),
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_14,plain,
    ( subset(X1,X2)
    | ~ member(esk3_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[c_0_9]) ).

cnf(c_0_15,plain,
    ( subset(intersection(X1,X2),X3)
    | member(esk3_2(intersection(X1,X2),X3),X2) ),
    inference(spm,[status(thm)],[c_0_11,c_0_12]) ).

fof(c_0_16,plain,
    ! [X15,X16] : intersection(X15,X16) = intersection(X16,X15),
    inference(variable_rename,[status(thm)],[commutativity_of_intersection]) ).

fof(c_0_17,plain,
    ! [X13,X14] :
      ( ( subset(X13,X14)
        | X13 != X14 )
      & ( subset(X14,X13)
        | X13 != X14 )
      & ( ~ subset(X13,X14)
        | ~ subset(X14,X13)
        | X13 = X14 ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[equal_defn])])]) ).

cnf(c_0_18,plain,
    ( subset(difference(X1,X2),X3)
    | member(esk3_2(difference(X1,X2),X3),X1) ),
    inference(spm,[status(thm)],[c_0_13,c_0_12]) ).

cnf(c_0_19,plain,
    ( ~ member(X1,X2)
    | ~ member(X1,difference(X3,X2)) ),
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_20,plain,
    ( member(X1,X2)
    | ~ member(X1,intersection(X2,X3)) ),
    inference(split_conjunct,[status(thm)],[c_0_8]) ).

cnf(c_0_21,plain,
    subset(intersection(X1,X2),X2),
    inference(spm,[status(thm)],[c_0_14,c_0_15]) ).

cnf(c_0_22,plain,
    intersection(X1,X2) = intersection(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_16]) ).

cnf(c_0_23,plain,
    ( X1 = X2
    | ~ subset(X1,X2)
    | ~ subset(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

cnf(c_0_24,plain,
    subset(difference(X1,X2),X1),
    inference(spm,[status(thm)],[c_0_14,c_0_18]) ).

cnf(c_0_25,plain,
    ( subset(difference(X1,X2),X3)
    | ~ member(esk3_2(difference(X1,X2),X3),X2) ),
    inference(spm,[status(thm)],[c_0_19,c_0_12]) ).

cnf(c_0_26,plain,
    ( subset(intersection(X1,X2),X3)
    | member(esk3_2(intersection(X1,X2),X3),X1) ),
    inference(spm,[status(thm)],[c_0_20,c_0_12]) ).

cnf(c_0_27,plain,
    subset(intersection(X1,X2),X1),
    inference(spm,[status(thm)],[c_0_21,c_0_22]) ).

cnf(c_0_28,plain,
    ( difference(X1,X2) = X1
    | ~ subset(X1,difference(X1,X2)) ),
    inference(spm,[status(thm)],[c_0_23,c_0_24]) ).

cnf(c_0_29,plain,
    subset(difference(X1,X1),X2),
    inference(spm,[status(thm)],[c_0_25,c_0_18]) ).

cnf(c_0_30,plain,
    ( subset(intersection(difference(X1,X2),X3),X4)
    | ~ member(esk3_2(intersection(difference(X1,X2),X3),X4),X2) ),
    inference(spm,[status(thm)],[c_0_19,c_0_26]) ).

cnf(c_0_31,plain,
    ( subset(intersection(X1,difference(X2,X3)),X4)
    | member(esk3_2(intersection(X1,difference(X2,X3)),X4),X2) ),
    inference(spm,[status(thm)],[c_0_13,c_0_15]) ).

cnf(c_0_32,plain,
    ( intersection(X1,X2) = X1
    | ~ subset(X1,intersection(X1,X2)) ),
    inference(spm,[status(thm)],[c_0_23,c_0_27]) ).

cnf(c_0_33,plain,
    difference(difference(X1,X1),X2) = difference(X1,X1),
    inference(spm,[status(thm)],[c_0_28,c_0_29]) ).

cnf(c_0_34,plain,
    ( member(X1,X3)
    | member(X1,difference(X2,X3))
    | ~ member(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_35,plain,
    ( X1 = difference(X2,X2)
    | ~ subset(X1,difference(X2,X2)) ),
    inference(spm,[status(thm)],[c_0_23,c_0_29]) ).

cnf(c_0_36,plain,
    subset(intersection(difference(X1,X2),difference(X2,X3)),X4),
    inference(spm,[status(thm)],[c_0_30,c_0_31]) ).

cnf(c_0_37,plain,
    intersection(difference(X1,X1),X2) = difference(X1,X1),
    inference(spm,[status(thm)],[c_0_32,c_0_29]) ).

cnf(c_0_38,plain,
    ( ~ member(X1,difference(X2,X2))
    | ~ member(X1,X3) ),
    inference(spm,[status(thm)],[c_0_19,c_0_33]) ).

cnf(c_0_39,plain,
    ( subset(X1,difference(X2,X3))
    | member(esk3_2(X1,difference(X2,X3)),X3)
    | ~ member(esk3_2(X1,difference(X2,X3)),X2) ),
    inference(spm,[status(thm)],[c_0_14,c_0_34]) ).

cnf(c_0_40,plain,
    ( member(X1,intersection(X2,X3))
    | ~ member(X1,X2)
    | ~ member(X1,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_8]) ).

cnf(c_0_41,plain,
    intersection(difference(X1,X2),difference(X2,X3)) = difference(X4,X4),
    inference(spm,[status(thm)],[c_0_35,c_0_36]) ).

cnf(c_0_42,plain,
    ~ member(X1,difference(X2,X2)),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_11,c_0_37]),c_0_38]) ).

cnf(c_0_43,plain,
    ( subset(X1,difference(X1,X2))
    | member(esk3_2(X1,difference(X1,X2)),X2) ),
    inference(spm,[status(thm)],[c_0_39,c_0_12]) ).

cnf(c_0_44,plain,
    ( subset(difference(difference(X1,X2),X3),X4)
    | member(esk3_2(difference(difference(X1,X2),X3),X4),X1) ),
    inference(spm,[status(thm)],[c_0_13,c_0_18]) ).

cnf(c_0_45,plain,
    ( ~ member(X1,difference(X2,X3))
    | ~ member(X1,difference(X4,X2)) ),
    inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_40,c_0_41]),c_0_42]) ).

cnf(c_0_46,plain,
    subset(X1,difference(X1,difference(X2,X2))),
    inference(spm,[status(thm)],[c_0_42,c_0_43]) ).

cnf(c_0_47,plain,
    subset(difference(difference(X1,X2),X1),X3),
    inference(spm,[status(thm)],[c_0_25,c_0_44]) ).

cnf(c_0_48,plain,
    ( subset(difference(X1,X2),X3)
    | ~ member(esk3_2(difference(X1,X2),X3),difference(X4,X1)) ),
    inference(spm,[status(thm)],[c_0_45,c_0_12]) ).

cnf(c_0_49,plain,
    difference(X1,difference(X2,X2)) = X1,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_46]),c_0_24])]) ).

cnf(c_0_50,plain,
    difference(difference(difference(X1,X2),X1),X3) = difference(difference(X1,X2),X1),
    inference(spm,[status(thm)],[c_0_28,c_0_47]) ).

cnf(c_0_51,plain,
    subset(difference(X1,X2),difference(difference(X1,X2),difference(X3,X1))),
    inference(spm,[status(thm)],[c_0_48,c_0_43]) ).

cnf(c_0_52,plain,
    difference(X1,difference(difference(X2,X3),X2)) = X1,
    inference(spm,[status(thm)],[c_0_49,c_0_50]) ).

cnf(c_0_53,plain,
    ( subset(X1,intersection(X2,X3))
    | ~ member(esk3_2(X1,intersection(X2,X3)),X3)
    | ~ member(esk3_2(X1,intersection(X2,X3)),X2) ),
    inference(spm,[status(thm)],[c_0_14,c_0_40]) ).

cnf(c_0_54,plain,
    ( subset(difference(intersection(X1,X2),X3),X4)
    | member(esk3_2(difference(intersection(X1,X2),X3),X4),X2) ),
    inference(spm,[status(thm)],[c_0_11,c_0_18]) ).

cnf(c_0_55,plain,
    ( subset(difference(X1,difference(X2,X3)),X4)
    | member(esk3_2(difference(X1,difference(X2,X3)),X4),X3)
    | ~ member(esk3_2(difference(X1,difference(X2,X3)),X4),X2) ),
    inference(spm,[status(thm)],[c_0_25,c_0_34]) ).

cnf(c_0_56,plain,
    ( subset(difference(intersection(X1,X2),X3),X4)
    | member(esk3_2(difference(intersection(X1,X2),X3),X4),X1) ),
    inference(spm,[status(thm)],[c_0_20,c_0_18]) ).

cnf(c_0_57,plain,
    ( subset(intersection(X1,X2),difference(X2,X3))
    | member(esk3_2(intersection(X1,X2),difference(X2,X3)),X3) ),
    inference(spm,[status(thm)],[c_0_39,c_0_15]) ).

cnf(c_0_58,plain,
    subset(X1,difference(X1,difference(X2,X1))),
    inference(spm,[status(thm)],[c_0_51,c_0_52]) ).

cnf(c_0_59,plain,
    ( subset(intersection(X1,difference(X2,X3)),X4)
    | ~ member(esk3_2(intersection(X1,difference(X2,X3)),X4),X3) ),
    inference(spm,[status(thm)],[c_0_19,c_0_15]) ).

cnf(c_0_60,plain,
    ( subset(difference(intersection(X1,X2),X3),intersection(X4,X2))
    | ~ member(esk3_2(difference(intersection(X1,X2),X3),intersection(X4,X2)),X4) ),
    inference(spm,[status(thm)],[c_0_53,c_0_54]) ).

cnf(c_0_61,plain,
    ( subset(difference(intersection(X1,X2),difference(X1,X3)),X4)
    | member(esk3_2(difference(intersection(X1,X2),difference(X1,X3)),X4),X3) ),
    inference(spm,[status(thm)],[c_0_55,c_0_56]) ).

cnf(c_0_62,plain,
    ( subset(difference(X1,X2),intersection(X3,X1))
    | ~ member(esk3_2(difference(X1,X2),intersection(X3,X1)),X3) ),
    inference(spm,[status(thm)],[c_0_53,c_0_18]) ).

cnf(c_0_63,plain,
    ( subset(difference(X1,difference(X1,X2)),X3)
    | member(esk3_2(difference(X1,difference(X1,X2)),X3),X2) ),
    inference(spm,[status(thm)],[c_0_55,c_0_18]) ).

cnf(c_0_64,plain,
    subset(intersection(difference(X1,X2),X3),difference(X3,X2)),
    inference(spm,[status(thm)],[c_0_30,c_0_57]) ).

cnf(c_0_65,plain,
    difference(X1,difference(X2,X1)) = X1,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_58]),c_0_24])]) ).

cnf(c_0_66,plain,
    subset(intersection(X1,difference(X2,X1)),X3),
    inference(spm,[status(thm)],[c_0_59,c_0_26]) ).

cnf(c_0_67,plain,
    subset(difference(intersection(X1,X2),difference(X1,X3)),intersection(X3,X2)),
    inference(spm,[status(thm)],[c_0_60,c_0_61]) ).

cnf(c_0_68,plain,
    ( subset(intersection(X1,X2),intersection(X3,X2))
    | ~ member(esk3_2(intersection(X1,X2),intersection(X3,X2)),X3) ),
    inference(spm,[status(thm)],[c_0_53,c_0_15]) ).

cnf(c_0_69,plain,
    ( subset(intersection(intersection(X1,X2),X3),X4)
    | member(esk3_2(intersection(intersection(X1,X2),X3),X4),X2) ),
    inference(spm,[status(thm)],[c_0_11,c_0_26]) ).

cnf(c_0_70,plain,
    subset(difference(X1,difference(X1,X2)),intersection(X2,X1)),
    inference(spm,[status(thm)],[c_0_62,c_0_63]) ).

cnf(c_0_71,plain,
    subset(intersection(X1,X2),difference(X2,difference(X3,X1))),
    inference(spm,[status(thm)],[c_0_64,c_0_65]) ).

cnf(c_0_72,plain,
    ( X1 = intersection(X2,difference(X3,X2))
    | ~ subset(X1,intersection(X2,difference(X3,X2))) ),
    inference(spm,[status(thm)],[c_0_23,c_0_66]) ).

cnf(c_0_73,plain,
    subset(difference(intersection(X1,X2),difference(X1,X3)),intersection(X2,X3)),
    inference(spm,[status(thm)],[c_0_67,c_0_22]) ).

cnf(c_0_74,plain,
    difference(intersection(X1,difference(X2,X1)),X3) = intersection(X1,difference(X2,X1)),
    inference(spm,[status(thm)],[c_0_28,c_0_66]) ).

cnf(c_0_75,plain,
    subset(intersection(intersection(X1,X2),X3),intersection(X2,X3)),
    inference(spm,[status(thm)],[c_0_68,c_0_69]) ).

cnf(c_0_76,plain,
    difference(X1,difference(X1,X2)) = intersection(X2,X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_70]),c_0_71])]) ).

cnf(c_0_77,plain,
    difference(intersection(X1,X2),difference(X1,difference(X3,X2))) = intersection(X2,difference(X3,X2)),
    inference(spm,[status(thm)],[c_0_72,c_0_73]) ).

cnf(c_0_78,plain,
    difference(X1,intersection(X2,difference(X3,X2))) = X1,
    inference(spm,[status(thm)],[c_0_49,c_0_74]) ).

fof(c_0_79,plain,
    ! [X4,X5] :
      ( ( ~ member(esk1_2(X4,X5),X4)
        | ~ member(esk1_2(X4,X5),X5)
        | X4 = X5 )
      & ( member(esk1_2(X4,X5),X4)
        | member(esk1_2(X4,X5),X5)
        | X4 = X5 ) ),
    inference(distribute,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[member_equal])])])]) ).

cnf(c_0_80,plain,
    ( subset(intersection(X1,intersection(X2,X3)),X4)
    | member(esk3_2(intersection(X1,intersection(X2,X3)),X4),X2) ),
    inference(spm,[status(thm)],[c_0_20,c_0_15]) ).

cnf(c_0_81,plain,
    subset(intersection(intersection(X1,X2),X3),intersection(X3,X2)),
    inference(spm,[status(thm)],[c_0_75,c_0_22]) ).

cnf(c_0_82,plain,
    intersection(intersection(X1,X2),difference(X1,difference(X3,X2))) = intersection(X1,X2),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_76,c_0_77]),c_0_78]),c_0_22]) ).

cnf(c_0_83,plain,
    ( subset(intersection(X1,X2),intersection(X3,X1))
    | ~ member(esk3_2(intersection(X1,X2),intersection(X3,X1)),X3) ),
    inference(spm,[status(thm)],[c_0_53,c_0_26]) ).

cnf(c_0_84,plain,
    ( member(esk1_2(X1,X2),X1)
    | member(esk1_2(X1,X2),X2)
    | X1 = X2 ),
    inference(split_conjunct,[status(thm)],[c_0_79]) ).

cnf(c_0_85,plain,
    subset(intersection(X1,intersection(X2,X3)),X2),
    inference(spm,[status(thm)],[c_0_14,c_0_80]) ).

cnf(c_0_86,plain,
    subset(intersection(X1,X2),intersection(X2,difference(X1,difference(X3,X2)))),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_81,c_0_82]),c_0_22]) ).

cnf(c_0_87,plain,
    subset(intersection(X1,difference(X2,X3)),intersection(X2,X1)),
    inference(spm,[status(thm)],[c_0_83,c_0_31]) ).

cnf(c_0_88,plain,
    ( X1 = X2
    | ~ member(esk1_2(X1,X2),X1)
    | ~ member(esk1_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[c_0_79]) ).

cnf(c_0_89,plain,
    ( X1 = intersection(X2,X3)
    | member(esk1_2(X1,intersection(X2,X3)),X1)
    | member(esk1_2(X1,intersection(X2,X3)),X3) ),
    inference(spm,[status(thm)],[c_0_11,c_0_84]) ).

cnf(c_0_90,plain,
    ( member(X3,X2)
    | ~ subset(X1,X2)
    | ~ member(X3,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_9]) ).

cnf(c_0_91,plain,
    subset(intersection(intersection(X1,X2),X3),X1),
    inference(spm,[status(thm)],[c_0_85,c_0_22]) ).

cnf(c_0_92,plain,
    intersection(X1,difference(X2,difference(X3,X1))) = intersection(X2,X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_86]),c_0_87])]) ).

cnf(c_0_93,plain,
    ( X1 = intersection(X2,X3)
    | ~ member(esk1_2(X1,intersection(X2,X3)),X1)
    | ~ member(esk1_2(X1,intersection(X2,X3)),X3)
    | ~ member(esk1_2(X1,intersection(X2,X3)),X2) ),
    inference(spm,[status(thm)],[c_0_88,c_0_40]) ).

cnf(c_0_94,plain,
    ( intersection(X1,X2) = X2
    | member(esk1_2(X2,intersection(X1,X2)),X2) ),
    inference(ef,[status(thm)],[c_0_89]) ).

cnf(c_0_95,plain,
    ( member(X1,X2)
    | ~ member(X1,intersection(intersection(X2,X3),X4)) ),
    inference(spm,[status(thm)],[c_0_90,c_0_91]) ).

cnf(c_0_96,plain,
    intersection(difference(X1,X2),difference(X3,X2)) = intersection(X3,difference(X1,X2)),
    inference(spm,[status(thm)],[c_0_92,c_0_65]) ).

cnf(c_0_97,plain,
    ( intersection(X1,X2) = X2
    | ~ member(esk1_2(X2,intersection(X1,X2)),X1) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_93,c_0_94]),c_0_94]) ).

cnf(c_0_98,plain,
    ( intersection(X1,intersection(intersection(X2,X3),X4)) = intersection(intersection(X2,X3),X4)
    | member(esk1_2(intersection(intersection(X2,X3),X4),intersection(X1,intersection(intersection(X2,X3),X4))),X2) ),
    inference(spm,[status(thm)],[c_0_95,c_0_94]) ).

cnf(c_0_99,plain,
    subset(difference(X1,X2),intersection(X1,difference(X1,X2))),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_62,c_0_12]),c_0_22]) ).

fof(c_0_100,negated_conjecture,
    ~ ! [X1,X2,X3] : intersection(X1,difference(X2,X3)) = difference(intersection(X1,X2),X3),
    inference(assume_negation,[status(cth)],[prove_difference_and_intersection]) ).

cnf(c_0_101,plain,
    intersection(X1,difference(X2,X3)) = intersection(X2,difference(X1,X3)),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_22,c_0_96]),c_0_96]) ).

cnf(c_0_102,plain,
    intersection(X1,intersection(intersection(X1,X2),X3)) = intersection(intersection(X1,X2),X3),
    inference(spm,[status(thm)],[c_0_97,c_0_98]) ).

cnf(c_0_103,plain,
    intersection(X1,difference(X1,X2)) = difference(X1,X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_99]),c_0_21])]) ).

fof(c_0_104,negated_conjecture,
    intersection(esk4_0,difference(esk5_0,esk6_0)) != difference(intersection(esk4_0,esk5_0),esk6_0),
    inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_100])])]) ).

cnf(c_0_105,plain,
    intersection(X1,difference(X2,difference(X1,X3))) = intersection(X2,intersection(X3,X1)),
    inference(spm,[status(thm)],[c_0_101,c_0_76]) ).

cnf(c_0_106,plain,
    difference(difference(X1,X2),difference(X3,X1)) = difference(X1,X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_51]),c_0_24])]) ).

cnf(c_0_107,plain,
    intersection(difference(X1,X2),X3) = intersection(X1,difference(X3,X2)),
    inference(spm,[status(thm)],[c_0_22,c_0_101]) ).

cnf(c_0_108,plain,
    intersection(X1,difference(intersection(X1,X2),X3)) = difference(intersection(X1,X2),X3),
    inference(spm,[status(thm)],[c_0_102,c_0_103]) ).

cnf(c_0_109,negated_conjecture,
    intersection(esk4_0,difference(esk5_0,esk6_0)) != difference(intersection(esk4_0,esk5_0),esk6_0),
    inference(split_conjunct,[status(thm)],[c_0_104]) ).

cnf(c_0_110,plain,
    difference(intersection(X1,X2),X3) = intersection(X2,difference(X1,X3)),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_105,c_0_106]),c_0_107]),c_0_108]) ).

cnf(c_0_111,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_109,c_0_110]),c_0_101])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem    : SET634+3 : TPTP v8.1.2. Released v2.2.0.
% 0.03/0.12  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.11/0.33  % Computer : n023.cluster.edu
% 0.11/0.33  % Model    : x86_64 x86_64
% 0.11/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.33  % Memory   : 8042.1875MB
% 0.11/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.33  % CPULimit   : 300
% 0.11/0.33  % WCLimit    : 300
% 0.11/0.33  % DateTime   : Sat Aug 26 14:50:56 EDT 2023
% 0.11/0.33  % CPUTime  : 
% 0.61/0.64  start to proof: theBenchmark
% 11.68/11.78  % Version  : CSE_E---1.5
% 11.68/11.78  % Problem  : theBenchmark.p
% 11.68/11.78  % Proof found
% 11.68/11.78  % SZS status Theorem for theBenchmark.p
% 11.68/11.78  % SZS output start Proof
% See solution above
% 11.68/11.78  % Total time : 11.126000 s
% 11.68/11.78  % SZS output end Proof
% 11.68/11.78  % Total time : 11.129000 s
%------------------------------------------------------------------------------