TSTP Solution File: SEU135+2 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : SEU135+2 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %d %s

% Computer : n012.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 16:22:39 EDT 2023

% Result   : Theorem 62.08s 62.12s
% Output   : CNFRefutation 62.08s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   15
%            Number of leaves      :   41
% Syntax   : Number of formulae    :  144 (  49 unt;  20 typ;   0 def)
%            Number of atoms       :  299 (  77 equ)
%            Maximal formula atoms :   20 (   2 avg)
%            Number of connectives :  283 ( 108   ~; 124   |;  33   &)
%                                         (  12 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   17 (   4 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   31 (  15   >;  16   *;   0   +;   0  <<)
%            Number of predicates  :    6 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :   16 (  16 usr;   5 con; 0-3 aty)
%            Number of variables   :  336 (  41 sgn; 126   !;   2   ?;   0   :)

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

tff(decl_23,type,
    set_union2: ( $i * $i ) > $i ).

tff(decl_24,type,
    set_intersection2: ( $i * $i ) > $i ).

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

tff(decl_26,type,
    empty_set: $i ).

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

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

tff(decl_29,type,
    empty: $i > $o ).

tff(decl_30,type,
    esk1_1: $i > $i ).

tff(decl_31,type,
    esk2_3: ( $i * $i * $i ) > $i ).

tff(decl_32,type,
    esk3_2: ( $i * $i ) > $i ).

tff(decl_33,type,
    esk4_3: ( $i * $i * $i ) > $i ).

tff(decl_34,type,
    esk5_3: ( $i * $i * $i ) > $i ).

tff(decl_35,type,
    esk6_0: $i ).

tff(decl_36,type,
    esk7_0: $i ).

tff(decl_37,type,
    esk8_2: ( $i * $i ) > $i ).

tff(decl_38,type,
    esk9_0: $i ).

tff(decl_39,type,
    esk10_0: $i ).

tff(decl_40,type,
    esk11_2: ( $i * $i ) > $i ).

tff(decl_41,type,
    esk12_2: ( $i * $i ) > $i ).

fof(t4_xboole_0,lemma,
    ! [X1,X2] :
      ( ~ ( ~ disjoint(X1,X2)
          & ! [X3] : ~ in(X3,set_intersection2(X1,X2)) )
      & ~ ( ? [X3] : in(X3,set_intersection2(X1,X2))
          & disjoint(X1,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_xboole_0) ).

fof(d3_xboole_0,axiom,
    ! [X1,X2,X3] :
      ( X3 = set_intersection2(X1,X2)
    <=> ! [X4] :
          ( in(X4,X3)
        <=> ( in(X4,X1)
            & in(X4,X2) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_xboole_0) ).

fof(t1_xboole_1,lemma,
    ! [X1,X2,X3] :
      ( ( subset(X1,X2)
        & subset(X2,X3) )
     => subset(X1,X3) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_xboole_1) ).

fof(t17_xboole_1,lemma,
    ! [X1,X2] : subset(set_intersection2(X1,X2),X1),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

fof(commutativity_k3_xboole_0,axiom,
    ! [X1,X2] : set_intersection2(X1,X2) = set_intersection2(X2,X1),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k3_xboole_0) ).

fof(d4_xboole_0,axiom,
    ! [X1,X2,X3] :
      ( X3 = set_difference(X1,X2)
    <=> ! [X4] :
          ( in(X4,X3)
        <=> ( in(X4,X1)
            & ~ in(X4,X2) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

fof(t12_xboole_1,lemma,
    ! [X1,X2] :
      ( subset(X1,X2)
     => set_union2(X1,X2) = X2 ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

fof(t33_xboole_1,lemma,
    ! [X1,X2,X3] :
      ( subset(X1,X2)
     => subset(set_difference(X1,X3),set_difference(X2,X3)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_xboole_1) ).

fof(t28_xboole_1,lemma,
    ! [X1,X2] :
      ( subset(X1,X2)
     => set_intersection2(X1,X2) = X1 ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

fof(t7_xboole_1,lemma,
    ! [X1,X2] : subset(X1,set_union2(X1,X2)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

fof(commutativity_k2_xboole_0,axiom,
    ! [X1,X2] : set_union2(X1,X2) = set_union2(X2,X1),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_xboole_0) ).

fof(d2_xboole_0,axiom,
    ! [X1,X2,X3] :
      ( X3 = set_union2(X1,X2)
    <=> ! [X4] :
          ( in(X4,X3)
        <=> ( in(X4,X1)
            | in(X4,X2) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_xboole_0) ).

fof(t3_boole,axiom,
    ! [X1] : set_difference(X1,empty_set) = X1,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_boole) ).

fof(d3_tarski,axiom,
    ! [X1,X2] :
      ( subset(X1,X2)
    <=> ! [X3] :
          ( in(X3,X1)
         => in(X3,X2) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

fof(t26_xboole_1,lemma,
    ! [X1,X2,X3] :
      ( subset(X1,X2)
     => subset(set_intersection2(X1,X3),set_intersection2(X2,X3)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t26_xboole_1) ).

fof(idempotence_k3_xboole_0,axiom,
    ! [X1,X2] : set_intersection2(X1,X1) = X1,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',idempotence_k3_xboole_0) ).

fof(d7_xboole_0,axiom,
    ! [X1,X2] :
      ( disjoint(X1,X2)
    <=> set_intersection2(X1,X2) = empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d7_xboole_0) ).

fof(t36_xboole_1,lemma,
    ! [X1,X2] : subset(set_difference(X1,X2),X1),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

fof(l32_xboole_1,lemma,
    ! [X1,X2] :
      ( set_difference(X1,X2) = empty_set
    <=> subset(X1,X2) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l32_xboole_1) ).

fof(t39_xboole_1,conjecture,
    ! [X1,X2] : set_union2(X1,set_difference(X2,X1)) = set_union2(X1,X2),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_xboole_1) ).

fof(d10_xboole_0,axiom,
    ! [X1,X2] :
      ( X1 = X2
    <=> ( subset(X1,X2)
        & subset(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

fof(c_0_21,lemma,
    ! [X1,X2] :
      ( ~ ( ~ disjoint(X1,X2)
          & ! [X3] : ~ in(X3,set_intersection2(X1,X2)) )
      & ~ ( ? [X3] : in(X3,set_intersection2(X1,X2))
          & disjoint(X1,X2) ) ),
    inference(fof_simplification,[status(thm)],[t4_xboole_0]) ).

fof(c_0_22,plain,
    ! [X32,X33,X34,X35,X36,X37,X38,X39] :
      ( ( in(X35,X32)
        | ~ in(X35,X34)
        | X34 != set_intersection2(X32,X33) )
      & ( in(X35,X33)
        | ~ in(X35,X34)
        | X34 != set_intersection2(X32,X33) )
      & ( ~ in(X36,X32)
        | ~ in(X36,X33)
        | in(X36,X34)
        | X34 != set_intersection2(X32,X33) )
      & ( ~ in(esk4_3(X37,X38,X39),X39)
        | ~ in(esk4_3(X37,X38,X39),X37)
        | ~ in(esk4_3(X37,X38,X39),X38)
        | X39 = set_intersection2(X37,X38) )
      & ( in(esk4_3(X37,X38,X39),X37)
        | in(esk4_3(X37,X38,X39),X39)
        | X39 = set_intersection2(X37,X38) )
      & ( in(esk4_3(X37,X38,X39),X38)
        | in(esk4_3(X37,X38,X39),X39)
        | X39 = set_intersection2(X37,X38) ) ),
    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)],[d3_xboole_0])])])])])]) ).

fof(c_0_23,lemma,
    ! [X73,X74,X75] :
      ( ~ subset(X73,X74)
      | ~ subset(X74,X75)
      | subset(X73,X75) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t1_xboole_1])]) ).

fof(c_0_24,lemma,
    ! [X67,X68] : subset(set_intersection2(X67,X68),X67),
    inference(variable_rename,[status(thm)],[t17_xboole_1]) ).

fof(c_0_25,plain,
    ! [X9,X10] : set_intersection2(X9,X10) = set_intersection2(X10,X9),
    inference(variable_rename,[status(thm)],[commutativity_k3_xboole_0]) ).

fof(c_0_26,plain,
    ! [X1,X2,X3] :
      ( X3 = set_difference(X1,X2)
    <=> ! [X4] :
          ( in(X4,X3)
        <=> ( in(X4,X1)
            & ~ in(X4,X2) ) ) ),
    inference(fof_simplification,[status(thm)],[d4_xboole_0]) ).

fof(c_0_27,lemma,
    ! [X104,X105,X107,X108,X109] :
      ( ( disjoint(X104,X105)
        | in(esk12_2(X104,X105),set_intersection2(X104,X105)) )
      & ( ~ in(X109,set_intersection2(X107,X108))
        | ~ disjoint(X107,X108) ) ),
    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_21])])])])]) ).

cnf(c_0_28,plain,
    ( in(X1,X2)
    | ~ in(X1,X3)
    | X3 != set_intersection2(X4,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_22]) ).

fof(c_0_29,lemma,
    ! [X65,X66] :
      ( ~ subset(X65,X66)
      | set_union2(X65,X66) = X66 ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t12_xboole_1])]) ).

fof(c_0_30,lemma,
    ! [X86,X87,X88] :
      ( ~ subset(X86,X87)
      | subset(set_difference(X86,X88),set_difference(X87,X88)) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t33_xboole_1])]) ).

cnf(c_0_31,lemma,
    ( subset(X1,X3)
    | ~ subset(X1,X2)
    | ~ subset(X2,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_23]) ).

cnf(c_0_32,lemma,
    subset(set_intersection2(X1,X2),X1),
    inference(split_conjunct,[status(thm)],[c_0_24]) ).

cnf(c_0_33,plain,
    set_intersection2(X1,X2) = set_intersection2(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_25]) ).

fof(c_0_34,lemma,
    ! [X79,X80] :
      ( ~ subset(X79,X80)
      | set_intersection2(X79,X80) = X79 ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t28_xboole_1])]) ).

fof(c_0_35,plain,
    ! [X41,X42,X43,X44,X45,X46,X47,X48] :
      ( ( in(X44,X41)
        | ~ in(X44,X43)
        | X43 != set_difference(X41,X42) )
      & ( ~ in(X44,X42)
        | ~ in(X44,X43)
        | X43 != set_difference(X41,X42) )
      & ( ~ in(X45,X41)
        | in(X45,X42)
        | in(X45,X43)
        | X43 != set_difference(X41,X42) )
      & ( ~ in(esk5_3(X46,X47,X48),X48)
        | ~ in(esk5_3(X46,X47,X48),X46)
        | in(esk5_3(X46,X47,X48),X47)
        | X48 = set_difference(X46,X47) )
      & ( in(esk5_3(X46,X47,X48),X46)
        | in(esk5_3(X46,X47,X48),X48)
        | X48 = set_difference(X46,X47) )
      & ( ~ in(esk5_3(X46,X47,X48),X47)
        | in(esk5_3(X46,X47,X48),X48)
        | X48 = set_difference(X46,X47) ) ),
    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)],[c_0_26])])])])])]) ).

cnf(c_0_36,lemma,
    ( disjoint(X1,X2)
    | in(esk12_2(X1,X2),set_intersection2(X1,X2)) ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_37,plain,
    ( in(X1,X2)
    | ~ in(X1,set_intersection2(X3,X2)) ),
    inference(er,[status(thm)],[c_0_28]) ).

fof(c_0_38,lemma,
    ! [X113,X114] : subset(X113,set_union2(X113,X114)),
    inference(variable_rename,[status(thm)],[t7_xboole_1]) ).

fof(c_0_39,plain,
    ! [X7,X8] : set_union2(X7,X8) = set_union2(X8,X7),
    inference(variable_rename,[status(thm)],[commutativity_k2_xboole_0]) ).

cnf(c_0_40,lemma,
    ( set_union2(X1,X2) = X2
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_29]) ).

cnf(c_0_41,lemma,
    ( subset(set_difference(X1,X3),set_difference(X2,X3))
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_30]) ).

cnf(c_0_42,lemma,
    ( subset(X1,X2)
    | ~ subset(X1,set_intersection2(X2,X3)) ),
    inference(spm,[status(thm)],[c_0_31,c_0_32]) ).

cnf(c_0_43,lemma,
    subset(set_intersection2(X1,X2),X2),
    inference(spm,[status(thm)],[c_0_32,c_0_33]) ).

cnf(c_0_44,lemma,
    ( set_intersection2(X1,X2) = X1
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_45,plain,
    ( ~ in(X1,X2)
    | ~ in(X1,X3)
    | X3 != set_difference(X4,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_35]) ).

cnf(c_0_46,lemma,
    ( disjoint(X1,X2)
    | in(esk12_2(X1,X2),set_intersection2(X2,X1)) ),
    inference(spm,[status(thm)],[c_0_36,c_0_33]) ).

cnf(c_0_47,lemma,
    ( disjoint(X1,X2)
    | in(esk12_2(X1,X2),X2) ),
    inference(spm,[status(thm)],[c_0_37,c_0_36]) ).

cnf(c_0_48,lemma,
    subset(X1,set_union2(X1,X2)),
    inference(split_conjunct,[status(thm)],[c_0_38]) ).

fof(c_0_49,plain,
    ! [X17,X18,X19,X20,X21,X22,X23,X24] :
      ( ( ~ in(X20,X19)
        | in(X20,X17)
        | in(X20,X18)
        | X19 != set_union2(X17,X18) )
      & ( ~ in(X21,X17)
        | in(X21,X19)
        | X19 != set_union2(X17,X18) )
      & ( ~ in(X21,X18)
        | in(X21,X19)
        | X19 != set_union2(X17,X18) )
      & ( ~ in(esk2_3(X22,X23,X24),X22)
        | ~ in(esk2_3(X22,X23,X24),X24)
        | X24 = set_union2(X22,X23) )
      & ( ~ in(esk2_3(X22,X23,X24),X23)
        | ~ in(esk2_3(X22,X23,X24),X24)
        | X24 = set_union2(X22,X23) )
      & ( in(esk2_3(X22,X23,X24),X24)
        | in(esk2_3(X22,X23,X24),X22)
        | in(esk2_3(X22,X23,X24),X23)
        | X24 = set_union2(X22,X23) ) ),
    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)],[d2_xboole_0])])])])])]) ).

cnf(c_0_50,plain,
    set_union2(X1,X2) = set_union2(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_39]) ).

cnf(c_0_51,lemma,
    ( set_union2(set_difference(X1,X2),set_difference(X3,X2)) = set_difference(X3,X2)
    | ~ subset(X1,X3) ),
    inference(spm,[status(thm)],[c_0_40,c_0_41]) ).

fof(c_0_52,plain,
    ! [X95] : set_difference(X95,empty_set) = X95,
    inference(variable_rename,[status(thm)],[t3_boole]) ).

cnf(c_0_53,lemma,
    subset(set_intersection2(X1,set_intersection2(X2,X3)),X2),
    inference(spm,[status(thm)],[c_0_42,c_0_43]) ).

cnf(c_0_54,lemma,
    set_intersection2(X1,set_intersection2(X2,X1)) = set_intersection2(X2,X1),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_44,c_0_43]),c_0_33]) ).

cnf(c_0_55,plain,
    ( ~ in(X1,set_difference(X2,X3))
    | ~ in(X1,X3) ),
    inference(er,[status(thm)],[c_0_45]) ).

cnf(c_0_56,lemma,
    ( disjoint(X1,X2)
    | in(esk12_2(X1,X2),X1) ),
    inference(spm,[status(thm)],[c_0_37,c_0_46]) ).

cnf(c_0_57,lemma,
    ( disjoint(X1,set_intersection2(X2,X3))
    | in(esk12_2(X1,set_intersection2(X2,X3)),X3) ),
    inference(spm,[status(thm)],[c_0_37,c_0_47]) ).

cnf(c_0_58,lemma,
    set_intersection2(X1,set_union2(X1,X2)) = X1,
    inference(spm,[status(thm)],[c_0_44,c_0_48]) ).

fof(c_0_59,plain,
    ! [X26,X27,X28,X29,X30] :
      ( ( ~ subset(X26,X27)
        | ~ in(X28,X26)
        | in(X28,X27) )
      & ( in(esk3_2(X29,X30),X29)
        | subset(X29,X30) )
      & ( ~ in(esk3_2(X29,X30),X30)
        | subset(X29,X30) ) ),
    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)],[d3_tarski])])])])])]) ).

cnf(c_0_60,plain,
    ( in(X1,X3)
    | in(X1,X4)
    | ~ in(X1,X2)
    | X4 != set_difference(X2,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_35]) ).

cnf(c_0_61,plain,
    ( in(X1,X2)
    | ~ in(X1,X3)
    | X3 != set_difference(X2,X4) ),
    inference(split_conjunct,[status(thm)],[c_0_35]) ).

cnf(c_0_62,plain,
    ( in(X1,X3)
    | ~ in(X1,X2)
    | X3 != set_union2(X4,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_49]) ).

cnf(c_0_63,lemma,
    ( set_union2(set_difference(X1,X2),set_difference(X3,X2)) = set_difference(X1,X2)
    | ~ subset(X3,X1) ),
    inference(spm,[status(thm)],[c_0_50,c_0_51]) ).

cnf(c_0_64,plain,
    set_difference(X1,empty_set) = X1,
    inference(split_conjunct,[status(thm)],[c_0_52]) ).

cnf(c_0_65,lemma,
    subset(set_intersection2(X1,set_intersection2(X2,X3)),X3),
    inference(spm,[status(thm)],[c_0_53,c_0_54]) ).

cnf(c_0_66,plain,
    ( in(X1,X3)
    | in(X1,X4)
    | ~ in(X1,X2)
    | X2 != set_union2(X3,X4) ),
    inference(split_conjunct,[status(thm)],[c_0_49]) ).

fof(c_0_67,lemma,
    ! [X76,X77,X78] :
      ( ~ subset(X76,X77)
      | subset(set_intersection2(X76,X78),set_intersection2(X77,X78)) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t26_xboole_1])]) ).

fof(c_0_68,plain,
    ! [X57] : set_intersection2(X57,X57) = X57,
    inference(variable_rename,[status(thm)],[inference(fof_simplification,[status(thm)],[idempotence_k3_xboole_0])]) ).

fof(c_0_69,plain,
    ! [X50,X51] :
      ( ( ~ disjoint(X50,X51)
        | set_intersection2(X50,X51) = empty_set )
      & ( set_intersection2(X50,X51) != empty_set
        | disjoint(X50,X51) ) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[d7_xboole_0])]) ).

cnf(c_0_70,lemma,
    ( disjoint(set_difference(X1,X2),X3)
    | ~ in(esk12_2(set_difference(X1,X2),X3),X2) ),
    inference(spm,[status(thm)],[c_0_55,c_0_56]) ).

cnf(c_0_71,lemma,
    ( disjoint(X1,X2)
    | in(esk12_2(X1,X2),set_union2(X2,X3)) ),
    inference(spm,[status(thm)],[c_0_57,c_0_58]) ).

cnf(c_0_72,plain,
    ( in(esk3_2(X1,X2),X1)
    | subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_59]) ).

cnf(c_0_73,plain,
    ( subset(X1,X2)
    | ~ in(esk3_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[c_0_59]) ).

cnf(c_0_74,plain,
    ( in(X1,set_difference(X2,X3))
    | in(X1,X3)
    | ~ in(X1,X2) ),
    inference(er,[status(thm)],[c_0_60]) ).

cnf(c_0_75,plain,
    ( in(X1,X2)
    | ~ in(X1,set_difference(X2,X3)) ),
    inference(er,[status(thm)],[c_0_61]) ).

fof(c_0_76,lemma,
    ! [X89,X90] : subset(set_difference(X89,X90),X89),
    inference(variable_rename,[status(thm)],[t36_xboole_1]) ).

cnf(c_0_77,plain,
    ( in(X1,set_union2(X2,X3))
    | ~ in(X1,X3) ),
    inference(er,[status(thm)],[c_0_62]) ).

cnf(c_0_78,lemma,
    ( set_union2(X1,X2) = X1
    | ~ subset(X2,X1) ),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_63,c_0_64]),c_0_64]),c_0_64]) ).

cnf(c_0_79,lemma,
    subset(set_intersection2(X1,X2),set_union2(X2,X3)),
    inference(spm,[status(thm)],[c_0_65,c_0_58]) ).

cnf(c_0_80,plain,
    ( in(X1,X2)
    | in(X1,X3)
    | ~ in(X1,set_union2(X3,X2)) ),
    inference(er,[status(thm)],[c_0_66]) ).

cnf(c_0_81,lemma,
    ( subset(set_intersection2(X1,X3),set_intersection2(X2,X3))
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_67]) ).

cnf(c_0_82,plain,
    set_intersection2(X1,X1) = X1,
    inference(split_conjunct,[status(thm)],[c_0_68]) ).

cnf(c_0_83,plain,
    ( set_intersection2(X1,X2) = empty_set
    | ~ disjoint(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_69]) ).

cnf(c_0_84,lemma,
    disjoint(set_difference(X1,set_union2(X2,X3)),X2),
    inference(spm,[status(thm)],[c_0_70,c_0_71]) ).

cnf(c_0_85,plain,
    ( subset(set_difference(X1,X2),X3)
    | ~ in(esk3_2(set_difference(X1,X2),X3),X2) ),
    inference(spm,[status(thm)],[c_0_55,c_0_72]) ).

cnf(c_0_86,plain,
    ( subset(X1,set_difference(X2,X3))
    | in(esk3_2(X1,set_difference(X2,X3)),X3)
    | ~ in(esk3_2(X1,set_difference(X2,X3)),X2) ),
    inference(spm,[status(thm)],[c_0_73,c_0_74]) ).

cnf(c_0_87,plain,
    ( subset(set_difference(X1,X2),X3)
    | in(esk3_2(set_difference(X1,X2),X3),X1) ),
    inference(spm,[status(thm)],[c_0_75,c_0_72]) ).

cnf(c_0_88,lemma,
    subset(set_difference(X1,X2),X1),
    inference(split_conjunct,[status(thm)],[c_0_76]) ).

cnf(c_0_89,plain,
    ( subset(X1,set_union2(X2,X3))
    | ~ in(esk3_2(X1,set_union2(X2,X3)),X3) ),
    inference(spm,[status(thm)],[c_0_73,c_0_77]) ).

cnf(c_0_90,lemma,
    set_union2(set_union2(X1,X2),set_intersection2(X3,X1)) = set_union2(X1,X2),
    inference(spm,[status(thm)],[c_0_78,c_0_79]) ).

cnf(c_0_91,plain,
    ( subset(set_union2(X1,X2),X3)
    | in(esk3_2(set_union2(X1,X2),X3),X1)
    | in(esk3_2(set_union2(X1,X2),X3),X2) ),
    inference(spm,[status(thm)],[c_0_80,c_0_72]) ).

cnf(c_0_92,lemma,
    ( subset(X1,set_intersection2(X2,X1))
    | ~ subset(X1,X2) ),
    inference(spm,[status(thm)],[c_0_81,c_0_82]) ).

cnf(c_0_93,lemma,
    set_intersection2(X1,set_difference(X2,set_union2(X1,X3))) = empty_set,
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_83,c_0_84]),c_0_33]) ).

cnf(c_0_94,plain,
    ( subset(set_difference(X1,set_union2(X2,X3)),X4)
    | ~ in(esk3_2(set_difference(X1,set_union2(X2,X3)),X4),X3) ),
    inference(spm,[status(thm)],[c_0_85,c_0_77]) ).

cnf(c_0_95,plain,
    ( subset(set_difference(X1,X2),set_difference(X1,X3))
    | in(esk3_2(set_difference(X1,X2),set_difference(X1,X3)),X3) ),
    inference(spm,[status(thm)],[c_0_86,c_0_87]) ).

cnf(c_0_96,lemma,
    subset(set_difference(set_intersection2(X1,X2),X3),X1),
    inference(spm,[status(thm)],[c_0_42,c_0_88]) ).

cnf(c_0_97,lemma,
    ( subset(X1,set_union2(X2,X3))
    | ~ in(esk3_2(X1,set_union2(X2,X3)),set_intersection2(X4,X2)) ),
    inference(spm,[status(thm)],[c_0_89,c_0_90]) ).

cnf(c_0_98,plain,
    ( subset(set_union2(X1,X2),set_union2(X3,X1))
    | in(esk3_2(set_union2(X1,X2),set_union2(X3,X1)),X2) ),
    inference(spm,[status(thm)],[c_0_89,c_0_91]) ).

fof(c_0_99,lemma,
    ! [X58,X59] :
      ( ( set_difference(X58,X59) != empty_set
        | subset(X58,X59) )
      & ( ~ subset(X58,X59)
        | set_difference(X58,X59) = empty_set ) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[l32_xboole_1])]) ).

cnf(c_0_100,lemma,
    ( subset(set_difference(X1,set_union2(X2,X3)),empty_set)
    | ~ subset(set_difference(X1,set_union2(X2,X3)),X2) ),
    inference(spm,[status(thm)],[c_0_92,c_0_93]) ).

cnf(c_0_101,plain,
    subset(set_difference(X1,set_union2(X2,X3)),set_difference(X1,X3)),
    inference(spm,[status(thm)],[c_0_94,c_0_95]) ).

cnf(c_0_102,lemma,
    subset(set_difference(set_intersection2(X1,X2),X3),X2),
    inference(spm,[status(thm)],[c_0_96,c_0_54]) ).

cnf(c_0_103,lemma,
    subset(set_union2(X1,set_intersection2(X2,X3)),set_union2(X3,X1)),
    inference(spm,[status(thm)],[c_0_97,c_0_98]) ).

cnf(c_0_104,lemma,
    ( subset(X1,X2)
    | set_difference(X1,X2) != empty_set ),
    inference(split_conjunct,[status(thm)],[c_0_99]) ).

cnf(c_0_105,lemma,
    ( set_difference(X1,X2) = empty_set
    | ~ subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_99]) ).

cnf(c_0_106,lemma,
    subset(set_difference(X1,set_union2(X2,set_difference(X1,X2))),empty_set),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_100,c_0_101]),c_0_50]) ).

cnf(c_0_107,lemma,
    subset(set_difference(X1,X2),set_union2(X1,X3)),
    inference(spm,[status(thm)],[c_0_102,c_0_58]) ).

cnf(c_0_108,lemma,
    subset(set_union2(X1,set_intersection2(X2,X3)),set_union2(X1,X3)),
    inference(spm,[status(thm)],[c_0_103,c_0_50]) ).

cnf(c_0_109,lemma,
    ( set_union2(X1,X2) = X2
    | set_difference(X1,X2) != empty_set ),
    inference(spm,[status(thm)],[c_0_40,c_0_104]) ).

cnf(c_0_110,lemma,
    set_difference(X1,set_union2(X2,set_difference(X1,X2))) = empty_set,
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_105,c_0_106]),c_0_64]) ).

cnf(c_0_111,lemma,
    set_union2(set_union2(X1,X2),set_difference(X1,X3)) = set_union2(X1,X2),
    inference(spm,[status(thm)],[c_0_78,c_0_107]) ).

fof(c_0_112,negated_conjecture,
    ~ ! [X1,X2] : set_union2(X1,set_difference(X2,X1)) = set_union2(X1,X2),
    inference(assume_negation,[status(cth)],[t39_xboole_1]) ).

fof(c_0_113,plain,
    ! [X11,X12] :
      ( ( subset(X11,X12)
        | X11 != X12 )
      & ( subset(X12,X11)
        | X11 != X12 )
      & ( ~ subset(X11,X12)
        | ~ subset(X12,X11)
        | X11 = X12 ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[d10_xboole_0])])]) ).

cnf(c_0_114,lemma,
    subset(set_union2(X1,X2),set_union2(X1,set_union2(X2,X3))),
    inference(spm,[status(thm)],[c_0_108,c_0_58]) ).

cnf(c_0_115,lemma,
    set_union2(X1,set_union2(X2,set_difference(X1,X2))) = set_union2(X2,set_difference(X1,X2)),
    inference(spm,[status(thm)],[c_0_109,c_0_110]) ).

cnf(c_0_116,lemma,
    ( subset(X1,set_union2(X2,X3))
    | ~ in(esk3_2(X1,set_union2(X2,X3)),set_difference(X2,X4)) ),
    inference(spm,[status(thm)],[c_0_89,c_0_111]) ).

fof(c_0_117,negated_conjecture,
    set_union2(esk9_0,set_difference(esk10_0,esk9_0)) != set_union2(esk9_0,esk10_0),
    inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_112])])]) ).

cnf(c_0_118,plain,
    ( X1 = X2
    | ~ subset(X1,X2)
    | ~ subset(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_113]) ).

cnf(c_0_119,lemma,
    subset(set_union2(X1,X2),set_union2(X2,set_difference(X1,X2))),
    inference(spm,[status(thm)],[c_0_114,c_0_115]) ).

cnf(c_0_120,lemma,
    subset(set_union2(X1,set_difference(X2,X3)),set_union2(X2,X1)),
    inference(spm,[status(thm)],[c_0_116,c_0_98]) ).

cnf(c_0_121,negated_conjecture,
    set_union2(esk9_0,set_difference(esk10_0,esk9_0)) != set_union2(esk9_0,esk10_0),
    inference(split_conjunct,[status(thm)],[c_0_117]) ).

cnf(c_0_122,lemma,
    set_union2(X1,set_difference(X2,X1)) = set_union2(X2,X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_118,c_0_119]),c_0_120])]) ).

cnf(c_0_123,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_121,c_0_122]),c_0_50])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.14  % Problem    : SEU135+2 : TPTP v8.1.2. Released v3.3.0.
% 0.00/0.14  % Command    : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %d %s
% 0.14/0.36  % Computer : n012.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit   : 300
% 0.14/0.36  % WCLimit    : 300
% 0.14/0.36  % DateTime   : Wed Aug 23 19:25:12 EDT 2023
% 0.14/0.36  % CPUTime  : 
% 0.23/0.59  start to proof: theBenchmark
% 62.08/62.12  % Version  : CSE_E---1.5
% 62.08/62.12  % Problem  : theBenchmark.p
% 62.08/62.12  % Proof found
% 62.08/62.12  % SZS status Theorem for theBenchmark.p
% 62.08/62.12  % SZS output start Proof
% See solution above
% 62.08/62.13  % Total time : 61.510000 s
% 62.08/62.13  % SZS output end Proof
% 62.08/62.13  % Total time : 61.516000 s
%------------------------------------------------------------------------------