TSTP Solution File: SET918+1 by CSE_E---1.5

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%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : SET918+1 : TPTP v8.1.2. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s

% Computer : n015.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 14:36:16 EDT 2023

% Result   : Theorem 0.19s 0.57s
% Output   : CNFRefutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :   19
% Syntax   : Number of formulae    :   42 (  13 unt;  13 typ;   0 def)
%            Number of atoms       :  106 (  57 equ)
%            Maximal formula atoms :   20 (   3 avg)
%            Number of connectives :  124 (  47   ~;  51   |;  20   &)
%                                         (   6 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   17 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   16 (   8   >;   8   *;   0   +;   0  <<)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :   11 (  11 usr;   5 con; 0-3 aty)
%            Number of variables   :   71 (   2 sgn;  47   !;   0   ?;   0   :)

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

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

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

tff(decl_25,type,
    singleton: $i > $i ).

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

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

tff(decl_28,type,
    esk2_3: ( $i * $i * $i ) > $i ).

tff(decl_29,type,
    esk3_3: ( $i * $i * $i ) > $i ).

tff(decl_30,type,
    esk4_0: $i ).

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

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

tff(decl_33,type,
    esk7_0: $i ).

tff(decl_34,type,
    esk8_0: $i ).

fof(t59_zfmisc_1,conjecture,
    ! [X1,X2,X3] :
      ~ ( set_intersection2(unordered_pair(X1,X2),X3) = singleton(X1)
        & in(X2,X3)
        & X1 != X2 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t59_zfmisc_1) ).

fof(commutativity_k2_tarski,axiom,
    ! [X1,X2] : unordered_pair(X1,X2) = unordered_pair(X2,X1),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

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/sandbox2/benchmark/theBenchmark.p',d3_xboole_0) ).

fof(commutativity_k3_xboole_0,axiom,
    ! [X1,X2] : set_intersection2(X1,X2) = set_intersection2(X2,X1),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k3_xboole_0) ).

fof(d1_tarski,axiom,
    ! [X1,X2] :
      ( X2 = singleton(X1)
    <=> ! [X3] :
          ( in(X3,X2)
        <=> X3 = X1 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_tarski) ).

fof(d2_tarski,axiom,
    ! [X1,X2,X3] :
      ( X3 = unordered_pair(X1,X2)
    <=> ! [X4] :
          ( in(X4,X3)
        <=> ( X4 = X1
            | X4 = X2 ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_tarski) ).

fof(c_0_6,negated_conjecture,
    ~ ! [X1,X2,X3] :
        ~ ( set_intersection2(unordered_pair(X1,X2),X3) = singleton(X1)
          & in(X2,X3)
          & X1 != X2 ),
    inference(assume_negation,[status(cth)],[t59_zfmisc_1]) ).

fof(c_0_7,negated_conjecture,
    ( set_intersection2(unordered_pair(esk6_0,esk7_0),esk8_0) = singleton(esk6_0)
    & in(esk7_0,esk8_0)
    & esk6_0 != esk7_0 ),
    inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_6])])]) ).

fof(c_0_8,plain,
    ! [X7,X8] : unordered_pair(X7,X8) = unordered_pair(X8,X7),
    inference(variable_rename,[status(thm)],[commutativity_k2_tarski]) ).

fof(c_0_9,plain,
    ! [X27,X28,X29,X30,X31,X32,X33,X34] :
      ( ( in(X30,X27)
        | ~ in(X30,X29)
        | X29 != set_intersection2(X27,X28) )
      & ( in(X30,X28)
        | ~ in(X30,X29)
        | X29 != set_intersection2(X27,X28) )
      & ( ~ in(X31,X27)
        | ~ in(X31,X28)
        | in(X31,X29)
        | X29 != set_intersection2(X27,X28) )
      & ( ~ in(esk3_3(X32,X33,X34),X34)
        | ~ in(esk3_3(X32,X33,X34),X32)
        | ~ in(esk3_3(X32,X33,X34),X33)
        | X34 = set_intersection2(X32,X33) )
      & ( in(esk3_3(X32,X33,X34),X32)
        | in(esk3_3(X32,X33,X34),X34)
        | X34 = set_intersection2(X32,X33) )
      & ( in(esk3_3(X32,X33,X34),X33)
        | in(esk3_3(X32,X33,X34),X34)
        | X34 = set_intersection2(X32,X33) ) ),
    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])])])])])]) ).

cnf(c_0_10,negated_conjecture,
    set_intersection2(unordered_pair(esk6_0,esk7_0),esk8_0) = singleton(esk6_0),
    inference(split_conjunct,[status(thm)],[c_0_7]) ).

cnf(c_0_11,plain,
    unordered_pair(X1,X2) = unordered_pair(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_8]) ).

fof(c_0_12,plain,
    ! [X9,X10] : set_intersection2(X9,X10) = set_intersection2(X10,X9),
    inference(variable_rename,[status(thm)],[commutativity_k3_xboole_0]) ).

fof(c_0_13,plain,
    ! [X11,X12,X13,X14,X15,X16] :
      ( ( ~ in(X13,X12)
        | X13 = X11
        | X12 != singleton(X11) )
      & ( X14 != X11
        | in(X14,X12)
        | X12 != singleton(X11) )
      & ( ~ in(esk1_2(X15,X16),X16)
        | esk1_2(X15,X16) != X15
        | X16 = singleton(X15) )
      & ( in(esk1_2(X15,X16),X16)
        | esk1_2(X15,X16) = X15
        | X16 = singleton(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)],[d1_tarski])])])])])]) ).

cnf(c_0_14,plain,
    ( in(X1,X4)
    | ~ in(X1,X2)
    | ~ in(X1,X3)
    | X4 != set_intersection2(X2,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_9]) ).

cnf(c_0_15,negated_conjecture,
    set_intersection2(unordered_pair(esk7_0,esk6_0),esk8_0) = singleton(esk6_0),
    inference(rw,[status(thm)],[c_0_10,c_0_11]) ).

cnf(c_0_16,plain,
    set_intersection2(X1,X2) = set_intersection2(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_17,plain,
    ( X1 = X3
    | ~ in(X1,X2)
    | X2 != singleton(X3) ),
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

cnf(c_0_18,plain,
    ( in(X1,set_intersection2(X2,X3))
    | ~ in(X1,X3)
    | ~ in(X1,X2) ),
    inference(er,[status(thm)],[c_0_14]) ).

cnf(c_0_19,negated_conjecture,
    set_intersection2(esk8_0,unordered_pair(esk7_0,esk6_0)) = singleton(esk6_0),
    inference(rw,[status(thm)],[c_0_15,c_0_16]) ).

fof(c_0_20,plain,
    ! [X18,X19,X20,X21,X22,X23,X24,X25] :
      ( ( ~ in(X21,X20)
        | X21 = X18
        | X21 = X19
        | X20 != unordered_pair(X18,X19) )
      & ( X22 != X18
        | in(X22,X20)
        | X20 != unordered_pair(X18,X19) )
      & ( X22 != X19
        | in(X22,X20)
        | X20 != unordered_pair(X18,X19) )
      & ( esk2_3(X23,X24,X25) != X23
        | ~ in(esk2_3(X23,X24,X25),X25)
        | X25 = unordered_pair(X23,X24) )
      & ( esk2_3(X23,X24,X25) != X24
        | ~ in(esk2_3(X23,X24,X25),X25)
        | X25 = unordered_pair(X23,X24) )
      & ( in(esk2_3(X23,X24,X25),X25)
        | esk2_3(X23,X24,X25) = X23
        | esk2_3(X23,X24,X25) = X24
        | X25 = unordered_pair(X23,X24) ) ),
    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_tarski])])])])])]) ).

cnf(c_0_21,plain,
    ( X1 = X2
    | ~ in(X1,singleton(X2)) ),
    inference(er,[status(thm)],[c_0_17]) ).

cnf(c_0_22,negated_conjecture,
    ( in(X1,singleton(esk6_0))
    | ~ in(X1,unordered_pair(esk7_0,esk6_0))
    | ~ in(X1,esk8_0) ),
    inference(spm,[status(thm)],[c_0_18,c_0_19]) ).

cnf(c_0_23,plain,
    ( in(X1,X3)
    | X1 != X2
    | X3 != unordered_pair(X2,X4) ),
    inference(split_conjunct,[status(thm)],[c_0_20]) ).

cnf(c_0_24,negated_conjecture,
    ( X1 = esk6_0
    | ~ in(X1,unordered_pair(esk7_0,esk6_0))
    | ~ in(X1,esk8_0) ),
    inference(spm,[status(thm)],[c_0_21,c_0_22]) ).

cnf(c_0_25,plain,
    in(X1,unordered_pair(X1,X2)),
    inference(er,[status(thm)],[inference(er,[status(thm)],[c_0_23])]) ).

cnf(c_0_26,negated_conjecture,
    in(esk7_0,esk8_0),
    inference(split_conjunct,[status(thm)],[c_0_7]) ).

cnf(c_0_27,negated_conjecture,
    esk6_0 != esk7_0,
    inference(split_conjunct,[status(thm)],[c_0_7]) ).

cnf(c_0_28,negated_conjecture,
    $false,
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_24,c_0_25]),c_0_26])]),c_0_27]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : SET918+1 : TPTP v8.1.2. Released v3.2.0.
% 0.00/0.13  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.13/0.34  % Computer : n015.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit   : 300
% 0.13/0.34  % WCLimit    : 300
% 0.13/0.34  % DateTime   : Sat Aug 26 14:36:08 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.19/0.56  start to proof: theBenchmark
% 0.19/0.57  % Version  : CSE_E---1.5
% 0.19/0.57  % Problem  : theBenchmark.p
% 0.19/0.57  % Proof found
% 0.19/0.57  % SZS status Theorem for theBenchmark.p
% 0.19/0.57  % SZS output start Proof
% See solution above
% 0.19/0.58  % Total time : 0.008000 s
% 0.19/0.58  % SZS output end Proof
% 0.19/0.58  % Total time : 0.011000 s
%------------------------------------------------------------------------------