TSTP Solution File: SEU236+3 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : SEU236+3 : 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 : 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 16:23:40 EDT 2023

% Result   : Theorem 2.62s 2.77s
% Output   : CNFRefutation 2.62s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   17
%            Number of leaves      :   50
% Syntax   : Number of formulae    :  114 (  20 unt;  37 typ;   0 def)
%            Number of atoms       :  208 (  20 equ)
%            Maximal formula atoms :   12 (   2 avg)
%            Number of connectives :  204 (  73   ~;  85   |;  25   &)
%                                         (   7 <=>;  14  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   28 (  21   >;   7   *;   0   +;   0  <<)
%            Number of predicates  :   15 (  13 usr;   1 prp; 0-2 aty)
%            Number of functors    :   24 (  24 usr;  16 con; 0-2 aty)
%            Number of variables   :  102 (   0 sgn;  59   !;   0   ?;   0   :)

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

tff(decl_23,type,
    empty: $i > $o ).

tff(decl_24,type,
    function: $i > $o ).

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

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

tff(decl_27,type,
    epsilon_connected: $i > $o ).

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

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

tff(decl_30,type,
    set_union2: ( $i * $i ) > $i ).

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

tff(decl_32,type,
    succ: $i > $i ).

tff(decl_33,type,
    singleton: $i > $i ).

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

tff(decl_35,type,
    element: ( $i * $i ) > $o ).

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

tff(decl_37,type,
    relation_empty_yielding: $i > $o ).

tff(decl_38,type,
    relation_non_empty: $i > $o ).

tff(decl_39,type,
    powerset: $i > $i ).

tff(decl_40,type,
    esk1_2: ( $i * $i ) > $i ).

tff(decl_41,type,
    esk2_1: $i > $i ).

tff(decl_42,type,
    esk3_2: ( $i * $i ) > $i ).

tff(decl_43,type,
    esk4_1: $i > $i ).

tff(decl_44,type,
    esk5_0: $i ).

tff(decl_45,type,
    esk6_0: $i ).

tff(decl_46,type,
    esk7_0: $i ).

tff(decl_47,type,
    esk8_0: $i ).

tff(decl_48,type,
    esk9_0: $i ).

tff(decl_49,type,
    esk10_0: $i ).

tff(decl_50,type,
    esk11_0: $i ).

tff(decl_51,type,
    esk12_0: $i ).

tff(decl_52,type,
    esk13_0: $i ).

tff(decl_53,type,
    esk14_0: $i ).

tff(decl_54,type,
    esk15_0: $i ).

tff(decl_55,type,
    esk16_0: $i ).

tff(decl_56,type,
    esk17_0: $i ).

tff(decl_57,type,
    esk18_0: $i ).

tff(decl_58,type,
    esk19_0: $i ).

fof(fc3_ordinal1,axiom,
    ! [X1] :
      ( ordinal(X1)
     => ( ~ empty(succ(X1))
        & epsilon_transitive(succ(X1))
        & epsilon_connected(succ(X1))
        & ordinal(succ(X1)) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc3_ordinal1) ).

fof(t33_ordinal1,conjecture,
    ! [X1] :
      ( ordinal(X1)
     => ! [X2] :
          ( ordinal(X2)
         => ( in(X1,X2)
          <=> ordinal_subset(succ(X1),X2) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t33_ordinal1) ).

fof(d1_ordinal1,axiom,
    ! [X1] : succ(X1) = set_union2(X1,singleton(X1)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_ordinal1) ).

fof(connectedness_r1_ordinal1,axiom,
    ! [X1,X2] :
      ( ( ordinal(X1)
        & ordinal(X2) )
     => ( ordinal_subset(X1,X2)
        | ordinal_subset(X2,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',connectedness_r1_ordinal1) ).

fof(redefinition_r1_ordinal1,axiom,
    ! [X1,X2] :
      ( ( ordinal(X1)
        & ordinal(X2) )
     => ( ordinal_subset(X1,X2)
      <=> subset(X1,X2) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',redefinition_r1_ordinal1) ).

fof(cc1_ordinal1,axiom,
    ! [X1] :
      ( ordinal(X1)
     => ( epsilon_transitive(X1)
        & epsilon_connected(X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cc1_ordinal1) ).

fof(d2_ordinal1,axiom,
    ! [X1] :
      ( epsilon_transitive(X1)
    <=> ! [X2] :
          ( in(X2,X1)
         => subset(X2,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_ordinal1) ).

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

fof(t10_ordinal1,axiom,
    ! [X1] : in(X1,succ(X1)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t10_ordinal1) ).

fof(antisymmetry_r2_hidden,axiom,
    ! [X1,X2] :
      ( in(X1,X2)
     => ~ in(X2,X1) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

fof(t8_xboole_1,axiom,
    ! [X1,X2,X3] :
      ( ( subset(X1,X2)
        & subset(X3,X2) )
     => subset(set_union2(X1,X3),X2) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t8_xboole_1) ).

fof(commutativity_k2_xboole_0,axiom,
    ! [X1,X2] : set_union2(X1,X2) = set_union2(X2,X1),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_xboole_0) ).

fof(c_0_13,plain,
    ! [X1] :
      ( ordinal(X1)
     => ( ~ empty(succ(X1))
        & epsilon_transitive(succ(X1))
        & epsilon_connected(succ(X1))
        & ordinal(succ(X1)) ) ),
    inference(fof_simplification,[status(thm)],[fc3_ordinal1]) ).

fof(c_0_14,negated_conjecture,
    ~ ! [X1] :
        ( ordinal(X1)
       => ! [X2] :
            ( ordinal(X2)
           => ( in(X1,X2)
            <=> ordinal_subset(succ(X1),X2) ) ) ),
    inference(assume_negation,[status(cth)],[t33_ordinal1]) ).

fof(c_0_15,plain,
    ! [X41] :
      ( ( ~ empty(succ(X41))
        | ~ ordinal(X41) )
      & ( epsilon_transitive(succ(X41))
        | ~ ordinal(X41) )
      & ( epsilon_connected(succ(X41))
        | ~ ordinal(X41) )
      & ( ordinal(succ(X41))
        | ~ ordinal(X41) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_13])])]) ).

fof(c_0_16,plain,
    ! [X16] : succ(X16) = set_union2(X16,singleton(X16)),
    inference(variable_rename,[status(thm)],[d1_ordinal1]) ).

fof(c_0_17,plain,
    ! [X14,X15] :
      ( ~ ordinal(X14)
      | ~ ordinal(X15)
      | ordinal_subset(X14,X15)
      | ordinal_subset(X15,X14) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[connectedness_r1_ordinal1])]) ).

fof(c_0_18,negated_conjecture,
    ( ordinal(esk18_0)
    & ordinal(esk19_0)
    & ( ~ in(esk18_0,esk19_0)
      | ~ ordinal_subset(succ(esk18_0),esk19_0) )
    & ( in(esk18_0,esk19_0)
      | ordinal_subset(succ(esk18_0),esk19_0) ) ),
    inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_14])])]) ).

cnf(c_0_19,plain,
    ( ordinal(succ(X1))
    | ~ ordinal(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_15]) ).

cnf(c_0_20,plain,
    succ(X1) = set_union2(X1,singleton(X1)),
    inference(split_conjunct,[status(thm)],[c_0_16]) ).

cnf(c_0_21,plain,
    ( ordinal_subset(X1,X2)
    | ordinal_subset(X2,X1)
    | ~ ordinal(X1)
    | ~ ordinal(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

cnf(c_0_22,negated_conjecture,
    ordinal(esk19_0),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

fof(c_0_23,plain,
    ! [X58,X59] :
      ( ( ~ ordinal_subset(X58,X59)
        | subset(X58,X59)
        | ~ ordinal(X58)
        | ~ ordinal(X59) )
      & ( ~ subset(X58,X59)
        | ordinal_subset(X58,X59)
        | ~ ordinal(X58)
        | ~ ordinal(X59) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[redefinition_r1_ordinal1])])]) ).

cnf(c_0_24,negated_conjecture,
    ( in(esk18_0,esk19_0)
    | ordinal_subset(succ(esk18_0),esk19_0) ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_25,plain,
    ( ordinal(set_union2(X1,singleton(X1)))
    | ~ ordinal(X1) ),
    inference(rw,[status(thm)],[c_0_19,c_0_20]) ).

cnf(c_0_26,negated_conjecture,
    ordinal(esk18_0),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

fof(c_0_27,plain,
    ! [X7] :
      ( ( epsilon_transitive(X7)
        | ~ ordinal(X7) )
      & ( epsilon_connected(X7)
        | ~ ordinal(X7) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[cc1_ordinal1])])]) ).

cnf(c_0_28,negated_conjecture,
    ( ordinal_subset(esk19_0,X1)
    | ordinal_subset(X1,esk19_0)
    | ~ ordinal(X1) ),
    inference(spm,[status(thm)],[c_0_21,c_0_22]) ).

fof(c_0_29,plain,
    ! [X24,X25,X26] :
      ( ( ~ epsilon_transitive(X24)
        | ~ in(X25,X24)
        | subset(X25,X24) )
      & ( in(esk2_1(X26),X26)
        | epsilon_transitive(X26) )
      & ( ~ subset(esk2_1(X26),X26)
        | epsilon_transitive(X26) ) ),
    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_ordinal1])])])])])]) ).

cnf(c_0_30,plain,
    ( subset(X1,X2)
    | ~ ordinal_subset(X1,X2)
    | ~ ordinal(X1)
    | ~ ordinal(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_23]) ).

cnf(c_0_31,negated_conjecture,
    ( in(esk18_0,esk19_0)
    | ordinal_subset(set_union2(esk18_0,singleton(esk18_0)),esk19_0) ),
    inference(rw,[status(thm)],[c_0_24,c_0_20]) ).

cnf(c_0_32,negated_conjecture,
    ordinal(set_union2(esk18_0,singleton(esk18_0))),
    inference(spm,[status(thm)],[c_0_25,c_0_26]) ).

cnf(c_0_33,plain,
    ( epsilon_transitive(X1)
    | ~ ordinal(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

fof(c_0_34,plain,
    ! [X17,X18,X19,X20,X21,X22] :
      ( ( ~ in(X19,X18)
        | X19 = X17
        | X18 != singleton(X17) )
      & ( X20 != X17
        | in(X20,X18)
        | X18 != singleton(X17) )
      & ( ~ in(esk1_2(X21,X22),X22)
        | esk1_2(X21,X22) != X21
        | X22 = singleton(X21) )
      & ( in(esk1_2(X21,X22),X22)
        | esk1_2(X21,X22) = X21
        | X22 = singleton(X21) ) ),
    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_35,negated_conjecture,
    ( ordinal_subset(esk18_0,esk19_0)
    | ordinal_subset(esk19_0,esk18_0) ),
    inference(spm,[status(thm)],[c_0_28,c_0_26]) ).

fof(c_0_36,plain,
    ! [X28,X29,X30,X31,X32] :
      ( ( ~ subset(X28,X29)
        | ~ in(X30,X28)
        | in(X30,X29) )
      & ( in(esk3_2(X31,X32),X31)
        | subset(X31,X32) )
      & ( ~ in(esk3_2(X31,X32),X32)
        | subset(X31,X32) ) ),
    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_37,plain,
    ( subset(X2,X1)
    | ~ epsilon_transitive(X1)
    | ~ in(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_29]) ).

cnf(c_0_38,negated_conjecture,
    ( subset(set_union2(esk18_0,singleton(esk18_0)),esk19_0)
    | in(esk18_0,esk19_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_31]),c_0_22])]),c_0_32])]) ).

cnf(c_0_39,negated_conjecture,
    epsilon_transitive(esk19_0),
    inference(spm,[status(thm)],[c_0_33,c_0_22]) ).

fof(c_0_40,plain,
    ! [X63] : in(X63,succ(X63)),
    inference(variable_rename,[status(thm)],[t10_ordinal1]) ).

cnf(c_0_41,plain,
    ( X1 = X3
    | ~ in(X1,X2)
    | X2 != singleton(X3) ),
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_42,negated_conjecture,
    ( subset(esk19_0,esk18_0)
    | ordinal_subset(esk18_0,esk19_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_35]),c_0_26]),c_0_22])]) ).

cnf(c_0_43,plain,
    ( in(X3,X2)
    | ~ subset(X1,X2)
    | ~ in(X3,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_36]) ).

cnf(c_0_44,negated_conjecture,
    ( subset(set_union2(esk18_0,singleton(esk18_0)),esk19_0)
    | subset(esk18_0,esk19_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_37,c_0_38]),c_0_39])]) ).

cnf(c_0_45,plain,
    in(X1,succ(X1)),
    inference(split_conjunct,[status(thm)],[c_0_40]) ).

cnf(c_0_46,plain,
    ( X1 = X2
    | ~ in(X1,singleton(X2)) ),
    inference(er,[status(thm)],[c_0_41]) ).

cnf(c_0_47,plain,
    ( in(esk3_2(X1,X2),X1)
    | subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_36]) ).

fof(c_0_48,plain,
    ! [X1,X2] :
      ( in(X1,X2)
     => ~ in(X2,X1) ),
    inference(fof_simplification,[status(thm)],[antisymmetry_r2_hidden]) ).

cnf(c_0_49,negated_conjecture,
    ( subset(esk19_0,esk18_0)
    | subset(esk18_0,esk19_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_42]),c_0_22]),c_0_26])]) ).

cnf(c_0_50,negated_conjecture,
    ( subset(esk18_0,esk19_0)
    | in(X1,esk19_0)
    | ~ in(X1,set_union2(esk18_0,singleton(esk18_0))) ),
    inference(spm,[status(thm)],[c_0_43,c_0_44]) ).

cnf(c_0_51,plain,
    in(X1,set_union2(X1,singleton(X1))),
    inference(rw,[status(thm)],[c_0_45,c_0_20]) ).

cnf(c_0_52,plain,
    ( subset(X1,X2)
    | ~ in(esk3_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[c_0_36]) ).

cnf(c_0_53,plain,
    ( esk3_2(singleton(X1),X2) = X1
    | subset(singleton(X1),X2) ),
    inference(spm,[status(thm)],[c_0_46,c_0_47]) ).

fof(c_0_54,plain,
    ! [X4,X5] :
      ( ~ in(X4,X5)
      | ~ in(X5,X4) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_48])]) ).

cnf(c_0_55,negated_conjecture,
    ( subset(esk18_0,esk19_0)
    | in(X1,esk18_0)
    | ~ in(X1,esk19_0) ),
    inference(spm,[status(thm)],[c_0_43,c_0_49]) ).

cnf(c_0_56,negated_conjecture,
    ( subset(esk18_0,esk19_0)
    | in(esk18_0,esk19_0) ),
    inference(spm,[status(thm)],[c_0_50,c_0_51]) ).

cnf(c_0_57,plain,
    ( subset(singleton(X1),X2)
    | ~ in(X1,X2) ),
    inference(spm,[status(thm)],[c_0_52,c_0_53]) ).

fof(c_0_58,plain,
    ! [X84,X85,X86] :
      ( ~ subset(X84,X85)
      | ~ subset(X86,X85)
      | subset(set_union2(X84,X86),X85) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[t8_xboole_1])]) ).

cnf(c_0_59,plain,
    ( ~ in(X1,X2)
    | ~ in(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_54]) ).

cnf(c_0_60,negated_conjecture,
    ( subset(esk18_0,esk19_0)
    | in(esk18_0,esk18_0) ),
    inference(spm,[status(thm)],[c_0_55,c_0_56]) ).

cnf(c_0_61,negated_conjecture,
    ( subset(set_union2(esk18_0,singleton(esk18_0)),esk19_0)
    | subset(singleton(esk18_0),esk19_0) ),
    inference(spm,[status(thm)],[c_0_57,c_0_38]) ).

cnf(c_0_62,plain,
    ( subset(set_union2(X1,X3),X2)
    | ~ subset(X1,X2)
    | ~ subset(X3,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_58]) ).

cnf(c_0_63,negated_conjecture,
    subset(esk18_0,esk19_0),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_59,c_0_60]),c_0_60]) ).

cnf(c_0_64,negated_conjecture,
    ( subset(singleton(esk18_0),esk19_0)
    | in(X1,esk19_0)
    | ~ in(X1,set_union2(esk18_0,singleton(esk18_0))) ),
    inference(spm,[status(thm)],[c_0_43,c_0_61]) ).

fof(c_0_65,plain,
    ! [X12,X13] : set_union2(X12,X13) = set_union2(X13,X12),
    inference(variable_rename,[status(thm)],[commutativity_k2_xboole_0]) ).

cnf(c_0_66,negated_conjecture,
    ( subset(set_union2(X1,esk18_0),esk19_0)
    | ~ subset(X1,esk19_0) ),
    inference(spm,[status(thm)],[c_0_62,c_0_63]) ).

cnf(c_0_67,negated_conjecture,
    subset(singleton(esk18_0),esk19_0),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_64,c_0_51]),c_0_57]) ).

cnf(c_0_68,plain,
    set_union2(X1,X2) = set_union2(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_65]) ).

cnf(c_0_69,negated_conjecture,
    subset(set_union2(esk18_0,singleton(esk18_0)),esk19_0),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_66,c_0_67]),c_0_68]) ).

cnf(c_0_70,negated_conjecture,
    ( ~ in(esk18_0,esk19_0)
    | ~ ordinal_subset(succ(esk18_0),esk19_0) ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_71,negated_conjecture,
    ( in(X1,esk19_0)
    | ~ in(X1,set_union2(esk18_0,singleton(esk18_0))) ),
    inference(spm,[status(thm)],[c_0_43,c_0_69]) ).

cnf(c_0_72,negated_conjecture,
    ( ~ in(esk18_0,esk19_0)
    | ~ ordinal_subset(set_union2(esk18_0,singleton(esk18_0)),esk19_0) ),
    inference(rw,[status(thm)],[c_0_70,c_0_20]) ).

cnf(c_0_73,negated_conjecture,
    in(esk18_0,esk19_0),
    inference(spm,[status(thm)],[c_0_71,c_0_51]) ).

cnf(c_0_74,plain,
    ( ordinal_subset(X1,X2)
    | ~ subset(X1,X2)
    | ~ ordinal(X1)
    | ~ ordinal(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_23]) ).

cnf(c_0_75,negated_conjecture,
    ~ ordinal_subset(set_union2(esk18_0,singleton(esk18_0)),esk19_0),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_72,c_0_73])]) ).

cnf(c_0_76,negated_conjecture,
    $false,
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_74,c_0_69]),c_0_22]),c_0_32])]),c_0_75]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : SEU236+3 : TPTP v8.1.2. Released v3.2.0.
% 0.12/0.13  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.13/0.34  % Computer : n005.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   : Wed Aug 23 16:01:54 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.19/0.57  start to proof: theBenchmark
% 2.62/2.77  % Version  : CSE_E---1.5
% 2.62/2.77  % Problem  : theBenchmark.p
% 2.62/2.77  % Proof found
% 2.62/2.77  % SZS status Theorem for theBenchmark.p
% 2.62/2.77  % SZS output start Proof
% See solution above
% 2.62/2.78  % Total time : 2.178000 s
% 2.62/2.78  % SZS output end Proof
% 2.62/2.78  % Total time : 2.182000 s
%------------------------------------------------------------------------------