TSTP Solution File: SEU245+1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SEU245+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %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  : 600s
% DateTime : Tue Jul 19 12:39:40 EDT 2022

% Result   : Theorem 0.48s 0.69s
% Output   : CNFRefutation 0.48s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :   17
% Syntax   : Number of formulae    :  128 (  48 unt;   0 def)
%            Number of atoms       :  319 (  98 equ)
%            Maximal formula atoms :   20 (   2 avg)
%            Number of connectives :  325 ( 134   ~; 119   |;  49   &)
%                                         (  15 <=>;   8  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :   13 (  13 usr;   9 con; 0-3 aty)
%            Number of variables   :  217 (   7 sgn  93   !;  15   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(commutativity_k3_xboole_0,axiom,
    ! [A,B] : set_intersection2(A,B) = set_intersection2(B,A) ).

fof(d6_wellord1,axiom,
    ! [A] :
      ( relation(A)
     => ! [B] : relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ) ).

fof(t16_wellord1,conjecture,
    ! [A,B,C] :
      ( relation(C)
     => ( in(A,relation_restriction(C,B))
      <=> ( in(A,C)
          & in(A,cartesian_product2(B,B)) ) ) ) ).

fof(d3_xboole_0,axiom,
    ! [A,B,C] :
      ( C = set_intersection2(A,B)
    <=> ! [D] :
          ( in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ) ).

fof(subgoal_0,plain,
    ! [A,B,C] :
      ( ( relation(C)
        & in(A,relation_restriction(C,B)) )
     => in(A,C) ),
    inference(strip,[],[t16_wellord1]) ).

fof(subgoal_1,plain,
    ! [A,B,C] :
      ( ( relation(C)
        & in(A,relation_restriction(C,B))
        & in(A,C) )
     => in(A,cartesian_product2(B,B)) ),
    inference(strip,[],[t16_wellord1]) ).

fof(subgoal_2,plain,
    ! [A,B,C] :
      ( ( relation(C)
        & in(A,C)
        & in(A,cartesian_product2(B,B)) )
     => in(A,relation_restriction(C,B)) ),
    inference(strip,[],[t16_wellord1]) ).

fof(negate_0_0,plain,
    ~ ! [A,B,C] :
        ( ( relation(C)
          & in(A,relation_restriction(C,B)) )
       => in(A,C) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [A,B,C] :
      ( ~ in(A,C)
      & in(A,relation_restriction(C,B))
      & relation(C) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ( ~ in(skolemFOFtoCNF_A_5,skolemFOFtoCNF_C)
    & in(skolemFOFtoCNF_A_5,relation_restriction(skolemFOFtoCNF_C,skolemFOFtoCNF_B_1))
    & relation(skolemFOFtoCNF_C) ),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    in(skolemFOFtoCNF_A_5,relation_restriction(skolemFOFtoCNF_C,skolemFOFtoCNF_B_1)),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [A,B,C] :
      ( C != set_intersection2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ),
    inference(canonicalize,[],[d3_xboole_0]) ).

fof(normalize_0_4,plain,
    ! [A,B,C] :
      ( C != set_intersection2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ),
    inference(specialize,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ! [A,B,C,D] :
      ( ( C != set_intersection2(A,B)
        | ~ in(D,C)
        | in(D,A) )
      & ( C != set_intersection2(A,B)
        | ~ in(D,C)
        | in(D,B) )
      & ( C = set_intersection2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),A)
        | in(skolemFOFtoCNF_D(A,B,C),C) )
      & ( C = set_intersection2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),B)
        | in(skolemFOFtoCNF_D(A,B,C),C) )
      & ( C != set_intersection2(A,B)
        | ~ in(D,A)
        | ~ in(D,B)
        | in(D,C) )
      & ( ~ in(skolemFOFtoCNF_D(A,B,C),A)
        | ~ in(skolemFOFtoCNF_D(A,B,C),B)
        | ~ in(skolemFOFtoCNF_D(A,B,C),C)
        | C = set_intersection2(A,B) ) ),
    inference(clausify,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    ! [A,B,C,D] :
      ( C != set_intersection2(A,B)
      | ~ in(D,C)
      | in(D,A) ),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    relation(skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_8,plain,
    ! [A] :
      ( ~ relation(A)
      | ! [B] : relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(canonicalize,[],[d6_wellord1]) ).

fof(normalize_0_9,plain,
    ! [A] :
      ( ~ relation(A)
      | ! [B] : relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(specialize,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    ! [A,B] :
      ( ~ relation(A)
      | relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(clausify,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    ~ in(skolemFOFtoCNF_A_5,skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_1]) ).

cnf(refute_0_0,plain,
    in(skolemFOFtoCNF_A_5,relation_restriction(skolemFOFtoCNF_C,skolemFOFtoCNF_B_1)),
    inference(canonicalize,[],[normalize_0_2]) ).

cnf(refute_0_1,plain,
    ( C != set_intersection2(A,B)
    | ~ in(D,C)
    | in(D,A) ),
    inference(canonicalize,[],[normalize_0_6]) ).

cnf(refute_0_2,plain,
    ( set_intersection2(A,B) != set_intersection2(A,B)
    | ~ in(D,set_intersection2(A,B))
    | in(D,A) ),
    inference(subst,[],[refute_0_1:[bind(C,$fot(set_intersection2(A,B)))]]) ).

cnf(refute_0_3,plain,
    set_intersection2(A,B) = set_intersection2(A,B),
    introduced(tautology,[refl,[$fot(set_intersection2(A,B))]]) ).

cnf(refute_0_4,plain,
    ( ~ in(D,set_intersection2(A,B))
    | in(D,A) ),
    inference(resolve,[$cnf( $equal(set_intersection2(A,B),set_intersection2(A,B)) )],[refute_0_3,refute_0_2]) ).

cnf(refute_0_5,plain,
    ( ~ in(D,set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57)))
    | in(D,skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_4:[bind(A,$fot(skolemFOFtoCNF_C)),bind(B,$fot(cartesian_product2(X_57,X_57)))]]) ).

cnf(refute_0_6,plain,
    relation(skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_7,plain,
    ( ~ relation(A)
    | relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_8,plain,
    ( ~ relation(skolemFOFtoCNF_C)
    | relation_restriction(skolemFOFtoCNF_C,X_53) = set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_53,X_53)) ),
    inference(subst,[],[refute_0_7:[bind(A,$fot(skolemFOFtoCNF_C)),bind(B,$fot(X_53))]]) ).

cnf(refute_0_9,plain,
    relation_restriction(skolemFOFtoCNF_C,X_53) = set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_53,X_53)),
    inference(resolve,[$cnf( relation(skolemFOFtoCNF_C) )],[refute_0_6,refute_0_8]) ).

cnf(refute_0_10,plain,
    relation_restriction(skolemFOFtoCNF_C,X_57) = set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57)),
    inference(subst,[],[refute_0_9:[bind(X_53,$fot(X_57))]]) ).

cnf(refute_0_11,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_0_12,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_0_13,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_0_11,refute_0_12]) ).

cnf(refute_0_14,plain,
    ( relation_restriction(skolemFOFtoCNF_C,X_57) != set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57))
    | set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57)) = relation_restriction(skolemFOFtoCNF_C,X_57) ),
    inference(subst,[],[refute_0_13:[bind(X,$fot(relation_restriction(skolemFOFtoCNF_C,X_57))),bind(Y,$fot(set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57))))]]) ).

cnf(refute_0_15,plain,
    set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57)) = relation_restriction(skolemFOFtoCNF_C,X_57),
    inference(resolve,[$cnf( $equal(relation_restriction(skolemFOFtoCNF_C,X_57),set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57))) )],[refute_0_10,refute_0_14]) ).

cnf(refute_0_16,plain,
    ( set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57)) != relation_restriction(skolemFOFtoCNF_C,X_57)
    | ~ in(D,relation_restriction(skolemFOFtoCNF_C,X_57))
    | in(D,set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57))) ),
    introduced(tautology,[equality,[$cnf( ~ in(D,set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57))) ),[1],$fot(relation_restriction(skolemFOFtoCNF_C,X_57))]]) ).

cnf(refute_0_17,plain,
    ( ~ in(D,relation_restriction(skolemFOFtoCNF_C,X_57))
    | in(D,set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57))) ),
    inference(resolve,[$cnf( $equal(set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57)),relation_restriction(skolemFOFtoCNF_C,X_57)) )],[refute_0_15,refute_0_16]) ).

cnf(refute_0_18,plain,
    ( ~ in(D,relation_restriction(skolemFOFtoCNF_C,X_57))
    | in(D,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( in(D,set_intersection2(skolemFOFtoCNF_C,cartesian_product2(X_57,X_57))) )],[refute_0_17,refute_0_5]) ).

cnf(refute_0_19,plain,
    ( ~ in(skolemFOFtoCNF_A_5,relation_restriction(skolemFOFtoCNF_C,skolemFOFtoCNF_B_1))
    | in(skolemFOFtoCNF_A_5,skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_18:[bind(D,$fot(skolemFOFtoCNF_A_5)),bind(X_57,$fot(skolemFOFtoCNF_B_1))]]) ).

cnf(refute_0_20,plain,
    in(skolemFOFtoCNF_A_5,skolemFOFtoCNF_C),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_5,relation_restriction(skolemFOFtoCNF_C,skolemFOFtoCNF_B_1)) )],[refute_0_0,refute_0_19]) ).

cnf(refute_0_21,plain,
    ~ in(skolemFOFtoCNF_A_5,skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_22,plain,
    $false,
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_5,skolemFOFtoCNF_C) )],[refute_0_20,refute_0_21]) ).

fof(negate_1_0,plain,
    ~ ! [A,B,C] :
        ( ( relation(C)
          & in(A,relation_restriction(C,B))
          & in(A,C) )
       => in(A,cartesian_product2(B,B)) ),
    inference(negate,[],[subgoal_1]) ).

fof(normalize_1_0,plain,
    ? [A,B,C] :
      ( ~ in(A,cartesian_product2(B,B))
      & in(A,C)
      & in(A,relation_restriction(C,B))
      & relation(C) ),
    inference(canonicalize,[],[negate_1_0]) ).

fof(normalize_1_1,plain,
    ( ~ in(skolemFOFtoCNF_A_6,cartesian_product2(skolemFOFtoCNF_B_2,skolemFOFtoCNF_B_2))
    & in(skolemFOFtoCNF_A_6,relation_restriction(skolemFOFtoCNF_C_1,skolemFOFtoCNF_B_2))
    & in(skolemFOFtoCNF_A_6,skolemFOFtoCNF_C_1)
    & relation(skolemFOFtoCNF_C_1) ),
    inference(skolemize,[],[normalize_1_0]) ).

fof(normalize_1_2,plain,
    in(skolemFOFtoCNF_A_6,relation_restriction(skolemFOFtoCNF_C_1,skolemFOFtoCNF_B_2)),
    inference(conjunct,[],[normalize_1_1]) ).

fof(normalize_1_3,plain,
    ! [A,B,C] :
      ( C != set_intersection2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ),
    inference(canonicalize,[],[d3_xboole_0]) ).

fof(normalize_1_4,plain,
    ! [A,B,C] :
      ( C != set_intersection2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ),
    inference(specialize,[],[normalize_1_3]) ).

fof(normalize_1_5,plain,
    ! [A,B,C,D] :
      ( ( C != set_intersection2(A,B)
        | ~ in(D,C)
        | in(D,A) )
      & ( C != set_intersection2(A,B)
        | ~ in(D,C)
        | in(D,B) )
      & ( C = set_intersection2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),A)
        | in(skolemFOFtoCNF_D(A,B,C),C) )
      & ( C = set_intersection2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),B)
        | in(skolemFOFtoCNF_D(A,B,C),C) )
      & ( C != set_intersection2(A,B)
        | ~ in(D,A)
        | ~ in(D,B)
        | in(D,C) )
      & ( ~ in(skolemFOFtoCNF_D(A,B,C),A)
        | ~ in(skolemFOFtoCNF_D(A,B,C),B)
        | ~ in(skolemFOFtoCNF_D(A,B,C),C)
        | C = set_intersection2(A,B) ) ),
    inference(clausify,[],[normalize_1_4]) ).

fof(normalize_1_6,plain,
    ! [A,B,C,D] :
      ( C != set_intersection2(A,B)
      | ~ in(D,C)
      | in(D,A) ),
    inference(conjunct,[],[normalize_1_5]) ).

fof(normalize_1_7,plain,
    ! [A,B] : set_intersection2(A,B) = set_intersection2(B,A),
    inference(canonicalize,[],[commutativity_k3_xboole_0]) ).

fof(normalize_1_8,plain,
    ! [A,B] : set_intersection2(A,B) = set_intersection2(B,A),
    inference(specialize,[],[normalize_1_7]) ).

fof(normalize_1_9,plain,
    relation(skolemFOFtoCNF_C_1),
    inference(conjunct,[],[normalize_1_1]) ).

fof(normalize_1_10,plain,
    ! [A] :
      ( ~ relation(A)
      | ! [B] : relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(canonicalize,[],[d6_wellord1]) ).

fof(normalize_1_11,plain,
    ! [A] :
      ( ~ relation(A)
      | ! [B] : relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(specialize,[],[normalize_1_10]) ).

fof(normalize_1_12,plain,
    ! [A,B] :
      ( ~ relation(A)
      | relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(clausify,[],[normalize_1_11]) ).

fof(normalize_1_13,plain,
    ~ in(skolemFOFtoCNF_A_6,cartesian_product2(skolemFOFtoCNF_B_2,skolemFOFtoCNF_B_2)),
    inference(conjunct,[],[normalize_1_1]) ).

cnf(refute_1_0,plain,
    in(skolemFOFtoCNF_A_6,relation_restriction(skolemFOFtoCNF_C_1,skolemFOFtoCNF_B_2)),
    inference(canonicalize,[],[normalize_1_2]) ).

cnf(refute_1_1,plain,
    ( C != set_intersection2(A,B)
    | ~ in(D,C)
    | in(D,A) ),
    inference(canonicalize,[],[normalize_1_6]) ).

cnf(refute_1_2,plain,
    ( set_intersection2(A,B) != set_intersection2(A,B)
    | ~ in(D,set_intersection2(A,B))
    | in(D,A) ),
    inference(subst,[],[refute_1_1:[bind(C,$fot(set_intersection2(A,B)))]]) ).

cnf(refute_1_3,plain,
    set_intersection2(A,B) = set_intersection2(A,B),
    introduced(tautology,[refl,[$fot(set_intersection2(A,B))]]) ).

cnf(refute_1_4,plain,
    ( ~ in(D,set_intersection2(A,B))
    | in(D,A) ),
    inference(resolve,[$cnf( $equal(set_intersection2(A,B),set_intersection2(A,B)) )],[refute_1_3,refute_1_2]) ).

cnf(refute_1_5,plain,
    ( ~ in(X_209,set_intersection2(X_207,X_208))
    | in(X_209,X_207) ),
    inference(subst,[],[refute_1_4:[bind(A,$fot(X_207)),bind(B,$fot(X_208)),bind(D,$fot(X_209))]]) ).

cnf(refute_1_6,plain,
    set_intersection2(A,B) = set_intersection2(B,A),
    inference(canonicalize,[],[normalize_1_8]) ).

cnf(refute_1_7,plain,
    set_intersection2(X_208,X_207) = set_intersection2(X_207,X_208),
    inference(subst,[],[refute_1_6:[bind(A,$fot(X_208)),bind(B,$fot(X_207))]]) ).

cnf(refute_1_8,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_1_9,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_1_10,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_1_8,refute_1_9]) ).

cnf(refute_1_11,plain,
    ( set_intersection2(X_208,X_207) != set_intersection2(X_207,X_208)
    | set_intersection2(X_207,X_208) = set_intersection2(X_208,X_207) ),
    inference(subst,[],[refute_1_10:[bind(X,$fot(set_intersection2(X_208,X_207))),bind(Y,$fot(set_intersection2(X_207,X_208)))]]) ).

cnf(refute_1_12,plain,
    set_intersection2(X_207,X_208) = set_intersection2(X_208,X_207),
    inference(resolve,[$cnf( $equal(set_intersection2(X_208,X_207),set_intersection2(X_207,X_208)) )],[refute_1_7,refute_1_11]) ).

cnf(refute_1_13,plain,
    ( set_intersection2(X_207,X_208) != set_intersection2(X_208,X_207)
    | ~ in(X_209,set_intersection2(X_208,X_207))
    | in(X_209,set_intersection2(X_207,X_208)) ),
    introduced(tautology,[equality,[$cnf( ~ in(X_209,set_intersection2(X_207,X_208)) ),[1],$fot(set_intersection2(X_208,X_207))]]) ).

cnf(refute_1_14,plain,
    ( ~ in(X_209,set_intersection2(X_208,X_207))
    | in(X_209,set_intersection2(X_207,X_208)) ),
    inference(resolve,[$cnf( $equal(set_intersection2(X_207,X_208),set_intersection2(X_208,X_207)) )],[refute_1_12,refute_1_13]) ).

cnf(refute_1_15,plain,
    ( ~ in(X_209,set_intersection2(X_208,X_207))
    | in(X_209,X_207) ),
    inference(resolve,[$cnf( in(X_209,set_intersection2(X_207,X_208)) )],[refute_1_14,refute_1_5]) ).

cnf(refute_1_16,plain,
    ( ~ in(X_209,set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219)))
    | in(X_209,cartesian_product2(X_219,X_219)) ),
    inference(subst,[],[refute_1_15:[bind(X_207,$fot(cartesian_product2(X_219,X_219))),bind(X_208,$fot(skolemFOFtoCNF_C_1))]]) ).

cnf(refute_1_17,plain,
    relation(skolemFOFtoCNF_C_1),
    inference(canonicalize,[],[normalize_1_9]) ).

cnf(refute_1_18,plain,
    ( ~ relation(A)
    | relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(canonicalize,[],[normalize_1_12]) ).

cnf(refute_1_19,plain,
    ( ~ relation(skolemFOFtoCNF_C_1)
    | relation_restriction(skolemFOFtoCNF_C_1,X_216) = set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_216,X_216)) ),
    inference(subst,[],[refute_1_18:[bind(A,$fot(skolemFOFtoCNF_C_1)),bind(B,$fot(X_216))]]) ).

cnf(refute_1_20,plain,
    relation_restriction(skolemFOFtoCNF_C_1,X_216) = set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_216,X_216)),
    inference(resolve,[$cnf( relation(skolemFOFtoCNF_C_1) )],[refute_1_17,refute_1_19]) ).

cnf(refute_1_21,plain,
    relation_restriction(skolemFOFtoCNF_C_1,X_219) = set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219)),
    inference(subst,[],[refute_1_20:[bind(X_216,$fot(X_219))]]) ).

cnf(refute_1_22,plain,
    ( relation_restriction(skolemFOFtoCNF_C_1,X_219) != set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219))
    | set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219)) = relation_restriction(skolemFOFtoCNF_C_1,X_219) ),
    inference(subst,[],[refute_1_10:[bind(X,$fot(relation_restriction(skolemFOFtoCNF_C_1,X_219))),bind(Y,$fot(set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219))))]]) ).

cnf(refute_1_23,plain,
    set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219)) = relation_restriction(skolemFOFtoCNF_C_1,X_219),
    inference(resolve,[$cnf( $equal(relation_restriction(skolemFOFtoCNF_C_1,X_219),set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219))) )],[refute_1_21,refute_1_22]) ).

cnf(refute_1_24,plain,
    ( set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219)) != relation_restriction(skolemFOFtoCNF_C_1,X_219)
    | ~ in(X_209,relation_restriction(skolemFOFtoCNF_C_1,X_219))
    | in(X_209,set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219))) ),
    introduced(tautology,[equality,[$cnf( ~ in(X_209,set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219))) ),[1],$fot(relation_restriction(skolemFOFtoCNF_C_1,X_219))]]) ).

cnf(refute_1_25,plain,
    ( ~ in(X_209,relation_restriction(skolemFOFtoCNF_C_1,X_219))
    | in(X_209,set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219))) ),
    inference(resolve,[$cnf( $equal(set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219)),relation_restriction(skolemFOFtoCNF_C_1,X_219)) )],[refute_1_23,refute_1_24]) ).

cnf(refute_1_26,plain,
    ( ~ in(X_209,relation_restriction(skolemFOFtoCNF_C_1,X_219))
    | in(X_209,cartesian_product2(X_219,X_219)) ),
    inference(resolve,[$cnf( in(X_209,set_intersection2(skolemFOFtoCNF_C_1,cartesian_product2(X_219,X_219))) )],[refute_1_25,refute_1_16]) ).

cnf(refute_1_27,plain,
    ( ~ in(skolemFOFtoCNF_A_6,relation_restriction(skolemFOFtoCNF_C_1,skolemFOFtoCNF_B_2))
    | in(skolemFOFtoCNF_A_6,cartesian_product2(skolemFOFtoCNF_B_2,skolemFOFtoCNF_B_2)) ),
    inference(subst,[],[refute_1_26:[bind(X_209,$fot(skolemFOFtoCNF_A_6)),bind(X_219,$fot(skolemFOFtoCNF_B_2))]]) ).

cnf(refute_1_28,plain,
    in(skolemFOFtoCNF_A_6,cartesian_product2(skolemFOFtoCNF_B_2,skolemFOFtoCNF_B_2)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_6,relation_restriction(skolemFOFtoCNF_C_1,skolemFOFtoCNF_B_2)) )],[refute_1_0,refute_1_27]) ).

cnf(refute_1_29,plain,
    ~ in(skolemFOFtoCNF_A_6,cartesian_product2(skolemFOFtoCNF_B_2,skolemFOFtoCNF_B_2)),
    inference(canonicalize,[],[normalize_1_13]) ).

cnf(refute_1_30,plain,
    $false,
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_6,cartesian_product2(skolemFOFtoCNF_B_2,skolemFOFtoCNF_B_2)) )],[refute_1_28,refute_1_29]) ).

fof(negate_2_0,plain,
    ~ ! [A,B,C] :
        ( ( relation(C)
          & in(A,C)
          & in(A,cartesian_product2(B,B)) )
       => in(A,relation_restriction(C,B)) ),
    inference(negate,[],[subgoal_2]) ).

fof(normalize_2_0,plain,
    ? [A,B,C] :
      ( ~ in(A,relation_restriction(C,B))
      & in(A,C)
      & in(A,cartesian_product2(B,B))
      & relation(C) ),
    inference(canonicalize,[],[negate_2_0]) ).

fof(normalize_2_1,plain,
    ( ~ in(skolemFOFtoCNF_A_7,relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3))
    & in(skolemFOFtoCNF_A_7,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3))
    & in(skolemFOFtoCNF_A_7,skolemFOFtoCNF_C_2)
    & relation(skolemFOFtoCNF_C_2) ),
    inference(skolemize,[],[normalize_2_0]) ).

fof(normalize_2_2,plain,
    in(skolemFOFtoCNF_A_7,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)),
    inference(conjunct,[],[normalize_2_1]) ).

fof(normalize_2_3,plain,
    in(skolemFOFtoCNF_A_7,skolemFOFtoCNF_C_2),
    inference(conjunct,[],[normalize_2_1]) ).

fof(normalize_2_4,plain,
    ! [A,B,C] :
      ( C != set_intersection2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ),
    inference(canonicalize,[],[d3_xboole_0]) ).

fof(normalize_2_5,plain,
    ! [A,B,C] :
      ( C != set_intersection2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ),
    inference(specialize,[],[normalize_2_4]) ).

fof(normalize_2_6,plain,
    ! [A,B,C,D] :
      ( ( C != set_intersection2(A,B)
        | ~ in(D,C)
        | in(D,A) )
      & ( C != set_intersection2(A,B)
        | ~ in(D,C)
        | in(D,B) )
      & ( C = set_intersection2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),A)
        | in(skolemFOFtoCNF_D(A,B,C),C) )
      & ( C = set_intersection2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),B)
        | in(skolemFOFtoCNF_D(A,B,C),C) )
      & ( C != set_intersection2(A,B)
        | ~ in(D,A)
        | ~ in(D,B)
        | in(D,C) )
      & ( ~ in(skolemFOFtoCNF_D(A,B,C),A)
        | ~ in(skolemFOFtoCNF_D(A,B,C),B)
        | ~ in(skolemFOFtoCNF_D(A,B,C),C)
        | C = set_intersection2(A,B) ) ),
    inference(clausify,[],[normalize_2_5]) ).

fof(normalize_2_7,plain,
    ! [A,B,C,D] :
      ( C != set_intersection2(A,B)
      | ~ in(D,A)
      | ~ in(D,B)
      | in(D,C) ),
    inference(conjunct,[],[normalize_2_6]) ).

fof(normalize_2_8,plain,
    relation(skolemFOFtoCNF_C_2),
    inference(conjunct,[],[normalize_2_1]) ).

fof(normalize_2_9,plain,
    ! [A] :
      ( ~ relation(A)
      | ! [B] : relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(canonicalize,[],[d6_wellord1]) ).

fof(normalize_2_10,plain,
    ! [A] :
      ( ~ relation(A)
      | ! [B] : relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(specialize,[],[normalize_2_9]) ).

fof(normalize_2_11,plain,
    ! [A,B] :
      ( ~ relation(A)
      | relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(clausify,[],[normalize_2_10]) ).

fof(normalize_2_12,plain,
    ~ in(skolemFOFtoCNF_A_7,relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)),
    inference(conjunct,[],[normalize_2_1]) ).

cnf(refute_2_0,plain,
    in(skolemFOFtoCNF_A_7,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)),
    inference(canonicalize,[],[normalize_2_2]) ).

cnf(refute_2_1,plain,
    in(skolemFOFtoCNF_A_7,skolemFOFtoCNF_C_2),
    inference(canonicalize,[],[normalize_2_3]) ).

cnf(refute_2_2,plain,
    ( C != set_intersection2(A,B)
    | ~ in(D,A)
    | ~ in(D,B)
    | in(D,C) ),
    inference(canonicalize,[],[normalize_2_7]) ).

cnf(refute_2_3,plain,
    ( set_intersection2(A,B) != set_intersection2(A,B)
    | ~ in(D,A)
    | ~ in(D,B)
    | in(D,set_intersection2(A,B)) ),
    inference(subst,[],[refute_2_2:[bind(C,$fot(set_intersection2(A,B)))]]) ).

cnf(refute_2_4,plain,
    set_intersection2(A,B) = set_intersection2(A,B),
    introduced(tautology,[refl,[$fot(set_intersection2(A,B))]]) ).

cnf(refute_2_5,plain,
    ( ~ in(D,A)
    | ~ in(D,B)
    | in(D,set_intersection2(A,B)) ),
    inference(resolve,[$cnf( $equal(set_intersection2(A,B),set_intersection2(A,B)) )],[refute_2_4,refute_2_3]) ).

cnf(refute_2_6,plain,
    ( ~ in(skolemFOFtoCNF_A_7,X_609)
    | ~ in(skolemFOFtoCNF_A_7,skolemFOFtoCNF_C_2)
    | in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,X_609)) ),
    inference(subst,[],[refute_2_5:[bind(A,$fot(skolemFOFtoCNF_C_2)),bind(B,$fot(X_609)),bind(D,$fot(skolemFOFtoCNF_A_7))]]) ).

cnf(refute_2_7,plain,
    ( ~ in(skolemFOFtoCNF_A_7,X_609)
    | in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,X_609)) ),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_7,skolemFOFtoCNF_C_2) )],[refute_2_1,refute_2_6]) ).

cnf(refute_2_8,plain,
    ( ~ in(skolemFOFtoCNF_A_7,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3))
    | in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3))) ),
    inference(subst,[],[refute_2_7:[bind(X_609,$fot(cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)))]]) ).

cnf(refute_2_9,plain,
    in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3))),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_7,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)) )],[refute_2_0,refute_2_8]) ).

cnf(refute_2_10,plain,
    relation(skolemFOFtoCNF_C_2),
    inference(canonicalize,[],[normalize_2_8]) ).

cnf(refute_2_11,plain,
    ( ~ relation(A)
    | relation_restriction(A,B) = set_intersection2(A,cartesian_product2(B,B)) ),
    inference(canonicalize,[],[normalize_2_11]) ).

cnf(refute_2_12,plain,
    ( ~ relation(skolemFOFtoCNF_C_2)
    | relation_restriction(skolemFOFtoCNF_C_2,X_435) = set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(X_435,X_435)) ),
    inference(subst,[],[refute_2_11:[bind(A,$fot(skolemFOFtoCNF_C_2)),bind(B,$fot(X_435))]]) ).

cnf(refute_2_13,plain,
    relation_restriction(skolemFOFtoCNF_C_2,X_435) = set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(X_435,X_435)),
    inference(resolve,[$cnf( relation(skolemFOFtoCNF_C_2) )],[refute_2_10,refute_2_12]) ).

cnf(refute_2_14,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_2_15,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_2_16,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_2_14,refute_2_15]) ).

cnf(refute_2_17,plain,
    ( relation_restriction(skolemFOFtoCNF_C_2,X_435) != set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(X_435,X_435))
    | set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(X_435,X_435)) = relation_restriction(skolemFOFtoCNF_C_2,X_435) ),
    inference(subst,[],[refute_2_16:[bind(X,$fot(relation_restriction(skolemFOFtoCNF_C_2,X_435))),bind(Y,$fot(set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(X_435,X_435))))]]) ).

cnf(refute_2_18,plain,
    set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(X_435,X_435)) = relation_restriction(skolemFOFtoCNF_C_2,X_435),
    inference(resolve,[$cnf( $equal(relation_restriction(skolemFOFtoCNF_C_2,X_435),set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(X_435,X_435))) )],[refute_2_13,refute_2_17]) ).

cnf(refute_2_19,plain,
    set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)) = relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3),
    inference(subst,[],[refute_2_18:[bind(X_435,$fot(skolemFOFtoCNF_B_3))]]) ).

cnf(refute_2_20,plain,
    ( set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)) != relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)
    | ~ in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)))
    | in(skolemFOFtoCNF_A_7,relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)) ),
    introduced(tautology,[equality,[$cnf( in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3))) ),[1],$fot(relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3))]]) ).

cnf(refute_2_21,plain,
    ( ~ in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)))
    | in(skolemFOFtoCNF_A_7,relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)) ),
    inference(resolve,[$cnf( $equal(set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3)),relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)) )],[refute_2_19,refute_2_20]) ).

cnf(refute_2_22,plain,
    in(skolemFOFtoCNF_A_7,relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_7,set_intersection2(skolemFOFtoCNF_C_2,cartesian_product2(skolemFOFtoCNF_B_3,skolemFOFtoCNF_B_3))) )],[refute_2_9,refute_2_21]) ).

cnf(refute_2_23,plain,
    ~ in(skolemFOFtoCNF_A_7,relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)),
    inference(canonicalize,[],[normalize_2_12]) ).

cnf(refute_2_24,plain,
    $false,
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_7,relation_restriction(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_3)) )],[refute_2_22,refute_2_23]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : SEU245+1 : TPTP v8.1.0. Released v3.3.0.
% 0.07/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.35  % Computer : n023.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Mon Jun 20 11:58:48 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.13/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.48/0.69  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.48/0.69  
% 0.48/0.69  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 0.48/0.70  
%------------------------------------------------------------------------------