TSTP Solution File: SET951+1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET951+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n029.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 03:38:35 EDT 2022

% Result   : Theorem 73.45s 73.67s
% Output   : CNFRefutation 73.45s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   22
%            Number of leaves      :   16
% Syntax   : Number of formulae    :  125 (  33 unt;   0 def)
%            Number of atoms       :  327 ( 149 equ)
%            Maximal formula atoms :   28 (   2 avg)
%            Number of connectives :  369 ( 167   ~; 153   |;  34   &)
%                                         (  12 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   19 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :   14 (  14 usr;   5 con; 0-3 aty)
%            Number of variables   :  229 (  12 sgn 113   !;  15   ?)

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

fof(d2_zfmisc_1,axiom,
    ! [A,B,C] :
      ( C = cartesian_product2(A,B)
    <=> ! [D] :
          ( in(D,C)
        <=> ? [E,F] :
              ( in(E,A)
              & in(F,B)
              & D = ordered_pair(E,F) ) ) ) ).

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

fof(t104_zfmisc_1,conjecture,
    ! [A,B,C,D,E] :
      ~ ( in(A,set_intersection2(cartesian_product2(B,C),cartesian_product2(D,E)))
        & ! [F,G] :
            ~ ( A = ordered_pair(F,G)
              & in(F,set_intersection2(B,D))
              & in(G,set_intersection2(C,E)) ) ) ).

fof(t33_zfmisc_1,axiom,
    ! [A,B,C,D] :
      ( ordered_pair(A,B) = ordered_pair(C,D)
     => ( A = C
        & B = D ) ) ).

fof(subgoal_0,plain,
    ! [A,B,C,D,E] :
      ( in(A,set_intersection2(cartesian_product2(B,C),cartesian_product2(D,E)))
     => ~ ! [F,G] :
            ~ ( A = ordered_pair(F,G)
              & in(F,set_intersection2(B,D))
              & in(G,set_intersection2(C,E)) ) ),
    inference(strip,[],[t104_zfmisc_1]) ).

fof(negate_0_0,plain,
    ~ ! [A,B,C,D,E] :
        ( in(A,set_intersection2(cartesian_product2(B,C),cartesian_product2(D,E)))
       => ~ ! [F,G] :
              ~ ( A = ordered_pair(F,G)
                & in(F,set_intersection2(B,D))
                & in(G,set_intersection2(C,E)) ) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [A,B,C,D,E] :
      ( in(A,set_intersection2(cartesian_product2(B,C),cartesian_product2(D,E)))
      & ! [F,G] :
          ( A != ordered_pair(F,G)
          | ~ in(F,set_intersection2(B,D))
          | ~ in(G,set_intersection2(C,E)) ) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ( in(skolemFOFtoCNF_A_2,set_intersection2(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)))
    & ! [F,G] :
        ( skolemFOFtoCNF_A_2 != ordered_pair(F,G)
        | ~ in(F,set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))
        | ~ in(G,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ) ),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    in(skolemFOFtoCNF_A_2,set_intersection2(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))),
    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_1(A,B,C),A)
        | in(skolemFOFtoCNF_D_1(A,B,C),C) )
      & ( C = set_intersection2(A,B)
        | in(skolemFOFtoCNF_D_1(A,B,C),B)
        | in(skolemFOFtoCNF_D_1(A,B,C),C) )
      & ( C != set_intersection2(A,B)
        | ~ in(D,A)
        | ~ in(D,B)
        | in(D,C) )
      & ( ~ in(skolemFOFtoCNF_D_1(A,B,C),A)
        | ~ in(skolemFOFtoCNF_D_1(A,B,C),B)
        | ~ in(skolemFOFtoCNF_D_1(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,
    ! [A,B,C] :
      ( C != cartesian_product2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ? [E,F] :
              ( D = ordered_pair(E,F)
              & in(E,A)
              & in(F,B) ) ) ),
    inference(canonicalize,[],[d2_zfmisc_1]) ).

fof(normalize_0_8,plain,
    ! [A,B,C] :
      ( C != cartesian_product2(A,B)
    <=> ? [D] :
          ( ~ in(D,C)
        <=> ? [E,F] :
              ( D = ordered_pair(E,F)
              & in(E,A)
              & in(F,B) ) ) ),
    inference(specialize,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [A,B,C,D,E,F] :
      ( ( C != cartesian_product2(A,B)
        | ~ in(D,C)
        | D = ordered_pair(skolemFOFtoCNF_E_1(A,B,D),skolemFOFtoCNF_F_1(A,B,D)) )
      & ( C != cartesian_product2(A,B)
        | ~ in(D,C)
        | in(skolemFOFtoCNF_E_1(A,B,D),A) )
      & ( C != cartesian_product2(A,B)
        | ~ in(D,C)
        | in(skolemFOFtoCNF_F_1(A,B,D),B) )
      & ( C = cartesian_product2(A,B)
        | skolemFOFtoCNF_D(A,B,C) = ordered_pair(skolemFOFtoCNF_E(A,B,C),skolemFOFtoCNF_F(A,B,C))
        | in(skolemFOFtoCNF_D(A,B,C),C) )
      & ( C = cartesian_product2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),C)
        | in(skolemFOFtoCNF_E(A,B,C),A) )
      & ( C = cartesian_product2(A,B)
        | in(skolemFOFtoCNF_D(A,B,C),C)
        | in(skolemFOFtoCNF_F(A,B,C),B) )
      & ( C != cartesian_product2(A,B)
        | D != ordered_pair(E,F)
        | ~ in(E,A)
        | ~ in(F,B)
        | in(D,C) )
      & ( skolemFOFtoCNF_D(A,B,C) != ordered_pair(E,F)
        | ~ in(E,A)
        | ~ in(F,B)
        | ~ in(skolemFOFtoCNF_D(A,B,C),C)
        | C = cartesian_product2(A,B) ) ),
    inference(clausify,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    ! [A,B,C,D] :
      ( C != cartesian_product2(A,B)
      | ~ in(D,C)
      | in(skolemFOFtoCNF_E_1(A,B,D),A) ),
    inference(conjunct,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    ! [A,B,C,D] :
      ( C != set_intersection2(A,B)
      | ~ in(D,A)
      | ~ in(D,B)
      | in(D,C) ),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_12,plain,
    ! [A,B,C,D] :
      ( C != set_intersection2(A,B)
      | ~ in(D,C)
      | in(D,B) ),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_13,plain,
    ! [A,B,C,D] :
      ( ordered_pair(A,B) != ordered_pair(C,D)
      | ( A = C
        & B = D ) ),
    inference(canonicalize,[],[t33_zfmisc_1]) ).

fof(normalize_0_14,plain,
    ! [A,B,C,D] :
      ( ordered_pair(A,B) != ordered_pair(C,D)
      | ( A = C
        & B = D ) ),
    inference(specialize,[],[normalize_0_13]) ).

fof(normalize_0_15,plain,
    ! [A,B,C,D] :
      ( ( ordered_pair(A,B) != ordered_pair(C,D)
        | A = C )
      & ( ordered_pair(A,B) != ordered_pair(C,D)
        | B = D ) ),
    inference(clausify,[],[normalize_0_14]) ).

fof(normalize_0_16,plain,
    ! [A,B,C,D] :
      ( ordered_pair(A,B) != ordered_pair(C,D)
      | A = C ),
    inference(conjunct,[],[normalize_0_15]) ).

fof(normalize_0_17,plain,
    ! [A,B,C,D] :
      ( C != cartesian_product2(A,B)
      | ~ in(D,C)
      | D = ordered_pair(skolemFOFtoCNF_E_1(A,B,D),skolemFOFtoCNF_F_1(A,B,D)) ),
    inference(conjunct,[],[normalize_0_9]) ).

fof(normalize_0_18,plain,
    ! [A,B] : set_intersection2(A,B) = set_intersection2(B,A),
    inference(canonicalize,[],[commutativity_k3_xboole_0]) ).

fof(normalize_0_19,plain,
    ! [A,B] : set_intersection2(A,B) = set_intersection2(B,A),
    inference(specialize,[],[normalize_0_18]) ).

fof(normalize_0_20,plain,
    ! [F,G] :
      ( skolemFOFtoCNF_A_2 != ordered_pair(F,G)
      | ~ in(F,set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))
      | ~ in(G,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_21,plain,
    ! [F,G] :
      ( skolemFOFtoCNF_A_2 != ordered_pair(F,G)
      | ~ in(F,set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))
      | ~ in(G,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ),
    inference(specialize,[],[normalize_0_20]) ).

fof(normalize_0_22,plain,
    ! [A,B,C,D] :
      ( C != cartesian_product2(A,B)
      | ~ in(D,C)
      | in(skolemFOFtoCNF_F_1(A,B,D),B) ),
    inference(conjunct,[],[normalize_0_9]) ).

fof(normalize_0_23,plain,
    ! [A,B,C,D] :
      ( ordered_pair(A,B) != ordered_pair(C,D)
      | B = D ),
    inference(conjunct,[],[normalize_0_15]) ).

cnf(refute_0_0,plain,
    in(skolemFOFtoCNF_A_2,set_intersection2(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))),
    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(skolemFOFtoCNF_A_2,set_intersection2(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)))
    | in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),
    inference(subst,[],[refute_0_4:[bind(A,$fot(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C))),bind(B,$fot(cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_6,plain,
    in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,set_intersection2(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))) )],[refute_0_0,refute_0_5]) ).

cnf(refute_0_7,plain,
    ( C != cartesian_product2(A,B)
    | ~ in(D,C)
    | in(skolemFOFtoCNF_E_1(A,B,D),A) ),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_8,plain,
    ( cartesian_product2(A,B) != cartesian_product2(A,B)
    | ~ in(D,cartesian_product2(A,B))
    | in(skolemFOFtoCNF_E_1(A,B,D),A) ),
    inference(subst,[],[refute_0_7:[bind(C,$fot(cartesian_product2(A,B)))]]) ).

cnf(refute_0_9,plain,
    cartesian_product2(A,B) = cartesian_product2(A,B),
    introduced(tautology,[refl,[$fot(cartesian_product2(A,B))]]) ).

cnf(refute_0_10,plain,
    ( ~ in(D,cartesian_product2(A,B))
    | in(skolemFOFtoCNF_E_1(A,B,D),A) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(A,B),cartesian_product2(A,B)) )],[refute_0_9,refute_0_8]) ).

cnf(refute_0_11,plain,
    ( ~ in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C))
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B) ),
    inference(subst,[],[refute_0_10:[bind(A,$fot(skolemFOFtoCNF_B)),bind(B,$fot(skolemFOFtoCNF_C)),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_12,plain,
    in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_6,refute_0_11]) ).

cnf(refute_0_13,plain,
    ( C != set_intersection2(A,B)
    | ~ in(D,A)
    | ~ in(D,B)
    | in(D,C) ),
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_14,plain,
    ( set_intersection2(A,B) != set_intersection2(A,B)
    | ~ in(D,A)
    | ~ in(D,B)
    | in(D,set_intersection2(A,B)) ),
    inference(subst,[],[refute_0_13:[bind(C,$fot(set_intersection2(A,B)))]]) ).

cnf(refute_0_15,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_0_3,refute_0_14]) ).

cnf(refute_0_16,plain,
    ( ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),X_108)
    | ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B)
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(X_108,skolemFOFtoCNF_B)) ),
    inference(subst,[],[refute_0_15:[bind(A,$fot(X_108)),bind(B,$fot(skolemFOFtoCNF_B)),bind(D,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_17,plain,
    ( ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),X_108)
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(X_108,skolemFOFtoCNF_B)) ),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B) )],[refute_0_12,refute_0_16]) ).

cnf(refute_0_18,plain,
    ( ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2)
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B)) ),
    inference(subst,[],[refute_0_17:[bind(X_108,$fot(skolemFOFtoCNF_D_2))]]) ).

cnf(refute_0_19,plain,
    ( C != set_intersection2(A,B)
    | ~ in(D,C)
    | in(D,B) ),
    inference(canonicalize,[],[normalize_0_12]) ).

cnf(refute_0_20,plain,
    ( set_intersection2(A,B) != set_intersection2(A,B)
    | ~ in(D,set_intersection2(A,B))
    | in(D,B) ),
    inference(subst,[],[refute_0_19:[bind(C,$fot(set_intersection2(A,B)))]]) ).

cnf(refute_0_21,plain,
    ( ~ in(D,set_intersection2(A,B))
    | in(D,B) ),
    inference(resolve,[$cnf( $equal(set_intersection2(A,B),set_intersection2(A,B)) )],[refute_0_3,refute_0_20]) ).

cnf(refute_0_22,plain,
    ( ~ in(skolemFOFtoCNF_A_2,set_intersection2(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)))
    | in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)) ),
    inference(subst,[],[refute_0_21:[bind(A,$fot(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C))),bind(B,$fot(cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_23,plain,
    in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,set_intersection2(cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))) )],[refute_0_0,refute_0_22]) ).

cnf(refute_0_24,plain,
    ( ~ in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2) ),
    inference(subst,[],[refute_0_10:[bind(A,$fot(skolemFOFtoCNF_D_2)),bind(B,$fot(skolemFOFtoCNF_E_2)),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_25,plain,
    in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)) )],[refute_0_23,refute_0_24]) ).

cnf(refute_0_26,plain,
    ( ordered_pair(A,B) != ordered_pair(C,D)
    | A = C ),
    inference(canonicalize,[],[normalize_0_16]) ).

cnf(refute_0_27,plain,
    ( ordered_pair(A,B) != ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))
    | A = skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_26:[bind(C,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))),bind(D,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_28,plain,
    ( C != cartesian_product2(A,B)
    | ~ in(D,C)
    | D = ordered_pair(skolemFOFtoCNF_E_1(A,B,D),skolemFOFtoCNF_F_1(A,B,D)) ),
    inference(canonicalize,[],[normalize_0_17]) ).

cnf(refute_0_29,plain,
    ( cartesian_product2(A,B) != cartesian_product2(A,B)
    | ~ in(D,cartesian_product2(A,B))
    | D = ordered_pair(skolemFOFtoCNF_E_1(A,B,D),skolemFOFtoCNF_F_1(A,B,D)) ),
    inference(subst,[],[refute_0_28:[bind(C,$fot(cartesian_product2(A,B)))]]) ).

cnf(refute_0_30,plain,
    ( ~ in(D,cartesian_product2(A,B))
    | D = ordered_pair(skolemFOFtoCNF_E_1(A,B,D),skolemFOFtoCNF_F_1(A,B,D)) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(A,B),cartesian_product2(A,B)) )],[refute_0_9,refute_0_29]) ).

cnf(refute_0_31,plain,
    ( ~ in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))
    | skolemFOFtoCNF_A_2 = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) ),
    inference(subst,[],[refute_0_30:[bind(A,$fot(skolemFOFtoCNF_D_2)),bind(B,$fot(skolemFOFtoCNF_E_2)),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_32,plain,
    skolemFOFtoCNF_A_2 = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)) )],[refute_0_23,refute_0_31]) ).

cnf(refute_0_33,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_0_34,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_0_35,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_0_33,refute_0_34]) ).

cnf(refute_0_36,plain,
    ( skolemFOFtoCNF_A_2 != ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))
    | ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) = skolemFOFtoCNF_A_2 ),
    inference(subst,[],[refute_0_35:[bind(X,$fot(skolemFOFtoCNF_A_2)),bind(Y,$fot(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))))]]) ).

cnf(refute_0_37,plain,
    ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) = skolemFOFtoCNF_A_2,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))) )],[refute_0_32,refute_0_36]) ).

cnf(refute_0_38,plain,
    ( ordered_pair(A,B) != skolemFOFtoCNF_A_2
    | ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) != skolemFOFtoCNF_A_2
    | ordered_pair(A,B) = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) ),
    introduced(tautology,[equality,[$cnf( ~ $equal(ordered_pair(A,B),ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))) ),[1],$fot(skolemFOFtoCNF_A_2)]]) ).

cnf(refute_0_39,plain,
    ( ordered_pair(A,B) != skolemFOFtoCNF_A_2
    | ordered_pair(A,B) = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) ),
    inference(resolve,[$cnf( $equal(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)),skolemFOFtoCNF_A_2) )],[refute_0_37,refute_0_38]) ).

cnf(refute_0_40,plain,
    ( ordered_pair(A,B) != skolemFOFtoCNF_A_2
    | A = skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(resolve,[$cnf( $equal(ordered_pair(A,B),ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))) )],[refute_0_39,refute_0_27]) ).

cnf(refute_0_41,plain,
    ( ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_40:[bind(A,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))),bind(B,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_42,plain,
    ( ~ in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C))
    | skolemFOFtoCNF_A_2 = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) ),
    inference(subst,[],[refute_0_30:[bind(A,$fot(skolemFOFtoCNF_B)),bind(B,$fot(skolemFOFtoCNF_C)),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_43,plain,
    skolemFOFtoCNF_A_2 = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_6,refute_0_42]) ).

cnf(refute_0_44,plain,
    ( skolemFOFtoCNF_A_2 != ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))
    | ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) = skolemFOFtoCNF_A_2 ),
    inference(subst,[],[refute_0_35:[bind(X,$fot(skolemFOFtoCNF_A_2)),bind(Y,$fot(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))))]]) ).

cnf(refute_0_45,plain,
    ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) = skolemFOFtoCNF_A_2,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))) )],[refute_0_43,refute_0_44]) ).

cnf(refute_0_46,plain,
    ( ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) = skolemFOFtoCNF_A_2 ),
    introduced(tautology,[equality,[$cnf( ~ $equal(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)),skolemFOFtoCNF_A_2) ),[0],$fot(skolemFOFtoCNF_A_2)]]) ).

cnf(refute_0_47,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) = skolemFOFtoCNF_A_2 ),
    inference(resolve,[$cnf( $equal(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)),skolemFOFtoCNF_A_2) )],[refute_0_45,refute_0_46]) ).

cnf(refute_0_48,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(resolve,[$cnf( $equal(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)),skolemFOFtoCNF_A_2) )],[refute_0_47,refute_0_41]) ).

cnf(refute_0_49,plain,
    skolemFOFtoCNF_A_2 = skolemFOFtoCNF_A_2,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_A_2)]]) ).

cnf(refute_0_50,plain,
    skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,skolemFOFtoCNF_A_2) )],[refute_0_49,refute_0_48]) ).

cnf(refute_0_51,plain,
    ( skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) != skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)
    | skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_35:[bind(X,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))),bind(Y,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_52,plain,
    skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) )],[refute_0_50,refute_0_51]) ).

cnf(refute_0_53,plain,
    ( skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) != skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)
    | ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2)
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2) ),
    introduced(tautology,[equality,[$cnf( in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2) ),[0],$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_54,plain,
    ( ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2)
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) )],[refute_0_52,refute_0_53]) ).

cnf(refute_0_55,plain,
    in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2) )],[refute_0_25,refute_0_54]) ).

cnf(refute_0_56,plain,
    in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_D_2) )],[refute_0_55,refute_0_18]) ).

cnf(refute_0_57,plain,
    set_intersection2(A,B) = set_intersection2(B,A),
    inference(canonicalize,[],[normalize_0_19]) ).

cnf(refute_0_58,plain,
    ( set_intersection2(A,B) != set_intersection2(B,A)
    | set_intersection2(B,A) = set_intersection2(A,B) ),
    inference(subst,[],[refute_0_35:[bind(X,$fot(set_intersection2(A,B))),bind(Y,$fot(set_intersection2(B,A)))]]) ).

cnf(refute_0_59,plain,
    set_intersection2(B,A) = set_intersection2(A,B),
    inference(resolve,[$cnf( $equal(set_intersection2(A,B),set_intersection2(B,A)) )],[refute_0_57,refute_0_58]) ).

cnf(refute_0_60,plain,
    set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B) = set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),
    inference(subst,[],[refute_0_59:[bind(A,$fot(skolemFOFtoCNF_B)),bind(B,$fot(skolemFOFtoCNF_D_2))]]) ).

cnf(refute_0_61,plain,
    ( set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B) != set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)
    | ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B))
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)) ),
    introduced(tautology,[equality,[$cnf( in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B)) ),[1],$fot(set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))]]) ).

cnf(refute_0_62,plain,
    ( ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B))
    | in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)) ),
    inference(resolve,[$cnf( $equal(set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)) )],[refute_0_60,refute_0_61]) ).

cnf(refute_0_63,plain,
    in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B)) )],[refute_0_56,refute_0_62]) ).

cnf(refute_0_64,plain,
    ( skolemFOFtoCNF_A_2 != ordered_pair(F,G)
    | ~ in(F,set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))
    | ~ in(G,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ),
    inference(canonicalize,[],[normalize_0_21]) ).

cnf(refute_0_65,plain,
    ( skolemFOFtoCNF_A_2 != ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))
    | ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))
    | ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ),
    inference(subst,[],[refute_0_64:[bind(F,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))),bind(G,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_66,plain,
    ( ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_A_2 = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) ),
    introduced(tautology,[equality,[$cnf( ~ $equal(skolemFOFtoCNF_A_2,ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))) ),[1],$fot(skolemFOFtoCNF_A_2)]]) ).

cnf(refute_0_67,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_A_2 = ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) ),
    inference(resolve,[$cnf( $equal(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)),skolemFOFtoCNF_A_2) )],[refute_0_45,refute_0_66]) ).

cnf(refute_0_68,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))
    | ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))) )],[refute_0_67,refute_0_65]) ).

cnf(refute_0_69,plain,
    ( ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))
    | ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,skolemFOFtoCNF_A_2) )],[refute_0_49,refute_0_68]) ).

cnf(refute_0_70,plain,
    ( C != cartesian_product2(A,B)
    | ~ in(D,C)
    | in(skolemFOFtoCNF_F_1(A,B,D),B) ),
    inference(canonicalize,[],[normalize_0_22]) ).

cnf(refute_0_71,plain,
    ( cartesian_product2(A,B) != cartesian_product2(A,B)
    | ~ in(D,cartesian_product2(A,B))
    | in(skolemFOFtoCNF_F_1(A,B,D),B) ),
    inference(subst,[],[refute_0_70:[bind(C,$fot(cartesian_product2(A,B)))]]) ).

cnf(refute_0_72,plain,
    ( ~ in(D,cartesian_product2(A,B))
    | in(skolemFOFtoCNF_F_1(A,B,D),B) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(A,B),cartesian_product2(A,B)) )],[refute_0_9,refute_0_71]) ).

cnf(refute_0_73,plain,
    ( ~ in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C))
    | in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_72:[bind(A,$fot(skolemFOFtoCNF_B)),bind(B,$fot(skolemFOFtoCNF_C)),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_74,plain,
    in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_C),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_6,refute_0_73]) ).

cnf(refute_0_75,plain,
    ( ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),X_109)
    | ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_C)
    | in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,X_109)) ),
    inference(subst,[],[refute_0_15:[bind(A,$fot(skolemFOFtoCNF_C)),bind(B,$fot(X_109)),bind(D,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_76,plain,
    ( ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),X_109)
    | in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,X_109)) ),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_C) )],[refute_0_74,refute_0_75]) ).

cnf(refute_0_77,plain,
    ( ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2)
    | in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) ),
    inference(subst,[],[refute_0_76:[bind(X_109,$fot(skolemFOFtoCNF_E_2))]]) ).

cnf(refute_0_78,plain,
    ( ~ in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2))
    | in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2) ),
    inference(subst,[],[refute_0_72:[bind(A,$fot(skolemFOFtoCNF_D_2)),bind(B,$fot(skolemFOFtoCNF_E_2)),bind(D,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_79,plain,
    in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_A_2,cartesian_product2(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2)) )],[refute_0_23,refute_0_78]) ).

cnf(refute_0_80,plain,
    ( ordered_pair(A,B) != ordered_pair(C,D)
    | B = D ),
    inference(canonicalize,[],[normalize_0_23]) ).

cnf(refute_0_81,plain,
    ( ordered_pair(A,B) != ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))
    | B = skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_80:[bind(C,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))),bind(D,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_82,plain,
    ( ordered_pair(A,B) != skolemFOFtoCNF_A_2
    | B = skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(resolve,[$cnf( $equal(ordered_pair(A,B),ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2))) )],[refute_0_39,refute_0_81]) ).

cnf(refute_0_83,plain,
    ( ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_82:[bind(A,$fot(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))),bind(B,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_84,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) ),
    inference(resolve,[$cnf( $equal(ordered_pair(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)),skolemFOFtoCNF_A_2) )],[refute_0_47,refute_0_83]) ).

cnf(refute_0_85,plain,
    skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,skolemFOFtoCNF_A_2) )],[refute_0_49,refute_0_84]) ).

cnf(refute_0_86,plain,
    ( skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) != skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)
    | skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_35:[bind(X,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))),bind(Y,$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_87,plain,
    skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) = skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2)) )],[refute_0_85,refute_0_86]) ).

cnf(refute_0_88,plain,
    ( skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2) != skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)
    | ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2)
    | in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2) ),
    introduced(tautology,[equality,[$cnf( in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2) ),[0],$fot(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_89,plain,
    ( ~ in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2)
    | in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2)) )],[refute_0_87,refute_0_88]) ).

cnf(refute_0_90,plain,
    in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_D_2,skolemFOFtoCNF_E_2,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2) )],[refute_0_79,refute_0_89]) ).

cnf(refute_0_91,plain,
    in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),skolemFOFtoCNF_E_2) )],[refute_0_90,refute_0_77]) ).

cnf(refute_0_92,plain,
    ~ in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)),
    inference(resolve,[$cnf( in(skolemFOFtoCNF_F_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_E_2)) )],[refute_0_91,refute_0_69]) ).

cnf(refute_0_93,plain,
    $false,
    inference(resolve,[$cnf( in(skolemFOFtoCNF_E_1(skolemFOFtoCNF_B,skolemFOFtoCNF_C,skolemFOFtoCNF_A_2),set_intersection2(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)) )],[refute_0_63,refute_0_92]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : SET951+1 : TPTP v8.1.0. Released v3.2.0.
% 0.04/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.34  % Computer : n029.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  : 600
% 0.13/0.34  % DateTime : Sun Jul 10 00:00:00 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 73.45/73.67  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 73.45/73.67  
% 73.45/73.67  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 73.45/73.67  
%------------------------------------------------------------------------------