TSTP Solution File: SET971+1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET971+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n004.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 03:38:42 EDT 2022

% Result   : Theorem 0.11s 0.35s
% Output   : CNFRefutation 0.11s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :   16
% Syntax   : Number of formulae    :   64 (  33 unt;   0 def)
%            Number of atoms       :  110 (  89 equ)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :   88 (  42   ~;  35   |;   7   &)
%                                         (   0 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :   71 (   0 sgn  36   !;   4   ?)

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

fof(t123_zfmisc_1,axiom,
    ! [A,B,C,D] : cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)) = set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D)) ).

fof(t124_zfmisc_1,conjecture,
    ! [A,B,C,D] :
      ( ( subset(A,B)
        & subset(C,D) )
     => set_intersection2(cartesian_product2(A,D),cartesian_product2(B,C)) = cartesian_product2(A,C) ) ).

fof(t28_xboole_1,axiom,
    ! [A,B] :
      ( subset(A,B)
     => set_intersection2(A,B) = A ) ).

fof(subgoal_0,plain,
    ! [A,B,C,D] :
      ( ( subset(A,B)
        & subset(C,D) )
     => set_intersection2(cartesian_product2(A,D),cartesian_product2(B,C)) = cartesian_product2(A,C) ),
    inference(strip,[],[t124_zfmisc_1]) ).

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

fof(normalize_0_0,plain,
    ? [A,B,C,D] :
      ( set_intersection2(cartesian_product2(A,D),cartesian_product2(B,C)) != cartesian_product2(A,C)
      & subset(A,B)
      & subset(C,D) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ( set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    & subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B)
    & subset(skolemFOFtoCNF_C,skolemFOFtoCNF_D) ),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [A,B] : set_intersection2(A,B) = set_intersection2(B,A),
    inference(canonicalize,[],[commutativity_k3_xboole_0]) ).

fof(normalize_0_4,plain,
    ! [A,B] : set_intersection2(A,B) = set_intersection2(B,A),
    inference(specialize,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ! [A,B,C,D] : cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)) = set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D)),
    inference(canonicalize,[],[t123_zfmisc_1]) ).

fof(normalize_0_6,plain,
    ! [A,B,C,D] : cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)) = set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D)),
    inference(specialize,[],[normalize_0_5]) ).

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

fof(normalize_0_8,plain,
    ! [A,B] :
      ( ~ subset(A,B)
      | set_intersection2(A,B) = A ),
    inference(canonicalize,[],[t28_xboole_1]) ).

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

fof(normalize_0_10,plain,
    subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),
    inference(conjunct,[],[normalize_0_1]) ).

cnf(refute_0_0,plain,
    set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_2]) ).

cnf(refute_0_1,plain,
    set_intersection2(A,B) = set_intersection2(B,A),
    inference(canonicalize,[],[normalize_0_4]) ).

cnf(refute_0_2,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_0_3,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_0_4,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_0_2,refute_0_3]) ).

cnf(refute_0_5,plain,
    ( set_intersection2(A,B) != set_intersection2(B,A)
    | set_intersection2(B,A) = set_intersection2(A,B) ),
    inference(subst,[],[refute_0_4:[bind(X,$fot(set_intersection2(A,B))),bind(Y,$fot(set_intersection2(B,A)))]]) ).

cnf(refute_0_6,plain,
    set_intersection2(B,A) = set_intersection2(A,B),
    inference(resolve,[$cnf( $equal(set_intersection2(A,B),set_intersection2(B,A)) )],[refute_0_1,refute_0_5]) ).

cnf(refute_0_7,plain,
    set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C) = set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D),
    inference(subst,[],[refute_0_6:[bind(A,$fot(skolemFOFtoCNF_C)),bind(B,$fot(skolemFOFtoCNF_D))]]) ).

cnf(refute_0_8,plain,
    cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)),
    introduced(tautology,[refl,[$fot(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)))]]) ).

cnf(refute_0_9,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)) != cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C))
    | set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C) != set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) ),
    introduced(tautology,[equality,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C))) ),[1,1],$fot(set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))]]) ).

cnf(refute_0_10,plain,
    ( set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C) != set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C))) )],[refute_0_8,refute_0_9]) ).

cnf(refute_0_11,plain,
    cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),
    inference(resolve,[$cnf( $equal(set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) )],[refute_0_7,refute_0_10]) ).

cnf(refute_0_12,plain,
    cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)) = set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D)),
    inference(canonicalize,[],[normalize_0_6]) ).

cnf(refute_0_13,plain,
    ( cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)) != set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D))
    | set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D)) = cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)) ),
    inference(subst,[],[refute_0_4:[bind(X,$fot(cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)))),bind(Y,$fot(set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D))))]]) ).

cnf(refute_0_14,plain,
    set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D)) = cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)),
    inference(resolve,[$cnf( $equal(cartesian_product2(set_intersection2(A,B),set_intersection2(C,D)),set_intersection2(cartesian_product2(A,C),cartesian_product2(B,D))) )],[refute_0_12,refute_0_13]) ).

cnf(refute_0_15,plain,
    set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)),
    inference(subst,[],[refute_0_14:[bind(A,$fot(skolemFOFtoCNF_A_2)),bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_D)),bind(D,$fot(skolemFOFtoCNF_C))]]) ).

cnf(refute_0_16,plain,
    ( Y != X
    | Y != Z
    | X = Z ),
    introduced(tautology,[equality,[$cnf( $equal(Y,Z) ),[0],$fot(X)]]) ).

cnf(refute_0_17,plain,
    ( X != Y
    | Y != Z
    | X = Z ),
    inference(resolve,[$cnf( $equal(Y,X) )],[refute_0_4,refute_0_16]) ).

cnf(refute_0_18,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)) != cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))
    | set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) != cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C))
    | set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) ),
    inference(subst,[],[refute_0_17:[bind(X,$fot(set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)))),bind(Y,$fot(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)))),bind(Z,$fot(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))))]]) ).

cnf(refute_0_19,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)) != cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))
    | set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) ),
    inference(resolve,[$cnf( $equal(set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C))) )],[refute_0_15,refute_0_18]) ).

cnf(refute_0_20,plain,
    set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),
    inference(resolve,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_D,skolemFOFtoCNF_C)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) )],[refute_0_11,refute_0_19]) ).

cnf(refute_0_21,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    | set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) != cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))
    | set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    introduced(tautology,[equality,[$cnf( $equal(set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) ),[1],$fot(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C))]]) ).

cnf(refute_0_22,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    | set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) )],[refute_0_20,refute_0_21]) ).

cnf(refute_0_23,plain,
    cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),
    inference(resolve,[$cnf( $equal(set_intersection2(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_D),cartesian_product2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)) )],[refute_0_22,refute_0_0]) ).

cnf(refute_0_24,plain,
    subset(skolemFOFtoCNF_C,skolemFOFtoCNF_D),
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_25,plain,
    ( ~ subset(A,B)
    | set_intersection2(A,B) = A ),
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_26,plain,
    ( ~ subset(skolemFOFtoCNF_C,skolemFOFtoCNF_D)
    | set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D) = skolemFOFtoCNF_C ),
    inference(subst,[],[refute_0_25:[bind(A,$fot(skolemFOFtoCNF_C)),bind(B,$fot(skolemFOFtoCNF_D))]]) ).

cnf(refute_0_27,plain,
    set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D) = skolemFOFtoCNF_C,
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_C,skolemFOFtoCNF_D) )],[refute_0_24,refute_0_26]) ).

cnf(refute_0_28,plain,
    cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),
    introduced(tautology,[refl,[$fot(cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)))]]) ).

cnf(refute_0_29,plain,
    ( cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))
    | set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D) != skolemFOFtoCNF_C
    | cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    introduced(tautology,[equality,[$cnf( $equal(cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) ),[1,1],$fot(skolemFOFtoCNF_C)]]) ).

cnf(refute_0_30,plain,
    ( set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D) != skolemFOFtoCNF_C
    | cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) )],[refute_0_28,refute_0_29]) ).

cnf(refute_0_31,plain,
    cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),
    inference(resolve,[$cnf( $equal(set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D),skolemFOFtoCNF_C) )],[refute_0_27,refute_0_30]) ).

cnf(refute_0_32,plain,
    subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_33,plain,
    ( ~ subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B)
    | set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B) = skolemFOFtoCNF_A_2 ),
    inference(subst,[],[refute_0_25:[bind(A,$fot(skolemFOFtoCNF_A_2)),bind(B,$fot(skolemFOFtoCNF_B))]]) ).

cnf(refute_0_34,plain,
    set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B) = skolemFOFtoCNF_A_2,
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B) )],[refute_0_32,refute_0_33]) ).

cnf(refute_0_35,plain,
    cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),
    introduced(tautology,[refl,[$fot(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)))]]) ).

cnf(refute_0_36,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))
    | set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B) != skolemFOFtoCNF_A_2
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) ),
    introduced(tautology,[equality,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) ),[1,0],$fot(skolemFOFtoCNF_A_2)]]) ).

cnf(refute_0_37,plain,
    ( set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B) != skolemFOFtoCNF_A_2
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) )],[refute_0_35,refute_0_36]) ).

cnf(refute_0_38,plain,
    cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),
    inference(resolve,[$cnf( $equal(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),skolemFOFtoCNF_A_2) )],[refute_0_34,refute_0_37]) ).

cnf(refute_0_39,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))
    | cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_17:[bind(X,$fot(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)))),bind(Y,$fot(cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)))),bind(Z,$fot(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)))]]) ).

cnf(refute_0_40,plain,
    ( cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D))) )],[refute_0_38,refute_0_39]) ).

cnf(refute_0_41,plain,
    cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),
    inference(resolve,[$cnf( $equal(cartesian_product2(skolemFOFtoCNF_A_2,set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)) )],[refute_0_31,refute_0_40]) ).

cnf(refute_0_42,plain,
    ( cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    | cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    introduced(tautology,[equality,[$cnf( ~ $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)) ),[0],$fot(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C))]]) ).

cnf(refute_0_43,plain,
    ( cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)
    | cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)) )],[refute_0_41,refute_0_42]) ).

cnf(refute_0_44,plain,
    cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) != cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),
    inference(resolve,[$cnf( $equal(cartesian_product2(set_intersection2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B),set_intersection2(skolemFOFtoCNF_C,skolemFOFtoCNF_D)),cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)) )],[refute_0_43,refute_0_23]) ).

cnf(refute_0_45,plain,
    cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C) = cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),
    introduced(tautology,[refl,[$fot(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C))]]) ).

cnf(refute_0_46,plain,
    $false,
    inference(resolve,[$cnf( $equal(cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C),cartesian_product2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_C)) )],[refute_0_45,refute_0_44]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.11  % Problem  : SET971+1 : TPTP v8.1.0. Released v3.2.0.
% 0.07/0.12  % Command  : metis --show proof --show saturation %s
% 0.11/0.33  % Computer : n004.cluster.edu
% 0.11/0.33  % Model    : x86_64 x86_64
% 0.11/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.33  % Memory   : 8042.1875MB
% 0.11/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.33  % CPULimit : 300
% 0.11/0.33  % WCLimit  : 600
% 0.11/0.33  % DateTime : Sun Jul 10 08:19:37 EDT 2022
% 0.11/0.33  % CPUTime  : 
% 0.11/0.33  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.11/0.35  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.11/0.35  
% 0.11/0.35  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.11/0.35  
%------------------------------------------------------------------------------