TSTP Solution File: SET656+3 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET656+3 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n007.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 03:36:23 EDT 2022

% Result   : Theorem 0.77s 0.95s
% Output   : CNFRefutation 0.77s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   20
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   96 (  18 unt;   0 def)
%            Number of atoms       :  348 (  19 equ)
%            Maximal formula atoms :   18 (   3 avg)
%            Number of connectives :  441 ( 189   ~; 177   |;  34   &)
%                                         (  12 <=>;  29  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   5 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    7 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :   12 (  12 usr;   4 con; 0-2 aty)
%            Number of variables   :  164 (   4 sgn  91   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(p1,axiom,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ilf_type(C,set_type)
         => ( subset(B,C)
           => intersection(B,C) = B ) ) ) ).

fof(p6,axiom,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ilf_type(C,set_type)
         => ( ! [D] :
                ( ilf_type(D,subset_type(cross_product(B,C)))
               => ilf_type(D,relation_type(B,C)) )
            & ! [E] :
                ( ilf_type(E,relation_type(B,C))
               => ilf_type(E,subset_type(cross_product(B,C))) ) ) ) ) ).

fof(p13,axiom,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ilf_type(C,set_type)
         => ( ilf_type(C,subset_type(B))
          <=> ilf_type(C,member_type(power_set(B))) ) ) ) ).

fof(p17,axiom,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ilf_type(C,set_type)
         => ( subset(B,C)
          <=> ! [D] :
                ( ilf_type(D,set_type)
               => ( member(D,B)
                 => member(D,C) ) ) ) ) ) ).

fof(p19,axiom,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ilf_type(C,set_type)
         => ( member(B,power_set(C))
          <=> ! [D] :
                ( ilf_type(D,set_type)
               => ( member(D,B)
                 => member(D,C) ) ) ) ) ) ).

fof(p20,axiom,
    ! [B] :
      ( ilf_type(B,set_type)
     => ( ~ empty(power_set(B))
        & ilf_type(power_set(B),set_type) ) ) ).

fof(p21,axiom,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ( ~ empty(C)
            & ilf_type(C,set_type) )
         => ( ilf_type(B,member_type(C))
          <=> member(B,C) ) ) ) ).

fof(p30,axiom,
    ! [B] : ilf_type(B,set_type) ).

fof(prove_relset_1_18,conjecture,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ilf_type(C,set_type)
         => ! [D] :
              ( ilf_type(D,relation_type(B,C))
             => intersection(D,cross_product(B,C)) = D ) ) ) ).

fof(subgoal_0,plain,
    ! [B] :
      ( ilf_type(B,set_type)
     => ! [C] :
          ( ilf_type(C,set_type)
         => ! [D] :
              ( ilf_type(D,relation_type(B,C))
             => intersection(D,cross_product(B,C)) = D ) ) ),
    inference(strip,[],[prove_relset_1_18]) ).

fof(negate_0_0,plain,
    ~ ! [B] :
        ( ilf_type(B,set_type)
       => ! [C] :
            ( ilf_type(C,set_type)
           => ! [D] :
                ( ilf_type(D,relation_type(B,C))
               => intersection(D,cross_product(B,C)) = D ) ) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ~ subset(B,C)
          | intersection(B,C) = B ) ),
    inference(canonicalize,[],[p1]) ).

fof(normalize_0_1,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ~ subset(B,C)
          | intersection(B,C) = B ) ),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [B,C] :
      ( ~ ilf_type(B,set_type)
      | ~ ilf_type(C,set_type)
      | ~ subset(B,C)
      | intersection(B,C) = B ),
    inference(clausify,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [B] : ilf_type(B,set_type),
    inference(canonicalize,[],[p30]) ).

fof(normalize_0_4,plain,
    ! [B] : ilf_type(B,set_type),
    inference(specialize,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ~ subset(B,C)
          <=> ? [D] :
                ( ~ member(D,C)
                & ilf_type(D,set_type)
                & member(D,B) ) ) ) ),
    inference(canonicalize,[],[p17]) ).

fof(normalize_0_6,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ~ subset(B,C)
          <=> ? [D] :
                ( ~ member(D,C)
                & ilf_type(D,set_type)
                & member(D,B) ) ) ) ),
    inference(specialize,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ! [B,C,D] :
      ( ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ member(skolemFOFtoCNF_D_2(B,C),C)
        | subset(B,C) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ilf_type(skolemFOFtoCNF_D_2(B,C),set_type)
        | subset(B,C) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | member(skolemFOFtoCNF_D_2(B,C),B)
        | subset(B,C) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ ilf_type(D,set_type)
        | ~ member(D,B)
        | ~ subset(B,C)
        | member(D,C) ) ),
    inference(clausify,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [B,C] :
      ( ~ ilf_type(B,set_type)
      | ~ ilf_type(C,set_type)
      | ~ member(skolemFOFtoCNF_D_2(B,C),C)
      | subset(B,C) ),
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [B,C] :
      ( ~ ilf_type(B,set_type)
      | ~ ilf_type(C,set_type)
      | member(skolemFOFtoCNF_D_2(B,C),B)
      | subset(B,C) ),
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_10,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | empty(C)
          | ( ~ ilf_type(B,member_type(C))
          <=> ~ member(B,C) ) ) ),
    inference(canonicalize,[],[p21]) ).

fof(normalize_0_11,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | empty(C)
          | ( ~ ilf_type(B,member_type(C))
          <=> ~ member(B,C) ) ) ),
    inference(specialize,[],[normalize_0_10]) ).

fof(normalize_0_12,plain,
    ! [B,C] :
      ( ( ~ ilf_type(B,member_type(C))
        | ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | empty(C)
        | member(B,C) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ member(B,C)
        | empty(C)
        | ilf_type(B,member_type(C)) ) ),
    inference(clausify,[],[normalize_0_11]) ).

fof(normalize_0_13,plain,
    ! [B,C] :
      ( ~ ilf_type(B,member_type(C))
      | ~ ilf_type(B,set_type)
      | ~ ilf_type(C,set_type)
      | empty(C)
      | member(B,C) ),
    inference(conjunct,[],[normalize_0_12]) ).

fof(normalize_0_14,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ~ ilf_type(C,member_type(power_set(B)))
          <=> ~ ilf_type(C,subset_type(B)) ) ) ),
    inference(canonicalize,[],[p13]) ).

fof(normalize_0_15,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ~ ilf_type(C,member_type(power_set(B)))
          <=> ~ ilf_type(C,subset_type(B)) ) ) ),
    inference(specialize,[],[normalize_0_14]) ).

fof(normalize_0_16,plain,
    ! [B,C] :
      ( ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,member_type(power_set(B)))
        | ~ ilf_type(C,set_type)
        | ilf_type(C,subset_type(B)) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ ilf_type(C,subset_type(B))
        | ilf_type(C,member_type(power_set(B))) ) ),
    inference(clausify,[],[normalize_0_15]) ).

fof(normalize_0_17,plain,
    ! [B,C] :
      ( ~ ilf_type(B,set_type)
      | ~ ilf_type(C,set_type)
      | ~ ilf_type(C,subset_type(B))
      | ilf_type(C,member_type(power_set(B))) ),
    inference(conjunct,[],[normalize_0_16]) ).

fof(normalize_0_18,plain,
    ? [B] :
      ( ilf_type(B,set_type)
      & ? [C] :
          ( ilf_type(C,set_type)
          & ? [D] :
              ( intersection(D,cross_product(B,C)) != D
              & ilf_type(D,relation_type(B,C)) ) ) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_19,plain,
    ? [B,C] :
      ( ilf_type(C,set_type)
      & ? [D] :
          ( intersection(D,cross_product(B,C)) != D
          & ilf_type(D,relation_type(B,C)) ) ),
    inference(simplify,[],[normalize_0_18,normalize_0_4]) ).

fof(normalize_0_20,plain,
    ( ilf_type(skolemFOFtoCNF_C_4,set_type)
    & ? [D] :
        ( intersection(D,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) != D
        & ilf_type(D,relation_type(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ) ),
    inference(skolemize,[],[normalize_0_19]) ).

fof(normalize_0_21,plain,
    ? [D] :
      ( intersection(D,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) != D
      & ilf_type(D,relation_type(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ),
    inference(conjunct,[],[normalize_0_20]) ).

fof(normalize_0_22,plain,
    ( intersection(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) != skolemFOFtoCNF_D_6
    & ilf_type(skolemFOFtoCNF_D_6,relation_type(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ),
    inference(skolemize,[],[normalize_0_21]) ).

fof(normalize_0_23,plain,
    ilf_type(skolemFOFtoCNF_D_6,relation_type(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)),
    inference(conjunct,[],[normalize_0_22]) ).

fof(normalize_0_24,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ! [D] :
                ( ~ ilf_type(D,subset_type(cross_product(B,C)))
                | ilf_type(D,relation_type(B,C)) )
            & ! [E] :
                ( ~ ilf_type(E,relation_type(B,C))
                | ilf_type(E,subset_type(cross_product(B,C))) ) ) ) ),
    inference(canonicalize,[],[p6]) ).

fof(normalize_0_25,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ! [D] :
                ( ~ ilf_type(D,subset_type(cross_product(B,C)))
                | ilf_type(D,relation_type(B,C)) )
            & ! [E] :
                ( ~ ilf_type(E,relation_type(B,C))
                | ilf_type(E,subset_type(cross_product(B,C))) ) ) ) ),
    inference(specialize,[],[normalize_0_24]) ).

fof(normalize_0_26,plain,
    ! [B,C,D,E] :
      ( ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ ilf_type(D,subset_type(cross_product(B,C)))
        | ilf_type(D,relation_type(B,C)) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ ilf_type(E,relation_type(B,C))
        | ilf_type(E,subset_type(cross_product(B,C))) ) ),
    inference(clausify,[],[normalize_0_25]) ).

fof(normalize_0_27,plain,
    ! [B,C,E] :
      ( ~ ilf_type(B,set_type)
      | ~ ilf_type(C,set_type)
      | ~ ilf_type(E,relation_type(B,C))
      | ilf_type(E,subset_type(cross_product(B,C))) ),
    inference(conjunct,[],[normalize_0_26]) ).

fof(normalize_0_28,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ( ~ empty(power_set(B))
        & ilf_type(power_set(B),set_type) ) ),
    inference(canonicalize,[],[p20]) ).

fof(normalize_0_29,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ( ~ empty(power_set(B))
        & ilf_type(power_set(B),set_type) ) ),
    inference(specialize,[],[normalize_0_28]) ).

fof(normalize_0_30,plain,
    ! [B] :
      ( ( ~ empty(power_set(B))
        | ~ ilf_type(B,set_type) )
      & ( ~ ilf_type(B,set_type)
        | ilf_type(power_set(B),set_type) ) ),
    inference(clausify,[],[normalize_0_29]) ).

fof(normalize_0_31,plain,
    ! [B] :
      ( ~ empty(power_set(B))
      | ~ ilf_type(B,set_type) ),
    inference(conjunct,[],[normalize_0_30]) ).

fof(normalize_0_32,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ~ member(B,power_set(C))
          <=> ? [D] :
                ( ~ member(D,C)
                & ilf_type(D,set_type)
                & member(D,B) ) ) ) ),
    inference(canonicalize,[],[p19]) ).

fof(normalize_0_33,plain,
    ! [B] :
      ( ~ ilf_type(B,set_type)
      | ! [C] :
          ( ~ ilf_type(C,set_type)
          | ( ~ member(B,power_set(C))
          <=> ? [D] :
                ( ~ member(D,C)
                & ilf_type(D,set_type)
                & member(D,B) ) ) ) ),
    inference(specialize,[],[normalize_0_32]) ).

fof(normalize_0_34,plain,
    ! [B,C,D] :
      ( ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ member(skolemFOFtoCNF_D_3(B,C),C)
        | member(B,power_set(C)) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ilf_type(skolemFOFtoCNF_D_3(B,C),set_type)
        | member(B,power_set(C)) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | member(B,power_set(C))
        | member(skolemFOFtoCNF_D_3(B,C),B) )
      & ( ~ ilf_type(B,set_type)
        | ~ ilf_type(C,set_type)
        | ~ ilf_type(D,set_type)
        | ~ member(B,power_set(C))
        | ~ member(D,B)
        | member(D,C) ) ),
    inference(clausify,[],[normalize_0_33]) ).

fof(normalize_0_35,plain,
    ! [B,C,D] :
      ( ~ ilf_type(B,set_type)
      | ~ ilf_type(C,set_type)
      | ~ ilf_type(D,set_type)
      | ~ member(B,power_set(C))
      | ~ member(D,B)
      | member(D,C) ),
    inference(conjunct,[],[normalize_0_34]) ).

fof(normalize_0_36,plain,
    intersection(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) != skolemFOFtoCNF_D_6,
    inference(conjunct,[],[normalize_0_22]) ).

cnf(refute_0_0,plain,
    ( ~ ilf_type(B,set_type)
    | ~ ilf_type(C,set_type)
    | ~ subset(B,C)
    | intersection(B,C) = B ),
    inference(canonicalize,[],[normalize_0_2]) ).

cnf(refute_0_1,plain,
    ilf_type(B,set_type),
    inference(canonicalize,[],[normalize_0_4]) ).

cnf(refute_0_2,plain,
    ( ~ ilf_type(C,set_type)
    | ~ subset(B,C)
    | intersection(B,C) = B ),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_0]) ).

cnf(refute_0_3,plain,
    ilf_type(C,set_type),
    inference(subst,[],[refute_0_1:[bind(B,$fot(C))]]) ).

cnf(refute_0_4,plain,
    ( ~ subset(B,C)
    | intersection(B,C) = B ),
    inference(resolve,[$cnf( ilf_type(C,set_type) )],[refute_0_3,refute_0_2]) ).

cnf(refute_0_5,plain,
    ( ~ subset(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))
    | intersection(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) = skolemFOFtoCNF_D_6 ),
    inference(subst,[],[refute_0_4:[bind(B,$fot(skolemFOFtoCNF_D_6)),bind(C,$fot(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))]]) ).

cnf(refute_0_6,plain,
    ( ~ ilf_type(B,set_type)
    | ~ ilf_type(C,set_type)
    | ~ member(skolemFOFtoCNF_D_2(B,C),C)
    | subset(B,C) ),
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_7,plain,
    ( ~ ilf_type(C,set_type)
    | ~ member(skolemFOFtoCNF_D_2(B,C),C)
    | subset(B,C) ),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_6]) ).

cnf(refute_0_8,plain,
    ( ~ member(skolemFOFtoCNF_D_2(B,C),C)
    | subset(B,C) ),
    inference(resolve,[$cnf( ilf_type(C,set_type) )],[refute_0_3,refute_0_7]) ).

cnf(refute_0_9,plain,
    ( ~ member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)),cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))
    | subset(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ),
    inference(subst,[],[refute_0_8:[bind(B,$fot(skolemFOFtoCNF_D_6)),bind(C,$fot(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))]]) ).

cnf(refute_0_10,plain,
    ( ~ ilf_type(B,set_type)
    | ~ ilf_type(C,set_type)
    | member(skolemFOFtoCNF_D_2(B,C),B)
    | subset(B,C) ),
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_11,plain,
    ( ~ ilf_type(C,set_type)
    | member(skolemFOFtoCNF_D_2(B,C),B)
    | subset(B,C) ),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_10]) ).

cnf(refute_0_12,plain,
    ( member(skolemFOFtoCNF_D_2(B,C),B)
    | subset(B,C) ),
    inference(resolve,[$cnf( ilf_type(C,set_type) )],[refute_0_3,refute_0_11]) ).

cnf(refute_0_13,plain,
    ( member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,C),skolemFOFtoCNF_D_6)
    | subset(skolemFOFtoCNF_D_6,C) ),
    inference(subst,[],[refute_0_12:[bind(B,$fot(skolemFOFtoCNF_D_6))]]) ).

cnf(refute_0_14,plain,
    ( ~ ilf_type(B,member_type(C))
    | ~ ilf_type(B,set_type)
    | ~ ilf_type(C,set_type)
    | empty(C)
    | member(B,C) ),
    inference(canonicalize,[],[normalize_0_13]) ).

cnf(refute_0_15,plain,
    ( ~ ilf_type(B,member_type(C))
    | ~ ilf_type(C,set_type)
    | empty(C)
    | member(B,C) ),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_14]) ).

cnf(refute_0_16,plain,
    ( ~ ilf_type(B,member_type(C))
    | empty(C)
    | member(B,C) ),
    inference(resolve,[$cnf( ilf_type(C,set_type) )],[refute_0_3,refute_0_15]) ).

cnf(refute_0_17,plain,
    ( ~ ilf_type(skolemFOFtoCNF_D_6,member_type(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))))
    | empty(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))
    | member(skolemFOFtoCNF_D_6,power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))) ),
    inference(subst,[],[refute_0_16:[bind(B,$fot(skolemFOFtoCNF_D_6)),bind(C,$fot(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))))]]) ).

cnf(refute_0_18,plain,
    ( ~ ilf_type(B,set_type)
    | ~ ilf_type(C,set_type)
    | ~ ilf_type(C,subset_type(B))
    | ilf_type(C,member_type(power_set(B))) ),
    inference(canonicalize,[],[normalize_0_17]) ).

cnf(refute_0_19,plain,
    ( ~ ilf_type(C,set_type)
    | ~ ilf_type(C,subset_type(B))
    | ilf_type(C,member_type(power_set(B))) ),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_18]) ).

cnf(refute_0_20,plain,
    ( ~ ilf_type(C,subset_type(B))
    | ilf_type(C,member_type(power_set(B))) ),
    inference(resolve,[$cnf( ilf_type(C,set_type) )],[refute_0_3,refute_0_19]) ).

cnf(refute_0_21,plain,
    ( ~ ilf_type(skolemFOFtoCNF_D_6,subset_type(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))
    | ilf_type(skolemFOFtoCNF_D_6,member_type(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))) ),
    inference(subst,[],[refute_0_20:[bind(B,$fot(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))),bind(C,$fot(skolemFOFtoCNF_D_6))]]) ).

cnf(refute_0_22,plain,
    ilf_type(skolemFOFtoCNF_D_6,relation_type(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)),
    inference(canonicalize,[],[normalize_0_23]) ).

cnf(refute_0_23,plain,
    ( ~ ilf_type(B,set_type)
    | ~ ilf_type(C,set_type)
    | ~ ilf_type(E,relation_type(B,C))
    | ilf_type(E,subset_type(cross_product(B,C))) ),
    inference(canonicalize,[],[normalize_0_27]) ).

cnf(refute_0_24,plain,
    ( ~ ilf_type(C,set_type)
    | ~ ilf_type(E,relation_type(B,C))
    | ilf_type(E,subset_type(cross_product(B,C))) ),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_23]) ).

cnf(refute_0_25,plain,
    ( ~ ilf_type(E,relation_type(B,C))
    | ilf_type(E,subset_type(cross_product(B,C))) ),
    inference(resolve,[$cnf( ilf_type(C,set_type) )],[refute_0_3,refute_0_24]) ).

cnf(refute_0_26,plain,
    ( ~ ilf_type(skolemFOFtoCNF_D_6,relation_type(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))
    | ilf_type(skolemFOFtoCNF_D_6,subset_type(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))) ),
    inference(subst,[],[refute_0_25:[bind(B,$fot(skolemFOFtoCNF_B_1)),bind(C,$fot(skolemFOFtoCNF_C_4)),bind(E,$fot(skolemFOFtoCNF_D_6))]]) ).

cnf(refute_0_27,plain,
    ilf_type(skolemFOFtoCNF_D_6,subset_type(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))),
    inference(resolve,[$cnf( ilf_type(skolemFOFtoCNF_D_6,relation_type(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) )],[refute_0_22,refute_0_26]) ).

cnf(refute_0_28,plain,
    ilf_type(skolemFOFtoCNF_D_6,member_type(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))),
    inference(resolve,[$cnf( ilf_type(skolemFOFtoCNF_D_6,subset_type(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))) )],[refute_0_27,refute_0_21]) ).

cnf(refute_0_29,plain,
    ( empty(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))
    | member(skolemFOFtoCNF_D_6,power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))) ),
    inference(resolve,[$cnf( ilf_type(skolemFOFtoCNF_D_6,member_type(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))) )],[refute_0_28,refute_0_17]) ).

cnf(refute_0_30,plain,
    ( ~ empty(power_set(B))
    | ~ ilf_type(B,set_type) ),
    inference(canonicalize,[],[normalize_0_31]) ).

cnf(refute_0_31,plain,
    ~ empty(power_set(B)),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_30]) ).

cnf(refute_0_32,plain,
    ~ empty(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))),
    inference(subst,[],[refute_0_31:[bind(B,$fot(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))]]) ).

cnf(refute_0_33,plain,
    member(skolemFOFtoCNF_D_6,power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))),
    inference(resolve,[$cnf( empty(power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))) )],[refute_0_29,refute_0_32]) ).

cnf(refute_0_34,plain,
    ( ~ ilf_type(B,set_type)
    | ~ ilf_type(C,set_type)
    | ~ ilf_type(D,set_type)
    | ~ member(B,power_set(C))
    | ~ member(D,B)
    | member(D,C) ),
    inference(canonicalize,[],[normalize_0_35]) ).

cnf(refute_0_35,plain,
    ( ~ ilf_type(C,set_type)
    | ~ ilf_type(D,set_type)
    | ~ member(B,power_set(C))
    | ~ member(D,B)
    | member(D,C) ),
    inference(resolve,[$cnf( ilf_type(B,set_type) )],[refute_0_1,refute_0_34]) ).

cnf(refute_0_36,plain,
    ( ~ ilf_type(D,set_type)
    | ~ member(B,power_set(C))
    | ~ member(D,B)
    | member(D,C) ),
    inference(resolve,[$cnf( ilf_type(C,set_type) )],[refute_0_3,refute_0_35]) ).

cnf(refute_0_37,plain,
    ilf_type(D,set_type),
    inference(subst,[],[refute_0_1:[bind(B,$fot(D))]]) ).

cnf(refute_0_38,plain,
    ( ~ member(B,power_set(C))
    | ~ member(D,B)
    | member(D,C) ),
    inference(resolve,[$cnf( ilf_type(D,set_type) )],[refute_0_37,refute_0_36]) ).

cnf(refute_0_39,plain,
    ( ~ member(X_532,skolemFOFtoCNF_D_6)
    | ~ member(skolemFOFtoCNF_D_6,power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))
    | member(X_532,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ),
    inference(subst,[],[refute_0_38:[bind(B,$fot(skolemFOFtoCNF_D_6)),bind(C,$fot(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))),bind(D,$fot(X_532))]]) ).

cnf(refute_0_40,plain,
    ( ~ member(X_532,skolemFOFtoCNF_D_6)
    | member(X_532,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D_6,power_set(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))) )],[refute_0_33,refute_0_39]) ).

cnf(refute_0_41,plain,
    ( ~ member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,C),skolemFOFtoCNF_D_6)
    | member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,C),cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ),
    inference(subst,[],[refute_0_40:[bind(X_532,$fot(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,C)))]]) ).

cnf(refute_0_42,plain,
    ( member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,C),cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))
    | subset(skolemFOFtoCNF_D_6,C) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,C),skolemFOFtoCNF_D_6) )],[refute_0_13,refute_0_41]) ).

cnf(refute_0_43,plain,
    ( member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)),cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4))
    | subset(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) ),
    inference(subst,[],[refute_0_42:[bind(C,$fot(cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)))]]) ).

cnf(refute_0_44,plain,
    subset(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D_2(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)),cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) )],[refute_0_43,refute_0_9]) ).

cnf(refute_0_45,plain,
    intersection(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) = skolemFOFtoCNF_D_6,
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) )],[refute_0_44,refute_0_5]) ).

cnf(refute_0_46,plain,
    intersection(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)) != skolemFOFtoCNF_D_6,
    inference(canonicalize,[],[normalize_0_36]) ).

cnf(refute_0_47,plain,
    $false,
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_D_6,cross_product(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_4)),skolemFOFtoCNF_D_6) )],[refute_0_45,refute_0_46]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : SET656+3 : TPTP v8.1.0. Released v2.2.0.
% 0.06/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.34  % Computer : n007.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 20:17:47 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.77/0.95  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.77/0.95  
% 0.77/0.95  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 0.77/0.96  
%------------------------------------------------------------------------------