TSTP Solution File: SET636+3 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET636+3 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n025.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 03:36:14 EDT 2022

% Result   : Theorem 0.18s 0.41s
% Output   : CNFRefutation 0.18s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :   13
% Syntax   : Number of formulae    :  115 (  27 unt;   0 def)
%            Number of atoms       :  242 (  43 equ)
%            Maximal formula atoms :    7 (   2 avg)
%            Number of connectives :  246 ( 119   ~;  80   |;  17   &)
%                                         (  24 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    7 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   5 con; 0-2 aty)
%            Number of variables   :  179 (   8 sgn 109   !;   7   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(intersection_defn,axiom,
    ! [B,C,D] :
      ( member(D,intersection(B,C))
    <=> ( member(D,B)
        & member(D,C) ) ) ).

fof(intersect_defn,axiom,
    ! [B,C] :
      ( intersect(B,C)
    <=> ? [D] :
          ( member(D,B)
          & member(D,C) ) ) ).

fof(empty_set_defn,axiom,
    ! [B] : ~ member(B,empty_set) ).

fof(disjoint_defn,axiom,
    ! [B,C] :
      ( disjoint(B,C)
    <=> ~ intersect(B,C) ) ).

fof(equal_defn,axiom,
    ! [B,C] :
      ( B = C
    <=> ( subset(B,C)
        & subset(C,B) ) ) ).

fof(symmetry_of_intersect,axiom,
    ! [B,C] :
      ( intersect(B,C)
     => intersect(C,B) ) ).

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

fof(prove_th118,conjecture,
    ! [B,C] :
      ( disjoint(B,C)
    <=> intersection(B,C) = empty_set ) ).

fof(subgoal_0,plain,
    ! [B,C] :
      ( disjoint(B,C)
     => intersection(B,C) = empty_set ),
    inference(strip,[],[prove_th118]) ).

fof(subgoal_1,plain,
    ! [B,C] :
      ( intersection(B,C) = empty_set
     => disjoint(B,C) ),
    inference(strip,[],[prove_th118]) ).

fof(negate_0_0,plain,
    ~ ! [B,C] :
        ( disjoint(B,C)
       => intersection(B,C) = empty_set ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ! [B,C] :
      ( ~ disjoint(B,C)
    <=> intersect(B,C) ),
    inference(canonicalize,[],[disjoint_defn]) ).

fof(normalize_0_1,plain,
    ! [B,C] :
      ( ~ disjoint(B,C)
    <=> intersect(B,C) ),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [B,C] :
      ( ( ~ disjoint(B,C)
        | ~ intersect(B,C) )
      & ( disjoint(B,C)
        | intersect(B,C) ) ),
    inference(clausify,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [B,C] :
      ( ~ disjoint(B,C)
      | ~ intersect(B,C) ),
    inference(conjunct,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ? [B,C] :
      ( intersection(B,C) != empty_set
      & disjoint(B,C) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_5,plain,
    ( intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) != empty_set
    & disjoint(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) ),
    inference(skolemize,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) != empty_set,
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ! [B] : ~ member(B,empty_set),
    inference(canonicalize,[],[empty_set_defn]) ).

fof(normalize_0_8,plain,
    ! [B] : ~ member(B,empty_set),
    inference(specialize,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [B,C] :
      ( ~ subset(B,C)
    <=> ? [D] :
          ( ~ member(D,C)
          & member(D,B) ) ),
    inference(canonicalize,[],[subset_defn]) ).

fof(normalize_0_10,plain,
    ! [B,C] :
      ( ~ subset(B,C)
    <=> ? [D] :
          ( ~ member(D,C)
          & member(D,B) ) ),
    inference(specialize,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    ! [B,C,D] :
      ( ( ~ member(skolemFOFtoCNF_D_1(B,C),C)
        | subset(B,C) )
      & ( member(skolemFOFtoCNF_D_1(B,C),B)
        | subset(B,C) )
      & ( ~ member(D,B)
        | ~ subset(B,C)
        | member(D,C) ) ),
    inference(clausify,[],[normalize_0_10]) ).

fof(normalize_0_12,plain,
    ! [B,C] :
      ( member(skolemFOFtoCNF_D_1(B,C),B)
      | subset(B,C) ),
    inference(conjunct,[],[normalize_0_11]) ).

fof(normalize_0_13,plain,
    ! [B,C] :
      ( B != C
    <=> ( ~ subset(B,C)
        | ~ subset(C,B) ) ),
    inference(canonicalize,[],[equal_defn]) ).

fof(normalize_0_14,plain,
    ! [B,C] :
      ( B != C
    <=> ( ~ subset(B,C)
        | ~ subset(C,B) ) ),
    inference(specialize,[],[normalize_0_13]) ).

fof(normalize_0_15,plain,
    ! [B,C] :
      ( ( B != C
        | subset(B,C) )
      & ( B != C
        | subset(C,B) )
      & ( ~ subset(B,C)
        | ~ subset(C,B)
        | B = C ) ),
    inference(clausify,[],[normalize_0_14]) ).

fof(normalize_0_16,plain,
    ! [B,C] :
      ( ~ subset(B,C)
      | ~ subset(C,B)
      | B = C ),
    inference(conjunct,[],[normalize_0_15]) ).

fof(normalize_0_17,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
    <=> ! [D] :
          ( ~ member(D,B)
          | ~ member(D,C) ) ),
    inference(canonicalize,[],[intersect_defn]) ).

fof(normalize_0_18,plain,
    ! [B,C,D] :
      ( ~ member(D,intersection(B,C))
    <=> ( ~ member(D,B)
        | ~ member(D,C) ) ),
    inference(canonicalize,[],[intersection_defn]) ).

fof(normalize_0_19,plain,
    ! [B,C,D] :
      ( ~ member(D,intersection(B,C))
    <=> ( ~ member(D,B)
        | ~ member(D,C) ) ),
    inference(specialize,[],[normalize_0_18]) ).

fof(normalize_0_20,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
    <=> ! [D] : ~ member(D,intersection(B,C)) ),
    inference(simplify,[],[normalize_0_17,normalize_0_19]) ).

fof(normalize_0_21,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
    <=> ! [D] : ~ member(D,intersection(B,C)) ),
    inference(specialize,[],[normalize_0_20]) ).

fof(normalize_0_22,plain,
    ! [B,C,D] :
      ( ( ~ intersect(B,C)
        | member(skolemFOFtoCNF_D(B,C),intersection(B,C)) )
      & ( ~ member(D,intersection(B,C))
        | intersect(B,C) ) ),
    inference(clausify,[],[normalize_0_21]) ).

fof(normalize_0_23,plain,
    ! [B,C,D] :
      ( ~ member(D,intersection(B,C))
      | intersect(B,C) ),
    inference(conjunct,[],[normalize_0_22]) ).

fof(normalize_0_24,plain,
    disjoint(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1),
    inference(conjunct,[],[normalize_0_5]) ).

cnf(refute_0_0,plain,
    ( ~ disjoint(B,C)
    | ~ intersect(B,C) ),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_1,plain,
    ( ~ disjoint(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1)
    | ~ intersect(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) ),
    inference(subst,[],[refute_0_0:[bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_C_1))]]) ).

cnf(refute_0_2,plain,
    intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) != empty_set,
    inference(canonicalize,[],[normalize_0_6]) ).

cnf(refute_0_3,plain,
    ~ member(B,empty_set),
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_4,plain,
    ~ member(skolemFOFtoCNF_D_1(empty_set,X_20),empty_set),
    inference(subst,[],[refute_0_3:[bind(B,$fot(skolemFOFtoCNF_D_1(empty_set,X_20)))]]) ).

cnf(refute_0_5,plain,
    ( member(skolemFOFtoCNF_D_1(B,C),B)
    | subset(B,C) ),
    inference(canonicalize,[],[normalize_0_12]) ).

cnf(refute_0_6,plain,
    ( member(skolemFOFtoCNF_D_1(empty_set,X_20),empty_set)
    | subset(empty_set,X_20) ),
    inference(subst,[],[refute_0_5:[bind(B,$fot(empty_set)),bind(C,$fot(X_20))]]) ).

cnf(refute_0_7,plain,
    subset(empty_set,X_20),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D_1(empty_set,X_20),empty_set) )],[refute_0_6,refute_0_4]) ).

cnf(refute_0_8,plain,
    subset(empty_set,X_145),
    inference(subst,[],[refute_0_7:[bind(X_20,$fot(X_145))]]) ).

cnf(refute_0_9,plain,
    ( ~ subset(B,C)
    | ~ subset(C,B)
    | B = C ),
    inference(canonicalize,[],[normalize_0_16]) ).

cnf(refute_0_10,plain,
    ( ~ subset(X_145,empty_set)
    | ~ subset(empty_set,X_145)
    | empty_set = X_145 ),
    inference(subst,[],[refute_0_9:[bind(B,$fot(empty_set)),bind(C,$fot(X_145))]]) ).

cnf(refute_0_11,plain,
    ( ~ subset(X_145,empty_set)
    | empty_set = X_145 ),
    inference(resolve,[$cnf( subset(empty_set,X_145) )],[refute_0_8,refute_0_10]) ).

cnf(refute_0_12,plain,
    ( ~ subset(intersection(X_165,X_166),empty_set)
    | empty_set = intersection(X_165,X_166) ),
    inference(subst,[],[refute_0_11:[bind(X_145,$fot(intersection(X_165,X_166)))]]) ).

cnf(refute_0_13,plain,
    ( member(skolemFOFtoCNF_D_1(intersection(X_41,X_42),C),intersection(X_41,X_42))
    | subset(intersection(X_41,X_42),C) ),
    inference(subst,[],[refute_0_5:[bind(B,$fot(intersection(X_41,X_42)))]]) ).

cnf(refute_0_14,plain,
    ( ~ member(D,intersection(B,C))
    | intersect(B,C) ),
    inference(canonicalize,[],[normalize_0_23]) ).

cnf(refute_0_15,plain,
    ( ~ member(skolemFOFtoCNF_D_1(intersection(X_41,X_42),C),intersection(X_41,X_42))
    | intersect(X_41,X_42) ),
    inference(subst,[],[refute_0_14:[bind(B,$fot(X_41)),bind(C,$fot(X_42)),bind(D,$fot(skolemFOFtoCNF_D_1(intersection(X_41,X_42),C)))]]) ).

cnf(refute_0_16,plain,
    ( intersect(X_41,X_42)
    | subset(intersection(X_41,X_42),C) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D_1(intersection(X_41,X_42),C),intersection(X_41,X_42)) )],[refute_0_13,refute_0_15]) ).

cnf(refute_0_17,plain,
    ( intersect(X_165,X_166)
    | subset(intersection(X_165,X_166),empty_set) ),
    inference(subst,[],[refute_0_16:[bind(C,$fot(empty_set)),bind(X_41,$fot(X_165)),bind(X_42,$fot(X_166))]]) ).

cnf(refute_0_18,plain,
    ( empty_set = intersection(X_165,X_166)
    | intersect(X_165,X_166) ),
    inference(resolve,[$cnf( subset(intersection(X_165,X_166),empty_set) )],[refute_0_17,refute_0_12]) ).

cnf(refute_0_19,plain,
    ( empty_set = intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1)
    | intersect(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) ),
    inference(subst,[],[refute_0_18:[bind(X_165,$fot(skolemFOFtoCNF_B)),bind(X_166,$fot(skolemFOFtoCNF_C_1))]]) ).

cnf(refute_0_20,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_0_21,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_0_22,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_0_20,refute_0_21]) ).

cnf(refute_0_23,plain,
    ( empty_set != intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1)
    | intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) = empty_set ),
    inference(subst,[],[refute_0_22:[bind(X,$fot(empty_set)),bind(Y,$fot(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1)))]]) ).

cnf(refute_0_24,plain,
    ( intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) = empty_set
    | intersect(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) ),
    inference(resolve,[$cnf( $equal(empty_set,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1)) )],[refute_0_19,refute_0_23]) ).

cnf(refute_0_25,plain,
    ( empty_set != empty_set
    | intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) != empty_set
    | intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) = empty_set ),
    introduced(tautology,[equality,[$cnf( $equal(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1),empty_set) ),[1],$fot(empty_set)]]) ).

cnf(refute_0_26,plain,
    ( empty_set != empty_set
    | intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) = empty_set
    | intersect(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) ),
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1),empty_set) )],[refute_0_24,refute_0_25]) ).

cnf(refute_0_27,plain,
    ( empty_set != empty_set
    | intersect(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) ),
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1),empty_set) )],[refute_0_26,refute_0_2]) ).

cnf(refute_0_28,plain,
    empty_set = empty_set,
    introduced(tautology,[refl,[$fot(empty_set)]]) ).

cnf(refute_0_29,plain,
    intersect(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1),
    inference(resolve,[$cnf( $equal(empty_set,empty_set) )],[refute_0_28,refute_0_27]) ).

cnf(refute_0_30,plain,
    ~ disjoint(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1),
    inference(resolve,[$cnf( intersect(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) )],[refute_0_29,refute_0_1]) ).

cnf(refute_0_31,plain,
    disjoint(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1),
    inference(canonicalize,[],[normalize_0_24]) ).

cnf(refute_0_32,plain,
    $false,
    inference(resolve,[$cnf( disjoint(skolemFOFtoCNF_B,skolemFOFtoCNF_C_1) )],[refute_0_31,refute_0_30]) ).

fof(negate_1_0,plain,
    ~ ! [B,C] :
        ( intersection(B,C) = empty_set
       => disjoint(B,C) ),
    inference(negate,[],[subgoal_1]) ).

fof(normalize_1_0,plain,
    ! [B,C] :
      ( ~ disjoint(B,C)
    <=> intersect(B,C) ),
    inference(canonicalize,[],[disjoint_defn]) ).

fof(normalize_1_1,plain,
    ! [B,C] :
      ( ~ disjoint(B,C)
    <=> intersect(B,C) ),
    inference(specialize,[],[normalize_1_0]) ).

fof(normalize_1_2,plain,
    ! [B,C] :
      ( ( ~ disjoint(B,C)
        | ~ intersect(B,C) )
      & ( disjoint(B,C)
        | intersect(B,C) ) ),
    inference(clausify,[],[normalize_1_1]) ).

fof(normalize_1_3,plain,
    ! [B,C] :
      ( ~ disjoint(B,C)
      | ~ intersect(B,C) ),
    inference(conjunct,[],[normalize_1_2]) ).

fof(normalize_1_4,plain,
    ! [B,C] :
      ( disjoint(B,C)
      | intersect(B,C) ),
    inference(conjunct,[],[normalize_1_2]) ).

fof(normalize_1_5,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
      | intersect(C,B) ),
    inference(canonicalize,[],[symmetry_of_intersect]) ).

fof(normalize_1_6,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
      | intersect(C,B) ),
    inference(specialize,[],[normalize_1_5]) ).

fof(normalize_1_7,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
    <=> ! [D] :
          ( ~ member(D,B)
          | ~ member(D,C) ) ),
    inference(canonicalize,[],[intersect_defn]) ).

fof(normalize_1_8,plain,
    ! [B,C,D] :
      ( ~ member(D,intersection(B,C))
    <=> ( ~ member(D,B)
        | ~ member(D,C) ) ),
    inference(canonicalize,[],[intersection_defn]) ).

fof(normalize_1_9,plain,
    ! [B,C,D] :
      ( ~ member(D,intersection(B,C))
    <=> ( ~ member(D,B)
        | ~ member(D,C) ) ),
    inference(specialize,[],[normalize_1_8]) ).

fof(normalize_1_10,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
    <=> ! [D] : ~ member(D,intersection(B,C)) ),
    inference(simplify,[],[normalize_1_7,normalize_1_9]) ).

fof(normalize_1_11,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
    <=> ! [D] : ~ member(D,intersection(B,C)) ),
    inference(specialize,[],[normalize_1_10]) ).

fof(normalize_1_12,plain,
    ! [B,C,D] :
      ( ( ~ intersect(B,C)
        | member(skolemFOFtoCNF_D(B,C),intersection(B,C)) )
      & ( ~ member(D,intersection(B,C))
        | intersect(B,C) ) ),
    inference(clausify,[],[normalize_1_11]) ).

fof(normalize_1_13,plain,
    ! [B,C] :
      ( ~ intersect(B,C)
      | member(skolemFOFtoCNF_D(B,C),intersection(B,C)) ),
    inference(conjunct,[],[normalize_1_12]) ).

fof(normalize_1_14,plain,
    ? [B,C] :
      ( ~ disjoint(B,C)
      & intersection(B,C) = empty_set ),
    inference(canonicalize,[],[negate_1_0]) ).

fof(normalize_1_15,plain,
    ( ~ disjoint(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2)
    & intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2) = empty_set ),
    inference(skolemize,[],[normalize_1_14]) ).

fof(normalize_1_16,plain,
    intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2) = empty_set,
    inference(conjunct,[],[normalize_1_15]) ).

fof(normalize_1_17,plain,
    ! [B] : ~ member(B,empty_set),
    inference(canonicalize,[],[empty_set_defn]) ).

fof(normalize_1_18,plain,
    ! [B] : ~ member(B,empty_set),
    inference(specialize,[],[normalize_1_17]) ).

fof(normalize_1_19,plain,
    ~ disjoint(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),
    inference(conjunct,[],[normalize_1_15]) ).

cnf(refute_1_0,plain,
    ( ~ disjoint(B,C)
    | ~ intersect(B,C) ),
    inference(canonicalize,[],[normalize_1_3]) ).

cnf(refute_1_1,plain,
    ( ~ disjoint(X_183,X_182)
    | ~ intersect(X_183,X_182) ),
    inference(subst,[],[refute_1_0:[bind(B,$fot(X_183)),bind(C,$fot(X_182))]]) ).

cnf(refute_1_2,plain,
    ( disjoint(B,C)
    | intersect(B,C) ),
    inference(canonicalize,[],[normalize_1_4]) ).

cnf(refute_1_3,plain,
    ( disjoint(X_180,X_181)
    | intersect(X_180,X_181) ),
    inference(subst,[],[refute_1_2:[bind(B,$fot(X_180)),bind(C,$fot(X_181))]]) ).

cnf(refute_1_4,plain,
    ( ~ intersect(B,C)
    | intersect(C,B) ),
    inference(canonicalize,[],[normalize_1_6]) ).

cnf(refute_1_5,plain,
    ( ~ intersect(X_180,X_181)
    | intersect(X_181,X_180) ),
    inference(subst,[],[refute_1_4:[bind(B,$fot(X_180)),bind(C,$fot(X_181))]]) ).

cnf(refute_1_6,plain,
    ( disjoint(X_180,X_181)
    | intersect(X_181,X_180) ),
    inference(resolve,[$cnf( intersect(X_180,X_181) )],[refute_1_3,refute_1_5]) ).

cnf(refute_1_7,plain,
    ( disjoint(X_182,X_183)
    | intersect(X_183,X_182) ),
    inference(subst,[],[refute_1_6:[bind(X_180,$fot(X_182)),bind(X_181,$fot(X_183))]]) ).

cnf(refute_1_8,plain,
    ( ~ disjoint(X_183,X_182)
    | disjoint(X_182,X_183) ),
    inference(resolve,[$cnf( intersect(X_183,X_182) )],[refute_1_7,refute_1_1]) ).

cnf(refute_1_9,plain,
    ( ~ disjoint(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_1)
    | disjoint(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2) ),
    inference(subst,[],[refute_1_8:[bind(X_182,$fot(skolemFOFtoCNF_B_1)),bind(X_183,$fot(skolemFOFtoCNF_C_2))]]) ).

cnf(refute_1_10,plain,
    ( disjoint(X_198,X_197)
    | intersect(X_197,X_198) ),
    inference(subst,[],[refute_1_6:[bind(X_180,$fot(X_198)),bind(X_181,$fot(X_197))]]) ).

cnf(refute_1_11,plain,
    ( ~ intersect(B,C)
    | member(skolemFOFtoCNF_D(B,C),intersection(B,C)) ),
    inference(canonicalize,[],[normalize_1_13]) ).

cnf(refute_1_12,plain,
    ( ~ intersect(X_197,X_198)
    | member(skolemFOFtoCNF_D(X_197,X_198),intersection(X_197,X_198)) ),
    inference(subst,[],[refute_1_11:[bind(B,$fot(X_197)),bind(C,$fot(X_198))]]) ).

cnf(refute_1_13,plain,
    ( disjoint(X_198,X_197)
    | member(skolemFOFtoCNF_D(X_197,X_198),intersection(X_197,X_198)) ),
    inference(resolve,[$cnf( intersect(X_197,X_198) )],[refute_1_10,refute_1_12]) ).

cnf(refute_1_14,plain,
    ( disjoint(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_1)
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2)) ),
    inference(subst,[],[refute_1_13:[bind(X_197,$fot(skolemFOFtoCNF_B_1)),bind(X_198,$fot(skolemFOFtoCNF_C_2))]]) ).

cnf(refute_1_15,plain,
    intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2) = empty_set,
    inference(canonicalize,[],[normalize_1_16]) ).

cnf(refute_1_16,plain,
    ( intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2) != empty_set
    | ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2))
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),empty_set) ),
    introduced(tautology,[equality,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2)) ),[1],$fot(empty_set)]]) ).

cnf(refute_1_17,plain,
    ( ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2))
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),empty_set) ),
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),empty_set) )],[refute_1_15,refute_1_16]) ).

cnf(refute_1_18,plain,
    ( disjoint(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_1)
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),empty_set) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),intersection(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2)) )],[refute_1_14,refute_1_17]) ).

cnf(refute_1_19,plain,
    ~ member(B,empty_set),
    inference(canonicalize,[],[normalize_1_18]) ).

cnf(refute_1_20,plain,
    ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),empty_set),
    inference(subst,[],[refute_1_19:[bind(B,$fot(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2)))]]) ).

cnf(refute_1_21,plain,
    disjoint(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_1),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),empty_set) )],[refute_1_18,refute_1_20]) ).

cnf(refute_1_22,plain,
    disjoint(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),
    inference(resolve,[$cnf( disjoint(skolemFOFtoCNF_C_2,skolemFOFtoCNF_B_1) )],[refute_1_21,refute_1_9]) ).

cnf(refute_1_23,plain,
    ~ disjoint(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2),
    inference(canonicalize,[],[normalize_1_19]) ).

cnf(refute_1_24,plain,
    $false,
    inference(resolve,[$cnf( disjoint(skolemFOFtoCNF_B_1,skolemFOFtoCNF_C_2) )],[refute_1_22,refute_1_23]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem  : SET636+3 : TPTP v8.1.0. Released v2.2.0.
% 0.03/0.12  % Command  : metis --show proof --show saturation %s
% 0.12/0.33  % Computer : n025.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Mon Jul 11 04:21:17 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.33  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.18/0.41  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.18/0.41  
% 0.18/0.41  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.18/0.42  
%------------------------------------------------------------------------------