TSTP Solution File: SET183+3 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET183+3 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n011.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 03:33:23 EDT 2022

% Result   : Theorem 0.47s 0.64s
% Output   : CNFRefutation 0.47s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :   12
% Syntax   : Number of formulae    :   80 (  23 unt;   0 def)
%            Number of atoms       :  177 (  48 equ)
%            Maximal formula atoms :    7 (   2 avg)
%            Number of connectives :  175 (  78   ~;  72   |;  12   &)
%                                         (   9 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :  130 (   3 sgn  60   !;   4   ?)

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

fof(intersection_is_subset,axiom,
    ! [B,C] : subset(intersection(B,C),B) ).

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

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

fof(commutativity_of_intersection,axiom,
    ! [B,C] : intersection(B,C) = intersection(C,B) ).

fof(prove_subset_intersection,conjecture,
    ! [B,C] :
      ( subset(B,C)
     => intersection(B,C) = B ) ).

fof(subgoal_0,plain,
    ! [B,C] :
      ( subset(B,C)
     => intersection(B,C) = B ),
    inference(strip,[],[prove_subset_intersection]) ).

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

fof(normalize_0_0,plain,
    ! [B,C] : subset(intersection(B,C),B),
    inference(canonicalize,[],[intersection_is_subset]) ).

fof(normalize_0_1,plain,
    ! [B,C] : subset(intersection(B,C),B),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [B,C] : intersection(B,C) = intersection(C,B),
    inference(canonicalize,[],[commutativity_of_intersection]) ).

fof(normalize_0_3,plain,
    ! [B,C] : intersection(B,C) = intersection(C,B),
    inference(specialize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [B,C] :
      ( B != C
    <=> ( ~ subset(B,C)
        | ~ subset(C,B) ) ),
    inference(canonicalize,[],[equal_defn]) ).

fof(normalize_0_5,plain,
    ! [B,C] :
      ( B != C
    <=> ( ~ subset(B,C)
        | ~ subset(C,B) ) ),
    inference(specialize,[],[normalize_0_4]) ).

fof(normalize_0_6,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_5]) ).

fof(normalize_0_7,plain,
    ! [B,C] :
      ( ~ subset(B,C)
      | ~ subset(C,B)
      | B = C ),
    inference(conjunct,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [B,C] :
      ( ~ subset(B,C)
    <=> ? [D] :
          ( ~ member(D,C)
          & member(D,B) ) ),
    inference(canonicalize,[],[subset_defn]) ).

fof(normalize_0_9,plain,
    ! [B,C] :
      ( ~ subset(B,C)
    <=> ? [D] :
          ( ~ member(D,C)
          & member(D,B) ) ),
    inference(specialize,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    ! [B,C,D] :
      ( ( ~ member(skolemFOFtoCNF_D(B,C),C)
        | subset(B,C) )
      & ( member(skolemFOFtoCNF_D(B,C),B)
        | subset(B,C) )
      & ( ~ member(D,B)
        | ~ subset(B,C)
        | member(D,C) ) ),
    inference(clausify,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    ! [B,C] :
      ( ~ member(skolemFOFtoCNF_D(B,C),C)
      | subset(B,C) ),
    inference(conjunct,[],[normalize_0_10]) ).

fof(normalize_0_12,plain,
    ! [B,C] :
      ( member(skolemFOFtoCNF_D(B,C),B)
      | subset(B,C) ),
    inference(conjunct,[],[normalize_0_10]) ).

fof(normalize_0_13,plain,
    ? [B,C] :
      ( intersection(B,C) != B
      & subset(B,C) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_14,plain,
    ( intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C) != skolemFOFtoCNF_B
    & subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    inference(skolemize,[],[normalize_0_13]) ).

fof(normalize_0_15,plain,
    subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_14]) ).

fof(normalize_0_16,plain,
    ! [B,C,D] :
      ( ~ member(D,B)
      | ~ subset(B,C)
      | member(D,C) ),
    inference(conjunct,[],[normalize_0_10]) ).

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

fof(normalize_0_18,plain,
    ! [B,C,D] :
      ( ~ member(D,intersection(B,C))
    <=> ( ~ member(D,B)
        | ~ member(D,C) ) ),
    inference(specialize,[],[normalize_0_17]) ).

fof(normalize_0_19,plain,
    ! [B,C,D] :
      ( ( ~ member(D,intersection(B,C))
        | member(D,B) )
      & ( ~ member(D,intersection(B,C))
        | member(D,C) )
      & ( ~ member(D,B)
        | ~ member(D,C)
        | member(D,intersection(B,C)) ) ),
    inference(clausify,[],[normalize_0_18]) ).

fof(normalize_0_20,plain,
    ! [B,C,D] :
      ( ~ member(D,B)
      | ~ member(D,C)
      | member(D,intersection(B,C)) ),
    inference(conjunct,[],[normalize_0_19]) ).

fof(normalize_0_21,plain,
    intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C) != skolemFOFtoCNF_B,
    inference(conjunct,[],[normalize_0_14]) ).

cnf(refute_0_0,plain,
    subset(intersection(B,C),B),
    inference(canonicalize,[],[normalize_0_1]) ).

cnf(refute_0_1,plain,
    intersection(B,C) = intersection(C,B),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_2,plain,
    ( intersection(B,C) != intersection(C,B)
    | ~ subset(intersection(B,C),B)
    | subset(intersection(C,B),B) ),
    introduced(tautology,[equality,[$cnf( subset(intersection(B,C),B) ),[0],$fot(intersection(C,B))]]) ).

cnf(refute_0_3,plain,
    ( ~ subset(intersection(B,C),B)
    | subset(intersection(C,B),B) ),
    inference(resolve,[$cnf( $equal(intersection(B,C),intersection(C,B)) )],[refute_0_1,refute_0_2]) ).

cnf(refute_0_4,plain,
    subset(intersection(C,B),B),
    inference(resolve,[$cnf( subset(intersection(B,C),B) )],[refute_0_0,refute_0_3]) ).

cnf(refute_0_5,plain,
    subset(intersection(C,X_26),X_26),
    inference(subst,[],[refute_0_4:[bind(B,$fot(X_26))]]) ).

cnf(refute_0_6,plain,
    ( ~ subset(B,C)
    | ~ subset(C,B)
    | B = C ),
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_7,plain,
    ( ~ subset(X_26,intersection(C,X_26))
    | ~ subset(intersection(C,X_26),X_26)
    | intersection(C,X_26) = X_26 ),
    inference(subst,[],[refute_0_6:[bind(B,$fot(intersection(C,X_26))),bind(C,$fot(X_26))]]) ).

cnf(refute_0_8,plain,
    ( ~ subset(X_26,intersection(C,X_26))
    | intersection(C,X_26) = X_26 ),
    inference(resolve,[$cnf( subset(intersection(C,X_26),X_26) )],[refute_0_5,refute_0_7]) ).

cnf(refute_0_9,plain,
    ( ~ subset(X_28,intersection(X_27,X_28))
    | intersection(X_27,X_28) = X_28 ),
    inference(subst,[],[refute_0_8:[bind(C,$fot(X_27)),bind(X_26,$fot(X_28))]]) ).

cnf(refute_0_10,plain,
    intersection(X_28,X_27) = intersection(X_27,X_28),
    inference(subst,[],[refute_0_1:[bind(B,$fot(X_28)),bind(C,$fot(X_27))]]) ).

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

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

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

cnf(refute_0_14,plain,
    ( intersection(X_28,X_27) != intersection(X_27,X_28)
    | intersection(X_27,X_28) = intersection(X_28,X_27) ),
    inference(subst,[],[refute_0_13:[bind(X,$fot(intersection(X_28,X_27))),bind(Y,$fot(intersection(X_27,X_28)))]]) ).

cnf(refute_0_15,plain,
    intersection(X_27,X_28) = intersection(X_28,X_27),
    inference(resolve,[$cnf( $equal(intersection(X_28,X_27),intersection(X_27,X_28)) )],[refute_0_10,refute_0_14]) ).

cnf(refute_0_16,plain,
    ( intersection(X_27,X_28) != intersection(X_28,X_27)
    | ~ subset(X_28,intersection(X_28,X_27))
    | subset(X_28,intersection(X_27,X_28)) ),
    introduced(tautology,[equality,[$cnf( ~ subset(X_28,intersection(X_27,X_28)) ),[1],$fot(intersection(X_28,X_27))]]) ).

cnf(refute_0_17,plain,
    ( ~ subset(X_28,intersection(X_28,X_27))
    | subset(X_28,intersection(X_27,X_28)) ),
    inference(resolve,[$cnf( $equal(intersection(X_27,X_28),intersection(X_28,X_27)) )],[refute_0_15,refute_0_16]) ).

cnf(refute_0_18,plain,
    ( ~ subset(X_28,intersection(X_28,X_27))
    | intersection(X_27,X_28) = X_28 ),
    inference(resolve,[$cnf( subset(X_28,intersection(X_27,X_28)) )],[refute_0_17,refute_0_9]) ).

cnf(refute_0_19,plain,
    ( ~ subset(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C))
    | intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B) = skolemFOFtoCNF_B ),
    inference(subst,[],[refute_0_18:[bind(X_27,$fot(skolemFOFtoCNF_C)),bind(X_28,$fot(skolemFOFtoCNF_B))]]) ).

cnf(refute_0_20,plain,
    ( ~ member(skolemFOFtoCNF_D(B,C),C)
    | subset(B,C) ),
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_21,plain,
    ( ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C))
    | subset(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),
    inference(subst,[],[refute_0_20:[bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)))]]) ).

cnf(refute_0_22,plain,
    ( member(skolemFOFtoCNF_D(B,C),B)
    | subset(B,C) ),
    inference(canonicalize,[],[normalize_0_12]) ).

cnf(refute_0_23,plain,
    ( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),skolemFOFtoCNF_B)
    | subset(skolemFOFtoCNF_B,X_287) ),
    inference(subst,[],[refute_0_22:[bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(X_287))]]) ).

cnf(refute_0_24,plain,
    ( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),skolemFOFtoCNF_B)
    | subset(skolemFOFtoCNF_B,C) ),
    inference(subst,[],[refute_0_22:[bind(B,$fot(skolemFOFtoCNF_B))]]) ).

cnf(refute_0_25,plain,
    subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_15]) ).

cnf(refute_0_26,plain,
    ( ~ member(D,B)
    | ~ subset(B,C)
    | member(D,C) ),
    inference(canonicalize,[],[normalize_0_16]) ).

cnf(refute_0_27,plain,
    ( ~ member(X_50,skolemFOFtoCNF_B)
    | ~ subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | member(X_50,skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_26:[bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_C)),bind(D,$fot(X_50))]]) ).

cnf(refute_0_28,plain,
    ( ~ member(X_50,skolemFOFtoCNF_B)
    | member(X_50,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C) )],[refute_0_25,refute_0_27]) ).

cnf(refute_0_29,plain,
    ( ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),skolemFOFtoCNF_B)
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_28:[bind(X_50,$fot(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C)))]]) ).

cnf(refute_0_30,plain,
    ( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),skolemFOFtoCNF_C)
    | subset(skolemFOFtoCNF_B,C) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),skolemFOFtoCNF_B) )],[refute_0_24,refute_0_29]) ).

cnf(refute_0_31,plain,
    ( ~ member(D,B)
    | ~ member(D,C)
    | member(D,intersection(B,C)) ),
    inference(canonicalize,[],[normalize_0_20]) ).

cnf(refute_0_32,plain,
    ( ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),X_82)
    | ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),skolemFOFtoCNF_C)
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),intersection(skolemFOFtoCNF_C,X_82)) ),
    inference(subst,[],[refute_0_31:[bind(B,$fot(skolemFOFtoCNF_C)),bind(C,$fot(X_82)),bind(D,$fot(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C)))]]) ).

cnf(refute_0_33,plain,
    ( ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),X_82)
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),intersection(skolemFOFtoCNF_C,X_82))
    | subset(skolemFOFtoCNF_B,C) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,C),skolemFOFtoCNF_C) )],[refute_0_30,refute_0_32]) ).

cnf(refute_0_34,plain,
    ( ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),skolemFOFtoCNF_B)
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B))
    | subset(skolemFOFtoCNF_B,X_287) ),
    inference(subst,[],[refute_0_33:[bind(C,$fot(X_287)),bind(X_82,$fot(skolemFOFtoCNF_B))]]) ).

cnf(refute_0_35,plain,
    ( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B))
    | subset(skolemFOFtoCNF_B,X_287) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),skolemFOFtoCNF_B) )],[refute_0_23,refute_0_34]) ).

cnf(refute_0_36,plain,
    ( intersection(B,C) != intersection(C,B)
    | intersection(C,B) = intersection(B,C) ),
    inference(subst,[],[refute_0_13:[bind(X,$fot(intersection(B,C))),bind(Y,$fot(intersection(C,B)))]]) ).

cnf(refute_0_37,plain,
    intersection(C,B) = intersection(B,C),
    inference(resolve,[$cnf( $equal(intersection(B,C),intersection(C,B)) )],[refute_0_1,refute_0_36]) ).

cnf(refute_0_38,plain,
    intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B) = intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(subst,[],[refute_0_37:[bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_C))]]) ).

cnf(refute_0_39,plain,
    ( intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B) != intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B))
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),
    introduced(tautology,[equality,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B)) ),[1],$fot(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C))]]) ).

cnf(refute_0_40,plain,
    ( ~ member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B))
    | member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_38,refute_0_39]) ).

cnf(refute_0_41,plain,
    ( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C))
    | subset(skolemFOFtoCNF_B,X_287) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,X_287),intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B)) )],[refute_0_35,refute_0_40]) ).

cnf(refute_0_42,plain,
    ( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C))
    | subset(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),
    inference(subst,[],[refute_0_41:[bind(X_287,$fot(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)))]]) ).

cnf(refute_0_43,plain,
    subset(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_42,refute_0_21]) ).

cnf(refute_0_44,plain,
    intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B) = skolemFOFtoCNF_B,
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_B,intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_43,refute_0_19]) ).

cnf(refute_0_45,plain,
    ( intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B) != intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B) != skolemFOFtoCNF_B
    | intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C) = skolemFOFtoCNF_B ),
    introduced(tautology,[equality,[$cnf( $equal(intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B),skolemFOFtoCNF_B) ),[0],$fot(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C))]]) ).

cnf(refute_0_46,plain,
    ( intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B) != skolemFOFtoCNF_B
    | intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C) = skolemFOFtoCNF_B ),
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B),intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_38,refute_0_45]) ).

cnf(refute_0_47,plain,
    intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C) = skolemFOFtoCNF_B,
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_C,skolemFOFtoCNF_B),skolemFOFtoCNF_B) )],[refute_0_44,refute_0_46]) ).

cnf(refute_0_48,plain,
    intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C) != skolemFOFtoCNF_B,
    inference(canonicalize,[],[normalize_0_21]) ).

cnf(refute_0_49,plain,
    $false,
    inference(resolve,[$cnf( $equal(intersection(skolemFOFtoCNF_B,skolemFOFtoCNF_C),skolemFOFtoCNF_B) )],[refute_0_47,refute_0_48]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET183+3 : TPTP v8.1.0. Released v2.2.0.
% 0.07/0.13  % Command  : metis --show proof --show saturation %s
% 0.12/0.34  % Computer : n011.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Sun Jul 10 21:53:56 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.12/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.47/0.64  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.47/0.64  
% 0.47/0.64  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.47/0.65  
%------------------------------------------------------------------------------