TSTP Solution File: SEU162+3 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SEU162+3 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n013.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 12:38:56 EDT 2022

% Result   : Theorem 0.13s 0.36s
% Output   : CNFRefutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   67 (  16 unt;   0 def)
%            Number of atoms       :  125 (  44 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :  118 (  60   ~;  39   |;   7   &)
%                                         (   6 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :   78 (   0 sgn  50   !;   4   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(l25_zfmisc_1,axiom,
    ! [A,B] :
      ~ ( disjoint(singleton(A),B)
        & in(A,B) ) ).

fof(l28_zfmisc_1,axiom,
    ! [A,B] :
      ( ~ in(A,B)
     => disjoint(singleton(A),B) ) ).

fof(symmetry_r1_xboole_0,axiom,
    ! [A,B] :
      ( disjoint(A,B)
     => disjoint(B,A) ) ).

fof(t65_zfmisc_1,conjecture,
    ! [A,B] :
      ( set_difference(A,singleton(B)) = A
    <=> ~ in(B,A) ) ).

fof(t83_xboole_1,axiom,
    ! [A,B] :
      ( disjoint(A,B)
    <=> set_difference(A,B) = A ) ).

fof(subgoal_0,plain,
    ! [A,B] :
      ( set_difference(A,singleton(B)) = A
     => ~ in(B,A) ),
    inference(strip,[],[t65_zfmisc_1]) ).

fof(subgoal_1,plain,
    ! [A,B] :
      ( ~ in(B,A)
     => set_difference(A,singleton(B)) = A ),
    inference(strip,[],[t65_zfmisc_1]) ).

fof(negate_0_0,plain,
    ~ ! [A,B] :
        ( set_difference(A,singleton(B)) = A
       => ~ in(B,A) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ! [A,B] :
      ( ~ disjoint(singleton(A),B)
      | ~ in(A,B) ),
    inference(canonicalize,[],[l25_zfmisc_1]) ).

fof(normalize_0_1,plain,
    ! [A,B] :
      ( ~ disjoint(singleton(A),B)
      | ~ in(A,B) ),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [A,B] :
      ( ~ disjoint(A,B)
      | disjoint(B,A) ),
    inference(canonicalize,[],[symmetry_r1_xboole_0]) ).

fof(normalize_0_3,plain,
    ! [A,B] :
      ( ~ disjoint(A,B)
      | disjoint(B,A) ),
    inference(specialize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [A,B] :
      ( set_difference(A,B) != A
    <=> ~ disjoint(A,B) ),
    inference(canonicalize,[],[t83_xboole_1]) ).

fof(normalize_0_5,plain,
    ! [A,B] :
      ( set_difference(A,B) != A
    <=> ~ disjoint(A,B) ),
    inference(specialize,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    ! [A,B] :
      ( ( set_difference(A,B) != A
        | disjoint(A,B) )
      & ( ~ disjoint(A,B)
        | set_difference(A,B) = A ) ),
    inference(clausify,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ! [A,B] :
      ( set_difference(A,B) != A
      | disjoint(A,B) ),
    inference(conjunct,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ? [A,B] :
      ( set_difference(A,singleton(B)) = A
      & in(B,A) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_9,plain,
    ( set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) = skolemFOFtoCNF_A_2
    & in(skolemFOFtoCNF_B,skolemFOFtoCNF_A_2) ),
    inference(skolemize,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) = skolemFOFtoCNF_A_2,
    inference(conjunct,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    in(skolemFOFtoCNF_B,skolemFOFtoCNF_A_2),
    inference(conjunct,[],[normalize_0_9]) ).

cnf(refute_0_0,plain,
    ( ~ disjoint(singleton(A),B)
    | ~ in(A,B) ),
    inference(canonicalize,[],[normalize_0_1]) ).

cnf(refute_0_1,plain,
    ( ~ disjoint(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_A_2)
    | ~ in(skolemFOFtoCNF_B,skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_0:[bind(A,$fot(skolemFOFtoCNF_B)),bind(B,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_2,plain,
    ( ~ disjoint(A,B)
    | disjoint(B,A) ),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_3,plain,
    ( ~ disjoint(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B))
    | disjoint(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_2:[bind(A,$fot(skolemFOFtoCNF_A_2)),bind(B,$fot(singleton(skolemFOFtoCNF_B)))]]) ).

cnf(refute_0_4,plain,
    ( set_difference(A,B) != A
    | disjoint(A,B) ),
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_5,plain,
    ( set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) != skolemFOFtoCNF_A_2
    | disjoint(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) ),
    inference(subst,[],[refute_0_4:[bind(A,$fot(skolemFOFtoCNF_A_2)),bind(B,$fot(singleton(skolemFOFtoCNF_B)))]]) ).

cnf(refute_0_6,plain,
    set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) = skolemFOFtoCNF_A_2,
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_7,plain,
    ( set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) != skolemFOFtoCNF_A_2
    | skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) = skolemFOFtoCNF_A_2 ),
    introduced(tautology,[equality,[$cnf( ~ $equal(set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)),skolemFOFtoCNF_A_2) ),[0],$fot(skolemFOFtoCNF_A_2)]]) ).

cnf(refute_0_8,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) = skolemFOFtoCNF_A_2 ),
    inference(resolve,[$cnf( $equal(set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)),skolemFOFtoCNF_A_2) )],[refute_0_6,refute_0_7]) ).

cnf(refute_0_9,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_A_2
    | disjoint(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) ),
    inference(resolve,[$cnf( $equal(set_difference(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)),skolemFOFtoCNF_A_2) )],[refute_0_8,refute_0_5]) ).

cnf(refute_0_10,plain,
    skolemFOFtoCNF_A_2 = skolemFOFtoCNF_A_2,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_A_2)]]) ).

cnf(refute_0_11,plain,
    disjoint(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,skolemFOFtoCNF_A_2) )],[refute_0_10,refute_0_9]) ).

cnf(refute_0_12,plain,
    disjoint(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( disjoint(skolemFOFtoCNF_A_2,singleton(skolemFOFtoCNF_B)) )],[refute_0_11,refute_0_3]) ).

cnf(refute_0_13,plain,
    ~ in(skolemFOFtoCNF_B,skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( disjoint(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_A_2) )],[refute_0_12,refute_0_1]) ).

cnf(refute_0_14,plain,
    in(skolemFOFtoCNF_B,skolemFOFtoCNF_A_2),
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_15,plain,
    $false,
    inference(resolve,[$cnf( in(skolemFOFtoCNF_B,skolemFOFtoCNF_A_2) )],[refute_0_14,refute_0_13]) ).

fof(negate_1_0,plain,
    ~ ! [A,B] :
        ( ~ in(B,A)
       => set_difference(A,singleton(B)) = A ),
    inference(negate,[],[subgoal_1]) ).

fof(normalize_1_0,plain,
    ? [A,B] :
      ( set_difference(A,singleton(B)) != A
      & ~ in(B,A) ),
    inference(canonicalize,[],[negate_1_0]) ).

fof(normalize_1_1,plain,
    ( set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)) != skolemFOFtoCNF_A_3
    & ~ in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3) ),
    inference(skolemize,[],[normalize_1_0]) ).

fof(normalize_1_2,plain,
    set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)) != skolemFOFtoCNF_A_3,
    inference(conjunct,[],[normalize_1_1]) ).

fof(normalize_1_3,plain,
    ! [A,B] :
      ( ~ disjoint(A,B)
      | disjoint(B,A) ),
    inference(canonicalize,[],[symmetry_r1_xboole_0]) ).

fof(normalize_1_4,plain,
    ! [A,B] :
      ( ~ disjoint(A,B)
      | disjoint(B,A) ),
    inference(specialize,[],[normalize_1_3]) ).

fof(normalize_1_5,plain,
    ! [A,B] :
      ( disjoint(singleton(A),B)
      | in(A,B) ),
    inference(canonicalize,[],[l28_zfmisc_1]) ).

fof(normalize_1_6,plain,
    ! [A,B] :
      ( disjoint(singleton(A),B)
      | in(A,B) ),
    inference(specialize,[],[normalize_1_5]) ).

fof(normalize_1_7,plain,
    ! [A,B] :
      ( set_difference(A,B) != A
    <=> ~ disjoint(A,B) ),
    inference(canonicalize,[],[t83_xboole_1]) ).

fof(normalize_1_8,plain,
    ! [A,B] :
      ( set_difference(A,B) != A
    <=> ~ disjoint(A,B) ),
    inference(specialize,[],[normalize_1_7]) ).

fof(normalize_1_9,plain,
    ! [A,B] :
      ( ( set_difference(A,B) != A
        | disjoint(A,B) )
      & ( ~ disjoint(A,B)
        | set_difference(A,B) = A ) ),
    inference(clausify,[],[normalize_1_8]) ).

fof(normalize_1_10,plain,
    ! [A,B] :
      ( ~ disjoint(A,B)
      | set_difference(A,B) = A ),
    inference(conjunct,[],[normalize_1_9]) ).

fof(normalize_1_11,plain,
    ~ in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3),
    inference(conjunct,[],[normalize_1_1]) ).

cnf(refute_1_0,plain,
    set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)) != skolemFOFtoCNF_A_3,
    inference(canonicalize,[],[normalize_1_2]) ).

cnf(refute_1_1,plain,
    ( ~ disjoint(A,B)
    | disjoint(B,A) ),
    inference(canonicalize,[],[normalize_1_4]) ).

cnf(refute_1_2,plain,
    ( ~ disjoint(singleton(X_20),X_21)
    | disjoint(X_21,singleton(X_20)) ),
    inference(subst,[],[refute_1_1:[bind(A,$fot(singleton(X_20))),bind(B,$fot(X_21))]]) ).

cnf(refute_1_3,plain,
    ( disjoint(singleton(A),B)
    | in(A,B) ),
    inference(canonicalize,[],[normalize_1_6]) ).

cnf(refute_1_4,plain,
    ( disjoint(singleton(X_20),X_21)
    | in(X_20,X_21) ),
    inference(subst,[],[refute_1_3:[bind(A,$fot(X_20)),bind(B,$fot(X_21))]]) ).

cnf(refute_1_5,plain,
    ( disjoint(X_21,singleton(X_20))
    | in(X_20,X_21) ),
    inference(resolve,[$cnf( disjoint(singleton(X_20),X_21) )],[refute_1_4,refute_1_2]) ).

cnf(refute_1_6,plain,
    ( disjoint(X_26,singleton(X_20))
    | in(X_20,X_26) ),
    inference(subst,[],[refute_1_5:[bind(X_21,$fot(X_26))]]) ).

cnf(refute_1_7,plain,
    ( ~ disjoint(A,B)
    | set_difference(A,B) = A ),
    inference(canonicalize,[],[normalize_1_10]) ).

cnf(refute_1_8,plain,
    ( ~ disjoint(X_26,singleton(X_20))
    | set_difference(X_26,singleton(X_20)) = X_26 ),
    inference(subst,[],[refute_1_7:[bind(A,$fot(X_26)),bind(B,$fot(singleton(X_20)))]]) ).

cnf(refute_1_9,plain,
    ( set_difference(X_26,singleton(X_20)) = X_26
    | in(X_20,X_26) ),
    inference(resolve,[$cnf( disjoint(X_26,singleton(X_20)) )],[refute_1_6,refute_1_8]) ).

cnf(refute_1_10,plain,
    ( set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)) = skolemFOFtoCNF_A_3
    | in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3) ),
    inference(subst,[],[refute_1_9:[bind(X_20,$fot(skolemFOFtoCNF_B_1)),bind(X_26,$fot(skolemFOFtoCNF_A_3))]]) ).

cnf(refute_1_11,plain,
    ( set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)) != skolemFOFtoCNF_A_3
    | skolemFOFtoCNF_A_3 != skolemFOFtoCNF_A_3
    | set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)) = skolemFOFtoCNF_A_3 ),
    introduced(tautology,[equality,[$cnf( ~ $equal(set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)),skolemFOFtoCNF_A_3) ),[0],$fot(skolemFOFtoCNF_A_3)]]) ).

cnf(refute_1_12,plain,
    ( skolemFOFtoCNF_A_3 != skolemFOFtoCNF_A_3
    | set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)) = skolemFOFtoCNF_A_3
    | in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3) ),
    inference(resolve,[$cnf( $equal(set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)),skolemFOFtoCNF_A_3) )],[refute_1_10,refute_1_11]) ).

cnf(refute_1_13,plain,
    ( skolemFOFtoCNF_A_3 != skolemFOFtoCNF_A_3
    | in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3) ),
    inference(resolve,[$cnf( $equal(set_difference(skolemFOFtoCNF_A_3,singleton(skolemFOFtoCNF_B_1)),skolemFOFtoCNF_A_3) )],[refute_1_12,refute_1_0]) ).

cnf(refute_1_14,plain,
    skolemFOFtoCNF_A_3 = skolemFOFtoCNF_A_3,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_A_3)]]) ).

cnf(refute_1_15,plain,
    in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_3,skolemFOFtoCNF_A_3) )],[refute_1_14,refute_1_13]) ).

cnf(refute_1_16,plain,
    ~ in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3),
    inference(canonicalize,[],[normalize_1_11]) ).

cnf(refute_1_17,plain,
    $false,
    inference(resolve,[$cnf( in(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_3) )],[refute_1_15,refute_1_16]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem  : SEU162+3 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.35  % Computer : n013.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Sun Jun 19 15:00:44 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.13/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.13/0.36  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.36  
% 0.13/0.36  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.19/0.36  
%------------------------------------------------------------------------------