TSTP Solution File: SET903+1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET903+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n020.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 03:38:13 EDT 2022

% Result   : Theorem 0.13s 0.35s
% Output   : CNFRefutation 0.13s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   11
% Syntax   : Number of formulae    :   57 (  21 unt;   0 def)
%            Number of atoms       :  156 ( 155 equ)
%            Maximal formula atoms :   25 (   2 avg)
%            Number of connectives :  170 (  71   ~;  66   |;  31   &)
%                                         (   0 <=>;   2  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :   54 (   5 sgn  27   !;   3   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(t43_zfmisc_1,axiom,
    ! [A,B,C] :
      ~ ( singleton(A) = set_union2(B,C)
        & ~ ( B = singleton(A)
            & C = singleton(A) )
        & ~ ( B = empty_set
            & C = singleton(A) )
        & ~ ( B = singleton(A)
            & C = empty_set ) ) ).

fof(t44_zfmisc_1,conjecture,
    ! [A,B,C] :
      ~ ( singleton(A) = set_union2(B,C)
        & B != C
        & B != empty_set
        & C != empty_set ) ).

fof(subgoal_0,plain,
    ! [A,B,C] :
      ( ( singleton(A) = set_union2(B,C)
        & B != C
        & B != empty_set )
     => C = empty_set ),
    inference(strip,[],[t44_zfmisc_1]) ).

fof(negate_0_0,plain,
    ~ ! [A,B,C] :
        ( ( singleton(A) = set_union2(B,C)
          & B != C
          & B != empty_set )
       => C = empty_set ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ! [A,B,C] :
      ( singleton(A) != set_union2(B,C)
      | ( B = empty_set
        & C = singleton(A) )
      | ( B = singleton(A)
        & C = empty_set )
      | ( B = singleton(A)
        & C = singleton(A) ) ),
    inference(canonicalize,[],[t43_zfmisc_1]) ).

fof(normalize_0_1,plain,
    ! [A,B,C] :
      ( singleton(A) != set_union2(B,C)
      | ( B = empty_set
        & C = singleton(A) )
      | ( B = singleton(A)
        & C = empty_set )
      | ( B = singleton(A)
        & C = singleton(A) ) ),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [A,B,C] :
      ( ( singleton(A) != set_union2(B,C)
        | B = empty_set
        | B = singleton(A) )
      & ( singleton(A) != set_union2(B,C)
        | B = singleton(A)
        | C = singleton(A) )
      & ( singleton(A) != set_union2(B,C)
        | C = empty_set
        | C = singleton(A) )
      & ( singleton(A) != set_union2(B,C)
        | B = empty_set
        | B = singleton(A)
        | C = empty_set )
      & ( singleton(A) != set_union2(B,C)
        | B = empty_set
        | B = singleton(A)
        | C = singleton(A) )
      & ( singleton(A) != set_union2(B,C)
        | B = empty_set
        | C = empty_set
        | C = singleton(A) )
      & ( singleton(A) != set_union2(B,C)
        | B = singleton(A)
        | C = empty_set
        | C = singleton(A) ) ),
    inference(clausify,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [A,B,C] :
      ( singleton(A) != set_union2(B,C)
      | C = empty_set
      | C = singleton(A) ),
    inference(conjunct,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ? [A,B,C] :
      ( B != C
      & B != empty_set
      & C != empty_set
      & singleton(A) = set_union2(B,C) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_5,plain,
    ( skolemFOFtoCNF_B != empty_set
    & skolemFOFtoCNF_B != skolemFOFtoCNF_C
    & skolemFOFtoCNF_C != empty_set
    & singleton(skolemFOFtoCNF_A_2) = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    inference(skolemize,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    singleton(skolemFOFtoCNF_A_2) = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ! [A,B,C] :
      ( singleton(A) != set_union2(B,C)
      | B = empty_set
      | B = singleton(A) ),
    inference(conjunct,[],[normalize_0_2]) ).

fof(normalize_0_8,plain,
    skolemFOFtoCNF_B != empty_set,
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_9,plain,
    skolemFOFtoCNF_C != empty_set,
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_10,plain,
    skolemFOFtoCNF_B != skolemFOFtoCNF_C,
    inference(conjunct,[],[normalize_0_5]) ).

cnf(refute_0_0,plain,
    ( singleton(A) != set_union2(B,C)
    | C = empty_set
    | C = singleton(A) ),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_1,plain,
    ( singleton(X_10) != set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | skolemFOFtoCNF_C = empty_set
    | skolemFOFtoCNF_C = singleton(X_10) ),
    inference(subst,[],[refute_0_0:[bind(A,$fot(X_10)),bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_C))]]) ).

cnf(refute_0_2,plain,
    singleton(skolemFOFtoCNF_A_2) = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_6]) ).

cnf(refute_0_3,plain,
    ( singleton(A) != set_union2(B,C)
    | B = empty_set
    | B = singleton(A) ),
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_4,plain,
    ( singleton(X_7) != set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | skolemFOFtoCNF_B = empty_set
    | skolemFOFtoCNF_B = singleton(X_7) ),
    inference(subst,[],[refute_0_3:[bind(A,$fot(X_7)),bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_C))]]) ).

cnf(refute_0_5,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_0_6,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_0_7,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_0_5,refute_0_6]) ).

cnf(refute_0_8,plain,
    ( singleton(skolemFOFtoCNF_A_2) != set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) = singleton(skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_7:[bind(X,$fot(singleton(skolemFOFtoCNF_A_2))),bind(Y,$fot(set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)))]]) ).

cnf(refute_0_9,plain,
    set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) = singleton(skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_A_2),set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_2,refute_0_8]) ).

cnf(refute_0_10,plain,
    ( set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) != singleton(skolemFOFtoCNF_A_2)
    | singleton(X_7) != singleton(skolemFOFtoCNF_A_2)
    | singleton(X_7) = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    introduced(tautology,[equality,[$cnf( ~ $equal(singleton(X_7),set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),[1],$fot(singleton(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_11,plain,
    ( singleton(X_7) != singleton(skolemFOFtoCNF_A_2)
    | singleton(X_7) = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),singleton(skolemFOFtoCNF_A_2)) )],[refute_0_9,refute_0_10]) ).

cnf(refute_0_12,plain,
    ( singleton(X_7) != singleton(skolemFOFtoCNF_A_2)
    | skolemFOFtoCNF_B = empty_set
    | skolemFOFtoCNF_B = singleton(X_7) ),
    inference(resolve,[$cnf( $equal(singleton(X_7),set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_11,refute_0_4]) ).

cnf(refute_0_13,plain,
    skolemFOFtoCNF_B != empty_set,
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_14,plain,
    ( singleton(X_7) != singleton(skolemFOFtoCNF_A_2)
    | skolemFOFtoCNF_B = singleton(X_7) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B,empty_set) )],[refute_0_12,refute_0_13]) ).

cnf(refute_0_15,plain,
    ( singleton(skolemFOFtoCNF_A_2) != singleton(skolemFOFtoCNF_A_2)
    | skolemFOFtoCNF_B = singleton(skolemFOFtoCNF_A_2) ),
    inference(subst,[],[refute_0_14:[bind(X_7,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_16,plain,
    singleton(skolemFOFtoCNF_A_2) = singleton(skolemFOFtoCNF_A_2),
    introduced(tautology,[refl,[$fot(singleton(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_17,plain,
    skolemFOFtoCNF_B = singleton(skolemFOFtoCNF_A_2),
    inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_A_2),singleton(skolemFOFtoCNF_A_2)) )],[refute_0_16,refute_0_15]) ).

cnf(refute_0_18,plain,
    ( skolemFOFtoCNF_B != singleton(skolemFOFtoCNF_A_2)
    | singleton(skolemFOFtoCNF_A_2) = skolemFOFtoCNF_B ),
    inference(subst,[],[refute_0_7:[bind(X,$fot(skolemFOFtoCNF_B)),bind(Y,$fot(singleton(skolemFOFtoCNF_A_2)))]]) ).

cnf(refute_0_19,plain,
    singleton(skolemFOFtoCNF_A_2) = skolemFOFtoCNF_B,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B,singleton(skolemFOFtoCNF_A_2)) )],[refute_0_17,refute_0_18]) ).

cnf(refute_0_20,plain,
    ( singleton(skolemFOFtoCNF_A_2) != set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | singleton(skolemFOFtoCNF_A_2) != skolemFOFtoCNF_B
    | skolemFOFtoCNF_B = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    introduced(tautology,[equality,[$cnf( $equal(singleton(skolemFOFtoCNF_A_2),set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),[0],$fot(skolemFOFtoCNF_B)]]) ).

cnf(refute_0_21,plain,
    ( singleton(skolemFOFtoCNF_A_2) != set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | skolemFOFtoCNF_B = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_B) )],[refute_0_19,refute_0_20]) ).

cnf(refute_0_22,plain,
    skolemFOFtoCNF_B = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_A_2),set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_2,refute_0_21]) ).

cnf(refute_0_23,plain,
    ( skolemFOFtoCNF_B != set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) = skolemFOFtoCNF_B ),
    inference(subst,[],[refute_0_7:[bind(X,$fot(skolemFOFtoCNF_B)),bind(Y,$fot(set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)))]]) ).

cnf(refute_0_24,plain,
    set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) = skolemFOFtoCNF_B,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B,set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_22,refute_0_23]) ).

cnf(refute_0_25,plain,
    ( set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) != skolemFOFtoCNF_B
    | singleton(X_10) != skolemFOFtoCNF_B
    | singleton(X_10) = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    introduced(tautology,[equality,[$cnf( ~ $equal(singleton(X_10),set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) ),[1],$fot(skolemFOFtoCNF_B)]]) ).

cnf(refute_0_26,plain,
    ( singleton(X_10) != skolemFOFtoCNF_B
    | singleton(X_10) = set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C),skolemFOFtoCNF_B) )],[refute_0_24,refute_0_25]) ).

cnf(refute_0_27,plain,
    ( singleton(X_10) != skolemFOFtoCNF_B
    | skolemFOFtoCNF_C = empty_set
    | skolemFOFtoCNF_C = singleton(X_10) ),
    inference(resolve,[$cnf( $equal(singleton(X_10),set_union2(skolemFOFtoCNF_B,skolemFOFtoCNF_C)) )],[refute_0_26,refute_0_1]) ).

cnf(refute_0_28,plain,
    ( singleton(X_10) != skolemFOFtoCNF_B
    | skolemFOFtoCNF_C != singleton(X_10)
    | skolemFOFtoCNF_C = skolemFOFtoCNF_B ),
    introduced(tautology,[equality,[$cnf( $equal(skolemFOFtoCNF_C,singleton(X_10)) ),[1],$fot(skolemFOFtoCNF_B)]]) ).

cnf(refute_0_29,plain,
    ( singleton(X_10) != skolemFOFtoCNF_B
    | skolemFOFtoCNF_C = empty_set
    | skolemFOFtoCNF_C = skolemFOFtoCNF_B ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_C,singleton(X_10)) )],[refute_0_27,refute_0_28]) ).

cnf(refute_0_30,plain,
    skolemFOFtoCNF_C != empty_set,
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_31,plain,
    ( singleton(X_10) != skolemFOFtoCNF_B
    | skolemFOFtoCNF_C = skolemFOFtoCNF_B ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_C,empty_set) )],[refute_0_29,refute_0_30]) ).

cnf(refute_0_32,plain,
    skolemFOFtoCNF_B != skolemFOFtoCNF_C,
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_33,plain,
    ( skolemFOFtoCNF_C != skolemFOFtoCNF_B
    | skolemFOFtoCNF_B = skolemFOFtoCNF_C ),
    inference(subst,[],[refute_0_7:[bind(X,$fot(skolemFOFtoCNF_C)),bind(Y,$fot(skolemFOFtoCNF_B))]]) ).

cnf(refute_0_34,plain,
    skolemFOFtoCNF_C != skolemFOFtoCNF_B,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B,skolemFOFtoCNF_C) )],[refute_0_33,refute_0_32]) ).

cnf(refute_0_35,plain,
    singleton(X_10) != skolemFOFtoCNF_B,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_C,skolemFOFtoCNF_B) )],[refute_0_31,refute_0_34]) ).

cnf(refute_0_36,plain,
    singleton(skolemFOFtoCNF_A_2) != skolemFOFtoCNF_B,
    inference(subst,[],[refute_0_35:[bind(X_10,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_37,plain,
    ( singleton(skolemFOFtoCNF_A_2) != skolemFOFtoCNF_B
    | skolemFOFtoCNF_B != skolemFOFtoCNF_B
    | singleton(skolemFOFtoCNF_A_2) = skolemFOFtoCNF_B ),
    introduced(tautology,[equality,[$cnf( ~ $equal(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_B) ),[0],$fot(skolemFOFtoCNF_B)]]) ).

cnf(refute_0_38,plain,
    ( skolemFOFtoCNF_B != skolemFOFtoCNF_B
    | singleton(skolemFOFtoCNF_A_2) = skolemFOFtoCNF_B ),
    inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_B) )],[refute_0_19,refute_0_37]) ).

cnf(refute_0_39,plain,
    skolemFOFtoCNF_B != skolemFOFtoCNF_B,
    inference(resolve,[$cnf( $equal(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_B) )],[refute_0_38,refute_0_36]) ).

cnf(refute_0_40,plain,
    skolemFOFtoCNF_B = skolemFOFtoCNF_B,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_B)]]) ).

cnf(refute_0_41,plain,
    $false,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B,skolemFOFtoCNF_B) )],[refute_0_40,refute_0_39]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SET903+1 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.12  % Command  : metis --show proof --show saturation %s
% 0.13/0.34  % Computer : n020.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 : Sat Jul  9 17:42:58 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.13/0.35  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.35  
% 0.13/0.35  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.13/0.36  
%------------------------------------------------------------------------------