TSTP Solution File: SEU126+2 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SEU126+2 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n018.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 12:38:33 EDT 2022

% Result   : Theorem 0.94s 1.16s
% Output   : CNFRefutation 0.94s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   55 (  27 unt;   0 def)
%            Number of atoms       :  102 (  37 equ)
%            Maximal formula atoms :    7 (   1 avg)
%            Number of connectives :   91 (  44   ~;  34   |;   6   &)
%                                         (   3 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   70 (   3 sgn  41   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(commutativity_k2_xboole_0,axiom,
    ! [A,B] : set_union2(A,B) = set_union2(B,A) ).

fof(d10_xboole_0,axiom,
    ! [A,B] :
      ( A = B
    <=> ( subset(A,B)
        & subset(B,A) ) ) ).

fof(reflexivity_r1_tarski,axiom,
    ! [A,B] : subset(A,A) ).

fof(t12_xboole_1,conjecture,
    ! [A,B] :
      ( subset(A,B)
     => set_union2(A,B) = B ) ).

fof(t7_xboole_1,lemma,
    ! [A,B] : subset(A,set_union2(A,B)) ).

fof(t8_xboole_1,lemma,
    ! [A,B,C] :
      ( ( subset(A,B)
        & subset(C,B) )
     => subset(set_union2(A,C),B) ) ).

fof(subgoal_0,plain,
    ! [A,B] :
      ( subset(A,B)
     => set_union2(A,B) = B ),
    inference(strip,[],[t12_xboole_1]) ).

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

fof(normalize_0_0,plain,
    ! [A,B] :
      ( A != B
    <=> ( ~ subset(A,B)
        | ~ subset(B,A) ) ),
    inference(canonicalize,[],[d10_xboole_0]) ).

fof(normalize_0_1,plain,
    ! [A,B] :
      ( A != B
    <=> ( ~ subset(A,B)
        | ~ subset(B,A) ) ),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [A,B] :
      ( ( A != B
        | subset(A,B) )
      & ( A != B
        | subset(B,A) )
      & ( ~ subset(A,B)
        | ~ subset(B,A)
        | A = B ) ),
    inference(clausify,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [A,B] :
      ( ~ subset(A,B)
      | ~ subset(B,A)
      | A = B ),
    inference(conjunct,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [A] : subset(A,A),
    inference(canonicalize,[],[reflexivity_r1_tarski]) ).

fof(normalize_0_5,plain,
    ! [A] : subset(A,A),
    inference(specialize,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    ? [A,B] :
      ( set_union2(A,B) != B
      & subset(A,B) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_7,plain,
    ( set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) != skolemFOFtoCNF_B_1
    & subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) ),
    inference(skolemize,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [A,B,C] :
      ( ~ subset(A,B)
      | ~ subset(C,B)
      | subset(set_union2(A,C),B) ),
    inference(canonicalize,[],[t8_xboole_1]) ).

fof(normalize_0_10,plain,
    ! [A,B,C] :
      ( ~ subset(A,B)
      | ~ subset(C,B)
      | subset(set_union2(A,C),B) ),
    inference(specialize,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    ! [A,B] : set_union2(A,B) = set_union2(B,A),
    inference(canonicalize,[],[commutativity_k2_xboole_0]) ).

fof(normalize_0_12,plain,
    ! [A,B] : set_union2(A,B) = set_union2(B,A),
    inference(specialize,[],[normalize_0_11]) ).

fof(normalize_0_13,plain,
    ! [A,B] : subset(A,set_union2(A,B)),
    inference(canonicalize,[],[t7_xboole_1]) ).

fof(normalize_0_14,plain,
    ! [A,B] : subset(A,set_union2(A,B)),
    inference(specialize,[],[normalize_0_13]) ).

fof(normalize_0_15,plain,
    set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) != skolemFOFtoCNF_B_1,
    inference(conjunct,[],[normalize_0_7]) ).

cnf(refute_0_0,plain,
    ( ~ subset(A,B)
    | ~ subset(B,A)
    | A = B ),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_1,plain,
    ( ~ subset(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),skolemFOFtoCNF_B_1)
    | ~ subset(skolemFOFtoCNF_B_1,set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1))
    | skolemFOFtoCNF_B_1 = set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) ),
    inference(subst,[],[refute_0_0:[bind(A,$fot(skolemFOFtoCNF_B_1)),bind(B,$fot(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)))]]) ).

cnf(refute_0_2,plain,
    subset(A,A),
    inference(canonicalize,[],[normalize_0_5]) ).

cnf(refute_0_3,plain,
    subset(skolemFOFtoCNF_B_1,skolemFOFtoCNF_B_1),
    inference(subst,[],[refute_0_2:[bind(A,$fot(skolemFOFtoCNF_B_1))]]) ).

cnf(refute_0_4,plain,
    subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_5,plain,
    ( ~ subset(A,B)
    | ~ subset(C,B)
    | subset(set_union2(A,C),B) ),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_6,plain,
    ( ~ subset(X_1014,skolemFOFtoCNF_B_1)
    | ~ subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)
    | subset(set_union2(X_1014,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1) ),
    inference(subst,[],[refute_0_5:[bind(A,$fot(X_1014)),bind(B,$fot(skolemFOFtoCNF_B_1)),bind(C,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_7,plain,
    ( ~ subset(X_1014,skolemFOFtoCNF_B_1)
    | subset(set_union2(X_1014,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1) ),
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) )],[refute_0_4,refute_0_6]) ).

cnf(refute_0_8,plain,
    ( ~ subset(skolemFOFtoCNF_B_1,skolemFOFtoCNF_B_1)
    | subset(set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1) ),
    inference(subst,[],[refute_0_7:[bind(X_1014,$fot(skolemFOFtoCNF_B_1))]]) ).

cnf(refute_0_9,plain,
    subset(set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1),
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_B_1,skolemFOFtoCNF_B_1) )],[refute_0_3,refute_0_8]) ).

cnf(refute_0_10,plain,
    set_union2(A,B) = set_union2(B,A),
    inference(canonicalize,[],[normalize_0_12]) ).

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,
    ( set_union2(A,B) != set_union2(B,A)
    | set_union2(B,A) = set_union2(A,B) ),
    inference(subst,[],[refute_0_13:[bind(X,$fot(set_union2(A,B))),bind(Y,$fot(set_union2(B,A)))]]) ).

cnf(refute_0_15,plain,
    set_union2(B,A) = set_union2(A,B),
    inference(resolve,[$cnf( $equal(set_union2(A,B),set_union2(B,A)) )],[refute_0_10,refute_0_14]) ).

cnf(refute_0_16,plain,
    set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2) = set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),
    inference(subst,[],[refute_0_15:[bind(A,$fot(skolemFOFtoCNF_A_2)),bind(B,$fot(skolemFOFtoCNF_B_1))]]) ).

cnf(refute_0_17,plain,
    ( set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2) != set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)
    | ~ subset(set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1)
    | subset(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),skolemFOFtoCNF_B_1) ),
    introduced(tautology,[equality,[$cnf( subset(set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1) ),[0],$fot(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1))]]) ).

cnf(refute_0_18,plain,
    ( ~ subset(set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1)
    | subset(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),skolemFOFtoCNF_B_1) ),
    inference(resolve,[$cnf( $equal(set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2),set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)) )],[refute_0_16,refute_0_17]) ).

cnf(refute_0_19,plain,
    subset(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),skolemFOFtoCNF_B_1),
    inference(resolve,[$cnf( subset(set_union2(skolemFOFtoCNF_B_1,skolemFOFtoCNF_A_2),skolemFOFtoCNF_B_1) )],[refute_0_9,refute_0_18]) ).

cnf(refute_0_20,plain,
    ( ~ subset(skolemFOFtoCNF_B_1,set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1))
    | skolemFOFtoCNF_B_1 = set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) ),
    inference(resolve,[$cnf( subset(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),skolemFOFtoCNF_B_1) )],[refute_0_19,refute_0_1]) ).

cnf(refute_0_21,plain,
    subset(A,set_union2(A,B)),
    inference(canonicalize,[],[normalize_0_14]) ).

cnf(refute_0_22,plain,
    ( set_union2(A,B) != set_union2(B,A)
    | ~ subset(A,set_union2(A,B))
    | subset(A,set_union2(B,A)) ),
    introduced(tautology,[equality,[$cnf( subset(A,set_union2(A,B)) ),[1],$fot(set_union2(B,A))]]) ).

cnf(refute_0_23,plain,
    ( ~ subset(A,set_union2(A,B))
    | subset(A,set_union2(B,A)) ),
    inference(resolve,[$cnf( $equal(set_union2(A,B),set_union2(B,A)) )],[refute_0_10,refute_0_22]) ).

cnf(refute_0_24,plain,
    subset(A,set_union2(B,A)),
    inference(resolve,[$cnf( subset(A,set_union2(A,B)) )],[refute_0_21,refute_0_23]) ).

cnf(refute_0_25,plain,
    subset(skolemFOFtoCNF_B_1,set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)),
    inference(subst,[],[refute_0_24:[bind(A,$fot(skolemFOFtoCNF_B_1)),bind(B,$fot(skolemFOFtoCNF_A_2))]]) ).

cnf(refute_0_26,plain,
    skolemFOFtoCNF_B_1 = set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_B_1,set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)) )],[refute_0_25,refute_0_20]) ).

cnf(refute_0_27,plain,
    set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) != skolemFOFtoCNF_B_1,
    inference(canonicalize,[],[normalize_0_15]) ).

cnf(refute_0_28,plain,
    ( skolemFOFtoCNF_B_1 != set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)
    | set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1) = skolemFOFtoCNF_B_1 ),
    inference(subst,[],[refute_0_13:[bind(X,$fot(skolemFOFtoCNF_B_1)),bind(Y,$fot(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)))]]) ).

cnf(refute_0_29,plain,
    skolemFOFtoCNF_B_1 != set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),
    inference(resolve,[$cnf( $equal(set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1),skolemFOFtoCNF_B_1) )],[refute_0_28,refute_0_27]) ).

cnf(refute_0_30,plain,
    $false,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B_1,set_union2(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B_1)) )],[refute_0_26,refute_0_29]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SEU126+2 : TPTP v8.1.0. Released v3.3.0.
% 0.07/0.13  % Command  : metis --show proof --show saturation %s
% 0.14/0.34  % Computer : n018.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 600
% 0.14/0.34  % DateTime : Mon Jun 20 10:32:20 EDT 2022
% 0.14/0.34  % CPUTime  : 
% 0.14/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.94/1.16  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.94/1.16  
% 0.94/1.16  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 0.94/1.17  
%------------------------------------------------------------------------------