TSTP Solution File: SEU267+2 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SEU267+2 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n023.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 12:39:50 EDT 2022

% Result   : Theorem 0.84s 1.04s
% Output   : CNFRefutation 0.84s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :   13
% Syntax   : Number of formulae    :   52 (  23 unt;   0 def)
%            Number of atoms       :  125 ( 123 equ)
%            Maximal formula atoms :   10 (   2 avg)
%            Number of connectives :  140 (  67   ~;  50   |;  11   &)
%                                         (   6 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    3 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :   11 (  11 usr;   4 con; 0-2 aty)
%            Number of variables   :  130 (  14 sgn  58   !;  16   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(d1_mcart_1,axiom,
    ! [A] :
      ( ? [B,C] : A = ordered_pair(B,C)
     => ! [B] :
          ( B = pair_first(A)
        <=> ! [C,D] :
              ( A = ordered_pair(C,D)
             => B = C ) ) ) ).

fof(d2_mcart_1,axiom,
    ! [A] :
      ( ? [B,C] : A = ordered_pair(B,C)
     => ! [B] :
          ( B = pair_second(A)
        <=> ! [C,D] :
              ( A = ordered_pair(C,D)
             => B = D ) ) ) ).

fof(t7_mcart_1,conjecture,
    ! [A,B] :
      ( pair_first(ordered_pair(A,B)) = A
      & pair_second(ordered_pair(A,B)) = B ) ).

fof(subgoal_0,plain,
    ! [A,B] : pair_first(ordered_pair(A,B)) = A,
    inference(strip,[],[t7_mcart_1]) ).

fof(subgoal_1,plain,
    ! [A,B] :
      ( pair_first(ordered_pair(A,B)) = A
     => pair_second(ordered_pair(A,B)) = B ),
    inference(strip,[],[t7_mcart_1]) ).

fof(negate_0_0,plain,
    ~ ! [A,B] : pair_first(ordered_pair(A,B)) = A,
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [A,B] : pair_first(ordered_pair(A,B)) != A,
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)) != skolemFOFtoCNF_A_12,
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [A] :
      ( ! [B] :
          ( B != pair_first(A)
        <=> ? [C] :
              ( B != C
              & ? [D] : A = ordered_pair(C,D) ) )
      | ! [B,C] : A != ordered_pair(B,C) ),
    inference(canonicalize,[],[d1_mcart_1]) ).

fof(normalize_0_3,plain,
    ! [A] :
      ( ! [B] :
          ( B != pair_first(A)
        <=> ? [C] :
              ( B != C
              & ? [D] : A = ordered_pair(C,D) ) )
      | ! [B,C] : A != ordered_pair(B,C) ),
    inference(specialize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [A,B,B0,C,C0,D] :
      ( ( A != ordered_pair(B0,C0)
        | B != skolemFOFtoCNF_C_1(A,B)
        | B = pair_first(A) )
      & ( A != ordered_pair(B0,C0)
        | A = ordered_pair(skolemFOFtoCNF_C_1(A,B),skolemFOFtoCNF_D_7(A,B))
        | B = pair_first(A) )
      & ( A != ordered_pair(B0,C0)
        | A != ordered_pair(C,D)
        | B != pair_first(A)
        | B = C ) ),
    inference(clausify,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ! [A,B,B0,C,C0,D] :
      ( A != ordered_pair(B0,C0)
      | A != ordered_pair(C,D)
      | B != pair_first(A)
      | B = C ),
    inference(conjunct,[],[normalize_0_4]) ).

cnf(refute_0_0,plain,
    pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)) != skolemFOFtoCNF_A_12,
    inference(canonicalize,[],[normalize_0_1]) ).

cnf(refute_0_1,plain,
    ( A != ordered_pair(B0,C0)
    | A != ordered_pair(C,D)
    | B != pair_first(A)
    | B = C ),
    inference(canonicalize,[],[normalize_0_5]) ).

cnf(refute_0_2,plain,
    ( ordered_pair(B0,C0) != ordered_pair(B0,C0)
    | ordered_pair(B0,C0) != ordered_pair(C,D)
    | pair_first(ordered_pair(B0,C0)) != pair_first(ordered_pair(B0,C0))
    | pair_first(ordered_pair(B0,C0)) = C ),
    inference(subst,[],[refute_0_1:[bind(A,$fot(ordered_pair(B0,C0))),bind(B,$fot(pair_first(ordered_pair(B0,C0))))]]) ).

cnf(refute_0_3,plain,
    ordered_pair(B0,C0) = ordered_pair(B0,C0),
    introduced(tautology,[refl,[$fot(ordered_pair(B0,C0))]]) ).

cnf(refute_0_4,plain,
    ( ordered_pair(B0,C0) != ordered_pair(C,D)
    | pair_first(ordered_pair(B0,C0)) != pair_first(ordered_pair(B0,C0))
    | pair_first(ordered_pair(B0,C0)) = C ),
    inference(resolve,[$cnf( $equal(ordered_pair(B0,C0),ordered_pair(B0,C0)) )],[refute_0_3,refute_0_2]) ).

cnf(refute_0_5,plain,
    pair_first(ordered_pair(B0,C0)) = pair_first(ordered_pair(B0,C0)),
    introduced(tautology,[refl,[$fot(pair_first(ordered_pair(B0,C0)))]]) ).

cnf(refute_0_6,plain,
    ( ordered_pair(B0,C0) != ordered_pair(C,D)
    | pair_first(ordered_pair(B0,C0)) = C ),
    inference(resolve,[$cnf( $equal(pair_first(ordered_pair(B0,C0)),pair_first(ordered_pair(B0,C0))) )],[refute_0_5,refute_0_4]) ).

cnf(refute_0_7,plain,
    ( ordered_pair(C,D) != ordered_pair(C,D)
    | pair_first(ordered_pair(C,D)) = C ),
    inference(subst,[],[refute_0_6:[bind(B0,$fot(C)),bind(C0,$fot(D))]]) ).

cnf(refute_0_8,plain,
    ordered_pair(C,D) = ordered_pair(C,D),
    introduced(tautology,[refl,[$fot(ordered_pair(C,D))]]) ).

cnf(refute_0_9,plain,
    pair_first(ordered_pair(C,D)) = C,
    inference(resolve,[$cnf( $equal(ordered_pair(C,D),ordered_pair(C,D)) )],[refute_0_8,refute_0_7]) ).

cnf(refute_0_10,plain,
    pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)) = skolemFOFtoCNF_A_12,
    inference(subst,[],[refute_0_9:[bind(C,$fot(skolemFOFtoCNF_A_12)),bind(D,$fot(skolemFOFtoCNF_B_19))]]) ).

cnf(refute_0_11,plain,
    ( pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)) != skolemFOFtoCNF_A_12
    | skolemFOFtoCNF_A_12 != skolemFOFtoCNF_A_12
    | pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)) = skolemFOFtoCNF_A_12 ),
    introduced(tautology,[equality,[$cnf( ~ $equal(pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)),skolemFOFtoCNF_A_12) ),[0],$fot(skolemFOFtoCNF_A_12)]]) ).

cnf(refute_0_12,plain,
    ( skolemFOFtoCNF_A_12 != skolemFOFtoCNF_A_12
    | pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)) = skolemFOFtoCNF_A_12 ),
    inference(resolve,[$cnf( $equal(pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)),skolemFOFtoCNF_A_12) )],[refute_0_10,refute_0_11]) ).

cnf(refute_0_13,plain,
    skolemFOFtoCNF_A_12 != skolemFOFtoCNF_A_12,
    inference(resolve,[$cnf( $equal(pair_first(ordered_pair(skolemFOFtoCNF_A_12,skolemFOFtoCNF_B_19)),skolemFOFtoCNF_A_12) )],[refute_0_12,refute_0_0]) ).

cnf(refute_0_14,plain,
    skolemFOFtoCNF_A_12 = skolemFOFtoCNF_A_12,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_A_12)]]) ).

cnf(refute_0_15,plain,
    $false,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_12,skolemFOFtoCNF_A_12) )],[refute_0_14,refute_0_13]) ).

fof(negate_1_0,plain,
    ~ ! [A,B] :
        ( pair_first(ordered_pair(A,B)) = A
       => pair_second(ordered_pair(A,B)) = B ),
    inference(negate,[],[subgoal_1]) ).

fof(normalize_1_0,plain,
    ? [A,B] :
      ( pair_second(ordered_pair(A,B)) != B
      & pair_first(ordered_pair(A,B)) = A ),
    inference(canonicalize,[],[negate_1_0]) ).

fof(normalize_1_1,plain,
    ( pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) != skolemFOFtoCNF_B_20
    & pair_first(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) = skolemFOFtoCNF_A_13 ),
    inference(skolemize,[],[normalize_1_0]) ).

fof(normalize_1_2,plain,
    pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) != skolemFOFtoCNF_B_20,
    inference(conjunct,[],[normalize_1_1]) ).

fof(normalize_1_3,plain,
    ! [A] :
      ( ! [B] :
          ( B != pair_second(A)
        <=> ? [C,D] :
              ( B != D
              & A = ordered_pair(C,D) ) )
      | ! [B,C] : A != ordered_pair(B,C) ),
    inference(canonicalize,[],[d2_mcart_1]) ).

fof(normalize_1_4,plain,
    ! [A] :
      ( ! [B] :
          ( B != pair_second(A)
        <=> ? [C,D] :
              ( B != D
              & A = ordered_pair(C,D) ) )
      | ! [B,C] : A != ordered_pair(B,C) ),
    inference(specialize,[],[normalize_1_3]) ).

fof(normalize_1_5,plain,
    ! [A,B,B0,C,C0,D] :
      ( ( A != ordered_pair(B0,C0)
        | B != skolemFOFtoCNF_D_12(A,B)
        | B = pair_second(A) )
      & ( A != ordered_pair(B0,C0)
        | A = ordered_pair(skolemFOFtoCNF_C_7(A,B),skolemFOFtoCNF_D_12(A,B))
        | B = pair_second(A) )
      & ( A != ordered_pair(B0,C0)
        | A != ordered_pair(C,D)
        | B != pair_second(A)
        | B = D ) ),
    inference(clausify,[],[normalize_1_4]) ).

fof(normalize_1_6,plain,
    ! [A,B,B0,C,C0,D] :
      ( A != ordered_pair(B0,C0)
      | A != ordered_pair(C,D)
      | B != pair_second(A)
      | B = D ),
    inference(conjunct,[],[normalize_1_5]) ).

cnf(refute_1_0,plain,
    pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) != skolemFOFtoCNF_B_20,
    inference(canonicalize,[],[normalize_1_2]) ).

cnf(refute_1_1,plain,
    ( A != ordered_pair(B0,C0)
    | A != ordered_pair(C,D)
    | B != pair_second(A)
    | B = D ),
    inference(canonicalize,[],[normalize_1_6]) ).

cnf(refute_1_2,plain,
    ( ordered_pair(B0,C0) != ordered_pair(B0,C0)
    | ordered_pair(B0,C0) != ordered_pair(C,D)
    | pair_second(ordered_pair(B0,C0)) != pair_second(ordered_pair(B0,C0))
    | pair_second(ordered_pair(B0,C0)) = D ),
    inference(subst,[],[refute_1_1:[bind(A,$fot(ordered_pair(B0,C0))),bind(B,$fot(pair_second(ordered_pair(B0,C0))))]]) ).

cnf(refute_1_3,plain,
    ordered_pair(B0,C0) = ordered_pair(B0,C0),
    introduced(tautology,[refl,[$fot(ordered_pair(B0,C0))]]) ).

cnf(refute_1_4,plain,
    ( ordered_pair(B0,C0) != ordered_pair(C,D)
    | pair_second(ordered_pair(B0,C0)) != pair_second(ordered_pair(B0,C0))
    | pair_second(ordered_pair(B0,C0)) = D ),
    inference(resolve,[$cnf( $equal(ordered_pair(B0,C0),ordered_pair(B0,C0)) )],[refute_1_3,refute_1_2]) ).

cnf(refute_1_5,plain,
    pair_second(ordered_pair(B0,C0)) = pair_second(ordered_pair(B0,C0)),
    introduced(tautology,[refl,[$fot(pair_second(ordered_pair(B0,C0)))]]) ).

cnf(refute_1_6,plain,
    ( ordered_pair(B0,C0) != ordered_pair(C,D)
    | pair_second(ordered_pair(B0,C0)) = D ),
    inference(resolve,[$cnf( $equal(pair_second(ordered_pair(B0,C0)),pair_second(ordered_pair(B0,C0))) )],[refute_1_5,refute_1_4]) ).

cnf(refute_1_7,plain,
    ( ordered_pair(C,D) != ordered_pair(C,D)
    | pair_second(ordered_pair(C,D)) = D ),
    inference(subst,[],[refute_1_6:[bind(B0,$fot(C)),bind(C0,$fot(D))]]) ).

cnf(refute_1_8,plain,
    ordered_pair(C,D) = ordered_pair(C,D),
    introduced(tautology,[refl,[$fot(ordered_pair(C,D))]]) ).

cnf(refute_1_9,plain,
    pair_second(ordered_pair(C,D)) = D,
    inference(resolve,[$cnf( $equal(ordered_pair(C,D),ordered_pair(C,D)) )],[refute_1_8,refute_1_7]) ).

cnf(refute_1_10,plain,
    pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) = skolemFOFtoCNF_B_20,
    inference(subst,[],[refute_1_9:[bind(C,$fot(skolemFOFtoCNF_A_13)),bind(D,$fot(skolemFOFtoCNF_B_20))]]) ).

cnf(refute_1_11,plain,
    ( pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) != skolemFOFtoCNF_B_20
    | skolemFOFtoCNF_B_20 != skolemFOFtoCNF_B_20
    | pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) = skolemFOFtoCNF_B_20 ),
    introduced(tautology,[equality,[$cnf( ~ $equal(pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)),skolemFOFtoCNF_B_20) ),[0],$fot(skolemFOFtoCNF_B_20)]]) ).

cnf(refute_1_12,plain,
    ( skolemFOFtoCNF_B_20 != skolemFOFtoCNF_B_20
    | pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)) = skolemFOFtoCNF_B_20 ),
    inference(resolve,[$cnf( $equal(pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)),skolemFOFtoCNF_B_20) )],[refute_1_10,refute_1_11]) ).

cnf(refute_1_13,plain,
    skolemFOFtoCNF_B_20 != skolemFOFtoCNF_B_20,
    inference(resolve,[$cnf( $equal(pair_second(ordered_pair(skolemFOFtoCNF_A_13,skolemFOFtoCNF_B_20)),skolemFOFtoCNF_B_20) )],[refute_1_12,refute_1_0]) ).

cnf(refute_1_14,plain,
    skolemFOFtoCNF_B_20 = skolemFOFtoCNF_B_20,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_B_20)]]) ).

cnf(refute_1_15,plain,
    $false,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_B_20,skolemFOFtoCNF_B_20) )],[refute_1_14,refute_1_13]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.11  % Problem  : SEU267+2 : TPTP v8.1.0. Released v3.3.0.
% 0.10/0.12  % Command  : metis --show proof --show saturation %s
% 0.12/0.33  % Computer : n023.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 : Sun Jun 19 22:15:33 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.84/1.04  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.84/1.04  
% 0.84/1.04  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.84/1.04  
%------------------------------------------------------------------------------