TSTP Solution File: LCL106-1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : LCL106-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n016.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 : Sun Jul 17 12:49:31 EDT 2022

% Result   : Unsatisfiable 0.13s 0.36s
% Output   : CNFRefutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :    4
% Syntax   : Number of clauses     :   24 (  13 unt;   0 nHn;  10 RR)
%            Number of literals    :   39 (   0 equ;  16 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-1 aty)
%            Number of functors    :    4 (   4 usr;   3 con; 0-2 aty)
%            Number of variables   :   84 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(condensed_detachment,axiom,
    ( ~ is_a_theorem(equivalent(X,Y))
    | ~ is_a_theorem(X)
    | is_a_theorem(Y) ) ).

cnf(q_1,axiom,
    is_a_theorem(equivalent(X,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X)))) ).

cnf(q_4,axiom,
    is_a_theorem(equivalent(equivalent(equivalent(X,Y),equivalent(X,Z)),equivalent(Y,Z))) ).

cnf(prove_q_2,negated_conjecture,
    ~ is_a_theorem(equivalent(equivalent(a,b),equivalent(equivalent(c,a),equivalent(c,b)))) ).

cnf(refute_0_0,plain,
    ( ~ is_a_theorem(equivalent(equivalent(X,Y),equivalent(X,Z)))
    | ~ is_a_theorem(equivalent(equivalent(equivalent(X,Y),equivalent(X,Z)),equivalent(Y,Z)))
    | is_a_theorem(equivalent(Y,Z)) ),
    inference(subst,[],[condensed_detachment:[bind(X,$fot(equivalent(equivalent(X,Y),equivalent(X,Z)))),bind(Y,$fot(equivalent(Y,Z)))]]) ).

cnf(refute_0_1,plain,
    ( ~ is_a_theorem(equivalent(equivalent(X,Y),equivalent(X,Z)))
    | is_a_theorem(equivalent(Y,Z)) ),
    inference(resolve,[$cnf( is_a_theorem(equivalent(equivalent(equivalent(X,Y),equivalent(X,Z)),equivalent(Y,Z))) )],[q_4,refute_0_0]) ).

cnf(refute_0_2,plain,
    ( ~ is_a_theorem(equivalent(equivalent(equivalent(X_73,X_74),equivalent(X_73,X_72)),equivalent(equivalent(X_73,X_74),equivalent(equivalent(X_74,X_73),equivalent(X_74,X_72)))))
    | is_a_theorem(equivalent(equivalent(X_73,X_72),equivalent(equivalent(X_74,X_73),equivalent(X_74,X_72)))) ),
    inference(subst,[],[refute_0_1:[bind(X,$fot(equivalent(X_73,X_74))),bind(Y,$fot(equivalent(X_73,X_72))),bind(Z,$fot(equivalent(equivalent(X_74,X_73),equivalent(X_74,X_72))))]]) ).

cnf(refute_0_3,plain,
    ( ~ is_a_theorem(equivalent(equivalent(equivalent(X_65,X_66),equivalent(equivalent(X_64,X_65),equivalent(X_64,X_66))),equivalent(equivalent(X_65,X_66),equivalent(equivalent(X_68,X_69),equivalent(equivalent(X_69,X_68),equivalent(X_65,X_66))))))
    | is_a_theorem(equivalent(equivalent(equivalent(X_64,X_65),equivalent(X_64,X_66)),equivalent(equivalent(X_68,X_69),equivalent(equivalent(X_69,X_68),equivalent(X_65,X_66))))) ),
    inference(subst,[],[refute_0_1:[bind(X,$fot(equivalent(X_65,X_66))),bind(Y,$fot(equivalent(equivalent(X_64,X_65),equivalent(X_64,X_66)))),bind(Z,$fot(equivalent(equivalent(X_68,X_69),equivalent(equivalent(X_69,X_68),equivalent(X_65,X_66)))))]]) ).

cnf(refute_0_4,plain,
    ( ~ is_a_theorem(equivalent(X_22,X_23))
    | ~ is_a_theorem(equivalent(equivalent(X_22,X_23),equivalent(equivalent(X_23,X_22),equivalent(X_19,equivalent(equivalent(X_20,X_21),equivalent(equivalent(X_21,X_20),X_19))))))
    | is_a_theorem(equivalent(equivalent(X_23,X_22),equivalent(X_19,equivalent(equivalent(X_20,X_21),equivalent(equivalent(X_21,X_20),X_19))))) ),
    inference(subst,[],[condensed_detachment:[bind(X,$fot(equivalent(X_22,X_23))),bind(Y,$fot(equivalent(equivalent(X_23,X_22),equivalent(X_19,equivalent(equivalent(X_20,X_21),equivalent(equivalent(X_21,X_20),X_19))))))]]) ).

cnf(refute_0_5,plain,
    is_a_theorem(equivalent(X_6,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X_6)))),
    inference(subst,[],[q_1:[bind(X,$fot(X_6))]]) ).

cnf(refute_0_6,plain,
    ( ~ is_a_theorem(X_6)
    | ~ is_a_theorem(equivalent(X_6,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X_6))))
    | is_a_theorem(equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X_6))) ),
    inference(subst,[],[condensed_detachment:[bind(X,$fot(X_6)),bind(Y,$fot(equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X_6))))]]) ).

cnf(refute_0_7,plain,
    ( ~ is_a_theorem(X_6)
    | is_a_theorem(equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X_6))) ),
    inference(resolve,[$cnf( is_a_theorem(equivalent(X_6,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X_6)))) )],[refute_0_5,refute_0_6]) ).

cnf(refute_0_8,plain,
    ( ~ is_a_theorem(equivalent(X,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X))))
    | is_a_theorem(equivalent(equivalent(X_8,X_9),equivalent(equivalent(X_9,X_8),equivalent(X,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X)))))) ),
    inference(subst,[],[refute_0_7:[bind(Y,$fot(X_8)),bind(Z,$fot(X_9)),bind(X_6,$fot(equivalent(X,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X)))))]]) ).

cnf(refute_0_9,plain,
    is_a_theorem(equivalent(equivalent(X_8,X_9),equivalent(equivalent(X_9,X_8),equivalent(X,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X)))))),
    inference(resolve,[$cnf( is_a_theorem(equivalent(X,equivalent(equivalent(Y,Z),equivalent(equivalent(Z,Y),X)))) )],[q_1,refute_0_8]) ).

cnf(refute_0_10,plain,
    is_a_theorem(equivalent(equivalent(X_22,X_23),equivalent(equivalent(X_23,X_22),equivalent(X_19,equivalent(equivalent(X_20,X_21),equivalent(equivalent(X_21,X_20),X_19)))))),
    inference(subst,[],[refute_0_9:[bind(X,$fot(X_19)),bind(Y,$fot(X_20)),bind(Z,$fot(X_21)),bind(X_8,$fot(X_22)),bind(X_9,$fot(X_23))]]) ).

cnf(refute_0_11,plain,
    ( ~ is_a_theorem(equivalent(X_22,X_23))
    | is_a_theorem(equivalent(equivalent(X_23,X_22),equivalent(X_19,equivalent(equivalent(X_20,X_21),equivalent(equivalent(X_21,X_20),X_19))))) ),
    inference(resolve,[$cnf( is_a_theorem(equivalent(equivalent(X_22,X_23),equivalent(equivalent(X_23,X_22),equivalent(X_19,equivalent(equivalent(X_20,X_21),equivalent(equivalent(X_21,X_20),X_19)))))) )],[refute_0_10,refute_0_4]) ).

cnf(refute_0_12,plain,
    ( ~ is_a_theorem(equivalent(equivalent(equivalent(X,Y),equivalent(X,Z)),equivalent(Y,Z)))
    | is_a_theorem(equivalent(equivalent(equivalent(Y,Z),equivalent(equivalent(X,Y),equivalent(X,Z))),equivalent(X_59,equivalent(equivalent(X_60,X_61),equivalent(equivalent(X_61,X_60),X_59))))) ),
    inference(subst,[],[refute_0_11:[bind(X_19,$fot(X_59)),bind(X_20,$fot(X_60)),bind(X_21,$fot(X_61)),bind(X_22,$fot(equivalent(equivalent(X,Y),equivalent(X,Z)))),bind(X_23,$fot(equivalent(Y,Z)))]]) ).

cnf(refute_0_13,plain,
    is_a_theorem(equivalent(equivalent(equivalent(Y,Z),equivalent(equivalent(X,Y),equivalent(X,Z))),equivalent(X_59,equivalent(equivalent(X_60,X_61),equivalent(equivalent(X_61,X_60),X_59))))),
    inference(resolve,[$cnf( is_a_theorem(equivalent(equivalent(equivalent(X,Y),equivalent(X,Z)),equivalent(Y,Z))) )],[q_4,refute_0_12]) ).

cnf(refute_0_14,plain,
    is_a_theorem(equivalent(equivalent(equivalent(X_65,X_66),equivalent(equivalent(X_64,X_65),equivalent(X_64,X_66))),equivalent(equivalent(X_65,X_66),equivalent(equivalent(X_68,X_69),equivalent(equivalent(X_69,X_68),equivalent(X_65,X_66)))))),
    inference(subst,[],[refute_0_13:[bind(X,$fot(X_64)),bind(Y,$fot(X_65)),bind(Z,$fot(X_66)),bind(X_59,$fot(equivalent(X_65,X_66))),bind(X_60,$fot(X_68)),bind(X_61,$fot(X_69))]]) ).

cnf(refute_0_15,plain,
    is_a_theorem(equivalent(equivalent(equivalent(X_64,X_65),equivalent(X_64,X_66)),equivalent(equivalent(X_68,X_69),equivalent(equivalent(X_69,X_68),equivalent(X_65,X_66))))),
    inference(resolve,[$cnf( is_a_theorem(equivalent(equivalent(equivalent(X_65,X_66),equivalent(equivalent(X_64,X_65),equivalent(X_64,X_66))),equivalent(equivalent(X_65,X_66),equivalent(equivalent(X_68,X_69),equivalent(equivalent(X_69,X_68),equivalent(X_65,X_66)))))) )],[refute_0_14,refute_0_3]) ).

cnf(refute_0_16,plain,
    is_a_theorem(equivalent(equivalent(equivalent(X_73,X_74),equivalent(X_73,X_72)),equivalent(equivalent(X_73,X_74),equivalent(equivalent(X_74,X_73),equivalent(X_74,X_72))))),
    inference(subst,[],[refute_0_15:[bind(X_64,$fot(X_73)),bind(X_65,$fot(X_74)),bind(X_66,$fot(X_72)),bind(X_68,$fot(X_73)),bind(X_69,$fot(X_74))]]) ).

cnf(refute_0_17,plain,
    is_a_theorem(equivalent(equivalent(X_73,X_72),equivalent(equivalent(X_74,X_73),equivalent(X_74,X_72)))),
    inference(resolve,[$cnf( is_a_theorem(equivalent(equivalent(equivalent(X_73,X_74),equivalent(X_73,X_72)),equivalent(equivalent(X_73,X_74),equivalent(equivalent(X_74,X_73),equivalent(X_74,X_72))))) )],[refute_0_16,refute_0_2]) ).

cnf(refute_0_18,plain,
    is_a_theorem(equivalent(equivalent(a,b),equivalent(equivalent(c,a),equivalent(c,b)))),
    inference(subst,[],[refute_0_17:[bind(X_72,$fot(b)),bind(X_73,$fot(a)),bind(X_74,$fot(c))]]) ).

cnf(refute_0_19,plain,
    $false,
    inference(resolve,[$cnf( is_a_theorem(equivalent(equivalent(a,b),equivalent(equivalent(c,a),equivalent(c,b)))) )],[refute_0_18,prove_q_2]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : LCL106-1 : TPTP v8.1.0. Released v1.0.0.
% 0.03/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.34  % Computer : n016.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 : Mon Jul  4 06:48:01 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.13/0.36  % SZS status Unsatisfiable 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
% 0.20/0.37  
%------------------------------------------------------------------------------