TSTP Solution File: GRP130-1.003 by Faust---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Faust---1.0
% Problem  : GRP130-1.003 : TPTP v3.4.2. Released v1.2.0.
% Transfm  : none
% Format   : tptp
% Command  : faust %s

% Computer : art01.cs.miami.edu
% Model    : i686 i686
% CPU      : Intel(R) Pentium(R) 4 CPU 2.80GHz @ 2794MHz
% Memory   : 1003MB
% OS       : Linux 2.6.11-1.1369_FC4
% CPULimit : 600s
% DateTime : Wed May  6 12:27:33 EDT 2009

% Result   : Unsatisfiable 1.5s
% Output   : Refutation 1.5s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   20
%            Number of leaves      :   11
% Syntax   : Number of formulae    :   72 (  22 unt;   0 def)
%            Number of atoms       :  154 (   0 equ)
%            Maximal formula atoms :    5 (   2 avg)
%            Number of connectives :  167 (  85   ~;  82   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-3 aty)
%            Number of functors    :    3 (   3 usr;   3 con; 0-0 aty)
%            Number of variables   :   77 (   4 sgn  18   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Faust---1.0 format not known, defaulting to TPTP
fof(element_3,plain,
    group_element(e_3),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168635408,plain,
    group_element(e_3),
    inference(rewrite,[status(thm)],[element_3]),
    [] ).

fof(qg3,plain,
    ! [A,B,C,D] :
      ( ~ product(A,B,C)
      | ~ product(A,C,D)
      | product(D,B,A) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168702768,plain,
    ( ~ product(A,B,C)
    | ~ product(A,C,D)
    | product(D,B,A) ),
    inference(rewrite,[status(thm)],[qg3]),
    [] ).

fof(product_left_cancellation,plain,
    ! [A,B,C,D] :
      ( ~ product(A,B,C)
      | ~ product(D,B,C)
      | equalish(A,D) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168698392,plain,
    ( ~ product(A,B,C)
    | ~ product(D,B,C)
    | equalish(A,D) ),
    inference(rewrite,[status(thm)],[product_left_cancellation]),
    [] ).

fof(e_1_is_not_e_3,plain,
    ~ equalish(e_1,e_3),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168643848,plain,
    ~ equalish(e_1,e_3),
    inference(rewrite,[status(thm)],[e_1_is_not_e_3]),
    [] ).

cnf(176807776,plain,
    ( ~ product(e_1,A,B)
    | ~ product(e_3,A,B) ),
    inference(resolution,[status(thm)],[168698392,168643848]),
    [] ).

cnf(176912232,plain,
    ( ~ product(A,B,C)
    | ~ product(A,C,e_3)
    | ~ product(e_1,B,A) ),
    inference(resolution,[status(thm)],[168702768,176807776]),
    [] ).

fof(product_total_function1,plain,
    ! [A,B] :
      ( ~ group_element(A)
      | ~ group_element(B)
      | product(A,B,e_1)
      | product(A,B,e_2)
      | product(A,B,e_3) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168674248,plain,
    ( ~ group_element(A)
    | ~ group_element(B)
    | product(A,B,e_1)
    | product(A,B,e_2)
    | product(A,B,e_3) ),
    inference(rewrite,[status(thm)],[product_total_function1]),
    [] ).

fof(element_1,plain,
    group_element(e_1),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168627680,plain,
    group_element(e_1),
    inference(rewrite,[status(thm)],[element_1]),
    [] ).

cnf(176515168,plain,
    ( product(e_1,e_1,e_1)
    | product(e_1,e_1,e_2)
    | product(e_1,e_1,e_3) ),
    inference(resolution,[status(thm)],[168674248,168627680]),
    [] ).

cnf(183192856,plain,
    ( ~ product(e_1,A,e_1)
    | product(e_1,e_1,e_1)
    | product(e_1,e_1,e_2) ),
    inference(resolution,[status(thm)],[176912232,176515168]),
    [] ).

fof(product_right_cancellation,plain,
    ! [A,B,C,D] :
      ( ~ product(A,B,C)
      | ~ product(A,D,C)
      | equalish(B,D) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168694760,plain,
    ( ~ product(A,B,C)
    | ~ product(A,D,C)
    | equalish(B,D) ),
    inference(rewrite,[status(thm)],[product_right_cancellation]),
    [] ).

fof(e_1_is_not_e_2,plain,
    ~ equalish(e_1,e_2),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168639928,plain,
    ~ equalish(e_1,e_2),
    inference(rewrite,[status(thm)],[e_1_is_not_e_2]),
    [] ).

cnf(176701872,plain,
    ( ~ product(A,e_1,B)
    | ~ product(A,e_2,B) ),
    inference(resolution,[status(thm)],[168694760,168639928]),
    [] ).

cnf(178643856,plain,
    ( product(e_1,e_1,e_2)
    | product(e_1,e_1,e_3)
    | ~ product(e_1,e_2,e_1) ),
    inference(resolution,[status(thm)],[176515168,176701872]),
    [] ).

fof(product_total_function2,plain,
    ! [A,B,C,D] :
      ( ~ product(A,B,C)
      | ~ product(A,B,D)
      | equalish(C,D) ),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168690528,plain,
    ( ~ product(A,B,C)
    | ~ product(A,B,D)
    | equalish(C,D) ),
    inference(rewrite,[status(thm)],[product_total_function2]),
    [] ).

cnf(176748336,plain,
    ( ~ product(A,B,e_1)
    | ~ product(A,B,e_3) ),
    inference(resolution,[status(thm)],[168690528,168643848]),
    [] ).

cnf(187621312,plain,
    ( product(e_1,e_1,e_2)
    | ~ product(e_1,e_2,e_1) ),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[183192856,178643856,176748336]),
    [] ).

cnf(176734240,plain,
    ( ~ product(e_1,A,B)
    | ~ product(e_2,A,B) ),
    inference(resolution,[status(thm)],[168698392,168639928]),
    [] ).

cnf(176859072,plain,
    ( ~ product(A,B,C)
    | ~ product(A,C,e_2)
    | ~ product(e_1,B,A) ),
    inference(resolution,[status(thm)],[168702768,176734240]),
    [] ).

cnf(178894056,plain,
    ( product(e_1,e_1,e_1)
    | product(e_1,e_1,e_3)
    | ~ product(e_1,A,e_1) ),
    inference(resolution,[status(thm)],[176515168,176859072]),
    [] ).

cnf(176677432,plain,
    ( ~ product(A,B,e_1)
    | ~ product(A,B,e_2) ),
    inference(resolution,[status(thm)],[168690528,168639928]),
    [] ).

cnf(184538272,plain,
    ( product(e_1,e_1,e_3)
    | ~ product(e_1,e_2,e_1) ),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[178894056,178643856,176677432]),
    [] ).

fof(e_2_is_not_e_3,plain,
    ~ equalish(e_2,e_3),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168651208,plain,
    ~ equalish(e_2,e_3),
    inference(rewrite,[status(thm)],[e_2_is_not_e_3]),
    [] ).

cnf(176767360,plain,
    ( ~ product(A,B,e_2)
    | ~ product(A,B,e_3) ),
    inference(resolution,[status(thm)],[168690528,168651208]),
    [] ).

cnf(187898064,plain,
    ~ product(e_1,e_2,e_1),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[187621312,184538272,176767360]),
    [] ).

fof(element_2,plain,
    group_element(e_2),
    file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),
    [] ).

cnf(168631632,plain,
    group_element(e_2),
    inference(rewrite,[status(thm)],[element_2]),
    [] ).

cnf(176614024,plain,
    ( ~ group_element(A)
    | product(A,e_2,e_1)
    | product(A,e_2,e_2)
    | product(A,e_2,e_3) ),
    inference(resolution,[status(thm)],[168674248,168631632]),
    [] ).

cnf(176661544,plain,
    ( product(e_1,e_2,e_1)
    | product(e_1,e_2,e_2)
    | product(e_1,e_2,e_3) ),
    inference(resolution,[status(thm)],[176614024,168627680]),
    [] ).

cnf(188037936,plain,
    ( product(e_1,e_2,e_2)
    | product(e_1,e_2,e_3) ),
    inference(resolution,[status(thm)],[187898064,176661544]),
    [] ).

cnf(188074656,plain,
    ( product(e_1,e_2,e_2)
    | ~ product(e_1,e_1,e_3) ),
    inference(resolution,[status(thm)],[188037936,176701872]),
    [] ).

cnf(176982160,plain,
    ( product(B,B,A)
    | ~ product(B,B,C)
    | ~ product(B,C,A) ),
    inference(resolution,[status(thm)],[168702768,168702768]),
    [] ).

cnf(188229136,plain,
    ( product(e_1,e_2,e_2)
    | ~ product(e_1,e_1,e_2) ),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[188074656,188037936,176982160]),
    [] ).

cnf(188070152,plain,
    ( product(e_1,e_2,e_3)
    | ~ product(e_1,e_1,e_2) ),
    inference(resolution,[status(thm)],[188037936,176701872]),
    [] ).

cnf(189048856,plain,
    ~ product(e_1,e_1,e_2),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[188229136,188070152,176767360]),
    [] ).

cnf(189185496,plain,
    ( product(e_1,e_1,e_1)
    | product(e_1,e_1,e_3) ),
    inference(resolution,[status(thm)],[189048856,176515168]),
    [] ).

cnf(189519720,plain,
    ( product(e_1,e_1,e_1)
    | ~ product(e_1,A,e_1) ),
    inference(resolution,[status(thm)],[189185496,176912232]),
    [] ).

cnf(176784192,plain,
    ( ~ product(A,e_1,B)
    | ~ product(A,e_3,B) ),
    inference(resolution,[status(thm)],[168694760,168643848]),
    [] ).

cnf(189275352,plain,
    ( product(e_1,e_1,e_3)
    | ~ product(e_1,e_3,e_1) ),
    inference(resolution,[status(thm)],[189185496,176784192]),
    [] ).

cnf(196953048,plain,
    ~ product(e_1,e_3,e_1),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[189519720,189275352,176748336]),
    [] ).

cnf(176490856,plain,
    ( ~ group_element(A)
    | product(e_1,A,e_1)
    | product(e_1,A,e_2)
    | product(e_1,A,e_3) ),
    inference(resolution,[status(thm)],[168674248,168627680]),
    [] ).

cnf(197173816,plain,
    ( product(e_1,e_3,e_2)
    | product(e_1,e_3,e_3) ),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[168635408,196953048,176490856]),
    [] ).

cnf(197367008,plain,
    ( product(e_1,e_3,e_2)
    | ~ product(e_2,e_3,e_3) ),
    inference(resolution,[status(thm)],[197173816,176734240]),
    [] ).

cnf(176791048,plain,
    ( ~ product(A,e_2,B)
    | ~ product(A,e_3,B) ),
    inference(resolution,[status(thm)],[168694760,168651208]),
    [] ).

cnf(188093144,plain,
    ( product(e_1,e_2,e_2)
    | ~ product(e_1,e_3,e_3) ),
    inference(resolution,[status(thm)],[188037936,176791048]),
    [] ).

cnf(176898728,plain,
    ( ~ product(A,e_2,B)
    | ~ product(A,B,C)
    | ~ product(C,e_3,A) ),
    inference(resolution,[status(thm)],[168702768,176791048]),
    [] ).

cnf(191864176,plain,
    ( ~ product(e_1,e_3,e_3)
    | ~ product(e_2,e_3,e_1) ),
    inference(resolution,[status(thm)],[188093144,176898728]),
    [] ).

cnf(188323592,plain,
    ( product(e_1,e_2,e_3)
    | ~ product(e_2,e_3,e_1) ),
    inference(resolution,[status(thm)],[188037936,176898728]),
    [] ).

cnf(197624000,plain,
    ~ product(e_2,e_3,e_1),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[191864176,188323592,197173816,176898728]),
    [] ).

cnf(176562904,plain,
    ( ~ group_element(A)
    | product(e_2,A,e_1)
    | product(e_2,A,e_2)
    | product(e_2,A,e_3) ),
    inference(resolution,[status(thm)],[168674248,168631632]),
    [] ).

cnf(197731488,plain,
    ( product(e_2,e_3,e_2)
    | product(e_2,e_3,e_3) ),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[168635408,197624000,176562904]),
    [] ).

cnf(199265624,plain,
    product(e_2,e_3,e_2),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[197367008,197731488,197731488,176912232]),
    [] ).

cnf(176874872,plain,
    ( ~ product(e_2,A,B)
    | ~ product(e_2,B,C)
    | ~ product(C,A,e_3) ),
    inference(resolution,[status(thm)],[168702768,176767360]),
    [] ).

cnf(199521128,plain,
    ~ product(e_2,A,e_3),
    inference(resolution,[status(thm)],[199265624,176874872]),
    [] ).

cnf(199351920,plain,
    ~ product(e_2,e_1,e_2),
    inference(resolution,[status(thm)],[199265624,176784192]),
    [] ).

cnf(189265848,plain,
    ( product(e_1,e_1,e_3)
    | ~ product(e_2,e_1,e_1) ),
    inference(resolution,[status(thm)],[189185496,176734240]),
    [] ).

cnf(176847656,plain,
    ( ~ product(A,e_2,B)
    | ~ product(A,B,C)
    | ~ product(C,e_1,A) ),
    inference(resolution,[status(thm)],[168702768,176701872]),
    [] ).

cnf(189845704,plain,
    ~ product(e_2,e_1,e_1),
    inference(forward_subsumption_resolution__resolution,[status(thm)],[189265848,188074656,176847656]),
    [] ).

cnf(176638000,plain,
    ( product(e_2,e_1,e_1)
    | product(e_2,e_1,e_2)
    | product(e_2,e_1,e_3) ),
    inference(resolution,[status(thm)],[176562904,168627680]),
    [] ).

cnf(190034792,plain,
    ( product(e_2,e_1,e_2)
    | product(e_2,e_1,e_3) ),
    inference(resolution,[status(thm)],[189845704,176638000]),
    [] ).

cnf(200265552,plain,
    product(e_2,e_1,e_3),
    inference(resolution,[status(thm)],[199351920,190034792]),
    [] ).

cnf(contradiction,plain,
    $false,
    inference(resolution,[status(thm)],[199521128,200265552]),
    [] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% Proof found in: 2 seconds
% START OF PROOF SEQUENCE
% fof(element_3,plain,(group_element(e_3)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168635408,plain,(group_element(e_3)),inference(rewrite,[status(thm)],[element_3]),[]).
% 
% fof(qg3,plain,(~product(A,B,C)|~product(A,C,D)|product(D,B,A)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168702768,plain,(~product(A,B,C)|~product(A,C,D)|product(D,B,A)),inference(rewrite,[status(thm)],[qg3]),[]).
% 
% fof(product_left_cancellation,plain,(~product(A,B,C)|~product(D,B,C)|equalish(A,D)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168698392,plain,(~product(A,B,C)|~product(D,B,C)|equalish(A,D)),inference(rewrite,[status(thm)],[product_left_cancellation]),[]).
% 
% fof(e_1_is_not_e_3,plain,(~equalish(e_1,e_3)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168643848,plain,(~equalish(e_1,e_3)),inference(rewrite,[status(thm)],[e_1_is_not_e_3]),[]).
% 
% cnf(176807776,plain,(~product(e_1,A,B)|~product(e_3,A,B)),inference(resolution,[status(thm)],[168698392,168643848]),[]).
% 
% cnf(176912232,plain,(~product(A,B,C)|~product(A,C,e_3)|~product(e_1,B,A)),inference(resolution,[status(thm)],[168702768,176807776]),[]).
% 
% fof(product_total_function1,plain,(~group_element(A)|~group_element(B)|product(A,B,e_1)|product(A,B,e_2)|product(A,B,e_3)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168674248,plain,(~group_element(A)|~group_element(B)|product(A,B,e_1)|product(A,B,e_2)|product(A,B,e_3)),inference(rewrite,[status(thm)],[product_total_function1]),[]).
% 
% fof(element_1,plain,(group_element(e_1)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168627680,plain,(group_element(e_1)),inference(rewrite,[status(thm)],[element_1]),[]).
% 
% cnf(176515168,plain,(product(e_1,e_1,e_1)|product(e_1,e_1,e_2)|product(e_1,e_1,e_3)),inference(resolution,[status(thm)],[168674248,168627680]),[]).
% 
% cnf(183192856,plain,(~product(e_1,A,e_1)|product(e_1,e_1,e_1)|product(e_1,e_1,e_2)),inference(resolution,[status(thm)],[176912232,176515168]),[]).
% 
% fof(product_right_cancellation,plain,(~product(A,B,C)|~product(A,D,C)|equalish(B,D)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168694760,plain,(~product(A,B,C)|~product(A,D,C)|equalish(B,D)),inference(rewrite,[status(thm)],[product_right_cancellation]),[]).
% 
% fof(e_1_is_not_e_2,plain,(~equalish(e_1,e_2)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168639928,plain,(~equalish(e_1,e_2)),inference(rewrite,[status(thm)],[e_1_is_not_e_2]),[]).
% 
% cnf(176701872,plain,(~product(A,e_1,B)|~product(A,e_2,B)),inference(resolution,[status(thm)],[168694760,168639928]),[]).
% 
% cnf(178643856,plain,(product(e_1,e_1,e_2)|product(e_1,e_1,e_3)|~product(e_1,e_2,e_1)),inference(resolution,[status(thm)],[176515168,176701872]),[]).
% 
% fof(product_total_function2,plain,(~product(A,B,C)|~product(A,B,D)|equalish(C,D)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168690528,plain,(~product(A,B,C)|~product(A,B,D)|equalish(C,D)),inference(rewrite,[status(thm)],[product_total_function2]),[]).
% 
% cnf(176748336,plain,(~product(A,B,e_1)|~product(A,B,e_3)),inference(resolution,[status(thm)],[168690528,168643848]),[]).
% 
% cnf(187621312,plain,(product(e_1,e_1,e_2)|~product(e_1,e_2,e_1)),inference(forward_subsumption_resolution__resolution,[status(thm)],[183192856,178643856,176748336]),[]).
% 
% cnf(176734240,plain,(~product(e_1,A,B)|~product(e_2,A,B)),inference(resolution,[status(thm)],[168698392,168639928]),[]).
% 
% cnf(176859072,plain,(~product(A,B,C)|~product(A,C,e_2)|~product(e_1,B,A)),inference(resolution,[status(thm)],[168702768,176734240]),[]).
% 
% cnf(178894056,plain,(product(e_1,e_1,e_1)|product(e_1,e_1,e_3)|~product(e_1,A,e_1)),inference(resolution,[status(thm)],[176515168,176859072]),[]).
% 
% cnf(176677432,plain,(~product(A,B,e_1)|~product(A,B,e_2)),inference(resolution,[status(thm)],[168690528,168639928]),[]).
% 
% cnf(184538272,plain,(product(e_1,e_1,e_3)|~product(e_1,e_2,e_1)),inference(forward_subsumption_resolution__resolution,[status(thm)],[178894056,178643856,176677432]),[]).
% 
% fof(e_2_is_not_e_3,plain,(~equalish(e_2,e_3)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168651208,plain,(~equalish(e_2,e_3)),inference(rewrite,[status(thm)],[e_2_is_not_e_3]),[]).
% 
% cnf(176767360,plain,(~product(A,B,e_2)|~product(A,B,e_3)),inference(resolution,[status(thm)],[168690528,168651208]),[]).
% 
% cnf(187898064,plain,(~product(e_1,e_2,e_1)),inference(forward_subsumption_resolution__resolution,[status(thm)],[187621312,184538272,176767360]),[]).
% 
% fof(element_2,plain,(group_element(e_2)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/GRP/GRP130-1.003.tptp',unknown),[]).
% 
% cnf(168631632,plain,(group_element(e_2)),inference(rewrite,[status(thm)],[element_2]),[]).
% 
% cnf(176614024,plain,(~group_element(A)|product(A,e_2,e_1)|product(A,e_2,e_2)|product(A,e_2,e_3)),inference(resolution,[status(thm)],[168674248,168631632]),[]).
% 
% cnf(176661544,plain,(product(e_1,e_2,e_1)|product(e_1,e_2,e_2)|product(e_1,e_2,e_3)),inference(resolution,[status(thm)],[176614024,168627680]),[]).
% 
% cnf(188037936,plain,(product(e_1,e_2,e_2)|product(e_1,e_2,e_3)),inference(resolution,[status(thm)],[187898064,176661544]),[]).
% 
% cnf(188074656,plain,(product(e_1,e_2,e_2)|~product(e_1,e_1,e_3)),inference(resolution,[status(thm)],[188037936,176701872]),[]).
% 
% cnf(176982160,plain,(product(B,B,A)|~product(B,B,C)|~product(B,C,A)),inference(resolution,[status(thm)],[168702768,168702768]),[]).
% 
% cnf(188229136,plain,(product(e_1,e_2,e_2)|~product(e_1,e_1,e_2)),inference(forward_subsumption_resolution__resolution,[status(thm)],[188074656,188037936,176982160]),[]).
% 
% cnf(188070152,plain,(product(e_1,e_2,e_3)|~product(e_1,e_1,e_2)),inference(resolution,[status(thm)],[188037936,176701872]),[]).
% 
% cnf(189048856,plain,(~product(e_1,e_1,e_2)),inference(forward_subsumption_resolution__resolution,[status(thm)],[188229136,188070152,176767360]),[]).
% 
% cnf(189185496,plain,(product(e_1,e_1,e_1)|product(e_1,e_1,e_3)),inference(resolution,[status(thm)],[189048856,176515168]),[]).
% 
% cnf(189519720,plain,(product(e_1,e_1,e_1)|~product(e_1,A,e_1)),inference(resolution,[status(thm)],[189185496,176912232]),[]).
% 
% cnf(176784192,plain,(~product(A,e_1,B)|~product(A,e_3,B)),inference(resolution,[status(thm)],[168694760,168643848]),[]).
% 
% cnf(189275352,plain,(product(e_1,e_1,e_3)|~product(e_1,e_3,e_1)),inference(resolution,[status(thm)],[189185496,176784192]),[]).
% 
% cnf(196953048,plain,(~product(e_1,e_3,e_1)),inference(forward_subsumption_resolution__resolution,[status(thm)],[189519720,189275352,176748336]),[]).
% 
% cnf(176490856,plain,(~group_element(A)|product(e_1,A,e_1)|product(e_1,A,e_2)|product(e_1,A,e_3)),inference(resolution,[status(thm)],[168674248,168627680]),[]).
% 
% cnf(197173816,plain,(product(e_1,e_3,e_2)|product(e_1,e_3,e_3)),inference(forward_subsumption_resolution__resolution,[status(thm)],[168635408,196953048,176490856]),[]).
% 
% cnf(197367008,plain,(product(e_1,e_3,e_2)|~product(e_2,e_3,e_3)),inference(resolution,[status(thm)],[197173816,176734240]),[]).
% 
% cnf(176791048,plain,(~product(A,e_2,B)|~product(A,e_3,B)),inference(resolution,[status(thm)],[168694760,168651208]),[]).
% 
% cnf(188093144,plain,(product(e_1,e_2,e_2)|~product(e_1,e_3,e_3)),inference(resolution,[status(thm)],[188037936,176791048]),[]).
% 
% cnf(176898728,plain,(~product(A,e_2,B)|~product(A,B,C)|~product(C,e_3,A)),inference(resolution,[status(thm)],[168702768,176791048]),[]).
% 
% cnf(191864176,plain,(~product(e_1,e_3,e_3)|~product(e_2,e_3,e_1)),inference(resolution,[status(thm)],[188093144,176898728]),[]).
% 
% cnf(188323592,plain,(product(e_1,e_2,e_3)|~product(e_2,e_3,e_1)),inference(resolution,[status(thm)],[188037936,176898728]),[]).
% 
% cnf(197624000,plain,(~product(e_2,e_3,e_1)),inference(forward_subsumption_resolution__resolution,[status(thm)],[191864176,188323592,197173816,176898728]),[]).
% 
% cnf(176562904,plain,(~group_element(A)|product(e_2,A,e_1)|product(e_2,A,e_2)|product(e_2,A,e_3)),inference(resolution,[status(thm)],[168674248,168631632]),[]).
% 
% cnf(197731488,plain,(product(e_2,e_3,e_2)|product(e_2,e_3,e_3)),inference(forward_subsumption_resolution__resolution,[status(thm)],[168635408,197624000,176562904]),[]).
% 
% cnf(199265624,plain,(product(e_2,e_3,e_2)),inference(forward_subsumption_resolution__resolution,[status(thm)],[197367008,197731488,197731488,176912232]),[]).
% 
% cnf(176874872,plain,(~product(e_2,A,B)|~product(e_2,B,C)|~product(C,A,e_3)),inference(resolution,[status(thm)],[168702768,176767360]),[]).
% 
% cnf(199521128,plain,(~product(e_2,A,e_3)),inference(resolution,[status(thm)],[199265624,176874872]),[]).
% 
% cnf(199351920,plain,(~product(e_2,e_1,e_2)),inference(resolution,[status(thm)],[199265624,176784192]),[]).
% 
% cnf(189265848,plain,(product(e_1,e_1,e_3)|~product(e_2,e_1,e_1)),inference(resolution,[status(thm)],[189185496,176734240]),[]).
% 
% cnf(176847656,plain,(~product(A,e_2,B)|~product(A,B,C)|~product(C,e_1,A)),inference(resolution,[status(thm)],[168702768,176701872]),[]).
% 
% cnf(189845704,plain,(~product(e_2,e_1,e_1)),inference(forward_subsumption_resolution__resolution,[status(thm)],[189265848,188074656,176847656]),[]).
% 
% cnf(176638000,plain,(product(e_2,e_1,e_1)|product(e_2,e_1,e_2)|product(e_2,e_1,e_3)),inference(resolution,[status(thm)],[176562904,168627680]),[]).
% 
% cnf(190034792,plain,(product(e_2,e_1,e_2)|product(e_2,e_1,e_3)),inference(resolution,[status(thm)],[189845704,176638000]),[]).
% 
% cnf(200265552,plain,(product(e_2,e_1,e_3)),inference(resolution,[status(thm)],[199351920,190034792]),[]).
% 
% cnf(contradiction,plain,$false,inference(resolution,[status(thm)],[199521128,200265552]),[]).
% 
% END OF PROOF SEQUENCE
% 
%------------------------------------------------------------------------------