TSTP Solution File: GRP135-1.002 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : GRP135-1.002 : TPTP v8.1.0. Released v1.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n025.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  : 0s
% DateTime : Sat Jul 16 07:35:31 EDT 2022

% Result   : Unsatisfiable 0.76s 1.16s
% Output   : Refutation 0.76s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13  % Problem  : GRP135-1.002 : TPTP v8.1.0. Released v1.2.0.
% 0.04/0.14  % Command  : bliksem %s
% 0.15/0.35  % Computer : n025.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit : 300
% 0.15/0.35  % DateTime : Mon Jun 13 20:56:39 EDT 2022
% 0.15/0.36  % CPUTime  : 
% 0.76/1.16  *** allocated 10000 integers for termspace/termends
% 0.76/1.16  *** allocated 10000 integers for clauses
% 0.76/1.16  *** allocated 10000 integers for justifications
% 0.76/1.16  Bliksem 1.12
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  Automatic Strategy Selection
% 0.76/1.16  
% 0.76/1.16  Clauses:
% 0.76/1.16  [
% 0.76/1.16     [ 'group_element'( 'e_1' ) ],
% 0.76/1.16     [ 'group_element'( 'e_2' ) ],
% 0.76/1.16     [ ~( equalish( 'e_1', 'e_2' ) ) ],
% 0.76/1.16     [ ~( equalish( 'e_2', 'e_1' ) ) ],
% 0.76/1.16     [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product( X, Y, 
% 0.76/1.16    'e_1' ), product( X, Y, 'e_2' ) ],
% 0.76/1.16     [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), equalish( Z, T ) ]
% 0.76/1.16    ,
% 0.76/1.16     [ ~( product( X, Y, Z ) ), ~( product( X, T, Z ) ), equalish( Y, T ) ]
% 0.76/1.16    ,
% 0.76/1.16     [ ~( product( X, Y, Z ) ), ~( product( T, Y, Z ) ), equalish( X, T ) ]
% 0.76/1.16    ,
% 0.76/1.16     [ ~( product( X, Y, Z ) ), ~( product( Z, X, T ) ), product( T, X, Y ) ]
% 0.76/1.16    
% 0.76/1.16  ] .
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  percentage equality = 0.000000, percentage horn = 0.888889
% 0.76/1.16  This a non-horn, non-equality problem
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  Options Used:
% 0.76/1.16  
% 0.76/1.16  useres =            1
% 0.76/1.16  useparamod =        0
% 0.76/1.16  useeqrefl =         0
% 0.76/1.16  useeqfact =         0
% 0.76/1.16  usefactor =         1
% 0.76/1.16  usesimpsplitting =  0
% 0.76/1.16  usesimpdemod =      0
% 0.76/1.16  usesimpres =        3
% 0.76/1.16  
% 0.76/1.16  resimpinuse      =  1000
% 0.76/1.16  resimpclauses =     20000
% 0.76/1.16  substype =          standard
% 0.76/1.16  backwardsubs =      1
% 0.76/1.16  selectoldest =      5
% 0.76/1.16  
% 0.76/1.16  litorderings [0] =  split
% 0.76/1.16  litorderings [1] =  liftord
% 0.76/1.16  
% 0.76/1.16  termordering =      none
% 0.76/1.16  
% 0.76/1.16  litapriori =        1
% 0.76/1.16  termapriori =       0
% 0.76/1.16  litaposteriori =    0
% 0.76/1.16  termaposteriori =   0
% 0.76/1.16  demodaposteriori =  0
% 0.76/1.16  ordereqreflfact =   0
% 0.76/1.16  
% 0.76/1.16  litselect =         none
% 0.76/1.16  
% 0.76/1.16  maxweight =         15
% 0.76/1.16  maxdepth =          30000
% 0.76/1.16  maxlength =         115
% 0.76/1.16  maxnrvars =         195
% 0.76/1.16  excuselevel =       1
% 0.76/1.16  increasemaxweight = 1
% 0.76/1.16  
% 0.76/1.16  maxselected =       10000000
% 0.76/1.16  maxnrclauses =      10000000
% 0.76/1.16  
% 0.76/1.16  showgenerated =    0
% 0.76/1.16  showkept =         0
% 0.76/1.16  showselected =     0
% 0.76/1.16  showdeleted =      0
% 0.76/1.16  showresimp =       1
% 0.76/1.16  showstatus =       2000
% 0.76/1.16  
% 0.76/1.16  prologoutput =     1
% 0.76/1.16  nrgoals =          5000000
% 0.76/1.16  totalproof =       1
% 0.76/1.16  
% 0.76/1.16  Symbols occurring in the translation:
% 0.76/1.16  
% 0.76/1.16  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.76/1.16  .  [1, 2]      (w:1, o:23, a:1, s:1, b:0), 
% 0.76/1.16  !  [4, 1]      (w:0, o:17, a:1, s:1, b:0), 
% 0.76/1.16  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.76/1.16  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.76/1.16  'e_1'  [39, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.76/1.16  'group_element'  [40, 1]      (w:1, o:22, a:1, s:1, b:0), 
% 0.76/1.16  'e_2'  [41, 0]      (w:1, o:10, a:1, s:1, b:0), 
% 0.76/1.16  equalish  [42, 2]      (w:1, o:48, a:1, s:1, b:0), 
% 0.76/1.16  product  [45, 3]      (w:1, o:49, a:1, s:1, b:0).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  Starting Search:
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  Bliksems!, er is een bewijs:
% 0.76/1.16  % SZS status Unsatisfiable
% 0.76/1.16  % SZS output start Refutation
% 0.76/1.16  
% 0.76/1.16  clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 2, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 3, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 4, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product( 
% 0.76/1.16    X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 7, [ equalish( X, T ), ~( product( X, Y, Z ) ), ~( product( T, Y, Z
% 0.76/1.16     ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 8, [ ~( product( Z, X, T ) ), product( T, X, Y ), ~( product( X, Y
% 0.76/1.16    , Z ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 9, [ ~( 'group_element'( X ) ), product( X, X, 'e_1' ), product( X
% 0.76/1.16    , X, 'e_2' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 56, [ ~( 'group_element'( Z ) ), ~( 'group_element'( X ) ), ~( 
% 0.76/1.16    product( X, Y, Z ) ), product( Z, X, 'e_1' ), product( 'e_2', X, Y ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 57, [ ~( 'group_element'( X ) ), ~( 'group_element'( Z ) ), product( 
% 0.76/1.16    Y, X, Z ), product( X, Z, 'e_1' ), ~( product( 'e_2', X, Y ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 58, [ product( 'e_1', 'e_1', 'e_1' ), ~( product( 'e_2', 'e_1', 
% 0.76/1.16    'e_1' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 59, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.16    product( X, 'e_1', 'e_2' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 78, [ product( 'e_1', 'e_1', 'e_1' ), product( 'e_2', 'e_1', 'e_1'
% 0.76/1.16     ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 79, [ ~( 'group_element'( X ) ), product( X, 'e_1', 'e_1' ), 
% 0.76/1.16    product( 'e_2', X, 'e_1' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 80, [ product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 81, [ ~( product( 'e_1', X, 'e_1' ) ), product( 'e_1', 'e_1', X ) ]
% 0.76/1.16     )
% 0.76/1.16  .
% 0.76/1.16  clause( 86, [ equalish( X, 'e_1' ), ~( product( X, 'e_1', 'e_1' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 110, [ product( X, 'e_1', Y ), ~( product( 'e_1', Y, 'e_1' ) ), ~( 
% 0.76/1.16    product( 'e_1', X, 'e_1' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 119, [ ~( product( 'e_1', X, 'e_1' ) ), product( X, 'e_1', X ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 122, [ ~( product( 'e_1', 'e_2', 'e_1' ) ), product( 'e_2', 'e_2', 
% 0.76/1.16    'e_1' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 158, [ equalish( X, 'e_2' ), ~( product( X, 'e_2', 'e_1' ) ), ~( 
% 0.76/1.16    product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 161, [ ~( product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 164, [ ~( product( 'e_2', 'e_1', X ) ), ~( product( X, 'e_2', 'e_1'
% 0.76/1.16     ) ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 171, [ ~( 'group_element'( 'e_1' ) ), ~( 'group_element'( 'e_2' ) )
% 0.76/1.16    , product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 175, [ product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.16  .
% 0.76/1.16  clause( 176, [] )
% 0.76/1.16  .
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  % SZS output end Refutation
% 0.76/1.16  found a proof!
% 0.76/1.16  
% 0.76/1.16  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.76/1.16  
% 0.76/1.16  initialclauses(
% 0.76/1.16  [ clause( 178, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.16  , clause( 179, [ 'group_element'( 'e_2' ) ] )
% 0.76/1.16  , clause( 180, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.76/1.16  , clause( 181, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.76/1.16  , clause( 182, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.76/1.16    product( X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.16  , clause( 183, [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), equalish( 
% 0.76/1.16    Z, T ) ] )
% 0.76/1.16  , clause( 184, [ ~( product( X, Y, Z ) ), ~( product( X, T, Z ) ), equalish( 
% 0.76/1.16    Y, T ) ] )
% 0.76/1.16  , clause( 185, [ ~( product( X, Y, Z ) ), ~( product( T, Y, Z ) ), equalish( 
% 0.76/1.16    X, T ) ] )
% 0.76/1.16  , clause( 186, [ ~( product( X, Y, Z ) ), ~( product( Z, X, T ) ), product( 
% 0.76/1.16    T, X, Y ) ] )
% 0.76/1.16  ] ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.16  , clause( 178, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.16  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.76/1.16  , clause( 179, [ 'group_element'( 'e_2' ) ] )
% 0.76/1.16  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 2, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.76/1.16  , clause( 180, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.76/1.16  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 3, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.76/1.16  , clause( 181, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.76/1.16  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 4, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product( 
% 0.76/1.16    X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.16  , clause( 182, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.76/1.16    product( X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.16  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.76/1.16     ), ==>( 1, 1 ), ==>( 2, 2 ), ==>( 3, 3 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 7, [ equalish( X, T ), ~( product( X, Y, Z ) ), ~( product( T, Y, Z
% 0.76/1.16     ) ) ] )
% 0.76/1.16  , clause( 185, [ ~( product( X, Y, Z ) ), ~( product( T, Y, Z ) ), equalish( 
% 0.76/1.16    X, T ) ] )
% 0.76/1.16  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.76/1.16    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 8, [ ~( product( Z, X, T ) ), product( T, X, Y ), ~( product( X, Y
% 0.76/1.16    , Z ) ) ] )
% 0.76/1.16  , clause( 186, [ ~( product( X, Y, Z ) ), ~( product( Z, X, T ) ), product( 
% 0.76/1.16    T, X, Y ) ] )
% 0.76/1.16  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.76/1.16    permutation( 0, [ ==>( 0, 2 ), ==>( 1, 0 ), ==>( 2, 1 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  factor(
% 0.76/1.16  clause( 197, [ ~( 'group_element'( X ) ), product( X, X, 'e_1' ), product( 
% 0.76/1.16    X, X, 'e_2' ) ] )
% 0.76/1.16  , clause( 4, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.76/1.16    product( X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.16  , 0, 1, substitution( 0, [ :=( X, X ), :=( Y, X )] )).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 9, [ ~( 'group_element'( X ) ), product( X, X, 'e_1' ), product( X
% 0.76/1.16    , X, 'e_2' ) ] )
% 0.76/1.16  , clause( 197, [ ~( 'group_element'( X ) ), product( X, X, 'e_1' ), product( 
% 0.76/1.16    X, X, 'e_2' ) ] )
% 0.76/1.16  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.76/1.16    1 ), ==>( 2, 2 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  resolution(
% 0.76/1.16  clause( 199, [ product( 'e_2', Y, Z ), ~( product( Y, Z, X ) ), ~( 
% 0.76/1.16    'group_element'( X ) ), ~( 'group_element'( Y ) ), product( X, Y, 'e_1' )
% 0.76/1.16     ] )
% 0.76/1.16  , clause( 8, [ ~( product( Z, X, T ) ), product( T, X, Y ), ~( product( X, 
% 0.76/1.16    Y, Z ) ) ] )
% 0.76/1.16  , 0, clause( 4, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.76/1.16    product( X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.16  , 3, substitution( 0, [ :=( X, Y ), :=( Y, Z ), :=( Z, X ), :=( T, 'e_2' )] )
% 0.76/1.16    , substitution( 1, [ :=( X, X ), :=( Y, Y )] )).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 56, [ ~( 'group_element'( Z ) ), ~( 'group_element'( X ) ), ~( 
% 0.76/1.16    product( X, Y, Z ) ), product( Z, X, 'e_1' ), product( 'e_2', X, Y ) ] )
% 0.76/1.16  , clause( 199, [ product( 'e_2', Y, Z ), ~( product( Y, Z, X ) ), ~( 
% 0.76/1.16    'group_element'( X ) ), ~( 'group_element'( Y ) ), product( X, Y, 'e_1' )
% 0.76/1.16     ] )
% 0.76/1.16  , substitution( 0, [ :=( X, Z ), :=( Y, X ), :=( Z, Y )] ), 
% 0.76/1.16    permutation( 0, [ ==>( 0, 4 ), ==>( 1, 2 ), ==>( 2, 0 ), ==>( 3, 1 ), 
% 0.76/1.16    ==>( 4, 3 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  resolution(
% 0.76/1.16  clause( 217, [ ~( product( 'e_2', X, Y ) ), product( Y, X, Z ), ~( 
% 0.76/1.16    'group_element'( X ) ), ~( 'group_element'( Z ) ), product( X, Z, 'e_1' )
% 0.76/1.16     ] )
% 0.76/1.16  , clause( 8, [ ~( product( Z, X, T ) ), product( T, X, Y ), ~( product( X, 
% 0.76/1.16    Y, Z ) ) ] )
% 0.76/1.16  , 2, clause( 4, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.76/1.16    product( X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.16  , 3, substitution( 0, [ :=( X, X ), :=( Y, Z ), :=( Z, 'e_2' ), :=( T, Y )] )
% 0.76/1.16    , substitution( 1, [ :=( X, X ), :=( Y, Z )] )).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 57, [ ~( 'group_element'( X ) ), ~( 'group_element'( Z ) ), product( 
% 0.76/1.16    Y, X, Z ), product( X, Z, 'e_1' ), ~( product( 'e_2', X, Y ) ) ] )
% 0.76/1.16  , clause( 217, [ ~( product( 'e_2', X, Y ) ), product( Y, X, Z ), ~( 
% 0.76/1.16    'group_element'( X ) ), ~( 'group_element'( Z ) ), product( X, Z, 'e_1' )
% 0.76/1.16     ] )
% 0.76/1.16  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.76/1.16    permutation( 0, [ ==>( 0, 4 ), ==>( 1, 2 ), ==>( 2, 0 ), ==>( 3, 1 ), 
% 0.76/1.16    ==>( 4, 3 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  factor(
% 0.76/1.16  clause( 231, [ ~( 'group_element'( 'e_1' ) ), ~( 'group_element'( 'e_1' ) )
% 0.76/1.16    , product( 'e_1', 'e_1', 'e_1' ), ~( product( 'e_2', 'e_1', 'e_1' ) ) ]
% 0.76/1.16     )
% 0.76/1.16  , clause( 57, [ ~( 'group_element'( X ) ), ~( 'group_element'( Z ) ), 
% 0.76/1.16    product( Y, X, Z ), product( X, Z, 'e_1' ), ~( product( 'e_2', X, Y ) ) ]
% 0.76/1.16     )
% 0.76/1.16  , 2, 3, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_1' ), :=( Z, 'e_1' )] )
% 0.76/1.16    ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  factor(
% 0.76/1.16  clause( 232, [ ~( 'group_element'( 'e_1' ) ), product( 'e_1', 'e_1', 'e_1'
% 0.76/1.16     ), ~( product( 'e_2', 'e_1', 'e_1' ) ) ] )
% 0.76/1.16  , clause( 231, [ ~( 'group_element'( 'e_1' ) ), ~( 'group_element'( 'e_1' )
% 0.76/1.16     ), product( 'e_1', 'e_1', 'e_1' ), ~( product( 'e_2', 'e_1', 'e_1' ) ) ]
% 0.76/1.16     )
% 0.76/1.16  , 0, 1, substitution( 0, [] )).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  resolution(
% 0.76/1.16  clause( 234, [ product( 'e_1', 'e_1', 'e_1' ), ~( product( 'e_2', 'e_1', 
% 0.76/1.16    'e_1' ) ) ] )
% 0.76/1.16  , clause( 232, [ ~( 'group_element'( 'e_1' ) ), product( 'e_1', 'e_1', 
% 0.76/1.16    'e_1' ), ~( product( 'e_2', 'e_1', 'e_1' ) ) ] )
% 0.76/1.16  , 0, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.16  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 58, [ product( 'e_1', 'e_1', 'e_1' ), ~( product( 'e_2', 'e_1', 
% 0.76/1.16    'e_1' ) ) ] )
% 0.76/1.16  , clause( 234, [ product( 'e_1', 'e_1', 'e_1' ), ~( product( 'e_2', 'e_1', 
% 0.76/1.16    'e_1' ) ) ] )
% 0.76/1.16  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.76/1.16     ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  factor(
% 0.76/1.16  clause( 236, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( X ) ), 
% 0.76/1.16    ~( product( X, 'e_1', 'e_2' ) ), product( 'e_2', X, 'e_1' ) ] )
% 0.76/1.16  , clause( 56, [ ~( 'group_element'( Z ) ), ~( 'group_element'( X ) ), ~( 
% 0.76/1.16    product( X, Y, Z ) ), product( Z, X, 'e_1' ), product( 'e_2', X, Y ) ] )
% 0.76/1.16  , 3, 4, substitution( 0, [ :=( X, X ), :=( Y, 'e_1' ), :=( Z, 'e_2' )] )
% 0.76/1.16    ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  resolution(
% 0.76/1.16  clause( 239, [ ~( 'group_element'( X ) ), ~( product( X, 'e_1', 'e_2' ) ), 
% 0.76/1.16    product( 'e_2', X, 'e_1' ) ] )
% 0.76/1.16  , clause( 236, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( X ) ), 
% 0.76/1.16    ~( product( X, 'e_1', 'e_2' ) ), product( 'e_2', X, 'e_1' ) ] )
% 0.76/1.16  , 0, clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.76/1.16  , 0, substitution( 0, [ :=( X, X )] ), substitution( 1, [] )).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  subsumption(
% 0.76/1.16  clause( 59, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.16    product( X, 'e_1', 'e_2' ) ) ] )
% 0.76/1.16  , clause( 239, [ ~( 'group_element'( X ) ), ~( product( X, 'e_1', 'e_2' ) )
% 0.76/1.16    , product( 'e_2', X, 'e_1' ) ] )
% 0.76/1.16  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.76/1.16    2 ), ==>( 2, 1 )] ) ).
% 0.76/1.16  
% 0.76/1.16  
% 0.76/1.16  resolution(
% 0.76/1.16  clause( 240, [ ~( 'group_element'( 'e_1' ) ), product( 'e_2', 'e_1', 'e_1'
% 0.76/1.16     ), ~( 'group_element'( 'e_1' ) ), product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 59, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.17    product( X, 'e_1', 'e_2' ) ) ] )
% 0.76/1.17  , 2, clause( 9, [ ~( 'group_element'( X ) ), product( X, X, 'e_1' ), 
% 0.76/1.17    product( X, X, 'e_2' ) ] )
% 0.76/1.17  , 2, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [ :=( X, 'e_1'
% 0.76/1.17     )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  factor(
% 0.76/1.17  clause( 241, [ ~( 'group_element'( 'e_1' ) ), product( 'e_2', 'e_1', 'e_1'
% 0.76/1.17     ), product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 240, [ ~( 'group_element'( 'e_1' ) ), product( 'e_2', 'e_1', 
% 0.76/1.17    'e_1' ), ~( 'group_element'( 'e_1' ) ), product( 'e_1', 'e_1', 'e_1' ) ]
% 0.76/1.17     )
% 0.76/1.17  , 0, 2, substitution( 0, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 243, [ product( 'e_2', 'e_1', 'e_1' ), product( 'e_1', 'e_1', 'e_1'
% 0.76/1.17     ) ] )
% 0.76/1.17  , clause( 241, [ ~( 'group_element'( 'e_1' ) ), product( 'e_2', 'e_1', 
% 0.76/1.17    'e_1' ), product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , 0, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.17  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 78, [ product( 'e_1', 'e_1', 'e_1' ), product( 'e_2', 'e_1', 'e_1'
% 0.76/1.17     ) ] )
% 0.76/1.17  , clause( 243, [ product( 'e_2', 'e_1', 'e_1' ), product( 'e_1', 'e_1', 
% 0.76/1.17    'e_1' ) ] )
% 0.76/1.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] )
% 0.76/1.17     ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 244, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.17    'group_element'( X ) ), ~( 'group_element'( 'e_1' ) ), product( X, 'e_1'
% 0.76/1.17    , 'e_1' ) ] )
% 0.76/1.17  , clause( 59, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.17    product( X, 'e_1', 'e_2' ) ) ] )
% 0.76/1.17  , 2, clause( 4, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.76/1.17    product( X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.17  , 3, substitution( 0, [ :=( X, X )] ), substitution( 1, [ :=( X, X ), :=( Y
% 0.76/1.17    , 'e_1' )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 247, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.17    'group_element'( X ) ), product( X, 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 244, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.17    'group_element'( X ) ), ~( 'group_element'( 'e_1' ) ), product( X, 'e_1'
% 0.76/1.17    , 'e_1' ) ] )
% 0.76/1.17  , 3, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.17  , 0, substitution( 0, [ :=( X, X )] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  factor(
% 0.76/1.17  clause( 248, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), 
% 0.76/1.17    product( X, 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 247, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.17    'group_element'( X ) ), product( X, 'e_1', 'e_1' ) ] )
% 0.76/1.17  , 0, 2, substitution( 0, [ :=( X, X )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 79, [ ~( 'group_element'( X ) ), product( X, 'e_1', 'e_1' ), 
% 0.76/1.17    product( 'e_2', X, 'e_1' ) ] )
% 0.76/1.17  , clause( 248, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), 
% 0.76/1.17    product( X, 'e_1', 'e_1' ) ] )
% 0.76/1.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.76/1.17    2 ), ==>( 2, 1 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 249, [ product( 'e_1', 'e_1', 'e_1' ), product( 'e_1', 'e_1', 'e_1'
% 0.76/1.17     ) ] )
% 0.76/1.17  , clause( 58, [ product( 'e_1', 'e_1', 'e_1' ), ~( product( 'e_2', 'e_1', 
% 0.76/1.17    'e_1' ) ) ] )
% 0.76/1.17  , 1, clause( 78, [ product( 'e_1', 'e_1', 'e_1' ), product( 'e_2', 'e_1', 
% 0.76/1.17    'e_1' ) ] )
% 0.76/1.17  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  factor(
% 0.76/1.17  clause( 250, [ product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 249, [ product( 'e_1', 'e_1', 'e_1' ), product( 'e_1', 'e_1', 
% 0.76/1.17    'e_1' ) ] )
% 0.76/1.17  , 0, 1, substitution( 0, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 80, [ product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 250, [ product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 251, [ product( 'e_1', 'e_1', X ), ~( product( 'e_1', X, 'e_1' ) )
% 0.76/1.17     ] )
% 0.76/1.17  , clause( 8, [ ~( product( Z, X, T ) ), product( T, X, Y ), ~( product( X, 
% 0.76/1.17    Y, Z ) ) ] )
% 0.76/1.17  , 0, clause( 80, [ product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , 0, substitution( 0, [ :=( X, 'e_1' ), :=( Y, X ), :=( Z, 'e_1' ), :=( T, 
% 0.76/1.17    'e_1' )] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 81, [ ~( product( 'e_1', X, 'e_1' ) ), product( 'e_1', 'e_1', X ) ]
% 0.76/1.17     )
% 0.76/1.17  , clause( 251, [ product( 'e_1', 'e_1', X ), ~( product( 'e_1', X, 'e_1' )
% 0.76/1.17     ) ] )
% 0.76/1.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 
% 0.76/1.17    0 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 254, [ equalish( X, 'e_1' ), ~( product( X, 'e_1', 'e_1' ) ) ] )
% 0.76/1.17  , clause( 7, [ equalish( X, T ), ~( product( X, Y, Z ) ), ~( product( T, Y
% 0.76/1.17    , Z ) ) ] )
% 0.76/1.17  , 2, clause( 80, [ product( 'e_1', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_1' ), :=( Z, 'e_1' ), :=( T, 
% 0.76/1.17    'e_1' )] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 86, [ equalish( X, 'e_1' ), ~( product( X, 'e_1', 'e_1' ) ) ] )
% 0.76/1.17  , clause( 254, [ equalish( X, 'e_1' ), ~( product( X, 'e_1', 'e_1' ) ) ] )
% 0.76/1.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.76/1.17    1 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 257, [ product( X, 'e_1', Y ), ~( product( 'e_1', Y, 'e_1' ) ), ~( 
% 0.76/1.17    product( 'e_1', X, 'e_1' ) ) ] )
% 0.76/1.17  , clause( 8, [ ~( product( Z, X, T ) ), product( T, X, Y ), ~( product( X, 
% 0.76/1.17    Y, Z ) ) ] )
% 0.76/1.17  , 0, clause( 81, [ ~( product( 'e_1', X, 'e_1' ) ), product( 'e_1', 'e_1', 
% 0.76/1.17    X ) ] )
% 0.76/1.17  , 1, substitution( 0, [ :=( X, 'e_1' ), :=( Y, Y ), :=( Z, 'e_1' ), :=( T, 
% 0.76/1.17    X )] ), substitution( 1, [ :=( X, X )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 110, [ product( X, 'e_1', Y ), ~( product( 'e_1', Y, 'e_1' ) ), ~( 
% 0.76/1.17    product( 'e_1', X, 'e_1' ) ) ] )
% 0.76/1.17  , clause( 257, [ product( X, 'e_1', Y ), ~( product( 'e_1', Y, 'e_1' ) ), 
% 0.76/1.17    ~( product( 'e_1', X, 'e_1' ) ) ] )
% 0.76/1.17  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.76/1.17     ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  factor(
% 0.76/1.17  clause( 260, [ product( X, 'e_1', X ), ~( product( 'e_1', X, 'e_1' ) ) ] )
% 0.76/1.17  , clause( 110, [ product( X, 'e_1', Y ), ~( product( 'e_1', Y, 'e_1' ) ), 
% 0.76/1.17    ~( product( 'e_1', X, 'e_1' ) ) ] )
% 0.76/1.17  , 1, 2, substitution( 0, [ :=( X, X ), :=( Y, X )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 119, [ ~( product( 'e_1', X, 'e_1' ) ), product( X, 'e_1', X ) ] )
% 0.76/1.17  , clause( 260, [ product( X, 'e_1', X ), ~( product( 'e_1', X, 'e_1' ) ) ]
% 0.76/1.17     )
% 0.76/1.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 
% 0.76/1.17    0 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 261, [ ~( 'group_element'( 'e_2' ) ), product( 'e_2', 'e_2', 'e_1'
% 0.76/1.17     ), ~( product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , clause( 59, [ ~( 'group_element'( X ) ), product( 'e_2', X, 'e_1' ), ~( 
% 0.76/1.17    product( X, 'e_1', 'e_2' ) ) ] )
% 0.76/1.17  , 2, clause( 119, [ ~( product( 'e_1', X, 'e_1' ) ), product( X, 'e_1', X )
% 0.76/1.17     ] )
% 0.76/1.17  , 1, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [ :=( X, 'e_2'
% 0.76/1.17     )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 262, [ product( 'e_2', 'e_2', 'e_1' ), ~( product( 'e_1', 'e_2', 
% 0.76/1.17    'e_1' ) ) ] )
% 0.76/1.17  , clause( 261, [ ~( 'group_element'( 'e_2' ) ), product( 'e_2', 'e_2', 
% 0.76/1.17    'e_1' ), ~( product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , 0, clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.76/1.17  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 122, [ ~( product( 'e_1', 'e_2', 'e_1' ) ), product( 'e_2', 'e_2', 
% 0.76/1.17    'e_1' ) ] )
% 0.76/1.17  , clause( 262, [ product( 'e_2', 'e_2', 'e_1' ), ~( product( 'e_1', 'e_2', 
% 0.76/1.17    'e_1' ) ) ] )
% 0.76/1.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] )
% 0.76/1.17     ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 264, [ equalish( X, 'e_2' ), ~( product( X, 'e_2', 'e_1' ) ), ~( 
% 0.76/1.17    product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , clause( 7, [ equalish( X, T ), ~( product( X, Y, Z ) ), ~( product( T, Y
% 0.76/1.17    , Z ) ) ] )
% 0.76/1.17  , 2, clause( 122, [ ~( product( 'e_1', 'e_2', 'e_1' ) ), product( 'e_2', 
% 0.76/1.17    'e_2', 'e_1' ) ] )
% 0.76/1.17  , 1, substitution( 0, [ :=( X, X ), :=( Y, 'e_2' ), :=( Z, 'e_1' ), :=( T, 
% 0.76/1.17    'e_2' )] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 158, [ equalish( X, 'e_2' ), ~( product( X, 'e_2', 'e_1' ) ), ~( 
% 0.76/1.17    product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , clause( 264, [ equalish( X, 'e_2' ), ~( product( X, 'e_2', 'e_1' ) ), ~( 
% 0.76/1.17    product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.76/1.17    1 ), ==>( 2, 2 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  factor(
% 0.76/1.17  clause( 267, [ equalish( 'e_1', 'e_2' ), ~( product( 'e_1', 'e_2', 'e_1' )
% 0.76/1.17     ) ] )
% 0.76/1.17  , clause( 158, [ equalish( X, 'e_2' ), ~( product( X, 'e_2', 'e_1' ) ), ~( 
% 0.76/1.17    product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , 1, 2, substitution( 0, [ :=( X, 'e_1' )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 268, [ ~( product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , clause( 2, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.76/1.17  , 0, clause( 267, [ equalish( 'e_1', 'e_2' ), ~( product( 'e_1', 'e_2', 
% 0.76/1.17    'e_1' ) ) ] )
% 0.76/1.17  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 161, [ ~( product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , clause( 268, [ ~( product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 269, [ ~( product( X, 'e_2', 'e_1' ) ), ~( product( 'e_2', 'e_1', X
% 0.76/1.17     ) ) ] )
% 0.76/1.17  , clause( 161, [ ~( product( 'e_1', 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , 0, clause( 8, [ ~( product( Z, X, T ) ), product( T, X, Y ), ~( product( 
% 0.76/1.17    X, Y, Z ) ) ] )
% 0.76/1.17  , 1, substitution( 0, [] ), substitution( 1, [ :=( X, 'e_2' ), :=( Y, 'e_1'
% 0.76/1.17     ), :=( Z, X ), :=( T, 'e_1' )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 164, [ ~( product( 'e_2', 'e_1', X ) ), ~( product( X, 'e_2', 'e_1'
% 0.76/1.17     ) ) ] )
% 0.76/1.17  , clause( 269, [ ~( product( X, 'e_2', 'e_1' ) ), ~( product( 'e_2', 'e_1'
% 0.76/1.17    , X ) ) ] )
% 0.76/1.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 
% 0.76/1.17    0 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 271, [ ~( product( 'e_2', 'e_2', 'e_1' ) ), ~( 'group_element'( 
% 0.76/1.17    'e_2' ) ), ~( 'group_element'( 'e_1' ) ), product( 'e_2', 'e_1', 'e_1' )
% 0.76/1.17     ] )
% 0.76/1.17  , clause( 164, [ ~( product( 'e_2', 'e_1', X ) ), ~( product( X, 'e_2', 
% 0.76/1.17    'e_1' ) ) ] )
% 0.76/1.17  , 0, clause( 4, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.76/1.17    product( X, Y, 'e_1' ), product( X, Y, 'e_2' ) ] )
% 0.76/1.17  , 3, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [ :=( X, 'e_2'
% 0.76/1.17     ), :=( Y, 'e_1' )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 274, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( 'e_1' ) )
% 0.76/1.17    , product( 'e_2', 'e_1', 'e_1' ), ~( 'group_element'( 'e_2' ) ), product( 
% 0.76/1.17    'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 271, [ ~( product( 'e_2', 'e_2', 'e_1' ) ), ~( 'group_element'( 
% 0.76/1.17    'e_2' ) ), ~( 'group_element'( 'e_1' ) ), product( 'e_2', 'e_1', 'e_1' )
% 0.76/1.17     ] )
% 0.76/1.17  , 0, clause( 79, [ ~( 'group_element'( X ) ), product( X, 'e_1', 'e_1' ), 
% 0.76/1.17    product( 'e_2', X, 'e_1' ) ] )
% 0.76/1.17  , 2, substitution( 0, [] ), substitution( 1, [ :=( X, 'e_2' )] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  factor(
% 0.76/1.17  clause( 276, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( 'e_1' ) )
% 0.76/1.17    , product( 'e_2', 'e_1', 'e_1' ), ~( 'group_element'( 'e_2' ) ) ] )
% 0.76/1.17  , clause( 274, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( 'e_1' )
% 0.76/1.17     ), product( 'e_2', 'e_1', 'e_1' ), ~( 'group_element'( 'e_2' ) ), 
% 0.76/1.17    product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , 2, 4, substitution( 0, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  factor(
% 0.76/1.17  clause( 277, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( 'e_1' ) )
% 0.76/1.17    , product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 276, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( 'e_1' )
% 0.76/1.17     ), product( 'e_2', 'e_1', 'e_1' ), ~( 'group_element'( 'e_2' ) ) ] )
% 0.76/1.17  , 0, 3, substitution( 0, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 171, [ ~( 'group_element'( 'e_1' ) ), ~( 'group_element'( 'e_2' ) )
% 0.76/1.17    , product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 277, [ ~( 'group_element'( 'e_2' ) ), ~( 'group_element'( 'e_1' )
% 0.76/1.17     ), product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 ), ==>( 2
% 0.76/1.17    , 2 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 278, [ ~( 'group_element'( 'e_2' ) ), product( 'e_2', 'e_1', 'e_1'
% 0.76/1.17     ) ] )
% 0.76/1.17  , clause( 171, [ ~( 'group_element'( 'e_1' ) ), ~( 'group_element'( 'e_2' )
% 0.76/1.17     ), product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , 0, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.76/1.17  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 279, [ product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 278, [ ~( 'group_element'( 'e_2' ) ), product( 'e_2', 'e_1', 
% 0.76/1.17    'e_1' ) ] )
% 0.76/1.17  , 0, clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.76/1.17  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 175, [ product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , clause( 279, [ product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 280, [ equalish( 'e_2', 'e_1' ) ] )
% 0.76/1.17  , clause( 86, [ equalish( X, 'e_1' ), ~( product( X, 'e_1', 'e_1' ) ) ] )
% 0.76/1.17  , 1, clause( 175, [ product( 'e_2', 'e_1', 'e_1' ) ] )
% 0.76/1.17  , 0, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  resolution(
% 0.76/1.17  clause( 281, [] )
% 0.76/1.17  , clause( 3, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.76/1.17  , 0, clause( 280, [ equalish( 'e_2', 'e_1' ) ] )
% 0.76/1.17  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  subsumption(
% 0.76/1.17  clause( 176, [] )
% 0.76/1.17  , clause( 281, [] )
% 0.76/1.17  , substitution( 0, [] ), permutation( 0, [] ) ).
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  end.
% 0.76/1.17  
% 0.76/1.17  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.76/1.17  
% 0.76/1.17  Memory use:
% 0.76/1.17  
% 0.76/1.17  space for terms:        2509
% 0.76/1.17  space for clauses:      7380
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  clauses generated:      563
% 0.76/1.17  clauses kept:           177
% 0.76/1.17  clauses selected:       46
% 0.76/1.17  clauses deleted:        4
% 0.76/1.17  clauses inuse deleted:  0
% 0.76/1.17  
% 0.76/1.17  subsentry:          4783
% 0.76/1.17  literals s-matched: 2751
% 0.76/1.17  literals matched:   1935
% 0.76/1.17  full subsumption:   954
% 0.76/1.17  
% 0.76/1.17  checksum:           -2793573
% 0.76/1.17  
% 0.76/1.17  
% 0.76/1.17  Bliksem ended
%------------------------------------------------------------------------------