TSTP Solution File: GRP123-6.003 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : GRP123-6.003 : 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 07:35:01 EDT 2022

% Result   : Unsatisfiable 0.46s 1.14s
% Output   : Refutation 0.46s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : GRP123-6.003 : TPTP v8.1.0. Released v1.2.0.
% 0.07/0.14  % Command  : bliksem %s
% 0.13/0.35  % Computer : n025.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % DateTime : Mon Jun 13 15:38:54 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.46/1.14  *** allocated 10000 integers for termspace/termends
% 0.46/1.14  *** allocated 10000 integers for clauses
% 0.46/1.14  *** allocated 10000 integers for justifications
% 0.46/1.14  Bliksem 1.12
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  Automatic Strategy Selection
% 0.46/1.14  
% 0.46/1.14  Clauses:
% 0.46/1.14  [
% 0.46/1.14     [ 'group_element'( 'e_1' ) ],
% 0.46/1.14     [ 'group_element'( 'e_2' ) ],
% 0.46/1.14     [ 'group_element'( 'e_3' ) ],
% 0.46/1.14     [ ~( equalish( 'e_1', 'e_2' ) ) ],
% 0.46/1.14     [ ~( equalish( 'e_1', 'e_3' ) ) ],
% 0.46/1.14     [ ~( equalish( 'e_2', 'e_1' ) ) ],
% 0.46/1.14     [ ~( equalish( 'e_2', 'e_3' ) ) ],
% 0.46/1.14     [ ~( equalish( 'e_3', 'e_1' ) ) ],
% 0.46/1.14     [ ~( equalish( 'e_3', 'e_2' ) ) ],
% 0.46/1.14     [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product1( X, Y, 
% 0.46/1.14    'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' ) ],
% 0.46/1.14     [ ~( product1( X, Y, Z ) ), ~( product1( X, Y, T ) ), equalish( Z, T ) ]
% 0.46/1.14    ,
% 0.46/1.14     [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), equalish( Y, T ) ]
% 0.46/1.14    ,
% 0.46/1.14     [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), equalish( X, T ) ]
% 0.46/1.14    ,
% 0.46/1.14     [ product1( X, X, X ) ],
% 0.46/1.14     [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product2( X, Y, 
% 0.46/1.14    'e_1' ), product2( X, Y, 'e_2' ), product2( X, Y, 'e_3' ) ],
% 0.46/1.14     [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), equalish( Z, T ) ]
% 0.46/1.14    ,
% 0.46/1.14     [ ~( product2( X, Y, Z ) ), ~( product2( X, T, Z ) ), equalish( Y, T ) ]
% 0.46/1.14    ,
% 0.46/1.14     [ ~( product2( X, Y, Z ) ), ~( product2( T, Y, Z ) ), equalish( X, T ) ]
% 0.46/1.14    ,
% 0.46/1.14     [ product2( X, X, X ) ],
% 0.46/1.14     [ ~( product1( X, Y, Z ) ), ~( product1( Z, Y, T ) ), product2( T, X, Y
% 0.46/1.14     ) ]
% 0.46/1.14  ] .
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  percentage equality = 0.000000, percentage horn = 0.900000
% 0.46/1.14  This is a near-Horn, non-equality  problem
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  Options Used:
% 0.46/1.14  
% 0.46/1.14  useres =            1
% 0.46/1.14  useparamod =        0
% 0.46/1.14  useeqrefl =         0
% 0.46/1.14  useeqfact =         0
% 0.46/1.14  usefactor =         1
% 0.46/1.14  usesimpsplitting =  0
% 0.46/1.14  usesimpdemod =      0
% 0.46/1.14  usesimpres =        4
% 0.46/1.14  
% 0.46/1.14  resimpinuse      =  1000
% 0.46/1.14  resimpclauses =     20000
% 0.46/1.14  substype =          standard
% 0.46/1.14  backwardsubs =      1
% 0.46/1.14  selectoldest =      5
% 0.46/1.14  
% 0.46/1.14  litorderings [0] =  split
% 0.46/1.14  litorderings [1] =  liftord
% 0.46/1.14  
% 0.46/1.14  termordering =      none
% 0.46/1.14  
% 0.46/1.14  litapriori =        1
% 0.46/1.14  termapriori =       0
% 0.46/1.14  litaposteriori =    0
% 0.46/1.14  termaposteriori =   0
% 0.46/1.14  demodaposteriori =  0
% 0.46/1.14  ordereqreflfact =   0
% 0.46/1.14  
% 0.46/1.14  litselect =         negative
% 0.46/1.14  
% 0.46/1.14  maxweight =         30000
% 0.46/1.14  maxdepth =          30000
% 0.46/1.14  maxlength =         115
% 0.46/1.14  maxnrvars =         195
% 0.46/1.14  excuselevel =       0
% 0.46/1.14  increasemaxweight = 0
% 0.46/1.14  
% 0.46/1.14  maxselected =       10000000
% 0.46/1.14  maxnrclauses =      10000000
% 0.46/1.14  
% 0.46/1.14  showgenerated =    0
% 0.46/1.14  showkept =         0
% 0.46/1.14  showselected =     0
% 0.46/1.14  showdeleted =      0
% 0.46/1.14  showresimp =       1
% 0.46/1.14  showstatus =       2000
% 0.46/1.14  
% 0.46/1.14  prologoutput =     1
% 0.46/1.14  nrgoals =          5000000
% 0.46/1.14  totalproof =       1
% 0.46/1.14  
% 0.46/1.14  Symbols occurring in the translation:
% 0.46/1.14  
% 0.46/1.14  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.46/1.14  .  [1, 2]      (w:1, o:24, a:1, s:1, b:0), 
% 0.46/1.14  !  [4, 1]      (w:1, o:18, a:1, s:1, b:0), 
% 0.46/1.14  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.46/1.14  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.46/1.14  'e_1'  [39, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.46/1.14  'group_element'  [40, 1]      (w:1, o:23, a:1, s:1, b:0), 
% 0.46/1.14  'e_2'  [41, 0]      (w:1, o:10, a:1, s:1, b:0), 
% 0.46/1.14  'e_3'  [42, 0]      (w:1, o:11, a:1, s:1, b:0), 
% 0.46/1.14  equalish  [43, 2]      (w:1, o:49, a:1, s:1, b:0), 
% 0.46/1.14  product1  [46, 3]      (w:1, o:50, a:1, s:1, b:0), 
% 0.46/1.14  product2  [49, 3]      (w:1, o:51, a:1, s:1, b:0).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  Starting Search:
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  Bliksems!, er is een bewijs:
% 0.46/1.14  % SZS status Unsatisfiable
% 0.46/1.14  % SZS output start Refutation
% 0.46/1.14  
% 0.46/1.14  clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 2, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 3, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 4, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 5, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 7, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 9, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_3' ), product1( 
% 0.46/1.14    X, Y, 'e_1' ), product1( X, Y, 'e_2' ), ~( 'group_element'( Y ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 11, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X, T
% 0.46/1.14    , Z ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 12, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T, Y
% 0.46/1.14    , Z ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 13, [ product1( X, X, X ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 15, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X, Y
% 0.46/1.14    , T ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 18, [ product2( X, X, X ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 19, [ ~( product1( X, Y, Z ) ), product2( T, X, Y ), ~( product1( Z
% 0.46/1.14    , Y, T ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 28, [ product2( X, X, Y ), ~( product1( X, Y, X ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 30, [ product1( X, 'e_1', 'e_3' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.14    product1( X, 'e_1', 'e_2' ), ~( 'group_element'( X ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 36, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 37, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 38, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 40, [ product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_2' ), product1( 'e_2', 'e_1', 'e_3' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 41, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 51, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_2' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 52, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_2', X, 'e_1' )
% 0.46/1.14    , ~( product1( X, 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 56, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_1' ), product2( 'e_2', 'e_2', 'e_1' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 57, [ product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 60, [ product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  .
% 0.46/1.14  clause( 63, [] )
% 0.46/1.14  .
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  % SZS output end Refutation
% 0.46/1.14  found a proof!
% 0.46/1.14  
% 0.46/1.14  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.46/1.14  
% 0.46/1.14  initialclauses(
% 0.46/1.14  [ clause( 65, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.14  , clause( 66, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.14  , clause( 67, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.14  , clause( 68, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.14  , clause( 69, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  , clause( 70, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.46/1.14  , clause( 71, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.46/1.14  , clause( 72, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.14  , clause( 73, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.46/1.14  , clause( 74, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.46/1.14    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.14     ] )
% 0.46/1.14  , clause( 75, [ ~( product1( X, Y, Z ) ), ~( product1( X, Y, T ) ), 
% 0.46/1.14    equalish( Z, T ) ] )
% 0.46/1.14  , clause( 76, [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), 
% 0.46/1.14    equalish( Y, T ) ] )
% 0.46/1.14  , clause( 77, [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), 
% 0.46/1.14    equalish( X, T ) ] )
% 0.46/1.14  , clause( 78, [ product1( X, X, X ) ] )
% 0.46/1.14  , clause( 79, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.46/1.14    product2( X, Y, 'e_1' ), product2( X, Y, 'e_2' ), product2( X, Y, 'e_3' )
% 0.46/1.14     ] )
% 0.46/1.14  , clause( 80, [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), 
% 0.46/1.14    equalish( Z, T ) ] )
% 0.46/1.14  , clause( 81, [ ~( product2( X, Y, Z ) ), ~( product2( X, T, Z ) ), 
% 0.46/1.14    equalish( Y, T ) ] )
% 0.46/1.14  , clause( 82, [ ~( product2( X, Y, Z ) ), ~( product2( T, Y, Z ) ), 
% 0.46/1.14    equalish( X, T ) ] )
% 0.46/1.14  , clause( 83, [ product2( X, X, X ) ] )
% 0.46/1.14  , clause( 84, [ ~( product1( X, Y, Z ) ), ~( product1( Z, Y, T ) ), 
% 0.46/1.14    product2( T, X, Y ) ] )
% 0.46/1.14  ] ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.14  , clause( 65, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.14  , clause( 66, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 2, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.14  , clause( 67, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 3, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.14  , clause( 68, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 4, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  , clause( 69, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 5, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.46/1.14  , clause( 70, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 7, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.14  , clause( 72, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 9, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_3' ), product1( 
% 0.46/1.14    X, Y, 'e_1' ), product1( X, Y, 'e_2' ), ~( 'group_element'( Y ) ) ] )
% 0.46/1.14  , clause( 74, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.46/1.14    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.14     ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.14     ), ==>( 1, 4 ), ==>( 2, 2 ), ==>( 3, 3 ), ==>( 4, 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 11, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X, T
% 0.46/1.14    , Z ) ) ] )
% 0.46/1.14  , clause( 76, [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), 
% 0.46/1.14    equalish( Y, T ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.14    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 12, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T, Y
% 0.46/1.14    , Z ) ) ] )
% 0.46/1.14  , clause( 77, [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), 
% 0.46/1.14    equalish( X, T ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.14    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 13, [ product1( X, X, X ) ] )
% 0.46/1.14  , clause( 78, [ product1( X, X, X ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 15, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X, Y
% 0.46/1.14    , T ) ) ] )
% 0.46/1.14  , clause( 80, [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), 
% 0.46/1.14    equalish( Z, T ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.14    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 18, [ product2( X, X, X ) ] )
% 0.46/1.14  , clause( 83, [ product2( X, X, X ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 19, [ ~( product1( X, Y, Z ) ), product2( T, X, Y ), ~( product1( Z
% 0.46/1.14    , Y, T ) ) ] )
% 0.46/1.14  , clause( 84, [ ~( product1( X, Y, Z ) ), ~( product1( Z, Y, T ) ), 
% 0.46/1.14    product2( T, X, Y ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.14    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 2 ), ==>( 2, 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  factor(
% 0.46/1.14  clause( 120, [ ~( product1( X, Y, X ) ), product2( X, X, Y ) ] )
% 0.46/1.14  , clause( 19, [ ~( product1( X, Y, Z ) ), product2( T, X, Y ), ~( product1( 
% 0.46/1.14    Z, Y, T ) ) ] )
% 0.46/1.14  , 0, 2, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, X ), :=( T, X )] )
% 0.46/1.14    ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 28, [ product2( X, X, Y ), ~( product1( X, Y, X ) ) ] )
% 0.46/1.14  , clause( 120, [ ~( product1( X, Y, X ) ), product2( X, X, Y ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 1
% 0.46/1.14     ), ==>( 1, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 122, [ ~( 'group_element'( X ) ), product1( X, 'e_1', 'e_3' ), 
% 0.46/1.14    product1( X, 'e_1', 'e_1' ), product1( X, 'e_1', 'e_2' ) ] )
% 0.46/1.14  , clause( 9, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_3' ), product1( 
% 0.46/1.14    X, Y, 'e_1' ), product1( X, Y, 'e_2' ), ~( 'group_element'( Y ) ) ] )
% 0.46/1.14  , 4, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.14  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_1' )] ), substitution( 1, [] )
% 0.46/1.14    ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 30, [ product1( X, 'e_1', 'e_3' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.14    product1( X, 'e_1', 'e_2' ), ~( 'group_element'( X ) ) ] )
% 0.46/1.14  , clause( 122, [ ~( 'group_element'( X ) ), product1( X, 'e_1', 'e_3' ), 
% 0.46/1.14    product1( X, 'e_1', 'e_1' ), product1( X, 'e_1', 'e_2' ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 
% 0.46/1.14    0 ), ==>( 2, 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 124, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.14  , clause( 11, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.46/1.14    , T, Z ) ) ] )
% 0.46/1.14  , 2, clause( 13, [ product1( X, X, X ) ] )
% 0.46/1.14  , 0, substitution( 0, [ :=( X, Y ), :=( Y, X ), :=( Z, Y ), :=( T, Y )] ), 
% 0.46/1.14    substitution( 1, [ :=( X, Y )] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 36, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.14  , clause( 124, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.14     ), ==>( 1, 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 126, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.14  , clause( 15, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X
% 0.46/1.14    , Y, T ) ) ] )
% 0.46/1.14  , 2, clause( 18, [ product2( X, X, X ) ] )
% 0.46/1.14  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Y ), :=( Z, X ), :=( T, Y )] ), 
% 0.46/1.14    substitution( 1, [ :=( X, Y )] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 37, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.14  , clause( 126, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.14     ), ==>( 1, 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 128, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.14  , clause( 12, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.46/1.14    , Y, Z ) ) ] )
% 0.46/1.14  , 2, clause( 13, [ product1( X, X, X ) ] )
% 0.46/1.14  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Y ), :=( T, Y )] ), 
% 0.46/1.14    substitution( 1, [ :=( X, Y )] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 38, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.14  , clause( 128, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.14     ), ==>( 1, 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 129, [ product1( 'e_2', 'e_1', 'e_3' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_1' ), product1( 'e_2', 'e_1', 'e_2' ) ] )
% 0.46/1.14  , clause( 30, [ product1( X, 'e_1', 'e_3' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.14    product1( X, 'e_1', 'e_2' ), ~( 'group_element'( X ) ) ] )
% 0.46/1.14  , 3, clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.14  , 0, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 40, [ product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_2' ), product1( 'e_2', 'e_1', 'e_3' ) ] )
% 0.46/1.14  , clause( 129, [ product1( 'e_2', 'e_1', 'e_3' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_1' ), product1( 'e_2', 'e_1', 'e_2' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.14    , 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 130, [ product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ), product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.14  , clause( 30, [ product1( X, 'e_1', 'e_3' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.14    product1( X, 'e_1', 'e_2' ), ~( 'group_element'( X ) ) ] )
% 0.46/1.14  , 3, clause( 2, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.14  , 0, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 41, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.14  , clause( 130, [ product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ), product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.14    , 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 131, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_1' ), 
% 0.46/1.14    product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.14  , clause( 36, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.14  , 1, clause( 41, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.14    , 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.14  , 2, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.46/1.14    , [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 132, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_2' ) ] )
% 0.46/1.14  , clause( 4, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  , 0, clause( 131, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_1'
% 0.46/1.14     ), product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.14  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 51, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_2' ) ] )
% 0.46/1.14  , clause( 132, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_2' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.46/1.14     ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 136, [ ~( product1( X, 'e_1', 'e_3' ) ), product2( 'e_2', X, 'e_1'
% 0.46/1.14     ), product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , clause( 19, [ ~( product1( X, Y, Z ) ), product2( T, X, Y ), ~( product1( 
% 0.46/1.14    Z, Y, T ) ) ] )
% 0.46/1.14  , 2, clause( 51, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.14    , 'e_2' ) ] )
% 0.46/1.14  , 1, substitution( 0, [ :=( X, X ), :=( Y, 'e_1' ), :=( Z, 'e_3' ), :=( T, 
% 0.46/1.14    'e_2' )] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 52, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_2', X, 'e_1' )
% 0.46/1.14    , ~( product1( X, 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  , clause( 136, [ ~( product1( X, 'e_1', 'e_3' ) ), product2( 'e_2', X, 
% 0.46/1.14    'e_1' ), product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.46/1.14    1 ), ==>( 2, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 137, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_2', 'e_2', 
% 0.46/1.14    'e_1' ), product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 'e_2' )
% 0.46/1.14     ] )
% 0.46/1.14  , clause( 52, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_2', X, 'e_1'
% 0.46/1.14     ), ~( product1( X, 'e_1', 'e_3' ) ) ] )
% 0.46/1.14  , 2, clause( 40, [ product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_2', 'e_1'
% 0.46/1.14    , 'e_2' ), product1( 'e_2', 'e_1', 'e_3' ) ] )
% 0.46/1.14  , 2, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 138, [ product2( 'e_2', 'e_2', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ), product2( 'e_2', 'e_2', 'e_1' ), product1( 'e_2', 'e_1', 'e_1' )
% 0.46/1.14     ] )
% 0.46/1.14  , clause( 28, [ product2( X, X, Y ), ~( product1( X, Y, X ) ) ] )
% 0.46/1.14  , 1, clause( 137, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_2', 'e_2'
% 0.46/1.14    , 'e_1' ), product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 'e_2'
% 0.46/1.14     ) ] )
% 0.46/1.14  , 3, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.14    , [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  factor(
% 0.46/1.14  clause( 139, [ product2( 'e_2', 'e_2', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ), product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , clause( 138, [ product2( 'e_2', 'e_2', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ), product2( 'e_2', 'e_2', 'e_1' ), product1( 'e_2', 'e_1', 'e_1' )
% 0.46/1.14     ] )
% 0.46/1.14  , 0, 2, substitution( 0, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 56, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_1' ), product2( 'e_2', 'e_2', 'e_1' ) ] )
% 0.46/1.14  , clause( 139, [ product2( 'e_2', 'e_2', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ), product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.14    , 1 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 140, [ equalish( 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_1' ), 
% 0.46/1.14    product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , clause( 37, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.14  , 1, clause( 56, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_2', 'e_1'
% 0.46/1.14    , 'e_1' ), product2( 'e_2', 'e_2', 'e_1' ) ] )
% 0.46/1.14  , 2, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.46/1.14    , [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 141, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_1' ) ] )
% 0.46/1.14  , clause( 3, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.14  , 0, clause( 140, [ equalish( 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_1'
% 0.46/1.14     ), product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 57, [ product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.14    'e_1' ) ] )
% 0.46/1.14  , clause( 141, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_2', 'e_1', 
% 0.46/1.14    'e_1' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] )
% 0.46/1.14     ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 143, [ equalish( 'e_3', 'e_1' ), product1( 'e_2', 'e_1', 'e_1' ) ]
% 0.46/1.14     )
% 0.46/1.14  , clause( 38, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.14  , 1, clause( 57, [ product1( 'e_2', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.14    , 'e_1' ) ] )
% 0.46/1.14  , 1, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.14    , [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 144, [ product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , clause( 7, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.14  , 0, clause( 143, [ equalish( 'e_3', 'e_1' ), product1( 'e_2', 'e_1', 'e_1'
% 0.46/1.14     ) ] )
% 0.46/1.14  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 60, [ product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , clause( 144, [ product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 145, [ equalish( 'e_2', 'e_1' ) ] )
% 0.46/1.14  , clause( 38, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.14  , 1, clause( 60, [ product1( 'e_2', 'e_1', 'e_1' ) ] )
% 0.46/1.14  , 0, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.14    , [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  resolution(
% 0.46/1.14  clause( 146, [] )
% 0.46/1.14  , clause( 5, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.46/1.14  , 0, clause( 145, [ equalish( 'e_2', 'e_1' ) ] )
% 0.46/1.14  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  subsumption(
% 0.46/1.14  clause( 63, [] )
% 0.46/1.14  , clause( 146, [] )
% 0.46/1.14  , substitution( 0, [] ), permutation( 0, [] ) ).
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  end.
% 0.46/1.14  
% 0.46/1.14  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.46/1.14  
% 0.46/1.14  Memory use:
% 0.46/1.14  
% 0.46/1.14  space for terms:        1103
% 0.46/1.14  space for clauses:      3371
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  clauses generated:      95
% 0.46/1.14  clauses kept:           64
% 0.46/1.14  clauses selected:       43
% 0.46/1.14  clauses deleted:        5
% 0.46/1.14  clauses inuse deleted:  0
% 0.46/1.14  
% 0.46/1.14  subsentry:          211
% 0.46/1.14  literals s-matched: 109
% 0.46/1.14  literals matched:   97
% 0.46/1.14  full subsumption:   36
% 0.46/1.14  
% 0.46/1.14  checksum:           -270879484
% 0.46/1.14  
% 0.46/1.14  
% 0.46/1.14  Bliksem ended
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