TSTP Solution File: GRP124-6.004 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : GRP124-6.004 : TPTP v8.1.0. Released v1.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n027.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 07:35:05 EDT 2022

% Result   : Unsatisfiable 0.70s 1.10s
% Output   : Refutation 0.70s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : GRP124-6.004 : TPTP v8.1.0. Released v1.2.0.
% 0.07/0.13  % Command  : bliksem %s
% 0.13/0.34  % Computer : n027.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  % DateTime : Mon Jun 13 14:08:47 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.70/1.10  *** allocated 10000 integers for termspace/termends
% 0.70/1.10  *** allocated 10000 integers for clauses
% 0.70/1.10  *** allocated 10000 integers for justifications
% 0.70/1.10  Bliksem 1.12
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  Automatic Strategy Selection
% 0.70/1.10  
% 0.70/1.10  Clauses:
% 0.70/1.10  [
% 0.70/1.10     [ 'group_element'( 'e_1' ) ],
% 0.70/1.10     [ 'group_element'( 'e_2' ) ],
% 0.70/1.10     [ 'group_element'( 'e_3' ) ],
% 0.70/1.10     [ 'group_element'( 'e_4' ) ],
% 0.70/1.10     [ ~( equalish( 'e_1', 'e_2' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_1', 'e_3' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_1', 'e_4' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_2', 'e_1' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_2', 'e_3' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_2', 'e_4' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_3', 'e_1' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_3', 'e_2' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_3', 'e_4' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_4', 'e_1' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_4', 'e_2' ) ) ],
% 0.70/1.10     [ ~( equalish( 'e_4', 'e_3' ) ) ],
% 0.70/1.10     [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product1( X, Y, 
% 0.70/1.10    'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' ), product1( X, Y
% 0.70/1.10    , 'e_4' ) ],
% 0.70/1.10     [ ~( product1( X, Y, Z ) ), ~( product1( X, Y, T ) ), equalish( Z, T ) ]
% 0.70/1.10    ,
% 0.70/1.10     [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), equalish( Y, T ) ]
% 0.70/1.10    ,
% 0.70/1.10     [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), equalish( X, T ) ]
% 0.70/1.10    ,
% 0.70/1.10     [ product1( X, X, X ) ],
% 0.70/1.10     [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product2( X, Y, 
% 0.70/1.10    'e_1' ), product2( X, Y, 'e_2' ), product2( X, Y, 'e_3' ), product2( X, Y
% 0.70/1.10    , 'e_4' ) ],
% 0.70/1.10     [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), equalish( Z, T ) ]
% 0.70/1.10    ,
% 0.70/1.10     [ ~( product2( X, Y, Z ) ), ~( product2( X, T, Z ) ), equalish( Y, T ) ]
% 0.70/1.10    ,
% 0.70/1.10     [ ~( product2( X, Y, Z ) ), ~( product2( T, Y, Z ) ), equalish( X, T ) ]
% 0.70/1.10    ,
% 0.70/1.10     [ product2( X, X, X ) ],
% 0.70/1.10     [ ~( product1( X, Y, Z ) ), ~( product1( Z, X, T ) ), product2( T, Y, X
% 0.70/1.10     ) ]
% 0.70/1.10  ] .
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  percentage equality = 0.000000, percentage horn = 0.925926
% 0.70/1.10  This is a near-Horn, non-equality  problem
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  Options Used:
% 0.70/1.10  
% 0.70/1.10  useres =            1
% 0.70/1.10  useparamod =        0
% 0.70/1.10  useeqrefl =         0
% 0.70/1.10  useeqfact =         0
% 0.70/1.10  usefactor =         1
% 0.70/1.10  usesimpsplitting =  0
% 0.70/1.10  usesimpdemod =      0
% 0.70/1.10  usesimpres =        4
% 0.70/1.10  
% 0.70/1.10  resimpinuse      =  1000
% 0.70/1.10  resimpclauses =     20000
% 0.70/1.10  substype =          standard
% 0.70/1.10  backwardsubs =      1
% 0.70/1.10  selectoldest =      5
% 0.70/1.10  
% 0.70/1.10  litorderings [0] =  split
% 0.70/1.10  litorderings [1] =  liftord
% 0.70/1.10  
% 0.70/1.10  termordering =      none
% 0.70/1.10  
% 0.70/1.10  litapriori =        1
% 0.70/1.10  termapriori =       0
% 0.70/1.10  litaposteriori =    0
% 0.70/1.10  termaposteriori =   0
% 0.70/1.10  demodaposteriori =  0
% 0.70/1.10  ordereqreflfact =   0
% 0.70/1.10  
% 0.70/1.10  litselect =         negative
% 0.70/1.10  
% 0.70/1.10  maxweight =         30000
% 0.70/1.10  maxdepth =          30000
% 0.70/1.10  maxlength =         115
% 0.70/1.10  maxnrvars =         195
% 0.70/1.10  excuselevel =       0
% 0.70/1.10  increasemaxweight = 0
% 0.70/1.10  
% 0.70/1.10  maxselected =       10000000
% 0.70/1.10  maxnrclauses =      10000000
% 0.70/1.10  
% 0.70/1.10  showgenerated =    0
% 0.70/1.10  showkept =         0
% 0.70/1.10  showselected =     0
% 0.70/1.10  showdeleted =      0
% 0.70/1.10  showresimp =       1
% 0.70/1.10  showstatus =       2000
% 0.70/1.10  
% 0.70/1.10  prologoutput =     1
% 0.70/1.10  nrgoals =          5000000
% 0.70/1.10  totalproof =       1
% 0.70/1.10  
% 0.70/1.10  Symbols occurring in the translation:
% 0.70/1.10  
% 0.70/1.10  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.70/1.10  .  [1, 2]      (w:1, o:25, a:1, s:1, b:0), 
% 0.70/1.10  !  [4, 1]      (w:1, o:19, a:1, s:1, b:0), 
% 0.70/1.10  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.70/1.10  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.70/1.10  'e_1'  [39, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.70/1.10  'group_element'  [40, 1]      (w:1, o:24, a:1, s:1, b:0), 
% 0.70/1.10  'e_2'  [41, 0]      (w:1, o:10, a:1, s:1, b:0), 
% 0.70/1.10  'e_3'  [42, 0]      (w:1, o:11, a:1, s:1, b:0), 
% 0.70/1.10  'e_4'  [43, 0]      (w:1, o:12, a:1, s:1, b:0), 
% 0.70/1.10  equalish  [44, 2]      (w:1, o:50, a:1, s:1, b:0), 
% 0.70/1.10  product1  [47, 3]      (w:1, o:51, a:1, s:1, b:0), 
% 0.70/1.10  product2  [50, 3]      (w:1, o:52, a:1, s:1, b:0).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  Starting Search:
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  Bliksems!, er is een bewijs:
% 0.70/1.10  % SZS status Unsatisfiable
% 0.70/1.10  % SZS output start Refutation
% 0.70/1.10  
% 0.70/1.10  clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 2, [ 'group_element'( 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 3, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 4, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 6, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 7, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 8, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 9, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 11, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 12, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 13, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 14, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 15, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 16, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), product1( 
% 0.70/1.10    X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' ), ~( 
% 0.70/1.10    'group_element'( Y ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 18, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X, T
% 0.70/1.10    , Z ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 19, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T, Y
% 0.70/1.10    , Z ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 20, [ product1( X, X, X ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 22, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X, Y
% 0.70/1.10    , T ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 25, [ product2( X, X, X ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( Z
% 0.70/1.10    , X, T ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 36, [ product1( X, 'e_1', 'e_4' ), product1( X, 'e_1', 'e_1' ), 
% 0.70/1.10    product1( X, 'e_1', 'e_2' ), product1( X, 'e_1', 'e_3' ), ~( 
% 0.70/1.10    'group_element'( X ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 37, [ product1( X, 'e_2', 'e_4' ), product1( X, 'e_2', 'e_1' ), 
% 0.70/1.10    product1( X, 'e_2', 'e_2' ), product1( X, 'e_2', 'e_3' ), ~( 
% 0.70/1.10    'group_element'( X ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 38, [ product1( X, 'e_3', 'e_4' ), product1( X, 'e_3', 'e_1' ), 
% 0.70/1.10    product1( X, 'e_3', 'e_2' ), product1( X, 'e_3', 'e_3' ), ~( 
% 0.70/1.10    'group_element'( X ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 39, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.70/1.10    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.70/1.10    'group_element'( X ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 44, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 78, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.10    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ), product1( 'e_4', 'e_1', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 83, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 
% 0.70/1.10    'e_2' ), product1( 'e_1', 'e_2', 'e_3' ), product1( 'e_1', 'e_2', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 85, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.10    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ), product1( 'e_4', 'e_2', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 97, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.10    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 99, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( X, 'e_4' ), 
% 0.70/1.10    product1( 'e_4', 'e_2', 'e_2' ), ~( product1( X, 'e_2', 'e_3' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 103, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 
% 0.70/1.10    'e_2' ), product1( 'e_2', 'e_3', 'e_3' ), product1( 'e_2', 'e_3', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 104, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.10    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ), product1( 'e_4', 'e_3', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 109, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.10    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ), product1( 'e_1', 'e_4', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 110, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 111, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.10    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 113, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.10    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 115, [ product1( 'e_1', 'e_4', 'e_1' ), equalish( X, 'e_1' ), 
% 0.70/1.10    product1( 'e_1', 'e_4', 'e_2' ), ~( product1( X, 'e_4', 'e_3' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 179, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 180, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.10    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_2' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 181, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_2' ), product2( 'e_3', X, 'e_4' ), ~( product1( 'e_4', X, 'e_2' ) ) ]
% 0.70/1.10     )
% 0.70/1.10  .
% 0.70/1.10  clause( 189, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 190, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_1' ), product2( 'e_2', X, 'e_4' ), ~( product1( 'e_4', X, 'e_1' ) ) ]
% 0.70/1.10     )
% 0.70/1.10  .
% 0.70/1.10  clause( 195, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.10    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 201, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.10    'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 203, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', X, 'e_4' )
% 0.70/1.10    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 211, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.10    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product2( 'e_2', 'e_2', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 219, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_2' ), 
% 0.70/1.10    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 223, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.10    'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 224, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', X, 'e_4' )
% 0.70/1.10    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 236, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.10    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 237, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.10    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product2( 'e_1', 'e_1', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 265, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_1' ), 
% 0.70/1.10    product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 269, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.10    'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 270, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_2', X, 'e_1' )
% 0.70/1.10    , ~( product1( 'e_1', X, 'e_4' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 272, [ equalish( X, 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ), ~( 
% 0.70/1.10    product1( 'e_4', X, 'e_2' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 275, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 
% 0.70/1.10    'e_1' ), product1( 'e_1', 'e_2', 'e_2' ), product1( 'e_1', 'e_2', 'e_3' )
% 0.70/1.10    , product2( 'e_2', 'e_2', 'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 288, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.10    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 294, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.10    'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 298, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.70/1.10    product1( X, 'e_3', 'e_2' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 319, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_3', 'e_3', 'e_4' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 323, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.10    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 329, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 333, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', X, 'e_4' )
% 0.70/1.10    , ~( product1( 'e_4', X, 'e_2' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 338, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', 'e_3', 
% 0.70/1.10    'e_4' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 340, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.70/1.10    product2( 'e_1', 'e_3', X ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 568, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.10    'e_1' ), equalish( 'e_1', 'e_2' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 572, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.10    'e_1' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 574, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.10    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 580, [ equalish( 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ]
% 0.70/1.10     )
% 0.70/1.10  .
% 0.70/1.10  clause( 583, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 590, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_1' ), product2( 'e_2', 'e_2', 'e_4' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 591, [ product2( 'e_1', X, 'e_2' ), ~( product1( 'e_2', X, 'e_4' )
% 0.70/1.10     ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 593, [ equalish( X, 'e_2' ), ~( product1( 'e_4', X, 'e_1' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 598, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 
% 0.70/1.10    'e_2' ), product1( 'e_2', 'e_3', 'e_3' ), product2( 'e_1', 'e_3', 'e_2' )
% 0.70/1.10     ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 609, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.10    'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 614, [ equalish( X, 'e_4' ), product1( 'e_1', 'e_4', 'e_1' ), ~( 
% 0.70/1.10    product1( 'e_2', X, 'e_1' ) ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 621, [ product1( 'e_2', 'e_3', 'e_1' ), equalish( 'e_2', 'e_4' ), 
% 0.70/1.10    product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 627, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.10    'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 631, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.10    'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 632, [ product1( 'e_2', 'e_3', 'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 633, [ product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.70/1.10  .
% 0.70/1.10  clause( 643, [] )
% 0.70/1.10  .
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  % SZS output end Refutation
% 0.70/1.10  found a proof!
% 0.70/1.10  
% 0.70/1.10  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.70/1.10  
% 0.70/1.10  initialclauses(
% 0.70/1.10  [ clause( 645, [ 'group_element'( 'e_1' ) ] )
% 0.70/1.10  , clause( 646, [ 'group_element'( 'e_2' ) ] )
% 0.70/1.10  , clause( 647, [ 'group_element'( 'e_3' ) ] )
% 0.70/1.10  , clause( 648, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.10  , clause( 649, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.70/1.10  , clause( 650, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.70/1.10  , clause( 651, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.70/1.10  , clause( 652, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.70/1.10  , clause( 653, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.70/1.10  , clause( 654, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.70/1.10  , clause( 655, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.70/1.10  , clause( 656, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.70/1.10  , clause( 657, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.70/1.10  , clause( 658, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.70/1.10  , clause( 659, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.10  , clause( 660, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.70/1.10  , clause( 661, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.70/1.10    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.70/1.10    , product1( X, Y, 'e_4' ) ] )
% 0.70/1.10  , clause( 662, [ ~( product1( X, Y, Z ) ), ~( product1( X, Y, T ) ), 
% 0.70/1.10    equalish( Z, T ) ] )
% 0.70/1.10  , clause( 663, [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), 
% 0.70/1.10    equalish( Y, T ) ] )
% 0.70/1.10  , clause( 664, [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), 
% 0.70/1.10    equalish( X, T ) ] )
% 0.70/1.10  , clause( 665, [ product1( X, X, X ) ] )
% 0.70/1.10  , clause( 666, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.70/1.10    product2( X, Y, 'e_1' ), product2( X, Y, 'e_2' ), product2( X, Y, 'e_3' )
% 0.70/1.10    , product2( X, Y, 'e_4' ) ] )
% 0.70/1.10  , clause( 667, [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), 
% 0.70/1.10    equalish( Z, T ) ] )
% 0.70/1.10  , clause( 668, [ ~( product2( X, Y, Z ) ), ~( product2( X, T, Z ) ), 
% 0.70/1.10    equalish( Y, T ) ] )
% 0.70/1.10  , clause( 669, [ ~( product2( X, Y, Z ) ), ~( product2( T, Y, Z ) ), 
% 0.70/1.10    equalish( X, T ) ] )
% 0.70/1.10  , clause( 670, [ product2( X, X, X ) ] )
% 0.70/1.10  , clause( 671, [ ~( product1( X, Y, Z ) ), ~( product1( Z, X, T ) ), 
% 0.70/1.10    product2( T, Y, X ) ] )
% 0.70/1.10  ] ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.70/1.10  , clause( 645, [ 'group_element'( 'e_1' ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.70/1.10  , clause( 646, [ 'group_element'( 'e_2' ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 2, [ 'group_element'( 'e_3' ) ] )
% 0.70/1.10  , clause( 647, [ 'group_element'( 'e_3' ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 3, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.10  , clause( 648, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 4, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.70/1.10  , clause( 649, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 6, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.70/1.10  , clause( 651, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 7, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.70/1.10  , clause( 652, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 8, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.70/1.10  , clause( 653, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 9, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.70/1.10  , clause( 654, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 11, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.70/1.10  , clause( 656, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 12, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.70/1.10  , clause( 657, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 13, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.70/1.10  , clause( 658, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 14, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.10  , clause( 659, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 15, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.70/1.10  , clause( 660, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.70/1.10  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  subsumption(
% 0.70/1.10  clause( 16, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), product1( 
% 0.70/1.10    X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' ), ~( 
% 0.70/1.10    'group_element'( Y ) ) ] )
% 0.70/1.10  , clause( 661, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.70/1.10    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.70/1.10    , product1( X, Y, 'e_4' ) ] )
% 0.70/1.10  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.70/1.11     ), ==>( 1, 5 ), ==>( 2, 2 ), ==>( 3, 3 ), ==>( 4, 4 ), ==>( 5, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 18, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X, T
% 0.70/1.11    , Z ) ) ] )
% 0.70/1.11  , clause( 663, [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), 
% 0.70/1.11    equalish( Y, T ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.70/1.11    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 19, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T, Y
% 0.70/1.11    , Z ) ) ] )
% 0.70/1.11  , clause( 664, [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), 
% 0.70/1.11    equalish( X, T ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.70/1.11    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 20, [ product1( X, X, X ) ] )
% 0.70/1.11  , clause( 665, [ product1( X, X, X ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 22, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X, Y
% 0.70/1.11    , T ) ) ] )
% 0.70/1.11  , clause( 667, [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), 
% 0.70/1.11    equalish( Z, T ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.70/1.11    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 25, [ product2( X, X, X ) ] )
% 0.70/1.11  , clause( 670, [ product2( X, X, X ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( Z
% 0.70/1.11    , X, T ) ) ] )
% 0.70/1.11  , clause( 671, [ ~( product1( X, Y, Z ) ), ~( product1( Z, X, T ) ), 
% 0.70/1.11    product2( T, Y, X ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.70/1.11    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 2 ), ==>( 2, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 708, [ ~( 'group_element'( X ) ), product1( X, 'e_1', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_1', 'e_1' ), product1( X, 'e_1', 'e_2' ), product1( X, 
% 0.70/1.11    'e_1', 'e_3' ) ] )
% 0.70/1.11  , clause( 16, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.70/1.11    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.70/1.11    , ~( 'group_element'( Y ) ) ] )
% 0.70/1.11  , 5, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_1' )] ), substitution( 1, [] )
% 0.70/1.11    ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 36, [ product1( X, 'e_1', 'e_4' ), product1( X, 'e_1', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_1', 'e_2' ), product1( X, 'e_1', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , clause( 708, [ ~( 'group_element'( X ) ), product1( X, 'e_1', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_1', 'e_1' ), product1( X, 'e_1', 'e_2' ), product1( X, 
% 0.70/1.11    'e_1', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.70/1.11    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 710, [ ~( 'group_element'( X ) ), product1( X, 'e_2', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_2', 'e_1' ), product1( X, 'e_2', 'e_2' ), product1( X, 
% 0.70/1.11    'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 16, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.70/1.11    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.70/1.11    , ~( 'group_element'( Y ) ) ] )
% 0.70/1.11  , 5, clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_2' )] ), substitution( 1, [] )
% 0.70/1.11    ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 37, [ product1( X, 'e_2', 'e_4' ), product1( X, 'e_2', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_2', 'e_2' ), product1( X, 'e_2', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , clause( 710, [ ~( 'group_element'( X ) ), product1( X, 'e_2', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_2', 'e_1' ), product1( X, 'e_2', 'e_2' ), product1( X, 
% 0.70/1.11    'e_2', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.70/1.11    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 712, [ ~( 'group_element'( X ) ), product1( X, 'e_3', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_3', 'e_1' ), product1( X, 'e_3', 'e_2' ), product1( X, 
% 0.70/1.11    'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 16, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.70/1.11    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.70/1.11    , ~( 'group_element'( Y ) ) ] )
% 0.70/1.11  , 5, clause( 2, [ 'group_element'( 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_3' )] ), substitution( 1, [] )
% 0.70/1.11    ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 38, [ product1( X, 'e_3', 'e_4' ), product1( X, 'e_3', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_3', 'e_2' ), product1( X, 'e_3', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , clause( 712, [ ~( 'group_element'( X ) ), product1( X, 'e_3', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_3', 'e_1' ), product1( X, 'e_3', 'e_2' ), product1( X, 
% 0.70/1.11    'e_3', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.70/1.11    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 714, [ ~( 'group_element'( X ) ), product1( X, 'e_4', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_4', 'e_1' ), product1( X, 'e_4', 'e_2' ), product1( X, 
% 0.70/1.11    'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 16, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.70/1.11    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.70/1.11    , ~( 'group_element'( Y ) ) ] )
% 0.70/1.11  , 5, clause( 3, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_4' )] ), substitution( 1, [] )
% 0.70/1.11    ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 39, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , clause( 714, [ ~( 'group_element'( X ) ), product1( X, 'e_4', 'e_4' ), 
% 0.70/1.11    product1( X, 'e_4', 'e_1' ), product1( X, 'e_4', 'e_2' ), product1( X, 
% 0.70/1.11    'e_4', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.70/1.11    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 716, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , clause( 18, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.70/1.11    , T, Z ) ) ] )
% 0.70/1.11  , 2, clause( 20, [ product1( X, X, X ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, Y ), :=( Y, X ), :=( Z, Y ), :=( T, Y )] ), 
% 0.70/1.11    substitution( 1, [ :=( X, Y )] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , clause( 716, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.70/1.11     ), ==>( 1, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 718, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , clause( 22, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X
% 0.70/1.11    , Y, T ) ) ] )
% 0.70/1.11  , 2, clause( 25, [ product2( X, X, X ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Y ), :=( Z, X ), :=( T, Y )] ), 
% 0.70/1.11    substitution( 1, [ :=( X, Y )] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 44, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , clause( 718, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.70/1.11     ), ==>( 1, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 720, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , clause( 19, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.70/1.11    , Y, Z ) ) ] )
% 0.70/1.11  , 2, clause( 20, [ product1( X, X, X ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Y ), :=( T, Y )] ), 
% 0.70/1.11    substitution( 1, [ :=( X, Y )] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , clause( 720, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.70/1.11     ), ==>( 1, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 721, [ product1( 'e_4', 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 36, [ product1( X, 'e_1', 'e_4' ), product1( X, 'e_1', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_1', 'e_2' ), product1( X, 'e_1', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 3, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_4' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 78, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ), product1( 'e_4', 'e_1', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 721, [ product1( 'e_4', 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 722, [ product1( 'e_1', 'e_2', 'e_4' ), product1( 'e_1', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_2' ), product1( 'e_1', 'e_2', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 37, [ product1( X, 'e_2', 'e_4' ), product1( X, 'e_2', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_2', 'e_2' ), product1( X, 'e_2', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 83, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_2', 'e_3' ), product1( 'e_1', 'e_2', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 722, [ product1( 'e_1', 'e_2', 'e_4' ), product1( 'e_1', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_2' ), product1( 'e_1', 'e_2', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 723, [ product1( 'e_4', 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 37, [ product1( X, 'e_2', 'e_4' ), product1( X, 'e_2', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_2', 'e_2' ), product1( X, 'e_2', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 3, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_4' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 85, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ), product1( 'e_4', 'e_2', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 723, [ product1( 'e_4', 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 724, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 85, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ), product1( 'e_4', 'e_2', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 725, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 9, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 724, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 97, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 725, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 731, [ equalish( X, 'e_4' ), ~( product1( X, 'e_2', 'e_3' ) ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.70/1.11  , clause( 19, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.70/1.11    , Y, Z ) ) ] )
% 0.70/1.11  , 2, clause( 97, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, X ), :=( Y, 'e_2' ), :=( Z, 'e_3' ), :=( T, 
% 0.70/1.11    'e_4' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 99, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( X, 'e_4' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_2' ), ~( product1( X, 'e_2', 'e_3' ) ) ] )
% 0.70/1.11  , clause( 731, [ equalish( X, 'e_4' ), ~( product1( X, 'e_2', 'e_3' ) ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 
% 0.70/1.11    3 ), ==>( 2, 0 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 732, [ product1( 'e_2', 'e_3', 'e_4' ), product1( 'e_2', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 38, [ product1( X, 'e_3', 'e_4' ), product1( X, 'e_3', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_3', 'e_2' ), product1( X, 'e_3', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 103, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_3', 'e_3' ), product1( 'e_2', 'e_3', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 732, [ product1( 'e_2', 'e_3', 'e_4' ), product1( 'e_2', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 733, [ product1( 'e_4', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 38, [ product1( X, 'e_3', 'e_4' ), product1( X, 'e_3', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_3', 'e_2' ), product1( X, 'e_3', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 3, [ 'group_element'( 'e_4' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_4' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 104, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ), product1( 'e_4', 'e_3', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 733, [ product1( 'e_4', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 734, [ product1( 'e_1', 'e_4', 'e_4' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 39, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 0, [ 'group_element'( 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 109, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ), product1( 'e_1', 'e_4', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 734, [ product1( 'e_1', 'e_4', 'e_4' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 735, [ product1( 'e_2', 'e_4', 'e_4' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 39, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 1, [ 'group_element'( 'e_2' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 110, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 735, [ product1( 'e_2', 'e_4', 'e_4' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 736, [ product1( 'e_3', 'e_4', 'e_4' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 39, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.70/1.11    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.70/1.11    'group_element'( X ) ) ] )
% 0.70/1.11  , 4, clause( 2, [ 'group_element'( 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 111, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 736, [ product1( 'e_3', 'e_4', 'e_4' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 737, [ equalish( 'e_1', 'e_4' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 109, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ), product1( 'e_1', 'e_4', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 738, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 6, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 737, [ equalish( 'e_1', 'e_4' ), product1( 'e_1', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 113, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 738, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 744, [ equalish( X, 'e_1' ), ~( product1( X, 'e_4', 'e_3' ) ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 19, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.70/1.11    , Y, Z ) ) ] )
% 0.70/1.11  , 2, clause( 113, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, X ), :=( Y, 'e_4' ), :=( Z, 'e_3' ), :=( T, 
% 0.70/1.11    'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 115, [ product1( 'e_1', 'e_4', 'e_1' ), equalish( X, 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_2' ), ~( product1( X, 'e_4', 'e_3' ) ) ] )
% 0.70/1.11  , clause( 744, [ equalish( X, 'e_1' ), ~( product1( X, 'e_4', 'e_3' ) ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 
% 0.70/1.11    3 ), ==>( 2, 0 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 745, [ equalish( 'e_2', 'e_4' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 110, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 746, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 9, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 745, [ equalish( 'e_2', 'e_4' ), product1( 'e_2', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 179, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 746, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 747, [ product1( 'e_1', 'e_4', 'e_1' ), equalish( 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 115, [ product1( 'e_1', 'e_4', 'e_1' ), equalish( X, 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_2' ), ~( product1( X, 'e_4', 'e_3' ) ) ] )
% 0.70/1.11  , 3, clause( 179, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 748, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 7, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.70/1.11  , 0, clause( 747, [ product1( 'e_1', 'e_4', 'e_1' ), equalish( 'e_2', 'e_1'
% 0.70/1.11     ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 180, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 748, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2
% 0.70/1.11    , 0 ), ==>( 3, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 754, [ ~( product1( 'e_4', X, 'e_2' ) ), product2( 'e_3', X, 'e_4'
% 0.70/1.11     ), product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.70/1.11    Z, X, T ) ) ] )
% 0.70/1.11  , 2, clause( 179, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_2' ), :=( T, 
% 0.70/1.11    'e_3' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 181, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product2( 'e_3', X, 'e_4' ), ~( product1( 'e_4', X, 'e_2' ) ) ]
% 0.70/1.11     )
% 0.70/1.11  , clause( 754, [ ~( product1( 'e_4', X, 'e_2' ) ), product2( 'e_3', X, 
% 0.70/1.11    'e_4' ), product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 
% 0.70/1.11    2 ), ==>( 2, 0 ), ==>( 3, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 756, [ equalish( 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 180, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_1', 'e_4'
% 0.70/1.11    , 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_2'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 757, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 14, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.11  , 0, clause( 756, [ equalish( 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 189, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 757, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 763, [ ~( product1( 'e_4', X, 'e_1' ) ), product2( 'e_2', X, 'e_4'
% 0.70/1.11     ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.70/1.11    Z, X, T ) ) ] )
% 0.70/1.11  , 2, clause( 189, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_1' ), :=( T, 
% 0.70/1.11    'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 190, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product2( 'e_2', X, 'e_4' ), ~( product1( 'e_4', X, 'e_1' ) ) ]
% 0.70/1.11     )
% 0.70/1.11  , clause( 763, [ ~( product1( 'e_4', X, 'e_1' ) ), product2( 'e_2', X, 
% 0.70/1.11    'e_4' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_1' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 
% 0.70/1.11    2 ), ==>( 2, 0 ), ==>( 3, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 764, [ equalish( 'e_3', 'e_4' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 111, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 765, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 12, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 764, [ equalish( 'e_3', 'e_4' ), product1( 'e_3', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 195, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , clause( 765, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 766, [ equalish( 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_3', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 195, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 767, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , clause( 15, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.70/1.11  , 0, clause( 766, [ equalish( 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_3', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 201, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , clause( 767, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 771, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_2', X, 'e_4'
% 0.70/1.11     ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.70/1.11    Z, X, T ) ) ] )
% 0.70/1.11  , 2, clause( 201, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.70/1.11    , 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_3' ), :=( T, 
% 0.70/1.11    'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 203, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', X, 'e_4' )
% 0.70/1.11    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.70/1.11  , clause( 771, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_2', X, 
% 0.70/1.11    'e_4' ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.70/1.11    1 ), ==>( 2, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 772, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', 'e_2', 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 203, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', X, 'e_4'
% 0.70/1.11     ), ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.70/1.11  , 2, clause( 97, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 211, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product2( 'e_2', 'e_2', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 772, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', 'e_2', 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 3 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 773, [ equalish( 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.70/1.11  , clause( 44, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , 1, clause( 211, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product2( 'e_2', 'e_2', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 774, [ equalish( 'e_4', 'e_2' ), equalish( 'e_4', 'e_2' ), product1( 
% 0.70/1.11    'e_3', 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 773, [ equalish( 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 775, [ equalish( 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 774, [ equalish( 'e_4', 'e_2' ), equalish( 'e_4', 'e_2' ), 
% 0.70/1.11    product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 0, 1, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 219, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_2' ), 
% 0.70/1.11    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 775, [ equalish( 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_1' )
% 0.70/1.11    , product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2
% 0.70/1.11    , 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 776, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 14, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.11  , 0, clause( 219, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_2'
% 0.70/1.11     ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 223, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 776, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 780, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_1', X, 'e_4'
% 0.70/1.11     ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.70/1.11    Z, X, T ) ) ] )
% 0.70/1.11  , 2, clause( 223, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4'
% 0.70/1.11    , 'e_1' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_3' ), :=( T, 
% 0.70/1.11    'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 224, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', X, 'e_4' )
% 0.70/1.11    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.70/1.11  , clause( 780, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_1', X, 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.70/1.11    1 ), ==>( 2, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 781, [ equalish( 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 78, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ), product1( 'e_4', 'e_1', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 782, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.70/1.11  , clause( 6, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 781, [ equalish( 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 236, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.70/1.11  , clause( 782, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 783, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 224, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', X, 'e_4'
% 0.70/1.11     ), ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.70/1.11  , 2, clause( 236, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 237, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product2( 'e_1', 'e_1', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 783, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 3 ), ==>( 2
% 0.70/1.11    , 0 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 784, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_1', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , clause( 44, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , 1, clause( 237, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product2( 'e_1', 'e_1', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 785, [ equalish( 'e_4', 'e_1' ), equalish( 'e_4', 'e_1' ), product1( 
% 0.70/1.11    'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 784, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_1', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 786, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , clause( 785, [ equalish( 'e_4', 'e_1' ), equalish( 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , 0, 1, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 265, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , clause( 786, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' )
% 0.70/1.11    , product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 787, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , clause( 13, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.70/1.11  , 0, clause( 265, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 269, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , clause( 787, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 791, [ ~( product1( 'e_1', X, 'e_4' ) ), product2( 'e_2', X, 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.70/1.11    Z, X, T ) ) ] )
% 0.70/1.11  , 2, clause( 269, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1'
% 0.70/1.11    , 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_1' ), :=( Y, X ), :=( Z, 'e_4' ), :=( T, 
% 0.70/1.11    'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 270, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_2', X, 'e_1' )
% 0.70/1.11    , ~( product1( 'e_1', X, 'e_4' ) ) ] )
% 0.70/1.11  , clause( 791, [ ~( product1( 'e_1', X, 'e_4' ) ), product2( 'e_2', X, 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.70/1.11    1 ), ==>( 2, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 795, [ equalish( X, 'e_1' ), ~( product1( 'e_4', X, 'e_2' ) ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 18, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.70/1.11    , T, Z ) ) ] )
% 0.70/1.11  , 2, clause( 269, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1'
% 0.70/1.11    , 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_2' ), :=( T, 
% 0.70/1.11    'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 272, [ equalish( X, 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ), ~( 
% 0.70/1.11    product1( 'e_4', X, 'e_2' ) ) ] )
% 0.70/1.11  , clause( 795, [ equalish( X, 'e_1' ), ~( product1( 'e_4', X, 'e_2' ) ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.70/1.11    2 ), ==>( 2, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 796, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_2', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_2' )
% 0.70/1.11    , product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 270, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_2', X, 'e_1'
% 0.70/1.11     ), ~( product1( 'e_1', X, 'e_4' ) ) ] )
% 0.70/1.11  , 2, clause( 83, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2'
% 0.70/1.11    , 'e_2' ), product1( 'e_1', 'e_2', 'e_3' ), product1( 'e_1', 'e_2', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 275, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_2' ), product1( 'e_1', 'e_2', 'e_3' )
% 0.70/1.11    , product2( 'e_2', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 796, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_2', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_2' )
% 0.70/1.11    , product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 4 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 797, [ equalish( 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 104, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ), product1( 'e_4', 'e_3', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 798, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 12, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 797, [ equalish( 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 288, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 798, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 799, [ equalish( 'e_4', 'e_3' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_2' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 288, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 800, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , clause( 15, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.70/1.11  , 0, clause( 799, [ equalish( 'e_4', 'e_3' ), product1( 'e_4', 'e_3', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_3', 'e_2' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 294, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , clause( 800, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 804, [ equalish( X, 'e_4' ), ~( product1( X, 'e_3', 'e_2' ) ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 19, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.70/1.11    , Y, Z ) ) ] )
% 0.70/1.11  , 2, clause( 294, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, X ), :=( Y, 'e_3' ), :=( Z, 'e_2' ), :=( T, 
% 0.70/1.11    'e_4' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 298, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.70/1.11    product1( X, 'e_3', 'e_2' ) ) ] )
% 0.70/1.11  , clause( 804, [ equalish( X, 'e_4' ), ~( product1( X, 'e_3', 'e_2' ) ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.70/1.11    2 ), ==>( 2, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 805, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product2( 'e_3', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 181, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product2( 'e_3', X, 'e_4' ), ~( product1( 'e_4', X, 'e_2' ) ) ]
% 0.70/1.11     )
% 0.70/1.11  , 3, clause( 294, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 319, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_3', 'e_3', 'e_4' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 805, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product2( 'e_3', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 3 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 806, [ equalish( 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 44, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , 1, clause( 319, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_3', 'e_3', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 807, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 15, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.70/1.11  , 0, clause( 806, [ equalish( 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 323, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , clause( 807, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 2 ), ==>( 2
% 0.70/1.11    , 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 808, [ equalish( 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 323, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 809, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 14, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.11  , 0, clause( 808, [ equalish( 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 329, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 809, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 813, [ ~( product1( 'e_4', X, 'e_2' ) ), product2( 'e_1', X, 'e_4'
% 0.70/1.11     ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.70/1.11    Z, X, T ) ) ] )
% 0.70/1.11  , 2, clause( 329, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_1' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_2' ), :=( T, 
% 0.70/1.11    'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 333, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', X, 'e_4' )
% 0.70/1.11    , ~( product1( 'e_4', X, 'e_2' ) ) ] )
% 0.70/1.11  , clause( 813, [ ~( product1( 'e_4', X, 'e_2' ) ), product2( 'e_1', X, 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.70/1.11    1 ), ==>( 2, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 814, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', 'e_3', 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 333, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', X, 'e_4'
% 0.70/1.11     ), ~( product1( 'e_4', X, 'e_2' ) ) ] )
% 0.70/1.11  , 2, clause( 294, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_2' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 815, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', 'e_3', 
% 0.70/1.11    'e_4' ) ] )
% 0.70/1.11  , clause( 814, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', 'e_3', 
% 0.70/1.11    'e_4' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , 0, 2, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 338, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', 'e_3', 
% 0.70/1.11    'e_4' ) ] )
% 0.70/1.11  , clause( 815, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', 'e_3', 
% 0.70/1.11    'e_4' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 817, [ equalish( X, 'e_4' ), ~( product2( 'e_1', 'e_3', X ) ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 22, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X
% 0.70/1.11    , Y, T ) ) ] )
% 0.70/1.11  , 2, clause( 338, [ product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_1', 'e_3'
% 0.70/1.11    , 'e_4' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_3' ), :=( Z, X ), :=( T, 
% 0.70/1.11    'e_4' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 340, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.70/1.11    product2( 'e_1', 'e_3', X ) ) ] )
% 0.70/1.11  , clause( 817, [ equalish( X, 'e_4' ), ~( product2( 'e_1', 'e_3', X ) ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.70/1.11    2 ), ==>( 2, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 818, [ equalish( 'e_1', 'e_2' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_2' ), 
% 0.70/1.11    product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 44, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , 1, clause( 275, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_1', 'e_2'
% 0.70/1.11    , 'e_1' ), product1( 'e_1', 'e_2', 'e_2' ), product1( 'e_1', 'e_2', 'e_3'
% 0.70/1.11     ), product2( 'e_2', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 4, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 819, [ equalish( 'e_1', 'e_2' ), equalish( 'e_1', 'e_2' ), product1( 
% 0.70/1.11    'e_4', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 
% 0.70/1.11    'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 818, [ equalish( 'e_1', 'e_2' ), product1( 'e_4', 'e_2', 'e_1'
% 0.70/1.11     ), product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_2' ), 
% 0.70/1.11    product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 820, [ equalish( 'e_1', 'e_2' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 819, [ equalish( 'e_1', 'e_2' ), equalish( 'e_1', 'e_2' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , 0, 1, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 568, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), equalish( 'e_1', 'e_2' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 820, [ equalish( 'e_1', 'e_2' ), product1( 'e_4', 'e_2', 'e_1' )
% 0.70/1.11    , product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 0 ), ==>( 3, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 821, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 4, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.70/1.11  , 0, clause( 568, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_1' ), equalish( 'e_1', 'e_2' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 572, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , clause( 821, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 822, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_1', 'e_4' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_1', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 99, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( X, 'e_4' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_2' ), ~( product1( X, 'e_2', 'e_3' ) ) ] )
% 0.70/1.11  , 3, clause( 572, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_1' ), product1( 'e_1', 'e_2', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 824, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 6, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 822, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_1', 'e_4'
% 0.70/1.11     ), product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_1', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 825, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 824, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' )
% 0.70/1.11     ] )
% 0.70/1.11  , 0, 3, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 574, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.70/1.11  , clause( 825, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.70/1.11    'e_2' ), product1( 'e_1', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2
% 0.70/1.11    , 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 826, [ equalish( 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 272, [ equalish( X, 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ), ~( 
% 0.70/1.11    product1( 'e_4', X, 'e_2' ) ) ] )
% 0.70/1.11  , 2, clause( 574, [ product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.70/1.11    , 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 828, [ equalish( 'e_2', 'e_1' ), equalish( 'e_2', 'e_1' ), product1( 
% 0.70/1.11    'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 826, [ equalish( 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1'
% 0.70/1.11     ), product1( 'e_1', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 830, [ equalish( 'e_2', 'e_1' ), equalish( 'e_2', 'e_1' ), product1( 
% 0.70/1.11    'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 828, [ equalish( 'e_2', 'e_1' ), equalish( 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 2, 3, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 831, [ equalish( 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ]
% 0.70/1.11     )
% 0.70/1.11  , clause( 830, [ equalish( 'e_2', 'e_1' ), equalish( 'e_2', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 0, 1, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 580, [ equalish( 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ) ]
% 0.70/1.11     )
% 0.70/1.11  , clause( 831, [ equalish( 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 832, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 7, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.70/1.11  , 0, clause( 580, [ equalish( 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_1'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 583, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , clause( 832, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 833, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product2( 'e_2', 'e_2', 'e_4' ) ] )
% 0.70/1.11  , clause( 190, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product2( 'e_2', X, 'e_4' ), ~( product1( 'e_4', X, 'e_1' ) ) ]
% 0.70/1.11     )
% 0.70/1.11  , 3, clause( 583, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 590, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product2( 'e_2', 'e_2', 'e_4' ) ] )
% 0.70/1.11  , clause( 833, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ), product2( 'e_2', 'e_2', 'e_4' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 835, [ ~( product1( 'e_2', X, 'e_4' ) ), product2( 'e_1', X, 'e_2'
% 0.70/1.11     ) ] )
% 0.70/1.11  , clause( 26, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.70/1.11    Z, X, T ) ) ] )
% 0.70/1.11  , 2, clause( 583, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_2' ), :=( Y, X ), :=( Z, 'e_4' ), :=( T, 
% 0.70/1.11    'e_1' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 591, [ product2( 'e_1', X, 'e_2' ), ~( product1( 'e_2', X, 'e_4' )
% 0.70/1.11     ) ] )
% 0.70/1.11  , clause( 835, [ ~( product1( 'e_2', X, 'e_4' ) ), product2( 'e_1', X, 
% 0.70/1.11    'e_2' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 
% 0.70/1.11    0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 837, [ equalish( X, 'e_2' ), ~( product1( 'e_4', X, 'e_1' ) ) ] )
% 0.70/1.11  , clause( 18, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.70/1.11    , T, Z ) ) ] )
% 0.70/1.11  , 2, clause( 583, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_1' ), :=( T, 
% 0.70/1.11    'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 593, [ equalish( X, 'e_2' ), ~( product1( 'e_4', X, 'e_1' ) ) ] )
% 0.70/1.11  , clause( 837, [ equalish( X, 'e_2' ), ~( product1( 'e_4', X, 'e_1' ) ) ]
% 0.70/1.11     )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.70/1.11    1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 838, [ product2( 'e_1', 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 591, [ product2( 'e_1', X, 'e_2' ), ~( product1( 'e_2', X, 'e_4'
% 0.70/1.11     ) ) ] )
% 0.70/1.11  , 1, clause( 103, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3'
% 0.70/1.11    , 'e_2' ), product1( 'e_2', 'e_3', 'e_3' ), product1( 'e_2', 'e_3', 'e_4'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 598, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 
% 0.70/1.11    'e_2' ), product1( 'e_2', 'e_3', 'e_3' ), product2( 'e_1', 'e_3', 'e_2' )
% 0.70/1.11     ] )
% 0.70/1.11  , clause( 838, [ product2( 'e_1', 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 'e_3' )
% 0.70/1.11     ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.70/1.11    , 1 ), ==>( 3, 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 839, [ equalish( 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.70/1.11    product1( 'e_2', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 44, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.70/1.11  , 1, clause( 590, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_1' ), product2( 'e_2', 'e_2', 'e_4' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 840, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 14, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.70/1.11  , 0, clause( 839, [ equalish( 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_1'
% 0.70/1.11     ), product1( 'e_2', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 609, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 840, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 844, [ equalish( X, 'e_4' ), ~( product1( 'e_2', X, 'e_1' ) ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 18, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.70/1.11    , T, Z ) ) ] )
% 0.70/1.11  , 2, clause( 609, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.70/1.11    , 'e_1' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_2' ), :=( Y, X ), :=( Z, 'e_1' ), :=( T, 
% 0.70/1.11    'e_4' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 614, [ equalish( X, 'e_4' ), product1( 'e_1', 'e_4', 'e_1' ), ~( 
% 0.70/1.11    product1( 'e_2', X, 'e_1' ) ) ] )
% 0.70/1.11  , clause( 844, [ equalish( X, 'e_4' ), ~( product1( 'e_2', X, 'e_1' ) ), 
% 0.70/1.11    product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.70/1.11    2 ), ==>( 2, 1 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 845, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.70/1.11    product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_2' ), 
% 0.70/1.11    product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 340, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.70/1.11    product2( 'e_1', 'e_3', X ) ) ] )
% 0.70/1.11  , 2, clause( 598, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3'
% 0.70/1.11    , 'e_2' ), product1( 'e_2', 'e_3', 'e_3' ), product2( 'e_1', 'e_3', 'e_2'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 846, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.70/1.11    equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), product1( 
% 0.70/1.11    'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 298, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.70/1.11    product1( X, 'e_3', 'e_2' ) ) ] )
% 0.70/1.11  , 2, clause( 845, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1'
% 0.70/1.11     ), product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_2' ), 
% 0.70/1.11    product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , 3, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 848, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.70/1.11    equalish( 'e_2', 'e_4' ), product1( 'e_2', 'e_3', 'e_1' ), product1( 
% 0.70/1.11    'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 846, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' )
% 0.70/1.11    , equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), product1( 
% 0.70/1.11    'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , 1, 3, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  factor(
% 0.70/1.11  clause( 849, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.70/1.11    product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 848, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' )
% 0.70/1.11    , equalish( 'e_2', 'e_4' ), product1( 'e_2', 'e_3', 'e_1' ), product1( 
% 0.70/1.11    'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , 0, 2, substitution( 0, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 621, [ product1( 'e_2', 'e_3', 'e_1' ), equalish( 'e_2', 'e_4' ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 849, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' )
% 0.70/1.11    , product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2
% 0.70/1.11    , 0 ), ==>( 3, 3 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 850, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 9, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 621, [ product1( 'e_2', 'e_3', 'e_1' ), equalish( 'e_2', 'e_4'
% 0.70/1.11     ), product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 627, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , clause( 850, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.70/1.11    , 2 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 851, [ equalish( 'e_2', 'e_3' ), product1( 'e_2', 'e_3', 'e_1' ), 
% 0.70/1.11    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 45, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.70/1.11  , 1, clause( 627, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_1' ), product1( 'e_2', 'e_3', 'e_3' ) ] )
% 0.70/1.11  , 2, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 852, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 8, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.70/1.11  , 0, clause( 851, [ equalish( 'e_2', 'e_3' ), product1( 'e_2', 'e_3', 'e_1'
% 0.70/1.11     ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 631, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , clause( 852, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.70/1.11    'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.70/1.11     ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 853, [ equalish( 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 'e_1' ) ]
% 0.70/1.11     )
% 0.70/1.11  , clause( 593, [ equalish( X, 'e_2' ), ~( product1( 'e_4', X, 'e_1' ) ) ]
% 0.70/1.11     )
% 0.70/1.11  , 1, clause( 631, [ product1( 'e_2', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.70/1.11    , 'e_1' ) ] )
% 0.70/1.11  , 1, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 854, [ product1( 'e_2', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 11, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.70/1.11  , 0, clause( 853, [ equalish( 'e_3', 'e_2' ), product1( 'e_2', 'e_3', 'e_1'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 632, [ product1( 'e_2', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , clause( 854, [ product1( 'e_2', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 855, [ equalish( 'e_3', 'e_4' ), product1( 'e_1', 'e_4', 'e_1' ) ]
% 0.70/1.11     )
% 0.70/1.11  , clause( 614, [ equalish( X, 'e_4' ), product1( 'e_1', 'e_4', 'e_1' ), ~( 
% 0.70/1.11    product1( 'e_2', X, 'e_1' ) ) ] )
% 0.70/1.11  , 2, clause( 632, [ product1( 'e_2', 'e_3', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 856, [ product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 12, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.70/1.11  , 0, clause( 855, [ equalish( 'e_3', 'e_4' ), product1( 'e_1', 'e_4', 'e_1'
% 0.70/1.11     ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 633, [ product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 856, [ product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 857, [ equalish( 'e_4', 'e_1' ) ] )
% 0.70/1.11  , clause( 42, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.70/1.11  , 1, clause( 633, [ product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.70/1.11    , [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  resolution(
% 0.70/1.11  clause( 858, [] )
% 0.70/1.11  , clause( 13, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.70/1.11  , 0, clause( 857, [ equalish( 'e_4', 'e_1' ) ] )
% 0.70/1.11  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  subsumption(
% 0.70/1.11  clause( 643, [] )
% 0.70/1.11  , clause( 858, [] )
% 0.70/1.11  , substitution( 0, [] ), permutation( 0, [] ) ).
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  end.
% 0.70/1.11  
% 0.70/1.11  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.70/1.11  
% 0.70/1.11  Memory use:
% 0.70/1.11  
% 0.70/1.11  space for terms:        11831
% 0.70/1.11  space for clauses:      27766
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  clauses generated:      1635
% 0.70/1.11  clauses kept:           644
% 0.70/1.11  clauses selected:       363
% 0.70/1.11  clauses deleted:        110
% 0.70/1.11  clauses inuse deleted:  0
% 0.70/1.11  
% 0.70/1.11  subsentry:          3696
% 0.70/1.11  literals s-matched: 2667
% 0.70/1.11  literals matched:   2340
% 0.70/1.11  full subsumption:   36
% 0.70/1.11  
% 0.70/1.11  checksum:           -1984677647
% 0.70/1.11  
% 0.70/1.11  
% 0.70/1.11  Bliksem ended
%------------------------------------------------------------------------------