TSTP Solution File: GRP124-7.004 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : GRP124-7.004 : TPTP v8.1.0. Released v1.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n023.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 07:35:06 EDT 2022

% Result   : Unsatisfiable 0.46s 1.15s
% Output   : Refutation 0.46s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : GRP124-7.004 : TPTP v8.1.0. Released v1.2.0.
% 0.07/0.14  % Command  : bliksem %s
% 0.13/0.35  % Computer : n023.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % DateTime : Mon Jun 13 22:59:21 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.46/1.15  *** allocated 10000 integers for termspace/termends
% 0.46/1.15  *** allocated 10000 integers for clauses
% 0.46/1.15  *** allocated 10000 integers for justifications
% 0.46/1.15  Bliksem 1.12
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  Automatic Strategy Selection
% 0.46/1.15  
% 0.46/1.15  Clauses:
% 0.46/1.15  [
% 0.46/1.15     [ next( 'e_1', 'e_2' ) ],
% 0.46/1.15     [ next( 'e_2', 'e_3' ) ],
% 0.46/1.15     [ next( 'e_3', 'e_4' ) ],
% 0.46/1.15     [ greater( 'e_2', 'e_1' ) ],
% 0.46/1.15     [ greater( 'e_3', 'e_1' ) ],
% 0.46/1.15     [ greater( 'e_4', 'e_1' ) ],
% 0.46/1.15     [ greater( 'e_3', 'e_2' ) ],
% 0.46/1.15     [ greater( 'e_4', 'e_2' ) ],
% 0.46/1.15     [ greater( 'e_4', 'e_3' ) ],
% 0.46/1.15     [ ~( product( X, 'e_1', Y ) ), ~( next( X, Z ) ), ~( greater( Y, Z ) ) ]
% 0.46/1.15    ,
% 0.46/1.15     [ 'group_element'( 'e_1' ) ],
% 0.46/1.15     [ 'group_element'( 'e_2' ) ],
% 0.46/1.15     [ 'group_element'( 'e_3' ) ],
% 0.46/1.15     [ 'group_element'( 'e_4' ) ],
% 0.46/1.15     [ ~( equalish( 'e_1', 'e_2' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_1', 'e_3' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_1', 'e_4' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_2', 'e_1' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_2', 'e_3' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_2', 'e_4' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_3', 'e_1' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_3', 'e_2' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_3', 'e_4' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_4', 'e_1' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_4', 'e_2' ) ) ],
% 0.46/1.15     [ ~( equalish( 'e_4', 'e_3' ) ) ],
% 0.46/1.15     [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product1( X, Y, 
% 0.46/1.15    'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' ), product1( X, Y
% 0.46/1.15    , 'e_4' ) ],
% 0.46/1.15     [ ~( product1( X, Y, Z ) ), ~( product1( X, Y, T ) ), equalish( Z, T ) ]
% 0.46/1.15    ,
% 0.46/1.15     [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), equalish( Y, T ) ]
% 0.46/1.15    ,
% 0.46/1.15     [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), equalish( X, T ) ]
% 0.46/1.15    ,
% 0.46/1.15     [ product1( X, X, X ) ],
% 0.46/1.15     [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), product2( X, Y, 
% 0.46/1.15    'e_1' ), product2( X, Y, 'e_2' ), product2( X, Y, 'e_3' ), product2( X, Y
% 0.46/1.15    , 'e_4' ) ],
% 0.46/1.15     [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), equalish( Z, T ) ]
% 0.46/1.15    ,
% 0.46/1.15     [ ~( product2( X, Y, Z ) ), ~( product2( X, T, Z ) ), equalish( Y, T ) ]
% 0.46/1.15    ,
% 0.46/1.15     [ ~( product2( X, Y, Z ) ), ~( product2( T, Y, Z ) ), equalish( X, T ) ]
% 0.46/1.15    ,
% 0.46/1.15     [ product2( X, X, X ) ],
% 0.46/1.15     [ ~( product1( X, Y, Z ) ), ~( product1( Z, X, T ) ), product2( T, Y, X
% 0.46/1.15     ) ]
% 0.46/1.15  ] .
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  percentage equality = 0.000000, percentage horn = 0.945946
% 0.46/1.15  This is a near-Horn, non-equality  problem
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  Options Used:
% 0.46/1.15  
% 0.46/1.15  useres =            1
% 0.46/1.15  useparamod =        0
% 0.46/1.15  useeqrefl =         0
% 0.46/1.15  useeqfact =         0
% 0.46/1.15  usefactor =         1
% 0.46/1.15  usesimpsplitting =  0
% 0.46/1.15  usesimpdemod =      0
% 0.46/1.15  usesimpres =        4
% 0.46/1.15  
% 0.46/1.15  resimpinuse      =  1000
% 0.46/1.15  resimpclauses =     20000
% 0.46/1.15  substype =          standard
% 0.46/1.15  backwardsubs =      1
% 0.46/1.15  selectoldest =      5
% 0.46/1.15  
% 0.46/1.15  litorderings [0] =  split
% 0.46/1.15  litorderings [1] =  liftord
% 0.46/1.15  
% 0.46/1.15  termordering =      none
% 0.46/1.15  
% 0.46/1.15  litapriori =        1
% 0.46/1.15  termapriori =       0
% 0.46/1.15  litaposteriori =    0
% 0.46/1.15  termaposteriori =   0
% 0.46/1.15  demodaposteriori =  0
% 0.46/1.15  ordereqreflfact =   0
% 0.46/1.15  
% 0.46/1.15  litselect =         negative
% 0.46/1.15  
% 0.46/1.15  maxweight =         30000
% 0.46/1.15  maxdepth =          30000
% 0.46/1.15  maxlength =         115
% 0.46/1.15  maxnrvars =         195
% 0.46/1.15  excuselevel =       0
% 0.46/1.15  increasemaxweight = 0
% 0.46/1.15  
% 0.46/1.15  maxselected =       10000000
% 0.46/1.15  maxnrclauses =      10000000
% 0.46/1.15  
% 0.46/1.15  showgenerated =    0
% 0.46/1.15  showkept =         0
% 0.46/1.15  showselected =     0
% 0.46/1.15  showdeleted =      0
% 0.46/1.15  showresimp =       1
% 0.46/1.15  showstatus =       2000
% 0.46/1.15  
% 0.46/1.15  prologoutput =     1
% 0.46/1.15  nrgoals =          5000000
% 0.46/1.15  totalproof =       1
% 0.46/1.15  
% 0.46/1.15  Symbols occurring in the translation:
% 0.46/1.15  
% 0.46/1.15  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.46/1.15  .  [1, 2]      (w:1, o:26, a:1, s:1, b:0), 
% 0.46/1.15  !  [4, 1]      (w:1, o:20, a:1, s:1, b:0), 
% 0.46/1.15  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.46/1.15  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.46/1.15  'e_1'  [39, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.46/1.15  'e_2'  [40, 0]      (w:1, o:10, a:1, s:1, b:0), 
% 0.46/1.15  next  [41, 2]      (w:1, o:51, a:1, s:1, b:0), 
% 0.46/1.15  'e_3'  [42, 0]      (w:1, o:11, a:1, s:1, b:0), 
% 0.46/1.15  'e_4'  [43, 0]      (w:1, o:12, a:1, s:1, b:0), 
% 0.46/1.15  greater  [44, 2]      (w:1, o:52, a:1, s:1, b:0), 
% 0.46/1.15  product  [47, 3]      (w:1, o:54, a:1, s:1, b:0), 
% 0.46/1.15  'group_element'  [49, 1]      (w:1, o:25, a:1, s:1, b:0), 
% 0.46/1.15  equalish  [50, 2]      (w:1, o:53, a:1, s:1, b:0), 
% 0.46/1.15  product1  [51, 3]      (w:1, o:55, a:1, s:1, b:0), 
% 0.46/1.15  product2  [54, 3]      (w:1, o:56, a:1, s:1, b:0).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  Starting Search:
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  Bliksems!, er is een bewijs:
% 0.46/1.15  % SZS status Unsatisfiable
% 0.46/1.15  % SZS output start Refutation
% 0.46/1.15  
% 0.46/1.15  clause( 10, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 11, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 12, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 13, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 14, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 15, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 16, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 18, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 19, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 20, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 21, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 22, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 23, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 24, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 25, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 26, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), product1( 
% 0.46/1.15    X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' ), ~( 
% 0.46/1.15    'group_element'( Y ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 28, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X, T
% 0.46/1.15    , Z ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 29, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T, Y
% 0.46/1.15    , Z ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 30, [ product1( X, X, X ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 32, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X, Y
% 0.46/1.15    , T ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 35, [ product2( X, X, X ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 36, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( Z
% 0.46/1.15    , X, T ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 49, [ product1( X, 'e_1', 'e_4' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_1', 'e_2' ), product1( X, 'e_1', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 50, [ product1( X, 'e_2', 'e_4' ), product1( X, 'e_2', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_2', 'e_2' ), product1( X, 'e_2', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 51, [ product1( X, 'e_3', 'e_4' ), product1( X, 'e_3', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_3', 'e_2' ), product1( X, 'e_3', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 52, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 65, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 91, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 92, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ), product1( 'e_4', 'e_1', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 97, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_4', X, 'e_1' ), 
% 0.46/1.15    ~( product1( 'e_1', X, 'e_3' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 104, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 111, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ), product1( 'e_4', 'e_2', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 118, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ), product1( 'e_4', 'e_3', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 130, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 133, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 134, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ), product1( 'e_1', 'e_4', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 135, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 136, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 220, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 226, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 228, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product2( 'e_3', X, 'e_4' ), ~( product1( 'e_4', X, 'e_2' ) ) ]
% 0.46/1.15     )
% 0.46/1.15  .
% 0.46/1.15  clause( 244, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 250, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 253, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', X, 'e_4' )
% 0.46/1.15    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 254, [ equalish( X, 'e_3' ), product1( 'e_3', 'e_4', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 255, [ equalish( X, 'e_4' ), product1( 'e_3', 'e_4', 'e_1' ), ~( 
% 0.46/1.15    product1( 'e_3', X, 'e_2' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 262, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_1', 'e_4', 'e_1' )
% 0.46/1.15    , product1( 'e_1', 'e_4', 'e_2' ), product2( 'e_4', 'e_4', 'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 276, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 277, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product2( 'e_2', 'e_2', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 286, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_2' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 290, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 291, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', X, 'e_4' )
% 0.46/1.15    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 296, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product2( 'e_1', 'e_1', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 305, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 309, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 312, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 336, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_3', 'e_3', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 344, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 350, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 355, [ equalish( X, 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 530, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' )
% 0.46/1.15    , product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 535, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_1', 'e_4', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 536, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 542, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 543, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 552, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 555, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_1', X, 'e_3' )
% 0.46/1.15    , ~( product1( 'e_3', X, 'e_4' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 557, [ equalish( X, 'e_3' ), product1( 'e_3', 'e_1', 'e_1' ), ~( 
% 0.46/1.15    product1( 'e_4', X, 'e_1' ) ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 565, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_1', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 616, [ product1( 'e_3', 'e_1', 'e_2' ), equalish( 'e_3', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 620, [ product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_3' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 625, [ product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 630, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 637, [ product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  .
% 0.46/1.15  clause( 652, [] )
% 0.46/1.15  .
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  % SZS output end Refutation
% 0.46/1.15  found a proof!
% 0.46/1.15  
% 0.46/1.15  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.46/1.15  
% 0.46/1.15  initialclauses(
% 0.46/1.15  [ clause( 654, [ next( 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 655, [ next( 'e_2', 'e_3' ) ] )
% 0.46/1.15  , clause( 656, [ next( 'e_3', 'e_4' ) ] )
% 0.46/1.15  , clause( 657, [ greater( 'e_2', 'e_1' ) ] )
% 0.46/1.15  , clause( 658, [ greater( 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 659, [ greater( 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 660, [ greater( 'e_3', 'e_2' ) ] )
% 0.46/1.15  , clause( 661, [ greater( 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 662, [ greater( 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 663, [ ~( product( X, 'e_1', Y ) ), ~( next( X, Z ) ), ~( greater( 
% 0.46/1.15    Y, Z ) ) ] )
% 0.46/1.15  , clause( 664, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.15  , clause( 665, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.15  , clause( 666, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.15  , clause( 667, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  , clause( 668, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 669, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.15  , clause( 670, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  , clause( 671, [ ~( equalish( 'e_2', 'e_1' ) ) ] )
% 0.46/1.15  , clause( 672, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.46/1.15  , clause( 673, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.46/1.15  , clause( 674, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.15  , clause( 675, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 676, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.46/1.15  , clause( 677, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  , clause( 678, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 679, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.46/1.15  , clause( 680, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.46/1.15    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.15    , product1( X, Y, 'e_4' ) ] )
% 0.46/1.15  , clause( 681, [ ~( product1( X, Y, Z ) ), ~( product1( X, Y, T ) ), 
% 0.46/1.15    equalish( Z, T ) ] )
% 0.46/1.15  , clause( 682, [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), 
% 0.46/1.15    equalish( Y, T ) ] )
% 0.46/1.15  , clause( 683, [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), 
% 0.46/1.15    equalish( X, T ) ] )
% 0.46/1.15  , clause( 684, [ product1( X, X, X ) ] )
% 0.46/1.15  , clause( 685, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.46/1.15    product2( X, Y, 'e_1' ), product2( X, Y, 'e_2' ), product2( X, Y, 'e_3' )
% 0.46/1.15    , product2( X, Y, 'e_4' ) ] )
% 0.46/1.15  , clause( 686, [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), 
% 0.46/1.15    equalish( Z, T ) ] )
% 0.46/1.15  , clause( 687, [ ~( product2( X, Y, Z ) ), ~( product2( X, T, Z ) ), 
% 0.46/1.15    equalish( Y, T ) ] )
% 0.46/1.15  , clause( 688, [ ~( product2( X, Y, Z ) ), ~( product2( T, Y, Z ) ), 
% 0.46/1.15    equalish( X, T ) ] )
% 0.46/1.15  , clause( 689, [ product2( X, X, X ) ] )
% 0.46/1.15  , clause( 690, [ ~( product1( X, Y, Z ) ), ~( product1( Z, X, T ) ), 
% 0.46/1.15    product2( T, Y, X ) ] )
% 0.46/1.15  ] ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 10, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.15  , clause( 664, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 11, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.15  , clause( 665, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 12, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.15  , clause( 666, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 13, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  , clause( 667, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 14, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 668, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 15, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.15  , clause( 669, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 16, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  , clause( 670, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 18, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.46/1.15  , clause( 672, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 19, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.46/1.15  , clause( 673, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 20, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.15  , clause( 674, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 21, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 675, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 22, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.46/1.15  , clause( 676, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 23, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  , clause( 677, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 24, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 678, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 25, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.46/1.15  , clause( 679, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 26, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), product1( 
% 0.46/1.15    X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' ), ~( 
% 0.46/1.15    'group_element'( Y ) ) ] )
% 0.46/1.15  , clause( 680, [ ~( 'group_element'( X ) ), ~( 'group_element'( Y ) ), 
% 0.46/1.15    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.15    , product1( X, Y, 'e_4' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.15     ), ==>( 1, 5 ), ==>( 2, 2 ), ==>( 3, 3 ), ==>( 4, 4 ), ==>( 5, 1 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 28, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X, T
% 0.46/1.15    , Z ) ) ] )
% 0.46/1.15  , clause( 682, [ ~( product1( X, Y, Z ) ), ~( product1( X, T, Z ) ), 
% 0.46/1.15    equalish( Y, T ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.15    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 29, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T, Y
% 0.46/1.15    , Z ) ) ] )
% 0.46/1.15  , clause( 683, [ ~( product1( X, Y, Z ) ), ~( product1( T, Y, Z ) ), 
% 0.46/1.15    equalish( X, T ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.15    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 30, [ product1( X, X, X ) ] )
% 0.46/1.15  , clause( 684, [ product1( X, X, X ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 32, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X, Y
% 0.46/1.15    , T ) ) ] )
% 0.46/1.15  , clause( 686, [ ~( product2( X, Y, Z ) ), ~( product2( X, Y, T ) ), 
% 0.46/1.15    equalish( Z, T ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.15    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 2 ), ==>( 2, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 35, [ product2( X, X, X ) ] )
% 0.46/1.15  , clause( 689, [ product2( X, X, X ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 36, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( Z
% 0.46/1.15    , X, T ) ) ] )
% 0.46/1.15  , clause( 690, [ ~( product1( X, Y, Z ) ), ~( product1( Z, X, T ) ), 
% 0.46/1.15    product2( T, Y, X ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.46/1.15    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 2 ), ==>( 2, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 727, [ ~( 'group_element'( X ) ), product1( X, 'e_1', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_1', 'e_1' ), product1( X, 'e_1', 'e_2' ), product1( X, 
% 0.46/1.15    'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 26, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.46/1.15    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.15    , ~( 'group_element'( Y ) ) ] )
% 0.46/1.15  , 5, clause( 10, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_1' )] ), substitution( 1, [] )
% 0.46/1.15    ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 49, [ product1( X, 'e_1', 'e_4' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_1', 'e_2' ), product1( X, 'e_1', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , clause( 727, [ ~( 'group_element'( X ) ), product1( X, 'e_1', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_1', 'e_1' ), product1( X, 'e_1', 'e_2' ), product1( X, 
% 0.46/1.15    'e_1', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.46/1.15    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 729, [ ~( 'group_element'( X ) ), product1( X, 'e_2', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_2', 'e_1' ), product1( X, 'e_2', 'e_2' ), product1( X, 
% 0.46/1.15    'e_2', 'e_3' ) ] )
% 0.46/1.15  , clause( 26, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.46/1.15    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.15    , ~( 'group_element'( Y ) ) ] )
% 0.46/1.15  , 5, clause( 11, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_2' )] ), substitution( 1, [] )
% 0.46/1.15    ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 50, [ product1( X, 'e_2', 'e_4' ), product1( X, 'e_2', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_2', 'e_2' ), product1( X, 'e_2', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , clause( 729, [ ~( 'group_element'( X ) ), product1( X, 'e_2', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_2', 'e_1' ), product1( X, 'e_2', 'e_2' ), product1( X, 
% 0.46/1.15    'e_2', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.46/1.15    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 731, [ ~( 'group_element'( X ) ), product1( X, 'e_3', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_3', 'e_1' ), product1( X, 'e_3', 'e_2' ), product1( X, 
% 0.46/1.15    'e_3', 'e_3' ) ] )
% 0.46/1.15  , clause( 26, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.46/1.15    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.15    , ~( 'group_element'( Y ) ) ] )
% 0.46/1.15  , 5, clause( 12, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_3' )] ), substitution( 1, [] )
% 0.46/1.15    ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 51, [ product1( X, 'e_3', 'e_4' ), product1( X, 'e_3', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_3', 'e_2' ), product1( X, 'e_3', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , clause( 731, [ ~( 'group_element'( X ) ), product1( X, 'e_3', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_3', 'e_1' ), product1( X, 'e_3', 'e_2' ), product1( X, 
% 0.46/1.15    'e_3', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.46/1.15    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 733, [ ~( 'group_element'( X ) ), product1( X, 'e_4', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_4', 'e_1' ), product1( X, 'e_4', 'e_2' ), product1( X, 
% 0.46/1.15    'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 26, [ ~( 'group_element'( X ) ), product1( X, Y, 'e_4' ), 
% 0.46/1.15    product1( X, Y, 'e_1' ), product1( X, Y, 'e_2' ), product1( X, Y, 'e_3' )
% 0.46/1.15    , ~( 'group_element'( Y ) ) ] )
% 0.46/1.15  , 5, clause( 13, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'e_4' )] ), substitution( 1, [] )
% 0.46/1.15    ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 52, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , clause( 733, [ ~( 'group_element'( X ) ), product1( X, 'e_4', 'e_4' ), 
% 0.46/1.15    product1( X, 'e_4', 'e_1' ), product1( X, 'e_4', 'e_2' ), product1( X, 
% 0.46/1.15    'e_4', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.46/1.15    0 ), ==>( 2, 1 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 735, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , clause( 28, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.46/1.15    , T, Z ) ) ] )
% 0.46/1.15  , 2, clause( 30, [ product1( X, X, X ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, Y ), :=( Y, X ), :=( Z, Y ), :=( T, Y )] ), 
% 0.46/1.15    substitution( 1, [ :=( X, Y )] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , clause( 735, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.15     ), ==>( 1, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 737, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , clause( 29, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.46/1.15    , Y, Z ) ) ] )
% 0.46/1.15  , 2, clause( 30, [ product1( X, X, X ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Y ), :=( T, Y )] ), 
% 0.46/1.15    substitution( 1, [ :=( X, Y )] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , clause( 737, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.15     ), ==>( 1, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 739, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , clause( 32, [ equalish( Z, T ), ~( product2( X, Y, Z ) ), ~( product2( X
% 0.46/1.15    , Y, T ) ) ] )
% 0.46/1.15  , 2, clause( 35, [ product2( X, X, X ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Y ), :=( Z, X ), :=( T, Y )] ), 
% 0.46/1.15    substitution( 1, [ :=( X, Y )] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 65, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , clause( 739, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.46/1.15     ), ==>( 1, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 740, [ product1( 'e_3', 'e_1', 'e_4' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 49, [ product1( X, 'e_1', 'e_4' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_1', 'e_2' ), product1( X, 'e_1', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , 4, clause( 12, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 91, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 740, [ product1( 'e_3', 'e_1', 'e_4' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 741, [ product1( 'e_4', 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 49, [ product1( X, 'e_1', 'e_4' ), product1( X, 'e_1', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_1', 'e_2' ), product1( X, 'e_1', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , 4, clause( 13, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_4' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 92, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ), product1( 'e_4', 'e_1', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 741, [ product1( 'e_4', 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 749, [ ~( product1( 'e_1', X, 'e_3' ) ), product2( 'e_4', X, 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 36, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.46/1.15    Z, X, T ) ) ] )
% 0.46/1.15  , 2, clause( 91, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.15    , 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_1' ), :=( Y, X ), :=( Z, 'e_3' ), :=( T, 
% 0.46/1.15    'e_4' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 97, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_4', X, 'e_1' ), 
% 0.46/1.15    ~( product1( 'e_1', X, 'e_3' ) ) ] )
% 0.46/1.15  , clause( 749, [ ~( product1( 'e_1', X, 'e_3' ) ), product2( 'e_4', X, 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15    , product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 4 ), ==>( 1, 
% 0.46/1.15    3 ), ==>( 2, 0 ), ==>( 3, 1 ), ==>( 4, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 750, [ equalish( 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , 1, clause( 92, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1'
% 0.46/1.15    , 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ), product1( 'e_4', 'e_1', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 751, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 16, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 750, [ equalish( 'e_1', 'e_4' ), product1( 'e_4', 'e_1', 'e_1'
% 0.46/1.15     ), product1( 'e_4', 'e_1', 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 104, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 751, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 752, [ product1( 'e_4', 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 50, [ product1( X, 'e_2', 'e_4' ), product1( X, 'e_2', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_2', 'e_2' ), product1( X, 'e_2', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , 4, clause( 13, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_4' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 111, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ), product1( 'e_4', 'e_2', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 752, [ product1( 'e_4', 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 753, [ product1( 'e_4', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 51, [ product1( X, 'e_3', 'e_4' ), product1( X, 'e_3', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_3', 'e_2' ), product1( X, 'e_3', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , 4, clause( 13, [ 'group_element'( 'e_4' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_4' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 118, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ), product1( 'e_4', 'e_3', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 753, [ product1( 'e_4', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 754, [ equalish( 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.46/1.15  , clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , 1, clause( 118, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.46/1.15    , 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ), product1( 'e_4', 'e_3', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 755, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.46/1.15  , clause( 22, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 754, [ equalish( 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1'
% 0.46/1.15     ), product1( 'e_4', 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 130, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.46/1.15  , clause( 755, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 756, [ equalish( 'e_4', 'e_3' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_3', 'e_2' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 130, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.46/1.15    , 'e_2' ), product1( 'e_4', 'e_3', 'e_3' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 757, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , clause( 25, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.46/1.15  , 0, clause( 756, [ equalish( 'e_4', 'e_3' ), product1( 'e_4', 'e_3', 'e_1'
% 0.46/1.15     ), product1( 'e_4', 'e_3', 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 133, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , clause( 757, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 758, [ product1( 'e_1', 'e_4', 'e_4' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 52, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , 4, clause( 10, [ 'group_element'( 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 134, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ), product1( 'e_1', 'e_4', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 758, [ product1( 'e_1', 'e_4', 'e_4' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 759, [ product1( 'e_2', 'e_4', 'e_4' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 52, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , 4, clause( 11, [ 'group_element'( 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 135, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 759, [ product1( 'e_2', 'e_4', 'e_4' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 760, [ product1( 'e_3', 'e_4', 'e_4' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 52, [ product1( X, 'e_4', 'e_4' ), product1( X, 'e_4', 'e_1' ), 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ), product1( X, 'e_4', 'e_3' ), ~( 
% 0.46/1.15    'group_element'( X ) ) ] )
% 0.46/1.15  , 4, clause( 12, [ 'group_element'( 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 136, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 760, [ product1( 'e_3', 'e_4', 'e_4' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 761, [ equalish( 'e_1', 'e_4' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 134, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4'
% 0.46/1.15    , 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ), product1( 'e_1', 'e_4', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 762, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 16, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 761, [ equalish( 'e_1', 'e_4' ), product1( 'e_1', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_1', 'e_4', 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 220, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 762, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 763, [ equalish( 'e_2', 'e_4' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 135, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.46/1.15    , 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 764, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 19, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 763, [ equalish( 'e_2', 'e_4' ), product1( 'e_2', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 226, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 764, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 770, [ ~( product1( 'e_4', X, 'e_2' ) ), product2( 'e_3', X, 'e_4'
% 0.46/1.15     ), product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 36, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.46/1.15    Z, X, T ) ) ] )
% 0.46/1.15  , 2, clause( 226, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.46/1.15    , 'e_2' ), product1( 'e_2', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_2' ), :=( T, 
% 0.46/1.15    'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 228, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product2( 'e_3', X, 'e_4' ), ~( product1( 'e_4', X, 'e_2' ) ) ]
% 0.46/1.15     )
% 0.46/1.15  , clause( 770, [ ~( product1( 'e_4', X, 'e_2' ) ), product2( 'e_3', X, 
% 0.46/1.15    'e_4' ), product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 3 ), ==>( 1, 
% 0.46/1.15    2 ), ==>( 2, 0 ), ==>( 3, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 771, [ equalish( 'e_3', 'e_4' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 136, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.46/1.15    , 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 772, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 22, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 771, [ equalish( 'e_3', 'e_4' ), product1( 'e_3', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_4', 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 244, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , clause( 772, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 773, [ equalish( 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , 1, clause( 244, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.46/1.15    , 'e_2' ), product1( 'e_3', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 774, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , clause( 25, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.46/1.15  , 0, clause( 773, [ equalish( 'e_4', 'e_3' ), product1( 'e_3', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 250, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , clause( 774, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 778, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_2', X, 'e_4'
% 0.46/1.15     ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 36, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.46/1.15    Z, X, T ) ) ] )
% 0.46/1.15  , 2, clause( 250, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.46/1.15    , 'e_2' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_3' ), :=( T, 
% 0.46/1.15    'e_2' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 253, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', X, 'e_4' )
% 0.46/1.15    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.46/1.15  , clause( 778, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_2', X, 
% 0.46/1.15    'e_4' ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.46/1.15    1 ), ==>( 2, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 782, [ equalish( X, 'e_3' ), ~( product1( X, 'e_4', 'e_2' ) ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 29, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.46/1.15    , Y, Z ) ) ] )
% 0.46/1.15  , 2, clause( 250, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.46/1.15    , 'e_2' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, X ), :=( Y, 'e_4' ), :=( Z, 'e_2' ), :=( T, 
% 0.46/1.15    'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 254, [ equalish( X, 'e_3' ), product1( 'e_3', 'e_4', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 782, [ equalish( X, 'e_3' ), ~( product1( X, 'e_4', 'e_2' ) ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.46/1.15    2 ), ==>( 2, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 786, [ equalish( X, 'e_4' ), ~( product1( 'e_3', X, 'e_2' ) ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 28, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.46/1.15    , T, Z ) ) ] )
% 0.46/1.15  , 2, clause( 250, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_4'
% 0.46/1.15    , 'e_2' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_3' ), :=( Y, X ), :=( Z, 'e_2' ), :=( T, 
% 0.46/1.15    'e_4' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 255, [ equalish( X, 'e_4' ), product1( 'e_3', 'e_4', 'e_1' ), ~( 
% 0.46/1.15    product1( 'e_3', X, 'e_2' ) ) ] )
% 0.46/1.15  , clause( 786, [ equalish( X, 'e_4' ), ~( product1( 'e_3', X, 'e_2' ) ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.46/1.15    2 ), ==>( 2, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 787, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_4', 'e_4', 'e_1' )
% 0.46/1.15    , product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 97, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_4', X, 'e_1' ), 
% 0.46/1.15    ~( product1( 'e_1', X, 'e_3' ) ) ] )
% 0.46/1.15  , 4, clause( 220, [ product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4'
% 0.46/1.15    , 'e_2' ), product1( 'e_1', 'e_4', 'e_3' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_4' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 262, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_1', 'e_4', 'e_1' )
% 0.46/1.15    , product1( 'e_1', 'e_4', 'e_2' ), product2( 'e_4', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 787, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_4', 'e_4', 'e_1' )
% 0.46/1.15    , product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 2 ), ==>( 3, 5 ), ==>( 4, 3 ), ==>( 5, 4 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 788, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.46/1.15  , clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , 1, clause( 111, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.46/1.15    , 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ), product1( 'e_4', 'e_2', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_2' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 789, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.46/1.15  , clause( 19, [ ~( equalish( 'e_2', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 788, [ equalish( 'e_2', 'e_4' ), product1( 'e_4', 'e_2', 'e_1'
% 0.46/1.15     ), product1( 'e_4', 'e_2', 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 276, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.46/1.15  , clause( 789, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 790, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', 'e_2', 
% 0.46/1.15    'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 253, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', X, 'e_4'
% 0.46/1.15     ), ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.46/1.15  , 2, clause( 276, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2'
% 0.46/1.15    , 'e_2' ), product1( 'e_4', 'e_2', 'e_3' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 277, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product2( 'e_2', 'e_2', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 790, [ product1( 'e_3', 'e_4', 'e_1' ), product2( 'e_2', 'e_2', 
% 0.46/1.15    'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 3 ), ==>( 2
% 0.46/1.15    , 0 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 791, [ equalish( 'e_4', 'e_2' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.46/1.15  , clause( 65, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , 1, clause( 277, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4'
% 0.46/1.15    , 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ), product2( 'e_2', 'e_2', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 792, [ equalish( 'e_4', 'e_2' ), equalish( 'e_4', 'e_2' ), product1( 
% 0.46/1.15    'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 791, [ equalish( 'e_4', 'e_2' ), product1( 'e_4', 'e_2', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_2' ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  factor(
% 0.46/1.15  clause( 793, [ equalish( 'e_4', 'e_2' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 792, [ equalish( 'e_4', 'e_2' ), equalish( 'e_4', 'e_2' ), 
% 0.46/1.15    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , 0, 1, substitution( 0, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 286, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_2' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 793, [ equalish( 'e_4', 'e_2' ), product1( 'e_4', 'e_2', 'e_1' )
% 0.46/1.15    , product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 794, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , clause( 24, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  , 0, clause( 286, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_2'
% 0.46/1.15     ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 290, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , clause( 794, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 798, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_1', X, 'e_4'
% 0.46/1.15     ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , clause( 36, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.46/1.15    Z, X, T ) ) ] )
% 0.46/1.15  , 2, clause( 290, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_3', 'e_4'
% 0.46/1.15    , 'e_1' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_3' ), :=( T, 
% 0.46/1.15    'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 291, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', X, 'e_4' )
% 0.46/1.15    , ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.46/1.15  , clause( 798, [ ~( product1( 'e_4', X, 'e_3' ) ), product2( 'e_1', X, 
% 0.46/1.15    'e_4' ), product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.46/1.15    1 ), ==>( 2, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 799, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.46/1.15    'e_4' ), product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 291, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', X, 'e_4'
% 0.46/1.15     ), ~( product1( 'e_4', X, 'e_3' ) ) ] )
% 0.46/1.15  , 2, clause( 104, [ product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1'
% 0.46/1.15    , 'e_2' ), product1( 'e_4', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 296, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product2( 'e_1', 'e_1', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 799, [ product1( 'e_4', 'e_2', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.46/1.15    'e_4' ), product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 3 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 800, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 65, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , 1, clause( 296, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1'
% 0.46/1.15    , 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ), product2( 'e_1', 'e_1', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 801, [ equalish( 'e_4', 'e_1' ), equalish( 'e_4', 'e_1' ), product1( 
% 0.46/1.15    'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 800, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1'
% 0.46/1.15     ), product1( 'e_4', 'e_1', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  factor(
% 0.46/1.15  clause( 802, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 801, [ equalish( 'e_4', 'e_1' ), equalish( 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , 0, 1, substitution( 0, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 305, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 802, [ equalish( 'e_4', 'e_1' ), product1( 'e_4', 'e_2', 'e_1' )
% 0.46/1.15    , product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 803, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , clause( 23, [ ~( equalish( 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  , 0, clause( 305, [ product1( 'e_4', 'e_2', 'e_1' ), equalish( 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_4', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 309, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , clause( 803, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1', 
% 0.46/1.15    'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 807, [ equalish( X, 'e_4' ), ~( product1( X, 'e_1', 'e_2' ) ), 
% 0.46/1.15    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , clause( 29, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.46/1.15    , Y, Z ) ) ] )
% 0.46/1.15  , 2, clause( 309, [ product1( 'e_4', 'e_2', 'e_1' ), product1( 'e_4', 'e_1'
% 0.46/1.15    , 'e_2' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, X ), :=( Y, 'e_1' ), :=( Z, 'e_2' ), :=( T, 
% 0.46/1.15    'e_4' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 312, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  , clause( 807, [ equalish( X, 'e_4' ), ~( product1( X, 'e_1', 'e_2' ) ), 
% 0.46/1.15    product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.46/1.15    2 ), ==>( 2, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 808, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product2( 'e_3', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 228, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product2( 'e_3', X, 'e_4' ), ~( product1( 'e_4', X, 'e_2' ) ) ]
% 0.46/1.15     )
% 0.46/1.15  , 3, clause( 133, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_4', 'e_3'
% 0.46/1.15    , 'e_2' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 336, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_3', 'e_3', 'e_4' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 808, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product2( 'e_3', 'e_3', 'e_4' ), product1( 'e_4', 'e_3', 'e_1' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 3 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 809, [ equalish( 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 65, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , 1, clause( 336, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4'
% 0.46/1.15    , 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), product2( 'e_3', 'e_3', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 810, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 25, [ ~( equalish( 'e_4', 'e_3' ) ) ] )
% 0.46/1.15  , 0, clause( 809, [ equalish( 'e_4', 'e_3' ), product1( 'e_2', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_2', 'e_4', 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 344, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 810, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_2' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 2 ), ==>( 2
% 0.46/1.15    , 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 811, [ equalish( 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , 1, clause( 344, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3'
% 0.46/1.15    , 'e_1' ), product1( 'e_2', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_4' ), :=( Y, 'e_2' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 812, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , clause( 24, [ ~( equalish( 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  , 0, clause( 811, [ equalish( 'e_4', 'e_2' ), product1( 'e_2', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 350, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_4', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , clause( 812, [ product1( 'e_2', 'e_4', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 816, [ equalish( X, 'e_2' ), ~( product1( X, 'e_4', 'e_1' ) ), 
% 0.46/1.15    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 29, [ equalish( X, T ), ~( product1( X, Y, Z ) ), ~( product1( T
% 0.46/1.15    , Y, Z ) ) ] )
% 0.46/1.15  , 2, clause( 350, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_2', 'e_4'
% 0.46/1.15    , 'e_1' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, X ), :=( Y, 'e_4' ), :=( Z, 'e_1' ), :=( T, 
% 0.46/1.15    'e_2' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 355, [ equalish( X, 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  , clause( 816, [ equalish( X, 'e_2' ), ~( product1( X, 'e_4', 'e_1' ) ), 
% 0.46/1.15    product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.46/1.15    2 ), ==>( 2, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 817, [ equalish( 'e_1', 'e_4' ), product1( 'e_3', 'e_1', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), 
% 0.46/1.15    product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 65, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , 1, clause( 262, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.15    , 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_1', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_1', 'e_4', 'e_2' ), product2( 'e_4', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , 5, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_4' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 818, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_1', 'e_4', 'e_1' )
% 0.46/1.15    , product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 16, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 817, [ equalish( 'e_1', 'e_4' ), product1( 'e_3', 'e_1', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), 
% 0.46/1.15    product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 530, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' )
% 0.46/1.15    , product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 818, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_1', 'e_4', 'e_1' )
% 0.46/1.15    , product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 0.46/1.15    , 4 ), ==>( 3, 2 ), ==>( 4, 3 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 820, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , 1, clause( 530, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.15    , 'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , 4, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 821, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 15, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.15  , 0, clause( 820, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_1', 'e_4', 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 535, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_1', 'e_4', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 821, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_1', 'e_4', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 2 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 3 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 822, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 254, [ equalish( X, 'e_3' ), product1( 'e_3', 'e_4', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_4', 'e_2' ) ) ] )
% 0.46/1.15  , 2, clause( 535, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4'
% 0.46/1.15    , 'e_1' ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_1', 'e_4', 'e_2'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 823, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 15, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.15  , 0, clause( 822, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 536, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 823, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 3 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 824, [ equalish( 'e_1', 'e_4' ), product1( 'e_3', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 255, [ equalish( X, 'e_4' ), product1( 'e_3', 'e_4', 'e_1' ), ~( 
% 0.46/1.15    product1( 'e_3', X, 'e_2' ) ) ] )
% 0.46/1.15  , 2, clause( 536, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4'
% 0.46/1.15    , 'e_1' ), product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 'e_2'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 826, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 'e_1' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 16, [ ~( equalish( 'e_1', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 824, [ equalish( 'e_1', 'e_4' ), product1( 'e_3', 'e_4', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  factor(
% 0.46/1.15  clause( 827, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 826, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ), product1( 'e_3', 'e_4', 'e_1' )
% 0.46/1.15     ] )
% 0.46/1.15  , 0, 3, substitution( 0, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 542, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 
% 0.46/1.15    'e_1' ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 827, [ product1( 'e_3', 'e_4', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 829, [ equalish( 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 355, [ equalish( X, 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  , 2, clause( 542, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4'
% 0.46/1.15    , 'e_1' ), product1( 'e_3', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 830, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 21, [ ~( equalish( 'e_3', 'e_2' ) ) ] )
% 0.46/1.15  , 0, clause( 829, [ equalish( 'e_3', 'e_2' ), product1( 'e_4', 'e_3', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 543, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , clause( 830, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 831, [ equalish( 'e_1', 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 355, [ equalish( X, 'e_2' ), product1( 'e_4', 'e_3', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_4', 'e_1' ) ) ] )
% 0.46/1.15  , 2, clause( 543, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3'
% 0.46/1.15    , 'e_1' ), product1( 'e_1', 'e_4', 'e_1' ) ] )
% 0.46/1.15  , 2, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 833, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 14, [ ~( equalish( 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  , 0, clause( 831, [ equalish( 'e_1', 'e_2' ), product1( 'e_4', 'e_3', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  factor(
% 0.46/1.15  clause( 834, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , clause( 833, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ), product1( 'e_4', 'e_3', 'e_1' ) ] )
% 0.46/1.15  , 0, 2, substitution( 0, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 552, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , clause( 834, [ product1( 'e_4', 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 838, [ ~( product1( 'e_3', X, 'e_4' ) ), product2( 'e_1', X, 'e_3'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , clause( 36, [ ~( product1( X, Y, Z ) ), product2( T, Y, X ), ~( product1( 
% 0.46/1.15    Z, X, T ) ) ] )
% 0.46/1.15  , 2, clause( 552, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3'
% 0.46/1.15    , 'e_1' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_3' ), :=( Y, X ), :=( Z, 'e_4' ), :=( T, 
% 0.46/1.15    'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 555, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_1', X, 'e_3' )
% 0.46/1.15    , ~( product1( 'e_3', X, 'e_4' ) ) ] )
% 0.46/1.15  , clause( 838, [ ~( product1( 'e_3', X, 'e_4' ) ), product2( 'e_1', X, 
% 0.46/1.15    'e_3' ), product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 2 ), ==>( 1, 
% 0.46/1.15    1 ), ==>( 2, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 842, [ equalish( X, 'e_3' ), ~( product1( 'e_4', X, 'e_1' ) ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , clause( 28, [ equalish( Y, T ), ~( product1( X, Y, Z ) ), ~( product1( X
% 0.46/1.15    , T, Z ) ) ] )
% 0.46/1.15  , 2, clause( 552, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_4', 'e_3'
% 0.46/1.15    , 'e_1' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_4' ), :=( Y, X ), :=( Z, 'e_1' ), :=( T, 
% 0.46/1.15    'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 557, [ equalish( X, 'e_3' ), product1( 'e_3', 'e_1', 'e_1' ), ~( 
% 0.46/1.15    product1( 'e_4', X, 'e_1' ) ) ] )
% 0.46/1.15  , clause( 842, [ equalish( X, 'e_3' ), ~( product1( 'e_4', X, 'e_1' ) ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 0.46/1.15    2 ), ==>( 2, 1 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 843, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.46/1.15    'e_3' ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15    , product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 555, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_1', X, 'e_3'
% 0.46/1.15     ), ~( product1( 'e_3', X, 'e_4' ) ) ] )
% 0.46/1.15  , 2, clause( 91, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.15    , 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_4'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_1' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  factor(
% 0.46/1.15  clause( 844, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.46/1.15    'e_3' ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 843, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.46/1.15    'e_3' ), product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15    , product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , 0, 2, substitution( 0, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 565, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_1', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , clause( 844, [ product1( 'e_3', 'e_1', 'e_1' ), product2( 'e_1', 'e_1', 
% 0.46/1.15    'e_3' ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' )
% 0.46/1.15     ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 3 ), ==>( 2
% 0.46/1.15    , 1 ), ==>( 3, 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 845, [ equalish( 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 65, [ equalish( X, Y ), ~( product2( Y, Y, X ) ) ] )
% 0.46/1.15  , 1, clause( 565, [ product1( 'e_3', 'e_1', 'e_1' ), product1( 'e_3', 'e_1'
% 0.46/1.15    , 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ), product2( 'e_1', 'e_1', 'e_3'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 3, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 846, [ equalish( 'e_3', 'e_1' ), equalish( 'e_3', 'e_1' ), product1( 
% 0.46/1.15    'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 845, [ equalish( 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  factor(
% 0.46/1.15  clause( 847, [ equalish( 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 846, [ equalish( 'e_3', 'e_1' ), equalish( 'e_3', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , 0, 1, substitution( 0, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 616, [ product1( 'e_3', 'e_1', 'e_2' ), equalish( 'e_3', 'e_1' ), 
% 0.46/1.15    product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , clause( 847, [ equalish( 'e_3', 'e_1' ), product1( 'e_3', 'e_1', 'e_2' )
% 0.46/1.15    , product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 ), ==>( 2
% 0.46/1.15    , 2 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 848, [ product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_3' ) ] )
% 0.46/1.15  , clause( 20, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.15  , 0, clause( 616, [ product1( 'e_3', 'e_1', 'e_2' ), equalish( 'e_3', 'e_1'
% 0.46/1.15     ), product1( 'e_3', 'e_1', 'e_3' ) ] )
% 0.46/1.15  , 1, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 620, [ product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_3' ) ] )
% 0.46/1.15  , clause( 848, [ product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1', 
% 0.46/1.15    'e_3' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 0.46/1.15     ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 849, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_2' ) ]
% 0.46/1.15     )
% 0.46/1.15  , clause( 55, [ equalish( X, Y ), ~( product1( Y, X, Y ) ) ] )
% 0.46/1.15  , 1, clause( 620, [ product1( 'e_3', 'e_1', 'e_2' ), product1( 'e_3', 'e_1'
% 0.46/1.15    , 'e_3' ) ] )
% 0.46/1.15  , 1, substitution( 0, [ :=( X, 'e_1' ), :=( Y, 'e_3' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 850, [ product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 15, [ ~( equalish( 'e_1', 'e_3' ) ) ] )
% 0.46/1.15  , 0, clause( 849, [ equalish( 'e_1', 'e_3' ), product1( 'e_3', 'e_1', 'e_2'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 625, [ product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , clause( 850, [ product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 851, [ equalish( 'e_3', 'e_4' ), product1( 'e_4', 'e_2', 'e_1' ) ]
% 0.46/1.15     )
% 0.46/1.15  , clause( 312, [ equalish( X, 'e_4' ), product1( 'e_4', 'e_2', 'e_1' ), ~( 
% 0.46/1.15    product1( X, 'e_1', 'e_2' ) ) ] )
% 0.46/1.15  , 2, clause( 625, [ product1( 'e_3', 'e_1', 'e_2' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_3' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 852, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , clause( 22, [ ~( equalish( 'e_3', 'e_4' ) ) ] )
% 0.46/1.15  , 0, clause( 851, [ equalish( 'e_3', 'e_4' ), product1( 'e_4', 'e_2', 'e_1'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 630, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , clause( 852, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 853, [ equalish( 'e_2', 'e_3' ), product1( 'e_3', 'e_1', 'e_1' ) ]
% 0.46/1.15     )
% 0.46/1.15  , clause( 557, [ equalish( X, 'e_3' ), product1( 'e_3', 'e_1', 'e_1' ), ~( 
% 0.46/1.15    product1( 'e_4', X, 'e_1' ) ) ] )
% 0.46/1.15  , 2, clause( 630, [ product1( 'e_4', 'e_2', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_2' )] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 854, [ product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , clause( 18, [ ~( equalish( 'e_2', 'e_3' ) ) ] )
% 0.46/1.15  , 0, clause( 853, [ equalish( 'e_2', 'e_3' ), product1( 'e_3', 'e_1', 'e_1'
% 0.46/1.15     ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 637, [ product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , clause( 854, [ product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 855, [ equalish( 'e_3', 'e_1' ) ] )
% 0.46/1.15  , clause( 58, [ equalish( X, Y ), ~( product1( X, Y, Y ) ) ] )
% 0.46/1.15  , 1, clause( 637, [ product1( 'e_3', 'e_1', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [ :=( X, 'e_3' ), :=( Y, 'e_1' )] ), substitution( 1
% 0.46/1.15    , [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  resolution(
% 0.46/1.15  clause( 856, [] )
% 0.46/1.15  , clause( 20, [ ~( equalish( 'e_3', 'e_1' ) ) ] )
% 0.46/1.15  , 0, clause( 855, [ equalish( 'e_3', 'e_1' ) ] )
% 0.46/1.15  , 0, substitution( 0, [] ), substitution( 1, [] )).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  subsumption(
% 0.46/1.15  clause( 652, [] )
% 0.46/1.15  , clause( 856, [] )
% 0.46/1.15  , substitution( 0, [] ), permutation( 0, [] ) ).
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  end.
% 0.46/1.15  
% 0.46/1.15  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.46/1.15  
% 0.46/1.15  Memory use:
% 0.46/1.15  
% 0.46/1.15  space for terms:        11792
% 0.46/1.15  space for clauses:      28344
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  clauses generated:      1605
% 0.46/1.15  clauses kept:           653
% 0.46/1.15  clauses selected:       377
% 0.46/1.15  clauses deleted:        88
% 0.46/1.15  clauses inuse deleted:  0
% 0.46/1.15  
% 0.46/1.15  subsentry:          3730
% 0.46/1.15  literals s-matched: 2509
% 0.46/1.15  literals matched:   2220
% 0.46/1.15  full subsumption:   36
% 0.46/1.15  
% 0.46/1.15  checksum:           113326658
% 0.46/1.15  
% 0.46/1.15  
% 0.46/1.15  Bliksem ended
%------------------------------------------------------------------------------