TSTP Solution File: BOO010-1 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : BOO010-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n020.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 : Thu Jul 14 23:30:37 EDT 2022

% Result   : Unsatisfiable 12.76s 13.17s
% Output   : Refutation 12.76s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : BOO010-1 : TPTP v8.1.0. Released v1.0.0.
% 0.11/0.12  % Command  : bliksem %s
% 0.12/0.33  % Computer : n020.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % DateTime : Wed Jun  1 19:27:38 EDT 2022
% 0.18/0.33  % CPUTime  : 
% 12.76/13.17  *** allocated 10000 integers for termspace/termends
% 12.76/13.17  *** allocated 10000 integers for clauses
% 12.76/13.17  *** allocated 10000 integers for justifications
% 12.76/13.17  Bliksem 1.12
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Automatic Strategy Selection
% 12.76/13.17  
% 12.76/13.17  Clauses:
% 12.76/13.17  [
% 12.76/13.17     [ sum( X, Y, add( X, Y ) ) ],
% 12.76/13.17     [ product( X, Y, multiply( X, Y ) ) ],
% 12.76/13.17     [ ~( sum( X, Y, Z ) ), sum( Y, X, Z ) ],
% 12.76/13.17     [ ~( product( X, Y, Z ) ), product( Y, X, Z ) ],
% 12.76/13.17     [ sum( 'additive_identity', X, X ) ],
% 12.76/13.17     [ sum( X, 'additive_identity', X ) ],
% 12.76/13.17     [ product( 'multiplicative_identity', X, X ) ],
% 12.76/13.17     [ product( X, 'multiplicative_identity', X ) ],
% 12.76/13.17     [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( Y, T, W ) )
% 12.76/13.17    , ~( product( X, W, V0 ) ), sum( Z, U, V0 ) ],
% 12.76/13.17     [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( Y, T, W ) )
% 12.76/13.17    , ~( sum( Z, U, V0 ) ), product( X, W, V0 ) ],
% 12.76/13.17     [ ~( product( X, Y, Z ) ), ~( product( T, Y, U ) ), ~( sum( X, T, W ) )
% 12.76/13.17    , ~( product( W, Y, V0 ) ), sum( Z, U, V0 ) ],
% 12.76/13.17     [ ~( product( X, Y, Z ) ), ~( product( T, Y, U ) ), ~( sum( X, T, W ) )
% 12.76/13.17    , ~( sum( Z, U, V0 ) ), product( W, Y, V0 ) ],
% 12.76/13.17     [ ~( sum( X, Y, Z ) ), ~( sum( X, T, U ) ), ~( product( Y, T, W ) ), ~( 
% 12.76/13.17    sum( X, W, V0 ) ), product( Z, U, V0 ) ],
% 12.76/13.17     [ ~( sum( X, Y, Z ) ), ~( sum( X, T, U ) ), ~( product( Y, T, W ) ), ~( 
% 12.76/13.17    product( Z, U, V0 ) ), sum( X, W, V0 ) ],
% 12.76/13.17     [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T, W ) ), ~( 
% 12.76/13.17    sum( W, Y, V0 ) ), product( Z, U, V0 ) ],
% 12.76/13.17     [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T, W ) ), ~( 
% 12.76/13.17    product( Z, U, V0 ) ), sum( W, Y, V0 ) ],
% 12.76/13.17     [ sum( inverse( X ), X, 'multiplicative_identity' ) ],
% 12.76/13.17     [ sum( X, inverse( X ), 'multiplicative_identity' ) ],
% 12.76/13.17     [ product( inverse( X ), X, 'additive_identity' ) ],
% 12.76/13.17     [ product( X, inverse( X ), 'additive_identity' ) ],
% 12.76/13.17     [ ~( sum( X, Y, Z ) ), ~( sum( X, Y, T ) ), =( Z, T ) ],
% 12.76/13.17     [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), =( Z, T ) ],
% 12.76/13.17     [ ~( sum( x, multiply( x, y ), x ) ) ]
% 12.76/13.17  ] .
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  percentage equality = 0.032787, percentage horn = 1.000000
% 12.76/13.17  This is a problem with some equality
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Options Used:
% 12.76/13.17  
% 12.76/13.17  useres =            1
% 12.76/13.17  useparamod =        1
% 12.76/13.17  useeqrefl =         1
% 12.76/13.17  useeqfact =         1
% 12.76/13.17  usefactor =         1
% 12.76/13.17  usesimpsplitting =  0
% 12.76/13.17  usesimpdemod =      5
% 12.76/13.17  usesimpres =        3
% 12.76/13.17  
% 12.76/13.17  resimpinuse      =  1000
% 12.76/13.17  resimpclauses =     20000
% 12.76/13.17  substype =          eqrewr
% 12.76/13.17  backwardsubs =      1
% 12.76/13.17  selectoldest =      5
% 12.76/13.17  
% 12.76/13.17  litorderings [0] =  split
% 12.76/13.17  litorderings [1] =  extend the termordering, first sorting on arguments
% 12.76/13.17  
% 12.76/13.17  termordering =      kbo
% 12.76/13.17  
% 12.76/13.17  litapriori =        0
% 12.76/13.17  termapriori =       1
% 12.76/13.17  litaposteriori =    0
% 12.76/13.17  termaposteriori =   0
% 12.76/13.17  demodaposteriori =  0
% 12.76/13.17  ordereqreflfact =   0
% 12.76/13.17  
% 12.76/13.17  litselect =         negord
% 12.76/13.17  
% 12.76/13.17  maxweight =         15
% 12.76/13.17  maxdepth =          30000
% 12.76/13.17  maxlength =         115
% 12.76/13.17  maxnrvars =         195
% 12.76/13.17  excuselevel =       1
% 12.76/13.17  increasemaxweight = 1
% 12.76/13.17  
% 12.76/13.17  maxselected =       10000000
% 12.76/13.17  maxnrclauses =      10000000
% 12.76/13.17  
% 12.76/13.17  showgenerated =    0
% 12.76/13.17  showkept =         0
% 12.76/13.17  showselected =     0
% 12.76/13.17  showdeleted =      0
% 12.76/13.17  showresimp =       1
% 12.76/13.17  showstatus =       2000
% 12.76/13.17  
% 12.76/13.17  prologoutput =     1
% 12.76/13.17  nrgoals =          5000000
% 12.76/13.17  totalproof =       1
% 12.76/13.17  
% 12.76/13.17  Symbols occurring in the translation:
% 12.76/13.17  
% 12.76/13.17  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 12.76/13.17  .  [1, 2]      (w:1, o:28, a:1, s:1, b:0), 
% 12.76/13.17  !  [4, 1]      (w:0, o:22, a:1, s:1, b:0), 
% 12.76/13.17  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 12.76/13.17  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 12.76/13.17  add  [41, 2]      (w:1, o:53, a:1, s:1, b:0), 
% 12.76/13.17  sum  [42, 3]      (w:1, o:55, a:1, s:1, b:0), 
% 12.76/13.17  multiply  [43, 2]      (w:1, o:54, a:1, s:1, b:0), 
% 12.76/13.17  product  [44, 3]      (w:1, o:56, a:1, s:1, b:0), 
% 12.76/13.17  'additive_identity'  [46, 0]      (w:1, o:12, a:1, s:1, b:0), 
% 12.76/13.17  'multiplicative_identity'  [47, 0]      (w:1, o:13, a:1, s:1, b:0), 
% 12.76/13.17  inverse  [52, 1]      (w:1, o:27, a:1, s:1, b:0), 
% 12.76/13.17  x  [55, 0]      (w:1, o:20, a:1, s:1, b:0), 
% 12.76/13.17  y  [56, 0]      (w:1, o:21, a:1, s:1, b:0).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Starting Search:
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    8762
% 12.76/13.17  Kept:         2071
% 12.76/13.17  Inuse:        104
% 12.76/13.17  Deleted:      1
% 12.76/13.17  Deletedinuse: 0
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    15344
% 12.76/13.17  Kept:         4216
% 12.76/13.17  Inuse:        131
% 12.76/13.17  Deleted:      2
% 12.76/13.17  Deletedinuse: 1
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    26987
% 12.76/13.17  Kept:         6239
% 12.76/13.17  Inuse:        172
% 12.76/13.17  Deleted:      2
% 12.76/13.17  Deletedinuse: 1
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    42468
% 12.76/13.17  Kept:         8285
% 12.76/13.17  Inuse:        228
% 12.76/13.17  Deleted:      8
% 12.76/13.17  Deletedinuse: 6
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    50985
% 12.76/13.17  Kept:         10297
% 12.76/13.17  Inuse:        266
% 12.76/13.17  Deleted:      8
% 12.76/13.17  Deletedinuse: 6
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    63841
% 12.76/13.17  Kept:         12299
% 12.76/13.17  Inuse:        314
% 12.76/13.17  Deleted:      30
% 12.76/13.17  Deletedinuse: 24
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    73752
% 12.76/13.17  Kept:         14299
% 12.76/13.17  Inuse:        356
% 12.76/13.17  Deleted:      41
% 12.76/13.17  Deletedinuse: 35
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    84351
% 12.76/13.17  Kept:         16345
% 12.76/13.17  Inuse:        400
% 12.76/13.17  Deleted:      128
% 12.76/13.17  Deletedinuse: 100
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    97937
% 12.76/13.17  Kept:         18362
% 12.76/13.17  Inuse:        432
% 12.76/13.17  Deleted:      132
% 12.76/13.17  Deletedinuse: 101
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying clauses:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    124526
% 12.76/13.17  Kept:         20384
% 12.76/13.17  Inuse:        503
% 12.76/13.17  Deleted:      6983
% 12.76/13.17  Deletedinuse: 104
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    136216
% 12.76/13.17  Kept:         22384
% 12.76/13.17  Inuse:        544
% 12.76/13.17  Deleted:      7029
% 12.76/13.17  Deletedinuse: 145
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    146685
% 12.76/13.17  Kept:         24472
% 12.76/13.17  Inuse:        562
% 12.76/13.17  Deleted:      7047
% 12.76/13.17  Deletedinuse: 152
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    153745
% 12.76/13.17  Kept:         26544
% 12.76/13.17  Inuse:        587
% 12.76/13.17  Deleted:      7058
% 12.76/13.17  Deletedinuse: 154
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    164894
% 12.76/13.17  Kept:         28707
% 12.76/13.17  Inuse:        620
% 12.76/13.17  Deleted:      7065
% 12.76/13.17  Deletedinuse: 156
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    176953
% 12.76/13.17  Kept:         30743
% 12.76/13.17  Inuse:        646
% 12.76/13.17  Deleted:      7079
% 12.76/13.17  Deletedinuse: 170
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    186269
% 12.76/13.17  Kept:         32994
% 12.76/13.17  Inuse:        668
% 12.76/13.17  Deleted:      7079
% 12.76/13.17  Deletedinuse: 170
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    196121
% 12.76/13.17  Kept:         35008
% 12.76/13.17  Inuse:        682
% 12.76/13.17  Deleted:      7081
% 12.76/13.17  Deletedinuse: 170
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    205120
% 12.76/13.17  Kept:         37071
% 12.76/13.17  Inuse:        712
% 12.76/13.17  Deleted:      7084
% 12.76/13.17  Deletedinuse: 172
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Intermediate Status:
% 12.76/13.17  Generated:    212960
% 12.76/13.17  Kept:         39074
% 12.76/13.17  Inuse:        742
% 12.76/13.17  Deleted:      7084
% 12.76/13.17  Deletedinuse: 172
% 12.76/13.17  
% 12.76/13.17  Resimplifying inuse:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  Resimplifying clauses:
% 12.76/13.17  Done
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  Bliksems!, er is een bewijs:
% 12.76/13.17  % SZS status Unsatisfiable
% 12.76/13.17  % SZS output start Refutation
% 12.76/13.17  
% 12.76/13.17  clause( 0, [ sum( X, Y, add( X, Y ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 1, [ product( X, Y, multiply( X, Y ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 2, [ ~( sum( X, Y, Z ) ), sum( Y, X, Z ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 3, [ ~( product( X, Y, Z ) ), product( Y, X, Z ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 4, [ sum( 'additive_identity', X, X ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 5, [ sum( X, 'additive_identity', X ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 7, [ product( X, 'multiplicative_identity', X ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 8, [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( Y, T
% 12.76/13.17    , W ) ), ~( product( X, W, V0 ) ), sum( Z, U, V0 ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 14, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T, W
% 12.76/13.17     ) ), ~( sum( W, Y, V0 ) ), product( Z, U, V0 ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 19, [ product( X, inverse( X ), 'additive_identity' ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 20, [ ~( sum( X, Y, Z ) ), ~( sum( X, Y, T ) ), =( Z, T ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 21, [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), =( Z, T ) ]
% 12.76/13.17     )
% 12.76/13.17  .
% 12.76/13.17  clause( 22, [ ~( sum( x, multiply( x, y ), x ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 46, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T, T
% 12.76/13.17     ) ), product( Z, U, U ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 51, [ sum( X, Y, add( Y, X ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 52, [ ~( sum( multiply( x, y ), x, x ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 53, [ product( X, Y, multiply( Y, X ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 60, [ ~( product( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, 
% 12.76/13.17    U, W ) ), sum( multiply( X, T ), Z, W ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 73, [ ~( product( X, Y, Z ) ), ~( product( X, 'additive_identity', 
% 12.76/13.17    T ) ), ~( product( X, Y, U ) ), sum( Z, T, U ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 87, [ ~( product( X, Y, Z ) ), ~( product( X, 'additive_identity', 
% 12.76/13.17    T ) ), sum( Z, T, Z ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 98, [ ~( product( X, Y, Z ) ), ~( sum( T, Y, Y ) ), sum( multiply( 
% 12.76/13.17    X, T ), Z, Z ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 147, [ ~( product( X, 'multiplicative_identity', Y ) ), =( X, Y ) ]
% 12.76/13.17     )
% 12.76/13.17  .
% 12.76/13.17  clause( 852, [ ~( sum( 'additive_identity', X, Y ) ), =( X, Y ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 883, [ ~( sum( multiply( X, y ), X, X ) ), ~( sum( Y, Z, x ) ), ~( 
% 12.76/13.17    sum( Y, Z, X ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 6303, [ ~( sum( X, Y, Z ) ), ~( product( X, 'additive_identity', 
% 12.76/13.17    'additive_identity' ) ), product( Z, Y, Y ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 14432, [ ~( product( X, 'additive_identity', Y ) ), sum( 
% 12.76/13.17    'additive_identity', Y, 'additive_identity' ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 14457, [ sum( 'additive_identity', multiply( 'additive_identity', X
% 12.76/13.17     ), 'additive_identity' ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 14746, [ =( multiply( 'additive_identity', X ), 'additive_identity'
% 12.76/13.17     ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 14783, [ product( X, 'additive_identity', 'additive_identity' ) ]
% 12.76/13.17     )
% 12.76/13.17  .
% 12.76/13.17  clause( 15846, [ ~( sum( X, 'multiplicative_identity', 
% 12.76/13.17    'multiplicative_identity' ) ), sum( multiply( Y, X ), Y, Y ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 20068, [ ~( sum( X, Y, Z ) ), product( Z, Y, Y ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 20165, [ product( add( X, Y ), X, X ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 20988, [ =( add( 'multiplicative_identity', X ), 
% 12.76/13.17    'multiplicative_identity' ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 21031, [ sum( X, 'multiplicative_identity', 
% 12.76/13.17    'multiplicative_identity' ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 40128, [ sum( multiply( Y, X ), Y, Y ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 40179, [ ~( sum( Y, Z, x ) ), ~( sum( Y, Z, X ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 40182, [ ~( sum( X, Y, x ) ) ] )
% 12.76/13.17  .
% 12.76/13.17  clause( 40214, [] )
% 12.76/13.17  .
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  % SZS output end Refutation
% 12.76/13.17  found a proof!
% 12.76/13.17  
% 12.76/13.17  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 12.76/13.17  
% 12.76/13.17  initialclauses(
% 12.76/13.17  [ clause( 40216, [ sum( X, Y, add( X, Y ) ) ] )
% 12.76/13.17  , clause( 40217, [ product( X, Y, multiply( X, Y ) ) ] )
% 12.76/13.17  , clause( 40218, [ ~( sum( X, Y, Z ) ), sum( Y, X, Z ) ] )
% 12.76/13.17  , clause( 40219, [ ~( product( X, Y, Z ) ), product( Y, X, Z ) ] )
% 12.76/13.17  , clause( 40220, [ sum( 'additive_identity', X, X ) ] )
% 12.76/13.17  , clause( 40221, [ sum( X, 'additive_identity', X ) ] )
% 12.76/13.17  , clause( 40222, [ product( 'multiplicative_identity', X, X ) ] )
% 12.76/13.17  , clause( 40223, [ product( X, 'multiplicative_identity', X ) ] )
% 12.76/13.17  , clause( 40224, [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( 
% 12.76/13.17    Y, T, W ) ), ~( product( X, W, V0 ) ), sum( Z, U, V0 ) ] )
% 12.76/13.17  , clause( 40225, [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( 
% 12.76/13.17    Y, T, W ) ), ~( sum( Z, U, V0 ) ), product( X, W, V0 ) ] )
% 12.76/13.17  , clause( 40226, [ ~( product( X, Y, Z ) ), ~( product( T, Y, U ) ), ~( sum( 
% 12.76/13.17    X, T, W ) ), ~( product( W, Y, V0 ) ), sum( Z, U, V0 ) ] )
% 12.76/13.17  , clause( 40227, [ ~( product( X, Y, Z ) ), ~( product( T, Y, U ) ), ~( sum( 
% 12.76/13.17    X, T, W ) ), ~( sum( Z, U, V0 ) ), product( W, Y, V0 ) ] )
% 12.76/13.17  , clause( 40228, [ ~( sum( X, Y, Z ) ), ~( sum( X, T, U ) ), ~( product( Y
% 12.76/13.17    , T, W ) ), ~( sum( X, W, V0 ) ), product( Z, U, V0 ) ] )
% 12.76/13.17  , clause( 40229, [ ~( sum( X, Y, Z ) ), ~( sum( X, T, U ) ), ~( product( Y
% 12.76/13.17    , T, W ) ), ~( product( Z, U, V0 ) ), sum( X, W, V0 ) ] )
% 12.76/13.17  , clause( 40230, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X
% 12.76/13.17    , T, W ) ), ~( sum( W, Y, V0 ) ), product( Z, U, V0 ) ] )
% 12.76/13.17  , clause( 40231, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X
% 12.76/13.17    , T, W ) ), ~( product( Z, U, V0 ) ), sum( W, Y, V0 ) ] )
% 12.76/13.17  , clause( 40232, [ sum( inverse( X ), X, 'multiplicative_identity' ) ] )
% 12.76/13.17  , clause( 40233, [ sum( X, inverse( X ), 'multiplicative_identity' ) ] )
% 12.76/13.17  , clause( 40234, [ product( inverse( X ), X, 'additive_identity' ) ] )
% 12.76/13.17  , clause( 40235, [ product( X, inverse( X ), 'additive_identity' ) ] )
% 12.76/13.17  , clause( 40236, [ ~( sum( X, Y, Z ) ), ~( sum( X, Y, T ) ), =( Z, T ) ] )
% 12.76/13.17  , clause( 40237, [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), =( Z, 
% 12.76/13.17    T ) ] )
% 12.76/13.17  , clause( 40238, [ ~( sum( x, multiply( x, y ), x ) ) ] )
% 12.76/13.17  ] ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 0, [ sum( X, Y, add( X, Y ) ) ] )
% 12.76/13.17  , clause( 40216, [ sum( X, Y, add( X, Y ) ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 12.76/13.17     )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 1, [ product( X, Y, multiply( X, Y ) ) ] )
% 12.76/13.17  , clause( 40217, [ product( X, Y, multiply( X, Y ) ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 12.76/13.17     )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 2, [ ~( sum( X, Y, Z ) ), sum( Y, X, Z ) ] )
% 12.76/13.17  , clause( 40218, [ ~( sum( X, Y, Z ) ), sum( Y, X, Z ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 12.76/13.17    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 3, [ ~( product( X, Y, Z ) ), product( Y, X, Z ) ] )
% 12.76/13.17  , clause( 40219, [ ~( product( X, Y, Z ) ), product( Y, X, Z ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 12.76/13.17    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 4, [ sum( 'additive_identity', X, X ) ] )
% 12.76/13.17  , clause( 40220, [ sum( 'additive_identity', X, X ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 5, [ sum( X, 'additive_identity', X ) ] )
% 12.76/13.17  , clause( 40221, [ sum( X, 'additive_identity', X ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 7, [ product( X, 'multiplicative_identity', X ) ] )
% 12.76/13.17  , clause( 40223, [ product( X, 'multiplicative_identity', X ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 8, [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( Y, T
% 12.76/13.17    , W ) ), ~( product( X, W, V0 ) ), sum( Z, U, V0 ) ] )
% 12.76/13.17  , clause( 40224, [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( 
% 12.76/13.17    Y, T, W ) ), ~( product( X, W, V0 ) ), sum( Z, U, V0 ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 12.76/13.17    , U ), :=( W, W ), :=( V0, V0 )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1
% 12.76/13.17    , 1 ), ==>( 2, 2 ), ==>( 3, 3 ), ==>( 4, 4 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 14, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T, W
% 12.76/13.17     ) ), ~( sum( W, Y, V0 ) ), product( Z, U, V0 ) ] )
% 12.76/13.17  , clause( 40230, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X
% 12.76/13.17    , T, W ) ), ~( sum( W, Y, V0 ) ), product( Z, U, V0 ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 12.76/13.17    , U ), :=( W, W ), :=( V0, V0 )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1
% 12.76/13.17    , 1 ), ==>( 2, 2 ), ==>( 3, 3 ), ==>( 4, 4 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 19, [ product( X, inverse( X ), 'additive_identity' ) ] )
% 12.76/13.17  , clause( 40235, [ product( X, inverse( X ), 'additive_identity' ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 20, [ ~( sum( X, Y, Z ) ), ~( sum( X, Y, T ) ), =( Z, T ) ] )
% 12.76/13.17  , clause( 40236, [ ~( sum( X, Y, Z ) ), ~( sum( X, Y, T ) ), =( Z, T ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 12.76/13.17    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 21, [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), =( Z, T ) ]
% 12.76/13.17     )
% 12.76/13.17  , clause( 40237, [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), =( Z, 
% 12.76/13.17    T ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 12.76/13.17    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 22, [ ~( sum( x, multiply( x, y ), x ) ) ] )
% 12.76/13.17  , clause( 40238, [ ~( sum( x, multiply( x, y ), x ) ) ] )
% 12.76/13.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  factor(
% 12.76/13.17  clause( 40387, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T
% 12.76/13.17    , T ) ), product( Z, U, U ) ] )
% 12.76/13.17  , clause( 14, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T
% 12.76/13.17    , W ) ), ~( sum( W, Y, V0 ) ), product( Z, U, V0 ) ] )
% 12.76/13.17  , 1, 3, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), 
% 12.76/13.17    :=( U, U ), :=( W, T ), :=( V0, U )] )).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 46, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, T, T
% 12.76/13.17     ) ), product( Z, U, U ) ] )
% 12.76/13.17  , clause( 40387, [ ~( sum( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X
% 12.76/13.17    , T, T ) ), product( Z, U, U ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 12.76/13.17    , U )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 ), ==>( 3
% 12.76/13.17    , 3 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  resolution(
% 12.76/13.17  clause( 40389, [ sum( Y, X, add( X, Y ) ) ] )
% 12.76/13.17  , clause( 2, [ ~( sum( X, Y, Z ) ), sum( Y, X, Z ) ] )
% 12.76/13.17  , 0, clause( 0, [ sum( X, Y, add( X, Y ) ) ] )
% 12.76/13.17  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, add( X, Y ) )] ), 
% 12.76/13.17    substitution( 1, [ :=( X, X ), :=( Y, Y )] )).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 51, [ sum( X, Y, add( Y, X ) ) ] )
% 12.76/13.17  , clause( 40389, [ sum( Y, X, add( X, Y ) ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, Y ), :=( Y, X )] ), permutation( 0, [ ==>( 0, 0
% 12.76/13.17     )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  resolution(
% 12.76/13.17  clause( 40390, [ ~( sum( multiply( x, y ), x, x ) ) ] )
% 12.76/13.17  , clause( 22, [ ~( sum( x, multiply( x, y ), x ) ) ] )
% 12.76/13.17  , 0, clause( 2, [ ~( sum( X, Y, Z ) ), sum( Y, X, Z ) ] )
% 12.76/13.17  , 1, substitution( 0, [] ), substitution( 1, [ :=( X, multiply( x, y ) ), 
% 12.76/13.17    :=( Y, x ), :=( Z, x )] )).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 52, [ ~( sum( multiply( x, y ), x, x ) ) ] )
% 12.76/13.17  , clause( 40390, [ ~( sum( multiply( x, y ), x, x ) ) ] )
% 12.76/13.17  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  resolution(
% 12.76/13.17  clause( 40391, [ product( Y, X, multiply( X, Y ) ) ] )
% 12.76/13.17  , clause( 3, [ ~( product( X, Y, Z ) ), product( Y, X, Z ) ] )
% 12.76/13.17  , 0, clause( 1, [ product( X, Y, multiply( X, Y ) ) ] )
% 12.76/13.17  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, multiply( X, Y ) )] )
% 12.76/13.17    , substitution( 1, [ :=( X, X ), :=( Y, Y )] )).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 53, [ product( X, Y, multiply( Y, X ) ) ] )
% 12.76/13.17  , clause( 40391, [ product( Y, X, multiply( X, Y ) ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, Y ), :=( Y, X )] ), permutation( 0, [ ==>( 0, 0
% 12.76/13.17     )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  resolution(
% 12.76/13.17  clause( 40392, [ ~( product( X, Z, T ) ), ~( sum( Y, Z, U ) ), ~( product( 
% 12.76/13.17    X, U, W ) ), sum( multiply( X, Y ), T, W ) ] )
% 12.76/13.17  , clause( 8, [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( Y
% 12.76/13.17    , T, W ) ), ~( product( X, W, V0 ) ), sum( Z, U, V0 ) ] )
% 12.76/13.17  , 0, clause( 1, [ product( X, Y, multiply( X, Y ) ) ] )
% 12.76/13.17  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, multiply( X, Y ) ), 
% 12.76/13.17    :=( T, Z ), :=( U, T ), :=( W, U ), :=( V0, W )] ), substitution( 1, [ 
% 12.76/13.17    :=( X, X ), :=( Y, Y )] )).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 60, [ ~( product( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X, 
% 12.76/13.17    U, W ) ), sum( multiply( X, T ), Z, W ) ] )
% 12.76/13.17  , clause( 40392, [ ~( product( X, Z, T ) ), ~( sum( Y, Z, U ) ), ~( product( 
% 12.76/13.17    X, U, W ) ), sum( multiply( X, Y ), T, W ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, T ), :=( Z, Y ), :=( T, Z ), :=( U
% 12.76/13.17    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2
% 12.76/13.17    , 2 ), ==>( 3, 3 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  resolution(
% 12.76/13.17  clause( 40398, [ ~( product( X, Y, Z ) ), ~( product( X, 
% 12.76/13.17    'additive_identity', T ) ), ~( product( X, Y, U ) ), sum( Z, T, U ) ] )
% 12.76/13.17  , clause( 8, [ ~( product( X, Y, Z ) ), ~( product( X, T, U ) ), ~( sum( Y
% 12.76/13.17    , T, W ) ), ~( product( X, W, V0 ) ), sum( Z, U, V0 ) ] )
% 12.76/13.17  , 2, clause( 5, [ sum( X, 'additive_identity', X ) ] )
% 12.76/13.17  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, 
% 12.76/13.17    'additive_identity' ), :=( U, T ), :=( W, Y ), :=( V0, U )] ), 
% 12.76/13.17    substitution( 1, [ :=( X, Y )] )).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 73, [ ~( product( X, Y, Z ) ), ~( product( X, 'additive_identity', 
% 12.76/13.17    T ) ), ~( product( X, Y, U ) ), sum( Z, T, U ) ] )
% 12.76/13.17  , clause( 40398, [ ~( product( X, Y, Z ) ), ~( product( X, 
% 12.76/13.17    'additive_identity', T ) ), ~( product( X, Y, U ) ), sum( Z, T, U ) ] )
% 12.76/13.17  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 12.76/13.17    , U )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 ), ==>( 3
% 12.76/13.17    , 3 )] ) ).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  factor(
% 12.76/13.17  clause( 40404, [ ~( product( X, Y, Z ) ), ~( product( X, 
% 12.76/13.17    'additive_identity', T ) ), sum( Z, T, Z ) ] )
% 12.76/13.17  , clause( 73, [ ~( product( X, Y, Z ) ), ~( product( X, 'additive_identity'
% 12.76/13.17    , T ) ), ~( product( X, Y, U ) ), sum( Z, T, U ) ] )
% 12.76/13.17  , 0, 2, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), 
% 12.76/13.17    :=( U, Z )] )).
% 12.76/13.17  
% 12.76/13.17  
% 12.76/13.17  subsumption(
% 12.76/13.17  clause( 87, [ ~( product( X, Y, Z ) ), ~( product( X, 'additive_identity', 
% 12.76/13.17    T ) ), sum( Z, T, Z ) ] )
% 12.76/13.17  , clause( 40404, [ ~( product( X, Y, Z ) ), ~( product( X, 
% 12.92/13.37    'additive_identity', T ) ), sum( Z, T, Z ) ] )
% 12.92/13.37  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 12.92/13.37    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  factor(
% 12.92/13.37  clause( 40407, [ ~( product( X, Y, Z ) ), ~( sum( T, Y, Y ) ), sum( 
% 12.92/13.37    multiply( X, T ), Z, Z ) ] )
% 12.92/13.37  , clause( 60, [ ~( product( X, Y, Z ) ), ~( sum( T, Y, U ) ), ~( product( X
% 12.92/13.37    , U, W ) ), sum( multiply( X, T ), Z, W ) ] )
% 12.92/13.37  , 0, 2, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), 
% 12.92/13.37    :=( U, Y ), :=( W, Z )] )).
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  subsumption(
% 12.92/13.37  clause( 98, [ ~( product( X, Y, Z ) ), ~( sum( T, Y, Y ) ), sum( multiply( 
% 12.92/13.37    X, T ), Z, Z ) ] )
% 12.92/13.37  , clause( 40407, [ ~( product( X, Y, Z ) ), ~( sum( T, Y, Y ) ), sum( 
% 12.92/13.37    multiply( X, T ), Z, Z ) ] )
% 12.92/13.37  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 12.92/13.37    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  resolution(
% 12.92/13.37  clause( 40408, [ ~( product( X, 'multiplicative_identity', Y ) ), =( X, Y )
% 12.92/13.37     ] )
% 12.92/13.37  , clause( 21, [ ~( product( X, Y, Z ) ), ~( product( X, Y, T ) ), =( Z, T )
% 12.92/13.37     ] )
% 12.92/13.37  , 0, clause( 7, [ product( X, 'multiplicative_identity', X ) ] )
% 12.92/13.37  , 0, substitution( 0, [ :=( X, X ), :=( Y, 'multiplicative_identity' ), 
% 12.92/13.37    :=( Z, X ), :=( T, Y )] ), substitution( 1, [ :=( X, X )] )).
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  subsumption(
% 12.92/13.37  clause( 147, [ ~( product( X, 'multiplicative_identity', Y ) ), =( X, Y ) ]
% 12.92/13.37     )
% 12.92/13.37  , clause( 40408, [ ~( product( X, 'multiplicative_identity', Y ) ), =( X, Y
% 12.92/13.37     ) ] )
% 12.92/13.37  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 12.92/13.37     ), ==>( 1, 1 )] ) ).
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  resolution(
% 12.92/13.37  clause( 40410, [ ~( sum( 'additive_identity', X, Y ) ), =( X, Y ) ] )
% 12.92/13.37  , clause( 20, [ ~( sum( X, Y, Z ) ), ~( sum( X, Y, T ) ), =( Z, T ) ] )
% 12.92/13.37  , 0, clause( 4, [ sum( 'additive_identity', X, X ) ] )
% 12.92/13.37  , 0, substitution( 0, [ :=( X, 'additive_identity' ), :=( Y, X ), :=( Z, X
% 12.92/13.37     ), :=( T, Y )] ), substitution( 1, [ :=( X, X )] )).
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  subsumption(
% 12.92/13.37  clause( 852, [ ~( sum( 'additive_identity', X, Y ) ), =( X, Y ) ] )
% 12.92/13.37  , clause( 40410, [ ~( sum( 'additive_identity', X, Y ) ), =( X, Y ) ] )
% 12.92/13.37  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 12.92/13.37     ), ==>( 1, 1 )] ) ).
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  assignments is full
% 12.92/13.37  
% 12.92/13.37  Memory use:
% 12.92/13.37  
% 12.92/13.37  space for terms:        577699
% 12.92/13.37  space for clauses:      1571670
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  clauses generated:      217497
% 12.92/13.37  clauses kept:           40215
% 12.92/13.37  clauses selected:       757
% 12.92/13.37  clauses deleted:        10941
% 12.92/13.37  clauses inuse deleted:  172
% 12.92/13.37  
% 12.92/13.37  subsentry:          3758802
% 12.92/13.37  literals s-matched: 1495162
% 12.92/13.37  literals matched:   934302
% 12.92/13.37  full subsumption:   443791
% 12.92/13.37  
% 12.92/13.37  checksum:           -2061359124
% 12.92/13.37  
% 12.92/13.37  
% 12.92/13.37  Bliksem ended
%------------------------------------------------------------------------------