TSTP Solution File: LCL011-1 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : LCL011-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n009.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 : Sun Jul 17 07:49:08 EDT 2022

% Result   : Unsatisfiable 0.42s 1.12s
% Output   : Refutation 0.42s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : LCL011-1 : TPTP v8.1.0. Released v1.0.0.
% 0.11/0.12  % Command  : bliksem %s
% 0.12/0.33  % Computer : n009.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 : Sun Jul  3 22:07:22 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.42/1.12  *** allocated 10000 integers for termspace/termends
% 0.42/1.12  *** allocated 10000 integers for clauses
% 0.42/1.12  *** allocated 10000 integers for justifications
% 0.42/1.12  Bliksem 1.12
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  Automatic Strategy Selection
% 0.42/1.12  
% 0.42/1.12  Clauses:
% 0.42/1.12  [
% 0.42/1.12     [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), ~( 'is_a_theorem'( X ) ), 
% 0.42/1.12    'is_a_theorem'( Y ) ],
% 0.42/1.12     [ 'is_a_theorem'( equivalent( equivalent( X, Y ), equivalent( equivalent( 
% 0.42/1.12    Z, X ), equivalent( Y, Z ) ) ) ) ],
% 0.42/1.12     [ ~( 'is_a_theorem'( equivalent( equivalent( a, b ), equivalent( 
% 0.42/1.12    equivalent( a, c ), equivalent( c, b ) ) ) ) ) ]
% 0.42/1.12  ] .
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  percentage equality = 0.000000, percentage horn = 1.000000
% 0.42/1.12  This is a near-Horn, non-equality  problem
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  Options Used:
% 0.42/1.12  
% 0.42/1.12  useres =            1
% 0.42/1.12  useparamod =        0
% 0.42/1.12  useeqrefl =         0
% 0.42/1.12  useeqfact =         0
% 0.42/1.12  usefactor =         1
% 0.42/1.12  usesimpsplitting =  0
% 0.42/1.12  usesimpdemod =      0
% 0.42/1.12  usesimpres =        4
% 0.42/1.12  
% 0.42/1.12  resimpinuse      =  1000
% 0.42/1.12  resimpclauses =     20000
% 0.42/1.12  substype =          standard
% 0.42/1.12  backwardsubs =      1
% 0.42/1.12  selectoldest =      5
% 0.42/1.12  
% 0.42/1.12  litorderings [0] =  split
% 0.42/1.12  litorderings [1] =  liftord
% 0.42/1.12  
% 0.42/1.12  termordering =      none
% 0.42/1.12  
% 0.42/1.12  litapriori =        1
% 0.42/1.12  termapriori =       0
% 0.42/1.12  litaposteriori =    0
% 0.42/1.12  termaposteriori =   0
% 0.42/1.12  demodaposteriori =  0
% 0.42/1.12  ordereqreflfact =   0
% 0.42/1.12  
% 0.42/1.12  litselect =         negative
% 0.42/1.12  
% 0.42/1.12  maxweight =         30000
% 0.42/1.12  maxdepth =          30000
% 0.42/1.12  maxlength =         115
% 0.42/1.12  maxnrvars =         195
% 0.42/1.12  excuselevel =       0
% 0.42/1.12  increasemaxweight = 0
% 0.42/1.12  
% 0.42/1.12  maxselected =       10000000
% 0.42/1.12  maxnrclauses =      10000000
% 0.42/1.12  
% 0.42/1.12  showgenerated =    0
% 0.42/1.12  showkept =         0
% 0.42/1.12  showselected =     0
% 0.42/1.12  showdeleted =      0
% 0.42/1.12  showresimp =       1
% 0.42/1.12  showstatus =       2000
% 0.42/1.12  
% 0.42/1.12  prologoutput =     1
% 0.42/1.12  nrgoals =          5000000
% 0.42/1.12  totalproof =       1
% 0.42/1.12  
% 0.42/1.12  Symbols occurring in the translation:
% 0.42/1.12  
% 0.42/1.12  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.42/1.12  .  [1, 2]      (w:1, o:21, a:1, s:1, b:0), 
% 0.42/1.12  !  [4, 1]      (w:1, o:15, a:1, s:1, b:0), 
% 0.42/1.12  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.42/1.12  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.42/1.12  equivalent  [41, 2]      (w:1, o:46, a:1, s:1, b:0), 
% 0.42/1.12  'is_a_theorem'  [42, 1]      (w:1, o:20, a:1, s:1, b:0), 
% 0.42/1.12  a  [44, 0]      (w:1, o:12, a:1, s:1, b:0), 
% 0.42/1.12  b  [45, 0]      (w:1, o:13, a:1, s:1, b:0), 
% 0.42/1.12  c  [46, 0]      (w:1, o:14, a:1, s:1, b:0).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  Starting Search:
% 0.42/1.12  
% 0.42/1.12  Resimplifying inuse:
% 0.42/1.12  Done
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  Bliksems!, er is een bewijs:
% 0.42/1.12  % SZS status Unsatisfiable
% 0.42/1.12  % SZS output start Refutation
% 0.42/1.12  
% 0.42/1.12  clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y )
% 0.42/1.12    , ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 1, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), equivalent( 
% 0.42/1.12    equivalent( Z, X ), equivalent( Y, Z ) ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 2, [ ~( 'is_a_theorem'( equivalent( equivalent( a, b ), equivalent( 
% 0.42/1.12    equivalent( a, c ), equivalent( c, b ) ) ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 3, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, Y ), equivalent( equivalent( Z, X ), equivalent( Y, Z ) )
% 0.42/1.12     ), T ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 4, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y, Z )
% 0.42/1.12     ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) ), X )
% 0.42/1.12     ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 5, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X ) ), equivalent( 
% 0.42/1.12    Z, T ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 6, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( equivalent( 
% 0.42/1.12    T, Y ), equivalent( Z, T ) ), X ) ), U ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 7, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( equivalent( equivalent( 
% 0.42/1.12    equivalent( equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( 
% 0.42/1.12    T, Y ), X ) ), equivalent( Z, T ) ), U ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 8, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( Z, X ) ), equivalent( equivalent( T, equivalent( U, Y ) ), 
% 0.42/1.12    equivalent( equivalent( Z, U ), T ) ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 20, [ 'is_a_theorem'( equivalent( X, equivalent( Y, equivalent( X, 
% 0.42/1.12    Y ) ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 25, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, equivalent( X, Y ) ) ), Z ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 29, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( Z, Y ), X ) ), Z ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 31, [ 'is_a_theorem'( equivalent( X, X ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 36, [ 'is_a_theorem'( Y ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( X, X ), Y ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 41, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y, Z )
% 0.42/1.12     ), equivalent( equivalent( Z, Y ), X ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 64, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( Z, X ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 80, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( equivalent( X, Y ), equivalent( Y, Z ) ), 
% 0.42/1.12    equivalent( Z, X ) ), T ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 1907, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), equivalent( 
% 0.42/1.12    equivalent( X, Z ), equivalent( Z, Y ) ) ) ) ] )
% 0.42/1.12  .
% 0.42/1.12  clause( 1931, [] )
% 0.42/1.12  .
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  % SZS output end Refutation
% 0.42/1.12  found a proof!
% 0.42/1.12  
% 0.42/1.12  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.42/1.12  
% 0.42/1.12  initialclauses(
% 0.42/1.12  [ clause( 1933, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), ~( 
% 0.42/1.12    'is_a_theorem'( X ) ), 'is_a_theorem'( Y ) ] )
% 0.42/1.12  , clause( 1934, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( Z, X ), equivalent( Y, Z ) ) ) ) ] )
% 0.42/1.12  , clause( 1935, [ ~( 'is_a_theorem'( equivalent( equivalent( a, b ), 
% 0.42/1.12    equivalent( equivalent( a, c ), equivalent( c, b ) ) ) ) ) ] )
% 0.42/1.12  ] ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y )
% 0.42/1.12    , ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  , clause( 1933, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), ~( 
% 0.42/1.12    'is_a_theorem'( X ) ), 'is_a_theorem'( Y ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.42/1.12     ), ==>( 1, 2 ), ==>( 2, 1 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 1, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), equivalent( 
% 0.42/1.12    equivalent( Z, X ), equivalent( Y, Z ) ) ) ) ] )
% 0.42/1.12  , clause( 1934, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( Z, X ), equivalent( Y, Z ) ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 2, [ ~( 'is_a_theorem'( equivalent( equivalent( a, b ), equivalent( 
% 0.42/1.12    equivalent( a, c ), equivalent( c, b ) ) ) ) ) ] )
% 0.42/1.12  , clause( 1935, [ ~( 'is_a_theorem'( equivalent( equivalent( a, b ), 
% 0.42/1.12    equivalent( equivalent( a, c ), equivalent( c, b ) ) ) ) ) ] )
% 0.42/1.12  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1937, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y
% 0.42/1.12     ), equivalent( equivalent( Z, X ), equivalent( Y, Z ) ) ), T ) ) ), 
% 0.42/1.12    'is_a_theorem'( T ) ] )
% 0.42/1.12  , clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y
% 0.42/1.12     ), ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  , 2, clause( 1, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( Z, X ), equivalent( Y, Z ) ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, equivalent( equivalent( X, Y ), equivalent( 
% 0.42/1.12    equivalent( Z, X ), equivalent( Y, Z ) ) ) ), :=( Y, T )] ), 
% 0.42/1.12    substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 3, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, Y ), equivalent( equivalent( Z, X ), equivalent( Y, Z ) )
% 0.42/1.12     ), T ) ) ) ] )
% 0.42/1.12  , clause( 1937, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( X
% 0.42/1.12    , Y ), equivalent( equivalent( Z, X ), equivalent( Y, Z ) ) ), T ) ) ), 
% 0.42/1.12    'is_a_theorem'( T ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1938, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y, Z
% 0.42/1.12     ) ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) ), X
% 0.42/1.12     ) ) ) ] )
% 0.42/1.12  , clause( 3, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( X, Y ), equivalent( equivalent( Z, X ), 
% 0.42/1.12    equivalent( Y, Z ) ) ), T ) ) ) ] )
% 0.42/1.12  , 1, clause( 1, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( Z, X ), equivalent( Y, Z ) ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Z ), :=( Z, T ), :=( T, 
% 0.42/1.12    equivalent( equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( 
% 0.42/1.12    equivalent( T, Y ), equivalent( Z, T ) ), X ) ) )] ), substitution( 1, [ 
% 0.42/1.12    :=( X, equivalent( Y, Z ) ), :=( Y, equivalent( equivalent( T, Y ), 
% 0.42/1.12    equivalent( Z, T ) ) ), :=( Z, X )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 4, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y, Z )
% 0.42/1.12     ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) ), X )
% 0.42/1.12     ) ) ] )
% 0.42/1.12  , clause( 1938, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) )
% 0.42/1.12    , X ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1939, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X ) ), equivalent( 
% 0.42/1.12    Z, T ) ) ) ] )
% 0.42/1.12  , clause( 3, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( X, Y ), equivalent( equivalent( Z, X ), 
% 0.42/1.12    equivalent( Y, Z ) ) ), T ) ) ) ] )
% 0.42/1.12  , 1, clause( 4, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) )
% 0.42/1.12    , X ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, Z ), :=( Y, T ), :=( Z, Y ), :=( T, 
% 0.42/1.12    equivalent( equivalent( equivalent( X, equivalent( Y, Z ) ), equivalent( 
% 0.42/1.12    equivalent( T, Y ), X ) ), equivalent( Z, T ) ) )] ), substitution( 1, [ 
% 0.42/1.12    :=( X, equivalent( Z, T ) ), :=( Y, equivalent( Y, Z ) ), :=( Z, 
% 0.42/1.12    equivalent( T, Y ) ), :=( T, X )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 5, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X ) ), equivalent( 
% 0.42/1.12    Z, T ) ) ) ] )
% 0.42/1.12  , clause( 1939, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X ) ), equivalent( 
% 0.42/1.12    Z, T ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1941, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( equivalent( T, Y ), 
% 0.42/1.12    equivalent( Z, T ) ), X ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 0.42/1.12  , clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y
% 0.42/1.12     ), ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  , 2, clause( 4, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) )
% 0.42/1.12    , X ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, equivalent( equivalent( X, equivalent( Y, Z
% 0.42/1.12     ) ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) ), X
% 0.42/1.12     ) ) ), :=( Y, U )] ), substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, 
% 0.42/1.12    Z ), :=( T, T )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 6, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( equivalent( 
% 0.42/1.12    T, Y ), equivalent( Z, T ) ), X ) ), U ) ) ) ] )
% 0.42/1.12  , clause( 1941, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( X
% 0.42/1.12    , equivalent( Y, Z ) ), equivalent( equivalent( equivalent( T, Y ), 
% 0.42/1.12    equivalent( Z, T ) ), X ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 0.42/1.12    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1943, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X )
% 0.42/1.12     ), equivalent( Z, T ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 0.42/1.12  , clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y
% 0.42/1.12     ), ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  , 2, clause( 5, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X ) ), equivalent( 
% 0.42/1.12    Z, T ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X ) ), equivalent( 
% 0.42/1.12    Z, T ) ) ), :=( Y, U )] ), substitution( 1, [ :=( X, X ), :=( Y, Y ), 
% 0.42/1.12    :=( Z, Z ), :=( T, T )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 7, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( equivalent( equivalent( 
% 0.42/1.12    equivalent( equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( 
% 0.42/1.12    T, Y ), X ) ), equivalent( Z, T ) ), U ) ) ) ] )
% 0.42/1.12  , clause( 1943, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X )
% 0.42/1.12     ), equivalent( Z, T ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 0.42/1.12    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1944, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y )
% 0.42/1.12    , equivalent( Z, X ) ), equivalent( equivalent( T, equivalent( U, Y ) ), 
% 0.42/1.12    equivalent( equivalent( Z, U ), T ) ) ) ) ] )
% 0.42/1.12  , clause( 7, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( equivalent( X, equivalent( Y, Z ) ), equivalent( 
% 0.42/1.12    equivalent( T, Y ), X ) ), equivalent( Z, T ) ), U ) ) ) ] )
% 0.42/1.12  , 1, clause( 4, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) )
% 0.42/1.12    , X ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, T ), :=( Y, U ), :=( Z, Y ), :=( T, Z ), 
% 0.42/1.12    :=( U, equivalent( equivalent( equivalent( X, Y ), equivalent( Z, X ) ), 
% 0.42/1.12    equivalent( equivalent( T, equivalent( U, Y ) ), equivalent( equivalent( 
% 0.42/1.12    Z, U ), T ) ) ) )] ), substitution( 1, [ :=( X, equivalent( equivalent( T
% 0.42/1.12    , equivalent( U, Y ) ), equivalent( equivalent( Z, U ), T ) ) ), :=( Y, Y
% 0.42/1.12     ), :=( Z, Z ), :=( T, X )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 8, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( Z, X ) ), equivalent( equivalent( T, equivalent( U, Y ) ), 
% 0.42/1.12    equivalent( equivalent( Z, U ), T ) ) ) ) ] )
% 0.42/1.12  , clause( 1944, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y
% 0.42/1.12     ), equivalent( Z, X ) ), equivalent( equivalent( T, equivalent( U, Y ) )
% 0.42/1.12    , equivalent( equivalent( Z, U ), T ) ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 0.42/1.12    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1945, [ 'is_a_theorem'( equivalent( X, equivalent( Y, equivalent( X
% 0.42/1.12    , Y ) ) ) ) ] )
% 0.42/1.12  , clause( 6, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( 
% 0.42/1.12    equivalent( T, Y ), equivalent( Z, T ) ), X ) ), U ) ) ) ] )
% 0.42/1.12  , 1, clause( 5, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( equivalent( T, Y ), X ) ), equivalent( 
% 0.42/1.12    Z, T ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, Z ), :=( Y, equivalent( X, Y ) ), :=( Z, X )
% 0.42/1.12    , :=( T, Y ), :=( U, equivalent( X, equivalent( Y, equivalent( X, Y ) ) )
% 0.42/1.12     )] ), substitution( 1, [ :=( X, Z ), :=( Y, equivalent( X, Y ) ), :=( Z
% 0.42/1.12    , X ), :=( T, equivalent( Y, equivalent( X, Y ) ) )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 20, [ 'is_a_theorem'( equivalent( X, equivalent( Y, equivalent( X, 
% 0.42/1.12    Y ) ) ) ) ] )
% 0.42/1.12  , clause( 1945, [ 'is_a_theorem'( equivalent( X, equivalent( Y, equivalent( 
% 0.42/1.12    X, Y ) ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.42/1.12     )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1947, [ ~( 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , equivalent( X, Y ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 0.42/1.12  , clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y
% 0.42/1.12     ), ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  , 2, clause( 20, [ 'is_a_theorem'( equivalent( X, equivalent( Y, equivalent( 
% 0.42/1.12    X, Y ) ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, equivalent( X, equivalent( Y, equivalent( X
% 0.42/1.12    , Y ) ) ) ), :=( Y, Z )] ), substitution( 1, [ :=( X, X ), :=( Y, Y )] )
% 0.42/1.12    ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 25, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, equivalent( X, Y ) ) ), Z ) ) ) ] )
% 0.42/1.12  , clause( 1947, [ ~( 'is_a_theorem'( equivalent( equivalent( X, equivalent( 
% 0.42/1.12    Y, equivalent( X, Y ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1948, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y )
% 0.42/1.12    , equivalent( equivalent( Z, Y ), X ) ), Z ) ) ] )
% 0.42/1.12  , clause( 25, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, equivalent( X, Y ) ) ), Z ) ) ) ] )
% 0.42/1.12  , 1, clause( 4, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( equivalent( T, Y ), equivalent( Z, T ) )
% 0.42/1.12    , X ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, Z ), :=( Y, Y ), :=( Z, equivalent( 
% 0.42/1.12    equivalent( equivalent( X, Y ), equivalent( equivalent( Z, Y ), X ) ), Z
% 0.42/1.12     ) )] ), substitution( 1, [ :=( X, Z ), :=( Y, Y ), :=( Z, equivalent( Z
% 0.42/1.12    , Y ) ), :=( T, X )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 29, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( Z, Y ), X ) ), Z ) ) ] )
% 0.42/1.12  , clause( 1948, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y
% 0.42/1.12     ), equivalent( equivalent( Z, Y ), X ) ), Z ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1949, [ 'is_a_theorem'( equivalent( X, X ) ) ] )
% 0.42/1.12  , clause( 6, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( 
% 0.42/1.12    equivalent( T, Y ), equivalent( Z, T ) ), X ) ), U ) ) ) ] )
% 0.42/1.12  , 1, clause( 29, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y
% 0.42/1.12     ), equivalent( equivalent( Z, Y ), X ) ), Z ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, Y ), :=( Y, X ), :=( Z, X ), :=( T, X ), 
% 0.42/1.12    :=( U, equivalent( X, X ) )] ), substitution( 1, [ :=( X, Y ), :=( Y, 
% 0.42/1.12    equivalent( X, X ) ), :=( Z, equivalent( X, X ) )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 31, [ 'is_a_theorem'( equivalent( X, X ) ) ] )
% 0.42/1.12  , clause( 1949, [ 'is_a_theorem'( equivalent( X, X ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1951, [ ~( 'is_a_theorem'( equivalent( equivalent( X, X ), Y ) ) )
% 0.42/1.12    , 'is_a_theorem'( Y ) ] )
% 0.42/1.12  , clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y
% 0.42/1.12     ), ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  , 2, clause( 31, [ 'is_a_theorem'( equivalent( X, X ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, equivalent( X, X ) ), :=( Y, Y )] ), 
% 0.42/1.12    substitution( 1, [ :=( X, X )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 36, [ 'is_a_theorem'( Y ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( X, X ), Y ) ) ) ] )
% 0.42/1.12  , clause( 1951, [ ~( 'is_a_theorem'( equivalent( equivalent( X, X ), Y ) )
% 0.42/1.12     ), 'is_a_theorem'( Y ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 1
% 0.42/1.12     ), ==>( 1, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1952, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y, Z
% 0.42/1.12     ) ), equivalent( equivalent( Z, Y ), X ) ) ) ] )
% 0.42/1.12  , clause( 36, [ 'is_a_theorem'( Y ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( X, X ), Y ) ) ) ] )
% 0.42/1.12  , 1, clause( 8, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y
% 0.42/1.12     ), equivalent( Z, X ) ), equivalent( equivalent( T, equivalent( U, Y ) )
% 0.42/1.12    , equivalent( equivalent( Z, U ), T ) ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, equivalent( Z, Z ) ), :=( Y, equivalent( 
% 0.42/1.12    equivalent( X, equivalent( Y, Z ) ), equivalent( equivalent( Z, Y ), X )
% 0.42/1.12     ) )] ), substitution( 1, [ :=( X, Z ), :=( Y, Z ), :=( Z, Z ), :=( T, X
% 0.42/1.12     ), :=( U, Y )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 41, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y, Z )
% 0.42/1.12     ), equivalent( equivalent( Z, Y ), X ) ) ) ] )
% 0.42/1.12  , clause( 1952, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( Z, Y ), X ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1953, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y )
% 0.42/1.12    , equivalent( Y, Z ) ), equivalent( Z, X ) ) ) ] )
% 0.42/1.12  , clause( 3, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( X, Y ), equivalent( equivalent( Z, X ), 
% 0.42/1.12    equivalent( Y, Z ) ) ), T ) ) ) ] )
% 0.42/1.12  , 1, clause( 41, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( Z, Y ), X ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, Z ), :=( Y, X ), :=( Z, Y ), :=( T, 
% 0.42/1.12    equivalent( equivalent( equivalent( X, Y ), equivalent( Y, Z ) ), 
% 0.42/1.12    equivalent( Z, X ) ) )] ), substitution( 1, [ :=( X, equivalent( Z, X ) )
% 0.42/1.12    , :=( Y, equivalent( Y, Z ) ), :=( Z, equivalent( X, Y ) )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 64, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( Z, X ) ) ) ] )
% 0.42/1.12  , clause( 1953, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y
% 0.42/1.12     ), equivalent( Y, Z ) ), equivalent( Z, X ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1955, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, Y ), equivalent( Y, Z ) ), equivalent( Z, X ) ), T ) ) ), 
% 0.42/1.12    'is_a_theorem'( T ) ] )
% 0.42/1.12  , clause( 0, [ ~( 'is_a_theorem'( equivalent( X, Y ) ) ), 'is_a_theorem'( Y
% 0.42/1.12     ), ~( 'is_a_theorem'( X ) ) ] )
% 0.42/1.12  , 2, clause( 64, [ 'is_a_theorem'( equivalent( equivalent( equivalent( X, Y
% 0.42/1.12     ), equivalent( Y, Z ) ), equivalent( Z, X ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, equivalent( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( Y, Z ) ), equivalent( Z, X ) ) ), :=( Y, T )] ), 
% 0.42/1.12    substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 80, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( equivalent( X, Y ), equivalent( Y, Z ) ), 
% 0.42/1.12    equivalent( Z, X ) ), T ) ) ) ] )
% 0.42/1.12  , clause( 1955, [ ~( 'is_a_theorem'( equivalent( equivalent( equivalent( 
% 0.42/1.12    equivalent( X, Y ), equivalent( Y, Z ) ), equivalent( Z, X ) ), T ) ) ), 
% 0.42/1.12    'is_a_theorem'( T ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1956, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), equivalent( 
% 0.42/1.12    equivalent( X, Z ), equivalent( Z, Y ) ) ) ) ] )
% 0.42/1.12  , clause( 80, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( equivalent( 
% 0.42/1.12    equivalent( equivalent( equivalent( X, Y ), equivalent( Y, Z ) ), 
% 0.42/1.12    equivalent( Z, X ) ), T ) ) ) ] )
% 0.42/1.12  , 1, clause( 41, [ 'is_a_theorem'( equivalent( equivalent( X, equivalent( Y
% 0.42/1.12    , Z ) ), equivalent( equivalent( Z, Y ), X ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [ :=( X, X ), :=( Y, Z ), :=( Z, Y ), :=( T, 
% 0.42/1.12    equivalent( equivalent( X, Y ), equivalent( equivalent( X, Z ), 
% 0.42/1.12    equivalent( Z, Y ) ) ) )] ), substitution( 1, [ :=( X, equivalent( 
% 0.42/1.12    equivalent( X, Z ), equivalent( Z, Y ) ) ), :=( Y, Y ), :=( Z, X )] )
% 0.42/1.12    ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 1907, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), equivalent( 
% 0.42/1.12    equivalent( X, Z ), equivalent( Z, Y ) ) ) ) ] )
% 0.42/1.12  , clause( 1956, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( X, Z ), equivalent( Z, Y ) ) ) ) ] )
% 0.42/1.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.42/1.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  resolution(
% 0.42/1.12  clause( 1957, [] )
% 0.42/1.12  , clause( 2, [ ~( 'is_a_theorem'( equivalent( equivalent( a, b ), 
% 0.42/1.12    equivalent( equivalent( a, c ), equivalent( c, b ) ) ) ) ) ] )
% 0.42/1.12  , 0, clause( 1907, [ 'is_a_theorem'( equivalent( equivalent( X, Y ), 
% 0.42/1.12    equivalent( equivalent( X, Z ), equivalent( Z, Y ) ) ) ) ] )
% 0.42/1.12  , 0, substitution( 0, [] ), substitution( 1, [ :=( X, a ), :=( Y, b ), :=( 
% 0.42/1.12    Z, c )] )).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  subsumption(
% 0.42/1.12  clause( 1931, [] )
% 0.42/1.12  , clause( 1957, [] )
% 0.42/1.12  , substitution( 0, [] ), permutation( 0, [] ) ).
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  end.
% 0.42/1.12  
% 0.42/1.12  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.42/1.12  
% 0.42/1.12  Memory use:
% 0.42/1.12  
% 0.42/1.12  space for terms:        37296
% 0.42/1.12  space for clauses:      191193
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  clauses generated:      3151
% 0.42/1.12  clauses kept:           1932
% 0.42/1.12  clauses selected:       243
% 0.42/1.12  clauses deleted:        0
% 0.42/1.12  clauses inuse deleted:  0
% 0.42/1.12  
% 0.42/1.12  subsentry:          1480
% 0.42/1.12  literals s-matched: 1220
% 0.42/1.12  literals matched:   1220
% 0.42/1.12  full subsumption:   0
% 0.42/1.12  
% 0.42/1.12  checksum:           1749414286
% 0.42/1.12  
% 0.42/1.12  
% 0.42/1.12  Bliksem ended
%------------------------------------------------------------------------------