TSTP Solution File: SET079+1 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET079+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n010.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 : Mon Jul 18 22:46:41 EDT 2022

% Result   : Theorem 5.73s 6.15s
% Output   : Refutation 5.73s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.13  % Problem  : SET079+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% 0.12/0.13  % Command  : bliksem %s
% 0.13/0.35  % Computer : n010.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 : Sun Jul 10 05:18:45 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.72/1.11  *** allocated 10000 integers for termspace/termends
% 0.72/1.11  *** allocated 10000 integers for clauses
% 0.72/1.11  *** allocated 10000 integers for justifications
% 0.72/1.11  Bliksem 1.12
% 0.72/1.11  
% 0.72/1.11  
% 0.72/1.11  Automatic Strategy Selection
% 0.72/1.11  
% 0.72/1.11  
% 0.72/1.11  Clauses:
% 0.72/1.11  
% 0.72/1.11  { ! subclass( X, Y ), ! member( Z, X ), member( Z, Y ) }.
% 0.72/1.11  { ! member( skol1( Z, Y ), Y ), subclass( X, Y ) }.
% 0.72/1.11  { member( skol1( X, Y ), X ), subclass( X, Y ) }.
% 0.72/1.11  { subclass( X, universal_class ) }.
% 0.72/1.11  { ! X = Y, subclass( X, Y ) }.
% 0.72/1.11  { ! X = Y, subclass( Y, X ) }.
% 0.72/1.11  { ! subclass( X, Y ), ! subclass( Y, X ), X = Y }.
% 0.72/1.11  { ! member( X, unordered_pair( Y, Z ) ), member( X, universal_class ) }.
% 0.72/1.11  { ! member( X, unordered_pair( Y, Z ) ), alpha1( X, Y, Z ) }.
% 0.72/1.11  { ! member( X, universal_class ), ! alpha1( X, Y, Z ), member( X, 
% 0.72/1.11    unordered_pair( Y, Z ) ) }.
% 0.72/1.11  { ! alpha1( X, Y, Z ), X = Y, X = Z }.
% 0.72/1.11  { ! X = Y, alpha1( X, Y, Z ) }.
% 0.72/1.11  { ! X = Z, alpha1( X, Y, Z ) }.
% 0.72/1.11  { member( unordered_pair( X, Y ), universal_class ) }.
% 0.72/1.11  { singleton( X ) = unordered_pair( X, X ) }.
% 0.72/1.11  { ordered_pair( X, Y ) = unordered_pair( singleton( X ), unordered_pair( X
% 0.72/1.11    , singleton( Y ) ) ) }.
% 0.72/1.11  { ! member( ordered_pair( X, Y ), cross_product( Z, T ) ), member( X, Z ) }
% 0.72/1.11    .
% 0.72/1.11  { ! member( ordered_pair( X, Y ), cross_product( Z, T ) ), member( Y, T ) }
% 0.72/1.11    .
% 0.72/1.11  { ! member( X, Z ), ! member( Y, T ), member( ordered_pair( X, Y ), 
% 0.72/1.11    cross_product( Z, T ) ) }.
% 0.72/1.11  { ! member( X, universal_class ), ! member( Y, universal_class ), first( 
% 0.72/1.11    ordered_pair( X, Y ) ) = X }.
% 0.72/1.11  { ! member( X, universal_class ), ! member( Y, universal_class ), second( 
% 0.72/1.11    ordered_pair( X, Y ) ) = Y }.
% 0.72/1.11  { ! member( X, cross_product( Y, Z ) ), X = ordered_pair( first( X ), 
% 0.72/1.11    second( X ) ) }.
% 0.72/1.11  { ! member( ordered_pair( X, Y ), element_relation ), member( Y, 
% 0.72/1.11    universal_class ) }.
% 0.72/1.11  { ! member( ordered_pair( X, Y ), element_relation ), member( X, Y ) }.
% 0.72/1.11  { ! member( Y, universal_class ), ! member( X, Y ), member( ordered_pair( X
% 0.72/1.11    , Y ), element_relation ) }.
% 0.72/1.11  { subclass( element_relation, cross_product( universal_class, 
% 0.72/1.11    universal_class ) ) }.
% 0.72/1.11  { ! member( Z, intersection( X, Y ) ), member( Z, X ) }.
% 0.72/1.11  { ! member( Z, intersection( X, Y ) ), member( Z, Y ) }.
% 0.72/1.11  { ! member( Z, X ), ! member( Z, Y ), member( Z, intersection( X, Y ) ) }.
% 0.72/1.11  { ! member( Y, complement( X ) ), member( Y, universal_class ) }.
% 0.72/1.11  { ! member( Y, complement( X ) ), ! member( Y, X ) }.
% 0.72/1.11  { ! member( Y, universal_class ), member( Y, X ), member( Y, complement( X
% 0.72/1.11     ) ) }.
% 0.72/1.11  { restrict( Y, X, Z ) = intersection( Y, cross_product( X, Z ) ) }.
% 0.72/1.11  { ! member( X, null_class ) }.
% 0.72/1.11  { ! member( Y, domain_of( X ) ), member( Y, universal_class ) }.
% 0.72/1.11  { ! member( Y, domain_of( X ) ), ! restrict( X, singleton( Y ), 
% 0.72/1.11    universal_class ) = null_class }.
% 0.72/1.11  { ! member( Y, universal_class ), restrict( X, singleton( Y ), 
% 0.72/1.11    universal_class ) = null_class, member( Y, domain_of( X ) ) }.
% 0.72/1.11  { ! member( ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ), member
% 0.72/1.11    ( ordered_pair( ordered_pair( Y, Z ), T ), cross_product( cross_product( 
% 0.72/1.11    universal_class, universal_class ), universal_class ) ) }.
% 0.72/1.11  { ! member( ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ), member
% 0.72/1.11    ( ordered_pair( ordered_pair( Z, T ), Y ), X ) }.
% 0.72/1.11  { ! member( ordered_pair( ordered_pair( Y, Z ), T ), cross_product( 
% 0.72/1.11    cross_product( universal_class, universal_class ), universal_class ) ), !
% 0.72/1.11     member( ordered_pair( ordered_pair( Z, T ), Y ), X ), member( 
% 0.72/1.11    ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ) }.
% 0.72/1.11  { subclass( rotate( X ), cross_product( cross_product( universal_class, 
% 0.72/1.11    universal_class ), universal_class ) ) }.
% 0.72/1.11  { ! member( ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ), member( 
% 0.72/1.11    ordered_pair( ordered_pair( X, Y ), Z ), cross_product( cross_product( 
% 0.72/1.11    universal_class, universal_class ), universal_class ) ) }.
% 0.72/1.11  { ! member( ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ), member( 
% 0.72/1.11    ordered_pair( ordered_pair( Y, X ), Z ), T ) }.
% 0.72/1.11  { ! member( ordered_pair( ordered_pair( X, Y ), Z ), cross_product( 
% 0.72/1.11    cross_product( universal_class, universal_class ), universal_class ) ), !
% 0.72/1.11     member( ordered_pair( ordered_pair( Y, X ), Z ), T ), member( 
% 0.72/1.11    ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ) }.
% 0.72/1.11  { subclass( flip( X ), cross_product( cross_product( universal_class, 
% 0.75/1.33    universal_class ), universal_class ) ) }.
% 0.75/1.33  { ! member( Z, union( X, Y ) ), member( Z, X ), member( Z, Y ) }.
% 0.75/1.33  { ! member( Z, X ), member( Z, union( X, Y ) ) }.
% 0.75/1.33  { ! member( Z, Y ), member( Z, union( X, Y ) ) }.
% 0.75/1.33  { successor( X ) = union( X, singleton( X ) ) }.
% 0.75/1.33  { subclass( successor_relation, cross_product( universal_class, 
% 0.75/1.33    universal_class ) ) }.
% 0.75/1.33  { ! member( ordered_pair( X, Y ), successor_relation ), member( X, 
% 0.75/1.33    universal_class ) }.
% 0.75/1.33  { ! member( ordered_pair( X, Y ), successor_relation ), alpha2( X, Y ) }.
% 0.75/1.33  { ! member( X, universal_class ), ! alpha2( X, Y ), member( ordered_pair( X
% 0.75/1.33    , Y ), successor_relation ) }.
% 0.75/1.33  { ! alpha2( X, Y ), member( Y, universal_class ) }.
% 0.75/1.33  { ! alpha2( X, Y ), successor( X ) = Y }.
% 0.75/1.33  { ! member( Y, universal_class ), ! successor( X ) = Y, alpha2( X, Y ) }.
% 0.75/1.33  { inverse( X ) = domain_of( flip( cross_product( X, universal_class ) ) ) }
% 0.75/1.33    .
% 0.75/1.33  { range_of( X ) = domain_of( inverse( X ) ) }.
% 0.75/1.33  { image( Y, X ) = range_of( restrict( Y, X, universal_class ) ) }.
% 0.75/1.33  { ! inductive( X ), member( null_class, X ) }.
% 0.75/1.33  { ! inductive( X ), subclass( image( successor_relation, X ), X ) }.
% 0.75/1.33  { ! member( null_class, X ), ! subclass( image( successor_relation, X ), X
% 0.75/1.33     ), inductive( X ) }.
% 0.75/1.33  { member( skol2, universal_class ) }.
% 0.75/1.33  { inductive( skol2 ) }.
% 0.75/1.33  { ! inductive( X ), subclass( skol2, X ) }.
% 0.75/1.33  { ! member( X, sum_class( Y ) ), member( skol3( Z, Y ), Y ) }.
% 0.75/1.33  { ! member( X, sum_class( Y ) ), member( X, skol3( X, Y ) ) }.
% 0.75/1.33  { ! member( X, Z ), ! member( Z, Y ), member( X, sum_class( Y ) ) }.
% 0.75/1.33  { ! member( X, universal_class ), member( sum_class( X ), universal_class )
% 0.75/1.33     }.
% 0.75/1.33  { ! member( X, power_class( Y ) ), member( X, universal_class ) }.
% 0.75/1.33  { ! member( X, power_class( Y ) ), subclass( X, Y ) }.
% 0.75/1.33  { ! member( X, universal_class ), ! subclass( X, Y ), member( X, 
% 0.75/1.33    power_class( Y ) ) }.
% 0.75/1.33  { ! member( X, universal_class ), member( power_class( X ), universal_class
% 0.75/1.33     ) }.
% 0.75/1.33  { subclass( compose( Y, X ), cross_product( universal_class, 
% 0.75/1.33    universal_class ) ) }.
% 0.75/1.33  { ! member( ordered_pair( Z, T ), compose( Y, X ) ), member( Z, 
% 0.75/1.33    universal_class ) }.
% 0.75/1.33  { ! member( ordered_pair( Z, T ), compose( Y, X ) ), member( T, image( Y, 
% 0.75/1.33    image( X, singleton( Z ) ) ) ) }.
% 0.75/1.33  { ! member( Z, universal_class ), ! member( T, image( Y, image( X, 
% 0.75/1.33    singleton( Z ) ) ) ), member( ordered_pair( Z, T ), compose( Y, X ) ) }.
% 0.75/1.33  { ! member( X, identity_relation ), member( skol4( Y ), universal_class ) }
% 0.75/1.33    .
% 0.75/1.33  { ! member( X, identity_relation ), X = ordered_pair( skol4( X ), skol4( X
% 0.75/1.33     ) ) }.
% 0.75/1.33  { ! member( Y, universal_class ), ! X = ordered_pair( Y, Y ), member( X, 
% 0.75/1.33    identity_relation ) }.
% 0.75/1.33  { ! function( X ), subclass( X, cross_product( universal_class, 
% 0.75/1.33    universal_class ) ) }.
% 0.75/1.33  { ! function( X ), subclass( compose( X, inverse( X ) ), identity_relation
% 0.75/1.33     ) }.
% 0.75/1.33  { ! subclass( X, cross_product( universal_class, universal_class ) ), ! 
% 0.75/1.33    subclass( compose( X, inverse( X ) ), identity_relation ), function( X )
% 0.75/1.33     }.
% 0.75/1.33  { ! member( X, universal_class ), ! function( Y ), member( image( Y, X ), 
% 0.75/1.33    universal_class ) }.
% 0.75/1.33  { ! disjoint( X, Y ), ! member( Z, X ), ! member( Z, Y ) }.
% 0.75/1.33  { member( skol5( Z, Y ), Y ), disjoint( X, Y ) }.
% 0.75/1.33  { member( skol5( X, Y ), X ), disjoint( X, Y ) }.
% 0.75/1.33  { X = null_class, member( skol6( Y ), universal_class ) }.
% 0.75/1.33  { X = null_class, member( skol6( X ), X ) }.
% 0.75/1.33  { X = null_class, disjoint( skol6( X ), X ) }.
% 0.75/1.33  { apply( X, Y ) = sum_class( image( X, singleton( Y ) ) ) }.
% 0.75/1.33  { function( skol7 ) }.
% 0.75/1.33  { ! member( X, universal_class ), X = null_class, member( apply( skol7, X )
% 0.75/1.33    , X ) }.
% 0.75/1.33  { member( skol8, universal_class ) }.
% 0.75/1.33  { singleton( skol8 ) = null_class }.
% 0.75/1.33  
% 0.75/1.33  percentage equality = 0.149485, percentage horn = 0.884211
% 0.75/1.33  This is a problem with some equality
% 0.75/1.33  
% 0.75/1.33  
% 0.75/1.33  
% 0.75/1.33  Options Used:
% 0.75/1.33  
% 0.75/1.33  useres =            1
% 0.75/1.33  useparamod =        1
% 0.75/1.33  useeqrefl =         1
% 0.75/1.33  useeqfact =         1
% 0.75/1.33  usefactor =         1
% 0.75/1.33  usesimpsplitting =  0
% 0.75/1.33  usesimpdemod =      5
% 0.75/1.33  usesimpres =        3
% 0.75/1.33  
% 0.75/1.33  resimpinuse      =  1000
% 0.75/1.33  resimpclauses =     20000
% 0.75/1.33  substype =          eqrewr
% 0.75/1.33  backwardsubs =      1
% 0.75/1.33  selectoldest =      5
% 0.75/1.33  
% 0.75/1.33  litorderings [0] =  split
% 0.75/1.33  litorderings [1] =  extend the termordering, first sorting on arguments
% 5.73/6.15  
% 5.73/6.15  termordering =      kbo
% 5.73/6.15  
% 5.73/6.15  litapriori =        0
% 5.73/6.15  termapriori =       1
% 5.73/6.15  litaposteriori =    0
% 5.73/6.15  termaposteriori =   0
% 5.73/6.15  demodaposteriori =  0
% 5.73/6.15  ordereqreflfact =   0
% 5.73/6.15  
% 5.73/6.15  litselect =         negord
% 5.73/6.15  
% 5.73/6.15  maxweight =         15
% 5.73/6.15  maxdepth =          30000
% 5.73/6.15  maxlength =         115
% 5.73/6.15  maxnrvars =         195
% 5.73/6.15  excuselevel =       1
% 5.73/6.15  increasemaxweight = 1
% 5.73/6.15  
% 5.73/6.15  maxselected =       10000000
% 5.73/6.15  maxnrclauses =      10000000
% 5.73/6.15  
% 5.73/6.15  showgenerated =    0
% 5.73/6.15  showkept =         0
% 5.73/6.15  showselected =     0
% 5.73/6.15  showdeleted =      0
% 5.73/6.15  showresimp =       1
% 5.73/6.15  showstatus =       2000
% 5.73/6.15  
% 5.73/6.15  prologoutput =     0
% 5.73/6.15  nrgoals =          5000000
% 5.73/6.15  totalproof =       1
% 5.73/6.15  
% 5.73/6.15  Symbols occurring in the translation:
% 5.73/6.15  
% 5.73/6.15  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 5.73/6.15  .  [1, 2]      (w:1, o:44, a:1, s:1, b:0), 
% 5.73/6.15  !  [4, 1]      (w:0, o:23, a:1, s:1, b:0), 
% 5.73/6.15  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 5.73/6.15  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 5.73/6.15  subclass  [37, 2]      (w:1, o:68, a:1, s:1, b:0), 
% 5.73/6.15  member  [39, 2]      (w:1, o:69, a:1, s:1, b:0), 
% 5.73/6.15  universal_class  [40, 0]      (w:1, o:12, a:1, s:1, b:0), 
% 5.73/6.15  unordered_pair  [41, 2]      (w:1, o:70, a:1, s:1, b:0), 
% 5.73/6.15  singleton  [42, 1]      (w:1, o:30, a:1, s:1, b:0), 
% 5.73/6.15  ordered_pair  [43, 2]      (w:1, o:71, a:1, s:1, b:0), 
% 5.73/6.15  cross_product  [45, 2]      (w:1, o:72, a:1, s:1, b:0), 
% 5.73/6.15  first  [46, 1]      (w:1, o:31, a:1, s:1, b:0), 
% 5.73/6.15  second  [47, 1]      (w:1, o:32, a:1, s:1, b:0), 
% 5.73/6.15  element_relation  [49, 0]      (w:1, o:16, a:1, s:1, b:0), 
% 5.73/6.15  intersection  [50, 2]      (w:1, o:74, a:1, s:1, b:0), 
% 5.73/6.15  complement  [51, 1]      (w:1, o:33, a:1, s:1, b:0), 
% 5.73/6.15  restrict  [53, 3]      (w:1, o:83, a:1, s:1, b:0), 
% 5.73/6.15  null_class  [54, 0]      (w:1, o:17, a:1, s:1, b:0), 
% 5.73/6.15  domain_of  [55, 1]      (w:1, o:34, a:1, s:1, b:0), 
% 5.73/6.15  rotate  [57, 1]      (w:1, o:28, a:1, s:1, b:0), 
% 5.73/6.15  flip  [58, 1]      (w:1, o:35, a:1, s:1, b:0), 
% 5.73/6.15  union  [59, 2]      (w:1, o:75, a:1, s:1, b:0), 
% 5.73/6.15  successor  [60, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 5.73/6.15  successor_relation  [61, 0]      (w:1, o:18, a:1, s:1, b:0), 
% 5.73/6.15  inverse  [62, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 5.73/6.15  range_of  [63, 1]      (w:1, o:29, a:1, s:1, b:0), 
% 5.73/6.15  image  [64, 2]      (w:1, o:73, a:1, s:1, b:0), 
% 5.73/6.15  inductive  [65, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 5.73/6.15  sum_class  [66, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 5.73/6.15  power_class  [67, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 5.73/6.15  compose  [69, 2]      (w:1, o:76, a:1, s:1, b:0), 
% 5.73/6.15  identity_relation  [70, 0]      (w:1, o:19, a:1, s:1, b:0), 
% 5.73/6.15  function  [72, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 5.73/6.15  disjoint  [73, 2]      (w:1, o:77, a:1, s:1, b:0), 
% 5.73/6.15  apply  [74, 2]      (w:1, o:78, a:1, s:1, b:0), 
% 5.73/6.15  alpha1  [75, 3]      (w:1, o:84, a:1, s:1, b:1), 
% 5.73/6.15  alpha2  [76, 2]      (w:1, o:79, a:1, s:1, b:1), 
% 5.73/6.15  skol1  [77, 2]      (w:1, o:80, a:1, s:1, b:1), 
% 5.73/6.15  skol2  [78, 0]      (w:1, o:20, a:1, s:1, b:1), 
% 5.73/6.15  skol3  [79, 2]      (w:1, o:81, a:1, s:1, b:1), 
% 5.73/6.15  skol4  [80, 1]      (w:1, o:42, a:1, s:1, b:1), 
% 5.73/6.15  skol5  [81, 2]      (w:1, o:82, a:1, s:1, b:1), 
% 5.73/6.15  skol6  [82, 1]      (w:1, o:43, a:1, s:1, b:1), 
% 5.73/6.15  skol7  [83, 0]      (w:1, o:21, a:1, s:1, b:1), 
% 5.73/6.15  skol8  [84, 0]      (w:1, o:22, a:1, s:1, b:1).
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Starting Search:
% 5.73/6.15  
% 5.73/6.15  *** allocated 15000 integers for clauses
% 5.73/6.15  *** allocated 22500 integers for clauses
% 5.73/6.15  *** allocated 33750 integers for clauses
% 5.73/6.15  *** allocated 15000 integers for termspace/termends
% 5.73/6.15  *** allocated 50625 integers for clauses
% 5.73/6.15  *** allocated 22500 integers for termspace/termends
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 75937 integers for clauses
% 5.73/6.15  *** allocated 33750 integers for termspace/termends
% 5.73/6.15  *** allocated 113905 integers for clauses
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    5104
% 5.73/6.15  Kept:         2033
% 5.73/6.15  Inuse:        123
% 5.73/6.15  Deleted:      5
% 5.73/6.15  Deletedinuse: 2
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 170857 integers for clauses
% 5.73/6.15  *** allocated 50625 integers for termspace/termends
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 75937 integers for termspace/termends
% 5.73/6.15  *** allocated 256285 integers for clauses
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    9925
% 5.73/6.15  Kept:         4036
% 5.73/6.15  Inuse:        197
% 5.73/6.15  Deleted:      58
% 5.73/6.15  Deletedinuse: 19
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 113905 integers for termspace/termends
% 5.73/6.15  *** allocated 384427 integers for clauses
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    13633
% 5.73/6.15  Kept:         6050
% 5.73/6.15  Inuse:        252
% 5.73/6.15  Deleted:      77
% 5.73/6.15  Deletedinuse: 25
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 576640 integers for clauses
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    17552
% 5.73/6.15  Kept:         8096
% 5.73/6.15  Inuse:        312
% 5.73/6.15  Deleted:      87
% 5.73/6.15  Deletedinuse: 33
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 170857 integers for termspace/termends
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    25331
% 5.73/6.15  Kept:         11164
% 5.73/6.15  Inuse:        353
% 5.73/6.15  Deleted:      95
% 5.73/6.15  Deletedinuse: 37
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 864960 integers for clauses
% 5.73/6.15  *** allocated 256285 integers for termspace/termends
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    31643
% 5.73/6.15  Kept:         13656
% 5.73/6.15  Inuse:        363
% 5.73/6.15  Deleted:      97
% 5.73/6.15  Deletedinuse: 39
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    36243
% 5.73/6.15  Kept:         15695
% 5.73/6.15  Inuse:        417
% 5.73/6.15  Deleted:      103
% 5.73/6.15  Deletedinuse: 42
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    40537
% 5.73/6.15  Kept:         17717
% 5.73/6.15  Inuse:        459
% 5.73/6.15  Deleted:      104
% 5.73/6.15  Deletedinuse: 43
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 1297440 integers for clauses
% 5.73/6.15  *** allocated 384427 integers for termspace/termends
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    45164
% 5.73/6.15  Kept:         19756
% 5.73/6.15  Inuse:        496
% 5.73/6.15  Deleted:      107
% 5.73/6.15  Deletedinuse: 43
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying clauses:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    52669
% 5.73/6.15  Kept:         21957
% 5.73/6.15  Inuse:        509
% 5.73/6.15  Deleted:      942
% 5.73/6.15  Deletedinuse: 43
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    60519
% 5.73/6.15  Kept:         23964
% 5.73/6.15  Inuse:        573
% 5.73/6.15  Deleted:      944
% 5.73/6.15  Deletedinuse: 44
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    68996
% 5.73/6.15  Kept:         26018
% 5.73/6.15  Inuse:        632
% 5.73/6.15  Deleted:      944
% 5.73/6.15  Deletedinuse: 44
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    74460
% 5.73/6.15  Kept:         28038
% 5.73/6.15  Inuse:        680
% 5.73/6.15  Deleted:      944
% 5.73/6.15  Deletedinuse: 44
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 576640 integers for termspace/termends
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  *** allocated 1946160 integers for clauses
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    81547
% 5.73/6.15  Kept:         30050
% 5.73/6.15  Inuse:        755
% 5.73/6.15  Deleted:      947
% 5.73/6.15  Deletedinuse: 44
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    86902
% 5.73/6.15  Kept:         32051
% 5.73/6.15  Inuse:        796
% 5.73/6.15  Deleted:      947
% 5.73/6.15  Deletedinuse: 44
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  Resimplifying inuse:
% 5.73/6.15  Done
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Intermediate Status:
% 5.73/6.15  Generated:    92242
% 5.73/6.15  Kept:         34110
% 5.73/6.15  Inuse:        844
% 5.73/6.15  Deleted:      950
% 5.73/6.15  Deletedinuse: 45
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Bliksems!, er is een bewijs:
% 5.73/6.15  % SZS status Theorem
% 5.73/6.15  % SZS output start Refutation
% 5.73/6.15  
% 5.73/6.15  (8) {G0,W12,D3,L3,V3,M3} I { ! member( X, universal_class ), ! alpha1( X, Y
% 5.73/6.15    , Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.73/6.15  (9) {G0,W10,D2,L3,V3,M3} I { ! alpha1( X, Y, Z ), X = Y, X = Z }.
% 5.73/6.15  (11) {G0,W7,D2,L2,V3,M2} I { ! X = Z, alpha1( X, Y, Z ) }.
% 5.73/6.15  (13) {G0,W6,D3,L1,V1,M1} I { unordered_pair( X, X ) ==> singleton( X ) }.
% 5.73/6.15  (32) {G0,W3,D2,L1,V1,M1} I { ! member( X, null_class ) }.
% 5.73/6.15  (92) {G0,W3,D2,L1,V0,M1} I { member( skol8, universal_class ) }.
% 5.73/6.15  (93) {G0,W4,D3,L1,V0,M1} I { singleton( skol8 ) ==> null_class }.
% 5.73/6.15  (95) {G1,W7,D2,L2,V2,M2} F(9) { ! alpha1( X, Y, Y ), X = Y }.
% 5.73/6.15  (99) {G1,W4,D2,L1,V2,M1} Q(11) { alpha1( X, Y, X ) }.
% 5.73/6.15  (249) {G1,W9,D3,L2,V2,M2} R(8,92) { ! alpha1( skol8, X, Y ), member( skol8
% 5.73/6.15    , unordered_pair( X, Y ) ) }.
% 5.73/6.15  (34170) {G2,W13,D3,L3,V3,M3} P(95,249) { ! alpha1( X, Y, Z ), member( X, 
% 5.73/6.15    unordered_pair( Y, Z ) ), ! alpha1( skol8, X, X ) }.
% 5.73/6.15  (34180) {G3,W3,D2,L1,V0,M1} F(34170);d(13);d(93);r(99) { member( skol8, 
% 5.73/6.15    null_class ) }.
% 5.73/6.15  (34181) {G4,W0,D0,L0,V0,M0} S(34180);r(32) {  }.
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  % SZS output end Refutation
% 5.73/6.15  found a proof!
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Unprocessed initial clauses:
% 5.73/6.15  
% 5.73/6.15  (34183) {G0,W9,D2,L3,V3,M3}  { ! subclass( X, Y ), ! member( Z, X ), member
% 5.73/6.15    ( Z, Y ) }.
% 5.73/6.15  (34184) {G0,W8,D3,L2,V3,M2}  { ! member( skol1( Z, Y ), Y ), subclass( X, Y
% 5.73/6.15     ) }.
% 5.73/6.15  (34185) {G0,W8,D3,L2,V2,M2}  { member( skol1( X, Y ), X ), subclass( X, Y )
% 5.73/6.15     }.
% 5.73/6.15  (34186) {G0,W3,D2,L1,V1,M1}  { subclass( X, universal_class ) }.
% 5.73/6.15  (34187) {G0,W6,D2,L2,V2,M2}  { ! X = Y, subclass( X, Y ) }.
% 5.73/6.15  (34188) {G0,W6,D2,L2,V2,M2}  { ! X = Y, subclass( Y, X ) }.
% 5.73/6.15  (34189) {G0,W9,D2,L3,V2,M3}  { ! subclass( X, Y ), ! subclass( Y, X ), X = 
% 5.73/6.15    Y }.
% 5.73/6.15  (34190) {G0,W8,D3,L2,V3,M2}  { ! member( X, unordered_pair( Y, Z ) ), 
% 5.73/6.15    member( X, universal_class ) }.
% 5.73/6.15  (34191) {G0,W9,D3,L2,V3,M2}  { ! member( X, unordered_pair( Y, Z ) ), 
% 5.73/6.15    alpha1( X, Y, Z ) }.
% 5.73/6.15  (34192) {G0,W12,D3,L3,V3,M3}  { ! member( X, universal_class ), ! alpha1( X
% 5.73/6.15    , Y, Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.73/6.15  (34193) {G0,W10,D2,L3,V3,M3}  { ! alpha1( X, Y, Z ), X = Y, X = Z }.
% 5.73/6.15  (34194) {G0,W7,D2,L2,V3,M2}  { ! X = Y, alpha1( X, Y, Z ) }.
% 5.73/6.15  (34195) {G0,W7,D2,L2,V3,M2}  { ! X = Z, alpha1( X, Y, Z ) }.
% 5.73/6.15  (34196) {G0,W5,D3,L1,V2,M1}  { member( unordered_pair( X, Y ), 
% 5.73/6.15    universal_class ) }.
% 5.73/6.15  (34197) {G0,W6,D3,L1,V1,M1}  { singleton( X ) = unordered_pair( X, X ) }.
% 5.73/6.15  (34198) {G0,W11,D5,L1,V2,M1}  { ordered_pair( X, Y ) = unordered_pair( 
% 5.73/6.15    singleton( X ), unordered_pair( X, singleton( Y ) ) ) }.
% 5.73/6.15  (34199) {G0,W10,D3,L2,V4,M2}  { ! member( ordered_pair( X, Y ), 
% 5.73/6.15    cross_product( Z, T ) ), member( X, Z ) }.
% 5.73/6.15  (34200) {G0,W10,D3,L2,V4,M2}  { ! member( ordered_pair( X, Y ), 
% 5.73/6.15    cross_product( Z, T ) ), member( Y, T ) }.
% 5.73/6.15  (34201) {G0,W13,D3,L3,V4,M3}  { ! member( X, Z ), ! member( Y, T ), member
% 5.73/6.15    ( ordered_pair( X, Y ), cross_product( Z, T ) ) }.
% 5.73/6.15  (34202) {G0,W12,D4,L3,V2,M3}  { ! member( X, universal_class ), ! member( Y
% 5.73/6.15    , universal_class ), first( ordered_pair( X, Y ) ) = X }.
% 5.73/6.15  (34203) {G0,W12,D4,L3,V2,M3}  { ! member( X, universal_class ), ! member( Y
% 5.73/6.15    , universal_class ), second( ordered_pair( X, Y ) ) = Y }.
% 5.73/6.15  (34204) {G0,W12,D4,L2,V3,M2}  { ! member( X, cross_product( Y, Z ) ), X = 
% 5.73/6.15    ordered_pair( first( X ), second( X ) ) }.
% 5.73/6.15  (34205) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.73/6.15    element_relation ), member( Y, universal_class ) }.
% 5.73/6.15  (34206) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.73/6.15    element_relation ), member( X, Y ) }.
% 5.73/6.15  (34207) {G0,W11,D3,L3,V2,M3}  { ! member( Y, universal_class ), ! member( X
% 5.73/6.15    , Y ), member( ordered_pair( X, Y ), element_relation ) }.
% 5.73/6.15  (34208) {G0,W5,D3,L1,V0,M1}  { subclass( element_relation, cross_product( 
% 5.73/6.15    universal_class, universal_class ) ) }.
% 5.73/6.15  (34209) {G0,W8,D3,L2,V3,M2}  { ! member( Z, intersection( X, Y ) ), member
% 5.73/6.15    ( Z, X ) }.
% 5.73/6.15  (34210) {G0,W8,D3,L2,V3,M2}  { ! member( Z, intersection( X, Y ) ), member
% 5.73/6.15    ( Z, Y ) }.
% 5.73/6.15  (34211) {G0,W11,D3,L3,V3,M3}  { ! member( Z, X ), ! member( Z, Y ), member
% 5.73/6.15    ( Z, intersection( X, Y ) ) }.
% 5.73/6.15  (34212) {G0,W7,D3,L2,V2,M2}  { ! member( Y, complement( X ) ), member( Y, 
% 5.73/6.15    universal_class ) }.
% 5.73/6.15  (34213) {G0,W7,D3,L2,V2,M2}  { ! member( Y, complement( X ) ), ! member( Y
% 5.73/6.15    , X ) }.
% 5.73/6.15  (34214) {G0,W10,D3,L3,V2,M3}  { ! member( Y, universal_class ), member( Y, 
% 5.73/6.15    X ), member( Y, complement( X ) ) }.
% 5.73/6.15  (34215) {G0,W10,D4,L1,V3,M1}  { restrict( Y, X, Z ) = intersection( Y, 
% 5.73/6.15    cross_product( X, Z ) ) }.
% 5.73/6.15  (34216) {G0,W3,D2,L1,V1,M1}  { ! member( X, null_class ) }.
% 5.73/6.15  (34217) {G0,W7,D3,L2,V2,M2}  { ! member( Y, domain_of( X ) ), member( Y, 
% 5.73/6.15    universal_class ) }.
% 5.73/6.15  (34218) {G0,W11,D4,L2,V2,M2}  { ! member( Y, domain_of( X ) ), ! restrict( 
% 5.73/6.15    X, singleton( Y ), universal_class ) = null_class }.
% 5.73/6.15  (34219) {G0,W14,D4,L3,V2,M3}  { ! member( Y, universal_class ), restrict( X
% 5.73/6.15    , singleton( Y ), universal_class ) = null_class, member( Y, domain_of( X
% 5.73/6.15     ) ) }.
% 5.73/6.15  (34220) {G0,W19,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( Y, Z
% 5.73/6.15     ), T ), rotate( X ) ), member( ordered_pair( ordered_pair( Y, Z ), T ), 
% 5.73/6.15    cross_product( cross_product( universal_class, universal_class ), 
% 5.73/6.15    universal_class ) ) }.
% 5.73/6.15  (34221) {G0,W15,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( Y, Z
% 5.73/6.15     ), T ), rotate( X ) ), member( ordered_pair( ordered_pair( Z, T ), Y ), 
% 5.73/6.15    X ) }.
% 5.73/6.15  (34222) {G0,W26,D4,L3,V4,M3}  { ! member( ordered_pair( ordered_pair( Y, Z
% 5.73/6.15     ), T ), cross_product( cross_product( universal_class, universal_class )
% 5.73/6.15    , universal_class ) ), ! member( ordered_pair( ordered_pair( Z, T ), Y )
% 5.73/6.15    , X ), member( ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ) }.
% 5.73/6.15  (34223) {G0,W8,D4,L1,V1,M1}  { subclass( rotate( X ), cross_product( 
% 5.73/6.15    cross_product( universal_class, universal_class ), universal_class ) )
% 5.73/6.15     }.
% 5.73/6.15  (34224) {G0,W19,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( X, Y
% 5.73/6.15     ), Z ), flip( T ) ), member( ordered_pair( ordered_pair( X, Y ), Z ), 
% 5.73/6.15    cross_product( cross_product( universal_class, universal_class ), 
% 5.73/6.15    universal_class ) ) }.
% 5.73/6.15  (34225) {G0,W15,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( X, Y
% 5.73/6.15     ), Z ), flip( T ) ), member( ordered_pair( ordered_pair( Y, X ), Z ), T
% 5.73/6.15     ) }.
% 5.73/6.15  (34226) {G0,W26,D4,L3,V4,M3}  { ! member( ordered_pair( ordered_pair( X, Y
% 5.73/6.15     ), Z ), cross_product( cross_product( universal_class, universal_class )
% 5.73/6.15    , universal_class ) ), ! member( ordered_pair( ordered_pair( Y, X ), Z )
% 5.73/6.15    , T ), member( ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ) }.
% 5.73/6.15  (34227) {G0,W8,D4,L1,V1,M1}  { subclass( flip( X ), cross_product( 
% 5.73/6.15    cross_product( universal_class, universal_class ), universal_class ) )
% 5.73/6.15     }.
% 5.73/6.15  (34228) {G0,W11,D3,L3,V3,M3}  { ! member( Z, union( X, Y ) ), member( Z, X
% 5.73/6.15     ), member( Z, Y ) }.
% 5.73/6.15  (34229) {G0,W8,D3,L2,V3,M2}  { ! member( Z, X ), member( Z, union( X, Y ) )
% 5.73/6.15     }.
% 5.73/6.15  (34230) {G0,W8,D3,L2,V3,M2}  { ! member( Z, Y ), member( Z, union( X, Y ) )
% 5.73/6.15     }.
% 5.73/6.15  (34231) {G0,W7,D4,L1,V1,M1}  { successor( X ) = union( X, singleton( X ) )
% 5.73/6.15     }.
% 5.73/6.15  (34232) {G0,W5,D3,L1,V0,M1}  { subclass( successor_relation, cross_product
% 5.73/6.15    ( universal_class, universal_class ) ) }.
% 5.73/6.15  (34233) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.73/6.15    successor_relation ), member( X, universal_class ) }.
% 5.73/6.15  (34234) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.73/6.15    successor_relation ), alpha2( X, Y ) }.
% 5.73/6.15  (34235) {G0,W11,D3,L3,V2,M3}  { ! member( X, universal_class ), ! alpha2( X
% 5.73/6.15    , Y ), member( ordered_pair( X, Y ), successor_relation ) }.
% 5.73/6.15  (34236) {G0,W6,D2,L2,V2,M2}  { ! alpha2( X, Y ), member( Y, universal_class
% 5.73/6.15     ) }.
% 5.73/6.15  (34237) {G0,W7,D3,L2,V2,M2}  { ! alpha2( X, Y ), successor( X ) = Y }.
% 5.73/6.15  (34238) {G0,W10,D3,L3,V2,M3}  { ! member( Y, universal_class ), ! successor
% 5.73/6.15    ( X ) = Y, alpha2( X, Y ) }.
% 5.73/6.15  (34239) {G0,W8,D5,L1,V1,M1}  { inverse( X ) = domain_of( flip( 
% 5.73/6.15    cross_product( X, universal_class ) ) ) }.
% 5.73/6.15  (34240) {G0,W6,D4,L1,V1,M1}  { range_of( X ) = domain_of( inverse( X ) )
% 5.73/6.15     }.
% 5.73/6.15  (34241) {G0,W9,D4,L1,V2,M1}  { image( Y, X ) = range_of( restrict( Y, X, 
% 5.73/6.15    universal_class ) ) }.
% 5.73/6.15  (34242) {G0,W5,D2,L2,V1,M2}  { ! inductive( X ), member( null_class, X )
% 5.73/6.15     }.
% 5.73/6.15  (34243) {G0,W7,D3,L2,V1,M2}  { ! inductive( X ), subclass( image( 
% 5.73/6.15    successor_relation, X ), X ) }.
% 5.73/6.15  (34244) {G0,W10,D3,L3,V1,M3}  { ! member( null_class, X ), ! subclass( 
% 5.73/6.15    image( successor_relation, X ), X ), inductive( X ) }.
% 5.73/6.15  (34245) {G0,W3,D2,L1,V0,M1}  { member( skol2, universal_class ) }.
% 5.73/6.15  (34246) {G0,W2,D2,L1,V0,M1}  { inductive( skol2 ) }.
% 5.73/6.15  (34247) {G0,W5,D2,L2,V1,M2}  { ! inductive( X ), subclass( skol2, X ) }.
% 5.73/6.15  (34248) {G0,W9,D3,L2,V3,M2}  { ! member( X, sum_class( Y ) ), member( skol3
% 5.73/6.15    ( Z, Y ), Y ) }.
% 5.73/6.15  (34249) {G0,W9,D3,L2,V2,M2}  { ! member( X, sum_class( Y ) ), member( X, 
% 5.73/6.15    skol3( X, Y ) ) }.
% 5.73/6.15  (34250) {G0,W10,D3,L3,V3,M3}  { ! member( X, Z ), ! member( Z, Y ), member
% 5.73/6.15    ( X, sum_class( Y ) ) }.
% 5.73/6.15  (34251) {G0,W7,D3,L2,V1,M2}  { ! member( X, universal_class ), member( 
% 5.73/6.15    sum_class( X ), universal_class ) }.
% 5.73/6.15  (34252) {G0,W7,D3,L2,V2,M2}  { ! member( X, power_class( Y ) ), member( X, 
% 5.73/6.15    universal_class ) }.
% 5.73/6.15  (34253) {G0,W7,D3,L2,V2,M2}  { ! member( X, power_class( Y ) ), subclass( X
% 5.73/6.15    , Y ) }.
% 5.73/6.15  (34254) {G0,W10,D3,L3,V2,M3}  { ! member( X, universal_class ), ! subclass
% 5.73/6.15    ( X, Y ), member( X, power_class( Y ) ) }.
% 5.73/6.15  (34255) {G0,W7,D3,L2,V1,M2}  { ! member( X, universal_class ), member( 
% 5.73/6.15    power_class( X ), universal_class ) }.
% 5.73/6.15  (34256) {G0,W7,D3,L1,V2,M1}  { subclass( compose( Y, X ), cross_product( 
% 5.73/6.15    universal_class, universal_class ) ) }.
% 5.73/6.15  (34257) {G0,W10,D3,L2,V4,M2}  { ! member( ordered_pair( Z, T ), compose( Y
% 5.73/6.15    , X ) ), member( Z, universal_class ) }.
% 5.73/6.15  (34258) {G0,W15,D5,L2,V4,M2}  { ! member( ordered_pair( Z, T ), compose( Y
% 5.73/6.15    , X ) ), member( T, image( Y, image( X, singleton( Z ) ) ) ) }.
% 5.73/6.15  (34259) {G0,W18,D5,L3,V4,M3}  { ! member( Z, universal_class ), ! member( T
% 5.73/6.15    , image( Y, image( X, singleton( Z ) ) ) ), member( ordered_pair( Z, T )
% 5.73/6.15    , compose( Y, X ) ) }.
% 5.73/6.15  (34260) {G0,W7,D3,L2,V2,M2}  { ! member( X, identity_relation ), member( 
% 5.73/6.15    skol4( Y ), universal_class ) }.
% 5.73/6.15  (34261) {G0,W10,D4,L2,V1,M2}  { ! member( X, identity_relation ), X = 
% 5.73/6.15    ordered_pair( skol4( X ), skol4( X ) ) }.
% 5.73/6.15  (34262) {G0,W11,D3,L3,V2,M3}  { ! member( Y, universal_class ), ! X = 
% 5.73/6.15    ordered_pair( Y, Y ), member( X, identity_relation ) }.
% 5.73/6.15  (34263) {G0,W7,D3,L2,V1,M2}  { ! function( X ), subclass( X, cross_product
% 5.73/6.15    ( universal_class, universal_class ) ) }.
% 5.73/6.15  (34264) {G0,W8,D4,L2,V1,M2}  { ! function( X ), subclass( compose( X, 
% 5.73/6.15    inverse( X ) ), identity_relation ) }.
% 5.73/6.15  (34265) {G0,W13,D4,L3,V1,M3}  { ! subclass( X, cross_product( 
% 5.73/6.15    universal_class, universal_class ) ), ! subclass( compose( X, inverse( X
% 5.73/6.15     ) ), identity_relation ), function( X ) }.
% 5.73/6.15  (34266) {G0,W10,D3,L3,V2,M3}  { ! member( X, universal_class ), ! function
% 5.73/6.15    ( Y ), member( image( Y, X ), universal_class ) }.
% 5.73/6.15  (34267) {G0,W9,D2,L3,V3,M3}  { ! disjoint( X, Y ), ! member( Z, X ), ! 
% 5.73/6.15    member( Z, Y ) }.
% 5.73/6.15  (34268) {G0,W8,D3,L2,V3,M2}  { member( skol5( Z, Y ), Y ), disjoint( X, Y )
% 5.73/6.15     }.
% 5.73/6.15  (34269) {G0,W8,D3,L2,V2,M2}  { member( skol5( X, Y ), X ), disjoint( X, Y )
% 5.73/6.15     }.
% 5.73/6.15  (34270) {G0,W7,D3,L2,V2,M2}  { X = null_class, member( skol6( Y ), 
% 5.73/6.15    universal_class ) }.
% 5.73/6.15  (34271) {G0,W7,D3,L2,V1,M2}  { X = null_class, member( skol6( X ), X ) }.
% 5.73/6.15  (34272) {G0,W7,D3,L2,V1,M2}  { X = null_class, disjoint( skol6( X ), X )
% 5.73/6.15     }.
% 5.73/6.15  (34273) {G0,W9,D5,L1,V2,M1}  { apply( X, Y ) = sum_class( image( X, 
% 5.73/6.15    singleton( Y ) ) ) }.
% 5.73/6.15  (34274) {G0,W2,D2,L1,V0,M1}  { function( skol7 ) }.
% 5.73/6.15  (34275) {G0,W11,D3,L3,V1,M3}  { ! member( X, universal_class ), X = 
% 5.73/6.15    null_class, member( apply( skol7, X ), X ) }.
% 5.73/6.15  (34276) {G0,W3,D2,L1,V0,M1}  { member( skol8, universal_class ) }.
% 5.73/6.15  (34277) {G0,W4,D3,L1,V0,M1}  { singleton( skol8 ) = null_class }.
% 5.73/6.15  
% 5.73/6.15  
% 5.73/6.15  Total Proof:
% 5.73/6.15  
% 5.73/6.15  subsumption: (8) {G0,W12,D3,L3,V3,M3} I { ! member( X, universal_class ), !
% 5.73/6.15     alpha1( X, Y, Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.73/6.15  parent0: (34192) {G0,W12,D3,L3,V3,M3}  { ! member( X, universal_class ), ! 
% 5.73/6.15    alpha1( X, Y, Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.73/6.15  substitution0:
% 5.73/6.15     X := X
% 5.73/6.15     Y := Y
% 5.73/6.15     Z := Z
% 5.73/6.15  end
% 5.73/6.15  permutation0:
% 5.73/6.15     0 ==> 0
% 5.73/6.15     1 ==> 1
% 5.73/6.15     2 ==> 2
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  subsumption: (9) {G0,W10,D2,L3,V3,M3} I { ! alpha1( X, Y, Z ), X = Y, X = Z
% 5.73/6.15     }.
% 5.73/6.15  parent0: (34193) {G0,W10,D2,L3,V3,M3}  { ! alpha1( X, Y, Z ), X = Y, X = Z
% 5.73/6.15     }.
% 5.73/6.15  substitution0:
% 5.73/6.15     X := X
% 5.73/6.15     Y := Y
% 5.73/6.15     Z := Z
% 5.73/6.15  end
% 5.73/6.15  permutation0:
% 5.73/6.15     0 ==> 0
% 5.73/6.15     1 ==> 1
% 5.73/6.15     2 ==> 2
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  subsumption: (11) {G0,W7,D2,L2,V3,M2} I { ! X = Z, alpha1( X, Y, Z ) }.
% 5.73/6.15  parent0: (34195) {G0,W7,D2,L2,V3,M2}  { ! X = Z, alpha1( X, Y, Z ) }.
% 5.73/6.15  substitution0:
% 5.73/6.15     X := X
% 5.73/6.15     Y := Y
% 5.73/6.15     Z := Z
% 5.73/6.15  end
% 5.73/6.15  permutation0:
% 5.73/6.15     0 ==> 0
% 5.73/6.15     1 ==> 1
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  eqswap: (34309) {G0,W6,D3,L1,V1,M1}  { unordered_pair( X, X ) = singleton( 
% 5.73/6.15    X ) }.
% 5.73/6.15  parent0[0]: (34197) {G0,W6,D3,L1,V1,M1}  { singleton( X ) = unordered_pair
% 5.73/6.15    ( X, X ) }.
% 5.73/6.15  substitution0:
% 5.73/6.15     X := X
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  subsumption: (13) {G0,W6,D3,L1,V1,M1} I { unordered_pair( X, X ) ==> 
% 5.73/6.15    singleton( X ) }.
% 5.73/6.15  parent0: (34309) {G0,W6,D3,L1,V1,M1}  { unordered_pair( X, X ) = singleton
% 5.73/6.15    ( X ) }.
% 5.73/6.15  substitution0:
% 5.73/6.15     X := X
% 5.73/6.15  end
% 5.73/6.15  permutation0:
% 5.73/6.15     0 ==> 0
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  subsumption: (32) {G0,W3,D2,L1,V1,M1} I { ! member( X, null_class ) }.
% 5.73/6.15  parent0: (34216) {G0,W3,D2,L1,V1,M1}  { ! member( X, null_class ) }.
% 5.73/6.15  substitution0:
% 5.73/6.15     X := X
% 5.73/6.15  end
% 5.73/6.15  permutation0:
% 5.73/6.15     0 ==> 0
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  subsumption: (92) {G0,W3,D2,L1,V0,M1} I { member( skol8, universal_class )
% 5.73/6.15     }.
% 5.73/6.15  parent0: (34276) {G0,W3,D2,L1,V0,M1}  { member( skol8, universal_class )
% 5.73/6.15     }.
% 5.73/6.15  substitution0:
% 5.73/6.15  end
% 5.73/6.15  permutation0:
% 5.73/6.15     0 ==> 0
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  subsumption: (93) {G0,W4,D3,L1,V0,M1} I { singleton( skol8 ) ==> null_class
% 5.73/6.15     }.
% 5.73/6.15  parent0: (34277) {G0,W4,D3,L1,V0,M1}  { singleton( skol8 ) = null_class }.
% 5.73/6.15  substitution0:
% 5.73/6.15  end
% 5.73/6.15  permutation0:
% 5.73/6.15     0 ==> 0
% 5.73/6.15  end
% 5.73/6.15  
% 5.73/6.15  factor: (34423) {G0,W7,D2,L2,V2,M2}  { ! alpha1( X, Y, Y ), X = Y }.
% 5.73/6.15  parent0[1, 2]: (9) {G0,W10,D2,L3,V3,M3} I { ! alpha1( X, Y, Z ), Cputime limit exceeded (core dumped)
%------------------------------------------------------------------------------