TSTP Solution File: SET024+1 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET024+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n018.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 22:45:38 EDT 2022

% Result   : Theorem 5.75s 6.12s
% Output   : Refutation 5.75s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.11  % Problem  : SET024+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% 0.10/0.12  % Command  : bliksem %s
% 0.13/0.33  % Computer : n018.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % DateTime : Sun Jul 10 09:00:12 EDT 2022
% 0.13/0.33  % CPUTime  : 
% 0.43/1.08  *** allocated 10000 integers for termspace/termends
% 0.43/1.08  *** allocated 10000 integers for clauses
% 0.43/1.08  *** allocated 10000 integers for justifications
% 0.43/1.08  Bliksem 1.12
% 0.43/1.08  
% 0.43/1.08  
% 0.43/1.08  Automatic Strategy Selection
% 0.43/1.08  
% 0.43/1.08  
% 0.43/1.08  Clauses:
% 0.43/1.08  
% 0.43/1.08  { ! subclass( X, Y ), ! member( Z, X ), member( Z, Y ) }.
% 0.43/1.08  { ! member( skol1( Z, Y ), Y ), subclass( X, Y ) }.
% 0.43/1.08  { member( skol1( X, Y ), X ), subclass( X, Y ) }.
% 0.43/1.08  { subclass( X, universal_class ) }.
% 0.43/1.08  { ! X = Y, subclass( X, Y ) }.
% 0.43/1.08  { ! X = Y, subclass( Y, X ) }.
% 0.43/1.08  { ! subclass( X, Y ), ! subclass( Y, X ), X = Y }.
% 0.43/1.08  { ! member( X, unordered_pair( Y, Z ) ), member( X, universal_class ) }.
% 0.43/1.08  { ! member( X, unordered_pair( Y, Z ) ), alpha1( X, Y, Z ) }.
% 0.43/1.08  { ! member( X, universal_class ), ! alpha1( X, Y, Z ), member( X, 
% 0.43/1.08    unordered_pair( Y, Z ) ) }.
% 0.43/1.08  { ! alpha1( X, Y, Z ), X = Y, X = Z }.
% 0.43/1.08  { ! X = Y, alpha1( X, Y, Z ) }.
% 0.43/1.08  { ! X = Z, alpha1( X, Y, Z ) }.
% 0.43/1.08  { member( unordered_pair( X, Y ), universal_class ) }.
% 0.43/1.08  { singleton( X ) = unordered_pair( X, X ) }.
% 0.43/1.08  { ordered_pair( X, Y ) = unordered_pair( singleton( X ), unordered_pair( X
% 0.43/1.08    , singleton( Y ) ) ) }.
% 0.43/1.08  { ! member( ordered_pair( X, Y ), cross_product( Z, T ) ), member( X, Z ) }
% 0.43/1.08    .
% 0.43/1.08  { ! member( ordered_pair( X, Y ), cross_product( Z, T ) ), member( Y, T ) }
% 0.43/1.08    .
% 0.43/1.08  { ! member( X, Z ), ! member( Y, T ), member( ordered_pair( X, Y ), 
% 0.43/1.08    cross_product( Z, T ) ) }.
% 0.43/1.08  { ! member( X, universal_class ), ! member( Y, universal_class ), first( 
% 0.43/1.08    ordered_pair( X, Y ) ) = X }.
% 0.43/1.08  { ! member( X, universal_class ), ! member( Y, universal_class ), second( 
% 0.43/1.08    ordered_pair( X, Y ) ) = Y }.
% 0.43/1.08  { ! member( X, cross_product( Y, Z ) ), X = ordered_pair( first( X ), 
% 0.43/1.08    second( X ) ) }.
% 0.43/1.08  { ! member( ordered_pair( X, Y ), element_relation ), member( Y, 
% 0.43/1.08    universal_class ) }.
% 0.43/1.08  { ! member( ordered_pair( X, Y ), element_relation ), member( X, Y ) }.
% 0.43/1.08  { ! member( Y, universal_class ), ! member( X, Y ), member( ordered_pair( X
% 0.43/1.08    , Y ), element_relation ) }.
% 0.43/1.08  { subclass( element_relation, cross_product( universal_class, 
% 0.43/1.08    universal_class ) ) }.
% 0.43/1.08  { ! member( Z, intersection( X, Y ) ), member( Z, X ) }.
% 0.43/1.08  { ! member( Z, intersection( X, Y ) ), member( Z, Y ) }.
% 0.43/1.08  { ! member( Z, X ), ! member( Z, Y ), member( Z, intersection( X, Y ) ) }.
% 0.43/1.08  { ! member( Y, complement( X ) ), member( Y, universal_class ) }.
% 0.43/1.08  { ! member( Y, complement( X ) ), ! member( Y, X ) }.
% 0.43/1.08  { ! member( Y, universal_class ), member( Y, X ), member( Y, complement( X
% 0.43/1.08     ) ) }.
% 0.43/1.08  { restrict( Y, X, Z ) = intersection( Y, cross_product( X, Z ) ) }.
% 0.43/1.08  { ! member( X, null_class ) }.
% 0.43/1.08  { ! member( Y, domain_of( X ) ), member( Y, universal_class ) }.
% 0.43/1.08  { ! member( Y, domain_of( X ) ), ! restrict( X, singleton( Y ), 
% 0.43/1.08    universal_class ) = null_class }.
% 0.43/1.08  { ! member( Y, universal_class ), restrict( X, singleton( Y ), 
% 0.43/1.08    universal_class ) = null_class, member( Y, domain_of( X ) ) }.
% 0.43/1.08  { ! member( ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ), member
% 0.43/1.08    ( ordered_pair( ordered_pair( Y, Z ), T ), cross_product( cross_product( 
% 0.43/1.08    universal_class, universal_class ), universal_class ) ) }.
% 0.43/1.08  { ! member( ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ), member
% 0.43/1.08    ( ordered_pair( ordered_pair( Z, T ), Y ), X ) }.
% 0.43/1.08  { ! member( ordered_pair( ordered_pair( Y, Z ), T ), cross_product( 
% 0.43/1.08    cross_product( universal_class, universal_class ), universal_class ) ), !
% 0.43/1.08     member( ordered_pair( ordered_pair( Z, T ), Y ), X ), member( 
% 0.43/1.08    ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ) }.
% 0.43/1.08  { subclass( rotate( X ), cross_product( cross_product( universal_class, 
% 0.43/1.08    universal_class ), universal_class ) ) }.
% 0.43/1.08  { ! member( ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ), member( 
% 0.43/1.08    ordered_pair( ordered_pair( X, Y ), Z ), cross_product( cross_product( 
% 0.43/1.08    universal_class, universal_class ), universal_class ) ) }.
% 0.43/1.08  { ! member( ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ), member( 
% 0.43/1.08    ordered_pair( ordered_pair( Y, X ), Z ), T ) }.
% 0.43/1.08  { ! member( ordered_pair( ordered_pair( X, Y ), Z ), cross_product( 
% 0.43/1.08    cross_product( universal_class, universal_class ), universal_class ) ), !
% 0.43/1.08     member( ordered_pair( ordered_pair( Y, X ), Z ), T ), member( 
% 0.43/1.08    ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ) }.
% 0.43/1.08  { subclass( flip( X ), cross_product( cross_product( universal_class, 
% 0.89/1.29    universal_class ), universal_class ) ) }.
% 0.89/1.29  { ! member( Z, union( X, Y ) ), member( Z, X ), member( Z, Y ) }.
% 0.89/1.29  { ! member( Z, X ), member( Z, union( X, Y ) ) }.
% 0.89/1.29  { ! member( Z, Y ), member( Z, union( X, Y ) ) }.
% 0.89/1.29  { successor( X ) = union( X, singleton( X ) ) }.
% 0.89/1.29  { subclass( successor_relation, cross_product( universal_class, 
% 0.89/1.29    universal_class ) ) }.
% 0.89/1.29  { ! member( ordered_pair( X, Y ), successor_relation ), member( X, 
% 0.89/1.29    universal_class ) }.
% 0.89/1.29  { ! member( ordered_pair( X, Y ), successor_relation ), alpha2( X, Y ) }.
% 0.89/1.29  { ! member( X, universal_class ), ! alpha2( X, Y ), member( ordered_pair( X
% 0.89/1.29    , Y ), successor_relation ) }.
% 0.89/1.29  { ! alpha2( X, Y ), member( Y, universal_class ) }.
% 0.89/1.29  { ! alpha2( X, Y ), successor( X ) = Y }.
% 0.89/1.29  { ! member( Y, universal_class ), ! successor( X ) = Y, alpha2( X, Y ) }.
% 0.89/1.29  { inverse( X ) = domain_of( flip( cross_product( X, universal_class ) ) ) }
% 0.89/1.29    .
% 0.89/1.29  { range_of( X ) = domain_of( inverse( X ) ) }.
% 0.89/1.29  { image( Y, X ) = range_of( restrict( Y, X, universal_class ) ) }.
% 0.89/1.29  { ! inductive( X ), member( null_class, X ) }.
% 0.89/1.29  { ! inductive( X ), subclass( image( successor_relation, X ), X ) }.
% 0.89/1.29  { ! member( null_class, X ), ! subclass( image( successor_relation, X ), X
% 0.89/1.29     ), inductive( X ) }.
% 0.89/1.29  { member( skol2, universal_class ) }.
% 0.89/1.29  { inductive( skol2 ) }.
% 0.89/1.29  { ! inductive( X ), subclass( skol2, X ) }.
% 0.89/1.29  { ! member( X, sum_class( Y ) ), member( skol3( Z, Y ), Y ) }.
% 0.89/1.29  { ! member( X, sum_class( Y ) ), member( X, skol3( X, Y ) ) }.
% 0.89/1.29  { ! member( X, Z ), ! member( Z, Y ), member( X, sum_class( Y ) ) }.
% 0.89/1.29  { ! member( X, universal_class ), member( sum_class( X ), universal_class )
% 0.89/1.29     }.
% 0.89/1.29  { ! member( X, power_class( Y ) ), member( X, universal_class ) }.
% 0.89/1.29  { ! member( X, power_class( Y ) ), subclass( X, Y ) }.
% 0.89/1.29  { ! member( X, universal_class ), ! subclass( X, Y ), member( X, 
% 0.89/1.29    power_class( Y ) ) }.
% 0.89/1.29  { ! member( X, universal_class ), member( power_class( X ), universal_class
% 0.89/1.29     ) }.
% 0.89/1.29  { subclass( compose( Y, X ), cross_product( universal_class, 
% 0.89/1.29    universal_class ) ) }.
% 0.89/1.29  { ! member( ordered_pair( Z, T ), compose( Y, X ) ), member( Z, 
% 0.89/1.29    universal_class ) }.
% 0.89/1.29  { ! member( ordered_pair( Z, T ), compose( Y, X ) ), member( T, image( Y, 
% 0.89/1.29    image( X, singleton( Z ) ) ) ) }.
% 0.89/1.29  { ! member( Z, universal_class ), ! member( T, image( Y, image( X, 
% 0.89/1.29    singleton( Z ) ) ) ), member( ordered_pair( Z, T ), compose( Y, X ) ) }.
% 0.89/1.29  { ! member( X, identity_relation ), member( skol4( Y ), universal_class ) }
% 0.89/1.29    .
% 0.89/1.29  { ! member( X, identity_relation ), X = ordered_pair( skol4( X ), skol4( X
% 0.89/1.29     ) ) }.
% 0.89/1.29  { ! member( Y, universal_class ), ! X = ordered_pair( Y, Y ), member( X, 
% 0.89/1.29    identity_relation ) }.
% 0.89/1.29  { ! function( X ), subclass( X, cross_product( universal_class, 
% 0.89/1.29    universal_class ) ) }.
% 0.89/1.29  { ! function( X ), subclass( compose( X, inverse( X ) ), identity_relation
% 0.89/1.29     ) }.
% 0.89/1.29  { ! subclass( X, cross_product( universal_class, universal_class ) ), ! 
% 0.89/1.29    subclass( compose( X, inverse( X ) ), identity_relation ), function( X )
% 0.89/1.29     }.
% 0.89/1.29  { ! member( X, universal_class ), ! function( Y ), member( image( Y, X ), 
% 0.89/1.29    universal_class ) }.
% 0.89/1.29  { ! disjoint( X, Y ), ! member( Z, X ), ! member( Z, Y ) }.
% 0.89/1.29  { member( skol5( Z, Y ), Y ), disjoint( X, Y ) }.
% 0.89/1.29  { member( skol5( X, Y ), X ), disjoint( X, Y ) }.
% 0.89/1.29  { X = null_class, member( skol6( Y ), universal_class ) }.
% 0.89/1.29  { X = null_class, member( skol6( X ), X ) }.
% 0.89/1.29  { X = null_class, disjoint( skol6( X ), X ) }.
% 0.89/1.29  { apply( X, Y ) = sum_class( image( X, singleton( Y ) ) ) }.
% 0.89/1.29  { function( skol7 ) }.
% 0.89/1.29  { ! member( X, universal_class ), X = null_class, member( apply( skol7, X )
% 0.89/1.29    , X ) }.
% 0.89/1.29  { member( skol8, universal_class ) }.
% 0.89/1.29  { ! member( skol8, singleton( skol8 ) ) }.
% 0.89/1.29  
% 0.89/1.29  percentage equality = 0.144330, percentage horn = 0.884211
% 0.89/1.29  This is a problem with some equality
% 0.89/1.29  
% 0.89/1.29  
% 0.89/1.29  
% 0.89/1.29  Options Used:
% 0.89/1.29  
% 0.89/1.29  useres =            1
% 0.89/1.29  useparamod =        1
% 0.89/1.29  useeqrefl =         1
% 0.89/1.29  useeqfact =         1
% 0.89/1.29  usefactor =         1
% 0.89/1.29  usesimpsplitting =  0
% 0.89/1.29  usesimpdemod =      5
% 0.89/1.29  usesimpres =        3
% 0.89/1.29  
% 0.89/1.29  resimpinuse      =  1000
% 0.89/1.29  resimpclauses =     20000
% 0.89/1.29  substype =          eqrewr
% 0.89/1.29  backwardsubs =      1
% 0.89/1.29  selectoldest =      5
% 0.89/1.29  
% 0.89/1.29  litorderings [0] =  split
% 0.89/1.29  litorderings [1] =  extend the termordering, first sorting on arguments
% 5.75/6.12  
% 5.75/6.12  termordering =      kbo
% 5.75/6.12  
% 5.75/6.12  litapriori =        0
% 5.75/6.12  termapriori =       1
% 5.75/6.12  litaposteriori =    0
% 5.75/6.12  termaposteriori =   0
% 5.75/6.12  demodaposteriori =  0
% 5.75/6.12  ordereqreflfact =   0
% 5.75/6.12  
% 5.75/6.12  litselect =         negord
% 5.75/6.12  
% 5.75/6.12  maxweight =         15
% 5.75/6.12  maxdepth =          30000
% 5.75/6.12  maxlength =         115
% 5.75/6.12  maxnrvars =         195
% 5.75/6.12  excuselevel =       1
% 5.75/6.12  increasemaxweight = 1
% 5.75/6.12  
% 5.75/6.12  maxselected =       10000000
% 5.75/6.12  maxnrclauses =      10000000
% 5.75/6.12  
% 5.75/6.12  showgenerated =    0
% 5.75/6.12  showkept =         0
% 5.75/6.12  showselected =     0
% 5.75/6.12  showdeleted =      0
% 5.75/6.12  showresimp =       1
% 5.75/6.12  showstatus =       2000
% 5.75/6.12  
% 5.75/6.12  prologoutput =     0
% 5.75/6.12  nrgoals =          5000000
% 5.75/6.12  totalproof =       1
% 5.75/6.12  
% 5.75/6.12  Symbols occurring in the translation:
% 5.75/6.12  
% 5.75/6.12  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 5.75/6.12  .  [1, 2]      (w:1, o:44, a:1, s:1, b:0), 
% 5.75/6.12  !  [4, 1]      (w:0, o:23, a:1, s:1, b:0), 
% 5.75/6.12  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 5.75/6.12  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 5.75/6.12  subclass  [37, 2]      (w:1, o:68, a:1, s:1, b:0), 
% 5.75/6.12  member  [39, 2]      (w:1, o:69, a:1, s:1, b:0), 
% 5.75/6.12  universal_class  [40, 0]      (w:1, o:12, a:1, s:1, b:0), 
% 5.75/6.12  unordered_pair  [41, 2]      (w:1, o:70, a:1, s:1, b:0), 
% 5.75/6.12  singleton  [42, 1]      (w:1, o:30, a:1, s:1, b:0), 
% 5.75/6.12  ordered_pair  [43, 2]      (w:1, o:71, a:1, s:1, b:0), 
% 5.75/6.12  cross_product  [45, 2]      (w:1, o:72, a:1, s:1, b:0), 
% 5.75/6.12  first  [46, 1]      (w:1, o:31, a:1, s:1, b:0), 
% 5.75/6.12  second  [47, 1]      (w:1, o:32, a:1, s:1, b:0), 
% 5.75/6.12  element_relation  [49, 0]      (w:1, o:16, a:1, s:1, b:0), 
% 5.75/6.12  intersection  [50, 2]      (w:1, o:74, a:1, s:1, b:0), 
% 5.75/6.12  complement  [51, 1]      (w:1, o:33, a:1, s:1, b:0), 
% 5.75/6.12  restrict  [53, 3]      (w:1, o:83, a:1, s:1, b:0), 
% 5.75/6.12  null_class  [54, 0]      (w:1, o:17, a:1, s:1, b:0), 
% 5.75/6.12  domain_of  [55, 1]      (w:1, o:34, a:1, s:1, b:0), 
% 5.75/6.12  rotate  [57, 1]      (w:1, o:28, a:1, s:1, b:0), 
% 5.75/6.12  flip  [58, 1]      (w:1, o:35, a:1, s:1, b:0), 
% 5.75/6.12  union  [59, 2]      (w:1, o:75, a:1, s:1, b:0), 
% 5.75/6.12  successor  [60, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 5.75/6.12  successor_relation  [61, 0]      (w:1, o:18, a:1, s:1, b:0), 
% 5.75/6.12  inverse  [62, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 5.75/6.12  range_of  [63, 1]      (w:1, o:29, a:1, s:1, b:0), 
% 5.75/6.12  image  [64, 2]      (w:1, o:73, a:1, s:1, b:0), 
% 5.75/6.12  inductive  [65, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 5.75/6.12  sum_class  [66, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 5.75/6.12  power_class  [67, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 5.75/6.12  compose  [69, 2]      (w:1, o:76, a:1, s:1, b:0), 
% 5.75/6.12  identity_relation  [70, 0]      (w:1, o:19, a:1, s:1, b:0), 
% 5.75/6.12  function  [72, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 5.75/6.12  disjoint  [73, 2]      (w:1, o:77, a:1, s:1, b:0), 
% 5.75/6.12  apply  [74, 2]      (w:1, o:78, a:1, s:1, b:0), 
% 5.75/6.12  alpha1  [75, 3]      (w:1, o:84, a:1, s:1, b:1), 
% 5.75/6.12  alpha2  [76, 2]      (w:1, o:79, a:1, s:1, b:1), 
% 5.75/6.12  skol1  [77, 2]      (w:1, o:80, a:1, s:1, b:1), 
% 5.75/6.12  skol2  [78, 0]      (w:1, o:20, a:1, s:1, b:1), 
% 5.75/6.12  skol3  [79, 2]      (w:1, o:81, a:1, s:1, b:1), 
% 5.75/6.12  skol4  [80, 1]      (w:1, o:42, a:1, s:1, b:1), 
% 5.75/6.12  skol5  [81, 2]      (w:1, o:82, a:1, s:1, b:1), 
% 5.75/6.12  skol6  [82, 1]      (w:1, o:43, a:1, s:1, b:1), 
% 5.75/6.12  skol7  [83, 0]      (w:1, o:21, a:1, s:1, b:1), 
% 5.75/6.12  skol8  [84, 0]      (w:1, o:22, a:1, s:1, b:1).
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Starting Search:
% 5.75/6.12  
% 5.75/6.12  *** allocated 15000 integers for clauses
% 5.75/6.12  *** allocated 22500 integers for clauses
% 5.75/6.12  *** allocated 33750 integers for clauses
% 5.75/6.12  *** allocated 15000 integers for termspace/termends
% 5.75/6.12  *** allocated 50625 integers for clauses
% 5.75/6.12  *** allocated 22500 integers for termspace/termends
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 75937 integers for clauses
% 5.75/6.12  *** allocated 33750 integers for termspace/termends
% 5.75/6.12  *** allocated 113905 integers for clauses
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    5070
% 5.75/6.12  Kept:         2032
% 5.75/6.12  Inuse:        123
% 5.75/6.12  Deleted:      5
% 5.75/6.12  Deletedinuse: 2
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 170857 integers for clauses
% 5.75/6.12  *** allocated 50625 integers for termspace/termends
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 75937 integers for termspace/termends
% 5.75/6.12  *** allocated 256285 integers for clauses
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    9903
% 5.75/6.12  Kept:         4053
% 5.75/6.12  Inuse:        197
% 5.75/6.12  Deleted:      50
% 5.75/6.12  Deletedinuse: 19
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 113905 integers for termspace/termends
% 5.75/6.12  *** allocated 384427 integers for clauses
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    13665
% 5.75/6.12  Kept:         6075
% 5.75/6.12  Inuse:        252
% 5.75/6.12  Deleted:      62
% 5.75/6.12  Deletedinuse: 22
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    17460
% 5.75/6.12  Kept:         8100
% 5.75/6.12  Inuse:        312
% 5.75/6.12  Deleted:      76
% 5.75/6.12  Deletedinuse: 30
% 5.75/6.12  
% 5.75/6.12  *** allocated 576640 integers for clauses
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 170857 integers for termspace/termends
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    24200
% 5.75/6.12  Kept:         10119
% 5.75/6.12  Inuse:        358
% 5.75/6.12  Deleted:      85
% 5.75/6.12  Deletedinuse: 34
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 864960 integers for clauses
% 5.75/6.12  *** allocated 256285 integers for termspace/termends
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    29560
% 5.75/6.12  Kept:         12908
% 5.75/6.12  Inuse:        365
% 5.75/6.12  Deleted:      87
% 5.75/6.12  Deletedinuse: 36
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    34284
% 5.75/6.12  Kept:         14916
% 5.75/6.12  Inuse:        390
% 5.75/6.12  Deleted:      88
% 5.75/6.12  Deletedinuse: 36
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    39248
% 5.75/6.12  Kept:         16969
% 5.75/6.12  Inuse:        437
% 5.75/6.12  Deleted:      94
% 5.75/6.12  Deletedinuse: 40
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    43441
% 5.75/6.12  Kept:         19040
% 5.75/6.12  Inuse:        482
% 5.75/6.12  Deleted:      94
% 5.75/6.12  Deletedinuse: 40
% 5.75/6.12  
% 5.75/6.12  *** allocated 1297440 integers for clauses
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 384427 integers for termspace/termends
% 5.75/6.12  Resimplifying clauses:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    49302
% 5.75/6.12  Kept:         21315
% 5.75/6.12  Inuse:        509
% 5.75/6.12  Deleted:      908
% 5.75/6.12  Deletedinuse: 40
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    57096
% 5.75/6.12  Kept:         23327
% 5.75/6.12  Inuse:        544
% 5.75/6.12  Deleted:      908
% 5.75/6.12  Deletedinuse: 40
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    65094
% 5.75/6.12  Kept:         25350
% 5.75/6.12  Inuse:        595
% 5.75/6.12  Deleted:      910
% 5.75/6.12  Deletedinuse: 41
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    71846
% 5.75/6.12  Kept:         27352
% 5.75/6.12  Inuse:        652
% 5.75/6.12  Deleted:      910
% 5.75/6.12  Deletedinuse: 41
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  *** allocated 576640 integers for termspace/termends
% 5.75/6.12  *** allocated 1946160 integers for clauses
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    78050
% 5.75/6.12  Kept:         29381
% 5.75/6.12  Inuse:        710
% 5.75/6.12  Deleted:      910
% 5.75/6.12  Deletedinuse: 41
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    84622
% 5.75/6.12  Kept:         31428
% 5.75/6.12  Inuse:        775
% 5.75/6.12  Deleted:      939
% 5.75/6.12  Deletedinuse: 57
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Intermediate Status:
% 5.75/6.12  Generated:    90000
% 5.75/6.12  Kept:         33468
% 5.75/6.12  Inuse:        821
% 5.75/6.12  Deleted:      956
% 5.75/6.12  Deletedinuse: 67
% 5.75/6.12  
% 5.75/6.12  Resimplifying inuse:
% 5.75/6.12  Done
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Bliksems!, er is een bewijs:
% 5.75/6.12  % SZS status Theorem
% 5.75/6.12  % SZS output start Refutation
% 5.75/6.12  
% 5.75/6.12  (2) {G0,W8,D3,L2,V2,M2} I { member( skol1( X, Y ), X ), subclass( X, Y )
% 5.75/6.12     }.
% 5.75/6.12  (4) {G0,W6,D2,L2,V2,M2} I { ! X = Y, subclass( X, Y ) }.
% 5.75/6.12  (5) {G0,W9,D2,L3,V2,M3} I { ! subclass( X, Y ), ! subclass( Y, X ), X = Y
% 5.75/6.12     }.
% 5.75/6.12  (7) {G0,W9,D3,L2,V3,M2} I { ! member( X, unordered_pair( Y, Z ) ), alpha1( 
% 5.75/6.12    X, Y, Z ) }.
% 5.75/6.12  (8) {G0,W12,D3,L3,V3,M3} I { ! member( X, universal_class ), ! alpha1( X, Y
% 5.75/6.12    , Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.75/6.12  (9) {G0,W10,D2,L3,V3,M3} I { ! alpha1( X, Y, Z ), X = Y, X = Z }.
% 5.75/6.12  (11) {G0,W7,D2,L2,V3,M2} I { ! X = Z, alpha1( X, Y, Z ) }.
% 5.75/6.12  (13) {G0,W6,D3,L1,V1,M1} I { unordered_pair( X, X ) ==> singleton( X ) }.
% 5.75/6.12  (32) {G0,W3,D2,L1,V1,M1} I { ! member( X, null_class ) }.
% 5.75/6.12  (92) {G0,W3,D2,L1,V0,M1} I { member( skol8, universal_class ) }.
% 5.75/6.12  (93) {G0,W4,D3,L1,V0,M1} I { ! member( skol8, singleton( skol8 ) ) }.
% 5.75/6.12  (95) {G1,W7,D2,L2,V2,M2} F(9) { ! alpha1( X, Y, Y ), X = Y }.
% 5.75/6.12  (99) {G1,W4,D2,L1,V2,M1} Q(11) { alpha1( X, Y, X ) }.
% 5.75/6.12  (126) {G1,W3,D2,L1,V1,M1} R(2,32) { subclass( null_class, X ) }.
% 5.75/6.12  (144) {G1,W6,D2,L2,V2,M2} R(5,4);r(4) { X = Y, ! Y = X }.
% 5.75/6.12  (146) {G2,W6,D2,L2,V1,M2} R(5,126) { ! subclass( X, null_class ), 
% 5.75/6.12    null_class = X }.
% 5.75/6.12  (188) {G1,W13,D4,L2,V3,M2} R(7,2) { alpha1( skol1( unordered_pair( X, Y ), 
% 5.75/6.12    Z ), X, Y ), subclass( unordered_pair( X, Y ), Z ) }.
% 5.75/6.12  (223) {G2,W11,D3,L3,V3,M3} P(144,2) { member( Z, X ), subclass( X, Y ), ! Z
% 5.75/6.12     = skol1( X, Y ) }.
% 5.75/6.12  (251) {G1,W9,D3,L2,V2,M2} R(8,92) { ! alpha1( skol8, X, Y ), member( skol8
% 5.75/6.12    , unordered_pair( X, Y ) ) }.
% 5.75/6.12  (26740) {G2,W10,D4,L2,V2,M2} R(188,95);d(13);d(13) { subclass( singleton( X
% 5.75/6.12     ), Y ), skol1( singleton( X ), Y ) ==> X }.
% 5.75/6.12  (30601) {G3,W4,D3,L1,V1,M1} R(223,93);d(26740);q { subclass( singleton( 
% 5.75/6.12    skol8 ), X ) }.
% 5.75/6.12  (30645) {G4,W4,D3,L1,V0,M1} R(30601,146) { singleton( skol8 ) ==> 
% 5.75/6.12    null_class }.
% 5.75/6.12  (31152) {G5,W8,D3,L2,V1,M2} P(95,30645) { singleton( X ) ==> null_class, ! 
% 5.75/6.12    alpha1( skol8, X, X ) }.
% 5.75/6.12  (34484) {G2,W13,D3,L3,V3,M3} P(95,251) { ! alpha1( X, Y, Z ), member( X, 
% 5.75/6.12    unordered_pair( Y, Z ) ), ! alpha1( skol8, X, X ) }.
% 5.75/6.12  (34494) {G6,W3,D2,L1,V0,M1} F(34484);d(13);d(31152);r(99) { member( skol8, 
% 5.75/6.12    null_class ) }.
% 5.75/6.12  (34495) {G7,W0,D0,L0,V0,M0} S(34494);r(32) {  }.
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  % SZS output end Refutation
% 5.75/6.12  found a proof!
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Unprocessed initial clauses:
% 5.75/6.12  
% 5.75/6.12  (34497) {G0,W9,D2,L3,V3,M3}  { ! subclass( X, Y ), ! member( Z, X ), member
% 5.75/6.12    ( Z, Y ) }.
% 5.75/6.12  (34498) {G0,W8,D3,L2,V3,M2}  { ! member( skol1( Z, Y ), Y ), subclass( X, Y
% 5.75/6.12     ) }.
% 5.75/6.12  (34499) {G0,W8,D3,L2,V2,M2}  { member( skol1( X, Y ), X ), subclass( X, Y )
% 5.75/6.12     }.
% 5.75/6.12  (34500) {G0,W3,D2,L1,V1,M1}  { subclass( X, universal_class ) }.
% 5.75/6.12  (34501) {G0,W6,D2,L2,V2,M2}  { ! X = Y, subclass( X, Y ) }.
% 5.75/6.12  (34502) {G0,W6,D2,L2,V2,M2}  { ! X = Y, subclass( Y, X ) }.
% 5.75/6.12  (34503) {G0,W9,D2,L3,V2,M3}  { ! subclass( X, Y ), ! subclass( Y, X ), X = 
% 5.75/6.12    Y }.
% 5.75/6.12  (34504) {G0,W8,D3,L2,V3,M2}  { ! member( X, unordered_pair( Y, Z ) ), 
% 5.75/6.12    member( X, universal_class ) }.
% 5.75/6.12  (34505) {G0,W9,D3,L2,V3,M2}  { ! member( X, unordered_pair( Y, Z ) ), 
% 5.75/6.12    alpha1( X, Y, Z ) }.
% 5.75/6.12  (34506) {G0,W12,D3,L3,V3,M3}  { ! member( X, universal_class ), ! alpha1( X
% 5.75/6.12    , Y, Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.75/6.12  (34507) {G0,W10,D2,L3,V3,M3}  { ! alpha1( X, Y, Z ), X = Y, X = Z }.
% 5.75/6.12  (34508) {G0,W7,D2,L2,V3,M2}  { ! X = Y, alpha1( X, Y, Z ) }.
% 5.75/6.12  (34509) {G0,W7,D2,L2,V3,M2}  { ! X = Z, alpha1( X, Y, Z ) }.
% 5.75/6.12  (34510) {G0,W5,D3,L1,V2,M1}  { member( unordered_pair( X, Y ), 
% 5.75/6.12    universal_class ) }.
% 5.75/6.12  (34511) {G0,W6,D3,L1,V1,M1}  { singleton( X ) = unordered_pair( X, X ) }.
% 5.75/6.12  (34512) {G0,W11,D5,L1,V2,M1}  { ordered_pair( X, Y ) = unordered_pair( 
% 5.75/6.12    singleton( X ), unordered_pair( X, singleton( Y ) ) ) }.
% 5.75/6.12  (34513) {G0,W10,D3,L2,V4,M2}  { ! member( ordered_pair( X, Y ), 
% 5.75/6.12    cross_product( Z, T ) ), member( X, Z ) }.
% 5.75/6.12  (34514) {G0,W10,D3,L2,V4,M2}  { ! member( ordered_pair( X, Y ), 
% 5.75/6.12    cross_product( Z, T ) ), member( Y, T ) }.
% 5.75/6.12  (34515) {G0,W13,D3,L3,V4,M3}  { ! member( X, Z ), ! member( Y, T ), member
% 5.75/6.12    ( ordered_pair( X, Y ), cross_product( Z, T ) ) }.
% 5.75/6.12  (34516) {G0,W12,D4,L3,V2,M3}  { ! member( X, universal_class ), ! member( Y
% 5.75/6.12    , universal_class ), first( ordered_pair( X, Y ) ) = X }.
% 5.75/6.12  (34517) {G0,W12,D4,L3,V2,M3}  { ! member( X, universal_class ), ! member( Y
% 5.75/6.12    , universal_class ), second( ordered_pair( X, Y ) ) = Y }.
% 5.75/6.12  (34518) {G0,W12,D4,L2,V3,M2}  { ! member( X, cross_product( Y, Z ) ), X = 
% 5.75/6.12    ordered_pair( first( X ), second( X ) ) }.
% 5.75/6.12  (34519) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.75/6.12    element_relation ), member( Y, universal_class ) }.
% 5.75/6.12  (34520) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.75/6.12    element_relation ), member( X, Y ) }.
% 5.75/6.12  (34521) {G0,W11,D3,L3,V2,M3}  { ! member( Y, universal_class ), ! member( X
% 5.75/6.12    , Y ), member( ordered_pair( X, Y ), element_relation ) }.
% 5.75/6.12  (34522) {G0,W5,D3,L1,V0,M1}  { subclass( element_relation, cross_product( 
% 5.75/6.12    universal_class, universal_class ) ) }.
% 5.75/6.12  (34523) {G0,W8,D3,L2,V3,M2}  { ! member( Z, intersection( X, Y ) ), member
% 5.75/6.12    ( Z, X ) }.
% 5.75/6.12  (34524) {G0,W8,D3,L2,V3,M2}  { ! member( Z, intersection( X, Y ) ), member
% 5.75/6.12    ( Z, Y ) }.
% 5.75/6.12  (34525) {G0,W11,D3,L3,V3,M3}  { ! member( Z, X ), ! member( Z, Y ), member
% 5.75/6.12    ( Z, intersection( X, Y ) ) }.
% 5.75/6.12  (34526) {G0,W7,D3,L2,V2,M2}  { ! member( Y, complement( X ) ), member( Y, 
% 5.75/6.12    universal_class ) }.
% 5.75/6.12  (34527) {G0,W7,D3,L2,V2,M2}  { ! member( Y, complement( X ) ), ! member( Y
% 5.75/6.12    , X ) }.
% 5.75/6.12  (34528) {G0,W10,D3,L3,V2,M3}  { ! member( Y, universal_class ), member( Y, 
% 5.75/6.12    X ), member( Y, complement( X ) ) }.
% 5.75/6.12  (34529) {G0,W10,D4,L1,V3,M1}  { restrict( Y, X, Z ) = intersection( Y, 
% 5.75/6.12    cross_product( X, Z ) ) }.
% 5.75/6.12  (34530) {G0,W3,D2,L1,V1,M1}  { ! member( X, null_class ) }.
% 5.75/6.12  (34531) {G0,W7,D3,L2,V2,M2}  { ! member( Y, domain_of( X ) ), member( Y, 
% 5.75/6.12    universal_class ) }.
% 5.75/6.12  (34532) {G0,W11,D4,L2,V2,M2}  { ! member( Y, domain_of( X ) ), ! restrict( 
% 5.75/6.12    X, singleton( Y ), universal_class ) = null_class }.
% 5.75/6.12  (34533) {G0,W14,D4,L3,V2,M3}  { ! member( Y, universal_class ), restrict( X
% 5.75/6.12    , singleton( Y ), universal_class ) = null_class, member( Y, domain_of( X
% 5.75/6.12     ) ) }.
% 5.75/6.12  (34534) {G0,W19,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( Y, Z
% 5.75/6.12     ), T ), rotate( X ) ), member( ordered_pair( ordered_pair( Y, Z ), T ), 
% 5.75/6.12    cross_product( cross_product( universal_class, universal_class ), 
% 5.75/6.12    universal_class ) ) }.
% 5.75/6.12  (34535) {G0,W15,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( Y, Z
% 5.75/6.12     ), T ), rotate( X ) ), member( ordered_pair( ordered_pair( Z, T ), Y ), 
% 5.75/6.12    X ) }.
% 5.75/6.12  (34536) {G0,W26,D4,L3,V4,M3}  { ! member( ordered_pair( ordered_pair( Y, Z
% 5.75/6.12     ), T ), cross_product( cross_product( universal_class, universal_class )
% 5.75/6.12    , universal_class ) ), ! member( ordered_pair( ordered_pair( Z, T ), Y )
% 5.75/6.12    , X ), member( ordered_pair( ordered_pair( Y, Z ), T ), rotate( X ) ) }.
% 5.75/6.12  (34537) {G0,W8,D4,L1,V1,M1}  { subclass( rotate( X ), cross_product( 
% 5.75/6.12    cross_product( universal_class, universal_class ), universal_class ) )
% 5.75/6.12     }.
% 5.75/6.12  (34538) {G0,W19,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( X, Y
% 5.75/6.12     ), Z ), flip( T ) ), member( ordered_pair( ordered_pair( X, Y ), Z ), 
% 5.75/6.12    cross_product( cross_product( universal_class, universal_class ), 
% 5.75/6.12    universal_class ) ) }.
% 5.75/6.12  (34539) {G0,W15,D4,L2,V4,M2}  { ! member( ordered_pair( ordered_pair( X, Y
% 5.75/6.12     ), Z ), flip( T ) ), member( ordered_pair( ordered_pair( Y, X ), Z ), T
% 5.75/6.12     ) }.
% 5.75/6.12  (34540) {G0,W26,D4,L3,V4,M3}  { ! member( ordered_pair( ordered_pair( X, Y
% 5.75/6.12     ), Z ), cross_product( cross_product( universal_class, universal_class )
% 5.75/6.12    , universal_class ) ), ! member( ordered_pair( ordered_pair( Y, X ), Z )
% 5.75/6.12    , T ), member( ordered_pair( ordered_pair( X, Y ), Z ), flip( T ) ) }.
% 5.75/6.12  (34541) {G0,W8,D4,L1,V1,M1}  { subclass( flip( X ), cross_product( 
% 5.75/6.12    cross_product( universal_class, universal_class ), universal_class ) )
% 5.75/6.12     }.
% 5.75/6.12  (34542) {G0,W11,D3,L3,V3,M3}  { ! member( Z, union( X, Y ) ), member( Z, X
% 5.75/6.12     ), member( Z, Y ) }.
% 5.75/6.12  (34543) {G0,W8,D3,L2,V3,M2}  { ! member( Z, X ), member( Z, union( X, Y ) )
% 5.75/6.12     }.
% 5.75/6.12  (34544) {G0,W8,D3,L2,V3,M2}  { ! member( Z, Y ), member( Z, union( X, Y ) )
% 5.75/6.12     }.
% 5.75/6.12  (34545) {G0,W7,D4,L1,V1,M1}  { successor( X ) = union( X, singleton( X ) )
% 5.75/6.12     }.
% 5.75/6.12  (34546) {G0,W5,D3,L1,V0,M1}  { subclass( successor_relation, cross_product
% 5.75/6.12    ( universal_class, universal_class ) ) }.
% 5.75/6.12  (34547) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.75/6.12    successor_relation ), member( X, universal_class ) }.
% 5.75/6.12  (34548) {G0,W8,D3,L2,V2,M2}  { ! member( ordered_pair( X, Y ), 
% 5.75/6.12    successor_relation ), alpha2( X, Y ) }.
% 5.75/6.12  (34549) {G0,W11,D3,L3,V2,M3}  { ! member( X, universal_class ), ! alpha2( X
% 5.75/6.12    , Y ), member( ordered_pair( X, Y ), successor_relation ) }.
% 5.75/6.12  (34550) {G0,W6,D2,L2,V2,M2}  { ! alpha2( X, Y ), member( Y, universal_class
% 5.75/6.12     ) }.
% 5.75/6.12  (34551) {G0,W7,D3,L2,V2,M2}  { ! alpha2( X, Y ), successor( X ) = Y }.
% 5.75/6.12  (34552) {G0,W10,D3,L3,V2,M3}  { ! member( Y, universal_class ), ! successor
% 5.75/6.12    ( X ) = Y, alpha2( X, Y ) }.
% 5.75/6.12  (34553) {G0,W8,D5,L1,V1,M1}  { inverse( X ) = domain_of( flip( 
% 5.75/6.12    cross_product( X, universal_class ) ) ) }.
% 5.75/6.12  (34554) {G0,W6,D4,L1,V1,M1}  { range_of( X ) = domain_of( inverse( X ) )
% 5.75/6.12     }.
% 5.75/6.12  (34555) {G0,W9,D4,L1,V2,M1}  { image( Y, X ) = range_of( restrict( Y, X, 
% 5.75/6.12    universal_class ) ) }.
% 5.75/6.12  (34556) {G0,W5,D2,L2,V1,M2}  { ! inductive( X ), member( null_class, X )
% 5.75/6.12     }.
% 5.75/6.12  (34557) {G0,W7,D3,L2,V1,M2}  { ! inductive( X ), subclass( image( 
% 5.75/6.12    successor_relation, X ), X ) }.
% 5.75/6.12  (34558) {G0,W10,D3,L3,V1,M3}  { ! member( null_class, X ), ! subclass( 
% 5.75/6.12    image( successor_relation, X ), X ), inductive( X ) }.
% 5.75/6.12  (34559) {G0,W3,D2,L1,V0,M1}  { member( skol2, universal_class ) }.
% 5.75/6.12  (34560) {G0,W2,D2,L1,V0,M1}  { inductive( skol2 ) }.
% 5.75/6.12  (34561) {G0,W5,D2,L2,V1,M2}  { ! inductive( X ), subclass( skol2, X ) }.
% 5.75/6.12  (34562) {G0,W9,D3,L2,V3,M2}  { ! member( X, sum_class( Y ) ), member( skol3
% 5.75/6.12    ( Z, Y ), Y ) }.
% 5.75/6.12  (34563) {G0,W9,D3,L2,V2,M2}  { ! member( X, sum_class( Y ) ), member( X, 
% 5.75/6.12    skol3( X, Y ) ) }.
% 5.75/6.12  (34564) {G0,W10,D3,L3,V3,M3}  { ! member( X, Z ), ! member( Z, Y ), member
% 5.75/6.12    ( X, sum_class( Y ) ) }.
% 5.75/6.12  (34565) {G0,W7,D3,L2,V1,M2}  { ! member( X, universal_class ), member( 
% 5.75/6.12    sum_class( X ), universal_class ) }.
% 5.75/6.12  (34566) {G0,W7,D3,L2,V2,M2}  { ! member( X, power_class( Y ) ), member( X, 
% 5.75/6.12    universal_class ) }.
% 5.75/6.12  (34567) {G0,W7,D3,L2,V2,M2}  { ! member( X, power_class( Y ) ), subclass( X
% 5.75/6.12    , Y ) }.
% 5.75/6.12  (34568) {G0,W10,D3,L3,V2,M3}  { ! member( X, universal_class ), ! subclass
% 5.75/6.12    ( X, Y ), member( X, power_class( Y ) ) }.
% 5.75/6.12  (34569) {G0,W7,D3,L2,V1,M2}  { ! member( X, universal_class ), member( 
% 5.75/6.12    power_class( X ), universal_class ) }.
% 5.75/6.12  (34570) {G0,W7,D3,L1,V2,M1}  { subclass( compose( Y, X ), cross_product( 
% 5.75/6.12    universal_class, universal_class ) ) }.
% 5.75/6.12  (34571) {G0,W10,D3,L2,V4,M2}  { ! member( ordered_pair( Z, T ), compose( Y
% 5.75/6.12    , X ) ), member( Z, universal_class ) }.
% 5.75/6.12  (34572) {G0,W15,D5,L2,V4,M2}  { ! member( ordered_pair( Z, T ), compose( Y
% 5.75/6.12    , X ) ), member( T, image( Y, image( X, singleton( Z ) ) ) ) }.
% 5.75/6.12  (34573) {G0,W18,D5,L3,V4,M3}  { ! member( Z, universal_class ), ! member( T
% 5.75/6.12    , image( Y, image( X, singleton( Z ) ) ) ), member( ordered_pair( Z, T )
% 5.75/6.12    , compose( Y, X ) ) }.
% 5.75/6.12  (34574) {G0,W7,D3,L2,V2,M2}  { ! member( X, identity_relation ), member( 
% 5.75/6.12    skol4( Y ), universal_class ) }.
% 5.75/6.12  (34575) {G0,W10,D4,L2,V1,M2}  { ! member( X, identity_relation ), X = 
% 5.75/6.12    ordered_pair( skol4( X ), skol4( X ) ) }.
% 5.75/6.12  (34576) {G0,W11,D3,L3,V2,M3}  { ! member( Y, universal_class ), ! X = 
% 5.75/6.12    ordered_pair( Y, Y ), member( X, identity_relation ) }.
% 5.75/6.12  (34577) {G0,W7,D3,L2,V1,M2}  { ! function( X ), subclass( X, cross_product
% 5.75/6.12    ( universal_class, universal_class ) ) }.
% 5.75/6.12  (34578) {G0,W8,D4,L2,V1,M2}  { ! function( X ), subclass( compose( X, 
% 5.75/6.12    inverse( X ) ), identity_relation ) }.
% 5.75/6.12  (34579) {G0,W13,D4,L3,V1,M3}  { ! subclass( X, cross_product( 
% 5.75/6.12    universal_class, universal_class ) ), ! subclass( compose( X, inverse( X
% 5.75/6.12     ) ), identity_relation ), function( X ) }.
% 5.75/6.12  (34580) {G0,W10,D3,L3,V2,M3}  { ! member( X, universal_class ), ! function
% 5.75/6.12    ( Y ), member( image( Y, X ), universal_class ) }.
% 5.75/6.12  (34581) {G0,W9,D2,L3,V3,M3}  { ! disjoint( X, Y ), ! member( Z, X ), ! 
% 5.75/6.12    member( Z, Y ) }.
% 5.75/6.12  (34582) {G0,W8,D3,L2,V3,M2}  { member( skol5( Z, Y ), Y ), disjoint( X, Y )
% 5.75/6.12     }.
% 5.75/6.12  (34583) {G0,W8,D3,L2,V2,M2}  { member( skol5( X, Y ), X ), disjoint( X, Y )
% 5.75/6.12     }.
% 5.75/6.12  (34584) {G0,W7,D3,L2,V2,M2}  { X = null_class, member( skol6( Y ), 
% 5.75/6.12    universal_class ) }.
% 5.75/6.12  (34585) {G0,W7,D3,L2,V1,M2}  { X = null_class, member( skol6( X ), X ) }.
% 5.75/6.12  (34586) {G0,W7,D3,L2,V1,M2}  { X = null_class, disjoint( skol6( X ), X )
% 5.75/6.12     }.
% 5.75/6.12  (34587) {G0,W9,D5,L1,V2,M1}  { apply( X, Y ) = sum_class( image( X, 
% 5.75/6.12    singleton( Y ) ) ) }.
% 5.75/6.12  (34588) {G0,W2,D2,L1,V0,M1}  { function( skol7 ) }.
% 5.75/6.12  (34589) {G0,W11,D3,L3,V1,M3}  { ! member( X, universal_class ), X = 
% 5.75/6.12    null_class, member( apply( skol7, X ), X ) }.
% 5.75/6.12  (34590) {G0,W3,D2,L1,V0,M1}  { member( skol8, universal_class ) }.
% 5.75/6.12  (34591) {G0,W4,D3,L1,V0,M1}  { ! member( skol8, singleton( skol8 ) ) }.
% 5.75/6.12  
% 5.75/6.12  
% 5.75/6.12  Total Proof:
% 5.75/6.12  
% 5.75/6.12  subsumption: (2) {G0,W8,D3,L2,V2,M2} I { member( skol1( X, Y ), X ), 
% 5.75/6.12    subclass( X, Y ) }.
% 5.75/6.12  parent0: (34499) {G0,W8,D3,L2,V2,M2}  { member( skol1( X, Y ), X ), 
% 5.75/6.12    subclass( X, Y ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (4) {G0,W6,D2,L2,V2,M2} I { ! X = Y, subclass( X, Y ) }.
% 5.75/6.12  parent0: (34501) {G0,W6,D2,L2,V2,M2}  { ! X = Y, subclass( X, Y ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (5) {G0,W9,D2,L3,V2,M3} I { ! subclass( X, Y ), ! subclass( Y
% 5.75/6.12    , X ), X = Y }.
% 5.75/6.12  parent0: (34503) {G0,W9,D2,L3,V2,M3}  { ! subclass( X, Y ), ! subclass( Y, 
% 5.75/6.12    X ), X = Y }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12     2 ==> 2
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (7) {G0,W9,D3,L2,V3,M2} I { ! member( X, unordered_pair( Y, Z
% 5.75/6.12     ) ), alpha1( X, Y, Z ) }.
% 5.75/6.12  parent0: (34505) {G0,W9,D3,L2,V3,M2}  { ! member( X, unordered_pair( Y, Z )
% 5.75/6.12     ), alpha1( X, Y, Z ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12     Z := Z
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (8) {G0,W12,D3,L3,V3,M3} I { ! member( X, universal_class ), !
% 5.75/6.12     alpha1( X, Y, Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.75/6.12  parent0: (34506) {G0,W12,D3,L3,V3,M3}  { ! member( X, universal_class ), ! 
% 5.75/6.12    alpha1( X, Y, Z ), member( X, unordered_pair( Y, Z ) ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12     Z := Z
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12     2 ==> 2
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (9) {G0,W10,D2,L3,V3,M3} I { ! alpha1( X, Y, Z ), X = Y, X = Z
% 5.75/6.12     }.
% 5.75/6.12  parent0: (34507) {G0,W10,D2,L3,V3,M3}  { ! alpha1( X, Y, Z ), X = Y, X = Z
% 5.75/6.12     }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12     Z := Z
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12     2 ==> 2
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (11) {G0,W7,D2,L2,V3,M2} I { ! X = Z, alpha1( X, Y, Z ) }.
% 5.75/6.12  parent0: (34509) {G0,W7,D2,L2,V3,M2}  { ! X = Z, alpha1( X, Y, Z ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12     Z := Z
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  eqswap: (34630) {G0,W6,D3,L1,V1,M1}  { unordered_pair( X, X ) = singleton( 
% 5.75/6.12    X ) }.
% 5.75/6.12  parent0[0]: (34511) {G0,W6,D3,L1,V1,M1}  { singleton( X ) = unordered_pair
% 5.75/6.12    ( X, X ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (13) {G0,W6,D3,L1,V1,M1} I { unordered_pair( X, X ) ==> 
% 5.75/6.12    singleton( X ) }.
% 5.75/6.12  parent0: (34630) {G0,W6,D3,L1,V1,M1}  { unordered_pair( X, X ) = singleton
% 5.75/6.12    ( X ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (32) {G0,W3,D2,L1,V1,M1} I { ! member( X, null_class ) }.
% 5.75/6.12  parent0: (34530) {G0,W3,D2,L1,V1,M1}  { ! member( X, null_class ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (92) {G0,W3,D2,L1,V0,M1} I { member( skol8, universal_class )
% 5.75/6.12     }.
% 5.75/6.12  parent0: (34590) {G0,W3,D2,L1,V0,M1}  { member( skol8, universal_class )
% 5.75/6.12     }.
% 5.75/6.12  substitution0:
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (93) {G0,W4,D3,L1,V0,M1} I { ! member( skol8, singleton( skol8
% 5.75/6.12     ) ) }.
% 5.75/6.12  parent0: (34591) {G0,W4,D3,L1,V0,M1}  { ! member( skol8, singleton( skol8 )
% 5.75/6.12     ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  factor: (34743) {G0,W7,D2,L2,V2,M2}  { ! alpha1( X, Y, Y ), X = Y }.
% 5.75/6.12  parent0[1, 2]: (9) {G0,W10,D2,L3,V3,M3} I { ! alpha1( X, Y, Z ), X = Y, X =
% 5.75/6.12     Z }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12     Z := Y
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (95) {G1,W7,D2,L2,V2,M2} F(9) { ! alpha1( X, Y, Y ), X = Y }.
% 5.75/6.12  parent0: (34743) {G0,W7,D2,L2,V2,M2}  { ! alpha1( X, Y, Y ), X = Y }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12     1 ==> 1
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  eqswap: (34745) {G0,W7,D2,L2,V3,M2}  { ! Y = X, alpha1( X, Z, Y ) }.
% 5.75/6.12  parent0[0]: (11) {G0,W7,D2,L2,V3,M2} I { ! X = Z, alpha1( X, Y, Z ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Z
% 5.75/6.12     Z := Y
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  eqrefl: (34746) {G0,W4,D2,L1,V2,M1}  { alpha1( X, Y, X ) }.
% 5.75/6.12  parent0[0]: (34745) {G0,W7,D2,L2,V3,M2}  { ! Y = X, alpha1( X, Z, Y ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := X
% 5.75/6.12     Z := Y
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (99) {G1,W4,D2,L1,V2,M1} Q(11) { alpha1( X, Y, X ) }.
% 5.75/6.12  parent0: (34746) {G0,W4,D2,L1,V2,M1}  { alpha1( X, Y, X ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  resolution: (34747) {G1,W3,D2,L1,V1,M1}  { subclass( null_class, X ) }.
% 5.75/6.12  parent0[0]: (32) {G0,W3,D2,L1,V1,M1} I { ! member( X, null_class ) }.
% 5.75/6.12  parent1[0]: (2) {G0,W8,D3,L2,V2,M2} I { member( skol1( X, Y ), X ), 
% 5.75/6.12    subclass( X, Y ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := skol1( null_class, X )
% 5.75/6.12  end
% 5.75/6.12  substitution1:
% 5.75/6.12     X := null_class
% 5.75/6.12     Y := X
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  subsumption: (126) {G1,W3,D2,L1,V1,M1} R(2,32) { subclass( null_class, X )
% 5.75/6.12     }.
% 5.75/6.12  parent0: (34747) {G1,W3,D2,L1,V1,M1}  { subclass( null_class, X ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12  end
% 5.75/6.12  permutation0:
% 5.75/6.12     0 ==> 0
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  eqswap: (34748) {G0,W6,D2,L2,V2,M2}  { ! Y = X, subclass( X, Y ) }.
% 5.75/6.12  parent0[0]: (4) {G0,W6,D2,L2,V2,M2} I { ! X = Y, subclass( X, Y ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  eqswap: (34749) {G0,W6,D2,L2,V2,M2}  { ! Y = X, subclass( X, Y ) }.
% 5.75/6.12  parent0[0]: (4) {G0,W6,D2,L2,V2,M2} I { ! X = Y, subclass( X, Y ) }.
% 5.75/6.12  substitution0:
% 5.75/6.12     X := X
% 5.75/6.12     Y := Y
% 5.75/6.12  end
% 5.75/6.12  
% 5.75/6.12  resolution: (34750) {G1,W9,D2,L3,V2,M3}  { ! subclass( Y, X ), X = Y, ! Y =
% 5.75/6.12     X }.
% 5.75/6.12  parent0[0]: (5) {G0,W9Cputime limit exceeded (core dumped)
%------------------------------------------------------------------------------