TSTP Solution File: LCL455+1 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : LCL455+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n004.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 07:53:55 EDT 2022

% Result   : Theorem 0.44s 1.12s
% Output   : Refutation 0.44s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : LCL455+1 : TPTP v8.1.0. Released v3.3.0.
% 0.06/0.13  % Command  : bliksem %s
% 0.12/0.34  % Computer : n004.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % DateTime : Sat Jul  2 23:35:08 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.44/1.11  *** allocated 10000 integers for termspace/termends
% 0.44/1.11  *** allocated 10000 integers for clauses
% 0.44/1.11  *** allocated 10000 integers for justifications
% 0.44/1.11  Bliksem 1.12
% 0.44/1.11  
% 0.44/1.11  
% 0.44/1.11  Automatic Strategy Selection
% 0.44/1.11  
% 0.44/1.11  
% 0.44/1.11  Clauses:
% 0.44/1.11  
% 0.44/1.11  { ! modus_ponens, ! alpha1( X ), is_a_theorem( X ) }.
% 0.44/1.11  { alpha1( skol1 ), modus_ponens }.
% 0.44/1.11  { ! is_a_theorem( skol1 ), modus_ponens }.
% 0.44/1.11  { ! alpha1( X ), is_a_theorem( skol2( Y ) ) }.
% 0.44/1.11  { ! alpha1( X ), is_a_theorem( implies( skol2( X ), X ) ) }.
% 0.44/1.11  { ! is_a_theorem( Y ), ! is_a_theorem( implies( Y, X ) ), alpha1( X ) }.
% 0.44/1.11  { ! substitution_of_equivalents, ! is_a_theorem( equiv( X, Y ) ), X = Y }.
% 0.44/1.11  { is_a_theorem( equiv( skol3, skol28 ) ), substitution_of_equivalents }.
% 0.44/1.11  { ! skol3 = skol28, substitution_of_equivalents }.
% 0.44/1.11  { ! modus_tollens, is_a_theorem( implies( implies( not( Y ), not( X ) ), 
% 0.44/1.11    implies( X, Y ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( not( skol29 ), not( skol4 ) ), implies
% 0.44/1.11    ( skol4, skol29 ) ) ), modus_tollens }.
% 0.44/1.11  { ! implies_1, is_a_theorem( implies( X, implies( Y, X ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( skol5, implies( skol30, skol5 ) ) ), implies_1 }
% 0.44/1.11    .
% 0.44/1.11  { ! implies_2, is_a_theorem( implies( implies( X, implies( X, Y ) ), 
% 0.44/1.11    implies( X, Y ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( skol6, implies( skol6, skol31 ) ), 
% 0.44/1.11    implies( skol6, skol31 ) ) ), implies_2 }.
% 0.44/1.11  { ! implies_3, is_a_theorem( implies( implies( X, Y ), implies( implies( Y
% 0.44/1.11    , Z ), implies( X, Z ) ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( skol7, skol32 ), implies( implies( 
% 0.44/1.11    skol32, skol50 ), implies( skol7, skol50 ) ) ) ), implies_3 }.
% 0.44/1.11  { ! and_1, is_a_theorem( implies( and( X, Y ), X ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( and( skol8, skol33 ), skol8 ) ), and_1 }.
% 0.44/1.11  { ! and_2, is_a_theorem( implies( and( X, Y ), Y ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( and( skol9, skol34 ), skol34 ) ), and_2 }.
% 0.44/1.11  { ! and_3, is_a_theorem( implies( X, implies( Y, and( X, Y ) ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( skol10, implies( skol35, and( skol10, skol35 ) )
% 0.44/1.11     ) ), and_3 }.
% 0.44/1.11  { ! or_1, is_a_theorem( implies( X, or( X, Y ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( skol11, or( skol11, skol36 ) ) ), or_1 }.
% 0.44/1.11  { ! or_2, is_a_theorem( implies( Y, or( X, Y ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( skol37, or( skol12, skol37 ) ) ), or_2 }.
% 0.44/1.11  { ! or_3, is_a_theorem( implies( implies( X, Z ), implies( implies( Y, Z )
% 0.44/1.11    , implies( or( X, Y ), Z ) ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( skol13, skol51 ), implies( implies( 
% 0.44/1.11    skol38, skol51 ), implies( or( skol13, skol38 ), skol51 ) ) ) ), or_3 }.
% 0.44/1.11  { ! equivalence_1, is_a_theorem( implies( equiv( X, Y ), implies( X, Y ) )
% 0.44/1.11     ) }.
% 0.44/1.11  { ! is_a_theorem( implies( equiv( skol14, skol39 ), implies( skol14, skol39
% 0.44/1.11     ) ) ), equivalence_1 }.
% 0.44/1.11  { ! equivalence_2, is_a_theorem( implies( equiv( X, Y ), implies( Y, X ) )
% 0.44/1.11     ) }.
% 0.44/1.11  { ! is_a_theorem( implies( equiv( skol15, skol40 ), implies( skol40, skol15
% 0.44/1.11     ) ) ), equivalence_2 }.
% 0.44/1.11  { ! equivalence_3, is_a_theorem( implies( implies( X, Y ), implies( implies
% 0.44/1.11    ( Y, X ), equiv( X, Y ) ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( skol16, skol41 ), implies( implies( 
% 0.44/1.11    skol41, skol16 ), equiv( skol16, skol41 ) ) ) ), equivalence_3 }.
% 0.44/1.11  { ! kn1, is_a_theorem( implies( X, and( X, X ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( skol17, and( skol17, skol17 ) ) ), kn1 }.
% 0.44/1.11  { ! kn2, is_a_theorem( implies( and( X, Y ), X ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( and( skol18, skol42 ), skol18 ) ), kn2 }.
% 0.44/1.11  { ! kn3, is_a_theorem( implies( implies( X, Y ), implies( not( and( Y, Z )
% 0.44/1.11     ), not( and( Z, X ) ) ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( skol19, skol43 ), implies( not( and( 
% 0.44/1.11    skol43, skol52 ) ), not( and( skol52, skol19 ) ) ) ) ), kn3 }.
% 0.44/1.11  { ! cn1, is_a_theorem( implies( implies( X, Y ), implies( implies( Y, Z ), 
% 0.44/1.11    implies( X, Z ) ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( skol20, skol44 ), implies( implies( 
% 0.44/1.11    skol44, skol53 ), implies( skol20, skol53 ) ) ) ), cn1 }.
% 0.44/1.11  { ! cn2, is_a_theorem( implies( X, implies( not( X ), Y ) ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( skol21, implies( not( skol21 ), skol45 ) ) ), 
% 0.44/1.11    cn2 }.
% 0.44/1.11  { ! cn3, is_a_theorem( implies( implies( not( X ), X ), X ) ) }.
% 0.44/1.11  { ! is_a_theorem( implies( implies( not( skol22 ), skol22 ), skol22 ) ), 
% 0.44/1.11    cn3 }.
% 0.44/1.12  { ! r1, is_a_theorem( implies( or( X, X ), X ) ) }.
% 0.44/1.12  { ! is_a_theorem( implies( or( skol23, skol23 ), skol23 ) ), r1 }.
% 0.44/1.12  { ! r2, is_a_theorem( implies( Y, or( X, Y ) ) ) }.
% 0.44/1.12  { ! is_a_theorem( implies( skol46, or( skol24, skol46 ) ) ), r2 }.
% 0.44/1.12  { ! r3, is_a_theorem( implies( or( X, Y ), or( Y, X ) ) ) }.
% 0.44/1.12  { ! is_a_theorem( implies( or( skol25, skol47 ), or( skol47, skol25 ) ) ), 
% 0.44/1.12    r3 }.
% 0.44/1.12  { ! r4, is_a_theorem( implies( or( X, or( Y, Z ) ), or( Y, or( X, Z ) ) ) )
% 0.44/1.12     }.
% 0.44/1.12  { ! is_a_theorem( implies( or( skol26, or( skol48, skol54 ) ), or( skol48, 
% 0.44/1.12    or( skol26, skol54 ) ) ) ), r4 }.
% 0.44/1.12  { ! r5, is_a_theorem( implies( implies( Y, Z ), implies( or( X, Y ), or( X
% 0.44/1.12    , Z ) ) ) ) }.
% 0.44/1.12  { ! is_a_theorem( implies( implies( skol49, skol55 ), implies( or( skol27, 
% 0.44/1.12    skol49 ), or( skol27, skol55 ) ) ) ), r5 }.
% 0.44/1.12  { ! op_or, or( X, Y ) = not( and( not( X ), not( Y ) ) ) }.
% 0.44/1.12  { ! op_and, and( X, Y ) = not( or( not( X ), not( Y ) ) ) }.
% 0.44/1.12  { ! op_implies_and, implies( X, Y ) = not( and( X, not( Y ) ) ) }.
% 0.44/1.12  { ! op_implies_or, implies( X, Y ) = or( not( X ), Y ) }.
% 0.44/1.12  { ! op_equiv, equiv( X, Y ) = and( implies( X, Y ), implies( Y, X ) ) }.
% 0.44/1.12  { op_or }.
% 0.44/1.12  { op_implies_and }.
% 0.44/1.12  { op_equiv }.
% 0.44/1.12  { modus_ponens }.
% 0.44/1.12  { modus_tollens }.
% 0.44/1.12  { implies_1 }.
% 0.44/1.12  { implies_2 }.
% 0.44/1.12  { implies_3 }.
% 0.44/1.12  { and_1 }.
% 0.44/1.12  { and_2 }.
% 0.44/1.12  { and_3 }.
% 0.44/1.12  { or_1 }.
% 0.44/1.12  { or_2 }.
% 0.44/1.12  { or_3 }.
% 0.44/1.12  { equivalence_1 }.
% 0.44/1.12  { equivalence_2 }.
% 0.44/1.12  { equivalence_3 }.
% 0.44/1.12  { substitution_of_equivalents }.
% 0.44/1.12  { op_implies_or }.
% 0.44/1.12  { op_and }.
% 0.44/1.12  { op_equiv }.
% 0.44/1.12  { ! r2 }.
% 0.44/1.12  
% 0.44/1.12  percentage equality = 0.047297, percentage horn = 0.975904
% 0.44/1.12  This is a problem with some equality
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  Options Used:
% 0.44/1.12  
% 0.44/1.12  useres =            1
% 0.44/1.12  useparamod =        1
% 0.44/1.12  useeqrefl =         1
% 0.44/1.12  useeqfact =         1
% 0.44/1.12  usefactor =         1
% 0.44/1.12  usesimpsplitting =  0
% 0.44/1.12  usesimpdemod =      5
% 0.44/1.12  usesimpres =        3
% 0.44/1.12  
% 0.44/1.12  resimpinuse      =  1000
% 0.44/1.12  resimpclauses =     20000
% 0.44/1.12  substype =          eqrewr
% 0.44/1.12  backwardsubs =      1
% 0.44/1.12  selectoldest =      5
% 0.44/1.12  
% 0.44/1.12  litorderings [0] =  split
% 0.44/1.12  litorderings [1] =  extend the termordering, first sorting on arguments
% 0.44/1.12  
% 0.44/1.12  termordering =      kbo
% 0.44/1.12  
% 0.44/1.12  litapriori =        0
% 0.44/1.12  termapriori =       1
% 0.44/1.12  litaposteriori =    0
% 0.44/1.12  termaposteriori =   0
% 0.44/1.12  demodaposteriori =  0
% 0.44/1.12  ordereqreflfact =   0
% 0.44/1.12  
% 0.44/1.12  litselect =         negord
% 0.44/1.12  
% 0.44/1.12  maxweight =         15
% 0.44/1.12  maxdepth =          30000
% 0.44/1.12  maxlength =         115
% 0.44/1.12  maxnrvars =         195
% 0.44/1.12  excuselevel =       1
% 0.44/1.12  increasemaxweight = 1
% 0.44/1.12  
% 0.44/1.12  maxselected =       10000000
% 0.44/1.12  maxnrclauses =      10000000
% 0.44/1.12  
% 0.44/1.12  showgenerated =    0
% 0.44/1.12  showkept =         0
% 0.44/1.12  showselected =     0
% 0.44/1.12  showdeleted =      0
% 0.44/1.12  showresimp =       1
% 0.44/1.12  showstatus =       2000
% 0.44/1.12  
% 0.44/1.12  prologoutput =     0
% 0.44/1.12  nrgoals =          5000000
% 0.44/1.12  totalproof =       1
% 0.44/1.12  
% 0.44/1.12  Symbols occurring in the translation:
% 0.44/1.12  
% 0.44/1.12  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.44/1.12  .  [1, 2]      (w:1, o:106, a:1, s:1, b:0), 
% 0.44/1.12  !  [4, 1]      (w:0, o:97, a:1, s:1, b:0), 
% 0.44/1.12  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.44/1.12  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.44/1.12  modus_ponens  [35, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 0.44/1.12  is_a_theorem  [38, 1]      (w:1, o:102, a:1, s:1, b:0), 
% 0.44/1.12  implies  [39, 2]      (w:1, o:130, a:1, s:1, b:0), 
% 0.44/1.12  substitution_of_equivalents  [40, 0]      (w:1, o:14, a:1, s:1, b:0), 
% 0.44/1.12  equiv  [41, 2]      (w:1, o:131, a:1, s:1, b:0), 
% 0.44/1.12  modus_tollens  [42, 0]      (w:1, o:15, a:1, s:1, b:0), 
% 0.44/1.12  not  [43, 1]      (w:1, o:103, a:1, s:1, b:0), 
% 0.44/1.12  implies_1  [44, 0]      (w:1, o:16, a:1, s:1, b:0), 
% 0.44/1.12  implies_2  [45, 0]      (w:1, o:17, a:1, s:1, b:0), 
% 0.44/1.12  implies_3  [46, 0]      (w:1, o:18, a:1, s:1, b:0), 
% 0.44/1.12  and_1  [48, 0]      (w:1, o:20, a:1, s:1, b:0), 
% 0.44/1.12  and  [49, 2]      (w:1, o:132, a:1, s:1, b:0), 
% 0.44/1.12  and_2  [50, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 0.44/1.12  and_3  [51, 0]      (w:1, o:22, a:1, s:1, b:0), 
% 0.44/1.12  or_1  [52, 0]      (w:1, o:23, a:1, s:1, b:0), 
% 0.44/1.12  or  [53, 2]      (w:1, o:133, a:1, s:1, b:0), 
% 0.44/1.12  or_2  [54, 0]      (w:1, o:24, a:1, s:1, b:0), 
% 0.44/1.12  or_3  [55, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 0.44/1.12  equivalence_1  [56, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 0.44/1.12  equivalence_2  [57, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 0.44/1.12  equivalence_3  [58, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 0.44/1.12  kn1  [59, 0]      (w:1, o:29, a:1, s:1, b:0), 
% 0.44/1.12  kn2  [61, 0]      (w:1, o:31, a:1, s:1, b:0), 
% 0.44/1.12  kn3  [63, 0]      (w:1, o:33, a:1, s:1, b:0), 
% 0.44/1.12  cn1  [65, 0]      (w:1, o:35, a:1, s:1, b:0), 
% 0.44/1.12  cn2  [66, 0]      (w:1, o:36, a:1, s:1, b:0), 
% 0.44/1.12  cn3  [67, 0]      (w:1, o:37, a:1, s:1, b:0), 
% 0.44/1.12  r1  [68, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.44/1.12  r2  [69, 0]      (w:1, o:10, a:1, s:1, b:0), 
% 0.44/1.12  r3  [70, 0]      (w:1, o:11, a:1, s:1, b:0), 
% 0.44/1.12  r4  [71, 0]      (w:1, o:12, a:1, s:1, b:0), 
% 0.44/1.12  r5  [72, 0]      (w:1, o:13, a:1, s:1, b:0), 
% 0.44/1.12  op_or  [73, 0]      (w:1, o:38, a:1, s:1, b:0), 
% 0.44/1.12  op_and  [74, 0]      (w:1, o:39, a:1, s:1, b:0), 
% 0.44/1.12  op_implies_and  [75, 0]      (w:1, o:40, a:1, s:1, b:0), 
% 0.44/1.12  op_implies_or  [76, 0]      (w:1, o:41, a:1, s:1, b:0), 
% 0.44/1.12  op_equiv  [77, 0]      (w:1, o:42, a:1, s:1, b:0), 
% 0.44/1.12  alpha1  [78, 1]      (w:1, o:104, a:1, s:1, b:1), 
% 0.44/1.12  skol1  [79, 0]      (w:1, o:43, a:1, s:1, b:1), 
% 0.44/1.12  skol2  [80, 1]      (w:1, o:105, a:1, s:1, b:1), 
% 0.44/1.12  skol3  [81, 0]      (w:1, o:54, a:1, s:1, b:1), 
% 0.44/1.12  skol4  [82, 0]      (w:1, o:65, a:1, s:1, b:1), 
% 0.44/1.12  skol5  [83, 0]      (w:1, o:76, a:1, s:1, b:1), 
% 0.44/1.12  skol6  [84, 0]      (w:1, o:83, a:1, s:1, b:1), 
% 0.44/1.12  skol7  [85, 0]      (w:1, o:84, a:1, s:1, b:1), 
% 0.44/1.12  skol8  [86, 0]      (w:1, o:85, a:1, s:1, b:1), 
% 0.44/1.12  skol9  [87, 0]      (w:1, o:86, a:1, s:1, b:1), 
% 0.44/1.12  skol10  [88, 0]      (w:1, o:87, a:1, s:1, b:1), 
% 0.44/1.12  skol11  [89, 0]      (w:1, o:88, a:1, s:1, b:1), 
% 0.44/1.12  skol12  [90, 0]      (w:1, o:89, a:1, s:1, b:1), 
% 0.44/1.12  skol13  [91, 0]      (w:1, o:90, a:1, s:1, b:1), 
% 0.44/1.12  skol14  [92, 0]      (w:1, o:91, a:1, s:1, b:1), 
% 0.44/1.12  skol15  [93, 0]      (w:1, o:92, a:1, s:1, b:1), 
% 0.44/1.12  skol16  [94, 0]      (w:1, o:93, a:1, s:1, b:1), 
% 0.44/1.12  skol17  [95, 0]      (w:1, o:94, a:1, s:1, b:1), 
% 0.44/1.12  skol18  [96, 0]      (w:1, o:95, a:1, s:1, b:1), 
% 0.44/1.12  skol19  [97, 0]      (w:1, o:96, a:1, s:1, b:1), 
% 0.44/1.12  skol20  [98, 0]      (w:1, o:44, a:1, s:1, b:1), 
% 0.44/1.12  skol21  [99, 0]      (w:1, o:45, a:1, s:1, b:1), 
% 0.44/1.12  skol22  [100, 0]      (w:1, o:46, a:1, s:1, b:1), 
% 0.44/1.12  skol23  [101, 0]      (w:1, o:47, a:1, s:1, b:1), 
% 0.44/1.12  skol24  [102, 0]      (w:1, o:48, a:1, s:1, b:1), 
% 0.44/1.12  skol25  [103, 0]      (w:1, o:49, a:1, s:1, b:1), 
% 0.44/1.12  skol26  [104, 0]      (w:1, o:50, a:1, s:1, b:1), 
% 0.44/1.12  skol27  [105, 0]      (w:1, o:51, a:1, s:1, b:1), 
% 0.44/1.12  skol28  [106, 0]      (w:1, o:52, a:1, s:1, b:1), 
% 0.44/1.12  skol29  [107, 0]      (w:1, o:53, a:1, s:1, b:1), 
% 0.44/1.12  skol30  [108, 0]      (w:1, o:55, a:1, s:1, b:1), 
% 0.44/1.12  skol31  [109, 0]      (w:1, o:56, a:1, s:1, b:1), 
% 0.44/1.12  skol32  [110, 0]      (w:1, o:57, a:1, s:1, b:1), 
% 0.44/1.12  skol33  [111, 0]      (w:1, o:58, a:1, s:1, b:1), 
% 0.44/1.12  skol34  [112, 0]      (w:1, o:59, a:1, s:1, b:1), 
% 0.44/1.12  skol35  [113, 0]      (w:1, o:60, a:1, s:1, b:1), 
% 0.44/1.12  skol36  [114, 0]      (w:1, o:61, a:1, s:1, b:1), 
% 0.44/1.12  skol37  [115, 0]      (w:1, o:62, a:1, s:1, b:1), 
% 0.44/1.12  skol38  [116, 0]      (w:1, o:63, a:1, s:1, b:1), 
% 0.44/1.12  skol39  [117, 0]      (w:1, o:64, a:1, s:1, b:1), 
% 0.44/1.12  skol40  [118, 0]      (w:1, o:66, a:1, s:1, b:1), 
% 0.44/1.12  skol41  [119, 0]      (w:1, o:67, a:1, s:1, b:1), 
% 0.44/1.12  skol42  [120, 0]      (w:1, o:68, a:1, s:1, b:1), 
% 0.44/1.12  skol43  [121, 0]      (w:1, o:69, a:1, s:1, b:1), 
% 0.44/1.12  skol44  [122, 0]      (w:1, o:70, a:1, s:1, b:1), 
% 0.44/1.12  skol45  [123, 0]      (w:1, o:71, a:1, s:1, b:1), 
% 0.44/1.12  skol46  [124, 0]      (w:1, o:72, a:1, s:1, b:1), 
% 0.44/1.12  skol47  [125, 0]      (w:1, o:73, a:1, s:1, b:1), 
% 0.44/1.12  skol48  [126, 0]      (w:1, o:74, a:1, s:1, b:1), 
% 0.44/1.12  skol49  [127, 0]      (w:1, o:75, a:1, s:1, b:1), 
% 0.44/1.12  skol50  [128, 0]      (w:1, o:77, a:1, s:1, b:1), 
% 0.44/1.12  skol51  [129, 0]      (w:1, o:78, a:1, s:1, b:1), 
% 0.44/1.12  skol52  [130, 0]      (w:1, o:79, a:1, s:1, b:1), 
% 0.44/1.12  skol53  [131, 0]      (w:1, o:80, a:1, s:1, b:1), 
% 0.44/1.12  skol54  [132, 0]      (w:1, o:81, a:1, s:1, b:1), 
% 0.44/1.12  skol55  [133, 0]      (w:1, o:82, a:1, s:1, b:1).
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  Starting Search:
% 0.44/1.12  
% 0.44/1.12  *** allocated 15000 integers for clauses
% 0.44/1.12  *** allocated 22500 integers for clauses
% 0.44/1.12  *** allocated 33750 integers for clauses
% 0.44/1.12  *** allocated 50625 integers for clauses
% 0.44/1.12  *** allocated 15000 integers for termspace/termends
% 0.44/1.12  
% 0.44/1.12  Bliksems!, er is een bewijs:
% 0.44/1.12  % SZS status Theorem
% 0.44/1.12  % SZS output start Refutation
% 0.44/1.12  
% 0.44/1.12  (25) {G0,W7,D4,L2,V2,M2} I { ! or_2, is_a_theorem( implies( Y, or( X, Y ) )
% 0.44/1.12     ) }.
% 0.44/1.12  (50) {G0,W7,D4,L2,V0,M2} I { ! is_a_theorem( implies( skol46, or( skol24, 
% 0.44/1.12    skol46 ) ) ), r2 }.
% 0.44/1.12  (74) {G0,W1,D1,L1,V0,M1} I { or_2 }.
% 0.44/1.12  (82) {G0,W1,D1,L1,V0,M1} I { ! r2 }.
% 0.44/1.12  (173) {G1,W6,D4,L1,V2,M1} S(25);r(74) { is_a_theorem( implies( Y, or( X, Y
% 0.44/1.12     ) ) ) }.
% 0.44/1.12  (912) {G2,W0,D0,L0,V0,M0} S(50);r(173);r(82) {  }.
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  % SZS output end Refutation
% 0.44/1.12  found a proof!
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  Unprocessed initial clauses:
% 0.44/1.12  
% 0.44/1.12  (914) {G0,W5,D2,L3,V1,M3}  { ! modus_ponens, ! alpha1( X ), is_a_theorem( X
% 0.44/1.12     ) }.
% 0.44/1.12  (915) {G0,W3,D2,L2,V0,M2}  { alpha1( skol1 ), modus_ponens }.
% 0.44/1.12  (916) {G0,W3,D2,L2,V0,M2}  { ! is_a_theorem( skol1 ), modus_ponens }.
% 0.44/1.12  (917) {G0,W5,D3,L2,V2,M2}  { ! alpha1( X ), is_a_theorem( skol2( Y ) ) }.
% 0.44/1.12  (918) {G0,W7,D4,L2,V1,M2}  { ! alpha1( X ), is_a_theorem( implies( skol2( X
% 0.44/1.12     ), X ) ) }.
% 0.44/1.12  (919) {G0,W8,D3,L3,V2,M3}  { ! is_a_theorem( Y ), ! is_a_theorem( implies( 
% 0.44/1.12    Y, X ) ), alpha1( X ) }.
% 0.44/1.12  (920) {G0,W8,D3,L3,V2,M3}  { ! substitution_of_equivalents, ! is_a_theorem
% 0.44/1.12    ( equiv( X, Y ) ), X = Y }.
% 0.44/1.12  (921) {G0,W5,D3,L2,V0,M2}  { is_a_theorem( equiv( skol3, skol28 ) ), 
% 0.44/1.12    substitution_of_equivalents }.
% 0.44/1.12  (922) {G0,W4,D2,L2,V0,M2}  { ! skol3 = skol28, substitution_of_equivalents
% 0.44/1.12     }.
% 0.44/1.12  (923) {G0,W11,D5,L2,V2,M2}  { ! modus_tollens, is_a_theorem( implies( 
% 0.44/1.12    implies( not( Y ), not( X ) ), implies( X, Y ) ) ) }.
% 0.44/1.12  (924) {G0,W11,D5,L2,V0,M2}  { ! is_a_theorem( implies( implies( not( skol29
% 0.44/1.12     ), not( skol4 ) ), implies( skol4, skol29 ) ) ), modus_tollens }.
% 0.44/1.12  (925) {G0,W7,D4,L2,V2,M2}  { ! implies_1, is_a_theorem( implies( X, implies
% 0.44/1.12    ( Y, X ) ) ) }.
% 0.44/1.12  (926) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( skol5, implies( 
% 0.44/1.12    skol30, skol5 ) ) ), implies_1 }.
% 0.44/1.12  (927) {G0,W11,D5,L2,V2,M2}  { ! implies_2, is_a_theorem( implies( implies( 
% 0.44/1.12    X, implies( X, Y ) ), implies( X, Y ) ) ) }.
% 0.44/1.12  (928) {G0,W11,D5,L2,V0,M2}  { ! is_a_theorem( implies( implies( skol6, 
% 0.44/1.12    implies( skol6, skol31 ) ), implies( skol6, skol31 ) ) ), implies_2 }.
% 0.44/1.12  (929) {G0,W13,D5,L2,V3,M2}  { ! implies_3, is_a_theorem( implies( implies( 
% 0.44/1.12    X, Y ), implies( implies( Y, Z ), implies( X, Z ) ) ) ) }.
% 0.44/1.12  (930) {G0,W13,D5,L2,V0,M2}  { ! is_a_theorem( implies( implies( skol7, 
% 0.44/1.12    skol32 ), implies( implies( skol32, skol50 ), implies( skol7, skol50 ) )
% 0.44/1.12     ) ), implies_3 }.
% 0.44/1.12  (931) {G0,W7,D4,L2,V2,M2}  { ! and_1, is_a_theorem( implies( and( X, Y ), X
% 0.44/1.12     ) ) }.
% 0.44/1.12  (932) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( and( skol8, skol33 )
% 0.44/1.12    , skol8 ) ), and_1 }.
% 0.44/1.12  (933) {G0,W7,D4,L2,V2,M2}  { ! and_2, is_a_theorem( implies( and( X, Y ), Y
% 0.44/1.12     ) ) }.
% 0.44/1.12  (934) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( and( skol9, skol34 )
% 0.44/1.12    , skol34 ) ), and_2 }.
% 0.44/1.12  (935) {G0,W9,D5,L2,V2,M2}  { ! and_3, is_a_theorem( implies( X, implies( Y
% 0.44/1.12    , and( X, Y ) ) ) ) }.
% 0.44/1.12  (936) {G0,W9,D5,L2,V0,M2}  { ! is_a_theorem( implies( skol10, implies( 
% 0.44/1.12    skol35, and( skol10, skol35 ) ) ) ), and_3 }.
% 0.44/1.12  (937) {G0,W7,D4,L2,V2,M2}  { ! or_1, is_a_theorem( implies( X, or( X, Y ) )
% 0.44/1.12     ) }.
% 0.44/1.12  (938) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( skol11, or( skol11, 
% 0.44/1.12    skol36 ) ) ), or_1 }.
% 0.44/1.12  (939) {G0,W7,D4,L2,V2,M2}  { ! or_2, is_a_theorem( implies( Y, or( X, Y ) )
% 0.44/1.12     ) }.
% 0.44/1.12  (940) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( skol37, or( skol12, 
% 0.44/1.12    skol37 ) ) ), or_2 }.
% 0.44/1.12  (941) {G0,W15,D6,L2,V3,M2}  { ! or_3, is_a_theorem( implies( implies( X, Z
% 0.44/1.12     ), implies( implies( Y, Z ), implies( or( X, Y ), Z ) ) ) ) }.
% 0.44/1.12  (942) {G0,W15,D6,L2,V0,M2}  { ! is_a_theorem( implies( implies( skol13, 
% 0.44/1.12    skol51 ), implies( implies( skol38, skol51 ), implies( or( skol13, skol38
% 0.44/1.12     ), skol51 ) ) ) ), or_3 }.
% 0.44/1.12  (943) {G0,W9,D4,L2,V2,M2}  { ! equivalence_1, is_a_theorem( implies( equiv
% 0.44/1.12    ( X, Y ), implies( X, Y ) ) ) }.
% 0.44/1.12  (944) {G0,W9,D4,L2,V0,M2}  { ! is_a_theorem( implies( equiv( skol14, skol39
% 0.44/1.12     ), implies( skol14, skol39 ) ) ), equivalence_1 }.
% 0.44/1.12  (945) {G0,W9,D4,L2,V2,M2}  { ! equivalence_2, is_a_theorem( implies( equiv
% 0.44/1.12    ( X, Y ), implies( Y, X ) ) ) }.
% 0.44/1.12  (946) {G0,W9,D4,L2,V0,M2}  { ! is_a_theorem( implies( equiv( skol15, skol40
% 0.44/1.12     ), implies( skol40, skol15 ) ) ), equivalence_2 }.
% 0.44/1.12  (947) {G0,W13,D5,L2,V2,M2}  { ! equivalence_3, is_a_theorem( implies( 
% 0.44/1.12    implies( X, Y ), implies( implies( Y, X ), equiv( X, Y ) ) ) ) }.
% 0.44/1.12  (948) {G0,W13,D5,L2,V0,M2}  { ! is_a_theorem( implies( implies( skol16, 
% 0.44/1.12    skol41 ), implies( implies( skol41, skol16 ), equiv( skol16, skol41 ) ) )
% 0.44/1.12     ), equivalence_3 }.
% 0.44/1.12  (949) {G0,W7,D4,L2,V1,M2}  { ! kn1, is_a_theorem( implies( X, and( X, X ) )
% 0.44/1.12     ) }.
% 0.44/1.12  (950) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( skol17, and( skol17, 
% 0.44/1.12    skol17 ) ) ), kn1 }.
% 0.44/1.12  (951) {G0,W7,D4,L2,V2,M2}  { ! kn2, is_a_theorem( implies( and( X, Y ), X )
% 0.44/1.12     ) }.
% 0.44/1.12  (952) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( and( skol18, skol42 )
% 0.44/1.12    , skol18 ) ), kn2 }.
% 0.44/1.12  (953) {G0,W15,D6,L2,V3,M2}  { ! kn3, is_a_theorem( implies( implies( X, Y )
% 0.44/1.12    , implies( not( and( Y, Z ) ), not( and( Z, X ) ) ) ) ) }.
% 0.44/1.12  (954) {G0,W15,D6,L2,V0,M2}  { ! is_a_theorem( implies( implies( skol19, 
% 0.44/1.12    skol43 ), implies( not( and( skol43, skol52 ) ), not( and( skol52, skol19
% 0.44/1.12     ) ) ) ) ), kn3 }.
% 0.44/1.12  (955) {G0,W13,D5,L2,V3,M2}  { ! cn1, is_a_theorem( implies( implies( X, Y )
% 0.44/1.12    , implies( implies( Y, Z ), implies( X, Z ) ) ) ) }.
% 0.44/1.12  (956) {G0,W13,D5,L2,V0,M2}  { ! is_a_theorem( implies( implies( skol20, 
% 0.44/1.12    skol44 ), implies( implies( skol44, skol53 ), implies( skol20, skol53 ) )
% 0.44/1.12     ) ), cn1 }.
% 0.44/1.12  (957) {G0,W8,D5,L2,V2,M2}  { ! cn2, is_a_theorem( implies( X, implies( not
% 0.44/1.12    ( X ), Y ) ) ) }.
% 0.44/1.12  (958) {G0,W8,D5,L2,V0,M2}  { ! is_a_theorem( implies( skol21, implies( not
% 0.44/1.12    ( skol21 ), skol45 ) ) ), cn2 }.
% 0.44/1.12  (959) {G0,W8,D5,L2,V1,M2}  { ! cn3, is_a_theorem( implies( implies( not( X
% 0.44/1.12     ), X ), X ) ) }.
% 0.44/1.12  (960) {G0,W8,D5,L2,V0,M2}  { ! is_a_theorem( implies( implies( not( skol22
% 0.44/1.12     ), skol22 ), skol22 ) ), cn3 }.
% 0.44/1.12  (961) {G0,W7,D4,L2,V1,M2}  { ! r1, is_a_theorem( implies( or( X, X ), X ) )
% 0.44/1.12     }.
% 0.44/1.12  (962) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( or( skol23, skol23 )
% 0.44/1.12    , skol23 ) ), r1 }.
% 0.44/1.12  (963) {G0,W7,D4,L2,V2,M2}  { ! r2, is_a_theorem( implies( Y, or( X, Y ) ) )
% 0.44/1.12     }.
% 0.44/1.12  (964) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( skol46, or( skol24, 
% 0.44/1.12    skol46 ) ) ), r2 }.
% 0.44/1.12  (965) {G0,W9,D4,L2,V2,M2}  { ! r3, is_a_theorem( implies( or( X, Y ), or( Y
% 0.44/1.12    , X ) ) ) }.
% 0.44/1.12  (966) {G0,W9,D4,L2,V0,M2}  { ! is_a_theorem( implies( or( skol25, skol47 )
% 0.44/1.12    , or( skol47, skol25 ) ) ), r3 }.
% 0.44/1.12  (967) {G0,W13,D5,L2,V3,M2}  { ! r4, is_a_theorem( implies( or( X, or( Y, Z
% 0.44/1.12     ) ), or( Y, or( X, Z ) ) ) ) }.
% 0.44/1.12  (968) {G0,W13,D5,L2,V0,M2}  { ! is_a_theorem( implies( or( skol26, or( 
% 0.44/1.12    skol48, skol54 ) ), or( skol48, or( skol26, skol54 ) ) ) ), r4 }.
% 0.44/1.12  (969) {G0,W13,D5,L2,V3,M2}  { ! r5, is_a_theorem( implies( implies( Y, Z )
% 0.44/1.12    , implies( or( X, Y ), or( X, Z ) ) ) ) }.
% 0.44/1.12  (970) {G0,W13,D5,L2,V0,M2}  { ! is_a_theorem( implies( implies( skol49, 
% 0.44/1.12    skol55 ), implies( or( skol27, skol49 ), or( skol27, skol55 ) ) ) ), r5
% 0.44/1.12     }.
% 0.44/1.12  (971) {G0,W11,D5,L2,V2,M2}  { ! op_or, or( X, Y ) = not( and( not( X ), not
% 0.44/1.12    ( Y ) ) ) }.
% 0.44/1.12  (972) {G0,W11,D5,L2,V2,M2}  { ! op_and, and( X, Y ) = not( or( not( X ), 
% 0.44/1.12    not( Y ) ) ) }.
% 0.44/1.12  (973) {G0,W10,D5,L2,V2,M2}  { ! op_implies_and, implies( X, Y ) = not( and
% 0.44/1.12    ( X, not( Y ) ) ) }.
% 0.44/1.12  (974) {G0,W9,D4,L2,V2,M2}  { ! op_implies_or, implies( X, Y ) = or( not( X
% 0.44/1.12     ), Y ) }.
% 0.44/1.12  (975) {G0,W12,D4,L2,V2,M2}  { ! op_equiv, equiv( X, Y ) = and( implies( X, 
% 0.44/1.12    Y ), implies( Y, X ) ) }.
% 0.44/1.12  (976) {G0,W1,D1,L1,V0,M1}  { op_or }.
% 0.44/1.12  (977) {G0,W1,D1,L1,V0,M1}  { op_implies_and }.
% 0.44/1.12  (978) {G0,W1,D1,L1,V0,M1}  { op_equiv }.
% 0.44/1.12  (979) {G0,W1,D1,L1,V0,M1}  { modus_ponens }.
% 0.44/1.12  (980) {G0,W1,D1,L1,V0,M1}  { modus_tollens }.
% 0.44/1.12  (981) {G0,W1,D1,L1,V0,M1}  { implies_1 }.
% 0.44/1.12  (982) {G0,W1,D1,L1,V0,M1}  { implies_2 }.
% 0.44/1.12  (983) {G0,W1,D1,L1,V0,M1}  { implies_3 }.
% 0.44/1.12  (984) {G0,W1,D1,L1,V0,M1}  { and_1 }.
% 0.44/1.12  (985) {G0,W1,D1,L1,V0,M1}  { and_2 }.
% 0.44/1.12  (986) {G0,W1,D1,L1,V0,M1}  { and_3 }.
% 0.44/1.12  (987) {G0,W1,D1,L1,V0,M1}  { or_1 }.
% 0.44/1.12  (988) {G0,W1,D1,L1,V0,M1}  { or_2 }.
% 0.44/1.12  (989) {G0,W1,D1,L1,V0,M1}  { or_3 }.
% 0.44/1.12  (990) {G0,W1,D1,L1,V0,M1}  { equivalence_1 }.
% 0.44/1.12  (991) {G0,W1,D1,L1,V0,M1}  { equivalence_2 }.
% 0.44/1.12  (992) {G0,W1,D1,L1,V0,M1}  { equivalence_3 }.
% 0.44/1.12  (993) {G0,W1,D1,L1,V0,M1}  { substitution_of_equivalents }.
% 0.44/1.12  (994) {G0,W1,D1,L1,V0,M1}  { op_implies_or }.
% 0.44/1.12  (995) {G0,W1,D1,L1,V0,M1}  { op_and }.
% 0.44/1.12  (996) {G0,W1,D1,L1,V0,M1}  { op_equiv }.
% 0.44/1.12  (997) {G0,W1,D1,L1,V0,M1}  { ! r2 }.
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  Total Proof:
% 0.44/1.12  
% 0.44/1.12  subsumption: (25) {G0,W7,D4,L2,V2,M2} I { ! or_2, is_a_theorem( implies( Y
% 0.44/1.12    , or( X, Y ) ) ) }.
% 0.44/1.12  parent0: (939) {G0,W7,D4,L2,V2,M2}  { ! or_2, is_a_theorem( implies( Y, or
% 0.44/1.12    ( X, Y ) ) ) }.
% 0.44/1.12  substitution0:
% 0.44/1.12     X := X
% 0.44/1.12     Y := Y
% 0.44/1.12  end
% 0.44/1.12  permutation0:
% 0.44/1.12     0 ==> 0
% 0.44/1.12     1 ==> 1
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  subsumption: (50) {G0,W7,D4,L2,V0,M2} I { ! is_a_theorem( implies( skol46, 
% 0.44/1.12    or( skol24, skol46 ) ) ), r2 }.
% 0.44/1.12  parent0: (964) {G0,W7,D4,L2,V0,M2}  { ! is_a_theorem( implies( skol46, or( 
% 0.44/1.12    skol24, skol46 ) ) ), r2 }.
% 0.44/1.12  substitution0:
% 0.44/1.12  end
% 0.44/1.12  permutation0:
% 0.44/1.12     0 ==> 0
% 0.44/1.12     1 ==> 1
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  subsumption: (74) {G0,W1,D1,L1,V0,M1} I { or_2 }.
% 0.44/1.12  parent0: (988) {G0,W1,D1,L1,V0,M1}  { or_2 }.
% 0.44/1.12  substitution0:
% 0.44/1.12  end
% 0.44/1.12  permutation0:
% 0.44/1.12     0 ==> 0
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  subsumption: (82) {G0,W1,D1,L1,V0,M1} I { ! r2 }.
% 0.44/1.12  parent0: (997) {G0,W1,D1,L1,V0,M1}  { ! r2 }.
% 0.44/1.12  substitution0:
% 0.44/1.12  end
% 0.44/1.12  permutation0:
% 0.44/1.12     0 ==> 0
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  resolution: (1016) {G1,W6,D4,L1,V2,M1}  { is_a_theorem( implies( X, or( Y, 
% 0.44/1.12    X ) ) ) }.
% 0.44/1.12  parent0[0]: (25) {G0,W7,D4,L2,V2,M2} I { ! or_2, is_a_theorem( implies( Y, 
% 0.44/1.12    or( X, Y ) ) ) }.
% 0.44/1.12  parent1[0]: (74) {G0,W1,D1,L1,V0,M1} I { or_2 }.
% 0.44/1.12  substitution0:
% 0.44/1.12     X := Y
% 0.44/1.12     Y := X
% 0.44/1.12  end
% 0.44/1.12  substitution1:
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  subsumption: (173) {G1,W6,D4,L1,V2,M1} S(25);r(74) { is_a_theorem( implies
% 0.44/1.12    ( Y, or( X, Y ) ) ) }.
% 0.44/1.12  parent0: (1016) {G1,W6,D4,L1,V2,M1}  { is_a_theorem( implies( X, or( Y, X )
% 0.44/1.12     ) ) }.
% 0.44/1.12  substitution0:
% 0.44/1.12     X := Y
% 0.44/1.12     Y := X
% 0.44/1.12  end
% 0.44/1.12  permutation0:
% 0.44/1.12     0 ==> 0
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  resolution: (1017) {G1,W1,D1,L1,V0,M1}  { r2 }.
% 0.44/1.12  parent0[0]: (50) {G0,W7,D4,L2,V0,M2} I { ! is_a_theorem( implies( skol46, 
% 0.44/1.12    or( skol24, skol46 ) ) ), r2 }.
% 0.44/1.12  parent1[0]: (173) {G1,W6,D4,L1,V2,M1} S(25);r(74) { is_a_theorem( implies( 
% 0.44/1.12    Y, or( X, Y ) ) ) }.
% 0.44/1.12  substitution0:
% 0.44/1.12  end
% 0.44/1.12  substitution1:
% 0.44/1.12     X := skol24
% 0.44/1.12     Y := skol46
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  resolution: (1018) {G1,W0,D0,L0,V0,M0}  {  }.
% 0.44/1.12  parent0[0]: (82) {G0,W1,D1,L1,V0,M1} I { ! r2 }.
% 0.44/1.12  parent1[0]: (1017) {G1,W1,D1,L1,V0,M1}  { r2 }.
% 0.44/1.12  substitution0:
% 0.44/1.12  end
% 0.44/1.12  substitution1:
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  subsumption: (912) {G2,W0,D0,L0,V0,M0} S(50);r(173);r(82) {  }.
% 0.44/1.12  parent0: (1018) {G1,W0,D0,L0,V0,M0}  {  }.
% 0.44/1.12  substitution0:
% 0.44/1.12  end
% 0.44/1.12  permutation0:
% 0.44/1.12  end
% 0.44/1.12  
% 0.44/1.12  Proof check complete!
% 0.44/1.12  
% 0.44/1.12  Memory use:
% 0.44/1.12  
% 0.44/1.12  space for terms:        11054
% 0.44/1.12  space for clauses:      47376
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  clauses generated:      1850
% 0.44/1.12  clauses kept:           913
% 0.44/1.12  clauses selected:       100
% 0.44/1.12  clauses deleted:        32
% 0.44/1.12  clauses inuse deleted:  0
% 0.44/1.12  
% 0.44/1.12  subsentry:          4051
% 0.44/1.12  literals s-matched: 3515
% 0.44/1.12  literals matched:   3515
% 0.44/1.12  full subsumption:   203
% 0.44/1.12  
% 0.44/1.12  checksum:           -672316081
% 0.44/1.12  
% 0.44/1.12  
% 0.44/1.12  Bliksem ended
%------------------------------------------------------------------------------