TSTP Solution File: SWC032-1 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SWC032-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n016.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 : Tue Jul 19 19:33:09 EDT 2022

% Result   : Unsatisfiable 1.61s 1.98s
% Output   : Refutation 1.61s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SWC032-1 : TPTP v8.1.0. Released v2.4.0.
% 0.03/0.13  % Command  : bliksem %s
% 0.13/0.34  % Computer : n016.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % DateTime : Sun Jun 12 23:39:28 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.73/1.13  *** allocated 10000 integers for termspace/termends
% 0.73/1.13  *** allocated 10000 integers for clauses
% 0.73/1.13  *** allocated 10000 integers for justifications
% 0.73/1.13  Bliksem 1.12
% 0.73/1.13  
% 0.73/1.13  
% 0.73/1.13  Automatic Strategy Selection
% 0.73/1.13  
% 0.73/1.13  Clauses:
% 0.73/1.13  [
% 0.73/1.13     [ equalelemsP( nil ) ],
% 0.73/1.13     [ duplicatefreeP( nil ) ],
% 0.73/1.13     [ strictorderedP( nil ) ],
% 0.73/1.13     [ totalorderedP( nil ) ],
% 0.73/1.13     [ strictorderP( nil ) ],
% 0.73/1.13     [ totalorderP( nil ) ],
% 0.73/1.13     [ cyclefreeP( nil ) ],
% 0.73/1.13     [ ssList( nil ) ],
% 0.73/1.13     [ ssItem( skac3 ) ],
% 0.73/1.13     [ ssItem( skac2 ) ],
% 0.73/1.13     [ ~( singletonP( nil ) ) ],
% 0.73/1.13     [ ssItem( skaf83( X ) ) ],
% 0.73/1.13     [ ssList( skaf82( X ) ) ],
% 0.73/1.13     [ ssList( skaf81( X ) ) ],
% 0.73/1.13     [ ssList( skaf80( X ) ) ],
% 0.73/1.13     [ ssItem( skaf79( X ) ) ],
% 0.73/1.13     [ ssItem( skaf78( X ) ) ],
% 0.73/1.13     [ ssList( skaf77( X ) ) ],
% 0.73/1.13     [ ssList( skaf76( X ) ) ],
% 0.73/1.13     [ ssList( skaf75( X ) ) ],
% 0.73/1.13     [ ssItem( skaf74( X ) ) ],
% 0.73/1.13     [ ssList( skaf73( X ) ) ],
% 0.73/1.13     [ ssList( skaf72( X ) ) ],
% 0.73/1.13     [ ssList( skaf71( X ) ) ],
% 0.73/1.13     [ ssItem( skaf70( X ) ) ],
% 0.73/1.13     [ ssItem( skaf69( X ) ) ],
% 0.73/1.13     [ ssList( skaf68( X ) ) ],
% 0.73/1.13     [ ssList( skaf67( X ) ) ],
% 0.73/1.13     [ ssList( skaf66( X ) ) ],
% 0.73/1.13     [ ssItem( skaf65( X ) ) ],
% 0.73/1.13     [ ssItem( skaf64( X ) ) ],
% 0.73/1.13     [ ssList( skaf63( X ) ) ],
% 0.73/1.13     [ ssList( skaf62( X ) ) ],
% 0.73/1.13     [ ssList( skaf61( X ) ) ],
% 0.73/1.13     [ ssItem( skaf60( X ) ) ],
% 0.73/1.13     [ ssItem( skaf59( X ) ) ],
% 0.73/1.13     [ ssList( skaf58( X ) ) ],
% 0.73/1.13     [ ssList( skaf57( X ) ) ],
% 0.73/1.13     [ ssList( skaf56( X ) ) ],
% 0.73/1.13     [ ssItem( skaf55( X ) ) ],
% 0.73/1.13     [ ssItem( skaf54( X ) ) ],
% 0.73/1.13     [ ssList( skaf53( X ) ) ],
% 0.73/1.13     [ ssList( skaf52( X ) ) ],
% 0.73/1.13     [ ssList( skaf51( X ) ) ],
% 0.73/1.13     [ ssItem( skaf50( X ) ) ],
% 0.73/1.13     [ ssItem( skaf49( X ) ) ],
% 0.73/1.13     [ ssItem( skaf44( X ) ) ],
% 0.73/1.13     [ ssList( skaf48( X, Y ) ) ],
% 0.73/1.13     [ ssList( skaf47( X, Y ) ) ],
% 0.73/1.13     [ ssList( skaf46( X, Y ) ) ],
% 0.73/1.13     [ ssList( skaf45( X, Y ) ) ],
% 0.73/1.13     [ ssList( skaf43( X, Y ) ) ],
% 0.73/1.13     [ ssList( skaf42( X, Y ) ) ],
% 0.73/1.13     [ ~( =( skac3, skac2 ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), geq( X, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), segmentP( X, nil ) ],
% 0.73/1.13     [ ~( ssList( X ) ), segmentP( X, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), rearsegP( X, nil ) ],
% 0.73/1.13     [ ~( ssList( X ) ), rearsegP( X, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), frontsegP( X, nil ) ],
% 0.73/1.13     [ ~( ssList( X ) ), frontsegP( X, X ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), leq( X, X ) ],
% 0.73/1.13     [ ~( lt( X, X ) ), ~( ssItem( X ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), equalelemsP( cons( X, nil ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), duplicatefreeP( cons( X, nil ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), strictorderedP( cons( X, nil ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), totalorderedP( cons( X, nil ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), strictorderP( cons( X, nil ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), totalorderP( cons( X, nil ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), cyclefreeP( cons( X, nil ) ) ],
% 0.73/1.13     [ ~( memberP( nil, X ) ), ~( ssItem( X ) ) ],
% 0.73/1.13     [ ~( ssList( X ) ), duplicatefreeP( X ), ssItem( Y ) ],
% 0.73/1.13     [ ~( ssList( X ) ), =( app( X, nil ), X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), =( app( nil, X ), X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ssList( tl( X ) ), =( nil, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ssItem( hd( X ) ), =( nil, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ssList( tl( X ) ), =( nil, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ssItem( hd( X ) ), =( nil, X ) ],
% 0.73/1.13     [ ~( =( nil, X ) ), ~( ssList( X ) ), segmentP( nil, X ) ],
% 0.73/1.13     [ ~( segmentP( nil, X ) ), ~( ssList( X ) ), =( nil, X ) ],
% 0.73/1.13     [ ~( =( nil, X ) ), ~( ssList( X ) ), rearsegP( nil, X ) ],
% 0.73/1.13     [ ~( rearsegP( nil, X ) ), ~( ssList( X ) ), =( nil, X ) ],
% 0.73/1.13     [ ~( =( nil, X ) ), ~( ssList( X ) ), frontsegP( nil, X ) ],
% 0.73/1.13     [ ~( frontsegP( nil, X ) ), ~( ssList( X ) ), =( nil, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ~( ssList( Y ) ), ssList( app( Y, X ) ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), ~( ssList( Y ) ), ssList( cons( X, Y ) ) ],
% 0.73/1.13     [ ~( ssList( X ) ), cyclefreeP( X ), leq( skaf50( X ), skaf49( X ) ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), cyclefreeP( X ), leq( skaf49( X ), skaf50( X ) ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( =( skaf79( X ), skaf78( X ) ) ), ~( ssList( X ) ), equalelemsP( X )
% 0.73/1.13     ],
% 0.73/1.13     [ ~( lt( skaf69( X ), skaf70( X ) ) ), ~( ssList( X ) ), strictorderedP( 
% 0.73/1.13    X ) ],
% 0.73/1.13     [ ~( leq( skaf64( X ), skaf65( X ) ) ), ~( ssList( X ) ), totalorderedP( 
% 0.73/1.13    X ) ],
% 0.73/1.13     [ ~( lt( skaf60( X ), skaf59( X ) ) ), ~( ssList( X ) ), strictorderP( X
% 0.73/1.13     ) ],
% 0.73/1.13     [ ~( lt( skaf59( X ), skaf60( X ) ) ), ~( ssList( X ) ), strictorderP( X
% 0.73/1.13     ) ],
% 0.73/1.13     [ ~( leq( skaf55( X ), skaf54( X ) ) ), ~( ssList( X ) ), totalorderP( X
% 0.73/1.13     ) ],
% 0.73/1.13     [ ~( leq( skaf54( X ), skaf55( X ) ) ), ~( ssList( X ) ), totalorderP( X
% 0.73/1.13     ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), ~( ssList( Y ) ), =( tl( cons( X, Y ) ), Y ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), ~( ssList( Y ) ), =( hd( cons( X, Y ) ), X ) ],
% 0.73/1.13     [ ~( =( cons( X, Y ), nil ) ), ~( ssItem( X ) ), ~( ssList( Y ) ) ],
% 0.73/1.13     [ ~( =( cons( X, Y ), Y ) ), ~( ssItem( X ) ), ~( ssList( Y ) ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ~( ssList( Y ) ), neq( Y, X ), =( Y, X ) ],
% 0.73/1.13     [ ~( singletonP( X ) ), ~( ssList( X ) ), =( cons( skaf44( X ), nil ), X
% 0.73/1.13     ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), ~( ssItem( Y ) ), neq( Y, X ), =( Y, X ) ],
% 0.73/1.13     [ ~( lt( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), leq( X, Y ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), =( cons( hd( X ), tl( X ) ), X ), =( nil, X ) ],
% 0.73/1.13     [ ~( gt( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), lt( Y, X ) ],
% 0.73/1.13     [ ~( lt( X, Y ) ), ~( ssItem( X ) ), ~( ssItem( Y ) ), gt( Y, X ) ],
% 0.73/1.13     [ ~( geq( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), leq( Y, X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( leq( X, Y ) ), ~( ssItem( X ) ), ~( ssItem( Y ) ), geq( Y, X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), =( cons( skaf83( X ), skaf82( X ) ), X ), =( nil, X
% 0.73/1.13     ) ],
% 0.73/1.13     [ ~( gt( X, Y ) ), ~( gt( Y, X ) ), ~( ssItem( X ) ), ~( ssItem( Y ) ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( =( X, Y ) ), ~( lt( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( =( nil, X ) ), ~( ssList( X ) ), ~( ssItem( Y ) ), strictorderedP( 
% 0.73/1.13    cons( Y, X ) ) ],
% 0.73/1.13     [ ~( =( nil, X ) ), ~( ssList( X ) ), ~( ssItem( Y ) ), totalorderedP( 
% 0.73/1.13    cons( Y, X ) ) ],
% 0.73/1.13     [ ~( lt( X, Y ) ), ~( lt( Y, X ) ), ~( ssItem( X ) ), ~( ssItem( Y ) ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( =( X, Y ) ), ~( neq( X, Y ) ), ~( ssList( Y ) ), ~( ssList( X ) ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( =( cons( X, nil ), Y ) ), ~( ssItem( X ) ), ~( ssList( Y ) ), 
% 0.73/1.13    singletonP( Y ) ],
% 0.73/1.13     [ ~( =( X, Y ) ), ~( neq( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( =( app( X, Y ), nil ) ), ~( ssList( Y ) ), ~( ssList( X ) ), =( nil
% 0.73/1.13    , X ) ],
% 0.73/1.13     [ ~( =( app( X, Y ), nil ) ), ~( ssList( Y ) ), ~( ssList( X ) ), =( nil
% 0.73/1.13    , Y ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), ~( ssList( Y ) ), =( app( cons( X, nil ), Y ), cons( 
% 0.73/1.13    X, Y ) ) ],
% 0.73/1.13     [ ~( leq( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), lt( X, Y ), =( X
% 0.73/1.13    , Y ) ],
% 0.73/1.13     [ ~( leq( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), lt( X, Y ), =( X
% 0.73/1.13    , Y ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ~( ssList( Y ) ), =( nil, Y ), =( hd( app( Y, X ) )
% 0.73/1.13    , hd( Y ) ) ],
% 0.73/1.13     [ ~( strictorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), ~( ssItem( X )
% 0.73/1.13     ), strictorderedP( Y ), =( nil, Y ) ],
% 0.73/1.13     [ ~( totalorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), ~( ssItem( X ) )
% 0.73/1.13    , totalorderedP( Y ), =( nil, Y ) ],
% 0.73/1.13     [ ~( geq( X, Y ) ), ~( geq( Y, X ) ), ~( ssItem( X ) ), ~( ssItem( Y ) )
% 0.73/1.13    , =( Y, X ) ],
% 0.73/1.13     [ ~( segmentP( X, Y ) ), ~( segmentP( Y, X ) ), ~( ssList( X ) ), ~( 
% 0.73/1.13    ssList( Y ) ), =( Y, X ) ],
% 0.73/1.13     [ ~( rearsegP( X, Y ) ), ~( rearsegP( Y, X ) ), ~( ssList( X ) ), ~( 
% 0.73/1.13    ssList( Y ) ), =( Y, X ) ],
% 0.73/1.13     [ ~( frontsegP( X, Y ) ), ~( frontsegP( Y, X ) ), ~( ssList( X ) ), ~( 
% 0.73/1.13    ssList( Y ) ), =( Y, X ) ],
% 0.73/1.13     [ ~( leq( X, Y ) ), ~( leq( Y, X ) ), ~( ssItem( X ) ), ~( ssItem( Y ) )
% 0.73/1.13    , =( Y, X ) ],
% 0.73/1.13     [ ~( rearsegP( X, Y ) ), ~( ssList( Y ) ), ~( ssList( X ) ), =( app( 
% 0.73/1.13    skaf46( X, Y ), Y ), X ) ],
% 0.73/1.13     [ ~( frontsegP( X, Y ) ), ~( ssList( Y ) ), ~( ssList( X ) ), =( app( Y
% 0.73/1.13    , skaf45( X, Y ) ), X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ~( ssList( Y ) ), =( nil, Y ), =( tl( app( Y, X ) )
% 0.73/1.13    , app( tl( Y ), X ) ) ],
% 0.73/1.13     [ ~( strictorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), ~( ssItem( X )
% 0.73/1.13     ), lt( X, hd( Y ) ), =( nil, Y ) ],
% 0.73/1.13     [ ~( totalorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), ~( ssItem( X ) )
% 0.73/1.13    , leq( X, hd( Y ) ), =( nil, Y ) ],
% 0.73/1.13     [ ~( rearsegP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( Y ) ), ~( ssList( 
% 0.73/1.13    X ) ), rearsegP( app( Z, X ), Y ) ],
% 0.73/1.13     [ ~( frontsegP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( Y ) ), ~( ssList( 
% 0.73/1.13    X ) ), frontsegP( app( X, Z ), Y ) ],
% 0.73/1.13     [ ~( =( X, Y ) ), ~( ssList( Z ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), 
% 0.73/1.13    memberP( cons( Y, Z ), X ) ],
% 0.73/1.13     [ ~( memberP( X, Y ) ), ~( ssList( X ) ), ~( ssItem( Z ) ), ~( ssItem( Y
% 0.73/1.13     ) ), memberP( cons( Z, X ), Y ) ],
% 0.73/1.13     [ ~( memberP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( Y
% 0.73/1.13     ) ), memberP( app( X, Z ), Y ) ],
% 0.73/1.13     [ ~( memberP( X, Y ) ), ~( ssList( X ) ), ~( ssList( Z ) ), ~( ssItem( Y
% 0.73/1.13     ) ), memberP( app( Z, X ), Y ) ],
% 0.73/1.13     [ ~( ssList( X ) ), equalelemsP( X ), =( app( skaf80( X ), cons( skaf78( 
% 0.73/1.13    X ), cons( skaf79( X ), skaf81( X ) ) ) ), X ) ],
% 0.73/1.13     [ ~( =( app( X, Y ), Z ) ), ~( ssList( X ) ), ~( ssList( Y ) ), ~( 
% 0.73/1.13    ssList( Z ) ), rearsegP( Z, Y ) ],
% 0.73/1.13     [ ~( =( app( X, Y ), Z ) ), ~( ssList( Y ) ), ~( ssList( X ) ), ~( 
% 0.73/1.13    ssList( Z ) ), frontsegP( Z, X ) ],
% 0.73/1.13     [ ~( =( nil, X ) ), ~( =( nil, Y ) ), ~( ssList( Y ) ), ~( ssList( X ) )
% 0.73/1.13    , =( app( X, Y ), nil ) ],
% 0.73/1.13     [ ~( gt( X, Y ) ), ~( gt( Y, Z ) ), ~( ssItem( Z ) ), ~( ssItem( Y ) ), 
% 0.73/1.13    ~( ssItem( X ) ), gt( X, Z ) ],
% 0.73/1.13     [ ~( leq( X, Y ) ), ~( lt( Y, Z ) ), ~( ssItem( Z ) ), ~( ssItem( Y ) )
% 0.73/1.13    , ~( ssItem( X ) ), lt( X, Z ) ],
% 0.73/1.13     [ ~( geq( X, Y ) ), ~( geq( Y, Z ) ), ~( ssItem( Z ) ), ~( ssItem( Y ) )
% 0.73/1.13    , ~( ssItem( X ) ), geq( X, Z ) ],
% 0.73/1.13     [ ~( ssList( X ) ), ~( ssList( Y ) ), ~( ssList( Z ) ), =( app( app( Z, 
% 0.73/1.13    Y ), X ), app( Z, app( Y, X ) ) ) ],
% 0.73/1.13     [ ~( =( app( X, Y ), app( X, Z ) ) ), ~( ssList( Y ) ), ~( ssList( X ) )
% 0.73/1.13    , ~( ssList( Z ) ), =( Y, Z ) ],
% 0.73/1.13     [ ~( =( app( X, Y ), app( Z, Y ) ) ), ~( ssList( X ) ), ~( ssList( Y ) )
% 0.73/1.13    , ~( ssList( Z ) ), =( X, Z ) ],
% 0.73/1.13     [ ~( segmentP( X, Y ) ), ~( segmentP( Y, Z ) ), ~( ssList( Z ) ), ~( 
% 0.73/1.13    ssList( Y ) ), ~( ssList( X ) ), segmentP( X, Z ) ],
% 0.73/1.13     [ ~( rearsegP( X, Y ) ), ~( rearsegP( Y, Z ) ), ~( ssList( Z ) ), ~( 
% 0.73/1.13    ssList( Y ) ), ~( ssList( X ) ), rearsegP( X, Z ) ],
% 0.73/1.13     [ ~( frontsegP( X, Y ) ), ~( frontsegP( Y, Z ) ), ~( ssList( Z ) ), ~( 
% 0.73/1.13    ssList( Y ) ), ~( ssList( X ) ), frontsegP( X, Z ) ],
% 0.73/1.13     [ ~( lt( X, Y ) ), ~( lt( Y, Z ) ), ~( ssItem( Z ) ), ~( ssItem( Y ) ), 
% 0.73/1.13    ~( ssItem( X ) ), lt( X, Z ) ],
% 0.73/1.13     [ ~( leq( X, Y ) ), ~( leq( Y, Z ) ), ~( ssItem( Z ) ), ~( ssItem( Y ) )
% 0.73/1.13    , ~( ssItem( X ) ), leq( X, Z ) ],
% 0.73/1.13     [ ~( ssItem( X ) ), ~( ssList( Y ) ), ~( ssList( Z ) ), =( cons( X, app( 
% 0.73/1.13    Y, Z ) ), app( cons( X, Y ), Z ) ) ],
% 0.73/1.13     [ ~( memberP( app( X, Y ), Z ) ), ~( ssList( Y ) ), ~( ssList( X ) ), 
% 0.73/1.13    ~( ssItem( Z ) ), memberP( Y, Z ), memberP( X, Z ) ],
% 0.73/1.13     [ ~( leq( X, hd( Y ) ) ), ~( totalorderedP( Y ) ), ~( ssList( Y ) ), ~( 
% 0.73/1.13    ssItem( X ) ), totalorderedP( cons( X, Y ) ), =( nil, Y ) ],
% 0.73/1.13     [ ~( lt( X, hd( Y ) ) ), ~( strictorderedP( Y ) ), ~( ssList( Y ) ), ~( 
% 0.73/1.13    ssItem( X ) ), strictorderedP( cons( X, Y ) ), =( nil, Y ) ],
% 0.73/1.13     [ ~( memberP( cons( X, Y ), Z ) ), ~( ssList( Y ) ), ~( ssItem( X ) ), 
% 0.73/1.13    ~( ssItem( Z ) ), memberP( Y, Z ), =( Z, X ) ],
% 0.73/1.13     [ ~( ssList( X ) ), duplicatefreeP( X ), =( app( app( skaf75( X ), cons( 
% 0.73/1.13    skaf74( X ), skaf76( X ) ) ), cons( skaf74( X ), skaf77( X ) ) ), X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), strictorderedP( X ), =( app( app( skaf71( X ), cons( 
% 0.73/1.13    skaf69( X ), skaf72( X ) ) ), cons( skaf70( X ), skaf73( X ) ) ), X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), totalorderedP( X ), =( app( app( skaf66( X ), cons( 
% 0.73/1.13    skaf64( X ), skaf67( X ) ) ), cons( skaf65( X ), skaf68( X ) ) ), X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), strictorderP( X ), =( app( app( skaf61( X ), cons( 
% 0.73/1.13    skaf59( X ), skaf62( X ) ) ), cons( skaf60( X ), skaf63( X ) ) ), X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), totalorderP( X ), =( app( app( skaf56( X ), cons( 
% 0.73/1.13    skaf54( X ), skaf57( X ) ) ), cons( skaf55( X ), skaf58( X ) ) ), X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( ssList( X ) ), cyclefreeP( X ), =( app( app( skaf51( X ), cons( 
% 0.73/1.13    skaf49( X ), skaf52( X ) ) ), cons( skaf50( X ), skaf53( X ) ) ), X ) ]
% 0.73/1.13    ,
% 0.73/1.13     [ ~( segmentP( X, Y ) ), ~( ssList( Y ) ), ~( ssList( X ) ), =( app( app( 
% 0.73/1.13    skaf47( X, Y ), Y ), skaf48( Y, X ) ), X ) ],
% 0.73/1.13     [ ~( memberP( X, Y ) ), ~( ssItem( Y ) ), ~( ssList( X ) ), =( app( 
% 0.73/1.13    skaf42( X, Y ), cons( Y, skaf43( Y, X ) ) ), X ) ],
% 0.73/1.13     [ ~( =( cons( X, Y ), cons( Z, T ) ) ), ~( ssItem( Z ) ), ~( ssItem( X )
% 0.73/1.13     ), ~( ssList( T ) ), ~( ssList( Y ) ), =( X, Z ) ],
% 0.73/1.13     [ ~( =( cons( X, Y ), cons( Z, T ) ) ), ~( ssItem( Z ) ), ~( ssItem( X )
% 0.73/1.13     ), ~( ssList( T ) ), ~( ssList( Y ) ), =( T, Y ) ],
% 0.73/1.13     [ ~( segmentP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( T ) ), ~( ssList( 
% 0.73/1.14    Y ) ), ~( ssList( X ) ), segmentP( app( app( T, X ), Z ), Y ) ],
% 0.73/1.14     [ ~( =( app( app( X, Y ), Z ), T ) ), ~( ssList( Z ) ), ~( ssList( X ) )
% 0.73/1.14    , ~( ssList( Y ) ), ~( ssList( T ) ), segmentP( T, Y ) ],
% 0.73/1.14     [ ~( frontsegP( cons( X, Y ), cons( Z, T ) ) ), ~( ssList( T ) ), ~( 
% 0.73/1.14    ssList( Y ) ), ~( ssItem( Z ) ), ~( ssItem( X ) ), frontsegP( Y, T ) ]
% 0.73/1.14    ,
% 0.73/1.14     [ ~( =( app( X, cons( Y, Z ) ), T ) ), ~( ssList( Z ) ), ~( ssList( X )
% 0.73/1.14     ), ~( ssItem( Y ) ), ~( ssList( T ) ), memberP( T, Y ) ],
% 0.73/1.14     [ ~( frontsegP( cons( X, Y ), cons( Z, T ) ) ), ~( ssList( T ) ), ~( 
% 0.73/1.14    ssList( Y ) ), ~( ssItem( Z ) ), ~( ssItem( X ) ), =( X, Z ) ],
% 0.73/1.14     [ ~( =( tl( X ), tl( Y ) ) ), ~( =( hd( X ), hd( Y ) ) ), ~( ssList( X )
% 0.73/1.14     ), ~( ssList( Y ) ), =( nil, Y ), =( X, Y ), =( nil, X ) ],
% 0.73/1.14     [ ~( frontsegP( X, Y ) ), ~( =( Z, T ) ), ~( ssList( Y ) ), ~( ssList( X
% 0.73/1.14     ) ), ~( ssItem( T ) ), ~( ssItem( Z ) ), frontsegP( cons( Z, X ), cons( 
% 0.73/1.14    T, Y ) ) ],
% 0.73/1.14     [ ~( =( app( app( X, cons( Y, Z ) ), cons( Y, T ) ), U ) ), ~( ssList( T
% 0.73/1.14     ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( Y ) ), ~( 
% 0.73/1.14    duplicatefreeP( U ) ), ~( ssList( U ) ) ],
% 0.73/1.14     [ ~( =( app( X, cons( Y, cons( Z, T ) ) ), U ) ), ~( ssList( T ) ), ~( 
% 0.73/1.14    ssList( X ) ), ~( ssItem( Z ) ), ~( ssItem( Y ) ), ~( equalelemsP( U ) )
% 0.73/1.14    , ~( ssList( U ) ), =( Y, Z ) ],
% 0.73/1.14     [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) ), ~( ssList( U
% 0.73/1.14     ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) ), ~( ssItem( Y
% 0.73/1.14     ) ), ~( strictorderedP( W ) ), ~( ssList( W ) ), lt( Y, T ) ],
% 0.73/1.14     [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) ), ~( ssList( U
% 0.73/1.14     ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) ), ~( ssItem( Y
% 0.73/1.14     ) ), ~( totalorderedP( W ) ), ~( ssList( W ) ), leq( Y, T ) ],
% 0.73/1.14     [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) ), ~( ssList( U
% 0.73/1.14     ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) ), ~( ssItem( Y
% 0.73/1.14     ) ), ~( strictorderP( W ) ), ~( ssList( W ) ), lt( Y, T ), lt( T, Y ) ]
% 0.73/1.14    ,
% 0.73/1.14     [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) ), ~( ssList( U
% 0.73/1.14     ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) ), ~( ssItem( Y
% 0.73/1.14     ) ), ~( totalorderP( W ) ), ~( ssList( W ) ), leq( Y, T ), leq( T, Y ) ]
% 0.73/1.14    ,
% 0.73/1.14     [ ~( leq( X, Y ) ), ~( leq( Y, X ) ), ~( =( app( app( Z, cons( X, T ) )
% 0.73/1.14    , cons( Y, U ) ), W ) ), ~( ssList( U ) ), ~( ssList( T ) ), ~( ssList( Z
% 0.73/1.14     ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), ~( cyclefreeP( W ) ), ~( ssList( 
% 0.73/1.14    W ) ) ],
% 0.73/1.14     [ ssList( sk1 ) ],
% 0.73/1.14     [ ssList( sk2 ) ],
% 0.73/1.14     [ ssList( sk3 ) ],
% 0.73/1.14     [ ssList( sk4 ) ],
% 0.73/1.14     [ =( sk2, sk4 ) ],
% 0.73/1.14     [ =( sk1, sk3 ) ],
% 0.73/1.14     [ ssList( sk5 ) ],
% 0.73/1.14     [ =( app( sk3, sk5 ), sk4 ) ],
% 0.73/1.14     [ strictorderedP( sk3 ) ],
% 0.73/1.14     [ ~( ssItem( X ) ), ~( ssList( Y ) ), ~( =( app( cons( X, nil ), Y ), 
% 0.73/1.14    sk5 ) ), ~( ssItem( Z ) ), ~( ssList( T ) ), ~( =( app( T, cons( Z, nil )
% 0.73/1.14     ), sk3 ) ), ~( lt( Z, X ) ) ],
% 0.73/1.14     [ =( nil, sk4 ), ~( =( nil, sk3 ) ) ],
% 0.73/1.14     [ =( nil, sk2 ), =( nil, sk1 ) ],
% 0.73/1.14     [ =( nil, sk2 ), ~( =( nil, sk2 ) ) ],
% 0.73/1.14     [ ~( =( nil, sk1 ) ), =( nil, sk1 ) ],
% 0.73/1.14     [ ~( =( nil, sk1 ) ), ~( =( nil, sk2 ) ) ]
% 0.73/1.14  ] .
% 0.73/1.14  
% 0.73/1.14  
% 0.73/1.14  percentage equality = 0.172358, percentage horn = 0.841026
% 0.73/1.14  This is a problem with some equality
% 0.73/1.14  
% 0.73/1.14  
% 0.73/1.14  
% 0.73/1.14  Options Used:
% 0.73/1.14  
% 0.73/1.14  useres =            1
% 0.73/1.14  useparamod =        1
% 0.73/1.14  useeqrefl =         1
% 0.73/1.14  useeqfact =         1
% 0.73/1.14  usefactor =         1
% 0.73/1.14  usesimpsplitting =  0
% 0.73/1.14  usesimpdemod =      5
% 0.73/1.14  usesimpres =        3
% 0.73/1.14  
% 0.73/1.14  resimpinuse      =  1000
% 0.73/1.14  resimpclauses =     20000
% 0.73/1.14  substype =          eqrewr
% 0.73/1.14  backwardsubs =      1
% 0.73/1.14  selectoldest =      5
% 0.73/1.14  
% 0.73/1.14  litorderings [0] =  split
% 0.73/1.14  litorderings [1] =  extend the termordering, first sorting on arguments
% 0.73/1.14  
% 0.73/1.14  termordering =      kbo
% 0.73/1.14  
% 0.73/1.14  litapriori =        0
% 0.73/1.14  termapriori =       1
% 0.73/1.14  litaposteriori =    0
% 0.73/1.14  termaposteriori =   0
% 0.73/1.14  demodaposteriori =  0
% 0.73/1.14  ordereqreflfact =   0
% 0.73/1.14  
% 0.73/1.14  litselect =         negord
% 0.73/1.14  
% 0.73/1.14  maxweight =         15
% 0.73/1.14  maxdepth =          30000
% 0.73/1.14  maxlength =         115
% 0.73/1.14  maxnrvars =         195
% 0.73/1.14  excuselevel =       1
% 0.73/1.14  increasemaxweight = 1
% 0.73/1.14  
% 0.73/1.14  maxselected =       10000000
% 0.73/1.14  maxnrclauses =      10000000
% 0.73/1.14  
% 0.73/1.14  showgenerated =    0
% 0.73/1.14  showkept =         0
% 0.73/1.14  showselected =     0
% 0.73/1.14  showdeleted =      0
% 1.61/1.98  showresimp =       1
% 1.61/1.98  showstatus =       2000
% 1.61/1.98  
% 1.61/1.98  prologoutput =     1
% 1.61/1.98  nrgoals =          5000000
% 1.61/1.98  totalproof =       1
% 1.61/1.98  
% 1.61/1.98  Symbols occurring in the translation:
% 1.61/1.98  
% 1.61/1.98  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 1.61/1.98  .  [1, 2]      (w:1, o:80, a:1, s:1, b:0), 
% 1.61/1.98  !  [4, 1]      (w:0, o:27, a:1, s:1, b:0), 
% 1.61/1.98  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.61/1.98  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.61/1.98  nil  [39, 0]      (w:1, o:16, a:1, s:1, b:0), 
% 1.61/1.98  equalelemsP  [40, 1]      (w:1, o:34, a:1, s:1, b:0), 
% 1.61/1.98  duplicatefreeP  [41, 1]      (w:1, o:33, a:1, s:1, b:0), 
% 1.61/1.98  strictorderedP  [42, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 1.61/1.98  totalorderedP  [43, 1]      (w:1, o:76, a:1, s:1, b:0), 
% 1.61/1.98  strictorderP  [44, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 1.61/1.98  totalorderP  [45, 1]      (w:1, o:77, a:1, s:1, b:0), 
% 1.61/1.98  cyclefreeP  [46, 1]      (w:1, o:32, a:1, s:1, b:0), 
% 1.61/1.98  ssList  [47, 1]      (w:1, o:35, a:1, s:1, b:0), 
% 1.61/1.98  skac3  [48, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 1.61/1.98  ssItem  [49, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 1.61/1.98  skac2  [50, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 1.61/1.98  singletonP  [51, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 1.61/1.98  skaf83  [53, 1]      (w:1, o:75, a:1, s:1, b:0), 
% 1.61/1.98  skaf82  [54, 1]      (w:1, o:74, a:1, s:1, b:0), 
% 1.61/1.98  skaf81  [55, 1]      (w:1, o:73, a:1, s:1, b:0), 
% 1.61/1.98  skaf80  [56, 1]      (w:1, o:72, a:1, s:1, b:0), 
% 1.61/1.98  skaf79  [57, 1]      (w:1, o:71, a:1, s:1, b:0), 
% 1.61/1.98  skaf78  [58, 1]      (w:1, o:70, a:1, s:1, b:0), 
% 1.61/1.98  skaf77  [59, 1]      (w:1, o:69, a:1, s:1, b:0), 
% 1.61/1.98  skaf76  [60, 1]      (w:1, o:68, a:1, s:1, b:0), 
% 1.61/1.98  skaf75  [61, 1]      (w:1, o:67, a:1, s:1, b:0), 
% 1.61/1.98  skaf74  [62, 1]      (w:1, o:66, a:1, s:1, b:0), 
% 1.61/1.98  skaf73  [63, 1]      (w:1, o:65, a:1, s:1, b:0), 
% 1.61/1.98  skaf72  [64, 1]      (w:1, o:64, a:1, s:1, b:0), 
% 1.61/1.98  skaf71  [65, 1]      (w:1, o:63, a:1, s:1, b:0), 
% 1.61/1.98  skaf70  [66, 1]      (w:1, o:62, a:1, s:1, b:0), 
% 1.61/1.98  skaf69  [67, 1]      (w:1, o:61, a:1, s:1, b:0), 
% 1.61/1.98  skaf68  [68, 1]      (w:1, o:60, a:1, s:1, b:0), 
% 1.61/1.98  skaf67  [69, 1]      (w:1, o:59, a:1, s:1, b:0), 
% 1.61/1.98  skaf66  [70, 1]      (w:1, o:58, a:1, s:1, b:0), 
% 1.61/1.98  skaf65  [71, 1]      (w:1, o:57, a:1, s:1, b:0), 
% 1.61/1.98  skaf64  [72, 1]      (w:1, o:56, a:1, s:1, b:0), 
% 1.61/1.98  skaf63  [73, 1]      (w:1, o:55, a:1, s:1, b:0), 
% 1.61/1.98  skaf62  [74, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 1.61/1.98  skaf61  [75, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 1.61/1.98  skaf60  [76, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 1.61/1.98  skaf59  [77, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 1.61/1.98  skaf58  [78, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 1.61/1.98  skaf57  [79, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 1.61/1.98  skaf56  [80, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 1.61/1.98  skaf55  [81, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 1.61/1.98  skaf54  [82, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 1.61/1.98  skaf53  [83, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 1.61/1.98  skaf52  [84, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 1.61/1.98  skaf51  [85, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 1.61/1.98  skaf50  [86, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 1.61/1.98  skaf49  [87, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 1.61/1.98  skaf44  [88, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 1.61/1.98  skaf48  [90, 2]      (w:1, o:109, a:1, s:1, b:0), 
% 1.61/1.98  skaf47  [91, 2]      (w:1, o:108, a:1, s:1, b:0), 
% 1.61/1.98  skaf46  [92, 2]      (w:1, o:107, a:1, s:1, b:0), 
% 1.61/1.98  skaf45  [93, 2]      (w:1, o:106, a:1, s:1, b:0), 
% 1.61/1.98  skaf43  [94, 2]      (w:1, o:111, a:1, s:1, b:0), 
% 1.61/1.98  skaf42  [95, 2]      (w:1, o:110, a:1, s:1, b:0), 
% 1.61/1.98  geq  [96, 2]      (w:1, o:113, a:1, s:1, b:0), 
% 1.61/1.98  segmentP  [97, 2]      (w:1, o:114, a:1, s:1, b:0), 
% 1.61/1.98  rearsegP  [98, 2]      (w:1, o:105, a:1, s:1, b:0), 
% 1.61/1.98  frontsegP  [99, 2]      (w:1, o:112, a:1, s:1, b:0), 
% 1.61/1.98  leq  [100, 2]      (w:1, o:115, a:1, s:1, b:0), 
% 1.61/1.98  lt  [101, 2]      (w:1, o:116, a:1, s:1, b:0), 
% 1.61/1.98  cons  [102, 2]      (w:1, o:117, a:1, s:1, b:0), 
% 1.61/1.98  memberP  [103, 2]      (w:1, o:118, a:1, s:1, b:0), 
% 1.61/1.98  app  [104, 2]      (w:1, o:119, a:1, s:1, b:0), 
% 1.61/1.98  tl  [105, 1]      (w:1, o:78, a:1, s:1, b:0), 
% 1.61/1.98  hd  [106, 1]      (w:1, o:79, a:1, s:1, b:0), 
% 1.61/1.98  neq  [107, 2]      (w:1, o:120, a:1, s:1, b:0), 
% 1.61/1.98  gt  [108, 2]      (w:1, o:121, a:1, s:1, b:0), 
% 1.61/1.98  sk1  [113, 0]      (w:1, o:7, a:1, s:1, b:0), 
% 1.61/1.98  sk2  [114, 0]      (w:1, o:8, a:1, s:1, b:0), 
% 1.61/1.98  sk3  [115, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 1.61/1.98  sk4  [116, 0]      (w:1, o:10, a:1, s:1, b:0), 
% 1.61/1.98  sk5  [117, 0]      (w:1, o:11, a:1, s:1, b:0).
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  Starting Search:
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  Intermediate Status:
% 1.61/1.98  Generated:    4083
% 1.61/1.98  Kept:         2000
% 1.61/1.98  Inuse:        208
% 1.61/1.98  Deleted:      2
% 1.61/1.98  Deletedinuse: 0
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  Intermediate Status:
% 1.61/1.98  Generated:    9237
% 1.61/1.98  Kept:         4802
% 1.61/1.98  Inuse:        292
% 1.61/1.98  Deleted:      4
% 1.61/1.98  Deletedinuse: 0
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  Intermediate Status:
% 1.61/1.98  Generated:    15278
% 1.61/1.98  Kept:         7255
% 1.61/1.98  Inuse:        372
% 1.61/1.98  Deleted:      4
% 1.61/1.98  Deletedinuse: 0
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  Intermediate Status:
% 1.61/1.98  Generated:    25710
% 1.61/1.98  Kept:         9573
% 1.61/1.98  Inuse:        407
% 1.61/1.98  Deleted:      4
% 1.61/1.98  Deletedinuse: 0
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  Intermediate Status:
% 1.61/1.98  Generated:    40941
% 1.61/1.98  Kept:         11644
% 1.61/1.98  Inuse:        457
% 1.61/1.98  Deleted:      6
% 1.61/1.98  Deletedinuse: 2
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  Intermediate Status:
% 1.61/1.98  Generated:    48767
% 1.61/1.98  Kept:         13756
% 1.61/1.98  Inuse:        512
% 1.61/1.98  Deleted:      6
% 1.61/1.98  Deletedinuse: 2
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  Done
% 1.61/1.98  
% 1.61/1.98  Resimplifying inuse:
% 1.61/1.98  
% 1.61/1.98  Bliksems!, er is een bewijs:
% 1.61/1.98  % SZS status Unsatisfiable
% 1.61/1.98  % SZS output start Refutation
% 1.61/1.98  
% 1.61/1.98  clause( 60, [ ~( ssList( X ) ), frontsegP( X, X ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 81, [ ~( frontsegP( nil, X ) ), ~( ssList( X ) ), =( nil, X ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 115, [ ~( =( app( X, Y ), nil ) ), ~( ssList( Y ) ), ~( ssList( X )
% 1.61/1.98     ), =( nil, X ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 146, [ ~( =( app( X, Y ), app( X, Z ) ) ), ~( ssList( Y ) ), ~( 
% 1.61/1.98    ssList( X ) ), ~( ssList( Z ) ), =( Y, Z ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 182, [ ssList( sk1 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 186, [ =( sk4, sk2 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 187, [ =( sk3, sk1 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 188, [ ssList( sk5 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 189, [ =( app( sk1, sk5 ), sk2 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 192, [ =( nil, sk2 ), ~( =( nil, sk1 ) ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 193, [ =( nil, sk2 ), =( nil, sk1 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 194, [ ~( =( nil, sk1 ) ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 562, [ frontsegP( sk1, sk1 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 1967, [ ~( =( X, sk1 ) ), ~( frontsegP( nil, X ) ), ~( ssList( X )
% 1.61/1.98     ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 1978, [ ~( frontsegP( nil, sk1 ) ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 13871, [ ~( ssList( sk1 ) ), =( nil, sk1 ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 14639, [ ~( =( app( Y, sk1 ), app( Y, X ) ) ), ~( ssList( Y ) ), 
% 1.61/1.98    ~( ssList( X ) ), ~( frontsegP( sk1, X ) ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 14931, [ ~( =( app( X, sk1 ), app( X, X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    ~( frontsegP( sk1, X ) ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 14933, [ ~( frontsegP( sk1, sk1 ) ) ] )
% 1.61/1.98  .
% 1.61/1.98  clause( 15067, [] )
% 1.61/1.98  .
% 1.61/1.98  
% 1.61/1.98  
% 1.61/1.98  % SZS output end Refutation
% 1.61/1.98  found a proof!
% 1.61/1.98  
% 1.61/1.98  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 1.61/1.98  
% 1.61/1.98  initialclauses(
% 1.61/1.98  [ clause( 15069, [ equalelemsP( nil ) ] )
% 1.61/1.98  , clause( 15070, [ duplicatefreeP( nil ) ] )
% 1.61/1.98  , clause( 15071, [ strictorderedP( nil ) ] )
% 1.61/1.98  , clause( 15072, [ totalorderedP( nil ) ] )
% 1.61/1.98  , clause( 15073, [ strictorderP( nil ) ] )
% 1.61/1.98  , clause( 15074, [ totalorderP( nil ) ] )
% 1.61/1.98  , clause( 15075, [ cyclefreeP( nil ) ] )
% 1.61/1.98  , clause( 15076, [ ssList( nil ) ] )
% 1.61/1.98  , clause( 15077, [ ssItem( skac3 ) ] )
% 1.61/1.98  , clause( 15078, [ ssItem( skac2 ) ] )
% 1.61/1.98  , clause( 15079, [ ~( singletonP( nil ) ) ] )
% 1.61/1.98  , clause( 15080, [ ssItem( skaf83( X ) ) ] )
% 1.61/1.98  , clause( 15081, [ ssList( skaf82( X ) ) ] )
% 1.61/1.98  , clause( 15082, [ ssList( skaf81( X ) ) ] )
% 1.61/1.98  , clause( 15083, [ ssList( skaf80( X ) ) ] )
% 1.61/1.98  , clause( 15084, [ ssItem( skaf79( X ) ) ] )
% 1.61/1.98  , clause( 15085, [ ssItem( skaf78( X ) ) ] )
% 1.61/1.98  , clause( 15086, [ ssList( skaf77( X ) ) ] )
% 1.61/1.98  , clause( 15087, [ ssList( skaf76( X ) ) ] )
% 1.61/1.98  , clause( 15088, [ ssList( skaf75( X ) ) ] )
% 1.61/1.98  , clause( 15089, [ ssItem( skaf74( X ) ) ] )
% 1.61/1.98  , clause( 15090, [ ssList( skaf73( X ) ) ] )
% 1.61/1.98  , clause( 15091, [ ssList( skaf72( X ) ) ] )
% 1.61/1.98  , clause( 15092, [ ssList( skaf71( X ) ) ] )
% 1.61/1.98  , clause( 15093, [ ssItem( skaf70( X ) ) ] )
% 1.61/1.98  , clause( 15094, [ ssItem( skaf69( X ) ) ] )
% 1.61/1.98  , clause( 15095, [ ssList( skaf68( X ) ) ] )
% 1.61/1.98  , clause( 15096, [ ssList( skaf67( X ) ) ] )
% 1.61/1.98  , clause( 15097, [ ssList( skaf66( X ) ) ] )
% 1.61/1.98  , clause( 15098, [ ssItem( skaf65( X ) ) ] )
% 1.61/1.98  , clause( 15099, [ ssItem( skaf64( X ) ) ] )
% 1.61/1.98  , clause( 15100, [ ssList( skaf63( X ) ) ] )
% 1.61/1.98  , clause( 15101, [ ssList( skaf62( X ) ) ] )
% 1.61/1.98  , clause( 15102, [ ssList( skaf61( X ) ) ] )
% 1.61/1.98  , clause( 15103, [ ssItem( skaf60( X ) ) ] )
% 1.61/1.98  , clause( 15104, [ ssItem( skaf59( X ) ) ] )
% 1.61/1.98  , clause( 15105, [ ssList( skaf58( X ) ) ] )
% 1.61/1.98  , clause( 15106, [ ssList( skaf57( X ) ) ] )
% 1.61/1.98  , clause( 15107, [ ssList( skaf56( X ) ) ] )
% 1.61/1.98  , clause( 15108, [ ssItem( skaf55( X ) ) ] )
% 1.61/1.98  , clause( 15109, [ ssItem( skaf54( X ) ) ] )
% 1.61/1.98  , clause( 15110, [ ssList( skaf53( X ) ) ] )
% 1.61/1.98  , clause( 15111, [ ssList( skaf52( X ) ) ] )
% 1.61/1.98  , clause( 15112, [ ssList( skaf51( X ) ) ] )
% 1.61/1.98  , clause( 15113, [ ssItem( skaf50( X ) ) ] )
% 1.61/1.98  , clause( 15114, [ ssItem( skaf49( X ) ) ] )
% 1.61/1.98  , clause( 15115, [ ssItem( skaf44( X ) ) ] )
% 1.61/1.98  , clause( 15116, [ ssList( skaf48( X, Y ) ) ] )
% 1.61/1.98  , clause( 15117, [ ssList( skaf47( X, Y ) ) ] )
% 1.61/1.98  , clause( 15118, [ ssList( skaf46( X, Y ) ) ] )
% 1.61/1.98  , clause( 15119, [ ssList( skaf45( X, Y ) ) ] )
% 1.61/1.98  , clause( 15120, [ ssList( skaf43( X, Y ) ) ] )
% 1.61/1.98  , clause( 15121, [ ssList( skaf42( X, Y ) ) ] )
% 1.61/1.98  , clause( 15122, [ ~( =( skac3, skac2 ) ) ] )
% 1.61/1.98  , clause( 15123, [ ~( ssItem( X ) ), geq( X, X ) ] )
% 1.61/1.98  , clause( 15124, [ ~( ssList( X ) ), segmentP( X, nil ) ] )
% 1.61/1.98  , clause( 15125, [ ~( ssList( X ) ), segmentP( X, X ) ] )
% 1.61/1.98  , clause( 15126, [ ~( ssList( X ) ), rearsegP( X, nil ) ] )
% 1.61/1.98  , clause( 15127, [ ~( ssList( X ) ), rearsegP( X, X ) ] )
% 1.61/1.98  , clause( 15128, [ ~( ssList( X ) ), frontsegP( X, nil ) ] )
% 1.61/1.98  , clause( 15129, [ ~( ssList( X ) ), frontsegP( X, X ) ] )
% 1.61/1.98  , clause( 15130, [ ~( ssItem( X ) ), leq( X, X ) ] )
% 1.61/1.98  , clause( 15131, [ ~( lt( X, X ) ), ~( ssItem( X ) ) ] )
% 1.61/1.98  , clause( 15132, [ ~( ssItem( X ) ), equalelemsP( cons( X, nil ) ) ] )
% 1.61/1.98  , clause( 15133, [ ~( ssItem( X ) ), duplicatefreeP( cons( X, nil ) ) ] )
% 1.61/1.98  , clause( 15134, [ ~( ssItem( X ) ), strictorderedP( cons( X, nil ) ) ] )
% 1.61/1.98  , clause( 15135, [ ~( ssItem( X ) ), totalorderedP( cons( X, nil ) ) ] )
% 1.61/1.98  , clause( 15136, [ ~( ssItem( X ) ), strictorderP( cons( X, nil ) ) ] )
% 1.61/1.98  , clause( 15137, [ ~( ssItem( X ) ), totalorderP( cons( X, nil ) ) ] )
% 1.61/1.98  , clause( 15138, [ ~( ssItem( X ) ), cyclefreeP( cons( X, nil ) ) ] )
% 1.61/1.98  , clause( 15139, [ ~( memberP( nil, X ) ), ~( ssItem( X ) ) ] )
% 1.61/1.98  , clause( 15140, [ ~( ssList( X ) ), duplicatefreeP( X ), ssItem( Y ) ] )
% 1.61/1.98  , clause( 15141, [ ~( ssList( X ) ), =( app( X, nil ), X ) ] )
% 1.61/1.98  , clause( 15142, [ ~( ssList( X ) ), =( app( nil, X ), X ) ] )
% 1.61/1.98  , clause( 15143, [ ~( ssList( X ) ), ssList( tl( X ) ), =( nil, X ) ] )
% 1.61/1.98  , clause( 15144, [ ~( ssList( X ) ), ssItem( hd( X ) ), =( nil, X ) ] )
% 1.61/1.98  , clause( 15145, [ ~( ssList( X ) ), ssList( tl( X ) ), =( nil, X ) ] )
% 1.61/1.98  , clause( 15146, [ ~( ssList( X ) ), ssItem( hd( X ) ), =( nil, X ) ] )
% 1.61/1.98  , clause( 15147, [ ~( =( nil, X ) ), ~( ssList( X ) ), segmentP( nil, X ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15148, [ ~( segmentP( nil, X ) ), ~( ssList( X ) ), =( nil, X ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15149, [ ~( =( nil, X ) ), ~( ssList( X ) ), rearsegP( nil, X ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15150, [ ~( rearsegP( nil, X ) ), ~( ssList( X ) ), =( nil, X ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15151, [ ~( =( nil, X ) ), ~( ssList( X ) ), frontsegP( nil, X )
% 1.61/1.98     ] )
% 1.61/1.98  , clause( 15152, [ ~( frontsegP( nil, X ) ), ~( ssList( X ) ), =( nil, X )
% 1.61/1.98     ] )
% 1.61/1.98  , clause( 15153, [ ~( ssList( X ) ), ~( ssList( Y ) ), ssList( app( Y, X )
% 1.61/1.98     ) ] )
% 1.61/1.98  , clause( 15154, [ ~( ssItem( X ) ), ~( ssList( Y ) ), ssList( cons( X, Y )
% 1.61/1.98     ) ] )
% 1.61/1.98  , clause( 15155, [ ~( ssList( X ) ), cyclefreeP( X ), leq( skaf50( X ), 
% 1.61/1.98    skaf49( X ) ) ] )
% 1.61/1.98  , clause( 15156, [ ~( ssList( X ) ), cyclefreeP( X ), leq( skaf49( X ), 
% 1.61/1.98    skaf50( X ) ) ] )
% 1.61/1.98  , clause( 15157, [ ~( =( skaf79( X ), skaf78( X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    equalelemsP( X ) ] )
% 1.61/1.98  , clause( 15158, [ ~( lt( skaf69( X ), skaf70( X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    strictorderedP( X ) ] )
% 1.61/1.98  , clause( 15159, [ ~( leq( skaf64( X ), skaf65( X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    totalorderedP( X ) ] )
% 1.61/1.98  , clause( 15160, [ ~( lt( skaf60( X ), skaf59( X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    strictorderP( X ) ] )
% 1.61/1.98  , clause( 15161, [ ~( lt( skaf59( X ), skaf60( X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    strictorderP( X ) ] )
% 1.61/1.98  , clause( 15162, [ ~( leq( skaf55( X ), skaf54( X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    totalorderP( X ) ] )
% 1.61/1.98  , clause( 15163, [ ~( leq( skaf54( X ), skaf55( X ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    totalorderP( X ) ] )
% 1.61/1.98  , clause( 15164, [ ~( ssItem( X ) ), ~( ssList( Y ) ), =( tl( cons( X, Y )
% 1.61/1.98     ), Y ) ] )
% 1.61/1.98  , clause( 15165, [ ~( ssItem( X ) ), ~( ssList( Y ) ), =( hd( cons( X, Y )
% 1.61/1.98     ), X ) ] )
% 1.61/1.98  , clause( 15166, [ ~( =( cons( X, Y ), nil ) ), ~( ssItem( X ) ), ~( ssList( 
% 1.61/1.98    Y ) ) ] )
% 1.61/1.98  , clause( 15167, [ ~( =( cons( X, Y ), Y ) ), ~( ssItem( X ) ), ~( ssList( 
% 1.61/1.98    Y ) ) ] )
% 1.61/1.98  , clause( 15168, [ ~( ssList( X ) ), ~( ssList( Y ) ), neq( Y, X ), =( Y, X
% 1.61/1.98     ) ] )
% 1.61/1.98  , clause( 15169, [ ~( singletonP( X ) ), ~( ssList( X ) ), =( cons( skaf44( 
% 1.61/1.98    X ), nil ), X ) ] )
% 1.61/1.98  , clause( 15170, [ ~( ssItem( X ) ), ~( ssItem( Y ) ), neq( Y, X ), =( Y, X
% 1.61/1.98     ) ] )
% 1.61/1.98  , clause( 15171, [ ~( lt( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), leq( 
% 1.61/1.98    X, Y ) ] )
% 1.61/1.98  , clause( 15172, [ ~( ssList( X ) ), =( cons( hd( X ), tl( X ) ), X ), =( 
% 1.61/1.98    nil, X ) ] )
% 1.61/1.98  , clause( 15173, [ ~( gt( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), lt( 
% 1.61/1.98    Y, X ) ] )
% 1.61/1.98  , clause( 15174, [ ~( lt( X, Y ) ), ~( ssItem( X ) ), ~( ssItem( Y ) ), gt( 
% 1.61/1.98    Y, X ) ] )
% 1.61/1.98  , clause( 15175, [ ~( geq( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), 
% 1.61/1.98    leq( Y, X ) ] )
% 1.61/1.98  , clause( 15176, [ ~( leq( X, Y ) ), ~( ssItem( X ) ), ~( ssItem( Y ) ), 
% 1.61/1.98    geq( Y, X ) ] )
% 1.61/1.98  , clause( 15177, [ ~( ssList( X ) ), =( cons( skaf83( X ), skaf82( X ) ), X
% 1.61/1.98     ), =( nil, X ) ] )
% 1.61/1.98  , clause( 15178, [ ~( gt( X, Y ) ), ~( gt( Y, X ) ), ~( ssItem( X ) ), ~( 
% 1.61/1.98    ssItem( Y ) ) ] )
% 1.61/1.98  , clause( 15179, [ ~( =( X, Y ) ), ~( lt( X, Y ) ), ~( ssItem( Y ) ), ~( 
% 1.61/1.98    ssItem( X ) ) ] )
% 1.61/1.98  , clause( 15180, [ ~( =( nil, X ) ), ~( ssList( X ) ), ~( ssItem( Y ) ), 
% 1.61/1.98    strictorderedP( cons( Y, X ) ) ] )
% 1.61/1.98  , clause( 15181, [ ~( =( nil, X ) ), ~( ssList( X ) ), ~( ssItem( Y ) ), 
% 1.61/1.98    totalorderedP( cons( Y, X ) ) ] )
% 1.61/1.98  , clause( 15182, [ ~( lt( X, Y ) ), ~( lt( Y, X ) ), ~( ssItem( X ) ), ~( 
% 1.61/1.98    ssItem( Y ) ) ] )
% 1.61/1.98  , clause( 15183, [ ~( =( X, Y ) ), ~( neq( X, Y ) ), ~( ssList( Y ) ), ~( 
% 1.61/1.98    ssList( X ) ) ] )
% 1.61/1.98  , clause( 15184, [ ~( =( cons( X, nil ), Y ) ), ~( ssItem( X ) ), ~( ssList( 
% 1.61/1.98    Y ) ), singletonP( Y ) ] )
% 1.61/1.98  , clause( 15185, [ ~( =( X, Y ) ), ~( neq( X, Y ) ), ~( ssItem( Y ) ), ~( 
% 1.61/1.98    ssItem( X ) ) ] )
% 1.61/1.98  , clause( 15186, [ ~( =( app( X, Y ), nil ) ), ~( ssList( Y ) ), ~( ssList( 
% 1.61/1.98    X ) ), =( nil, X ) ] )
% 1.61/1.98  , clause( 15187, [ ~( =( app( X, Y ), nil ) ), ~( ssList( Y ) ), ~( ssList( 
% 1.61/1.98    X ) ), =( nil, Y ) ] )
% 1.61/1.98  , clause( 15188, [ ~( ssItem( X ) ), ~( ssList( Y ) ), =( app( cons( X, nil
% 1.61/1.98     ), Y ), cons( X, Y ) ) ] )
% 1.61/1.98  , clause( 15189, [ ~( leq( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), lt( 
% 1.61/1.98    X, Y ), =( X, Y ) ] )
% 1.61/1.98  , clause( 15190, [ ~( leq( X, Y ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), lt( 
% 1.61/1.98    X, Y ), =( X, Y ) ] )
% 1.61/1.98  , clause( 15191, [ ~( ssList( X ) ), ~( ssList( Y ) ), =( nil, Y ), =( hd( 
% 1.61/1.98    app( Y, X ) ), hd( Y ) ) ] )
% 1.61/1.98  , clause( 15192, [ ~( strictorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), 
% 1.61/1.98    ~( ssItem( X ) ), strictorderedP( Y ), =( nil, Y ) ] )
% 1.61/1.98  , clause( 15193, [ ~( totalorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), 
% 1.61/1.98    ~( ssItem( X ) ), totalorderedP( Y ), =( nil, Y ) ] )
% 1.61/1.98  , clause( 15194, [ ~( geq( X, Y ) ), ~( geq( Y, X ) ), ~( ssItem( X ) ), 
% 1.61/1.98    ~( ssItem( Y ) ), =( Y, X ) ] )
% 1.61/1.98  , clause( 15195, [ ~( segmentP( X, Y ) ), ~( segmentP( Y, X ) ), ~( ssList( 
% 1.61/1.98    X ) ), ~( ssList( Y ) ), =( Y, X ) ] )
% 1.61/1.98  , clause( 15196, [ ~( rearsegP( X, Y ) ), ~( rearsegP( Y, X ) ), ~( ssList( 
% 1.61/1.98    X ) ), ~( ssList( Y ) ), =( Y, X ) ] )
% 1.61/1.98  , clause( 15197, [ ~( frontsegP( X, Y ) ), ~( frontsegP( Y, X ) ), ~( 
% 1.61/1.98    ssList( X ) ), ~( ssList( Y ) ), =( Y, X ) ] )
% 1.61/1.98  , clause( 15198, [ ~( leq( X, Y ) ), ~( leq( Y, X ) ), ~( ssItem( X ) ), 
% 1.61/1.98    ~( ssItem( Y ) ), =( Y, X ) ] )
% 1.61/1.98  , clause( 15199, [ ~( rearsegP( X, Y ) ), ~( ssList( Y ) ), ~( ssList( X )
% 1.61/1.98     ), =( app( skaf46( X, Y ), Y ), X ) ] )
% 1.61/1.98  , clause( 15200, [ ~( frontsegP( X, Y ) ), ~( ssList( Y ) ), ~( ssList( X )
% 1.61/1.98     ), =( app( Y, skaf45( X, Y ) ), X ) ] )
% 1.61/1.98  , clause( 15201, [ ~( ssList( X ) ), ~( ssList( Y ) ), =( nil, Y ), =( tl( 
% 1.61/1.98    app( Y, X ) ), app( tl( Y ), X ) ) ] )
% 1.61/1.98  , clause( 15202, [ ~( strictorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), 
% 1.61/1.98    ~( ssItem( X ) ), lt( X, hd( Y ) ), =( nil, Y ) ] )
% 1.61/1.98  , clause( 15203, [ ~( totalorderedP( cons( X, Y ) ) ), ~( ssList( Y ) ), 
% 1.61/1.98    ~( ssItem( X ) ), leq( X, hd( Y ) ), =( nil, Y ) ] )
% 1.61/1.98  , clause( 15204, [ ~( rearsegP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( Y )
% 1.61/1.98     ), ~( ssList( X ) ), rearsegP( app( Z, X ), Y ) ] )
% 1.61/1.98  , clause( 15205, [ ~( frontsegP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( Y )
% 1.61/1.98     ), ~( ssList( X ) ), frontsegP( app( X, Z ), Y ) ] )
% 1.61/1.98  , clause( 15206, [ ~( =( X, Y ) ), ~( ssList( Z ) ), ~( ssItem( Y ) ), ~( 
% 1.61/1.98    ssItem( X ) ), memberP( cons( Y, Z ), X ) ] )
% 1.61/1.98  , clause( 15207, [ ~( memberP( X, Y ) ), ~( ssList( X ) ), ~( ssItem( Z ) )
% 1.61/1.98    , ~( ssItem( Y ) ), memberP( cons( Z, X ), Y ) ] )
% 1.61/1.98  , clause( 15208, [ ~( memberP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( X ) )
% 1.61/1.98    , ~( ssItem( Y ) ), memberP( app( X, Z ), Y ) ] )
% 1.61/1.98  , clause( 15209, [ ~( memberP( X, Y ) ), ~( ssList( X ) ), ~( ssList( Z ) )
% 1.61/1.98    , ~( ssItem( Y ) ), memberP( app( Z, X ), Y ) ] )
% 1.61/1.98  , clause( 15210, [ ~( ssList( X ) ), equalelemsP( X ), =( app( skaf80( X )
% 1.61/1.98    , cons( skaf78( X ), cons( skaf79( X ), skaf81( X ) ) ) ), X ) ] )
% 1.61/1.98  , clause( 15211, [ ~( =( app( X, Y ), Z ) ), ~( ssList( X ) ), ~( ssList( Y
% 1.61/1.98     ) ), ~( ssList( Z ) ), rearsegP( Z, Y ) ] )
% 1.61/1.98  , clause( 15212, [ ~( =( app( X, Y ), Z ) ), ~( ssList( Y ) ), ~( ssList( X
% 1.61/1.98     ) ), ~( ssList( Z ) ), frontsegP( Z, X ) ] )
% 1.61/1.98  , clause( 15213, [ ~( =( nil, X ) ), ~( =( nil, Y ) ), ~( ssList( Y ) ), 
% 1.61/1.98    ~( ssList( X ) ), =( app( X, Y ), nil ) ] )
% 1.61/1.98  , clause( 15214, [ ~( gt( X, Y ) ), ~( gt( Y, Z ) ), ~( ssItem( Z ) ), ~( 
% 1.61/1.98    ssItem( Y ) ), ~( ssItem( X ) ), gt( X, Z ) ] )
% 1.61/1.98  , clause( 15215, [ ~( leq( X, Y ) ), ~( lt( Y, Z ) ), ~( ssItem( Z ) ), ~( 
% 1.61/1.98    ssItem( Y ) ), ~( ssItem( X ) ), lt( X, Z ) ] )
% 1.61/1.98  , clause( 15216, [ ~( geq( X, Y ) ), ~( geq( Y, Z ) ), ~( ssItem( Z ) ), 
% 1.61/1.98    ~( ssItem( Y ) ), ~( ssItem( X ) ), geq( X, Z ) ] )
% 1.61/1.98  , clause( 15217, [ ~( ssList( X ) ), ~( ssList( Y ) ), ~( ssList( Z ) ), 
% 1.61/1.98    =( app( app( Z, Y ), X ), app( Z, app( Y, X ) ) ) ] )
% 1.61/1.98  , clause( 15218, [ ~( =( app( X, Y ), app( X, Z ) ) ), ~( ssList( Y ) ), 
% 1.61/1.98    ~( ssList( X ) ), ~( ssList( Z ) ), =( Y, Z ) ] )
% 1.61/1.98  , clause( 15219, [ ~( =( app( X, Y ), app( Z, Y ) ) ), ~( ssList( X ) ), 
% 1.61/1.98    ~( ssList( Y ) ), ~( ssList( Z ) ), =( X, Z ) ] )
% 1.61/1.98  , clause( 15220, [ ~( segmentP( X, Y ) ), ~( segmentP( Y, Z ) ), ~( ssList( 
% 1.61/1.98    Z ) ), ~( ssList( Y ) ), ~( ssList( X ) ), segmentP( X, Z ) ] )
% 1.61/1.98  , clause( 15221, [ ~( rearsegP( X, Y ) ), ~( rearsegP( Y, Z ) ), ~( ssList( 
% 1.61/1.98    Z ) ), ~( ssList( Y ) ), ~( ssList( X ) ), rearsegP( X, Z ) ] )
% 1.61/1.98  , clause( 15222, [ ~( frontsegP( X, Y ) ), ~( frontsegP( Y, Z ) ), ~( 
% 1.61/1.98    ssList( Z ) ), ~( ssList( Y ) ), ~( ssList( X ) ), frontsegP( X, Z ) ] )
% 1.61/1.98  , clause( 15223, [ ~( lt( X, Y ) ), ~( lt( Y, Z ) ), ~( ssItem( Z ) ), ~( 
% 1.61/1.98    ssItem( Y ) ), ~( ssItem( X ) ), lt( X, Z ) ] )
% 1.61/1.98  , clause( 15224, [ ~( leq( X, Y ) ), ~( leq( Y, Z ) ), ~( ssItem( Z ) ), 
% 1.61/1.98    ~( ssItem( Y ) ), ~( ssItem( X ) ), leq( X, Z ) ] )
% 1.61/1.98  , clause( 15225, [ ~( ssItem( X ) ), ~( ssList( Y ) ), ~( ssList( Z ) ), 
% 1.61/1.98    =( cons( X, app( Y, Z ) ), app( cons( X, Y ), Z ) ) ] )
% 1.61/1.98  , clause( 15226, [ ~( memberP( app( X, Y ), Z ) ), ~( ssList( Y ) ), ~( 
% 1.61/1.98    ssList( X ) ), ~( ssItem( Z ) ), memberP( Y, Z ), memberP( X, Z ) ] )
% 1.61/1.98  , clause( 15227, [ ~( leq( X, hd( Y ) ) ), ~( totalorderedP( Y ) ), ~( 
% 1.61/1.98    ssList( Y ) ), ~( ssItem( X ) ), totalorderedP( cons( X, Y ) ), =( nil, Y
% 1.61/1.98     ) ] )
% 1.61/1.98  , clause( 15228, [ ~( lt( X, hd( Y ) ) ), ~( strictorderedP( Y ) ), ~( 
% 1.61/1.98    ssList( Y ) ), ~( ssItem( X ) ), strictorderedP( cons( X, Y ) ), =( nil, 
% 1.61/1.98    Y ) ] )
% 1.61/1.98  , clause( 15229, [ ~( memberP( cons( X, Y ), Z ) ), ~( ssList( Y ) ), ~( 
% 1.61/1.98    ssItem( X ) ), ~( ssItem( Z ) ), memberP( Y, Z ), =( Z, X ) ] )
% 1.61/1.98  , clause( 15230, [ ~( ssList( X ) ), duplicatefreeP( X ), =( app( app( 
% 1.61/1.98    skaf75( X ), cons( skaf74( X ), skaf76( X ) ) ), cons( skaf74( X ), 
% 1.61/1.98    skaf77( X ) ) ), X ) ] )
% 1.61/1.98  , clause( 15231, [ ~( ssList( X ) ), strictorderedP( X ), =( app( app( 
% 1.61/1.98    skaf71( X ), cons( skaf69( X ), skaf72( X ) ) ), cons( skaf70( X ), 
% 1.61/1.98    skaf73( X ) ) ), X ) ] )
% 1.61/1.98  , clause( 15232, [ ~( ssList( X ) ), totalorderedP( X ), =( app( app( 
% 1.61/1.98    skaf66( X ), cons( skaf64( X ), skaf67( X ) ) ), cons( skaf65( X ), 
% 1.61/1.98    skaf68( X ) ) ), X ) ] )
% 1.61/1.98  , clause( 15233, [ ~( ssList( X ) ), strictorderP( X ), =( app( app( skaf61( 
% 1.61/1.98    X ), cons( skaf59( X ), skaf62( X ) ) ), cons( skaf60( X ), skaf63( X ) )
% 1.61/1.98     ), X ) ] )
% 1.61/1.98  , clause( 15234, [ ~( ssList( X ) ), totalorderP( X ), =( app( app( skaf56( 
% 1.61/1.98    X ), cons( skaf54( X ), skaf57( X ) ) ), cons( skaf55( X ), skaf58( X ) )
% 1.61/1.98     ), X ) ] )
% 1.61/1.98  , clause( 15235, [ ~( ssList( X ) ), cyclefreeP( X ), =( app( app( skaf51( 
% 1.61/1.98    X ), cons( skaf49( X ), skaf52( X ) ) ), cons( skaf50( X ), skaf53( X ) )
% 1.61/1.98     ), X ) ] )
% 1.61/1.98  , clause( 15236, [ ~( segmentP( X, Y ) ), ~( ssList( Y ) ), ~( ssList( X )
% 1.61/1.98     ), =( app( app( skaf47( X, Y ), Y ), skaf48( Y, X ) ), X ) ] )
% 1.61/1.98  , clause( 15237, [ ~( memberP( X, Y ) ), ~( ssItem( Y ) ), ~( ssList( X ) )
% 1.61/1.98    , =( app( skaf42( X, Y ), cons( Y, skaf43( Y, X ) ) ), X ) ] )
% 1.61/1.98  , clause( 15238, [ ~( =( cons( X, Y ), cons( Z, T ) ) ), ~( ssItem( Z ) ), 
% 1.61/1.98    ~( ssItem( X ) ), ~( ssList( T ) ), ~( ssList( Y ) ), =( X, Z ) ] )
% 1.61/1.98  , clause( 15239, [ ~( =( cons( X, Y ), cons( Z, T ) ) ), ~( ssItem( Z ) ), 
% 1.61/1.98    ~( ssItem( X ) ), ~( ssList( T ) ), ~( ssList( Y ) ), =( T, Y ) ] )
% 1.61/1.98  , clause( 15240, [ ~( segmentP( X, Y ) ), ~( ssList( Z ) ), ~( ssList( T )
% 1.61/1.98     ), ~( ssList( Y ) ), ~( ssList( X ) ), segmentP( app( app( T, X ), Z ), 
% 1.61/1.98    Y ) ] )
% 1.61/1.98  , clause( 15241, [ ~( =( app( app( X, Y ), Z ), T ) ), ~( ssList( Z ) ), 
% 1.61/1.98    ~( ssList( X ) ), ~( ssList( Y ) ), ~( ssList( T ) ), segmentP( T, Y ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15242, [ ~( frontsegP( cons( X, Y ), cons( Z, T ) ) ), ~( ssList( 
% 1.61/1.98    T ) ), ~( ssList( Y ) ), ~( ssItem( Z ) ), ~( ssItem( X ) ), frontsegP( Y
% 1.61/1.98    , T ) ] )
% 1.61/1.98  , clause( 15243, [ ~( =( app( X, cons( Y, Z ) ), T ) ), ~( ssList( Z ) ), 
% 1.61/1.98    ~( ssList( X ) ), ~( ssItem( Y ) ), ~( ssList( T ) ), memberP( T, Y ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15244, [ ~( frontsegP( cons( X, Y ), cons( Z, T ) ) ), ~( ssList( 
% 1.61/1.98    T ) ), ~( ssList( Y ) ), ~( ssItem( Z ) ), ~( ssItem( X ) ), =( X, Z ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15245, [ ~( =( tl( X ), tl( Y ) ) ), ~( =( hd( X ), hd( Y ) ) ), 
% 1.61/1.98    ~( ssList( X ) ), ~( ssList( Y ) ), =( nil, Y ), =( X, Y ), =( nil, X ) ]
% 1.61/1.98     )
% 1.61/1.98  , clause( 15246, [ ~( frontsegP( X, Y ) ), ~( =( Z, T ) ), ~( ssList( Y ) )
% 1.61/1.98    , ~( ssList( X ) ), ~( ssItem( T ) ), ~( ssItem( Z ) ), frontsegP( cons( 
% 1.61/1.98    Z, X ), cons( T, Y ) ) ] )
% 1.61/1.98  , clause( 15247, [ ~( =( app( app( X, cons( Y, Z ) ), cons( Y, T ) ), U ) )
% 1.61/1.98    , ~( ssList( T ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( Y ) )
% 1.61/1.98    , ~( duplicatefreeP( U ) ), ~( ssList( U ) ) ] )
% 1.61/1.98  , clause( 15248, [ ~( =( app( X, cons( Y, cons( Z, T ) ) ), U ) ), ~( 
% 1.61/1.98    ssList( T ) ), ~( ssList( X ) ), ~( ssItem( Z ) ), ~( ssItem( Y ) ), ~( 
% 1.61/1.98    equalelemsP( U ) ), ~( ssList( U ) ), =( Y, Z ) ] )
% 1.61/1.98  , clause( 15249, [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) )
% 1.61/1.98    , ~( ssList( U ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) )
% 1.61/1.98    , ~( ssItem( Y ) ), ~( strictorderedP( W ) ), ~( ssList( W ) ), lt( Y, T
% 1.61/1.98     ) ] )
% 1.61/1.98  , clause( 15250, [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) )
% 1.61/1.98    , ~( ssList( U ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) )
% 1.61/1.98    , ~( ssItem( Y ) ), ~( totalorderedP( W ) ), ~( ssList( W ) ), leq( Y, T
% 1.61/1.98     ) ] )
% 1.61/1.98  , clause( 15251, [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) )
% 1.61/1.98    , ~( ssList( U ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) )
% 1.61/1.98    , ~( ssItem( Y ) ), ~( strictorderP( W ) ), ~( ssList( W ) ), lt( Y, T )
% 1.61/1.98    , lt( T, Y ) ] )
% 1.61/1.98  , clause( 15252, [ ~( =( app( app( X, cons( Y, Z ) ), cons( T, U ) ), W ) )
% 1.61/1.99    , ~( ssList( U ) ), ~( ssList( Z ) ), ~( ssList( X ) ), ~( ssItem( T ) )
% 1.61/1.99    , ~( ssItem( Y ) ), ~( totalorderP( W ) ), ~( ssList( W ) ), leq( Y, T )
% 1.61/1.99    , leq( T, Y ) ] )
% 1.61/1.99  , clause( 15253, [ ~( leq( X, Y ) ), ~( leq( Y, X ) ), ~( =( app( app( Z, 
% 1.61/1.99    cons( X, T ) ), cons( Y, U ) ), W ) ), ~( ssList( U ) ), ~( ssList( T ) )
% 1.61/1.99    , ~( ssList( Z ) ), ~( ssItem( Y ) ), ~( ssItem( X ) ), ~( cyclefreeP( W
% 1.61/1.99     ) ), ~( ssList( W ) ) ] )
% 1.61/1.99  , clause( 15254, [ ssList( sk1 ) ] )
% 1.61/1.99  , clause( 15255, [ ssList( sk2 ) ] )
% 1.61/1.99  , clause( 15256, [ ssList( sk3 ) ] )
% 1.61/1.99  , clause( 15257, [ ssList( sk4 ) ] )
% 1.61/1.99  , clause( 15258, [ =( sk2, sk4 ) ] )
% 1.61/1.99  , clause( 15259, [ =( sk1, sk3 ) ] )
% 1.61/1.99  , clause( 15260, [ ssList( sk5 ) ] )
% 1.61/1.99  , clause( 15261, [ =( app( sk3, sk5 ), sk4 ) ] )
% 1.61/1.99  , clause( 15262, [ strictorderedP( sk3 ) ] )
% 1.61/1.99  , clause( 15263, [ ~( ssItem( X ) ), ~( ssList( Y ) ), ~( =( app( cons( X, 
% 1.61/1.99    nil ), Y ), sk5 ) ), ~( ssItem( Z ) ), ~( ssList( T ) ), ~( =( app( T, 
% 1.61/1.99    cons( Z, nil ) ), sk3 ) ), ~( lt( Z, X ) ) ] )
% 1.61/1.99  , clause( 15264, [ =( nil, sk4 ), ~( =( nil, sk3 ) ) ] )
% 1.92/2.30  , clause( 15265, [ =( nil, sk2 ), =( nil, sk1 ) ] )
% 1.92/2.30  , clause( 15266, [ =( nil, sk2 ), ~( =( nil, sk2 ) ) ] )
% 1.92/2.30  , clause( 15267, [ ~( =( nil, sk1 ) ), =( nil, sk1 ) ] )
% 1.92/2.30  , clause( 15268, [ ~( =( nil, sk1 ) ), ~( =( nil, sk2 ) ) ] )
% 1.92/2.30  ] ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 60, [ ~( ssList( X ) ), frontsegP( X, X ) ] )
% 1.92/2.30  , clause( 15129, [ ~( ssList( X ) ), frontsegP( X, X ) ] )
% 1.92/2.30  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 1.92/2.30    1 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 81, [ ~( frontsegP( nil, X ) ), ~( ssList( X ) ), =( nil, X ) ] )
% 1.92/2.30  , clause( 15152, [ ~( frontsegP( nil, X ) ), ~( ssList( X ) ), =( nil, X )
% 1.92/2.30     ] )
% 1.92/2.30  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 1.92/2.30    1 ), ==>( 2, 2 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 115, [ ~( =( app( X, Y ), nil ) ), ~( ssList( Y ) ), ~( ssList( X )
% 1.92/2.30     ), =( nil, X ) ] )
% 1.92/2.30  , clause( 15186, [ ~( =( app( X, Y ), nil ) ), ~( ssList( Y ) ), ~( ssList( 
% 1.92/2.30    X ) ), =( nil, X ) ] )
% 1.92/2.30  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.92/2.30     ), ==>( 1, 1 ), ==>( 2, 2 ), ==>( 3, 3 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 146, [ ~( =( app( X, Y ), app( X, Z ) ) ), ~( ssList( Y ) ), ~( 
% 1.92/2.30    ssList( X ) ), ~( ssList( Z ) ), =( Y, Z ) ] )
% 1.92/2.30  , clause( 15218, [ ~( =( app( X, Y ), app( X, Z ) ) ), ~( ssList( Y ) ), 
% 1.92/2.30    ~( ssList( X ) ), ~( ssList( Z ) ), =( Y, Z ) ] )
% 1.92/2.30  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.92/2.30    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 ), ==>( 3, 3 ), 
% 1.92/2.30    ==>( 4, 4 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 182, [ ssList( sk1 ) ] )
% 1.92/2.30  , clause( 15254, [ ssList( sk1 ) ] )
% 1.92/2.30  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  eqswap(
% 1.92/2.30  clause( 17032, [ =( sk4, sk2 ) ] )
% 1.92/2.30  , clause( 15258, [ =( sk2, sk4 ) ] )
% 1.92/2.30  , 0, substitution( 0, [] )).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 186, [ =( sk4, sk2 ) ] )
% 1.92/2.30  , clause( 17032, [ =( sk4, sk2 ) ] )
% 1.92/2.30  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  eqswap(
% 1.92/2.30  clause( 17791, [ =( sk3, sk1 ) ] )
% 1.92/2.30  , clause( 15259, [ =( sk1, sk3 ) ] )
% 1.92/2.30  , 0, substitution( 0, [] )).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 187, [ =( sk3, sk1 ) ] )
% 1.92/2.30  , clause( 17791, [ =( sk3, sk1 ) ] )
% 1.92/2.30  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 188, [ ssList( sk5 ) ] )
% 1.92/2.30  , clause( 15260, [ ssList( sk5 ) ] )
% 1.92/2.30  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  paramod(
% 1.92/2.30  clause( 19706, [ =( app( sk1, sk5 ), sk4 ) ] )
% 1.92/2.30  , clause( 187, [ =( sk3, sk1 ) ] )
% 1.92/2.30  , 0, clause( 15261, [ =( app( sk3, sk5 ), sk4 ) ] )
% 1.92/2.30  , 0, 2, substitution( 0, [] ), substitution( 1, [] )).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  paramod(
% 1.92/2.30  clause( 19707, [ =( app( sk1, sk5 ), sk2 ) ] )
% 1.92/2.30  , clause( 186, [ =( sk4, sk2 ) ] )
% 1.92/2.30  , 0, clause( 19706, [ =( app( sk1, sk5 ), sk4 ) ] )
% 1.92/2.30  , 0, 4, substitution( 0, [] ), substitution( 1, [] )).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 189, [ =( app( sk1, sk5 ), sk2 ) ] )
% 1.92/2.30  , clause( 19707, [ =( app( sk1, sk5 ), sk2 ) ] )
% 1.92/2.30  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  paramod(
% 1.92/2.30  clause( 20894, [ =( nil, sk2 ), ~( =( nil, sk3 ) ) ] )
% 1.92/2.30  , clause( 186, [ =( sk4, sk2 ) ] )
% 1.92/2.30  , 0, clause( 15264, [ =( nil, sk4 ), ~( =( nil, sk3 ) ) ] )
% 1.92/2.30  , 0, 2, substitution( 0, [] ), substitution( 1, [] )).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  paramod(
% 1.92/2.30  clause( 20895, [ ~( =( nil, sk1 ) ), =( nil, sk2 ) ] )
% 1.92/2.30  , clause( 187, [ =( sk3, sk1 ) ] )
% 1.92/2.30  , 0, clause( 20894, [ =( nil, sk2 ), ~( =( nil, sk3 ) ) ] )
% 1.92/2.30  , 1, 3, substitution( 0, [] ), substitution( 1, [] )).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 192, [ =( nil, sk2 ), ~( =( nil, sk1 ) ) ] )
% 1.92/2.30  , clause( 20895, [ ~( =( nil, sk1 ) ), =( nil, sk2 ) ] )
% 1.92/2.30  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] )
% 1.92/2.30     ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  subsumption(
% 1.92/2.30  clause( 193, [ =( nil, sk2 ), =( nil, sk1 ) ] )
% 1.92/2.30  , clause( 15265, [ =( nil, sk2 ), =( nil, sk1 ) ] )
% 1.92/2.30  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] )
% 1.92/2.30     ).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  eqswap(
% 1.92/2.30  clause( 56436, [ ~( =( sk1, nil ) ), =( nil, sk2 ) ] )
% 1.92/2.30  , clause( 192, [ =( nil, sk2 ), ~( =( nil, sk1 ) ) ] )
% 1.92/2.30  , 1, substitution( 0, [] )).
% 1.92/2.30  
% 1.92/2.30  
% 1.92/2.30  paramod(
% 1.92/2.30  clause( 56442, [ ~( =( sk2, sk2 ) ), ~( =( sk1, nil ) ), ~( =( nil, sk1 ) )
% 1.92/2.30     ] )
% 1.92/2.30  , clause( 56436, [ ~( =( sk1, nil ) ), =( nil, sk2 ) ] )
% 1.92/2.30  , 1, clause( 15268, [ ~( =( nil, sk1 ) ), ~( =( nil, sk2 ) ) ] )
% 1.92/2.30  , 1, 2, substitution( 0, [] ), substitCputime limit exceeded (core dumped)
%------------------------------------------------------------------------------