%--------------------------------------------------------------------------
% File     : SWC261+1 : TPTP v9.0.0. Released v2.4.0.
% Domain   : Software Creation
% Problem  : cond_pst_sorted1_x_pst_equal3
% Version  : [Wei00] axioms.
% English  : Find components in a software library that match a given target
%            specification given in first-order logic. The components are
%            specified in first-order logic as well. The problem represents
%            a test of one library module specification against a target
%            specification.

% Refs     : [Wei00] Weidenbach (2000), Software Reuse of List Functions Ve
%          : [FSS98] Fischer et al. (1998), Deduction-Based Software Compon
% Source   : [Wei00]
% Names    : cond_pst_sorted1_x_pst_equal3 [Wei00]

% Status   : Theorem
% Rating   : 0.85 v9.0.0, 0.86 v8.2.0, 0.89 v8.1.0, 0.92 v7.5.0, 0.91 v7.4.0, 0.90 v7.3.0, 0.93 v7.2.0, 0.90 v7.1.0, 0.91 v7.0.0, 0.80 v6.4.0, 0.85 v6.3.0, 0.79 v6.2.0, 0.88 v6.1.0, 0.93 v6.0.0, 0.91 v5.5.0, 0.93 v5.2.0, 0.90 v5.0.0, 0.96 v4.1.0, 1.00 v2.6.0, 0.83 v2.4.0
% Syntax   : Number of formulae    :   96 (   9 unt;   0 def)
%            Number of atoms       :  405 (  74 equ)
%            Maximal formula atoms :   11 (   4 avg)
%            Number of connectives :  337 (  28   ~;  12   |;  40   &)
%                                         (  26 <=>; 231  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   18 (   7 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :   20 (  19 usr;   0 prp; 1-2 aty)
%            Number of functors    :    5 (   5 usr;   1 con; 0-2 aty)
%            Number of variables   :  209 ( 195   !;  14   ?)
% SPC      : FOF_THM_RFO_SEQ

% Comments :
%--------------------------------------------------------------------------
%----Include list specification axioms
include('Axioms/SWC001+0.ax').
%--------------------------------------------------------------------------
fof(co1,conjecture,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X] :
                  ( ~ ssList(X)
                  | V != X
                  | U != W
                  | ! [Y] :
                      ( ssItem(Y)
                     => ? [Z] :
                          ( ssItem(Z)
                          & Y != Z
                          & memberP(W,Z) ) )
                  | totalorderedP(U) ) ) ) ) ).

%--------------------------------------------------------------------------