%------------------------------------------------------------------------------
% File     : SEU885^5 : TPTP v9.0.0. Released v4.0.0.
% Domain   : Set Theory
% Problem  : TPS problem THM30A
% Version  : Especial.
% English  :

% Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% Source   : [Bro09]
% Names    : tps_0241 [Bro09]
%          : THM30A [TPS]

% Status   : Theorem
% Rating   : 0.00 v6.1.0, 0.14 v5.5.0, 0.17 v5.4.0, 0.20 v5.3.0, 0.40 v5.2.0, 0.20 v4.1.0, 0.00 v4.0.0
% Syntax   : Number of formulae    :    6 (   0 unt;   5 typ;   0 def)
%            Number of atoms       :    6 (   2 equ;   0 cnn)
%            Maximal formula atoms :    6 (   6 avg)
%            Number of connectives :   11 (   0   ~;   0   |;   2   &;   6   @)
%                                         (   0 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   7 avg)
%            Number of types       :    3 (   2 usr)
%            Number of type conns  :    3 (   3   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    4 (   3 usr;   0 con; 1-2 aty)
%            Number of variables   :    4 (   0   ^;   2   !;   2   ?;   4   :)
% SPC      : TH0_THM_EQU_NAR

% Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
%            project in the Department of Mathematical Sciences at Carnegie
%            Mellon University. Distributed under the Creative Commons copyleft
%            license: http://creativecommons.org/licenses/by-sa/3.0/
%          : Polymorphic definitions expanded.
%------------------------------------------------------------------------------
thf(b_type,type,
    b: $tType ).

thf(a_type,type,
    a: $tType ).

thf(cF,type,
    cF: b > a ).

thf(cV,type,
    cV: b > $o ).

thf(cU,type,
    cU: b > $o ).

thf(cTHM30A_pme,conjecture,
    ( ! [Xx: b] :
        ( ( cU @ Xx )
       => ( cV @ Xx ) )
   => ! [Xx: a] :
        ( ? [Xt: b] :
            ( ( cU @ Xt )
            & ( Xx
              = ( cF @ Xt ) ) )
       => ? [Xt: b] :
            ( ( cV @ Xt )
            & ( Xx
              = ( cF @ Xt ) ) ) ) ) ).

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