## TPTP Problem File: SEV129^5.p

View Solutions - Solve Problem

```%------------------------------------------------------------------------------
% File     : SEV129^5 : TPTP v8.1.2. Released v4.0.0.
% Domain   : Set Theory (Relations)
% Problem  : TPS problem from SETS-OF-RELNS-THMS
% Version  : Especial.
% English  :

% Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% Source   : [Bro09]
% Names    : tps_1139 [Bro09]

% Status   : Theorem
% Rating   : 0.46 v8.1.0, 0.55 v7.5.0, 0.43 v7.4.0, 0.33 v7.2.0, 0.25 v7.0.0, 0.14 v6.4.0, 0.17 v6.3.0, 0.20 v6.2.0, 0.43 v6.1.0, 0.29 v5.5.0, 0.50 v5.4.0, 0.60 v5.2.0, 0.80 v4.1.0, 1.00 v4.0.0
% Syntax   : Number of formulae    :    2 (   1 unt;   1 typ;   0 def)
%            Number of atoms       :    1 (   1 equ;   0 cnn)
%            Maximal formula atoms :    1 (   1 avg)
%            Number of connectives :   57 (   0   ~;   0   |;   9   &;  38   @)
%                                         (   0 <=>;  10  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   16 (  16 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :   15 (  15   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    1 (   0 usr;   0 con; 2-2 aty)
%            Number of variables   :   26 (   2   ^  21   !;   3   ?;  26   :)
% 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
%------------------------------------------------------------------------------
thf(a_type,type,
a: \$tType ).

thf(cTHM253_A_pme,conjecture,
! [S: ( a > a > \$o ) > \$o,Xx: a,Xy: a] :
( ! [Xp1: a > a > \$o] :
( ( ! [Xx0: a,Xy0: a] :
( ? [R: a > a > \$o] :
( ( S @ R )
& ( R @ Xx0 @ Xy0 ) )
=> ( Xp1 @ Xx0 @ Xy0 ) )
& ! [Xx0: a,Xy0: a,Xz: a] :
( ( ( Xp1 @ Xx0 @ Xy0 )
& ( Xp1 @ Xy0 @ Xz ) )
=> ( Xp1 @ Xx0 @ Xz ) ) )
=> ( Xp1 @ Xx @ Xy ) )
=> ! [Xp1: a > a > \$o] :
( ( ! [Xx0: a,Xy0: a] :
( ? [R: a > a > \$o] :
( ? [Q: a > a > \$o] :
( ( S @ Q )
& ( R
= ( ^ [Xx1: a,Xy1: a] :
! [Xp10: a > a > \$o] :
( ( ! [Xx2: a,Xy2: a] :
( ( Q @ Xx2 @ Xy2 )
=> ( Xp10 @ Xx2 @ Xy2 ) )
& ! [Xx2: a,Xy2: a,Xz: a] :
( ( ( Xp10 @ Xx2 @ Xy2 )
& ( Xp10 @ Xy2 @ Xz ) )
=> ( Xp10 @ Xx2 @ Xz ) ) )
=> ( Xp10 @ Xx1 @ Xy1 ) ) ) ) )
& ( R @ Xx0 @ Xy0 ) )
=> ( Xp1 @ Xx0 @ Xy0 ) )
& ! [Xx0: a,Xy0: a,Xz: a] :
( ( ( Xp1 @ Xx0 @ Xy0 )
& ( Xp1 @ Xy0 @ Xz ) )
=> ( Xp1 @ Xx0 @ Xz ) ) )
=> ( Xp1 @ Xx @ Xy ) ) ) ).

%------------------------------------------------------------------------------
```