## TPTP Problem File: SEV395^5.rm

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```%------------------------------------------------------------------------------
% File     : SEV395^5 : TPTP v7.5.0. Bugfixed v5.1.0.
% Domain   : Set Theory
% Problem  : TPS problem THM104
% Version  : Especial.
% English  : Example from [And89].

% Refs     : [And89] Andrews (1989), On Connections and Higher-Order Logic
%          : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% Source   : [Bro09]
% Names    : tps_0341 [Bro09]
%          : THM104 [TPS]

% Status   : Theorem
% Rating   : 0.20 v4.1.0, 0.00 v4.0.0
% Syntax   : Number of formulae    :    2 (   1 unit;   1 type;   0 defn)
%            Number of atoms       :   15 (   4 equality;   6 variable)
%            Maximal formula depth :    7 (   4 average)
%            Number of connectives :    1 (   0   ~;   0   |;   0   &;   0   @)
%                                         (   0 <=>;   1  =>;   0  <=;   0 <~>)
%                                         (   0  ~|;   0  ~&;   0  !!;   0  ??)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    2 (   1   :;   0  :=)
%            Number of variables   :    4 (   0 sgn;   2   !;   0   ?;   2   ^)
%                                         (   4   :;   0  :=;   0  !>;   0  ?*)
%                                         (   0  @-;   0  @+)
% SPC      : THF_THM_EQU

% Comments : This problem is from the TPS library. Copyright (c) 2009 The TPS
%            project in the Department of Mathematical Sciences at Carnegie