## TPTP Problem File: SEV307^5.rm

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```%------------------------------------------------------------------------------
% File     : SEV307^5 : TPTP v7.5.0. Bugfixed v5.1.0.
% Domain   : Set Theory
% Problem  : TPS problem THM2E
% Version  : Especial.
% English  : Related to the Knaster-Tarski theorem.

% Refs     : [Bro09] Brown (2009), Email to Geoff Sutcliffe
% Source   : [Bro09]
% Names    : tps_0306 [Bro09]
%          : THM2E [TPS]

% Status   : Theorem
% Rating   : 0.75 v4.1.0, 0.67 v4.0.0
% Syntax   : Number of formulae    :    2 (   0 unit;   1 type;   0 defn)
%            Number of atoms       :   28 (   0 equality;  12 variable)
%            Maximal formula depth :    9 (   6 average)
%            Number of connectives :   14 (   0   ~;   0   |;   0   &;   9   @)
%                                         (   1 <=>;   4  =>;   0  <=;   0 <~>)
%                                         (   0  ~|;   0  ~&;   0  !!;   0  ??)
%            Number of type conns  :    6 (   6   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    3 (   1   :;   0  :=)
%            Number of variables   :    6 (   0 sgn;   5   !;   1   ?;   0   ^)
%                                         (   6   :;   0  :=;   0  !>;   0  ?*)
%                                         (   0  @-;   0  @+)
% SPC      : THF_THM_NEQ

% 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