TPTP Problem File: KLE114+1.p

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```%------------------------------------------------------------------------------
% File     : KLE114+1 : TPTP v7.5.0. Released v4.0.0.
% Domain   : Kleene Algebra (Modal Semirings)
% Problem  : Boxes are costrict
% Version  : [Hoe08] axioms.
% English  :

% Refs     : [DMS04] Desharnais et al. (2004), Termination in Modal Kleene
%          : [Hoe08] Hoefner (2008), Email to G. Sutcliffe
% Source   : [Hoe08]
% Names    :

% Status   : Theorem
% Rating   : 0.22 v7.5.0, 0.25 v7.4.0, 0.07 v7.3.0, 0.21 v7.2.0, 0.24 v7.1.0, 0.17 v7.0.0, 0.23 v6.4.0, 0.27 v6.3.0, 0.21 v6.2.0, 0.28 v6.1.0, 0.37 v6.0.0, 0.35 v5.5.0, 0.44 v5.4.0, 0.46 v5.3.0, 0.52 v5.2.0, 0.45 v5.1.0, 0.48 v5.0.0, 0.42 v4.1.0, 0.39 v4.0.0
% Syntax   : Number of formulae    :   27 (  26 unit)
%            Number of atoms       :   28 (  27 equality)
%            Maximal formula depth :    4 (   3 average)
%            Number of connectives :    1 (   0   ~;   0   |;   0   &)
%                                         (   1 <=>;   0  =>;   0  <=;   0 <~>)
%                                         (   0  ~|;   0  ~&)
%            Number of predicates  :    2 (   0 propositional; 2-2 arity)
%            Number of functors    :   14 (   2 constant; 0-2 arity)
%            Number of variables   :   44 (   0 sgn;  44   !;   0   ?)
%            Maximal term depth    :    6 (   2 average)
% SPC      : FOF_THM_RFO_SEQ

% Comments : There is a dual law for backward boxes.
%          : Equational encoding
%------------------------------------------------------------------------------
%---Include axioms for modal semiring
include('Axioms/KLE001+0.ax').
%---Include axioms for Boolean domain/codomain
include('Axioms/KLE001+4.ax').
%---Include axioms for diamond and boxes
include('Axioms/KLE001+6.ax').
%------------------------------------------------------------------------------
fof(goals,conjecture,(
! [X0] : forward_box(X0,one) = one )).

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