%------------------------------------------------------------------------------
% File     : KLE117+1 : TPTP v9.0.0. Released v4.0.0.
% Domain   : Kleene Algebra (Modal Semirings)
% Problem  : Diamonds are isotone
% 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   : 0.79 v9.0.0, 0.83 v7.5.0, 0.81 v7.4.0, 0.80 v7.3.0, 0.83 v7.2.0, 0.86 v7.1.0, 0.83 v7.0.0, 0.87 v6.4.0, 0.85 v6.3.0, 0.83 v6.2.0, 0.92 v6.1.0, 0.93 v6.0.0, 0.91 v5.5.0, 0.93 v5.2.0, 0.95 v5.0.0, 0.96 v4.1.0, 1.00 v4.0.1, 0.96 v4.0.0
% Syntax   : Number of formulae    :   27 (  25 unt;   0 def)
%            Number of atoms       :   29 (  28 equ)
%            Maximal formula atoms :    2 (   1 avg)
%            Number of connectives :    2 (   0   ~;   0   |;   0   &)
%                                         (   1 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    5 (   3 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   0 prp; 2-2 aty)
%            Number of functors    :   14 (  14 usr;   2 con; 0-2 aty)
%            Number of variables   :   46 (  46   !;   0   ?)
% SPC      : FOF_THM_RFO_SEQ

% Comments : There is a dual law for backward diamonds.
%          : 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,X1] :
      ( addition(X0,X1) = X1
     => ! [X2] : addition(forward_diamond(X0,domain(X2)),forward_diamond(X1,domain(X2))) = forward_diamond(X1,domain(X2)) ) ).

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