TPTP Problem File: REL050-1.p
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%------------------------------------------------------------------------------
% File : REL050-1 : TPTP v9.0.0. Released v4.0.0.
% Domain : Relation Algebra
% Problem : The complement of x;TOP is left ideal
% Version : [Mad95] (equational) axioms.
% English :
% Refs : [Mad95] Maddux (1995), Relation-Algebraic Semantics
% : [Hoe08] Hoefner (2008), Email to G. Sutcliffe
% Source : [Hoe08]
% Names :
% Status : Unsatisfiable
% Rating : 0.41 v8.2.0, 0.42 v8.1.0, 0.45 v7.5.0, 0.42 v7.4.0, 0.43 v7.3.0, 0.42 v7.1.0, 0.33 v7.0.0, 0.42 v6.4.0, 0.53 v6.2.0, 0.57 v6.1.0, 0.50 v6.0.0, 0.67 v5.5.0, 0.63 v5.4.0, 0.53 v5.3.0, 0.50 v5.1.0, 0.53 v5.0.0, 0.50 v4.1.0, 0.45 v4.0.1, 0.50 v4.0.0
% Syntax : Number of clauses : 14 ( 14 unt; 0 nHn; 1 RR)
% Number of literals : 14 ( 14 equ; 1 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 5 ( 2 avg)
% Number of predicates : 1 ( 0 usr; 0 prp; 2-2 aty)
% Number of functors : 9 ( 9 usr; 4 con; 0-2 aty)
% Number of variables : 25 ( 0 sgn)
% SPC : CNF_UNS_RFO_PEQ_UEQ
% Comments : tptp2X -f tptp:short -t cnf:otter REL050+1.p
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%----Include axioms of relation algebra
include('Axioms/REL001-0.ax').
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cnf(goals_14,negated_conjecture,
complement(composition(sk1,top)) != composition(complement(composition(sk1,top)),top) ).
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