Boolean center of lattice ordered $EQ$-algebras with bottom element

Document Type : Research Paper

Authors

Departement of Mathematics, Kerman Branch, Islamic Azad university, Kerman,Iran.

Abstract

In this paper, some new properties of $EQ$-algebras are investigated. We introduce and study the notion of Boolean center of lattice ordered $EQ$-algebras with bottom element. We show that in a good $\ell EQ$-algebra $E$ with bottom element the complement of an element is unique. Furthermore, Boolean elements of a good bounded lattice $EQ$-algebra are characterized. Finally, we obtain conditions under which Boolean center of an $EQ$-algebra $E$ is the subalgebra of $E$. 

Keywords


[1] C.C. Chang, Algebraic analysis of many valued logics, Trans Am Math Soc 88 (1958) 467-490.
[2] M. El-Zekey, Representable good EQ-algebras, Soft Computing, 14 (2010) 1011-1023.
[3] M. El-Zekey, V. Novak, R. Mesiar, On good EQ-algebras, Fuzzy sets and systems, 178 (2011) 1-23.
[4] F. Esteva, L. Godo, Monoidal t-norm based logic: towards a logic for left-continuous t-norms, Fuzzy SetsSystems, 124 (2001) 271-288.
[5] G. Georgescu, L. Leustean, C. Muresan, Maximal residuated lattices with lifting Boolean center, Algebra Universalis (2010) 63(1) 83-99.
[6] J. Gispert, A. Torrens, Boolean representation of bounded BCK-algebras, Soft Comput 12 (2008) 941-954.
[7] N. Mohtashamnia, L. Torkzadeh, The lattice of pre lters of an EQ-algebra, Fuzzy Sets and Systems, 311 (2017) 86-98.
[8] P. Hajek, Metamathematics of Fuzzy Logic, Kluwer, Dordrecht (1998).
[9] L. Z. Liu, K.T. Li, R0-algebras and weak dually residuated lattice ordered semigroups, Czech Math J, 56 (2006) 339-348.
[10] V. Novak, EQ-algebras:primary concepts and properties, in: Proc. Czech-Japan Seminar, Ninth Meeting. Kitakyushu and Nagasaki, Graduate School of Information, Waseda University, August (2006) 18-22.
[11] V. Novak, B. De Baets, EQ-algebra, Fuzzy sets and systems, 160 (2009) 2956-2978.
[12] L. A. Zadeh, Is there a need for fuzzy logic? Inform Science, 178 (2008) 2751-2779.
[13] H. J. Zhou and B. Zhao, Stone-like representation theorems and three-valued letters in R0-algebras (nilpotent minimum algebras), Fuzzy Sets Systems, 162 (2011) 1-26.