FAQ
logo of Jagiellonian University in Krakow

The Variety of Semi-Heyting Algebras Satisfying the Equation (0 → 1)* V (0 → 1)** ≈ 1

Publication date: 15.12.2011

Reports on Mathematical Logic, 2011, Number 46, pp. 75 - 90

https://doi.org/10.4467/20842589RM.11.005.0283

Authors

,
Manuel Abad
The National University of South, Bahía Blanca, Provincia de Buenos Aires, República Argentina
All publications →
,
Juan Manuel Cornejo
The National University of South, Bahía Blanca, Provincia de Buenos Aires, República Argentina
All publications →
José Patricio Díaz Varela
The National University of South, Bahía Blanca, Provincia de Buenos Aires, República Argentina
All publications →

Titles

The Variety of Semi-Heyting Algebras Satisfying the Equation (0 → 1)* V (0 → 1)** ≈ 1

Abstract

In [4, Definition 8.1], some important subvarieties of the variety SH of semi-Heyting algebras are defined. The purpose of this paper is to introduce and investigate the subvariety ISSH of SH, characterized by the identity(0 - 1)* v (0 - 1)** = 11. We prove that ISSH contains all the subvarieties introduced by Sankappanavar and it is in fact the least subvariety of SH with this property. We also determine the sublattice generated by the subvarieties introduced in [4, Definition 8.1] within the lattice of subvarieties of semi-Heyting algebras.

References

[1] M. Abad, J.M. Cornejo and J.P. Diaz Varela, The Variety Generated by SemiHeyting Chains, submitted for publication.
[2] R. Balbes and P.H. Dwinger, Distributive lattices, University of Missouri Press, Columbia, 1974.
[3] S. Burris and H.P. Sankappanavar, A Course in Universal Algebra, Graduate Texts in Mathematics 78, Springer-Verlag, New York, 1981.
[4] H.P. Sankappanavar, Semi-Heyting Algebras: An Abstraction From Heyting Algebras. Actas del IX Congreso A. Monteiro, Bah´ıa Blanca, 2007, pp. 33–66.

Information

Information: Reports on Mathematical Logic, 2011, Number 46, pp. 75 - 90

Article type: Original article

Titles:

Polish:

The Variety of Semi-Heyting Algebras Satisfying the Equation (0 → 1)* V (0 → 1)** ≈ 1

English:

The Variety of Semi-Heyting Algebras Satisfying the Equation (0 → 1)* V (0 → 1)** ≈ 1

Authors

The National University of South, Bahía Blanca, Provincia de Buenos Aires, República Argentina

The National University of South, Bahía Blanca, Provincia de Buenos Aires, República Argentina

The National University of South, Bahía Blanca, Provincia de Buenos Aires, República Argentina

Published at: 15.12.2011

Article status: Open

Licence: None

Percentage share of authors:

Manuel Abad (Author) - 33%
Juan Manuel Cornejo (Author) - 33%
José Patricio Díaz Varela (Author) - 34%

Article corrections:

-

Publication languages:

English