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Chajda, Ivan; Länger, Helmut

A simple basis of ideal terms of Brouwerian semilattices. (English) Zbl 1040.06001

Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 40, 37-42 (2001).
Summary: A list of four terms is given such that a subset of a Brouwerian lattice \({\mathbf S}\) containing 1 is a kernel (i.e. 1-class) of some congruence on \({\mathbf S}\) if and only if it is closed with respect to these four terms.

MSC:

06A12 Semilattices
06B10 Lattice ideals, congruence relations

Keywords:

ideal term; congruence kernel; Brouwerian lattice
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\textit{I. Chajda} and \textit{H. Länger}, Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 40, 37--42 (2001; Zbl 1040.06001)
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References:

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