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Erschienen in:
02.01.2019 | Foundations
On a hereditarily finitely based ai-semiring variety
Erschienen in: Soft Computing | Ausgabe 16/2019
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Abstract
Let \(\mathbf{W}\) denote the join of the ai-semiring variety axiomatized by \(x^2\approx x\) and the ai-semiring variety axiomatized by \(xy\approx zt\). We show that the lattice of subvarieties of \(\mathbf{W}\), \(\mathcal{L}(\mathbf{W})\), is a distributive lattice of order 312. Also, all members of this variety are finitely based and finitely generated. Thus, \(\mathbf{W}\) is hereditarily finitely based.