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arXiv · 1009.1239

Proofs of definability of some varieties and sets of varieties of semigroups

B. M. Vernikov
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Abstract

We show that many important varieties and sets of varieties of semigroups may be defined by relatively simple and transparent first-order formulas in the lattice of all semigroup varieties.

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B. M. Vernikov. 2010-09-07. Proofs of definability of some varieties and sets of varieties of semigroups. https://arxiv.org/abs/1009.1239

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