English

The additively idempotent semiring $S_7^0$ is nonfinitely based

Group Theory 2023-08-08 v1 Logic

Abstract

We show that the additively idempotent semiring S70S_7^0 has no finite basis for its equational theory. This answers an open problem posed by Jackson et al. (J. Algebra 611 (2022), 211--245).

Cite

@article{arxiv.2308.03101,
  title  = {The additively idempotent semiring $S_7^0$ is nonfinitely based},
  author = {Yanan Wu and Miaomiao Ren and Xianzhong Zhao},
  journal= {arXiv preprint arXiv:2308.03101},
  year   = {2023}
}
R2 v1 2026-06-28T11:49:11.195Z