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The characterization of index varieties for De Morgan Płonka decompositions
Let ${\bf A}$ be a non-trivial algebra of type $\mathcal{L}$ satisfying the De Morgan identities, with a De Morgan partition function $\odot$ , and let…
Theoremrefutedde-morgan-algebras involutive-semilattices plonka-sumsarXiv posted 2 days ago

The characterization of index varieties for De Morgan Płonka decompositions