States on symmetric logics: extensions
Айрат Мидхатович Бикчентаев, Mirko Navara · Mathematica Slovaca · 2016
Abstract We continue the study ofsymmetric logics, i.e., collections of subsets generalizing Boolean algebras and closed under the symmetric difference. We contribute to several open questions. One of them is whether there is á non-Boolean symmetric logic such that all states on it are Δ-subadditive.