The study of monadic algebraic structures and fuzzy logic has evolved into a vibrant research area that bridges abstract algebra with the nuanced reasoning of uncertainty. By incorporating unary ...

The problematic features of Quine's 'set' theories NF and ML are a result of his replacing the higher-order predicate logic of type theory by a first-order logic of membership, and can be resolved by ...

We say that an n-argument predicate $P\subset \Omega ^{n}$ is finite, if P is a finite set. Note that the set of individuals Ω is infinite! Finite predicates are ...