On a weak Kelley-Morse theory of classes
On fuzzy-quantities with real and integer values
On models in the alternative set theory
On sentences provable in impredicative extensions of theories [Book]
On the adjunction of any semiset to the system of -classes in AST
On the algebraic structure of fuzzy sets of type 2
On the existence of factor sets by external equivalences in IST.
On the number of models of the Kelley-Morse theory of classes