1970/67/1

A new extension of countable compactness

An acyclic continuum that admits no mean

On decompositions of λ-dendroids

Irreducibly generated algebras

On extending homeomorphisms on zero-dimensional spaces

More decompositions of ${\displaystyle E^n}$ which are factors of ${\displaystyle E^n+1}$

Subdivision rings of a semiring

An example of a monostratiform λ-dendroid

Orbits of denumerable models of complete theories

Projective potencies and multiplicative extension operators

Constructive methods in probabilistic metric spaces

Sequents in many valued logic II

Poet algebras and pseudo-Post algebras

Compactness and chromatic number

On countably compact reduced product I