Sommaire du Fascicule no. 1

Contents
On decomposition of projections of finite order
p. 3-8
On midpoints in lattices
p. 9-15
Groupoids and the associative law III. (Szász-Hájek groupoids)
p. 17-30
Groupoids and the associative law V. (Szász-Hájek groupoids fo type (A, A, B))
p. 31-44

Sommaire du Fascicule no. 2

Foreword
Connectivity properties of sequential Boolean algebras
p. 5-18
Radon spaces which are not $\sigma$-fragmentable
p. 19-25
Remark on generalization of Minkowski's inequality
p. 27-32
On the Boolean structure generated by $Q$-points of $\omega^\ast$
p. 33-38
The Wiener transformation on the limits of symmetric spaces
p. 39-52
Some properties of $n$-dimensional generalized cubes
p. 53-62
Skorohod's spaces
p. 63-67
Compositions of operator ideals and their regular hulls
p. 69-72
Positive definite diagonal sequences
p. 73-83
On the Suslin number of subgroups of products of countable groups
p. 85-87