Sommaire du Fascicule no. 1

A graph structure over the category of sets and partial functions
Homotopy colimits in presheaf categories
On classification of 4-manifolds according to genus
General associativity and general composition for double categories

Sommaire du Fascicule no. 2

Un modèle de filtres pour l'analyse réelle synthétique
An abstract characterization of the jet spaces
Local to global properties in the theory of fibrations
Pullbacks equivalent to pseudopullbacks
Corrections to the paper “The cartesian closed topological hull of the category of completely regular filterspaces”

Sommaire du Fascicule no. 3

A farewell to Jan Reiterman
Equationally close subframes and representation of quotient spaces
On the failure of Birkhoff's theorem for locally small based equational categories of algebras
Composites of effective descent maps
Sheaves on a quantale
The Linton theorem revisited
Universal concrete categories and functors

Sommaire du Fascicule no. 4

Using the generic interval
A note on categories enriched in quantaloids and modal and temporal logic
Coherent categories with respect to monads and coherent prohomotopy theory
Crossed modules as G-categories
Simplicial homology of preconvexity spaces