Issue no. 1 Table of Contents

Structures defined by finite limits in the enriched context, I
Monoidal structures on graded categories
Syntactical theory of functors
Remarques sur les systèmes différentiels
The dual locale of a seminormed space
Sur la notion de diagramme homotopiquement cohérent

Issue no. 2 Table of Contents

Qu'est-ce que la logique dans une catégorie ?
Automata and categories
Sur l'équation intégro-différentielle non-linéaire et la topologie algébrique
An outline of non-abelian cohomology in a topos : (I) The theory of bouquets and gerbes
Systèmes dynamiques et fibrations. Concept d'opt-automate
The tower and regular decomposition
Exactitude dans les Yoneda-structures

Issue no. 3 Table of Contents

On a theorem of Baumslag, Dyer and Heller linking group theory and topology
Cauchy-completion and the associated sheaf
Cartesian spaces over T and locales over Ω(T)
Chain homotopy pullbacks and pushouts
Abstract pro arrows I
A cartesian closed extension of a category of affine schemes
Normal forms of matrices in topoi

Issue no. 4 Table of Contents

The algebraic theory of moving frames
Lifting tensorproducts along non-adjoint functors
Catégories localement triviales. Catégories microtransitives
Modulo C homotopy
On the structure of locally finite pure semisimple Grothendieck categories
Quotients, fractions, symmetrizations
Quotient systems in Grothendieck topoi