Sommaire du Fascicule no. 1

Representability relative to a doctrine
Equational properties of recursive program scheme solutions
On boundedness and small-orthogonality classes

Sommaire du Fascicule no. 2

A note on the pennon definition of n-category
The role of symmetries in cubical sets and cubical categories
Klein's group as a borromean object
On the paper definable completeness
TAC : Theory and Applications of Categories
TAC

Sommaire du Fascicule no. 3

Covering morphisms and normal extensions in Galois structures associated with torsion theories
Infinitary linear combinations in reduced cotorsion modules
Centralizers in action accessible categories
Are all cofibrantly generated model categories combinatorial ?

Sommaire du Fascicule no. 4

Limits in symmetric cubical categories (On weak cubical categories, II)
Quasi-equations in locally presentable categories
Closedness properties of internal relations, VI : approximate operations