Issue no. 1 Table of Contents

Topological balls
p. 3-20
On the jets of fibred manifold morphisms
p. 21-30
Approche polygraphique des ∞-catégories non strictes
p. 31-80

Issue no. 2 Table of Contents

Uniform filters
p. 82-126
A note on frame distributions
p. 127-140
Liftings of Stone's monadicity to spaces and the duality between the calculi of inverse and direct images
p. 141-157

Issue no. 3 Table of Contents

Limits in double categories
p. 162-220
Composing special epimorphisms and retractions
p. 221-226
La classe des morphismes de Dwyer n'est pas stable par rétractes
p. 227-231
Stone spaces of more partially ordered sets
p. 233-240

Issue no. 4 Table of Contents

Fibrewise exponential laws in a quasitopos
p. 242-260
Free crossed resolutions from simplicial resolutions with given CW-basis
p. 261-283
Multi-bimodels
p. 284-296
Baer sums and fibered aspects of Mal'cev operations
p. 297-316