Volume LXVII (2026)

Issue 1 I Issue 2

Issue 1

Autocategories: IV. Drawing, graduation and coloration for autographic data
Pages 1-34
René Guitart

A Hopf formula for the fundamental group in the category of preordered groups
Pages 35-58
Aline Michel

Une généralisation du lemme de Yoneda
Pages 59-102
Jacques Penon

Strictly zero-dimensional biframes and Raney extensions
Pages 103-131
Anna Laura Suarez

Issue 2

In memory of Marek Zawadowski (1960-2024)
Page 133

Marek Zawadowski: a scientific biography
Pages 135-178
Pierre-Louis Curien, Silvio Ghilardi, Martin Hyland, Krzysztof Kapulkin, Jaap van Oosten, Karol Szumiło

On positive opetopes, positive opetopic cardinals and positive opetopic sets
Pages 179-313
Marek Zawadowski