Tome 32 (1991) no. 1

Sommaire

International category theory meeting. Bangor, Wales, july 2-7 1989. Cambridge, England, march 23-25, 1990
p. 3
More on graphic toposes
p. 5-10
Combinatorial-geometric aspects of polycategory theory : pasting schemes and higher Bruhat orders (list of results)
p. 11-27
∞-groupoids and homotopy types
p. 29-46
A 2-categorical approach to change of base and geometric morphisms I
p. 47-95