**23 September 2008**-
2:30 - 4:00 Victor Harnik

Computads and multitopic sets: two ways of specifying cells in higher dimensional categories

Given a collection of cells in a higher dimensional category, we have two formal languages in which we can describe other cells that can be obtained from them with the help of composition operations. One, based on the ordinary composition operations, can describe all such cells. The other, based on the so called

The subject is relevant to the problem of defining the concept of