9 October 2018
2:30 - 3:30   M Barr (McGill)
Contractible simplicial objects


We examine the question of what it means for a simplicial object to be contractible. We look at three answers and then show by examples in Sets that the three answers really are different. We have also discovered a new and useful way to look at simplicial homotopy

Michael Barr, McGill University
John F. Kennison, Clark University